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
  • 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
  • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
• • 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]
• • 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
  • Y10T428/2973—Particular cross section
  • Y10T428/2976—Longitudinally varying

Definitions

• the present invention relates to a fiber containing a along the fiber running core (I) of a polymer and a core (I) surrounding this, chemically different from core (I) Sheath (II), characterized in that sheath (II) based on a polyamide that chemically binds to the polymer chain bound sterically hindered piperidine derivative (III).
• the present invention relates to the use of a such fiber for making yarns, fabrics and carpets.
• the yarn is produced in a conventional manner by melting of the polyamide, spinning the polyamide into a fiber, Stretching and texturing of this fiber and optionally after-treatment the fiber. This is usually followed by one Cabling and heat fixation of the yarn.
• the present invention was based on the object, a fiber to provide yarns with improved crimp let produce.
• the fiber includes a fiber extending along the fiber Core (I) of a polymer.
• Suitable polymers are those which are meltable and are spinnable in a molten state, such as Polyamides, polyesters, polyolefins, preferably polyamides, polyolefins, in particular polyamides.
• Polyamides are homopolymers, copolymers, mixtures and Understood grafts of synthetic long-chain polyamides, the recurrent amide groups in having the polymer backbone.
• polyamides are nylon 6 (polycaprolactam), nylon 6,6 (polyhexamethylene adipamide), Nylon 4,6 (polytetramethylene adipamide), nylon 6,10 (polyhexamethylene sebacamide), Nylon 7 (polyeneantholactam), nylon 11 (Polyundecanolactam), nylon 12 (polydodecanolactam).
• nylon 6 polycaprolactam
• nylon 6,6 polyhexamethylene adipamide
• Nylon 4,6 polytetramethylene adipamide
• nylon 6,10 polyhexamethylene sebacamide
• Nylon 7 polyeneantholactam
• nylon 11 Polyundecanolactam
• nylon 12 polydodecanolactam
• aramids aromatic Polyamides
• poly metaphenylene isophthalamide NOMEX® Fiber, U.S. Patent 3,287,324
• polyparaphenylene terephthalamide KEVLAR® fiber, US-A-3,671,542
• the preparation of polyamides can in principle by two methods respectively.
• lactams as starting monomers or starting oligomers
• polyaddition The polymerization of lactams as starting monomers or starting oligomers is usually referred to as polyaddition.
• Such polyamides can be prepared by methods known per se, such as for example in DE-A-14 95 198, DE-A-25 58 480, EP-A-129 196 or in: Polymerization Processes, Interscience, New York, 1977, Pp. 424-467, especially pp.
• 444-446 are selected from monomers selected from the group consisting of Lactams, omega-aminocarboxylic acids, omega-aminocarbonitriles, omega-aminocarboxamides, omega-aminocarboxylic acid salts, omega-aminocarboxylic acid esters, equimolar mixtures of Diamines and dicarboxylic acids, dicarboxylic acid / diamine salts, dinitriles and diamines or mixtures of such monomers.
• the lactam used is caprolactam, as diamine tetramethylenediamine, hexamethylenediamine or their mixtures and as dicarboxylic acid adipic acid, sebacic acid, Dodecanedioic acid, terephthalic acid, isophthalic acid or mixtures thereof one.
• lactam caprolactam as Diamine hexamethylenediamine and as dicarboxylic acid adipic acid or Terephthalic acid or mixtures thereof.
• chain regulators are compounds which have one or more, such as two, amino groups which are reactive during polyamide formation or one or more, such as two, carboxyl groups which are reactive in polyamide formation.
• Monocarboxylic acids such as alkanecarboxylic acids, for example acetic acid, propionic acid, such as benzene- or naphthalene monocarboxylic acid, for example benzoic acid, dicarboxylic acids, such as C 4 -C 10 -alkanedicarboxylic acid, for example adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, C 5 -C 8 -cycloalkanedicarboxylic acids, may advantageously be used as chain regulators for example, cyclohexane-1, 4-dicarboxylic acid, benzene or naphthalenedicarboxylic acid, for example terephthalic acid, isophthalic acid, naphthalene-2,6-dicarboxylic acid, C 2 - to C 20 -, preferably C 2 - to C 12 -alkylamines, such as cyclohexylamine, C 6 -
• the polymerization or polycondensation by the process according to the invention in the presence of at least one pigment preferred Pigments are titania, with titanium dioxide preferably in the Anatase modification, or inorganic coloring compounds or organic nature.
• the pigments are preferably in an amount of 0 to 5 parts by weight, especially 0.02 to 2 parts by weight, in each case based on 100 parts by weight of polyamide, added.
• the pigments can be added to the reactor with the starting materials or separately supplied therefrom.
• Polyolefins include homopolymers, copolymers, blends and grafts of synthetic long-chain polyolefins, by polymerization of olefinically unsaturated Compounds such as ethylene, propylene, styrene, acrylic acid and their Esters, methacrylic acid and their esters, preferably propylene can be.
• olefinically unsaturated Compounds such as ethylene, propylene, styrene, acrylic acid and their Esters, methacrylic acid and their esters, preferably propylene can be.
• the fiber contains a core (I) surrounding Mantle (II) based on a polyamide that is attached to the Polymer chain chemically bound sterically hindered piperidine Derivative (III) contains.
• Polyamides are homopolymers, copolymers, mixtures and Understood grafts of synthetic long-chain polyamides, the recurrent amide groups in having the polymer backbone.
• Examples of such polyamides are nylon 6 (polycaprolactam), nylon 6,6 (polyhexamethylene adipamide), Nylon 4,6 (polytetramethylene adipamide), nylon 6,10 (polyhexamethylene sebacamide), Nylon 6,12 (polyhexamethylenedodecanedioic acid amide) Nylon 7 (polyeneantholactam), nylon 11 (polyundecanolactam), Nylon 12 (polydodecanolactam). Wear these polyamides known as the generic name nylon.
