CA2441028A1 - Method of making interpolymers and products made therefrom - Google Patents
Method of making interpolymers and products made therefrom Download PDFInfo
- Publication number
- CA2441028A1 CA2441028A1 CA002441028A CA2441028A CA2441028A1 CA 2441028 A1 CA2441028 A1 CA 2441028A1 CA 002441028 A CA002441028 A CA 002441028A CA 2441028 A CA2441028 A CA 2441028A CA 2441028 A1 CA2441028 A1 CA 2441028A1
- Authority
- CA
- Canada
- Prior art keywords
- molecular weight
- polymer
- reactor
- catalyst
- high molecular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65908—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/65922—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
- C08F4/65925—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually non-bridged
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/65922—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
- C08F4/65927—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually bridged
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/07—Long chain branching
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2314/00—Polymer mixtures characterised by way of preparation
- C08L2314/02—Ziegler natta catalyst
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2314/00—Polymer mixtures characterised by way of preparation
- C08L2314/06—Metallocene or single site catalysts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/943—Polymerization with metallocene catalysts
Abstract
A polymerization process comprises contacting one or more olefinic comonomers in the presence of at least a high molecular weight catalyst and at least a low molecular weight catalyst in a single reactor; and effectuating the polymerization of the olefinic comonomers in the reactor to obtain an olefin polymer. Preferably, both catalysts have the ability to incorporate a substantially similar amount of comonomers in the olefin polymer. The polymers produced by the process may have a relatively higher level of long chain branching while maintaining a relatively narrow molecular weight distribution, i.e., MWD less than about 6. These interpolymers may exhibit processability similar to or better than LDPE but have physical properties similar to metallocene catalyzed polymers.
Claims (55)
1. A process of making an olefin polymer, comprising:
contacting one or more olefinic monomers in the presence of at least a high molecular weight catalyst and at least a low molecular weight catalyst in a single reactor;
and effectuating the polymerization of the olefinic monomers in the reactor under polymerization conditions to obtain an olefin polymer, wherein the high molecular weight catalyst and the low molecular weight catalyst each include a compound of the formula:
wherein: M is a metal of group 3, 4-10, or the lanthanide series of the periodic table of the elements; Cp* is a cyclopentadienyl or substituted cyclopentadienyl group Z
is a moiety comprising boron, a member of group 14 of the periodic table of the elements, or sulfur or oxygen, and having ups to 40 non-hydrogen atoms, and optionally Cp* and Z together form a fused ring system; X independently each occurrence is an anionic ligand group, said X having up to 30 non-hydrogen atoms; n is 2 less than the valence of M when Y is anionic, or 1 less than the valence of M when Y is neutral; L
independently each occurrence is a neutral Lewis base ligand group, said L
having up to 30 non-hydrogen atoms; m is 0,1,2,3, or 4; and Y is an anionic or neutral ligand group bonded to Z and M comprising nitrogen, phosphorus, oxygen or sulfur and having up to 40 non-hydrogen atoms, optionally Y and Z together form a fused ring system;
wherein the high molecular weight catalyst and the low molecular weight catalyst incorporate a similar amount of comonomers in the polymer under the polymerization conditions, and wherein the high molecular weight catalyst produces a polymer with a high molecular weight M w H from the monomers under the polymerization conditions, and the low molecular weight catalyst produces a polymer with a low molecular weight M
w I, from the same monomers under polymerization conditions, where M w H/M w I, is greater than about 4Ø
The process of claim 1, wherein the high molecular weight catalyst has a reactivity ratio r~ and the low molecular weight catalyst has a reactivity ratio r~; r~ is 18 or less.
contacting one or more olefinic monomers in the presence of at least a high molecular weight catalyst and at least a low molecular weight catalyst in a single reactor;
and effectuating the polymerization of the olefinic monomers in the reactor under polymerization conditions to obtain an olefin polymer, wherein the high molecular weight catalyst and the low molecular weight catalyst each include a compound of the formula:
wherein: M is a metal of group 3, 4-10, or the lanthanide series of the periodic table of the elements; Cp* is a cyclopentadienyl or substituted cyclopentadienyl group Z
is a moiety comprising boron, a member of group 14 of the periodic table of the elements, or sulfur or oxygen, and having ups to 40 non-hydrogen atoms, and optionally Cp* and Z together form a fused ring system; X independently each occurrence is an anionic ligand group, said X having up to 30 non-hydrogen atoms; n is 2 less than the valence of M when Y is anionic, or 1 less than the valence of M when Y is neutral; L
independently each occurrence is a neutral Lewis base ligand group, said L
having up to 30 non-hydrogen atoms; m is 0,1,2,3, or 4; and Y is an anionic or neutral ligand group bonded to Z and M comprising nitrogen, phosphorus, oxygen or sulfur and having up to 40 non-hydrogen atoms, optionally Y and Z together form a fused ring system;
wherein the high molecular weight catalyst and the low molecular weight catalyst incorporate a similar amount of comonomers in the polymer under the polymerization conditions, and wherein the high molecular weight catalyst produces a polymer with a high molecular weight M w H from the monomers under the polymerization conditions, and the low molecular weight catalyst produces a polymer with a low molecular weight M
w I, from the same monomers under polymerization conditions, where M w H/M w I, is greater than about 4Ø
The process of claim 1, wherein the high molecular weight catalyst has a reactivity ratio r~ and the low molecular weight catalyst has a reactivity ratio r~; r~ is 18 or less.
2. The process of claim 1, wherein the olefin polymer is characterized by a R
v as defined in the following:
~
wherein [vinyl] is the concentration of vinyl groups in the olefin polymer expressed in vinyls/1,000 carbon atoms; [vinylidene], [cis] and [trans] are the concentration of vinylidene, cis and trans groups in the olefin polymer expressed in the number of the respective groups per 1,000 carbon atoms, wherein R v is 0.12 or higher.
v as defined in the following:
~
wherein [vinyl] is the concentration of vinyl groups in the olefin polymer expressed in vinyls/1,000 carbon atoms; [vinylidene], [cis] and [trans] are the concentration of vinylidene, cis and trans groups in the olefin polymer expressed in the number of the respective groups per 1,000 carbon atoms, wherein R v is 0.12 or higher.
3. The process of claim 0, wherein r~/r,~, is between 0.2 to 5.
4. The process of claim 0, wherein r~/r~ is between 0.3 to 3.3.
5. The process of claim 0, wherein r~/r~ is between 0.4 to 2.5
6. The process of claim 0, wherein r~/r~ is between 0.5 to 2Ø
7. The process of claim 0, wherein r~/r~ is between 0.6 to 1.7.
8. The process of claim 0, wherein r~/r~ is between 0.7 to 1.4.
9. The process of claim 0, wherein r~/r~ is between 0.8 to 1.3.
10. The process of claim 0, wherein r~/r~ is between 0.9 to 1.1.
11. The process of claim 0, wherein r~/r~ is substantially equal to one.
12. The process of claim 1, wherein the high molecular weight catalyst is characterized by R~, the low molecular weight catalyst is characterized by R~, wherein R, for each catalyst is defined is defined by the following equation in terms of a polymer produced by the catalyst, when used alone:
wherein [vinyl] is the concentration of vinyl groups in the polymer expressed in vinyls/1,000 carbon atoms; [vinylidene], [cis] and [trans] are the concentration of vinylidene, cis and trans groups in the polymer expressed in the number of the respective groups per 1,000 carbon atoms.
wherein [vinyl] is the concentration of vinyl groups in the polymer expressed in vinyls/1,000 carbon atoms; [vinylidene], [cis] and [trans] are the concentration of vinylidene, cis and trans groups in the polymer expressed in the number of the respective groups per 1,000 carbon atoms.
