EP0878567A2 - Fibres de polyoléfines et fils de polyoléfines et produits textiles les utilisant - Google Patents

Fibres de polyoléfines et fils de polyoléfines et produits textiles les utilisant Download PDF

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Publication number
EP0878567A2
EP0878567A2 EP98107669A EP98107669A EP0878567A2 EP 0878567 A2 EP0878567 A2 EP 0878567A2 EP 98107669 A EP98107669 A EP 98107669A EP 98107669 A EP98107669 A EP 98107669A EP 0878567 A2 EP0878567 A2 EP 0878567A2
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EP
European Patent Office
Prior art keywords
mass
propylene
polypropylene
melt
polyolefin
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
EP98107669A
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German (de)
English (en)
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EP0878567A3 (fr
EP0878567B1 (fr
Inventor
Manfred Prof. Dr. Rätzsch
Ulf Dr. Panzer
Achim Dr. Hesse
Norbert Dr. Reichelt
Manfred Ing. Kirchberger
Peter Ing. Niedersüss
Anton Ing. Wolfsberger
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Borealis AG
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PCD Polymere AG
Borealis AG
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Filing date
Publication date
Priority claimed from DE1997120135 external-priority patent/DE19720135B4/de
Priority claimed from DE1997122579 external-priority patent/DE19722579B4/de
Application filed by PCD Polymere AG, Borealis AG filed Critical PCD Polymere AG
Publication of EP0878567A2 publication Critical patent/EP0878567A2/fr
Publication of EP0878567A3 publication Critical patent/EP0878567A3/fr
Application granted granted Critical
Publication of EP0878567B1 publication Critical patent/EP0878567B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • Y10T428/2931—Fibers or filaments nonconcentric [e.g., side-by-side or eccentric, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2967—Synthetic resin or polymer

Definitions

  • the invention relates to melt-processed polyolefin fibers and High tenacity and elongation polyolefin yarns, especially non-post-drawn ones Polyolefin fibers and polyolefin yarns, and textile fabrics made therefrom.
  • Fibers, yarns and textile fabrics made of polypropylene are known (US 3,092,891; Films, fabrics and nonwovens made of polypropylene ", p.175-189, VDI-Verlag Düsseldorf 1979; Moore, P., Polypropylene Handbook "pp. 350-358, Carl Hanser Verlag Kunststoff 1996).
  • the manufacturing process for fibers and yarns based on polypropylene differ in spinning speed and post-treatment of the spun threads.
  • the filaments are moving at high speed (500 to 2000 m / min.) Withdrawn from the spinneret. Because with this procedure If the polypropylene macromolecules are not fully oriented, the produced filaments are stretched in a further operation. This mostly takes place in combination with other post-processing steps.
  • Comparable conditions for influencing the basic fiber properties also apply to the spunbonded process.
  • the filaments are drawn off through the cooling zone either by accelerated downpipe air or compressed air-operated nozzles [Fourne ' , F., Chemiefaser-Textilindustrie 95 (1993), 811-822].
  • the undrawn filaments produced are deposited in a flat, disordered form on a sieve-shaped conveyor belt and further processed into spunbonded fabric in a post-processing step by applying thermal bonding (by means of calender strengthening) or needling processes.
  • a special variant of the nonwoven production is the blown fiber (melt-blow) spinning technology, in which the thread formation takes place with the application of a highly heated devis stream around the capillary nozzle openings [Fourne ' , F. Chemical fibers / textile industry 81 (1979), 445-449].
  • the air flow divides the molten polymer thread into many small individual fibers with a very small diameter and at the same time causes the individual threads to stretch.
  • the further processing of the fibers or filaments deposited on the wire conveyor belt is carried out in accordance with the spunbond technology.
