EP0462188A1 - Fibres liees a deux composants en polypropylene/polyethylene - Google Patents

Fibres liees a deux composants en polypropylene/polyethylene

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Publication number
EP0462188A1
EP0462188A1 EP90904714A EP90904714A EP0462188A1 EP 0462188 A1 EP0462188 A1 EP 0462188A1 EP 90904714 A EP90904714 A EP 90904714A EP 90904714 A EP90904714 A EP 90904714A EP 0462188 A1 EP0462188 A1 EP 0462188A1
Authority
EP
European Patent Office
Prior art keywords
fibers
polyethylene
polypropylene
range
article
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.)
Withdrawn
Application number
EP90904714A
Other languages
German (de)
English (en)
Other versions
EP0462188A4 (en
Inventor
Zdravko Jezic
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of EP0462188A1 publication Critical patent/EP0462188A1/fr
Publication of EP0462188A4 publication Critical patent/EP0462188A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04—Homopolymers or copolymers of ethene
    • C09J123/08—Copolymers of ethene
    • C09J123/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C09J123/0815—Copolymers of ethene with aliphatic 1-olefins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/10—Homopolymers or copolymers of propene
    • C09J123/12—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
    • 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
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends

Definitions

  • Blends consisting of polypropylene and polyethylene are spun into fibers having improved bonding properties and lower shrinkage.
  • Polypropylene (PP) fibers and filaments are items of commerce and have been used in making products such as ropes, non-woven fabrics, and woven fabrics.
  • a “monofilament” (a.k.a. monofil) refers to an individual strand of denier greater than 15, usually greater than 30.
  • a "fine denier fiber or filament” refers to a strand of denier less than about 15.
  • multi-filament refers to simultaneously formed fine denier filaments spun as a bundle of fibers, generally containing at least 3, preferably at least about 15 to 100 fibers and can be several hundred or several thousand.
  • staple fibers refer to fine denier strands which have been formed at, or cut to, staple lengths of generally about 1 to about 8 inches.
  • extruded strand refers to an extrudate formed by passing polymer through a forming-orifice, such as a die.
  • a “fibril” refers to a superfine discrete filament embedded in a more or less continuous matrix.
  • thermoplastic polymer can be extruded as a coarse strand or monofilament, many of these, such as polyethylene and some ethylene copolymers, have not generally been found to be suitable for the making of fine denier fibers or multi-filaments at feasibly high production speeds.
  • LDPE low density polyethylene
  • I.C.I.-type polyethylene is a branched (i.e. non-linear) polymer, due to the presence of short-chains of
  • HPPE high pressure polyethylene
  • High density polyethylene is prepared using a coordination catalyst, such as a "Ziegler-type” or “Natta-type” or a “Phillips-type” chromium oxide compound. These have densities generally in the range of about 0.94 to about 0.98 gms/cc and are called
  • linear polymers due to the substantial absence of short polymer chains pendent from the main polymer backbone.
  • Linear low density polyethylene is prepared by copolymerizing ethylene with at least one ⁇ -olefin alkylene of C 3 to C 12 , especially at least one of
  • LLDPE is "linear", but has alkyl groups of the ⁇ -olefin pendent from the polymer chain. These pendent alkyl groups usually cause the density to be in about the same density range (0.88 to 0.94 gms/cc) as the LDPE; thus the name "linear low density
  • polyethylene or LLDPE is used in the industry in referring to these linear low density copolymers of ethylene.
  • Polypropylene (PP) is known to exist as atactic (largely amorphous), syndiotactic (largely crystal line), and isotactic (also largely crystalline), some of which can be processed into fine denier fibers. It is preferable, in the present invention, to use the largely crystalline types of PP grades, sometimes referred to as constant rheology ("CR"), which are suitable for
  • polyethylenes (more specifically LLDPE's) can be blended in a molten state with polypropylene in all proportions and then melt spun into fine denier fibers, some of which offer improved properties over polyethylene and polypropylene alone.
  • heat-bonded articles having excellent bond strength when bonded over a wide range of temperatures are prepared from fibers comprising a dynamically-mixed melt-spun blend of polypropylene (PP) and polyethylene (PE), said blend comprising a PP/PE ratio in the range of 0.6 to 1.5, said fiber having a substantially co-continuous domains morphology.
  • the heat-bonded articles including those wherein the above fibers are used alone or are blended with other fibers or other materials, can take a number of shapes and sizes including, e.g., various non-woven fabrics, composites and other items in which bonding into a unit is accomplished using the above-described fibers.
