ES358331A1 - Flame-Resistant Copolymers of Acrylonitrile - Google Patents

Flame-Resistant Copolymers of Acrylonitrile

Info

Publication number
ES358331A1
ES358331A1 ES358331A ES358331A ES358331A1 ES 358331 A1 ES358331 A1 ES 358331A1 ES 358331 A ES358331 A ES 358331A ES 358331 A ES358331 A ES 358331A ES 358331 A1 ES358331 A1 ES 358331A1
Authority
ES
Spain
Prior art keywords
units
weight
acrylonitrile
copolymers
vinylidene chloride
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
ES358331A
Other languages
Spanish (es)
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of ES358331A1 publication Critical patent/ES358331A1/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/42Nitriles
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/42Nitriles
    • C08F220/44Acrylonitrile

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Artificial Filaments (AREA)
  • Polymerization Catalysts (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Flame - resistant acrylonitrile copolymers, which are highly receptive to acid dyestuffs, comprise (a) 5-15% by weight of vinylidene chloride units, (b) 1-5% by weight of units of an amino-ester of the formula (where R1 is H or methyl, R2 and R3 each is methyl or ethyl, and n is 2, 3 or 4) and (c) as the balance, acrylonitrile units. In a modification, 1-15% by weight of the acrylonitrile units (based on total copolymer units) are replaced by units of at least one neutral monomer (other than vinylidene chloride) copolymerizable with acrylonitrile. The optional neutral monomer component may be an alkyl, aryl or aralkyl (meth)acrylate, styrene, a-methylstyrene or other substituted styrene, a vinyl ester, e.g. acetate or formate, an unsaturated aldehyde or ketone, an alkacrylonitrile, or (meth)acrylamide or an N-substituted derivative thereof. The copolymers are prepared by polymerizing the corresponding monomers in the presence of a free radical-liberating catalyst or radiation, e.g. azobisisobutyronitrile, benzoyl peroxide, potassium persulphate, sodium chlorate/sodium sulphite or light radiation. Polymerization may be effected in bulk, emulsion, solution or suspension and can be performed batchwise or continuously. The copolymers can be dissolved in solvents such as dimethylformamide or y-butyrolactone to form spinning solutions. When the copolymer contains a relatively large proportion of vinylidene chloride units, the copolymer is suitably dissolved in an aqueous solution of an alkali metal, alkaline earth metal or ammonium thiocyanate having a concentration satisfying one of the following relationships:- (a) 5À3 # x # 7À4 and 47 # y #60 or (b) 7À4 # x # 12À0 and 0À8x + 41À1 # y # 60 where x is the content (per cent by weight) of vinylidene chloride units in the copolymer and y is the concentration (per cent by weight) of the thiocyanate in the aqueous thiocyanate solution. There may also be incorporated into the copolymers, during the course of polymerization or in the preparation of the spinning solutions, a conventional flame-resisting agent such as antimony trioxide or tricresyl phosphate.
ES358331A 1967-09-26 1968-09-20 Flame-Resistant Copolymers of Acrylonitrile Expired ES358331A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6209467 1967-09-26

Publications (1)

Publication Number Publication Date
ES358331A1 true ES358331A1 (en) 1970-12-01

Family

ID=13190106

Family Applications (1)

Application Number Title Priority Date Filing Date
ES358331A Expired ES358331A1 (en) 1967-09-26 1968-09-20 Flame-Resistant Copolymers of Acrylonitrile

Country Status (2)

Country Link
ES (1) ES358331A1 (en)
GB (1) GB1182035A (en)

Also Published As

Publication number Publication date
GB1182035A (en) 1970-02-25

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