13. The process of claim 12, wherein R~ is 0.12 or higher, and R~ is 0.08 or less.
14. The process of claim 12, wherein R~ is 0.12 or higher, and R~ is 0.08 or higher.
15. The process of claim 12, wherein R~ is 0.08 or less, and R~ is 0.12 or higher.
16. The process of claim 12, wherein R~ is 0.08 or less, and R ~ is 0.12 or less.
17. The process of claim 1, wherein the process is a continuous solution process, and the olefin polymer has a steady state concentration of 15% or more by weight of the reactor content.
18. The process of claim 17, wherein the olefin polymer comprises ethylene with a steady-state concentration 3.5% or less by weight of the reactor content.
19. The process of claim 1, wherein the M w H/M w L is between 4.0 and 40.
20. The process of claim 1, wherein the M w H/M w L is between 4.0 and 8.5.
21. The process of claim 1, wherein the M w H/M w L, is between 4.0 and 7Ø
22. The process of claim 1, wherein the M w H/M w L is between 4.0 and 6Ø
23. The process of claim 1, wherein one of the catalysts is (N-1,1-dimethylethyl)-1,1-(4-methylphenyl)-1-((1,2,3,3a,7a-n)-3-(1,3-dihydro-2H-isoindol-2-yl)-1H-inden-1-yl)silanaminato-(2-)-N-)dimethyltitanium.
24. The process of claim 1, wherein one of the catalysts (N-1,1-dimethylethyl)-1,1-(4-butylphenyl)-1-((1,2,3,3a,7a-n)-3-(l,3-dihydro-2H-isoindol-2-yl)-1H-inden-1-yl)silanaminato-(2-)-N-)dimethyltitanium.
25. The process of claim 1, wherein one of the catalysts is (C5Me4SiMe2N1Bu)Ti(.eta.4-1,3-pentadiene).
26. The process of claim 1, wherein the high molecular weight catalyst is (N-1,1-dimethylethyl)-1,1-(4-butylphenyl)-1-((1,2,3,3a,7a-n)-3-(1,3-dihydro-2H-isoindol-2-y1)-1H-inden-1-yl)silanaminato-(2-)-N-)dimethyltitanium.
27. The process of claim 1, wherein the high molecular weight catalyst is (N-1,1-dimethylethyl)-1,1-(4-methylphenyl)-1-((1,2,3,3a,7a-n)-3-(1,3-dihydro-2H-isoindol-2-yl)-1H-inden-1-yl)silanaminato-(2-)-N-)dimethyltitanium.
28. The process of claim 1, wherein the low molecular weight catalyst is (C5Me4SiMe2N1Bu)Ti(.eta.4-1,3-pentadiene).
29. The process of claim 1, wherein the olefinic monomers are selected from ethylene, propylene, 1-butene, 1-hexene, 1-octene, 1-decene, vinyl-cyclohexene, styrene, ethylidene norbornene, norbornadiene, 1.5-hexadiene, 1,7-octadiene, and 1,9-decadiene.
30. The olefin polymer of claim 1, wherein the olefin polymer has a comb-like structure.
31. The process of claim 1, wherein the olefin polymer is a homopolymer.
32. The process of claim 31, wherein the olefin monomer is propylene, 1-butene, 1-hexene, 1-octene, 1-decene, vinyl-cyclohexene, styrene, ethylidene norbornene, norbornadiene, 1.5-hexadiene, 1,7-octadiene, and 1,9-decadiene.
33. The process of claim 31, wherein the homopolymer is polypropylene, polybutene, or polystyrene.
34. The process of claim 31, wherein the homopolymer has 3 long chain branches per carbons.
35. An polyethylene polymer having a melt strength of about 5 cN at 190°C., and when the polymer is made into a film, the film has a CD shrink of at least 20%.
36. The polymer of claim 35 characterised by a comb-like structure and having at least 0.03 long chain branches per 1000 carbons.
37. The olefin polymer of claim 35 or 36, wherein the polymer includes a high molecular weight fraction and a low molecular weight fraction.
38. The olefin polymer of claim 37, wherein the high molecular weight fraction is from 0 to 100.
39. The olefin polymer of claim 37, wherein the low molecular weight fraction is from 0 to 100.
40. The olefin polymer of claim 35 or 36, wherein the polymer is an ethylene/propylene copolymer, ethylene/1-butene copolymer, ethylene/1-hexene, ethylene/styrene, ethylene/1-octene copolymers, or ethylene/propylene/diene terpolymer.
41. A process for producing a C2-20 olefin homopolymer or interpolymer, comprising:
continuously feeding one or more C2-20 olefins into the reactor;
continuously feeding the low molecular weight catalyst into the reactor at a fixed rate;
continuously feeding the high molecular weight catalyst into the reactor under polymerization conditions, wherein the low molecular weight catalyst and the high molecular weight catalyst incorporate similar amount of comonomer in the polymer and the ratio of the molecular weight of the polymer produced by the high molecular weight catalyst to the molecular weight of the polymer produced by the low molecular weight catalyst, M wH/M wL in the range from 4.0 to 40; and recovering the polymer product.
continuously feeding one or more C2-20 olefins into the reactor;
continuously feeding the low molecular weight catalyst into the reactor at a fixed rate;
continuously feeding the high molecular weight catalyst into the reactor under polymerization conditions, wherein the low molecular weight catalyst and the high molecular weight catalyst incorporate similar amount of comonomer in the polymer and the ratio of the molecular weight of the polymer produced by the high molecular weight catalyst to the molecular weight of the polymer produced by the low molecular weight catalyst, M wH/M wL in the range from 4.0 to 40; and recovering the polymer product.
42. The process of claim 41, wherein continuously feeding the low molecular weight catalyst into the reactor comprises feeding the low molecular weight at a first rate to produce with a melt index equal to or greater than about two times a target melt index; and continuously feeding the high molecular weight catalyst into the reactor comprises feeding the high molecular weight catalyst at a second rate to adjust the melt index of the polymer to produce a polymer product with the target melt index.
43. The process of claim 41, wherein the first reactor is connected to the second reactor in parallel so that the mixing occurs in a third reactor.
44. The process of claim 41, wherein the first reactor is connected to the second reactor in series.
45. The process of claim 44, wherein the first-reactor contents are sequentially introduced into the second reactor.
46. The process of claim 41, wherein the first reactor is operated under continuous solution polymerization conditions.
47. The process of claim 41, wherein the second reactor is operated under continuous solution polymerization conditions.
48. The process of claim 41, wherein at least one of the catalysts is a single site catalysts having an R v greater than about 0.12.
49. The process of Claim 47, wherein the ethylene has a steady state concentration of about 3.5% or less by weight of the first-reactor contents.
50. The process of claim 47, wherein the first reactor has a polymer with a steady state concentration of about 15% or more by weight of the first-reactor contents.
51. The process of claim 41, wherein M wH/M wL is between 4.0 and 10.
52. The process of claim 41, wherein the ethylene concentration is 2.5% or less by weight of the reactor content.
53. The process of claim 41, wherein the ethylene concentration is 2.0% or less by weight of the reactor content.
54. The process of claim 47, wherein the ethylene polymer concentration is 18%
or more by weight of the reactor content.
or more by weight of the reactor content.