  • invention is not limited to only neat PP and PE, but also includes polymers containing additives that are often used in such polymers, such as, stabilizers, dyes, colorants, pigments, wetting agents, water-proofing agents, soil-proofing agents, and the like, so long as the additives have no substantial detrimental effect of the fiber-making ability of the polymers.
  • additives such as, stabilizers, dyes, colorants, pigments, wetting agents, water-proofing agents, soil-proofing agents, and the like, so long as the additives have no substantial detrimental effect of the fiber-making ability of the polymers.
  • Useful and novel fibers are prepared from blends of polypropylene (PP) and polyethylene (PE), especially linear low density ethylene copolymer (LLDPE) which have been melt blended in an intensive mixer just ahead of the melt spinning of the fibers when using ratios of PP and PE which result in co-continuous zones in the resulting fiber, said co-continuous zones being microscopically detectable in the sectioned fibers when cooled.
  • PP polypropylene
  • PE polyethylene
  • LLDPE linear low density ethylene copolymer
  • these co- continuous zones are produced when the ratio of PP/PE is in the range of 0.6 to 1.5, especially in the range of 0.8 to 1.2, most especially in the range of 0.9 to 1.1.
  • Such fibers have unexpectedly been found to exhibit appreciably stronger fiber-to-fiber bonds over a wide temperature range employed when heat bonding, as compared with PP alone.
  • the tenacity and softness of the fibers is improved over that of the polypropylene or the polyethylene alone.
  • the polyethylene for use in this invention may be LDPE or HDPE, but is preferably LLDPE.
  • the molecular weight of the polyethylene should be in the moderately high range, as indicated by a melt index, M.I., (a.k.a. melt flow rate, M.F.R.) value in the range of 12 to 120, preferably 20 to 100, most preferably 50 ⁇ 20 gms/10 min. as measured by ASTM D-1238(E) (190°C/2.16 Kg).
  • the comonomer ⁇ -olefin alkylenes in the upper end of the C 3 to C 12 range be used, especially 1-octene.
  • Butene (C 4 ) is preferred over propylene (C 3 ) but is not as preferred as 1-octene.
  • Mixtures of the alkylene comonomers may be used, such as butene/octene or hexene/octene in preparing the ethylene/alkylene copolymers.
  • the density of the LLDPE is dependent on the amount of, and the molecular size (i.e. the number of carbons in the alkylene molecule) of, the alkylene incorporated into the copolymer. The more alkylene comonomer used, the lower the density; also, the larger the alkylene comonomer, the lower the density.
  • an amount of alkylene comonomer is used which results in a density in the range of 0.88 to 0.94, most preferably 0.92 to 0.93 gms/cc.
  • An ethylene/octene copolymer having a density of about 0.925 gms/cc, an octene content in the range of 10 to 15 percent and a M.F.R. at or near 50 gms/10 min. is very effective for the purposes of this invention.
  • the method of melt-mixing is important due to generally acknowledged immiscibility of the PP and PE.
  • An intensive mixer-extruder is required which causes, in the blender, on the one hand, molten PE to be dispersed in the molten PP and the dispersion maintained until the mixture, as an extrudate, is expelled from the extruder.
  • molten PP is dispersed in molten PE when the amount of PE exceeds the amount of PP.
  • LLDPE having an M.F.R. in the range of about 12 to about 120 gms./10 min., and a crystalline PP, where the melt viscosity and melt strength are such that
  • ratio ranges are overlapping and are ambiguous in that some of the results obtained are from both
  • Polymer blends of PP and PE prepared in such a mixer are found to be useful, strong, and can be extruded into products where the immiscibility is not a problem.
  • the so-formed extrudate of a mixture which contains more PP than PE is spun and drawn into fibers, the molten PE globules become extended into fibrils within the polypropylene matrix.
  • An important, novel feature of the fibers is that the fibrils of PE are diverse in their orientation in the PP matrix. A larger fraction of PE particles is found close to the periphery of the cross-section of the fibers, and the remaining PE particles are spread in the inner portions of the fiber. The size of the PE particles is smallest at the
  • the PE fibrils near the periphery of the fiber's cross-section are diverse in the direction in which they are oriented or splayed, whereas close to the center of the fiber the orientation is mostly coaxial with the fiber.
  • these fibers will be referred to herein as blends consisting of PP as a continuous phase, and containing omni-directionally splayed PE fibrils as a dispersed phase. Microscopic examination reveals that the PE fibrils, when viewed in a cross-section of the biconstituent fiber, are more heavily populated near the outer surface than in the middle.
  • each PE fibril in the cross-section is dependent on whether one is viewing a PE fibril sliced at right angles to the axis of the PE fibril at that point or at a slant to the axis of the PE fibril at that point.
  • An oval or elongate shaped section indicates a PE fibril cut at an angle.
  • An elongate shaped section indicates a PE fibril which has skewed from axial alignment to a transverse position.
  • the mixer for preparing the molten blend of PP/PE is a dynamic mixer, especially one which provides 3-dimensional mixing. Insufficient mixing will cause non-homogeneous dispersion of PE in PP resulting in fibers of inconsistent properties, and tenacities lower than that of the corresponding PP fibers alone.
  • a 3-dimensional mixer suitable for use in the present invention is disclosed in a publication titled
  • the distribution of PE fibrils in a PP matrix are studied by using the following method:
  • the fibers are prepared for transverse sectioning by being attached to strips of adhesive tape and embedded in epoxy resin.
  • the epoxy blocks are trimmed and faced with a glass knife on a Sorvall MT-6000 microtome.
  • the blocks are soaked in a mixture of 0.2 gm ruthenium chloride
  • Sections taken from the first few microns, as well as approximately 20 microns from the end are examined in the TEM at magnifications of 250X to 66,000X.
  • the polyethylene component in the samples are preferentially stained by the ruthenium. Fiber sections microtomed near the end of the epoxy block may be overstained, whereas sections taken about 20 microns away from the end of the fibers are more likely to be properly
  • dimensionally stable fiber By the term “dimensionally stable” it is meant that upon storing a measured fiber for several months and then remeasuring the tenacity, one does not encounter a significant change in the tenacity. A change in tenacity indicates that stress relaxation has occurred and that fiber shrinkage has taken place. In many applications, such as in non-woven fabrics, such shrinkage is considered undesirable.
  • dimensionally stable fiber is one which undergoes very little, if any, change in tenacity during storage.
  • a ratio of polypropylene/polyethylene of about 70/30 is especially beneficial in obtaining a dimensionally stable fiber.
  • a greater draw ratio gives a higher tenacity than a lower draw ratio.
  • a draw ratio of, say 3.0 may yield a tenacity greater than PP alone, but a draw ratio of, say 2.0 may not give a greater tenacity than PP alone.
  • This example illustrates the broad temperature range over which strong bonds are obtained by using the biconstituent PP/PE fibers as compared with PP alone.
  • the fabric samples are of 1 ounce/yard 2 (about
  • the top calendar roll temperatures are maintained about 4°F (about 2°C) lower than the bottom calendar roll temperatures.
  • Cutting the 4" X 1" (10 ⁇ 2.54 cm) strips in the machine direction is done in such a way that the most uniform portions of the fabrics are used before pulling them apart on an Instron tensile tester.
  • the force to cause failure is measured as gram-force.
  • Each datapoint is the average of 8 sample, and a standard deviation if observed in the range of 5 percent to 15 percent.
  • LLDPE linear low density polyethylene
  • PP CR fiber grade
  • PP CR fiber grade
  • the 50/50 PP/PE biconstituent fibers are made into staple fibers used in making non-woven fabrics at a variety of embossed roll temperatures.
  • An example of a neat PP (without PE) is included as a "Control" for comparison.
  • Table IV below demonstrates the MD strip tensile strength (gram-force) needed to tear the non-woven fabric. The temperatures in the table are the embossed roll temperatures, adjusted to the nearest whole number.
  • PP/PE ratio range of about 1.5 (i.e. about 60/40) to about 0.6 (i.e. about 40/60) is operable, with a ratio somewhere around 50/50 being most preferable.
  • Example 1 additional data is collected for LLDPE (12 MFR, 1-octene, 0.935 density) in Table II, LLDPE (98 MFR, 1-octene, 0.936 density) in Table III, and LLDPE (25 MFR, propene, 0.955 density) in Table IV. These tables show the improved results obtained when operating within the range of 40/60 to 60/40 PE/PP ratio.
  • Fibers of PP/LLDPE of various ratios between the range 60/40 to 40/60 are tested in comparison with PP fibers alone and LLDPE alone, by being subjected to boiling water for 5 minutes and the shrinkage measured. It is found that in this range there is little or no increase in shrinkage when compared with PP. Thus the benefits of adding LLDPE to PP are not substantially compromised by the greater tendency of the neat LLDPE fibers to undergo shrinkage in boiling water.
  • biconstituent PP/PE fibers are useful in blends with other fibers, both natural and synthetic, especially when staple fibers are blended and then heat-bonded at temperatures favorable for the particular blend being employed.
  • the heat-bondable PP/PE fibers can be employed as the bonding agent when in admixture with, or place between, other materials which are not
  • thermoplastic in or near melt or softening point of the PP/PE biconstituent.
  • Other materials such as
  • cellulosic fibers metal fibers, mineral fibers, wood fibers, high melting synthetic fibers, and other
  • particulate material can be mixed with, and thermally bonded into a unit by, the PP/PE biconstituent fibers.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Filaments (AREA)
  • Nonwoven Fabrics (AREA)
  • Multicomponent Fibers (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

On prépare des articles thermoliés à l'aide, en tant que matière de thermoliaison, de fibres à deux composants PP/PE, comprenant du polypropylène comme première phase et du polyéthylène comme seconde phase. Lesdites fibres à deux composants assurent une meilleure ténacité et une meilleure manipulation lorsqu'on les compare au polypropylène seul. Les fibres à deux composants en PP/PE ayant des zones co-continues prèsentent une liaison thermique plus résistante que le PP seul, et ce sur une plage de températures de liaison thermique beaucoup plus longue que celle du PP seul. On obtient des caractéristiques de rétrécissement favorables.
EP19900904714 1989-03-07 1990-03-06 Biconstituent polypropylene/polyethylene bonded fibers Withdrawn EP0462188A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32026389A 1989-03-07 1989-03-07
US320263 1989-03-07

Publications (2)

Publication Number Publication Date
EP0462188A1 true EP0462188A1 (fr) 1991-12-27
EP0462188A4 EP0462188A4 (en) 1992-06-03

Family

ID=23245609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900904714 Withdrawn EP0462188A4 (en) 1989-03-07 1990-03-06 Biconstituent polypropylene/polyethylene bonded fibers

Country Status (9)

Country Link
EP (1) EP0462188A4 (fr)
JP (1) JPH04506097A (fr)
KR (1) KR920700262A (fr)
AU (1) AU641147B2 (fr)
BR (1) BR9007198A (fr)
CA (1) CA2011599A1 (fr)
FI (1) FI914221A0 (fr)
PT (1) PT93361A (fr)
WO (1) WO1990010672A1 (fr)

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WO2006050833A1 (fr) 2004-11-09 2006-05-18 Schaeffler Kg Rouleau tripode

