EP1356142B1 - Nicht nachverstreckte polyolefinfasern hoher festigkeit - Google Patents

Nicht nachverstreckte polyolefinfasern hoher festigkeit Download PDF

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EP1356142B1
EP1356142B1 EP01991772A EP01991772A EP1356142B1 EP 1356142 B1 EP1356142 B1 EP 1356142B1 EP 01991772 A EP01991772 A EP 01991772A EP 01991772 A EP01991772 A EP 01991772A EP 1356142 B1 EP1356142 B1 EP 1356142B1
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propylene
polymers
polyolefin fibers
postdrawn
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French (fr)
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EP1356142A1 (de
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Marijke Verpoest
Gunhild Rohne
Markus Gahleitner
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Borealis Polyolefine GmbH
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Borealis AG
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    • 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • 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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene

Definitions

  • the invention relates to non-postdrawn polyolefin fibers with high tenacity from propylene polymers as well as to a process for producing them.
  • Fibers from propylene polymers are known (Ullmann's Encyclopedia of Industrial Chemistry, Vol. A10, p. 536-542, Weinheim 1987).
  • Known methods for producing high tenacity fibers are oxidative chain scission degradation of hot spun fibers in conjunction with a delayed quench step (U.S. 5 281 378, US 5 318 735), the use of reactor-grade propylene polymers produced by single-site catalysis (EP 0 854 212) for producing the fibers, or the use of blends consisting of mixtures of propylene homopolymers, propylene copolymers and heterophasic propylene polymers being stabilized with organic phosphites, phenolic antioxidants or HALS-compounds for producing the fibers (EP 0 632 147).
  • EP 0 878 567 discloses non post-drawn polyolefin fibers having high tenacities and tensile elongations without specifying isotacticity and crystallinity of the used polypropylenes.
  • the optional addition of nucleating agents is predicted to result in a decrease of the fiber's tenacity.
  • EP 0 569 860 discloses spunbond webs and nonwoven fabric laminates thereof made from polypropylene compositions having a MFI greater than 12 and comprising 0.1 t 0.3 wt% of a nucleating agent. Isotacticity and crystallinity of the used polypropylenes are not specified.
  • the use of nucleating agents does not increase the fiber tenacity but improves the bonding strength of fabric laminates formed
  • non-postdrawn polyolefin fibers with high tenacity values of 2,0 to 5,0 cN/dtex consisting essentially of predominantly isotactic propylene polymers having a crystallisation temperature of > 116 °C (DSC) and 0,001 to 2 % by weight, based on the propylene polymers used, of ⁇ -nucleating agents which are selected from the group consisting of polymers which are different from isotactic propylene polymers, which are selected from the group consisting of tetrafluoroethylene polymers, polycarbonates, polybutyleneterephthalate, polyethyleneterephthalate, 3-methylbutene polymers, 4-methylpentene-1-polymers, syndiotactic propylene polymers, polyphenyleneoxides, propylene-methylbutene copolymers, styrene-acrylonitrile copolymers, polyallyltrimethylsilanes and hydrolysed
  • the predominantly isotactic propylene polymers are essentially consisting of
  • polyolefin mixtures b) of crystalline copolymers and elastic copoiymers, optionaiiy contained in the non-postdrawn polyolefin fibers are polymer mixtures described, for example, in the European patents 0 400 333 or 0 472 946.
  • the largely amorphous polypropylenes or propylene copolymers c), optionally contained in the non-postdrawn polyolefin fibers are, in particular, stereo block polypropylenes, which are prepared, for example, by using highly active Ziegler-Natta catalysts fixed on a metal oxide (Collette, J., Macromolecules 22 (1989), 3851 - 3858; German patent 28 30 160) or soluble Ziegler-Natta catalysts (de Candia, F., Makromol. Chem. 189 (1988), 815 - 821), optionally with subsequent reactive modification (European patent 636863) and/or degradation (European patent 640 850).
  • highly active Ziegler-Natta catalysts fixed on a metal oxide Coldlette, J., Macromolecules 22 (1989), 3851 - 3858; German patent 28 30 160
  • soluble Ziegler-Natta catalysts de Candia, F., Makromol. Chem. 189 (1988), 815 - 8
  • non-isotactic propylene homopolymers d optionally contained in the non-postdrawn polyolefin fibers are the products described p.e. in the European patent 0 475 307 or in the European patent 0 475 308.
  • the modified propylene polymers e), optionally contained in the non-postdrawn polyolefin fibers, can be produced by any number of processes, e.g. by treatment of the unmodified propylene polymer with thermal decomposing radical-forming agents and/or by treatment with ionizing radiation, where both treatments may optionally be accompanied or followed by a treatment with bi- or multifunctionally unsaturated monomers, e.g. butadiene, isoprene, dimethylbutadiene or divinylbenzene. Further processes may be suitable for the production of the modified propylene polymer, provided that the resulting modified propylene polymer meets the characteristics given above.
  • modified propylene polymers e) optionally contained in the non-postdrawn polyolefin fibers are, in particular:
  • modified polypropylenes have melt indexes of 0.5 to 40 g/10 min at 230 °C/2.16 kg and preferably of 2 to 5 g/10 min at 230 °C/2.16 kg, and a ratio of the intrinsic viscosity of the modified propylene polymer to the intrinsic viscosity of the basic unmodified polymer (component a) with largely the same weight average molecular weight of 0,2 to 0,95.
  • modified poylpropylene polymers normally exhibit strain hardening behaviour as usually defined in the literature.
  • tetrafluoroethylene polymers optionally contained in the non-postdrawn poly-olefin fibers, are polytetrafluoroethylene, tetrafluoroethylene propylene copolymers and tetrafluoroethylene isobutylene copolymers.
  • polycarbonates optionally contained in the non-postdrawn polyolefin fibers
  • polycarbonates are poly(4,4'-isopropylidenediphenylene carbonate) and copolycondensates based on 4,4'-isopropylidenebisphenol, 4,4'-tetrabromoisopropylidenebisphenol and/or 4,4'-hexabromoiso-propylidenebisphenol.