55. The process of claim 47, wherein the ethylene polymer concentration is 20%
or more by weight of the reactor content.
or more by weight of the reactor content.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27671901P | 2001-03-16 | 2001-03-16 | |
US60/276,719 | 2001-03-16 | ||
PCT/US2002/008121 WO2002074817A2 (en) | 2001-03-16 | 2002-03-15 | Method of making interpolymers and products made therefrom |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2441028A1 true CA2441028A1 (en) | 2002-09-26 |
CA2441028C CA2441028C (en) | 2010-12-07 |
Family
ID=23057813
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2441028A Expired - Lifetime CA2441028C (en) | 2001-03-16 | 2002-03-15 | Method of making interpolymers and products made therefrom |
CA2441262A Expired - Lifetime CA2441262C (en) | 2001-03-16 | 2002-03-15 | High melt strength polymers and method of making same |
CA2797698A Expired - Lifetime CA2797698C (en) | 2001-03-16 | 2002-03-15 | High melt strength polymers and method of making same |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2441262A Expired - Lifetime CA2441262C (en) | 2001-03-16 | 2002-03-15 | High melt strength polymers and method of making same |
CA2797698A Expired - Lifetime CA2797698C (en) | 2001-03-16 | 2002-03-15 | High melt strength polymers and method of making same |
Country Status (16)
Country | Link |
---|---|
US (8) | US6875816B2 (en) |
EP (2) | EP1377613B1 (en) |
JP (5) | JP4249984B2 (en) |
KR (4) | KR100880097B1 (en) |
CN (4) | CN100519588C (en) |
AR (2) | AR033003A1 (en) |
AU (3) | AU2002258526B2 (en) |
BR (2) | BR0208486A (en) |
CA (3) | CA2441028C (en) |
CZ (2) | CZ20032816A3 (en) |
ES (2) | ES2742501T3 (en) |
MX (2) | MXPA03008322A (en) |
MY (2) | MY137183A (en) |
NO (2) | NO20034078L (en) |
PL (2) | PL368551A1 (en) |
WO (2) | WO2002074816A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007068083A1 (en) * | 2005-12-13 | 2007-06-21 | Nova Chemicals (International) S.A. | On the fly catalyst transitions |
Families Citing this family (130)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6576583B1 (en) | 2000-02-11 | 2003-06-10 | Phillips Petroleum Company | Organometal catalyst composition |
MY137183A (en) * | 2001-03-16 | 2009-01-30 | Dow Global Technologies Inc | Method of making interpolymers and products made therefrom |
US6946531B2 (en) | 2001-05-14 | 2005-09-20 | Dow Global Technologies Inc. | Low molecular weight ethylene interpolymers and polymerization process |
US7416698B2 (en) * | 2002-05-15 | 2008-08-26 | Dow Global Technologies Inc. | Molecular topological fractionation of macromolecules |
AU2003299143A1 (en) * | 2002-10-02 | 2004-04-23 | Dow Global Technologies Inc. | Liquid and gel-like low molecular weight ethylene polymers |
US8618219B2 (en) | 2002-10-15 | 2013-12-31 | Exxonmobil Chemical Patents Inc. | Propylene copolymers for adhesive applications |
US7700707B2 (en) | 2002-10-15 | 2010-04-20 | Exxonmobil Chemical Patents Inc. | Polyolefin adhesive compositions and articles made therefrom |
US7550528B2 (en) | 2002-10-15 | 2009-06-23 | Exxonmobil Chemical Patents Inc. | Functionalized olefin polymers |
WO2004046214A2 (en) | 2002-10-15 | 2004-06-03 | Exxonmobil Chemical Patents Inc. | Multiple catalyst system for olefin polymerization and polymers produced therefrom |
US8653169B2 (en) | 2002-10-15 | 2014-02-18 | Exxonmobil Chemical Patents Inc. | Propylene copolymers for adhesive applications |
MXPA05007662A (en) | 2003-01-16 | 2006-03-10 | Ian Orde Michael Jacobs | Methods, compositions and blends for forming articles having improved environmental stress crack resistance. |
US6967228B2 (en) * | 2003-05-01 | 2005-11-22 | Firestone Polymers, Llc | Stable free radical polymers |
US20040220345A1 (en) * | 2003-05-01 | 2004-11-04 | Firestone Polymers, Llc | Stable free radical polymers |
JP5237553B2 (en) | 2003-08-19 | 2013-07-17 | ダウ グローバル テクノロジーズ エルエルシー | Interpolymers suitable for use in hot melt adhesives and methods for their production |
BRPI0413766B1 (en) | 2003-09-05 | 2014-01-28 | Polyethylene extrusion composition, use of a composition, process for extruding a polymeric material onto a substrate and polymeric film layer | |
US7483864B2 (en) * | 2003-11-17 | 2009-01-27 | Nec Corporation | Active learning method and system |
US7355089B2 (en) * | 2004-03-17 | 2008-04-08 | Dow Global Technologies Inc. | Compositions of ethylene/α-olefin multi-block interpolymer for elastic films and laminates |
US7803728B2 (en) * | 2004-03-17 | 2010-09-28 | Dow Global Technologies Inc. | Fibers made from copolymers of ethylene/α-olefins |
US7504347B2 (en) * | 2004-03-17 | 2009-03-17 | Dow Global Technologies Inc. | Fibers made from copolymers of propylene/α-olefins |
CN1976965B (en) * | 2004-03-17 | 2012-10-10 | 陶氏环球技术有限责任公司 | Catalyst composition comprising shuttling agent for ethylene multi-block copolymer formation |
EP2221328B1 (en) * | 2004-03-17 | 2017-04-19 | Dow Global Technologies LLC | Catalyst composition comprising shuttling agent for ethylene multi-block copolymer formation |
CN1954005B (en) * | 2004-03-17 | 2012-10-10 | 陶氏环球技术有限责任公司 | Catalyst composition comprising shuttling agent for ethylene multi-block copolymer formation |
US7582716B2 (en) * | 2004-03-17 | 2009-09-01 | Dow Global Technologies Inc. | Compositions of ethylene/α-olefin multi-block interpolymer for blown films with high hot tack |
US8816006B2 (en) | 2004-03-17 | 2014-08-26 | Dow Global Technologies Llc | Compositions of ethylene/α-olefin multi-block interpolymer suitable for films |
MXPA06010713A (en) | 2004-03-19 | 2006-12-15 | Dow Global Technologies Inc | Film layers made from polymer formulations. |
EP1763542B1 (en) * | 2004-06-16 | 2011-04-06 | Dow Global Technologies Inc. | Technique for selecting polymerization modifiers |
JP4765277B2 (en) * | 2004-07-30 | 2011-09-07 | 東ソー株式会社 | Laminated body |
EP1802699B1 (en) | 2004-10-13 | 2011-07-27 | ExxonMobil Chemical Patents Inc. | Elastomeric reactor blend compositions |
CA2591662C (en) | 2004-12-17 | 2014-01-28 | Dow Global Technologies Inc. | Rheology modified relatively high melt strength polyethlene compositions and methods of making pipes, films, sheets, and blow molded articles |
NZ561541A (en) * | 2005-03-17 | 2011-02-25 | Dow Global Technologies Inc | Compositions of ethylene/alpha-olefin multi-block interpolymer suitable for films |
EP1858946B1 (en) * | 2005-03-17 | 2018-04-25 | Dow Global Technologies LLC | Compositions of ethylene/alpha-olefin multi-block interpolymer for blown films with high hot tack |