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US5382400A (en) 1992-08-21 1995-01-17 Kimberly-Clark Corporation Nonwoven multicomponent polymeric fabric and method for making same
US5336552A (en) 1992-08-26 1994-08-09 Kimberly-Clark Corporation Nonwoven fabric made with multicomponent polymeric strands including a blend of polyolefin and ethylene alkyl acrylate copolymer
US5405682A (en) 1992-08-26 1995-04-11 Kimberly Clark Corporation Nonwoven fabric made with multicomponent polymeric strands including a blend of polyolefin and elastomeric thermoplastic material
CA2092604A1 (fr) 1992-11-12 1994-05-13 Richard Swee-Chye Yeo Fils polymeres hydrophiles composites; non-tisses obtenus avec ces fils
US5482772A (en) 1992-12-28 1996-01-09 Kimberly-Clark Corporation Polymeric strands including a propylene polymer composition and nonwoven fabric and articles made therewith
US5554437A (en) * 1993-04-06 1996-09-10 Hercules Incorporated Gamma-sterilizable barrier fabrics
US5554441A (en) * 1993-04-16 1996-09-10 Hercules Incorporated Random macrodomain multiconstituent fibers, their preparation, and nonwoven structures from such fibers
CA2120104A1 (fr) * 1993-04-19 1994-10-20 Randall E. Kozulla Fibres a multiconstituants, et structures non tissees produites a partir de ces fibres
US5460884A (en) * 1994-08-25 1995-10-24 Kimberly-Clark Corporation Soft and strong thermoplastic polymer fibers and nonwoven fabric made therefrom
US5921973A (en) * 1994-11-23 1999-07-13 Bba Nonwoven Simpsonville, Inc. Nonwoven fabric useful for preparing elastic composite fabrics
US6417121B1 (en) 1994-11-23 2002-07-09 Bba Nonwovens Simpsonville, Inc. Multicomponent fibers and fabrics made using the same
US5543206A (en) * 1994-11-23 1996-08-06 Fiberweb North America, Inc. Nonwoven composite fabrics
US6417122B1 (en) 1994-11-23 2002-07-09 Bba Nonwovens Simpsonville, Inc. Multicomponent fibers and fabrics made using the same
US6420285B1 (en) 1994-11-23 2002-07-16 Bba Nonwovens Simpsonville, Inc. Multicomponent fibers and fabrics made using the same
US6207602B1 (en) 1994-11-23 2001-03-27 Bba Nonwovens Simpsonville, Inc. Nonwoven fabrics and fabric laminates from multiconstituent polyolefin fibers
AT404365B (de) * 1996-06-28 1998-11-25 Asota Gmbh Recyclierbare gewebe aus polyolefingarnen
US6589892B1 (en) 1998-11-13 2003-07-08 Kimberly-Clark Worldwide, Inc. Bicomponent nonwoven webs containing adhesive and a third component
CN116695280B (zh) * 2023-06-07 2024-04-12 清源创新实验室 一种三维螺旋结构弹性es纤维及其制备方法

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DE3544523A1 (de) * 1984-12-21 1986-06-26 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren zur herstellung von bikomponentenfasern, daraus hergestellte fasern und deren verwendung
EP0192897A2 (fr) * 1984-12-27 1986-09-03 E.I. Du Pont De Nemours And Company Mélange de polyéthylène et de polypropylène
EP0260974A2 (fr) * 1986-09-19 1988-03-23 The Dow Chemical Company Fibres à deux composants contenant du polypropylène et du polyéthylène

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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3544523A1 (de) * 1984-12-21 1986-06-26 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Verfahren zur herstellung von bikomponentenfasern, daraus hergestellte fasern und deren verwendung
EP0192897A2 (fr) * 1984-12-27 1986-09-03 E.I. Du Pont De Nemours And Company Mélange de polyéthylène et de polypropylène
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* Cited by examiner, † Cited by third party
Title
CHEMIEFASERN/TEXTILINDUSTRIE vol. 39, no. 10, 1989, FRANKFURT/MAIN pages 1074 - 1075; PUSKO JEZIC, Z.: 'Neue Entwicklungen bei Polyethylen/Polypropylen Polymerblends' *
See also references of WO9010672A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006050833A1 (fr) 2004-11-09 2006-05-18 Schaeffler Kg Rouleau tripode

Also Published As

Publication number Publication date
PT93361A (pt) 1990-11-07
AU5271390A (en) 1990-10-09
FI914221A0 (fi) 1991-09-06
EP0462188A4 (en) 1992-06-03
WO1990010672A1 (fr) 1990-09-20
JPH04506097A (ja) 1992-10-22
BR9007198A (pt) 1992-02-18
KR920700262A (ko) 1992-02-19
CA2011599A1 (fr) 1990-09-07
AU641147B2 (en) 1993-09-16

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