  • 3-methylbutene polymers optionally contained in the non-postdrawn polyolefin fibers, are poly-3-methylbutene, 3-methylbutene 1-butene copolymers or 3-methylbutene isobutylene copolymers.
  • 4-methylpentene-1-polymers optionally contained in the non-postdrawn poly-olefin fibers, are poly-4-methylpentene-1, 4-methylpentene-1 styrene copolymers or 4-methylpentene-1 propylene copolymers.
  • polyphenyleneoxides optionally contained in the non-postdrawn polyolefin fibers, are poly-2,6-dimethylphenyleneoxide, poly-2,6-diisopropylphenyleneoxide or poly-2,6-diphenylphenyleneoxide.
  • C 7 -C 13 benzoic acid derivatives optionally contained in the non-postdrawn polyolefin fibers, are benzoic anhydride, o-toluic acid and 2,6-dimethylbenzoic acid.
  • sorbitol derivatives optionally contained in the non-postdrawn polyolefin fibers, are di-(p-methylbenzylidene) sorbitol, trinaphthylidenesorbitol and naphthylmethylenesorbitol.
  • Examples for salts of C 7 -C 13 aromatic carboxylic acids are sodium benzoate and tertiary-butylbenzoic acid aluminium salt.
  • a preferred aromatic carboxylic acid is sodium benzoate.
  • Examples for phosphoric acid derivatives are ammonium polyphosphate, cyclic calcium phosphate compounds, sodium-2,2'-methylenebis-(4,6-di-tert.-butylphenyl)phosphate and bis-(tertiary-butyl) phos-phoric acid sodium salt.
  • a preferred cyclic calcium phosphate compound, optionally contained in the non-postdrawn polyolefin fibers, is bis(2,6-di-tert.butyl-1-hydroxy)methane calcium phosphate.
  • a further ⁇ -nucleation method, which is also suitable, is a special reactor technique, where the catalyst is prepolymerised with monomers like vinylcyclohexane (VCH). This method is described in greater detail in e.g. EP 0 316 187 A2.
  • VCH vinylcyclohexane
  • Preferred auxiliary materials are 0.01 to 2.5 % by weight of stabilizers and/or 0.01 to 1 % by weight of processing aids and/or, optionally, 0. 1 to 1 % by weight of antistatic agents and/or 0.2 to 3 % by weight of pigments and/or 2 to 20 % by weight of flame retardants, in each case based on the sum of the polypropylenes.
  • the stabilizers contained in the inventive non-postdrawn polyolefin fibers, preferably are mixtures of 0.01 % to 0.6 % by weight of phenolic antioxidants, 0.01 % to 0.6 % by weight of 3-arylbenzofuranones, 0.01 % to 0.6 % by weight of processing stabilizers based on phosphites, 0.01 % to 0.6 % by weight of high temperature stabilizers based on disulfides and thioethers and/or 0.01 % to 0.8 % by weight of sterically hindered amines (HALS).
  • HALS sterically hindered amines
  • Suitable phenolic antioxidants are 2-t-butyl-4,6-dimethylphenol, 2,6-di-t-butyl-4-methylphenol, 2,6-di-t-butyl-4-isoamylphenol, 2,6-di-t-butyl-4-ethylphenol, 2-t-butyl-4,6-diisopropylphenol, 2,6-dicyclopentyl-4-methylphenol, 2,6-di-t-butyl-4-methoxymethylphenol, 2-t-butyl-4,6-dioctadecylphenol, 2,5-di-t-butylhydroquinone, 2,6-di-t-butyl-4,4-hexadecyloxyphe-nol, 2,2'-methylene-bis(6-t-butyl-4-methylphenol), 4,4'-thio-bis-(6-t-butyl-2-methylphenol), octade-cyl 3
  • bis-2,2,6,6-tetramethyl-4-piperidyl sebacate and/or poly-1,1,3,3-tetra-methylbutyl)-imino)-1,3,5-triazine-2,4-diyl)(2,2,6,6-tetramethylpiperidyl)-amino)-hexamethyle-ne-4-(2,2,6,6-tetramethyl)piperidyl)-imino) are particularly suitable.
