GB497638A - Method of polymerising a halogen-2-butadiene-1,3 - Google Patents

Method of polymerising a halogen-2-butadiene-1,3

Info

Publication number
GB497638A
GB497638A GB8110/37A GB811037A GB497638A GB 497638 A GB497638 A GB 497638A GB 8110/37 A GB8110/37 A GB 8110/37A GB 811037 A GB811037 A GB 811037A GB 497638 A GB497638 A GB 497638A
Authority
GB
United Kingdom
Prior art keywords
acid
agents
thioglycollic
emulsion
hydrogen sulphide
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
GB8110/37A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB497638A publication Critical patent/GB497638A/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
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C08F36/14—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen
    • C08F36/16—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen containing halogen

Landscapes

  • 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)

Abstract

Halogen-2-butadienes-1-3 such as chloroprene with or without other polymerizable substances are polymerized in acid emulsion in the presence of organic agents which are acid-stable and unpolymerizable and which can form additional compounds with chloroprene at 20-50 DEG C. and under atmospheric pressure. Suitable modifying agents are unsaturated compounds containing a carbonyl group adjacent to a double bond, such as benzoquinone and naphthoquinone, aromatic sulphonic acids, aromatic mercaptans, and mercapto-carboxylic acids; thiophenols, thiocresols, nitrothiophenols, chlorothiophenols, thionaphthols, benzyl mercaptan, and thioglycollic, thiolactic, thiomalic, and thiosalicylic acids and their esters are mentioned. The modifying agents may be used with sulphur dioxide or hydrogen sulphide if they do not react with these bodies; a suitable combination is hydrogen sulphide and thioglycollic acid. Suitable emulsifying agents are soluble salts of tertiary and quaternary ammonium bases which contain at least one long aliphatic chain such as cetyl- and octadecyl-trimethyl ammonium bromide, octadecyl betaine, and the soluble salts of sulphate esters of long chain aliphatic alcohols, such as the sulphate ester of oleyl acetate, sulphonated unsaturated hydrocarbons such as abietene sulphonic acid, and the reaction product of a long chain primary amine with two molecules of epichlorhydrin or glycide at room temperature. The emulsion may be of pH 1-5, and the polymerization may be effected at 0-100 DEG C. preferably at 20-50 DEG C. When the last-mentioned dispersing agents are used, the emulsion may be coagulated by making alkaline to Brilliant Yellow and heating to 60 DEG C. The emulsions are preferably aqueous, but other media such as glycols, glycerol or formamide may be used. Other polymerizable substances which may be added are, for instance, butadiene, methacrylic nitrile, and methyl methacrylate. Tables are given with particulars of the process and properties of the product when the following modifying agents are used, viz: a - naphthoquinone, benzene sulphonic acid, thiophenol, b -thionaphthol, thiocresol, p-nitro-thiophenol, benzyl mercaptan, thioglycollic acid, ethyl thioglycollate and thiosalicylic acid; and thioglycollic acid together with hydrogen sulphide and sulphur dioxide respectively. The polymerization process may be effected continuously. Specifications 387,363; 393,172, [Group V], 413,666, and 497,420 are referred to. The Specification as open to inspection under Sect. 91 includes the subject-matter of Specification 497,706. This does not appear in the Specification as accepted.
GB8110/37A 1936-03-19 1937-03-19 Method of polymerising a halogen-2-butadiene-1,3 Expired GB497638A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US497638XA 1936-03-19 1936-03-19

Publications (1)

Publication Number Publication Date
GB497638A true GB497638A (en) 1938-12-19

Family

ID=21961588

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8110/37A Expired GB497638A (en) 1936-03-19 1937-03-19 Method of polymerising a halogen-2-butadiene-1,3
GB34220/38A Expired GB497706A (en) 1936-03-19 1937-03-19 Method of polymerizing a halogen-2-butadiene-1,3

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB34220/38A Expired GB497706A (en) 1936-03-19 1937-03-19 Method of polymerizing a halogen-2-butadiene-1,3

Country Status (2)

Country Link
FR (1) FR821580A (en)
GB (2) GB497638A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205150A (en) * 1978-04-10 1980-05-27 Denki Kagaku Kogyo Kabushiki Kaisha Thermo-reversible elastomer composition comprising a liquid chloroprene polymer and a polyvalent metal oxide or hydroxide

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744402C (en) * 1937-12-03 1944-02-26 Ig Farbenindustrie Ag Process for the production of synthetic rubber
DE744403C (en) * 1938-05-23 1944-01-14 Ig Farbenindustrie Ag Process for the polymerization of butadiene hydrocarbons
DE906017C (en) * 1941-04-08 1954-03-08 Bayer Ag Process for the production of emulsion polymers
US2434536A (en) * 1942-07-14 1948-01-13 Standard Oil Dev Co Emulsion polymerization process
DE968233C (en) * 1943-12-28 1958-01-30 Bayer Ag Process for the manufacture of rubbery products by emulsion polymerization

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205150A (en) * 1978-04-10 1980-05-27 Denki Kagaku Kogyo Kabushiki Kaisha Thermo-reversible elastomer composition comprising a liquid chloroprene polymer and a polyvalent metal oxide or hydroxide

Also Published As

Publication number Publication date
GB497706A (en) 1938-12-19
FR821580A (en) 1937-12-08

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