• aramids aromatic polyamides
• polyparaphenylene isophthalamide NOMEX® fiber, US-A-3,287,324
• polyparaphenylene terephthalamide KEVLAR® Fiber, US-A-3,671,542
• the preparation of polyamides can in principle by two methods respectively.
• lactams as starting monomers or starting oligomers
• polyaddition The polymerization of lactams as starting monomers or starting oligomers is usually referred to as polyaddition.
• Such polyamides can be prepared by methods known per se, such as for example in DE-A-14 95 198, DE-A-25 58 480, EP-A-129 196 or in: Polymerization Processes, Interscience, New York, 1977, Pp. 424-467, especially pp.
• 444-446 are selected from monomers selected from the group consisting of Lactams, omega-aminocarboxylic acids, omega-aminocarbonitriles, omega-aminocarboxamides, omega-aminocarboxylic acid salts, omega-aminocarboxylic acid esters, equimolar mixtures of Diamines and dicarboxylic acids, dicarboxylic acid / diamine salts, dinitriles and diamines or mixtures of such monomers.
• the lactam used is caprolactam, as diamine tetramethylenediamine, hexamethylenediamine or their mixtures and as dicarboxylic acid adipic acid, sebacic acid, Dodecanedioic acid, terephthalic acid, isophthalic acid or mixtures thereof one.
• lactam caprolactam as Diamine hexamethylenediamine and as dicarboxylic acid adipic acid or Terephthalic acid or mixtures thereof.
• the polyamides with one or more chain regulators.
• the one or more, such as two, reactive in polyamide formation Amino groups or one or more, such as two, in polyamide formation have reactive carboxyl groups.
• Monocarboxylic acids such as alkanecarboxylic acids, for example acetic acid, propionic acid, such as benzene- or naphthalene monocarboxylic acid, for example benzoic acid, dicarboxylic acids, such as C 4 -C 10 -alkanedicarboxylic acid, for example adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, C 5 -C 8 -cycloalkanedicarboxylic acids, may advantageously be used as chain regulators
• cyclohexane-1,4-dicarboxylic acid, benzene or naphthalenedicarboxylic acid for example, terephthalic acid, isophthalic acid, naphthalene-2,6-dicarboxylic acid, C 2 to C 20 -, preferably C 2 - to C 12 - alkylamines, such as cyclohexylamine, C 6 -
• Such chain regulators may carry substituents, such as halogens, for example, fluorine, chlorine or bromine, sulfonic acid groups or their salts, such as lithium, sodium, potassium salts, or unsubstituted be.
• substituents such as halogens, for example, fluorine, chlorine or bromine, sulfonic acid groups or their salts, such as lithium, sodium, potassium salts, or unsubstituted be.
• sulfonated dicarboxylic acids in particular Sulfoisophthalic acid
• one of its salts such as alkali metal salts, for example, lithium, sodium, potassium salts, preferably Lithium or sodium salt, especially lithium salt.
• sheath (II) contains a polyamide which is an an Polymer chain chemically bonded sterically hindered piperidine derivative (III) contains.
• the tertiary, especially secondary amino groups of the piperidine ring systems not because of steric hindrance.
• Particularly preferred compound (III) is 4-amino-2,2,6,6-tetramethylpiperidine.
• compound (II) can be used in amounts of at most 0.8 Mol%, preferably at most 0.6 mol%, in particular at most 0.4 mol%, based on 1 mol of acid amide groups of the polyamide, use.
• the polymerization or polycondensation by the process according to the invention in the presence of at least one pigment preferred Pigments are titania, with titanium dioxide preferably in the Anatase modification, or inorganic coloring compounds or organic nature.
• the pigments are preferably in an amount of 0 to 5 parts by weight, especially 0.02 to 2 parts by weight, in each case based on 100 parts by weight of polyamide, added.
• the pigments can be added to the reactor with the starting materials or separately supplied therefrom.
• the one to the Polymer chain chemically bonded sterically hindered piperidine derivative (III) are, for example, in WO 95/28443, WO 97/05189, WO 98/50610, WO 99/46323, WO 99/48949, EP-A-822 275, EP-A-843 696 and the two German applications 10030515.6 and 10030512.1 described.
• core (I) and shell (II) are chemically different.
• core (I) and shell (II) have a different one Content of sterically bound to the polymer chain hindered piperidine derivative (III), preferably this Content in core (I) is smaller than in shell (II), in particular this content, in molar terms, in core (I) less than 50% this content in coat (II) is.
• this Content in core (I) is smaller than in shell (II), in particular this content, in molar terms, in core (I) less than 50% this content in coat (II) is.
• the production of the fibers can take place in a manner known per se, for example, in US-A-3,803,453, US-A-5,445,884, US-A-5,447,794, US-A-5,888,651, EP-A-410,415, EP-A-056,667.
• the polymer for core (I) and the polyamide for coat (II) produce separately, by means of a conveyor, like an extruder, each a melt of the polymers feed a spin pack package and spin the fiber there, in particular by quick spinning at take-off speeds of at least 4000 m / min.
• From the fibers according to the invention can be known in per se The way yarns, fabrics and carpets are made, as before described at the beginning.
• Fibers of 2700 dtex fineness and round cross section were prepared from the polyamides of Table 1, spun at a weight ratio of core (I) to sheath (II) of 70:30 and stretch textured to give the data shown in the Table. core coat Crimping [%]
• the fibers according to the invention have a better crimping than fibers according to the prior Technique consisting only of the material of sheath (II) (Comparative Example 1) or consist only of the material of core (I) (Comparative Example 2).