  • High-strength filament yarns In the production of high-strength filament yarns [Fully Drawn Yarn (FDY)], the filaments are drawn off from the spinneret with the help of godets and processed in downstream devices consisting of a stretching device and a winder. High-strength filament yarns can be produced using both the short spinning process and the fast spinning process. In addition to stretching, the Bulked continuous filament "process a three-dimensional crimp by texturing devices [Bussmann, M., Chemiefaser / Textilindustrie 35 (1986) 87, 668-672].
  • the properties of the fibers, yarns and textile fabrics are determined by the Manufacturing process and the polypropylene used determined.
  • nucleating agents leads to a decrease in the strength of the Fibers (Richeson, G., ANTEC'96, 2305-2311).
  • Formulations with fillers such as calcium carbonate [Nago, S., J. Appl. Polymer Sci. 62 (1996), 81-86] or poly (methylsesquioxane) [Nago, S., J. Appl. Polymer sci. 61 (1996), 2355-2359] after spinning and stretching microporous fibers.
  • Fibers with increased heat resistance can be achieved by spinning polypropylene blends with polyethylene terephthalate [Qin, Y., J. Appl. Polymer sci. 61 (1966), 1287-1292] or with Prepare liquid crystalline polymers [Qin, Y., Polymer 34 (1993), 3597].
  • Polypropylene fibers have the disadvantage of a relatively low tensile elongation.
  • An addition of elastomers such as ethylene-propylene rubber or ethylene-propylene-diene rubber leads to an increase in stretch, but at the same time a sharp drop in the strength of the polypropylene fibers and polypropylene yarns.
  • the object of the present invention was to develop Polyolefin fibers and polyolefin yarns of high strength and elongation, in particular of undrawn polyolefin fibers and polyolefin yarns, and therefrom manufactured textile fabrics.
  • Propylene polymers A) are propylene polymers by radical coupling reactions or polymer-analogous reactions of functionalized polypropylenes were manufactured.
  • the starting products for the modified propylene polymers A) are preferred Propylene homopolymers as well as copolymers of propylene and ⁇ -olefins 2 to 18 carbon atoms and mixtures of the polypropylenes mentioned.
  • Especially preferred starting products for these modified propylene polymers are polypropylene - Homopolymers, statistical propylene - copolymers, propylene block copolymers and / or statistical propylene block copolymers.
  • the modified propylene polymers produced by polymer-analogous reactions A) can be realized by implementing functionalized polypropylenes with multifunctional ones Make connections of opposite reactivity.
  • the modified propylene polymers A) can also by hydrolytic Condensation of polypropylenes containing hydrolyzable silane groups, getting produced. Examples are those in DE 4107635 or US 47 14 716 described products.
  • the polypropylenes used for the production of this preferred modified propylene polymer A) consist in particular of propylene homopolymers and / or copolymers of propylene and ⁇ -olefins having 2 to 18 carbon atoms and of mixtures of the polypropylenes mentioned.
  • Polypropylene particles of polypropylenes with a bimodal molar mass distribution which were produced in a reactor cascade using Ziegler-Natta catalysts or metallocene catalysts, with a molar mass weight average M w of 500,000 to 1,500,000 g / mol and a molar mass number average M n of 25,000 to 100,000 are particularly preferred g / mol and M w / M n values from 5 to 60, preferably with weight average molecular weights M w from 600,000 to 1,000,000 g / mol, number average molecular weights M n from 30,000 to 100,000 g / mol and M w / M n - Values from 15 to 35.
  • the heating and melting of the polypropylene particles takes place in which the acyl peroxides, alkyl peroxides, hydroperoxides and / or peresters as thermally disintegrating radical formers and the bifunctionally unsaturated monomers are sorbed under an atmosphere of volatile bifunctionally unsaturated Monomers preferably in continuously operating kneaders or extruders, preferably in twin-screw oars.
