WO2005058569A1 - Process for making a pellet - Google Patents
Process for making a pellet Download PDFInfo
- Publication number
- WO2005058569A1 WO2005058569A1 PCT/GB2004/005273 GB2004005273W WO2005058569A1 WO 2005058569 A1 WO2005058569 A1 WO 2005058569A1 GB 2004005273 W GB2004005273 W GB 2004005273W WO 2005058569 A1 WO2005058569 A1 WO 2005058569A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- process according
- poly
- plasticiser
- temperature
- pellets
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/022—Melting the material to be shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/10—Making granules by moulding the material, i.e. treating it in the molten state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
- B29C48/865—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/18—Plasticising macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/203—Solid polymers with solid and/or liquid additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2029/00—Use of polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals or derivatives thereof as moulding material
- B29K2029/04—PVOH, i.e. polyvinyl alcohol
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0059—Degradable
- B29K2995/0062—Degradable water-soluble
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
Definitions
- the present invention relates to a process for making pellets of a thermoplastic extrudable polymer.
- pellets of thermoplastic extrudable polymer are well known in the plastic industry. Typically the pellets are cylindrical and approximately 3mm in diameter and 3mm in length. The pellets are used in a wide range of plastic article manufacturing processes.
- the pellet manufacturing process generally includes a plas- tification step.
- the formulation to be pellet- ised is melted and fed into a twin screw extruder. This has been seen to be beneficial as the pellets produced have been found to comprise of a homogeneous blend of the pellet components due to effective mixing of all molten components in the extruder.
- EP-A-0 415 357 describes the making of pellets comprising polyvinylalcohol (PVOH) by melt extrusion with the extrusion being carried out in the temperature range of 150-195°C.
- PVOH polyvinylalcohol
- Pelletising processes having a plastification . step have sev- eral disadvantages associated therewith.
- the principle disadvantage is the requirement for heating, which means that the energy consumption of these processes is very high.
- these 'hot' processes are not suitable for poly- mers which are heat sensitive (such as PVOH) due to heat induced decomposition. Also these 'hot' processes give a heat history to the polymer which has been found to negatively influence properties of the polymer. In the case of PVOH this has been found to detrimentally affect the PVOH water solubility .
- WO-A-98/26911 describes a low temperature process for the manufacture of PVOH pellets.
- the pellets components in this case a mixture of powdered PVOH and various additives such as plasticisers is fed between two rollers and compressed into pellets.
- the PVOH component in the pellet blend is not melted in the process and so the issue of heat degradation is avoided.
- GB-937 057 describes such a low temperature compression process. This follows initial mixing of the plasticiser and PVOH at an elevated temperature.
- pellets wherein the thermoplastic polymer component of the pellets is PVOH
- the pouches are commonly used to contain a detergent composition for use in an automatic washing machine (laundry / dishwasher) .
- laundry / dishwasher automatic washing machine
- thermoplastic extrudable resin composition comprising a thermoplastic polymer, plasticiser and optionally further additives, the plasticiser comprising a component which is solid at room temperature, wherein the process is run at a temperature above the melting point of the plasticiser and below the melting / plasti- fication temperature of the thermoplastic polymer.
- the shaping process may comprise pressing, extrusion, calendering and / or compaction. Most preferably the shaping process comprises extrusion.
- the process of the present invention has been found to overcome the disadvantages associated with the prior art. Firstly as the process is operated at a temperature below the melting / plastification temperature of the thermoplas- tic polymer the process has been found to be extremely energy efficient . Furthermore the heat degradation of heat sensitive materials in the resin blend is dramatically reduced by the lowered process temperatures .
- the pellets have been found to have a very low friability. Thus the pellets have a much lower tendency to release dust upon friction rubbing.
- pellets are produced at a temperature above the melting point of the plasticiser component the pellets have been found to have excellent homogeneity. More specifically both the overall composition of each pellet and the distribution of the individual components within the pellets have been found to have an high level of predictability and low variance. This is especially important when the pellets are used in a further processing step such as a second extrusion process (e.g. injection moulding) for the manufacture of an article comprising the thermoplastic poly- raer.
- a second extrusion process e.g. injection moulding
- the components are delivered to the shaping equipment used in the process in particulate form.
- the particle size of the raw materials used to make the pellets should be small . This has been observed to ensure high homogeneity of the pellets.
- the particle size of the raw materials used preferably is below 2000 ⁇ m, more preferably below 1200 ⁇ m, more preferably below 400 ⁇ m and most preferably about 200 ⁇ m.
- the plasticiser is present in the composition with at least 5%, more preferably 10%, most preferably 15%.
- the temperature of the material within the extruder does not exceed a temperature which is 10°C below the melting / plastification temperature of the thermoplastic polymer at any time. More preferably it does not exceed 15°C, more preferably 30°C and most preferably 45°C below the melting / plastification temperature of the thermoplastic polymer. However, it is desired that the temperature of the material exceeds the ambient air temperature .
- the temperature of material within the extruder is at least 40°C, more preferably at least 45°C, and most preferably at least 50°C.
- the plasticiser has to at least partially melt at the preferred operating temperature.
- the melting point of the plasticiser component is preferably at least 15°C, preferably at least 30°C and most preferably at least 45°C below the melting / plastification temperature of the thermoplastic polymer.
- the plasticiser comprises a carbohydrate.
- Carbohydrates are usually represented by the generalised formula C x (H 2 0) y .
- the term herein also includes materials which are similar in nature like gluconic acids or amino sugars which cannot be fully represented by this formula.
- Other carbohydrate derivatives like sugar alcohols such as sorbitol, glucitol, mannitol, galactitol, dulcitol, xylitol, erythritol, isomaltutose and isomalt fall within this term.
- Most preferred carbohydrates include the more thermally stable carbohydrates such as sorbitol, glucitol, mannitol, ga- lactitol, dulcitol, xylitol, erythritol, isomaltutose and isomalt .
- Other preferred plasticiser systems include solid fatty acid alkoxylates, fatty alcohol alkoxylates or polyalkylene gly- cols (such as long chain polyethylene glycol) .
- the plasticiser may comprise a further auxilliary component.
- Preferred auxilliary components include glycerin, ethylene glycol, propylene glycol, diethylene glycol, diproylene glycol, triethanol amine, diethanol amine and methyldiethyl amine.
- cooling may be assisted.
- One way in which this may be done is by employing a cooled metal belt onto which the or each strand issues.
- Another way in which this may be done is by using a cooled fluid, preferably cooled air, downstream of the extruder.
- Another way is by blowing a fluid, preferably air, across the or each strand.
- the or each strand is separated into pellets, during the manufacture.
- the strands are separated into pellets preferably by cutting.
- other separation methods for example twisting, are not ruled out.
- a method may be envisaged whereby the strand is twisted at intervals when still plastic, to form "sausages", which can be separated by breaking the con- nections, once they have, become more brittle.
- Partial cutting or pressing or nipping or perforating (all such methods collectively called “scoring” herein) to form frangible separation webs, may also be employed, to form tablet precursors. Separation of the precursors to produce pellets may be effected during manufacture or by the consumer, man- ageable lengths being provided from which the consumer breaks or twists off pellets as required.
- a pellet precursor may be, for example, a straight row of pellets, to be broken off as needed.
- the extrusion pressure may be whatever is required to carry out the process in an efficient manner. Suitably it is in excess of 3 bar (0.3MPa), preferably in excess of 5 bar (0.5MPa), and more preferably is preferably in excess of 8 bar (O. ⁇ MPa). More preferably still is preferably in excess of 12 bar (1.2MPa). Most preferably it is in excess of 40 bar (4MPa) .
- the extrusion pressure preferably does not exceed 100 bar (lOMPa) , more preferably 60 bar (6MPa) .
- the pellets are for use in injection moulding pro- Devices.
- the injection moulding process is preferably used for the manufacture of water soluble pouches intended to contain a detergent formulation for use in an automatic washing machine or in an automatic dishwasher.
- the pellets preferably comprising a water-soluble / water- dispersible thermoplastic polymer
- the advantageous properties of the pellets produced in accordance with the invention have been found to be particularly beneficial. It is believed that this property is most beneficial as the integrity of the injection moulded product relies upon such high homogeneity of the composition being injection moulded as otherwise the low homogeneity will be reflected in the injection moulded product.
- the high homogeneity has been found to lead to predictable water solubility of injection moulded products.
- the water-soluble / water-dispersible thermoplastic polymer comprises PVOH or a derivative thereof.
- water-soluble / water-dispersible polymers may be used in the process either as an alternative or in addition to PVOH.
- Preferred examples include poly (vinylpyrollidone) , poly (acrylic acid), poly(maleic acid), a cellulose derivative (such as a cellulose ether / hydroxypropyl methyl cel- lulose) , poly(glycolide) , poly (glycolic acid), poly (lactides) , poly (lactic acid) and copolymers thereof.
- Processing aids may be present in the admixture which is processed.
- Preferred processing aids include mono-, di-, tri-carboxylic acids / salts thereof, fatty acids such as stearic acid / salts thereof, mono-, di- or triglycerides / salts thereof, aerosil, inorganic and organic pigments.
- the pelletising process was conducted on an extruder (twin screw, ICMA S. Giorgio, Milan (dedicated to processing of plastic blends and alloys) .
- the extruder had the following characteristics.
- Screw diameter 35 mm Screw length: 40 cm
- the extruder was attached to a two-roll unit used as a cooling source and connected to a pellet cutter.
- Example 2 The pellets obtained were chilled to room temperature. The formula yielded solid pellets having low friability.
- Example 2 The pellets obtained were chilled to room temperature. The formula yielded solid pellets having low friability.
- Example 2 Example 2 :
- the pelletising process was conducted on a pellet press (model V3-75 from Universal Milling Technologies) .
- the press had the following characteristics.
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2549149A CA2549149C (en) | 2003-12-19 | 2004-12-16 | Process for making a pellet |
US10/595,919 US20070075453A1 (en) | 2003-12-19 | 2004-12-16 | Process for making a pellet |
PL04806087T PL1694480T3 (en) | 2003-12-19 | 2004-12-16 | Process for making a pellet |
BRPI0416904-2A BRPI0416904A (en) | 2003-12-19 | 2004-12-16 | process to make a pallet |
EP04806087.5A EP1694480B1 (en) | 2003-12-19 | 2004-12-16 | Process for making a pellet |
AU2004299333A AU2004299333B2 (en) | 2003-12-19 | 2004-12-16 | Process for making a pellet |
ZA2006/04239A ZA200604239B (en) | 2003-12-19 | 2006-05-25 | Process for making a pallet |
AU2010212479A AU2010212479B2 (en) | 2003-12-19 | 2010-08-20 | Process for making a pellet |
US12/949,302 US9327425B2 (en) | 2003-12-19 | 2010-11-18 | Process for making a pellet |
US15/139,577 US20160279830A1 (en) | 2003-12-19 | 2016-04-27 | Process for making a pellet |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0329529A GB2409204A (en) | 2003-12-19 | 2003-12-19 | Plasticized thermoplastic polymer |
GB0329529.2 | 2003-12-19 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/595,919 A-371-Of-International US20070075453A1 (en) | 2003-12-19 | 2004-12-16 | Process for making a pellet |
US12/949,302 Continuation US9327425B2 (en) | 2003-12-19 | 2010-11-18 | Process for making a pellet |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005058569A1 true WO2005058569A1 (en) | 2005-06-30 |
Family
ID=30776162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2004/005273 WO2005058569A1 (en) | 2003-12-19 | 2004-12-16 | Process for making a pellet |
Country Status (12)
Country | Link |
---|---|
US (3) | US20070075453A1 (en) |
EP (2) | EP1694480B1 (en) |
CN (1) | CN1894080A (en) |
AU (2) | AU2004299333B2 (en) |
BR (1) | BRPI0416904A (en) |
CA (1) | CA2549149C (en) |
ES (1) | ES2536277T3 (en) |
GB (1) | GB2409204A (en) |
PL (2) | PL2202040T3 (en) |
TR (1) | TR201900584T4 (en) |
WO (1) | WO2005058569A1 (en) |
ZA (1) | ZA200604239B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007026166A1 (en) | 2007-06-04 | 2008-12-11 | Kuraray Europe Gmbh | Thermoplastic shaping of polyvinyl alcohol for manufacturing granulates, foil, fibers or coating for use in pharmaceutical or cosmetic applications, involves accomplishing shaping in absence of extrusion additive |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8318230B2 (en) * | 2005-05-02 | 2012-11-27 | Henkel Ag & Co. Kgaa | Use of debranched starch in extrusion-spheronization pharmaceutical pellets |
ES2293859B1 (en) * | 2007-09-28 | 2009-04-01 | Plasticos Hidrosolubles, S.L. | PROCEDURE FOR THE PREPARATION OF A HIGH FLUIDITY POLYETHENOL GRANZA. |
US20110248423A1 (en) * | 2010-04-07 | 2011-10-13 | Steven Proper | Synthetic Mulch and Method of Making Same |
US9630349B2 (en) * | 2013-08-26 | 2017-04-25 | Ingenia Polymers, Inc. | Compacted pelletized additive blends containing a polymer carrier |
JP6575059B2 (en) * | 2013-12-24 | 2019-09-18 | 三菱ケミカル株式会社 | Process for producing ethylene-vinyl ester copolymer saponified pellets and ethylene-vinyl ester copolymer saponified pellets |
CA3023795C (en) * | 2016-05-13 | 2024-01-16 | Merck Patent Gmbh | Use of an amino sugar as plasticizer |
CN107802041A (en) * | 2017-11-28 | 2018-03-16 | 广东汇星新材料科技股份有限公司 | A kind of underwear that can remove body odour for a long time |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2841238A1 (en) * | 1978-09-22 | 1980-04-03 | Hoechst Ag | Easily processed PVA granulate contg. plasticiser - is prepd. by mixing dry PVA granulate, plasticiser and water to cause swelling and temporary agglomeration |
EP0466057A1 (en) * | 1990-07-12 | 1992-01-15 | Air Products And Chemicals, Inc. | Extrudable polyvinyl alcohol compositions containing thermoplastic polyurethane |
FR2831478A1 (en) * | 2001-10-25 | 2003-05-02 | Multibase | PROCESS FOR THE PRODUCTION OF A POLYVINYL-FREE POLYVINYL-BASED THERMOPLASTIC COMPOSITION FREE OF INFERTS AND DEGRADATION |
Family Cites Families (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL279781A (en) * | 1961-06-15 | |||
US3519706A (en) * | 1968-06-25 | 1970-07-07 | Athan A Pantsios | Method of forming hot melt adhesive pellets |
US3607812A (en) * | 1968-12-17 | 1971-09-21 | Denki Kagaku Kogyo Kk | Method of manufacturing polyvinyl alcohol films and product |
DE2302871C3 (en) | 1973-01-20 | 1978-11-30 | Hoechst Ag, 6000 Frankfurt | Process for plasticizing polyvinyl alcohol |
US4206101A (en) * | 1974-01-03 | 1980-06-03 | E. I. Du Pont De Nemours And Company | Melt extrudable cold water-soluble films |
US3997489A (en) * | 1974-11-25 | 1976-12-14 | E. I. Du Pont De Nemours And Company | Melt extrudable polyvinyl alcohol compositions |
US4119604A (en) * | 1976-08-18 | 1978-10-10 | E. I. Du Pont De Nemours And Company | Polyvinyl alcohol compositions for use in the preparation of water-soluble films |
US4150009A (en) * | 1977-06-27 | 1979-04-17 | Abtec Chemical Company | ABS extrusion compositions |
ES478736A1 (en) * | 1978-03-23 | 1979-06-01 | Hoechst Ag | Polyvinyl alcohol pellets containing a plasticizer, and method for their preparation. |
IT1140254B (en) * | 1981-10-30 | 1986-09-24 | Pietro Cattaneo | THERMOPLASTIC COMPOSITION BASED ON POLYVINYL ALCOHOL SUITABLE TO BE SUBJECTED AS SUCH TO THE COMMON HOT FORMING METHODS OF THERMOPLASTIC MATERIALS, SUCH AS MOLDING AND EXTRUSION, FOR THE PRODUCTION OF MANUFACTURED, AND MANUFACTURED SUCH PRODUCTS |
DE3612211A1 (en) * | 1986-04-11 | 1987-10-15 | Basf Ag | CONTINUOUS TABLET METHOD |
US4824828A (en) * | 1987-10-29 | 1989-04-25 | International Flavors & Fragrances Inc. | Schiff base reaction products of aldehydes and alkyl anthranilates and organoleptic uses thereof |
US4865853A (en) * | 1987-10-29 | 1989-09-12 | International Flavors & Fragrances Inc. | Flavoring with schiff base reaction products of aldehydes and alkyl anthranilates |
US4775720A (en) * | 1987-10-29 | 1988-10-04 | International Flavors & Fragrances Inc. | Schiff base reaction products of aldehydes and alkyl anthranilates and organoleptic uses thereof |
FR2634215A1 (en) * | 1988-07-13 | 1990-01-19 | Rhone Poulenc Chimie | MOLDING COMPOSITIONS BASED ON THERMOTROPIC POLYMERS REINFORCED BY MINERAL CHARGES |
NZ234921A (en) | 1989-09-01 | 1993-02-25 | Air Prod & Chem | Polyvinyl alcohol pellet prepared by melt extrusion |
US5137969A (en) * | 1989-09-01 | 1992-08-11 | Air Products And Chemicals, Inc. | Melt extrudable polyvinyl alcohol pellets having reduced maximum melt temperature and reduced gel content |
US5116627A (en) * | 1991-03-07 | 1992-05-26 | International Flavors & Fragrances Inc. | Chewing gum containing compositions for controlled release of flavor bearing substances and process for producing same |
US5089469A (en) * | 1991-04-25 | 1992-02-18 | International Flavors & Fragrances Inc. | Bisabolene-containing composition, process for preparing same, organoleptic uses thereof and uses thereof as insect repellent |
IT1256693B (en) * | 1992-03-10 | 1995-12-12 | Novamont Spa | FILMABLE AMIDACEA POLYMERIC COMPOSITION, AND SHAPED ITEMS, PARTICULARLY FILMS AND LEAVES OBTAINED FROM SUCH COMPOSITION, HAVING HIGH BARRIER EFFECT AND RELATED PROCEDURE. |
US5206278A (en) * | 1991-10-18 | 1993-04-27 | Air Products And Chemicals, Inc. | Extrudable polyvinyl alcohol compositions containing thermoplastic polyethylene oxide |
EP0635545A3 (en) * | 1993-07-21 | 1995-07-12 | Air Prod & Chem | Injection molded articles from extrudable polyvinyl alcohol compositions. |
GB9415720D0 (en) * | 1994-08-03 | 1994-09-21 | Environmental Polymers Ltd | Extrusion and moulding apparatus and method |
DE4446470A1 (en) * | 1994-12-23 | 1996-06-27 | Basf Ag | Process for the production of dividable tablets |
US6437048B1 (en) * | 1995-12-01 | 2002-08-20 | Chisso Corporation | Molded resin articles |
US5804625A (en) * | 1996-05-21 | 1998-09-08 | Minnesota Mining And Manufacturing Company | Fluorochemical and hydrocarbon surfactant blends as hydrophilic additives to thermoplastic polymers |
GB2320456B (en) | 1996-12-18 | 2001-09-05 | Fip Holdings Ltd | Polymer processing method |
TR200000516T2 (en) * | 1997-08-27 | 2001-01-22 | The Dow Chemical Company | Combination of alloys of polyolefins with alpha-olefin / vinyl aromatic monomer or blocked aliphatic vinyl monomer interpolymers |
DK1017392T3 (en) * | 1997-09-25 | 2002-10-21 | Bayer Ag | Medicines |