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Polyamides (AREA)
• Multicomponent Fibers (AREA)
• Carpets (AREA)
• Woven Fabrics (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (2)

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ID=7664468

Family Applications (1)

Country Status (23)

Family Cites Families (7)

• 2000
  • 2000-11-23 DE DE10058291A patent/DE10058291A1/de active Pending
• 2001
  • 2001-11-19 AR ARP010105388A patent/AR031476A1/es active IP Right Grant
  • 2001-11-20 TW TW090128720A patent/TW567201B/zh active
  • 2001-11-21 MY MYPI20015345A patent/MY134169A/en unknown
  • 2001-11-22 CA CA002429318A patent/CA2429318A1/en not_active Abandoned
  • 2001-11-22 CZ CZ20031427A patent/CZ20031427A3/cs unknown
  • 2001-11-22 CN CNB018194362A patent/CN1211511C/zh not_active Expired - Fee Related
  • 2001-11-22 ES ES01994700T patent/ES2247195T3/es not_active Expired - Lifetime
  • 2001-11-22 MX MXPA03004282A patent/MXPA03004282A/es not_active Application Discontinuation
  • 2001-11-22 PL PL01362423A patent/PL362423A1/xx not_active Application Discontinuation
  • 2001-11-22 AU AU2002224872A patent/AU2002224872A1/en not_active Abandoned
  • 2001-11-22 HU HU0301533A patent/HUP0301533A3/hu unknown
  • 2001-11-22 AT AT01994700T patent/ATE301736T1/de not_active IP Right Cessation
  • 2001-11-22 KR KR10-2003-7006899A patent/KR20030062352A/ko not_active Application Discontinuation
  • 2001-11-22 EP EP01994700A patent/EP1339900B1/de not_active Expired - Lifetime
  • 2001-11-22 JP JP2002545227A patent/JP2004532357A/ja not_active Withdrawn
  • 2001-11-22 DE DE50107073T patent/DE50107073D1/de not_active Expired - Fee Related
  • 2001-11-22 SK SK612-2003A patent/SK6122003A3/sk unknown
  • 2001-11-22 WO PCT/EP2001/013576 patent/WO2002042531A1/de active IP Right Grant
  • 2001-11-22 US US10/432,384 patent/US6811876B2/en not_active Expired - Fee Related
  • 2001-11-22 BR BR0115544-0A patent/BR0115544A/pt not_active IP Right Cessation
  • 2001-11-22 IL IL15565101A patent/IL155651A0/xx unknown
• 2003
  • 2003-05-07 BG BG107776A patent/BG107776A/bg unknown
  • 2003-06-20 ZA ZA200304802A patent/ZA200304802B/en unknown

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