  • the inventive non-postdrawn polyolefin fibers may contain calcium stearate, magnesium stearate and/or waxes.
  • the fibres comprise conventional additives.
  • the predominantly isotactic propylene polymers comprise from 5 - 100 ppm of particles of inorganic oxides having a particle diameter from 0.05 - 10 ⁇ m.
  • Inorganic oxides selected from the group consisting of ZnO, SnO, MgO, Al 2 O 3 , SiO 2 , TiO 2 , ZrO 2 , HfO 2 and mixtures thereof in amounts of from 20 -40 ppm are preferred. Still more preferred are particles of inorganic oxides of Al 2 O 3 and/or SiO 2 and/or MgO having a particle diameter from 0.5 to 2.0 ⁇ m.
  • a still further object of the present invention is a process for preparing the inventive non-postdrawn polyolefin fibers having tenacity values of 2,0 to 5,0 cN/dtex , characterized by melting of predominantly isotactic propylene polymers having a crystallisation temperature of > 116 °C (DSC) and 0,001 to 2 % by weight, based on the propylene polymers used, of ⁇ -nucleating agents which are selected from the group consisting of polymers which are different from isotactic propylene polymers, which are selected from the group consisting of tetrafluoroethylene polymers, polycarbonates, polybutyleneterephthalate, polyethyleneterephthalate, 3-methylbutene polymers, 4-methylpentene-1-polymers, syndiotactic propylene polymers, polyphenyleneoxides, propylene-methylbutene copolymers, styrene-acrylonitrile copolymers, polyallyltrimethyls
  • plasticising extruder for melting the mixtures especially single screw extruders or twin screw extruders with screw length of 28 to 30 D, preferably with flange-mounted static or dynamic mixers, are suitable. Sheer speeds can be adjusted to values of 10 2 /sec to 10 3 /sec by controlling the temperature and the rpm.
  • melt pumps preferably heated with biphenyl, are used for the melts, heated to 240° to 310 °C.
  • the hot spun fibers are taken up by high speed galettes, cabling the fibers into multifilament yarns and winding up the non-postdrawn polyolefin fibers-containing yarns.
  • non-postdrawn polyolefin fibers are the manufacturing of nonwovens, preferred spunbond, carded or air bonded nonwovens; textile applications, carpets.
  • Fig. 1 is the extruder, 2 the extrusion pump, 3 the spinneret, 4 the blast shaft, 5 the pull-off equipment and 6 the winder.
  • extruder (1) for melting the polyolefin mixtures a single screw extruder is used with a high homogenizing effect with a screw length of 34 D and a flange-mounted static mixer.
  • the spinneret (3) has an internal diameter of 0.5 mm.
  • the pulling-off can be accomplished directly by means of the winder (6). Possible pull-off speeds are 1000 to 6000 m/min.
  • the melt indices for propylene polymers were measured with a load of 2.16 kg at 230 °C.
  • the melt index is that quantity of polymer in grams which the test apparatus standardized to DIN 53 735 extrudes within 10 minutes at a temperature of 230 °C under a weight of 2.16 kg.