US9410009B2 (en) | 2005-03-17 | 2016-08-09 | Dow Global Technologies Llc | Catalyst composition comprising shuttling agent for tactic/ atactic multi-block copolymer formation |
MX2007011347A (en) * | 2005-03-17 | 2007-10-03 | Dow Global Technologies Inc | Fibers made from copolymers of propylene/alpha-olefins. |
BRPI0609835A2 (en) * | 2005-03-17 | 2010-05-04 | Dow Global Technologies Inc | copolymer, process for preparing a multiblock copolymer, multiblock copolymer, functionalized derivative, homogeneous polymer blend, and polymer |
RU2007138504A (en) * | 2005-03-17 | 2009-04-27 | Дау Глобал Текнолоджиз Инк. (Us) | CATALYST COMPOSITION CONTAINING A SHUTTLE KINETIC TRANSFER AGENT INTENDED FOR OBTAINING A REGIONAL REGULAR MULTI-BLOCK COPOLYMER |
US7947367B2 (en) * | 2005-03-17 | 2011-05-24 | Dow Global Technologies Llc | Fibers made from copolymers of ethylene/α-olefins |
DE102005017200A1 (en) * | 2005-04-13 | 2006-10-19 | Degussa Ag | Use of a high-viscosity, largely amorphous polyolefin for producing a film |
US7279527B2 (en) * | 2005-04-22 | 2007-10-09 | Bridgestone Corporation | Method of converting anionic living end to protected free radical living end and applications thereof |
US7538173B2 (en) * | 2005-11-21 | 2009-05-26 | Equistar Chemicals Lp | Polyolefin compositions |
US7611652B2 (en) * | 2005-11-22 | 2009-11-03 | Shaw Industries Group, Inc. | Monoxially-oriented and annealed films with high cross machine toughness and related process |
US8034878B2 (en) * | 2005-12-29 | 2011-10-11 | Dow Global Technologies Llc | Low molecular weight ethylene interpolymers, methods of making, and uses thereof |
US20070203299A1 (en) * | 2006-02-27 | 2007-08-30 | Novolen Technology Holdings C.V. | High melt strength polypropylene |
KR101384380B1 (en) | 2006-05-17 | 2014-04-10 | 다우 글로벌 테크놀로지스 엘엘씨 | Polypropylene solution polymerization process |
JP4506740B2 (en) * | 2006-09-14 | 2010-07-21 | トヨタ自動車株式会社 | Catalyst structure for fuel cell, membrane electrode assembly, fuel cell, and method for producing catalyst structure for fuel cell |
US7396887B1 (en) * | 2006-12-29 | 2008-07-08 | Bridgestone Corporation | Insitu removal of chelator from anionic polymerization reactions |
US7737218B2 (en) * | 2006-12-29 | 2010-06-15 | Bridgestone Corporation | Method for generating free radical capable polymers using tin or silicon halide compounds |
US7560509B2 (en) * | 2006-12-29 | 2009-07-14 | Bridgestone Corporation | Method of directing grafting by controlling the location of high vinyl segments in a polymer |
US8030410B2 (en) * | 2006-12-29 | 2011-10-04 | Bridgestone Corporation | Method for generating free radical capable polymers using carbonyl-containing compounds |
US20080157641A1 (en) * | 2006-12-31 | 2008-07-03 | Rachael Wren Grout | Multi-use Free Standing Seating and Storage Unit |
EP2028218A1 (en) * | 2007-08-24 | 2009-02-25 | Total Petrochemicals Research Feluy | Reinforced and conductive resin compositions comprising polyolefins and poly(hydroxy carboxylic acid) |
EP2030994A1 (en) * | 2007-09-03 | 2009-03-04 | INEOS Manufacturing Belgium NV | Slurry phase polymerisation process |
EP2799235A1 (en) * | 2007-10-22 | 2014-11-05 | Dow Global Technologies LLC | Multilayer films |
EP2212359B1 (en) * | 2007-11-19 | 2013-08-28 | Dow Global Technologies LLC | Long chain branched propylene-alpha-olefin copolymers |
US20090163666A1 (en) * | 2007-12-21 | 2009-06-25 | David John Lohse | Polymer compositions exhibiting enhanced flow-induced crystallization |
EP2260135A2 (en) * | 2008-02-29 | 2010-12-15 | Dow Global Technologies Inc. | Fibers and fabrics made from ethylene/ -olefin interpolymers |
TWI445751B (en) * | 2008-07-16 | 2014-07-21 | Univation Tech Llc | Polyethylene compositions |
US20110209897A1 (en) * | 2008-11-21 | 2011-09-01 | David Denton | Olefin-Based Polymers, a Process for Making the Same, and a Medium Voltage Cable Sheath Comprising the Same |
US20110003940A1 (en) | 2009-07-01 | 2011-01-06 | Dow Global Technologies Inc. | Ethylene-based polymer compositions for use as a blend component in shrinkage film applications |
US8629214B2 (en) | 2009-07-01 | 2014-01-14 | Dow Global Technologies Llc. | Ethylene-based polymer compositions for use as a blend component in shrinkage film applications |
WO2011025587A1 (en) * | 2009-08-27 | 2011-03-03 | Exxonmobil Chemical Patents Inc. | Polyolefin adhesive compositions and method of making thereof |
BR112012005109A2 (en) * | 2009-09-14 | 2023-04-25 | Dow Global Technologies Llc | POLYMER COMPRISING ETHYLENE AND POLYKYLENE DERIVATIVE UNITS, COMPOSITION AND ARTICLE |
US8679639B2 (en) * | 2009-11-24 | 2014-03-25 | Dow Global Technologies Llc | Extrusion coating composition |
EP2348057A1 (en) * | 2010-01-21 | 2011-07-27 | INEOS Manufacturing Belgium NV | Novel polymers |
US8609794B2 (en) | 2010-05-17 | 2013-12-17 | Dow Global Technologies, Llc. | Process for selectively polymerizing ethylene and catalyst therefor |
EP2580279B1 (en) | 2010-06-14 | 2019-01-09 | Dow Global Technologies LLC | Ethylene-based polymer compositions for use as a blend component in shrinkage film applications |
KR20180066258A (en) | 2010-08-25 | 2018-06-18 | 다우 글로벌 테크놀로지스 엘엘씨 | Process for polymerizing a polymerizable olefin and catalyst therefor |
WO2012061706A1 (en) | 2010-11-04 | 2012-05-10 | Dow Global Technologies Llc | Double shuttling of polyolefin polymeryl chains |
CA2828545C (en) | 2011-03-28 | 2019-11-19 | Dow Global Technologies Llc | Process to produce enhanced melt strength ethylene/.alpha.-olefin copolymers and articles thereof |
CN103781806B (en) * | 2011-07-05 | 2017-06-23 | 陶氏环球技术有限责任公司 | Method of the polymer with it is prepared based on ethene |
JP2013053308A (en) * | 2011-08-11 | 2013-03-21 | Sumitomo Chemical Co Ltd | Olefin polymer producing method, ethylene polymer and mold product |
EP2797962B1 (en) | 2011-12-29 | 2015-11-18 | Dow Global Technologies LLC | Process for producing low molecular weight ethylene- and alpha-olefin-based materials |
EP2797963B1 (en) | 2011-12-29 | 2019-07-03 | Dow Global Technologies LLC | Hyperbranched olefin oil-based dielectric fluid |
WO2013101648A1 (en) | 2011-12-31 | 2013-07-04 | Bridgestone Corporation | Functionalized polymer |
US9115237B2 (en) | 2012-07-18 | 2015-08-25 | Chevron Oronite Company Llc | Viscosity improver grafted with unsaturated acylating agent and an aryloxyalylkene monoamine |
US9382349B2 (en) * | 2012-08-03 | 2016-07-05 | Exxonmobil Chemical Patents Inc. | Polyalphaolefins prepared using modified Salan catalyst compounds |
