GB1300467A - Cellular polyamide fibres - Google Patents

Cellular polyamide fibres

Info

Publication number
GB1300467A
GB1300467A GB37266/70A GB3726670A GB1300467A GB 1300467 A GB1300467 A GB 1300467A GB 37266/70 A GB37266/70 A GB 37266/70A GB 3726670 A GB3726670 A GB 3726670A GB 1300467 A GB1300467 A GB 1300467A
Authority
GB
United Kingdom
Prior art keywords
polyamide
modifier
filaments
monomer
pellets
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.)
Expired
Application number
GB37266/70A
Inventor
Tetsuya Kato
Toshiaki Hidaka
Chikatsu Okagawa
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Publication of GB1300467A publication Critical patent/GB1300467A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D01D5/247—Discontinuous hollow structure or microporous structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • 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
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/13—Cell size and distribution control while molding a foam
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/61—Processes of molding polyamide

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyamides (AREA)

Abstract

1300467 Cellular Polyamide fibres TORAY INDUSTRIES Inc 1 Aug 1970 37266/70 Heading B5B [Also in Division C3] Cellular polyamide fibres are produced from a dispersion of a thermally stable polyalkylene ether modifier having a molecular weight of 600 to 60,000 in a polyamide, the dispersion containing between 0À2 and 3À5 millimole alkylene oxide units per gram of polyamide, by converting the dispersion into pellets, melt spinning the pellets into filaments, drawing the filaments until they have a predetermined orientation and extracting the modifier to produce filaments having 0À5 to 13% by volume of voids. The modifier is present in the pellets as particles, the average axial diameter of at least 50% of them being below 20Á. The birefringence of the filaments should be not less than (49 log 10 (8a+8)-32) Î 10<SP>-3</SP> where a is the millimoles of alkylene oxide units per gram of polyamide. The modifier may be a reaction product of a polyalkylene oxide such as polyethylene oxide or polypropylene oxide, with a polyamide monomer, such as a lactam, or oligomer. The modifier may also be a phosphoric acid ester, or a metal salt thereof, of a polyalkylene ether having at least one hydroxy radical. The modifier may be introduced into the polyamide by dissolving it in the polyamide monomer solution or mixing it with the monomer, and then polymerizing the monomer. The modifier may be removed from the filaments after spinning by dissolving it out with water or an organic solvent, such as a mixture of methanol and benzene, which does not dissolve the polyamide. The lustre of the fibre may be improved by addition of fine white particles whose maximum diameter is less than 10Á, the quantity of which is given by the formula where C is the quantity in per cent by weight and d is the difference between the refractive indeces of the polyamide and the particles. Suitable particulate materials are talc, CaCO 3 , titanium oxide and kaolinite. The fibres produced should have a ratio of strength of scattered light (I/I 0 ) as herein defined of from 1À5 to 15 and a lustre factor, also as herein defined, of from 20 to 90.
GB37266/70A 1970-07-29 1970-08-01 Cellular polyamide fibres Expired GB1300467A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7011263A NL7011263A (en) 1970-07-29 1970-07-29

Publications (1)

Publication Number Publication Date
GB1300467A true GB1300467A (en) 1972-12-20

Family

ID=19810681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37266/70A Expired GB1300467A (en) 1970-07-29 1970-08-01 Cellular polyamide fibres

Country Status (6)

Country Link
US (1) US3734986A (en)
CA (1) CA986673A (en)
DE (1) DE2039105B2 (en)
FR (1) FR2102457A5 (en)
GB (1) GB1300467A (en)
NL (1) NL7011263A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121132A1 (en) * 1983-03-07 1984-10-10 Teijin Limited Process for producing wholly aromatic polyamide filaments heat-treated under tension

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT953596B (en) * 1972-03-31 1973-08-10 Snia Viscosa PROCEDURE FOR THE PRODUCTION OF POLYAMIDES HAVING IMPROVED ANTISTATIC PROPERTIES FOR TEXTILE USE THREADS YARNS AND TEXTILE PRODUCTS OBTAINED FROM SUCH POLYAMIDI MIDI
JPS4922472A (en) * 1972-06-22 1974-02-27
DE2324689A1 (en) * 1973-05-16 1974-12-05 Bayer Ag AGAINST YELLOWING STABILIZED ANTISTATIC POLYAMIDE COMPOUNDS
JPS51119069A (en) * 1975-03-20 1976-10-19 Nippon Oil Co Ltd Method of producing permeable film
US4464435A (en) * 1978-10-25 1984-08-07 Asahi Kasei Kogyo Kabushiki Kaisha Polyacetal resin composition excellent in heat stability and surface processability and process for surface treating same
US4963304A (en) * 1988-09-26 1990-10-16 The Dow Chemical Company Process for preparing microporous membranes
FR2846976B1 (en) * 2002-11-08 2005-12-09 Rhodianyl YARNS, FIBERS, FILAMENTS AND TEXTILE ARTICLES WITH ANTIBACTERIAL AND ANTIFUNGAL ACTIVITY
CN111465724A (en) * 2017-12-15 2020-07-28 3M创新有限公司 Fibers, articles, and methods comprising alkylene oxide-containing nonionic surfactants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121132A1 (en) * 1983-03-07 1984-10-10 Teijin Limited Process for producing wholly aromatic polyamide filaments heat-treated under tension

Also Published As

Publication number Publication date
CA986673A (en) 1976-04-06
DE2039105B2 (en) 1973-06-20
NL7011263A (en) 1972-02-01
US3734986A (en) 1973-05-22
DE2039105A1 (en) 1972-02-17
FR2102457A5 (en) 1972-04-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee