GB422697A - Improvements in or relating to the polymerisation of methacrylonitrile - Google Patents

Improvements in or relating to the polymerisation of methacrylonitrile

Info

Publication number
GB422697A
GB422697A GB3014834A GB3014834A GB422697A GB 422697 A GB422697 A GB 422697A GB 3014834 A GB3014834 A GB 3014834A GB 3014834 A GB3014834 A GB 3014834A GB 422697 A GB422697 A GB 422697A
Authority
GB
United Kingdom
Prior art keywords
polymerization
peroxide
methacrylonitrile
emulsion
benzoyl peroxide
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
GB3014834A
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.)
LESLIE VIVIAN DONALD SCORAH
Pilkington Automotive Ltd
Original Assignee
LESLIE VIVIAN DONALD SCORAH
Triplex Safety Glass 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 LESLIE VIVIAN DONALD SCORAH, Triplex Safety Glass Co filed Critical LESLIE VIVIAN DONALD SCORAH
Publication of GB422697A publication Critical patent/GB422697A/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
    • C08F20/00—Homopolymers 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
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/42—Nitriles
    • C08F20/50—Nitriles containing four or more carbon atoms
    • 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
    • D01F6/16—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 carboxylic acids or unsaturated organic esters, e.g. polyacrylic esters, polyvinyl acetate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymerisation Methods In General (AREA)
  • Polymerization Catalysts (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Biological Depolymerization Polymers (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

Polymerization products are manufactured by subjecting methacrylonitrile to polymerizing conditions at a temperature not exceeding about 65--70 DEG C. in the absence of a plasticizer but in the presence of a peroxide facilitating polymerization and of a liquid, preferably organic, or mixture of liquids which dissolves the monomeric methacrylonitrile, but is a non-solvent for the polymer, e.g. alcohol, petroleum ether, or a mixture thereof. Alternatively, the polymer is obtained in powder form by carrying out the polymerization in emulsion in an aqueous liquid, the emulsion being maintained if necessary by addition of an emulsifying agent, e.g. triethanolamine stearate, and by agitation. The resulting latex may be coagulated by the addition of a precipitant, e.g. acetone and hydrochloric acid, and the powder washed free from emulsifying agent and precipitant. The polymerization is preferably effected at about 60 DEG C. and in a closed vessel. As peroxides facilitating polymerization may be employed organic peroxides, e.g. benzoyl peroxide or acetyl peroxide, inorganic peroxides, e.g. hydrogen peroxide or ozone, or mixtures of substances capable of forming one of the above, e.g. sodium peroxide and acetic anhydride. There may be added, before, during or after polymerization, fillers, dyes, pigments or other agents except plasticizers modifying the properties of the products, e.g. china clay, carbon black, powdered asbestos or wood flour. The products may be employed for the manufacture of safety glass and for other purposes as described in Specification 419,357. Examples describe the polymerization of methacrylonitrile under the following conditions: (1) at 60 DEG C. in aqueous emulsion in the presence of hydrogen peroxide and of the sulphonation product of the saturated fatty acids obtained by hydrogenating coconut oil; (2) at 60 DEG C. in aqueous emulsion in the presence of hydrogen peroxide, oleic acid and triethanolamine; (3) in aqueous emulsion in the presence of benzoyl peroxide and turkey red oil; (4) at 60 DEG C. in solution in absolute alcohol in the presence of benzoyl peroxide; (5) at 55 DEG C. in solution in petroleum ether in the presence of benzoyl peroxide. Specifications 358,534, 416,007, and 417,999 also are referred to.
GB3014834A 1933-03-02 1933-04-12 Improvements in or relating to the polymerisation of methacrylonitrile Expired GB422697A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB643333A GB419357A (en) 1933-03-02 1933-03-02 Improvements in or relating to the polymerisation of organic compounds

Publications (1)

Publication Number Publication Date
GB422697A true GB422697A (en) 1935-01-14

Family

ID=9814392

Family Applications (3)

Application Number Title Priority Date Filing Date
GB643333A Expired GB419357A (en) 1933-03-02 1933-03-02 Improvements in or relating to the polymerisation of organic compounds
GB3029034A Expired GB421397A (en) 1933-03-02 1933-04-12 Improvements in or relating to the polymerisation of organic compounds
GB3014834A Expired GB422697A (en) 1933-03-02 1933-04-12 Improvements in or relating to the polymerisation of methacrylonitrile

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB643333A Expired GB419357A (en) 1933-03-02 1933-03-02 Improvements in or relating to the polymerisation of organic compounds
GB3029034A Expired GB421397A (en) 1933-03-02 1933-04-12 Improvements in or relating to the polymerisation of organic compounds

Country Status (1)

Country Link
GB (3) GB419357A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471742A (en) * 1946-07-13 1949-05-31 Goodrich Co B F Polymerization of acrylonitrile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE888764C (en) * 1941-07-05 1953-09-03 Cassella Farbwerke Mainkur Ag Deformation of polyacrylonitrile and its copolymers
DE906515C (en) * 1950-03-30 1954-01-28 Du Pont Process for the production of polyacrylic acid nitrile or acrylic acid nitrile copolymer / plasticizer mixtures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471742A (en) * 1946-07-13 1949-05-31 Goodrich Co B F Polymerization of acrylonitrile

Also Published As

Publication number Publication date
GB419357A (en) 1934-11-02
GB421397A (en) 1934-12-12

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