GB1378720A - Method for producing fire-retardant acrylic synthetic fibres - Google Patents

Method for producing fire-retardant acrylic synthetic fibres

Info

Publication number
GB1378720A
GB1378720A GB4809772A GB4809772A GB1378720A GB 1378720 A GB1378720 A GB 1378720A GB 4809772 A GB4809772 A GB 4809772A GB 4809772 A GB4809772 A GB 4809772A GB 1378720 A GB1378720 A GB 1378720A
Authority
GB
United Kingdom
Prior art keywords
fire
fibres
retardant
acrylic
acrylonitrile
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
GB4809772A
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.)
Japan Exlan Co Ltd
Original Assignee
Japan Exlan Co Ltd
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 Japan Exlan Co Ltd filed Critical Japan Exlan Co Ltd
Publication of GB1378720A publication Critical patent/GB1378720A/en
Expired legal-status Critical Current

Links

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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
    • 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
    • D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
    • 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
    • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/38—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Toxicology (AREA)
  • Manufacturing & Machinery (AREA)
  • Artificial Filaments (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

1378720 Fire-retardant acrylic fibres JAPAN EXLAN CO Ltd 18 Oct 1972 48097/72 Heading B5B [Also in Division C3] Fire-retardant acrylic fibres derived from acrylonitrile homopolymers and copolymers have incorporated therein, as fire-retardant agent, a halo-phosphate of the formula wherein each of R 1 , R 2 and R 3 is a monovalent, halogen-substituted, aliphatic hydrocarbon radical having up to 8 carbon atoms, the halophosphate having an acid number of less than 5. The acrylic polymer preferably contains at least 70% by weight of acrylonitrile units; suitable comonomers include vinyl carboxylate esters, vinyl and vinylidene halides, (meth)allyl alcohol and esters thereof, (alk)acrylic acids and their esters, amides and nitriles, unsaturated sulphonic acids and their alkali metal salts, unsaturated hydrocarbons, and alkyl esters of unsaturated dicarboxylic acids. The halo-phosphates of the required acid number are obtained by preparing and storing them in the presence of the minimum possible amount of moisture or water. Incorporation of the fire-retardant agent into the fibres, preferably in an amount of 3-40% by weight of the fibres, is suitably effected by adding the halo-phosphate to a spinning solution of the acrylic polymer; in an alternative procedure the halophosphate is introduced by treating gelled acrylic fibres, obtained by a dry- or wet-spinning process, in a treatment bath containing the fire-retardant. The solvent used may be aqueous sodium or potassium thiocyanate or aqueous zinc or calcium chloride, or an organic solvent such as dimethyl formamide, dimethyl acetamide, ethylene carbonate or dimethyl sulphoxide. In examples acrylonitrile/ vinyl acetate and acrylonitrile/methyl acrylate copolymers are used as the acrylic polymer.
GB4809772A 1971-10-18 1972-10-18 Method for producing fire-retardant acrylic synthetic fibres Expired GB1378720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8233171A JPS5221089B2 (en) 1971-10-18 1971-10-18

Publications (1)

Publication Number Publication Date
GB1378720A true GB1378720A (en) 1974-12-27

Family

ID=13771563

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4809772A Expired GB1378720A (en) 1971-10-18 1972-10-18 Method for producing fire-retardant acrylic synthetic fibres

Country Status (3)

Country Link
JP (1) JPS5221089B2 (en)
CA (1) CA974352A (en)
GB (1) GB1378720A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63145416A (en) * 1986-11-29 1988-06-17 Asahi Chem Ind Co Ltd Para orientation type aramid yarn

Also Published As

Publication number Publication date
JPS4845622A (en) 1973-06-29
JPS5221089B2 (en) 1977-06-08
CA974352A (en) 1975-09-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee