GB993764A - Copolymers - Google Patents

Copolymers

Info

Publication number
GB993764A
GB993764A GB849863A GB849863A GB993764A GB 993764 A GB993764 A GB 993764A GB 849863 A GB849863 A GB 849863A GB 849863 A GB849863 A GB 849863A GB 993764 A GB993764 A GB 993764A
Authority
GB
United Kingdom
Prior art keywords
sodium
methylpentene
vinyl acetate
sodium dioctyl
ammonium
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
GB849863A
Inventor
William Flavell
Wiktor Mikuchi
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.)
BP PLC
Original Assignee
BP PLC
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 BP PLC filed Critical BP PLC
Priority to GB849863A priority Critical patent/GB993764A/en
Priority to FR965812A priority patent/FR1389151A/en
Priority to NL6402140A priority patent/NL6402140A/xx
Priority to BE644693A priority patent/BE644693A/xx
Publication of GB993764A publication Critical patent/GB993764A/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
    • C08F218/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
    • C08F218/02—Esters of monocarboxylic acids
    • C08F218/04—Vinyl esters
    • C08F218/08—Vinyl acetate
    • 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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

Abstract

Copolymers of vinyl acetate and a methylpentene-1 may be prepared by copolymerizing the monomers in the presence of a free radical catalyst. The preferred methylpentene-1 is 4-methylpentene-1. The polymerization may be effected batchwise or continuously in aqueous emulsion in the presence of alkali metal or ammonium persulphates, optionally together with promoters, e.g. dodecyl mercaptan, dimethylaniline or sodium metabisulphite, and emulsifiers not likely to hydrolyse the vinyl acetate, e.g. sodium octylbenzene sulphonate, sodium lauryl sulphate, sodium dioctyl sulphosuccinate, ammonium stearate, polyethylene glycol monostearate, sorbitol monostearate and methyl cellulose, and buffers, e.g. alkali metal hydrogen phosphates, and the copolymer precipitated with formic acid, hydrochloric acid or aluminium sulphate. Alternatively polymerization may be effected in bulk in the presence of benzoyl peroxide, lauroyl peroxide, diisopropyl peroxydicarbonate or azodiisobutyronitile and the product recovered by pouring the reaction mixture into methanol or petroleum ether. Examples describe the copolymerization of vinyl acetate and 4-methyl-pentene-1 in aqueous emulsion in the presence of ammonium persulphate, together with (1 to 3, 6 to 8, 11, 11, 17 to 19 and 27) sodium dioctyl sulpho-succinate and tertiarydodecyl mercaptan, (4) sodium dioctyl sulphosuccinate and sodium metabisulphite, (5 and 9) sodium dioctyl sulphosuccinate and (12 to 16) polyethylene glycol monofatty acid ester and tertiary-dodecyl mercaptan; and in bulk in the presence of (20) lauroyl peroxide, (21 to 24) diisopropyl-peroxydicarbonate and (25 and 26) azodiisobutyronitrile.
GB849863A 1963-03-04 1963-03-04 Copolymers Expired GB993764A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB849863A GB993764A (en) 1963-03-04 1963-03-04 Copolymers
FR965812A FR1389151A (en) 1963-03-04 1964-03-02 Methylpentene-1-vinyl acetate copolymer and its production process
NL6402140A NL6402140A (en) 1963-03-04 1964-03-04
BE644693A BE644693A (en) 1963-03-04 1964-03-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB849863A GB993764A (en) 1963-03-04 1963-03-04 Copolymers

Publications (1)

Publication Number Publication Date
GB993764A true GB993764A (en) 1965-06-02

Family

ID=9853620

Family Applications (1)

Application Number Title Priority Date Filing Date
GB849863A Expired GB993764A (en) 1963-03-04 1963-03-04 Copolymers

Country Status (3)

Country Link
BE (1) BE644693A (en)
GB (1) GB993764A (en)
NL (1) NL6402140A (en)

Also Published As

Publication number Publication date
NL6402140A (en) 1964-09-07
BE644693A (en) 1964-09-04

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