CN104379680B (en) * | 2012-08-03 | 2017-11-28 | 埃克森美孚化学专利公司 | The polyolefin of ethenyl blocking with long chain branching |
EP2880096B1 (en) * | 2012-08-03 | 2018-01-03 | ExxonMobil Chemical Patents Inc. | Process for preparing polyalphaolefins using modified salan catalyst compounds and polyalphaolefins prepared therewith |
CN104781319B (en) | 2012-11-07 | 2018-04-10 | 切弗朗菲利浦化学公司 | Low density polyolefin resin and the film from its manufacture |
JP2016518289A (en) | 2013-03-14 | 2016-06-23 | ベリー プラスチックス コーポレイション | container |
JP6326202B2 (en) * | 2013-05-16 | 2018-05-16 | 三井化学株式会社 | Solid catalyst component for olefin polymerization and process for producing olefin polymer using the same |
KR20200120756A (en) * | 2013-05-22 | 2020-10-21 | 다우 글로벌 테크놀로지스 엘엘씨 | Compositions containing low density ethylene-based polymers with high melt strength and films formed from the same |
JP2014234403A (en) * | 2013-05-31 | 2014-12-15 | 東ソー株式会社 | Polyethylene resin composition and blow-molded body comprising the same |
JP2014234404A (en) * | 2013-05-31 | 2014-12-15 | 東ソー株式会社 | Polyolefin-based coated electric wire |
EP2813517B2 (en) | 2013-06-10 | 2019-06-26 | Borealis AG | Process for the preparation of a propylene polymer |
US10208193B2 (en) | 2013-06-24 | 2019-02-19 | Dow Global Technologies Llc | Reinforced polypropylene composition |
EP3019552A4 (en) * | 2013-07-12 | 2017-02-22 | Berry Plastics Corp. | Polymeric material for container |
TW201532782A (en) | 2013-08-30 | 2015-09-01 | Berry Plastics Corp | Container and process for making the same |
US9181370B2 (en) | 2013-11-06 | 2015-11-10 | Chevron Phillips Chemical Company Lp | Low density polyolefin resins with low molecular weight and high molecular weight components, and films made therefrom |
US9163098B2 (en) | 2014-01-10 | 2015-10-20 | Chevron Phillips Chemical Company Lp | Processes for preparing metallocene-based catalyst systems |
US9169337B2 (en) | 2014-03-12 | 2015-10-27 | Chevron Phillips Chemical Company Lp | Polymers with improved ESCR for blow molding applications |
US9273170B2 (en) | 2014-03-12 | 2016-03-01 | Chevron Phillips Chemical Company Lp | Polymers with improved toughness and ESCR for large-part blow molding applications |
CN106103507B (en) | 2014-03-21 | 2019-04-05 | 埃克森美孚化学专利公司 | The preparation method of ethylene propylene copolymer |
US9079993B1 (en) * | 2014-05-22 | 2015-07-14 | Chevron Phillips Chemical Company Lp | High clarity low haze compositions |
US10072110B2 (en) | 2014-06-10 | 2018-09-11 | Lg Chem, Ltd. | Propylene-based elastomer |
JP5743010B1 (en) * | 2014-06-20 | 2015-07-01 | 富士ゼロックス株式会社 | Image forming apparatus, coating apparatus, coating agent, and conveying apparatus |
EP3161066B1 (en) | 2014-06-24 | 2020-11-18 | Basell Polyolefine GmbH | Polyethylene composition for injection moulding |
US9284389B2 (en) | 2014-07-29 | 2016-03-15 | Chevron Phillips Chemical Company Lp | Bimodal resins having good film processability |
EP3209722A2 (en) | 2014-10-21 | 2017-08-30 | Nova Chemicals (International) S.A. | Ethylene interpolymer product with dilution index |
CA2868640C (en) | 2014-10-21 | 2021-10-26 | Nova Chemicals Corporation | Solution polymerization process |
US9937652B2 (en) | 2015-03-04 | 2018-04-10 | Berry Plastics Corporation | Polymeric material for container |
JP6547484B2 (en) * | 2015-07-22 | 2019-07-24 | 日本ポリエチレン株式会社 | Method for producing ethylene-based polymer having unsaturated bond |
US9493589B1 (en) | 2015-09-09 | 2016-11-15 | Chevron Phillips Chemical Company Lp | Polymers with improved ESCR for blow molding applications |
US9650459B2 (en) | 2015-09-09 | 2017-05-16 | Chevron Phillips Chemical Company Lp | Methods for controlling die swell in dual catalyst olefin polymerization systems |
CA2914166C (en) * | 2015-12-08 | 2022-07-26 | Nova Chemicals Corporation | High density rotomolding resin |
CN108431053B (en) * | 2015-12-31 | 2021-03-30 | 韩华化学株式会社 | Composite metallocene supported catalyst, method for producing olefin polymer using the same, and olefin polymer having improved melt strength |
KR20180104064A (en) | 2016-01-22 | 2018-09-19 | 셰브런 오로나이트 컴퍼니 엘엘씨 | A synergistic lubricant composition comprising an olefin copolymer dispersant-type viscosity enhancer and a mixture of amine compounds |
WO2017165009A1 (en) * | 2016-03-23 | 2017-09-28 | Exxonmobil Chemical Patents, Inc. | Comb-block high density polyethylenes and methods of making them |
US20200291154A1 (en) * | 2016-03-25 | 2020-09-17 | Zeena CHERIAN | Enhanced melt strength acrylic formulation |
WO2017216096A1 (en) * | 2016-06-17 | 2017-12-21 | Borealis Ag | Bi- or multimodal polyethylene with low unsaturation level |
WO2018013283A2 (en) | 2016-07-13 | 2018-01-18 | Exxonmobil Chemical Patents Inc. | Dual metallocene catalyst copolymer compositions |
US10808049B2 (en) | 2016-07-13 | 2020-10-20 | Exxonmobil Chemical Patents Inc. | Dual metallocene catalyst copolymer compositions |
US11299567B2 (en) | 2016-07-14 | 2022-04-12 | Exxonmobil Chemical Patents Inc. | Lubricating oil compositions comprising dual metallocene-catalyzed bimodal copolymer compositions useful as viscosity modifiers |
WO2018022588A1 (en) * | 2016-07-29 | 2018-02-01 | Dow Global Technologies Llc | Mixed catalyst systems for producing multimodal elastomers |
KR101846412B1 (en) * | 2016-12-06 | 2018-05-18 | 한화케미칼 주식회사 | Transition metal compound used to prepare catalyst for polymerizing olefin, catalyst for polymerizing olefin comprising the same and polyolefin polymerized by using the same |
US10329412B2 (en) | 2017-02-16 | 2019-06-25 | Nova Chemicals (International) S.A. | Caps and closures |
US11193008B2 (en) * | 2017-04-10 | 2021-12-07 | Exxonmobil Chemical Patents Inc. | Methods for making polyolefin polymer compositions |
US10442920B2 (en) | 2017-04-19 | 2019-10-15 | Nova Chemicals (International) S.A. | Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing homogeneous and heterogeneous catalyst formulations |
US10442921B2 (en) * | 2017-04-19 | 2019-10-15 | Nova Chemicals (International) S.A. | Means for increasing the molecular weight and decreasing the density employing mixed homogeneous catalyst formulations |
WO2018231224A1 (en) | 2017-06-14 | 2018-12-20 | Exxonmobil Chemical Patents Inc. | Ethylene copolymer blends for cross-linking applications |
US10683376B2 (en) | 2017-11-07 | 2020-06-16 | Nova Chemicals (International) S.A. | Manufacturing ethylene interpolymer products at higher production rate |
US10995166B2 (en) | 2017-11-07 | 2021-05-04 | Nova Chemicals (International) S.A. | Ethylene interpolymer products and films |
US10590213B2 (en) | 2018-03-13 | 2020-03-17 | Chevron Phillips Chemical Company Lp | Bimodal polyethylene resins and pipes produced therefrom |
JP7216184B2 (en) * | 2018-07-23 | 2023-01-31 | エクソンモービル・ケミカル・パテンツ・インク | Preparation of bimodal rubber, thermoplastic vulcanizates and articles made therefrom |
US10882987B2 (en) | 2019-01-09 | 2021-01-05 | Nova Chemicals (International) S.A. | Ethylene interpolymer products having intermediate branching |
CN110156606A (en) * | 2019-05-31 | 2019-08-23 | 镇江巨杰新材料技术研发中心(有限合伙) | The synthetic method and application of a kind of N, N- bis- (octadecyl) aniline |
KR102203007B1 (en) * | 2019-06-05 | 2021-01-14 | 대림산업 주식회사 | Method for manufacturing multimodal polyolefins using multistage continuous polymerization process |
US11046843B2 (en) | 2019-07-29 | 2021-06-29 | Nova Chemicals (International) S.A. | Ethylene copolymers and films with excellent sealing properties |
WO2021022011A1 (en) * | 2019-07-31 | 2021-02-04 | Dow Global Technologies Llc | Polymerization catalysts for production of polyethylene with high molecular weight |
WO2023130032A1 (en) * | 2021-12-30 | 2023-07-06 | Dow Global Technologies Llc | Multimodal ethylene-based copolymer compositions and processes of producing |
CN115029810B (en) * | 2022-06-17 | 2023-08-01 | 上海化工研究院有限公司 | High-performance polyethylene heavy denier monofilament for wind wave resistant fishery rope net and preparation method thereof |
Family Cites Families (78)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US600941A (en) * | 1898-03-22 | Magnetic-clutch and power-station system | ||
CA980498A (en) * | 1971-04-16 | 1975-12-23 | Du Pont Of Canada Limited | Ethylene polymers with long chain branching |
US4532052A (en) * | 1978-09-28 | 1985-07-30 | Halliburton Company | Polymeric well treating method |
US4438238A (en) * | 1981-01-30 | 1984-03-20 | Sumitomo Chemical Company, Limited | Low density copolymer composition of two ethylene-α-olefin copolymers |
US4500648A (en) * | 1983-04-25 | 1985-02-19 | Exxon Research & Engineering Co. | Long chain branching in polyolefins from ziegler-natta catalysts |
US4851489A (en) * | 1983-04-25 | 1989-07-25 | Exxon Research & Engineering Company | Long chain branching in polyolefins from Ziegler-Natta catalysts |
US4530914A (en) * | 1983-06-06 | 1985-07-23 | Exxon Research & Engineering Co. | Process and catalyst for producing polyethylene having a broad molecular weight distribution |
US4935474A (en) * | 1983-06-06 | 1990-06-19 | Exxon Research & Engineering Company | Process and catalyst for producing polyethylene having a broad molecular weight distribution |
US5324800A (en) * | 1983-06-06 | 1994-06-28 | Exxon Chemical Patents Inc. | Process and catalyst for polyolefin density and molecular weight control |
US4937299A (en) * | 1983-06-06 | 1990-06-26 | Exxon Research & Engineering Company | Process and catalyst for producing reactor blend polyolefins |
US4789714A (en) * | 1983-06-15 | 1988-12-06 | Exxon Research & Engineering Co. | Molecular weight distribution modification in tubular reactor |
US4752597A (en) * | 1985-12-12 | 1988-06-21 | Exxon Chemical Patents Inc. | New polymerization catalyst |
US5055438A (en) * | 1989-09-13 | 1991-10-08 | Exxon Chemical Patents, Inc. | Olefin polymerization catalysts |
US4939217A (en) * | 1987-04-03 | 1990-07-03 | Phillips Petroleum Company | Process for producing polyolefins and polyolefin catalysts |
US4814135A (en) | 1987-12-22 | 1989-03-21 | Union Carbide Corporation | Process for extrusion |
US5382630A (en) * | 1988-09-30 | 1995-01-17 | Exxon Chemical Patents Inc. | Linear ethylene interpolymer blends of interpolymers having narrow molecular weight and composition distribution |
US5382631A (en) * | 1988-09-30 | 1995-01-17 | Exxon Chemical Patents Inc. | Linear ethylene interpolymer blends of interpolymers having narrow molecular weight and composition distributions |
US5047485A (en) * | 1989-02-21 | 1991-09-10 | Himont Incorporated | Process for making a propylene polymer with free-end long chain branching and use thereof |
NZ235032A (en) * | 1989-08-31 | 1993-04-28 | Dow Chemical Co | Constrained geometry complexes of titanium, zirconium or hafnium comprising a substituted cyclopentadiene ligand; use as olefin polymerisation catalyst component |
US5057475A (en) * | 1989-09-13 | 1991-10-15 | Exxon Chemical Patents Inc. | Mono-Cp heteroatom containing group IVB transition metal complexes with MAO: supported catalyst for olefin polymerization |
US5064802A (en) * | 1989-09-14 | 1991-11-12 | The Dow Chemical Company | Metal complex compounds |
PL166690B1 (en) * | 1990-06-04 | 1995-06-30 | Exxon Chemical Patents Inc | Method of obtaining polymers of olefins |
US5272236A (en) * | 1991-10-15 | 1993-12-21 | The Dow Chemical Company | Elastic substantially linear olefin polymers |
US5098867A (en) * | 1990-11-13 | 1992-03-24 | Samsung Electronics Co., Ltd. | Heat treatment for compound semiconductor wafer |
JPH0565373A (en) * | 1991-09-06 | 1993-03-19 | Nippon Petrochem Co Ltd | Polyethylene composition |
US5562958A (en) * | 1991-10-15 | 1996-10-08 | The Dow Chemical Company | Packaging and wrapping film |
US5525695A (en) * | 1991-10-15 | 1996-06-11 | The Dow Chemical Company | Elastic linear interpolymers |
US5783638A (en) * | 1991-10-15 | 1998-07-21 | The Dow Chemical Company | Elastic substantially linear ethylene polymers |
US6143854A (en) * | 1993-08-06 | 2000-11-07 | Exxon Chemical Patents, Inc. | Polymerization catalysts, their production and use |
JP3186218B2 (en) * | 1992-05-20 | 2001-07-11 | 出光興産株式会社 | Terminal vinyl ethylene-propylene copolymer and method for producing the same |
CA2103379C (en) * | 1992-11-19 | 2000-05-23 | Toshiyuki Tsutsui | Catalyst for olefin polymerization, process for olefin polymerization using the same, ethylene/.alpha.-olefin copolymer, graft modified ethylene/.alpha.-olefin copolymer, and ethylene copolymer composition |
US6001941A (en) * | 1992-11-19 | 1999-12-14 | Mitsui Chemicals, Inc. | Ethylene α-olefin copolymer obtained by copolymerizing ethylene with an α-olefin |
JPH06289518A (en) * | 1993-04-05 | 1994-10-18 | Fuji Photo Film Co Ltd | Silver halide color photographic sensitive material |
PL175846B1 (en) | 1993-06-24 | 1999-02-26 | Dow Chemical Co | Complexes of titanium (ii) and zirconium (ii) and additive polymerisation catalysts made of them |
ES2141833T3 (en) * | 1993-08-06 | 2000-04-01 | Exxon Chemical Patents Inc | POLYMERIZATION CATALYSTS, THEIR PRODUCTION AND USE. |