US6100307A (en) * | 1998-03-17 | 2000-08-08 | Shell Oil Company | Compositions of polycondensed branched polyester polymers and aromatic polycarbonates, and the closed cell polymer foams made therefrom |
US6821456B2 (en) * | 1998-09-22 | 2004-11-23 | Albemarle Corporation | Granular polymer additives and their preparation |
JP2001039428A (en) * | 1999-07-16 | 2001-02-13 | Jingurin Co | Production of disposable container using starch |
US6793860B2 (en) * | 2000-01-05 | 2004-09-21 | Arkwright Incorporated | Methods for producing aqueous ink-jet recording media using hot-melt extrudable compositions and media produced therefrom |
US6303553B1 (en) | 2000-10-13 | 2001-10-16 | Colgate-Palmolive Company | Powdered automatic dishwashing cleaning system |
GB2369083A (en) * | 2000-11-17 | 2002-05-22 | Procter & Gamble | Process for preparing pouches |
DE10142922A1 (en) | 2001-09-01 | 2003-03-20 | Kuraray Specialities Europe | Polyvinyl alcohol moldings, processes for their production by means of thermoplastic processes and their use |
-
2003
- 2003-12-19 GB GB0329529A patent/GB2409204A/en not_active Withdrawn
-
2004
- 2004-12-16 EP EP04806087.5A patent/EP1694480B1/en active Active
- 2004-12-16 PL PL10158305T patent/PL2202040T3/en unknown
- 2004-12-16 BR BRPI0416904-2A patent/BRPI0416904A/en not_active Application Discontinuation
- 2004-12-16 WO PCT/GB2004/005273 patent/WO2005058569A1/en active Application Filing
- 2004-12-16 EP EP10158305.2A patent/EP2202040B1/en active Active
- 2004-12-16 PL PL04806087T patent/PL1694480T3/en unknown
- 2004-12-16 US US10/595,919 patent/US20070075453A1/en not_active Abandoned
- 2004-12-16 ES ES10158305.2T patent/ES2536277T3/en active Active
- 2004-12-16 CA CA2549149A patent/CA2549149C/en not_active Expired - Fee Related
- 2004-12-16 AU AU2004299333A patent/AU2004299333B2/en not_active Ceased
- 2004-12-16 CN CNA200480037456XA patent/CN1894080A/en active Pending
- 2004-12-16 TR TR2019/00584T patent/TR201900584T4/en unknown
-
2006
- 2006-05-25 ZA ZA2006/04239A patent/ZA200604239B/en unknown
-
2010
- 2010-08-20 AU AU2010212479A patent/AU2010212479B2/en not_active Ceased
- 2010-11-18 US US12/949,302 patent/US9327425B2/en active Active
-
2016
- 2016-04-27 US US15/139,577 patent/US20160279830A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2841238A1 (en) * | 1978-09-22 | 1980-04-03 | Hoechst Ag | Easily processed PVA granulate contg. plasticiser - is prepd. by mixing dry PVA granulate, plasticiser and water to cause swelling and temporary agglomeration |
EP0466057A1 (en) * | 1990-07-12 | 1992-01-15 | Air Products And Chemicals, Inc. | Extrudable polyvinyl alcohol compositions containing thermoplastic polyurethane |
FR2831478A1 (en) * | 2001-10-25 | 2003-05-02 | Multibase | PROCESS FOR THE PRODUCTION OF A POLYVINYL-FREE POLYVINYL-BASED THERMOPLASTIC COMPOSITION FREE OF INFERTS AND DEGRADATION |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007026166A1 (en) | 2007-06-04 | 2008-12-11 | Kuraray Europe Gmbh | Thermoplastic shaping of polyvinyl alcohol for manufacturing granulates, foil, fibers or coating for use in pharmaceutical or cosmetic applications, involves accomplishing shaping in absence of extrusion additive |
Also Published As
Publication number | Publication date |
---|---|
EP1694480A1 (en) | 2006-08-30 |
US20110062620A1 (en) | 2011-03-17 |
AU2010212479A1 (en) | 2010-09-09 |
EP2202040A3 (en) | 2013-02-20 |
PL2202040T3 (en) | 2015-07-31 |
US20070075453A1 (en) | 2007-04-05 |
EP1694480B1 (en) | 2018-10-24 |
CA2549149C (en) | 2015-08-25 |
BRPI0416904A (en) | 2007-01-16 |
GB2409204A (en) | 2005-06-22 |
CA2549149A1 (en) | 2005-06-30 |
EP2202040A2 (en) | 2010-06-30 |