  • a dry mixture consisting of 85 % by weight of a metallocene propylene homopolymer (melt index of 6.2 g/10 minutes at 230 °C/2.16 kg), 13 % by weight of a propylene ethylene copolymer (melt index of 4,2 g/10 minutes at 230 °C/2.16 kg, ethylene content 4,8 % by weight), 2 % by weight of a 4-methylpentene-1 propylene copolymer (melt index of 0,25 g/10 minutes at 230 °C/5 kg, propylene content 6,8 % by weight), and as adjuvants, the percentages in each case based on the sum of the propylene polymers, 0.25 % by weight of 2-t-butyl-4,6-diisopropylphenol, 0.2 % by weight of bis-2,2,6,6-tetramethyl-4-piperidyl sebacate and 0.2 % by weight of calcium
  • the blend is melted in the extruder at a mass temperature of 275 °C.
  • the melt is transferred by the extrusion pump to the spinneret and, at a spinneret temperature of 290 °C, drawn off through the blast shaft, which is cooled with compressed air at a temperature of 20 °C, and wound up at a speed of 4000 m/min.
  • the resulting polypropylene fiber which is not postdrawn, has a tenacity of 3.6 cN/dtex and a tensile elongation of 105 %.
  • a dry mixture consisting of 90 % by weight of a metallocene propylene homopolymer (melt index of 6.2 g/10 minutes at 230 °C/2.16 kg), 5 % by weight of a random heterophasic propylene ethylene blockcopolymer (melt index of 8 g/10 minutes at 230 °C/2.16 kg, ethylene content 33 mol%) 5 % by weight of a propylene ethylene copolymer (melt index of 4,2 g/10 minutes at 230 °C/2.16 kg, ethylene content 4,8 % by weight) and, the percentages in each case based on the sum of the propylene polymers, 0,2 % by weight of dibenzylidene sorbitol, 0.25 % by weight of 3(3,5-di-t-butyl-4-hydroxyphenyl)proplonate, 0.2 % by weight of bis-2,2,6,6-tetra
  • the blend is melted in the extruder at a mass temperatureof 280 °C.
  • the melt is transferred by the extrusion pump to the spinneret and, at a spinneret temperature of 285 °C, drawn off through the blast shaft, which is cooled with compressed air at a temperature of 20 °C, and wound up at a speed of 3500 m/min.
  • the resulting polypropylene fiber which is not postdrawn, has a tenacity of 3.2 cN/dtex and a tensile elongation of 122 %.
  • a dry mixture consisting of 85 % by weight of a metallocene propylene homopolymer (melt index of 6.2 g/10 minutes at 230 °C/2.16 kg), 5 % of a propylene homopolymer having strain hardening behavior (melt index of 3,5 g/10 minutes at 230 °C/2.16 kg, strain hardening behaviour as usually defined in the literature), 10 % by weight of a Ziegler-Natta propylene homopolymer with high stereospecifity (melt index of 2,5 g/10 minutes at 230 °C/2.16 kg), and, the percentages in each case based on the sum of the propylene polymers, 0,35 % by weight of sodium-2,2'-methylenebis-(4,6-di-tert.-butylphenyl)phosphate, 0.25 % by weight of 2-t-butyl-4,6-diisopropylphenol, 0.2
  • the blend is melted in the extruder at a mass temperature of 285 °C.
  • the melt is transferred by the extrusion pump to the spinneret and, at a spinneret temperature of 290 °C, drawn off through the blast shaft, which is cooled with compressed air at a temperature of 20 °C, and wound up at a speed of 3000 m/min.
  • the resulting polypropylene fiber which is not postdrawn, has a tenacity of 3.0 cN/dtex and a tensile elongation of 137 %.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Artificial Filaments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Nonwoven Fabrics (AREA)

Claims (13)

  1. Nichtnachverstreckte Polyolefinfasern mit hohen Feinheitsfestigkeitswerten von 2,0 bis 5,0 cN/dtex, im wesentlichen bestehend aus überwiegend isotaktischen Propylenpolymeren mit einer Kristallisationstemperatur von >116°C (DSC) und 0,001 bis 2 Gew.-%, bezogen auf die eingesetzten Propylenpolymere, an α-Nukleierungsmitteln, ausgewählt aus der Gruppe bestehend aus
    von isotaktischen Propylenpolymeren verschiedenen Polymeren, ausgewählt aus der Gruppe, bestehend aus
    Tetrafluorethylenpolymeren, Polycarbonaten, Polybutylenterephthalat, Polyethylenterephthalat, 3-Methylbutenpolymeren, 4-Methylpenten-1-polymeren, syndiotaktischen Propylenpolymeren, Polyphenylenoxiden, Propylenmethylbutencopolymeren,
    Styrolacrylnitrilcopolymeren, Polyallyltrimethylsilanen und hydrolysierten Ethylenvinylacetatcopolymeren,
    und Benzoesäure, Benzoesäurederivaten, Dibenzylidensorbit, Derivaten des Sorbits, Diphenylglycin, Salzen von C6-C18-aliphatischen Carbonsäuren, Salzen von C7-C13-aromatischen Carbonsäuren, Phosphorsäurederivaten, Talk und deren Mischungen.
  2. Nichtnachverstreckte Polyolefinfasern nach Anspruch 1, bei denen die überwiegend isotaktischen Propylenpolymere im wesentlichen bestehen aus
    (a) 50-100 Gew.-% Propylenpolymeren, hergestellt unter Anwendung von Ziegler-Natta-Katalysatoren oder Metallocenkatalysatoren, vorzugsweise Propylenhomopolymere und/oder Copolymere von Propylen, Ethylen und/oder α-Olefinen mit 4 bis 18 Kohlenstoffatomen und einem Propylenanteil von 80,0 bis 99,9 Gew.-% in Form von statistischen Copolymeren, Blockcopolymeren und/oder statistischen Blockcopolymeren, mit Schmelzindizes von 0,5 bis 40 g/10 min bei 230°C/2,16 kg,
    (b) 0-50 Gew.-% einer Polyolefinmischung mit einem Mw/Mn-Verhältnis von 2 bis 6 und einem Schmelzindex von 0,5 bis 40 g/10 min bei 230°C/2,16 kg, im wesentlichen bestehend aus
    (b1) 60 bis 98 Gew.-% eines kristallinen Copolymers aus 85 bis 95 Gew.-% Propylen und 15 bis 0,5 Gew.-% Ethylen und/oder eines α-Olefins der allgemeinen Formel CH2 = CHR, wobei R eine lineare oder verzweigte Alkylgruppe mit 2 bis 8 Kohlenstoffatomen bedeutet,
    (b2) 2 bis 40 Gew.-% eines elastischen Copolymers aus 20 bis 70 Gew.-% Ethylen und 80 bis 30 Gew.-% Propylen und/oder eines α-Olefins der allgemeinen Formel CH2CHR, wobei R eine lineare oder verzweigte Alkylgruppe mit 2 bis 8 Kohlenstoffatomen bedeutet,
    (c) 0-30 Gew.-% hochamorpher Polypropylene oder Propylencopolymere mit einem Anteil an kristallinem Polypropylen oder kristallinem Propylencopolymer von weniger als 10 Gew.-%, einer Schmelzenthalpie von weniger als 40 J/g und einem Schmelzindex von 0,5 bis 40 g/10 min bei 230°C/2,16 kg, wobei es sich bei dem weitgehend amorphen Polypropylen um ein Homopolymer des Propylens und/oder ein Copolymer des Propylens aus mindestens 80 Molprozent Propylen und höchstens 20 Molprozent mindestens eines α-Olefins der allgemeinen Formel CH2CHR, wobei R eine lineare oder verzweigte Alkylgruppe mit 2 bis 8 Kohlenstoffatomen bedeutet, handelt,
    (d) 0-10 Gew.-% nichtisotaktischer Propylenhomopolymere mit einem Schmelzpunkt von 145° bis 165°C, einer Schmelzviskosität von 200 Pa.s (200 000 cps) bei 190°C und einer Kristallisationswärme von 4 bis 10 Kalorien pro Gramm sowie einem in Diethylether löslichen Anteil von 35 bis 55 Gew.-%,