ES2150529T3 (en) * | 1994-04-07 | 2000-12-01 | Bp Chem Int Ltd | POLYMERIZATION PROCEDURE. |
NL9400758A (en) * | 1994-05-06 | 1995-12-01 | Dsm Nv | Process for the preparation of a high molecular weight polymer from ethylene, alpha olefin and optionally diene. |
US5631069A (en) * | 1994-05-09 | 1997-05-20 | The Dow Chemical Company | Medium modulus molded material comprising substantially linear polyethlene and fabrication method |
AU698111B2 (en) * | 1994-09-08 | 1998-10-22 | Mobil Oil Corporation | Catalytic control of the MWD of a broad/bimodal resin in a single reactor |
US5773106A (en) * | 1994-10-21 | 1998-06-30 | The Dow Chemical Company | Polyolefin compositions exhibiting heat resistivity, low hexane-extractives and controlled modulus |
US5530072A (en) * | 1995-04-19 | 1996-06-25 | Mobil Oil Corporation | Introduction of long chain branching into linear polyethylenes |
US5882750A (en) | 1995-07-03 | 1999-03-16 | Mobil Oil Corporation | Single reactor bimodal HMW-HDPE film resin with improved bubble stability |
US5795941A (en) * | 1995-10-03 | 1998-08-18 | The Dow Chemical Company | Crosslinkable bimodal polyolefin compositions |
US5736258A (en) * | 1995-11-07 | 1998-04-07 | Union Carbide Chemicals & Plastics Technology Corporation | Film extruded from an in situ blend of ethylene copolymers |
US5679816A (en) * | 1996-01-03 | 1997-10-21 | The Dow Chemical Company | Preparation of biscyclopentadienyl diene complexes |
CA2244999C (en) * | 1996-03-05 | 2007-03-27 | The Dow Chemical Company | Rheology-modified polyolefins |
AU718884B2 (en) * | 1996-06-17 | 2000-04-20 | Exxon Chemical Patents Inc. | Mixed transition metal catalyst systems for olefin polymerization |
KR100486991B1 (en) * | 1996-06-17 | 2005-06-17 | 엑손모빌 케미칼 패턴츠 인코포레이티드 | Mixed transition metal catalyst systems for olefin polymerization |
BR9710518A (en) * | 1996-07-22 | 1999-08-17 | Dow Chemical Co | Metal complex, catalyst composition and polymerization process |
US5849823A (en) * | 1996-09-04 | 1998-12-15 | The Dow Chemical Company | Homogeneously branched ethylene α-olefin interpolymer compositions for use in gasket applications |
US6015868A (en) * | 1996-10-03 | 2000-01-18 | The Dow Chemical Company | Substituted indenyl containing metal complexes and olefin polymerization process |
US5965756A (en) * | 1996-12-19 | 1999-10-12 | The Dow Chemical Company | Fused ring substituted indenyl metal complexes and polymerization process |
EP0958313B1 (en) * | 1997-02-07 | 2002-09-25 | ExxonMobil Chemical Patents Inc. | Thermoplastic elastomer compositions from branched olefin copolymers |
US6114457A (en) * | 1997-02-07 | 2000-09-05 | Exxon Chemical Patents Inc. | High melt strength polyethylene compositions |
JPH1112289A (en) * | 1997-06-19 | 1999-01-19 | Sumitomo Chem Co Ltd | Production of crosslinking-type transition metal complex |
CN1243050C (en) * | 1997-08-15 | 2006-02-22 | 陶氏环球技术公司 | Films produced from substantially linear homogeneous olefine polymer compositions |
JPH11106417A (en) * | 1997-10-06 | 1999-04-20 | Asahi Chem Ind Co Ltd | Ultra-high-molecular-weight ethylene polymer excellent in wear property and composition thereof |
JPH11130807A (en) * | 1997-10-29 | 1999-05-18 | Idemitsu Petrochem Co Ltd | Transition metallic compound, catalyst for polymerizing propylene, production of propylene polymer using the same catalyst and propylene polymer |
US6197910B1 (en) * | 1997-12-10 | 2001-03-06 | Exxon Chemical Patents, Inc. | Propylene polymers incorporating macromers |
US6015898A (en) * | 1998-05-01 | 2000-01-18 | The United States Of America, As Represented By The Secretary Of The Army | Processes and compositions for nitration of N-substituted isowurtzitane compounds with concentrated nitric acid at elevated temperatures to form HNIW and recovery of gamma HNIW with high yields and purities |
US6207606B1 (en) * | 1998-05-15 | 2001-03-27 | Univation Technologies, Llc | Mixed catalysts and their use in a polymerization process |
CA2247703C (en) * | 1998-09-22 | 2007-04-17 | Nova Chemicals Ltd. | Dual reactor ethylene polymerization process |
EP0989141A1 (en) * | 1998-09-25 | 2000-03-29 | Fina Research S.A. | Production of multimodal polyethelene |
SE9804407D0 (en) * | 1998-12-18 | 1998-12-18 | Borealis Polymers Oy | A multimodal polymer composition |
US6107147A (en) * | 1998-12-18 | 2000-08-22 | Texas Instruments Incorporated | Stacked poly/amorphous silicon gate giving low sheet resistance silicide film at submicron linewidths |
AR022608A1 (en) * | 1999-02-17 | 2002-09-04 | Dow Chemical Co | AROMATIC INTERPOLIMERIC PRODUCT OF ALFA-OLEFINA / VINYL OR VINYLIDENE AND PROCESS FOR THEIR DEVELOPMENT THROUGH MULTIPLE CATALYSTING SYSTEMS |
AU2681000A (en) * | 1999-02-22 | 2000-09-14 | Borealis Technology Oy | Olefin polymerisation process |
US6114488A (en) * | 1999-03-02 | 2000-09-05 | Air Products And Chemicals, Inc. | Polyurethaneurea elastomers for dynamic applications |
EP1059332A1 (en) * | 1999-06-10 | 2000-12-13 | Fina Research S.A. | Polypropylene with high melt strength and drawability |
US6265493B1 (en) * | 1999-07-21 | 2001-07-24 | The Penn State Research Foundation | Polyolefin graft copolymers derived from linear copolymers of alpha-olefins and divinylbenzene having narrow molecular weight and composition distributions and process for preparing same |
US6369176B1 (en) * | 1999-08-19 | 2002-04-09 | Dupont Dow Elastomers Llc | Process for preparing in a single reactor polymer blends having a broad molecular weight distribution |
JP2001064314A (en) * | 1999-08-26 | 2001-03-13 | Idemitsu Petrochem Co Ltd | Olefin polymerization catalyst and production of olefin polymer |
US6372868B1 (en) * | 1999-12-07 | 2002-04-16 | Univation Technologies, Llc | Start up methods for multiple catalyst systems |
DE60006146T2 (en) * | 1999-11-04 | 2004-09-30 | Exxonmobil Chemical Patents Inc., Baytown | PROPYLENE COPOLYMER FOAMS AND THEIR USE |
CN1409729A (en) * | 1999-12-10 | 2003-04-09 | 陶氏环球技术公司 | Substituted group-4 metal complexes, catalysts and olefin polymerization process |
AU2001263457A1 (en) * | 2000-05-26 | 2001-12-11 | The Dow Global Technologies Inc. | Polyethylene rich/polypropylene blends and their uses |
US6545094B2 (en) * | 2001-03-09 | 2003-04-08 | The Dow Chemical Company | Blends of ethylenic polymers with improved modulus and melt strength and articles fabricated from these blends |
MY137183A (en) * | 2001-03-16 | 2009-01-30 | Dow Global Technologies Inc | Method of making interpolymers and products made therefrom |
-
2002
- 2002-03-14 MY MYPI20020940A patent/MY137183A/en unknown
