CA2554103A1 - Fibers and nonwovens comprising polypropylene blends and mixtures - Google Patents

Fibers and nonwovens comprising polypropylene blends and mixtures Download PDF

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Publication number
CA2554103A1
CA2554103A1 CA002554103A CA2554103A CA2554103A1 CA 2554103 A1 CA2554103 A1 CA 2554103A1 CA 002554103 A CA002554103 A CA 002554103A CA 2554103 A CA2554103 A CA 2554103A CA 2554103 A1 CA2554103 A1 CA 2554103A1
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CA
Canada
Prior art keywords
polymeric
polypropylene
proceeding
minutes
fibers
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
Application number
CA002554103A
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French (fr)
Other versions
CA2554103C (en
Inventor
Jean-Philippe Marie Autran
Kelyn Anne Arora
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Procter and Gamble Co
Original Assignee
The Procter & Gamble Company
Jean-Philippe Marie Autran
Kelyn Anne Arora
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Publication date
Application filed by The Procter & Gamble Company, Jean-Philippe Marie Autran, Kelyn Anne Arora filed Critical The Procter & Gamble Company
Publication of CA2554103A1 publication Critical patent/CA2554103A1/en
Application granted granted Critical
Publication of CA2554103C publication Critical patent/CA2554103C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • C08L23/10—Homopolymers or copolymers of propene
    • 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
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5412—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres sheath-core
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/013—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/12—Applications used for fibers
    • 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

Abstract

Fibers and nonwoven materials comprising polymeric blends and polymeric mixtures that incorporate a blend of a first metallocene polypropylene and a second polypropylene are described. The first and second polypropylenes have a predetermined relationship for the melt temperature and the melt flow rate of the individual polypropylenes. Also described are fibers (including bicomponent fibers) and nonwoven materials made from the fibers where the fibers are extruded using the polymeric blends, and/or the polymeric mixtures.

Claims (13)

1. A polymeric blend comprising:
(a) a first polypropylene, preferably a metallocene polypropylene, having an average melt temperature T M1, preferably between 110° C and 135 °C, and a melt flow rate MFR1, preferably between 5 g/10 minutes and 25 g/10; and (b) a second polypropylene having an average melt temperature TM2, preferably between 135 °C and 165 °C, and a melt flow rate MFR2, preferably between 25 g/10 minutes and 50 g/10 minutes;
wherein said polymeric blend has an average melt temperature T Mb of from 125 °C
and 160 °C, a melt flow rate MFR b of from 10 g/10 minutes and 40 g/10 minutes characterized in that:
TM1 < TMb < TM2,, MFR1< MFR b < MFR2, and MFR2/MFR1 >= 2Ø
2. The polymeric blend according to Claim 1 wherein: TM2- TM1 >= 10 °C.
3. The polymeric blend according to Claim 1 wherein the weight ratio of said first polypropylene to said second polypropylene is from 1:4 to 4:1.
4. The polymeric alloy according to any of the proceeding claims wherein said first polypropylene is a metallocene random copolymer of propylene and ethylene.
5. The polymeric blend according to any of the proceeding claims wherein said first polypropylene is a copolymer of propylene and a comonomer selected from the group consisting of ethylene and a C4 to C20 .alpha.-olefin.
6. The polymeric alloy according to any of the proceeding claims wherein said second polypropylene is a copolymer formed by the polymerization of propylene and C4 to C20 .alpha.-olefin.
7. A polypropylene material having a first turbidity half time measured under quiescent conditions and a second turbidity half time measured at a wall shear stress of 0.11 MPa characterized in that a ratio of said second turbidity half time to said first turbidity half time is greater than 0.33, preferably said ratio is greater than 0.5..
8. A polymeric mixture comprising:
(i) a polymeric material according to any of the proceeding claims; and (ii) an adjunct.
9. A polymeric mixture according to Claim 8 wherein said adjunct comprises a polymer other than said first and second polypropylenes, wherein said polymer is selected from the group consisting of polymers that are insoluble in said polymeric blend and polymers that are soluble in said polymeric blend.
10. A fiber comprising a polymeric material according to any of the proceeding claims.
11. A fiber according to Claim 10 wherein said fiber is a bicomponent fiber and said bicomponent fiber comprises a first component that is a polymeric material according to any of the proceeding claims and further comprises a second component that is a compatible resin.
12. A nonwoven material comprising fibers according to Claim 11.
13. An absorbent article comprising a nonwoven material according to Claim 12.
CA2554103A 2004-01-26 2005-01-21 Fibers and nonwovens comprising polypropylene blends and mixtures Expired - Fee Related CA2554103C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US53929804P 2004-01-26 2004-01-26
US60/539,298 2004-01-26
PCT/US2005/001910 WO2005073309A1 (en) 2004-01-26 2005-01-21 Fibers and nonwovens comprising polypropylene blends and mixtures

Publications (2)

Publication Number Publication Date
CA2554103A1 true CA2554103A1 (en) 2005-08-11
CA2554103C CA2554103C (en) 2010-09-21

Family

ID=34826055

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2554103A Expired - Fee Related CA2554103C (en) 2004-01-26 2005-01-21 Fibers and nonwovens comprising polypropylene blends and mixtures

Country Status (13)

Country Link
US (3) US7491770B2 (en)
EP (1) EP1711557B1 (en)
JP (1) JP5179061B2 (en)
CN (1) CN1922262A (en)
AR (1) AR051345A1 (en)
AT (1) ATE416232T1 (en)
AU (1) AU2005207923B2 (en)
BR (1) BRPI0507127A (en)
CA (1) CA2554103C (en)
DE (1) DE602005011403D1 (en)
MX (1) MXPA06008387A (en)
WO (1) WO2005073309A1 (en)
ZA (1) ZA200605889B (en)

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US20050165173A1 (en) 2005-07-28
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US7960478B2 (en) 2011-06-14

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