    (e) 0-30 Gew.-% modifizierter Propylenhomopolymere und/oder Propylencopolymere mit Schmelzindizes von 0,5 bis 40 g/10 min bei 230°C/2,16 kg und einem Quotienten aus der Grenzviskosität des modifizierten Propylenpolymers und der Grenzviskosität des nichtmodifizierten Ausgangspolymers (Komponente a) mit weitgehend gleichem gewichtsmittleren Molekulargewicht von 0,2 bis 0,95.
  3. Nichtnachverstreckte Polyolefinfasern nach Anspruch 1 oder 2, bei denen zusätzlich herkömmliche Additive enthalten sind.
  4. Nichtnachverstreckte Polyolefinfasern nach Anspruch 3, bei denen als herkömmliche Additive 0,01 bis 2,5 Gew.-% an Stabilisatoren, 0,01 bis 1 Gew.-% an Verarbeitungshilfsmitteln und gegebenenfalls 0,1 bis 1 Gew.-% an Antistatika, 0,2 bis 3 Gew.-% an Pigmenten und 2 bis 20 Gew.-% an Flammschutzmitteln enthalten sind, wobei sich die Prozentangaben jeweils auf die Summe der Polypropylene beziehen.
  5. Nichtnachverstreckte Polyolefinfasern nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß in den überwiegend isotaktischen Propylenpolymeren 5-100 ppm an Teilchen anorganischer Oxide mit einem Teilchendurchmesser von 0,05-10 µm enthalten sind.
  6. Nichtnachverstreckte Polyolefinfasern nach Anspruch 5, dadurch gekennzeichnet, daß in den überwiegend isotaktischen Propylenpolymeren 20-40 ppm an anorganischen Teilchen aus der Gruppe ZnO, SnO, MgO, Al2O3, SiO2, TiO2, ZrO2, HfO2 und deren Mischungen enthalten sind.
  7. Nichtnachverstreckte Polyolefinfasern nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, daß die Teilchen aus anorganischen Oxiden Al2O3 und/oder SiO2 und/oder MgO mit einem Teilchendurchmesser von 0,5 bis 2,0 µm sind.
  8. Verfahren zur Herstellung nichtnachverstreckter Polyolefinfasern gemäß einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß man überwiegend isotaktische Propylenpolymere gemäß einem der Ansprüche 1 bis 7 und 0,001 bis 2 Gew.-% bezogen auf die eingesetzten Propylenpolymere, an α-Nukleierungsmitteln gemäß Anspruch 1 bei Temperaturen von 220 bis 325°C aufschmilzt, die Schmelze Spinndüsen zuführt, die Schmelze zu Fasern ausformt und anschließend die Fasern kühlt und mit Geschwindigkeiten von 1000 - 6000 m/min aufnimmt.
  9. Verfahren zur Herstellung nichtnachverstreckter Polyolefinfasern nach Anspruch 8, dadurch gekennzeichnet, daß man mit schnellaufenden Galetten aufnimmt, die Fasern zu multifilen Garnen zusammenführt und die die nicht nachverstreckten Polyolefinfasern enthaltenden Garne aufwickelt.
  10. Verwendung nichtnachverstreckter Polyolefinfasern gemäß einem der Ansprüche 1 bis 7 zur Herstellung von Vliesstoffen, für textile Anwendungen sowie Teppiche.
  11. Nichtnachverstreckte Polyolefinfasern nach Anspruch 2, bei denen die Propylenpolymere gemäß 2 (a) Schmelzindizes von 1 bis 5 g/10 min bei 230°C/2,16 kg aufweisen.
  12. Nichtnachverstreckte Polyolefinfasern nach Anspruch 2, bei denen die modifizierten Propylenhomopolymere und/oder Propylencopolymere gemäß 2 (e) Schmelzindizes von 2 bis 5 g/10 min bei 230°C/2,16 kg aufweisen.
  13. Verwendung nichtnachverstreckter Polyolefinfasern nach Anspruch 10, dadurch gekennzeichnet, daß es sich bei den Vliesstoffen um Spinnvliese, kardierte oder durch Airbonding verbundene Vliesstoffe handelt.
EP01991772A 2000-12-07 2001-12-04 Nicht nachverstreckte polyolefinfasern hoher festigkeit Expired - Lifetime EP1356142B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01991772A EP1356142B1 (de) 2000-12-07 2001-12-04 Nicht nachverstreckte polyolefinfasern hoher festigkeit