- 2002-03-14 MY MYPI20020945A patent/MY131000A/en unknown
- 2002-03-15 KR KR1020037012069A patent/KR100880097B1/en active IP Right Grant
- 2002-03-15 BR BR0208486-4A patent/BR0208486A/en not_active Application Discontinuation
- 2002-03-15 CN CNB2006100730457A patent/CN100519588C/en not_active Expired - Fee Related
- 2002-03-15 MX MXPA03008322A patent/MXPA03008322A/en active IP Right Grant
- 2002-03-15 ES ES02726644T patent/ES2742501T3/en not_active Expired - Lifetime
- 2002-03-15 WO PCT/US2002/007919 patent/WO2002074816A2/en not_active Application Discontinuation
- 2002-03-15 CN CNB028067029A patent/CN1255439C/en not_active Expired - Fee Related
- 2002-03-15 AR ARP020100936A patent/AR033003A1/en not_active Application Discontinuation
- 2002-03-15 MX MXPA03008321A patent/MXPA03008321A/en active IP Right Grant
- 2002-03-15 JP JP2002573823A patent/JP4249984B2/en not_active Expired - Lifetime
- 2002-03-15 CA CA2441028A patent/CA2441028C/en not_active Expired - Lifetime
- 2002-03-15 KR KR1020087007772A patent/KR100898436B1/en active IP Right Grant
- 2002-03-15 US US10/100,687 patent/US6875816B2/en not_active Ceased
- 2002-03-15 PL PL02368551A patent/PL368551A1/en not_active Application Discontinuation
- 2002-03-15 AU AU2002258526A patent/AU2002258526B2/en not_active Ceased
- 2002-03-15 KR KR1020087007775A patent/KR100900605B1/en active IP Right Grant
- 2002-03-15 JP JP2002573822A patent/JP2004536895A/en active Pending
- 2002-03-15 CA CA2441262A patent/CA2441262C/en not_active Expired - Lifetime
- 2002-03-15 WO PCT/US2002/008121 patent/WO2002074817A2/en active IP Right Grant
- 2002-03-15 EP EP02726644.4A patent/EP1377613B1/en not_active Expired - Lifetime
- 2002-03-15 CZ CZ20032816A patent/CZ20032816A3/en unknown
- 2002-03-15 PL PL02364603A patent/PL364603A1/en not_active Application Discontinuation
- 2002-03-15 CN CN2007100070841A patent/CN101143908B/en not_active Expired - Lifetime
- 2002-03-15 EP EP02728477.7A patent/EP1412398B1/en not_active Expired - Lifetime
- 2002-03-15 US US10/100,557 patent/US6924342B2/en not_active Expired - Lifetime
- 2002-03-15 AR ARP020100935A patent/AR033002A1/en not_active Application Discontinuation
- 2002-03-15 CA CA2797698A patent/CA2797698C/en not_active Expired - Lifetime
- 2002-03-15 CN CNB028066960A patent/CN1309744C/en not_active Expired - Lifetime
- 2002-03-15 CZ CZ20032817A patent/CZ20032817A3/en unknown
- 2002-03-15 BR BR0208485-6A patent/BR0208485A/en not_active Application Discontinuation
- 2002-03-15 KR KR1020037012067A patent/KR100917540B1/en active IP Right Grant
- 2002-03-15 ES ES02728477T patent/ES2734429T3/en not_active Expired - Lifetime
-
2003
- 2003-09-15 NO NO20034078A patent/NO20034078L/en not_active Application Discontinuation
- 2003-09-15 NO NO20034079A patent/NO20034079L/en not_active Application Discontinuation
-
2004
- 2004-08-16 US US10/918,906 patent/US7999039B2/en not_active Expired - Fee Related
- 2004-08-17 US US10/920,485 patent/US7300983B2/en not_active Expired - Lifetime
-
2005
- 2005-03-21 US US11/085,390 patent/US7271221B2/en not_active Expired - Lifetime
- 2005-03-21 US US11/085,793 patent/US7148305B2/en not_active Expired - Lifetime
-
2007
- 2007-02-02 AU AU2007200466A patent/AU2007200466B2/en not_active Ceased
- 2007-07-19 AU AU2007203338A patent/AU2007203338B2/en not_active Ceased
-
2008
- 2008-03-06 JP JP2008056619A patent/JP2008179825A/en not_active Withdrawn
- 2008-04-21 JP JP2008110304A patent/JP2008231433A/en active Pending
-
2009
- 2009-10-23 US US12/604,940 patent/USRE43004E1/en not_active Expired - Lifetime
- 2009-10-23 US US12/604,905 patent/USRE42276E1/en not_active Expired - Lifetime
-
2011
- 2011-08-26 JP JP2011184218A patent/JP5323150B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007068083A1 (en) * | 2005-12-13 | 2007-06-21 | Nova Chemicals (International) S.A. | On the fly catalyst transitions |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2441028A1 (en) | Method of making interpolymers and products made therefrom | |
EP1008607B1 (en) | Propylene copolymer and process for the production thereof | |
US5914289A (en) | Supported metallocene-alumoxane catalysts for the preparation of polyethylene having a broad monomodal molecular weight distribution | |
JP5283292B2 (en) | Production of multimodal polyethylene | |
JP2008179825A5 (en) | ||
US6218472B1 (en) | Production of multimodal polyethylene | |
CN111454389B (en) | Catalyst composition for polymerization of polyolefin, method for preparing polyolefin, and polyolefin resin | |
Galland et al. | Linear low‐density polyethylene synthesis promoted by homogeneous and supported catalysts | |
JP2001525457A (en) | Polymerization catalyst systems, their use, their products, and their products | |
RU98122612A (en) | POLYOLEPHIN COMPOSITION WITH MAXIMUM MOLECULAR MASS IN THIS PART OF THE COMPOSITION WHICH HAS THE HIGHEST CONTENT OF THE SONOMOMER | |
KR101485566B1 (en) | Polyethylene having excellent sealing property at low temperature, and method for preparing the same | |
CA2145635A1 (en) | Long chain branched polymers and a process to make long chain branched polymers | |
CA2480399A1 (en) | Method for polymerisation of olefins with indeno-indolyl catalysts | |
EP1203035A1 (en) | Improvements in or relating to polymers | |
KR101397077B1 (en) | Polyethylene for film having excellent dart falling impact strength and high clarity and preparation method thereof | |
CA2560348A1 (en) | Method of controlling olefin polymerization | |
CN113166318B (en) | Olefin polymers | |
Chu et al. | Variation of molecular weight distribution (MWD) and short chain branching distribution (SCBD) of ethylene/1‐hexene copolymers produced with different in‐situ supported metallocene catalysts | |
EP1428840A1 (en) | Process for producing polymer | |
CN113227171A (en) | Catalyst for polymerizing olefin and olefin polymer prepared using the same | |
Villar et al. | Co‐and terpolymerization of ethylene, propylene, and higher α‐olefins with high propylene contents using metallocene catalysts | |
KR101319786B1 (en) | Process for the preparation of ethylene polymers using a number of reactors arranged in series | |
Jung et al. | Norbornene copolymerization with α-olefins using methylene-bridged ansa-zirconocene | |
Bergemann et al. | Copolymerization of ethylene and linear 1-olefins with a metallocene catalyst system under high pressure. Part II. Comparison of propene, 1-butene, 1-hexene and 1-decene | |
EP1448633B2 (en) | Two-step polymerization process |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20220315 |