EP2202040B1 (en) | 2015-02-25 |
US9327425B2 (en) | 2016-05-03 |
ES2536277T3 (en) | 2015-05-22 |
GB0329529D0 (en) | 2004-01-28 |
ZA200604239B (en) | 2007-10-31 |
AU2004299333A1 (en) | 2005-06-30 |
AU2010212479B2 (en) | 2012-03-01 |
US20160279830A1 (en) | 2016-09-29 |
TR201900584T4 (en) | 2019-02-21 |
AU2004299333B2 (en) | 2010-06-17 |
CN1894080A (en) | 2007-01-10 |
PL1694480T3 (en) | 2019-05-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9327425B2 (en) | Process for making a pellet | |
AU742856B2 (en) | Polymer processing method and tablet-forming apparatus | |
JPH10503723A (en) | Extrusion apparatus, extrusion method and thermoplastic polymer extrudate | |
HU213950B (en) | Method for producing of biologically degradable polymer compositions | |
KR102163344B1 (en) | Method of preparing bioplastics, bioplastics parepared thereby, and film, sheet or container using the same | |
US11945942B2 (en) | Starch pellets for sheet extrusion and methods for forming the pellets | |
CN107266838B (en) | Thermoplastic polyvinyl alcohol water-soluble compound and preparation method thereof | |
JP6575059B2 (en) | Process for producing ethylene-vinyl ester copolymer saponified pellets and ethylene-vinyl ester copolymer saponified pellets | |
CN108486683A (en) | PET/PVA sea-island fibres and its production technology with water-soluble marine facies | |
JP4732185B2 (en) | Method for producing biodegradable polyester resin composite material | |
CN107266761B (en) | Thermoplastic polyvinyl alcohol water-resistant composite and preparation method thereof | |
EP1745097B1 (en) | An extrusion process | |
JP2002371187A (en) | Method for producing biodegradable plastic molded product | |
CN113910485A (en) | Biodegradable polymer bead, preparation method and equipment | |
JP4635433B2 (en) | Melt granulated product of poly-3-hydroxybutyrate polymer and method for producing the same | |
KR100514054B1 (en) | A Product made from starch foam and adhesive mixture and its preparing method | |
TW202302319A (en) | Method and apparatus for manufacturing resin composite material | |
CN113444344A (en) | High-temperature-resistant high-toughness full-bio-based degradable plastic and preparation method thereof | |
CN116277707A (en) | Preparation method of thermoplastic plastic product | |
PL236285B1 (en) | Biodegradable polymer composite and method for producing it | |
JP2018104628A (en) | Manufacturing method of starch composite intermediate | |
JP2002096322A (en) | Method for manufacturing composite material pellet of thermoplastic resin |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480037456.X Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004299333 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006/04239 Country of ref document: ZA Ref document number: 200604239 Country of ref document: ZA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2549149 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004806087 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2004299333 Country of ref document: AU Date of ref document: 20041216 Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2004299333 Country of ref document: AU |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007075453 Country of ref document: US Ref document number: 10595919 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2004806087 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: PI0416904 Country of ref document: BR |
|
WWP | Wipo information: published in national office |
Ref document number: 10595919 Country of ref document: US |