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP00126834A EP1213375A1 (de) 2000-12-07 2000-12-07 Nicht nachverstreckte Polyolefinfasern mit hoher Festigkeit
EP00126834 2000-12-07
PCT/EP2001/014155 WO2002046502A1 (en) 2000-12-07 2001-12-04 Non-postdrawn polyolefin fibers with high tenacity
EP01991772A EP1356142B1 (de) 2000-12-07 2001-12-04 Nicht nachverstreckte polyolefinfasern hoher festigkeit

Publications (2)

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EP1356142A1 EP1356142A1 (de) 2003-10-29
EP1356142B1 true EP1356142B1 (de) 2006-04-19

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EP00126834A Withdrawn EP1213375A1 (de) 2000-12-07 2000-12-07 Nicht nachverstreckte Polyolefinfasern mit hoher Festigkeit
EP01991772A Expired - Lifetime EP1356142B1 (de) 2000-12-07 2001-12-04 Nicht nachverstreckte polyolefinfasern hoher festigkeit

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EP00126834A Withdrawn EP1213375A1 (de) 2000-12-07 2000-12-07 Nicht nachverstreckte Polyolefinfasern mit hoher Festigkeit

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EP (2) EP1213375A1 (de)
AT (1) ATE323790T1 (de)
AU (1) AU2002231649A1 (de)
DE (1) DE60118978T2 (de)
ES (1) ES2260320T3 (de)
WO (1) WO2002046502A1 (de)

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US6998081B2 (en) 2001-12-21 2006-02-14 Milliken & Company Method of producing low-shrink polypropylene tape fibers
US6887567B2 (en) * 2002-11-02 2005-05-03 Milliken & Company Low-shrink polypropylene tape fibers comprising high amounts of nucleating agents
US6759124B2 (en) 2002-11-16 2004-07-06 Milliken & Company Thermoplastic monofilament fibers exhibiting low-shrink, high tenacity, and extremely high modulus levels
US6863976B2 (en) 2002-11-16 2005-03-08 Milliken & Company Polypropylene monofilament and tape fibers exhibiting certain creep-strain characteristics and corresponding crystalline configurations
US7041368B2 (en) 2002-11-17 2006-05-09 Milliken & Company High speed spinning procedures for the manufacture of high denier polypropylene fibers and yarns
CN1297697C (zh) * 2003-06-12 2007-01-31 中国石油化工股份有限公司 阻燃聚丙烯腈纤维及其制造方法
US6849330B1 (en) 2003-08-30 2005-02-01 Milliken & Company Thermoplastic fibers exhibiting durable high color strength characteristics
CN101519810B (zh) * 2004-01-01 2011-04-06 帝斯曼知识产权资产管理有限公司 用于制备高性能聚乙烯多丝纱线的方法
EP2034056A1 (de) * 2007-09-04 2009-03-11 Total Petrochemicals Research Feluy Metallocen-Polypropylen-Fasern und Spinnvlies mit verbesserten mechanischen Eigenschaften
US8137809B2 (en) * 2008-04-11 2012-03-20 Dsm Ip Assets B.V. Ultra high molecular weight polyethylene multifilament yarns, and process for producing thereof
JP6430964B2 (ja) * 2013-12-09 2018-11-28 株式会社Adeka 塗装性を向上させた被塗装基材
CN113227244A (zh) * 2018-12-27 2021-08-06 埃克森美孚化学专利公司 具有较快结晶时间的基于丙烯的纺粘织物

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US5137973A (en) * 1990-09-10 1992-08-11 Allied-Signal Inc. Polyolefins containing polyester nucleating agent and articles formed therefrom
US5366786A (en) * 1992-05-15 1994-11-22 Kimberly-Clark Corporation Garment of durable nonwoven fabric
CN1119364C (zh) * 1995-08-31 2003-08-27 智索公司 丙烯－乙烯共聚物组合物及其制备方法
WO1998004600A1 (fr) * 1996-07-31 1998-02-05 Japan Polyolefins Co., Ltd. Polypropylene a forte cristallinite
DE59812014D1 (de) * 1997-05-14 2004-11-04 Borealis Gmbh Schwechat Mannsw Polyolefinfasern und Polyolefingarne und daraus hergestellte textile Flächengebilde
FI974175A (fi) * 1997-11-07 1999-05-08 Borealis As Menetelmä polypropeenin valmistamiseksi
FI980342A0 (fi) * 1997-11-07 1998-02-13 Borealis As Polymerroer och -roerkopplingar

Also Published As

Publication number Publication date
ATE323790T1 (de) 2006-05-15
DE60118978D1 (de) 2006-05-24
AU2002231649A1 (en) 2002-06-18
WO2002046502A1 (en) 2002-06-13
EP1213375A1 (de) 2002-06-12
ES2260320T3 (es) 2006-11-01
EP1356142A1 (de) 2003-10-29
DE60118978T2 (de) 2007-03-15

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