GB1295479A - - Google Patents

Info

Publication number
GB1295479A
GB1295479A GB1295479DA GB1295479A GB 1295479 A GB1295479 A GB 1295479A GB 1295479D A GB1295479D A GB 1295479DA GB 1295479 A GB1295479 A GB 1295479A
Authority
GB
United Kingdom
Prior art keywords
esters
acrylonitrile
copolymers
units
allyl
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
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 filed Critical
Publication of GB1295479A publication Critical patent/GB1295479A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/14—Esterification
    • C08F8/16—Lactonisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Artificial Filaments (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

1295479 Flame resistant acrylonitrile polymer filaments and films JAPAN EXLAN CO Ltd 22 May 1970 [22 May 1969] 25031/70 Heading B5B [Also in Division C3] Flame-resistant acrylic articles, e.g. fibres or films, are made by shaping an acrylonitrile copolymer containing at least 50% by weight of acrylonitrile units and also lactone units of the formula in which R is a hydrogen atom or a methyl group. The copolymers are obtained by treating a compolymer of acrylonitrile with a monomer having, or being capable of producing a hydroxyl group, e.g. in an aqueous acid medium, so as to effect lactonization. Suitable hydroxy or hydroxy-yielding monomers include allyl alcohol, methallyl alcohol, vinyl ethers, allyl ethers, vinyl esters, allyl esters, methallyl esters and isopropenyl esters. The copolymers may also include units of a halogen-containing monomer, e.g. vinyl chloride or bromide or vinylidene chloride as well as of other comonomers such as allylsulphonic or methallylsulphonic acid or a salt thereof, or styrene. In examples, filaments are spun from aqueous thiocyanate or dimefhylformamide solutions of the copolymers, and these are then stretched in boiling water or polyethylene glycol, dried and heat-treated in superheated steam. Also, a film about 0À1 mm. thick is formed on a glass plate from a dimethylformamide copolymer solution.
GB1295479D 1969-05-22 1970-05-22 Expired GB1295479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3997569A JPS4913933B1 (en) 1969-05-22 1969-05-22

Publications (1)

Publication Number Publication Date
GB1295479A true GB1295479A (en) 1972-11-08

Family

ID=12567937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1295479D Expired GB1295479A (en) 1969-05-22 1970-05-22

Country Status (5)

Country Link
JP (1) JPS4913933B1 (en)
CA (1) CA932899A (en)
ES (1) ES379893A1 (en)
GB (1) GB1295479A (en)
NL (1) NL7007348A (en)

Also Published As

Publication number Publication date
DE2025100A1 (en) 1972-01-13
ES379893A1 (en) 1972-09-01
DE2025100B2 (en) 1976-04-01
CA932899A (en) 1973-08-28
JPS4913933B1 (en) 1974-04-04
NL7007348A (en) 1970-11-24

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Legal Events

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