  • the propylene polymers B) which are present as non-modified propylene polymers B) in the conventional propylene polymers 1) which may be present in the polyolefin fibers and polyolefin yarns and the textile fabrics made therefrom preferably consist of propylene homopolymers with an M w / M n ratio of 2 to 4.5 and / or copolymers Propylene and ⁇ -olefins with 2 to 18 carbon atoms and from mixtures of the polypropylenes mentioned.
  • the as unmodified propylene polymers B) in the polyolefin fibers and polyolefin yarns and fabric made therefrom, optionally as Component 2) contained polyolefin mixture of crystalline copolymers and Elastic copolymers are, for example, those in EP 400333 or EP 472946 described polymer mixtures.
  • the as unmodified propylene polymers B) in the polyolefin fibers and polyolefin fibers and fabric made therefrom, optionally as Component 3) contained amorphous polypropylenes are in particular stereoblock polypropylenes, which, for example, using highly active, metal oxide fixed Ziegler-Natta catalysts [Collette, J., Macromolecules 22 (1989), 3851-3858; DE 2830160] or soluble Ziegler-Natta catalysts [de Candia, F., Macromol. Chem. 189 (1988), 815-821], optionally under the following Reactive modification (EP 636863) and / or degradation (EP 640 850) will.
  • the as unmodified propylene polymers B) in the polyolefin fibers and polyolefin yarns and fabric made therefrom, optionally as Component 4) contained non-isotactic propylene homopolymers are in particular elastomeric high molecular propylene homopolymers, for example those in Products described in EP 475 307 or EP 475 308.
  • Unmodified propylene polymers B) are particularly preferred in the polyolefin fibers and polyolefin yarns and textile fabrics made therefrom Polyolefin blends that combine several of the unmodified polyolefin components 1) to 4) included.
  • auxiliaries contained are preferably 0.01 to 2.5% by mass of stabilizers, 0.1 to 1 % Antistatic, 0.2 to 3% pigment, 0.05 to 1% nucleating agent and / or 0.01 to 1 mass% processing aid.
  • These excipients can already be used in the components used in melt processing A) and / or B) can be contained or additionally added to these components.
  • HALS sterically hindered amines
  • Suitable phenolic antioxidants are 2-tert-butyl-4,6-dimethylphenol, 2,6-di-tert-butyl-4-methylphenol, 2,6-di-tert-butyl-4-isoamylphenol, 2,6, -di-tert-butyl-4-ethylphenol, 2-tert-butyl-4,6-diisopropylphenol, 2,6-dicyclopentyl-4-methylphenol, 2,6-di-tert-butyl-4-methoxymethylphenol, 2-tert-butyl-4,6-dioctadecylphenol, 2,5-di-tert-butylhydroquinone, 2,6-di-tert-butyl-4,4-hexadecyloxyphenol, 2,2'-methylene-bis (6-tert-butyl-4-methylphenol), 4,4'-thio-bis- (6-tert-butyl-2-methylphenol), 3 (3,5-d
  • 5,7-di-tert-butyl-3- (3,4-dimethylphenyl) -3H-benzofuran-2-one is a benzofuranone derivative suitable.
  • Calcium stearate, magnesium stearate and / or can be used as processing aids Waxes are used.
  • Diphenyl-heated melt pumps for the melts heated to 240-310 ° C used.
  • the Fibers drawn off according to the invention with the aid of high-speed godets and in Successor devices from stretching unit, crimper, fixing unit and cutting machine processed by stretching, crimping and cutting, being in Short spinning lines (slow spinning) with numbers of nozzle holes from 2000 to 70000 Hole / nozzle the thread take-off speeds to 60 to 250 m / min and in Long spinning systems (conventional high-speed spinning systems) with numbers of nozzle holes the thread take-up speeds from 800 to 3500 holes / nozzle 350 to 4000 m / min can be set.
  • the crimping takes place in a stuffer box, at Long spinning lines over crimper, the crimp is two-dimensional.
  • the fibers from the polypropylene mixtures are drawn off according to the invention with the aid of high-speed godets in successor devices from stretching device, hot air texturing chamber, relaxing device, tangle device and winder by stretching, hot air testing, crimping and tangling at thread take-off speeds of 1000 to 4000 m / min further processed, the tangling saves a separate twisting process.
  • the threads from the polypropylene mixtures are drawn off according to the invention with the aid of high-speed godets in successor devices consisting of stretching device and winder, in short spinning systems the thread take-off speeds are set to 60 to 450 m / min and in long spinning systems the thread take-off speeds are set to 350 to 4000 m / min.
  • the threads are made from Polypropylene mixtures according to the invention in successor devices Cables and winders processed further.
  • Filament yarn from Pre-oriented yarn type ( Preoriented yarn "type) with capillary titers from 2 to 6 dtex and total titers up to 500 dtex are produced according to the invention by further processing the fibers from the polypropylene mixtures in downstream devices from a deflection system and winder and optionally interposed godets at thread take-off speeds of 1000 to 5000 m / min.
  • Textile fabrics in the form of nonwovens are according to the invention Extraction of the fibers from the polypropylene mixtures in the blow duct using air by processing the threads into spunbonded nonwovens in successor devices Screen conveyor belt, calender or needling device and winder Flat, disorderly laying down of the fibers on the sieve-shaped conveyor belt and application of thermal bonding or needling processes to achieve the required strength and dimensional stability.
  • Opposite staple fiber fleeces these spunbonded fabrics have a significantly cheaper lengthways / crossways Strength ratio.
  • application forms a special variant of nonwoven production a highly heated air flow around the capillary nozzle openings during the extrusion of the Fibers from the polypropylene mixtures from the capillary tool in the Blow duct.
  • the air flow stretches the melted thread out of the Polyolefin mixture with simultaneous division into many individual vials Fiber diameters from 0.5 to 12 ⁇ m.
  • the further processing of the on the The screen conveyor belt of the deposited fibers is analogous to the spunbond production.
  • meltblowing variant of nonwoven production from the Polyolefin blends is the temperature and shear rate profile of the Melt processing facility, which must be set so that the Melt a degradative reduction in viscosity to a melt index 150g / 10 min at 230 ° C / 2, 16 kp.
  • Preferred extruders (1) for melting the polyolefin mixtures are Single screw extruder with high homogenization effect with screw lengths of 28 up to 36 D, preferably with flanged static or dynamic mixers, used.
  • Preferred dimensions of the spinnerets (3) are spinnerets with inner diameters from 0.35 to 1.5 mm.
  • the take-off device (5) can be done directly via the winder (6) or under Intermediate switching of high-speed godets.
  • Preferred take-off speeds for capillary titers from 2.5 to 5 dtex are 2500 to 3500 m / min.
  • a polyolefin mixture which consists of 99 % By mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 1 mass% of a modified polypropylene (melt index 5.5 g / 10 min at 230 ° C / 2.16 kg, quotient of the intrinsic viscosity (in decalin at 135 ° C) of the modified polypropylene and the intrinsic viscosity of the unmodified Polypropylene with largely the same molar mass weight average 0.74), 0.25 mass% 2-tert-butyl-4,6-diisopropylphenol, 0.2 mass% bis - 2,2,6,6 - tetramethyl-4-piperidyl sebazate and 0.2% by mass of calcium stearate (auxiliaries in each case to the sum of the propylene polymers) at a melt temperature of 275 ° C in Extruder
  • the melt becomes the with the spinning pump Spinnerets transferred and at a temperature of the spinnerets of 292 ° C the blow chute, which is cooled with compressed air at a temperature of 20 ° C, with a take-off speed of 3000 m / min through high-speed godets stripped and wound up.
  • the resulting undrawn polypropylene yarn has a total titer of 252 dTex, a tensile strength of 19.5 cN / tex and an elongation of 202%.
  • a polyolefin mixture which consists of 89 % By mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 10 mass% of an unmodified heterophasic statistical propylene-ethylene block copolymer (ethylene content 33 mol%, melt index 8 g / 10 min at 230 ° C / 2.16 kg), 1 mass% of a modified polypropylene (Melting indices 5.5 g / 10 min at 230 ° C / 2, 16 kg, quotient from the intrinsic viscosity (in decalin at 135 ° C) of the modified polypropylene and the intrinsic viscosity of the unmodified polypropylene with largely the same molar mass weight average 0.74), 0.25 mass% 2-tert-butyl-4,6-diisopropylphenol, 0.25 mass% bis - 2,2,6,6 - te
  • the melt is with the Spinning pump transferred to the spinnerets and at a temperature of the spinnerets of 275 ° C through the blow shaft, which with compressed air has a temperature of 20 ° C is cooled, with a take-off speed of 3000 m / min high-speed godets removed and wound up.
  • the resulting undrawn polypropylene yarn has a total titer of 253 dTex, a tensile strength of 18.5 cN / tex and an elongation of 195%.
  • a polypropylene compound that is made 100% by mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 0.2% by mass of pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxyphenyl)] propionate, 0.2 mass% bis - 2,2,6,6 tetramethyl-4-piperidyl sebazate and 0.2% by mass of magnesium stearate (auxiliary substances in each case based on the Polypropylene homopolymer) at a melt temperature of 280 ° C in the extruder melted.
  • the melt becomes the spinnerets with the spinning pump transferred and at a temperature of the spinnerets of 290 ° C by the Blow duct, which is cooled with compressed air at a temperature of 20 ° C, with a take-off speed of 3000 m / min due to high-speed godets stripped and wound up.
  • the resulting undrawn polypropylene yarn has a total titer of 254 dtex, a tensile strength of 23.7 cN / tex and an elongation of 124%.
  • a powdery polypropylene homopolymer (melt index of 0.2 g / 10 min at 230 ° C / 2.16 kp, average particle diameter 0.55 mm) is continuously metered into a continuous heatable continuous mixer.
  • the polypropylene homopolymer loaded with thermally disintegrating radical generator and auxiliary is held for 6 min at 45 ° C.
  • the resulting modified polypropylene has an IR spectroscopic determined bound butadiene content of 1.0% by weight and a Melt index of 0.85 g / 10 min at 230 ° C / 2.16 kp.
  • a polypropylene mixture is made up of 99 mass% of a polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 1 mass % of a modified polypropylene (melt index of 0.85 g / 10 min at 230 ° C / 2.16 kp, content of bound butadiene 1.0% by weight), 0.25% by mass of 2-tert-butyl-4,6 -diisopropylphenol, 0.2 mass% bis - 2,2,6,6 - tetramethyl-4-piperidyl sebazate and 0.2 mass% calcium stearate (auxiliaries based in each case on the sum of the propylene polymers) melted in the extruder at a melt temperature of 272 ° C.
  • the melt is transferred to the spinnerets with the melt pump and, at a temperature of the spinnerets of 290 ° C., is drawn off through the blow shaft, which is cooled with compressed air at a temperature of 20 ° C., at a take-off speed of 3000 m / min by high-speed godets and wound up.
  • the resulting filament yarn from Pre-oriented yarn type has a total titer of 252 dtex, a tensile strength of 19.5 cN / tex and a tensile elongation of 202%.
  • a polypropylene compound that is 100% by mass of an unmodified polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C./2.16 kg), 0.2 mass% of pentaerythritol tetrakis [3- (3,5-di-tert-butyl-4-hydroxy-phenyl)] propionate, 0.2 mass% bis - 2,2,6,6-tetramethyl-4-piperidyl sebazate and 0.2% by mass of magnesium stearate (auxiliaries in each case based on the Polypropylene homopolymer) at a melt temperature of 275 ° C in the plasticizing extruder melted.
  • the melt becomes the melt with the melt pump Spinnerets transferred and at a temperature of the spinnerets of 290 ° C the blow chute, which is cooled with compressed air at a temperature of 20 ° C, with a take-off speed of 3000 m / min through high-speed godets stripped and wound up.
  • the resulting filament yarn from Pre-oriented yarn type has a total titer of 254 dtex, a tensile strength of 23.7 cN / tex and a tensile elongation of 124%.
  • a powdery random polypropylene copolymer (melt index of 0.85 g / 10 min at 230 ° C / 2.16 kp, average particle diameter 0.85 mm) is continuously metered into a continuous heatable continuous mixer. Furthermore, 0.05% by weight of hydrotalcite, 0.05% by weight of calcium stearate and 0.45% by weight of tert-butyl peroxybenzoate, in each case based on the polypropylene copolymer, are metered continuously into the continuous mixer. With homogeneous mixing at 70 ° C., the polypropylene homopolymer loaded with thermally disintegrating radical generator and auxiliary material is at a residence time of 4 min at 70 ° C.
  • the resulting modified polypropylene copolymer has a content of bound divinylbenzene, determined by IR spectroscopy, of 0.32% by weight and a melt index of 1.35 g / 10 min at 230 ° C./2.16 kp.
  • a polypropylene mixture is made up of 89% by mass of a polypropylene homopolymer (melt index 18.2 g / 10 min at 230 ° C / 2.16 kg), 10 mass% of a reactor blend (ethylene content 33 mol%, melt index 8 g / 10 min at 230 ° C / 2.16 kg), consisting of a crystalline propylene-ethylene copolymer and an elastic ethylene-propylene copolymer, 1 mass% of one modified polypropylene (content of bound divinylbenzene of 0.32 mass%, melt index of 1.35 g / 10 min at 230 ° C / 2.16 kp), 0.25 mass% of 2-tert-butyl-4,6-diisopropylphenol , 0.25% by mass
  • the melt is transferred to the spinnerets with the melt pump and drawn off at a spinning nozzle temperature of 285 ° C through the blow shaft, which is cooled with compressed air at a temperature of 20 ° C, at a take-off speed of 3000 m / min by high-speed godets and placed in a jug.
  • the discarded polypropylene thread is used for the discontinuous production of staple fibers in a laboratory post-processing line consisting of stretching unit, crimper and Cutting machine with 850% stretch and two-dimensional crimp subjected and cut into segments.
  • a non-crimped sample (thread diameter 0.2 mm) has a tensile strength of 540 MPa and an elongation of 46%.
  • the fiber segments are further processed on a laboratory calender by thermal bonding to form a nonwoven fabric that has a basis weight of 60 g / m 2 and a longitudinal / transverse strength ratio of 2.6: 1.

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  • Engineering & Computer Science (AREA)
  • 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)
  • Woven Fabrics (AREA)
EP98107669A 1997-05-14 1998-04-28 Fibres de polyoléfines et fils de polyoléfines et produits textiles les utilisant Expired - Lifetime EP0878567B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19720135 1997-05-14
DE1997120135 DE19720135B4 (de) 1997-05-14 1997-05-14 Nichtnachverstreckte Polyolefinfasern und Polyolefingarne hoher Festigkeit und Dehnung und daraus hergestellte textile Flächengebilde
DE19722579 1997-05-30
DE1997122579 DE19722579B4 (de) 1997-05-30 1997-05-30 Fasern und Garne hoher Festigkeit und Dehnung, Verfahren zu deren Herstellung und Verwendung

Publications (3)

Publication Number Publication Date
EP0878567A2 true EP0878567A2 (fr) 1998-11-18
EP0878567A3 EP0878567A3 (fr) 2001-01-17
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EP1213375A1 (fr) * 2000-12-07 2002-06-12 Borealis GmbH Fibres de polyoléfines non post-étirées avec haute tenacité
EP1213376A1 (fr) * 2000-12-07 2002-06-12 Borealis GmbH Fibres de polyoléfine non post-étirées avec haute tenacité
EP1260618A1 (fr) * 2001-05-22 2002-11-27 Borealis Technology Oy Fibres en polymère de propylène thermosoudables
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WO2003103801A1 (fr) * 2002-06-06 2003-12-18 東洋紡績株式会社 Filtre a electret et procede de production de ce filtre
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EP1834015B1 (fr) * 2004-12-23 2008-11-19 Basell Poliolefine Italia S.r.l. Fibres présentant des propriétés élastiques
EP1731302A1 (fr) * 2005-06-06 2006-12-13 DSM IP Assets B.V. Procédé de fabrication d'une structure multicouche
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EP2150385B8 (fr) 2007-06-03 2012-03-21 Imerys Pigments, Inc. Fibres filées constituées de carbonate de calcium revêtu, leurs procédés de production et produits non tissés
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BRPI0906807B1 (pt) * 2008-01-21 2019-02-19 Imerys Pigments, Inc. Fibra monofilamentar
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WO2011087694A2 (fr) * 2009-12-23 2011-07-21 Invista Technologies S.A.R.L Tissu comportant une fibre élastique de polyoléfine
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WO2014088856A1 (fr) 2012-12-03 2014-06-12 Exxonmobil Chemical Patents Inc. Polymères de propylène
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EP3263749A1 (fr) * 2016-06-30 2018-01-03 Dow Global Technologies LLC Gazon artificiel présentant un meilleur ancrage
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WO2021111804A1 (fr) * 2019-12-02 2021-06-10 花王株式会社 Composition de résine de filage à l'état fondu, son procédé de fabrication et procédé de fabrication de fibre
CN115558204B (zh) * 2022-09-27 2023-09-01 金旸（厦门）新材料科技有限公司 一种低收缩高光泽v0级无卤阻燃聚丙烯复合材料及其制备方法

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WO1999011678A2 (fr) * 1997-09-01 1999-03-11 Targor Gmbh Articles moules par injection constitues d'un alliage organometallique et de propylene
WO1999011678A3 (fr) * 1997-09-01 1999-05-27 Targor Gmbh Articles moules par injection constitues d'un alliage organometallique et de propylene
EP1213375A1 (fr) * 2000-12-07 2002-06-12 Borealis GmbH Fibres de polyoléfines non post-étirées avec haute tenacité
EP1213376A1 (fr) * 2000-12-07 2002-06-12 Borealis GmbH Fibres de polyoléfine non post-étirées avec haute tenacité
WO2002046502A1 (fr) * 2000-12-07 2002-06-13 Borealis Gmbh Fibres de polyolefines non pre-etiree a haute tenacite
EP1260618A1 (fr) * 2001-05-22 2002-11-27 Borealis Technology Oy Fibres en polymère de propylène thermosoudables
WO2002095095A2 (fr) * 2001-05-22 2002-11-28 Borealis Technology Oy Non-tisse forme par liaison de fibres polymeres de propylene ayant des proprietes de liaison ameliorees
WO2002095095A3 (fr) * 2001-05-22 2003-02-13 Borealis Tech Oy Non-tisse forme par liaison de fibres polymeres de propylene ayant des proprietes de liaison ameliorees
WO2006063905A1 (fr) * 2004-12-13 2006-06-22 Basell Poliolefine Italia S.R.L. Composition de polyolefines, fibres et tissus non-tisses

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US20020002241A1 (en) 2002-01-03
US6218011B1 (en) 2001-04-17
CZ298667B6 (cs) 2007-12-12
US6537473B2 (en) 2003-03-25
DE59812014D1 (de) 2004-11-04
CZ143798A3 (cs) 1999-05-12
EP0878567A3 (fr) 2001-01-17
EP0878567B1 (fr) 2004-09-29

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