GB1065656A - Polymerisation process - Google Patents

Polymerisation process

Info

Publication number
GB1065656A
GB1065656A GB3096964A GB3096964A GB1065656A GB 1065656 A GB1065656 A GB 1065656A GB 3096964 A GB3096964 A GB 3096964A GB 3096964 A GB3096964 A GB 3096964A GB 1065656 A GB1065656 A GB 1065656A
Authority
GB
United Kingdom
Prior art keywords
compound
aluminium
group viii
amine
tripropyl
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
GB3096964A
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Publication of GB1065656A publication Critical patent/GB1065656A/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
    • C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F136/02—Homopolymers 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
    • C08F136/04—Homopolymers 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

Abstract

A cis-1,4-polydiene of controlled molecular weight is made by polymerizing a 1,3-diene in anhydrous solution in the presence of a catalyst system comprising a compound of a metal of Group VIII of the Mendeleeff Periodic Table, an organo-metallic compound of aluminium, and a tertiary amine. The amine is present in an amount of up to 7 mole per cent based on the total amount of 1,3-diene, the compound of Group VIII, the aluminium organo-metallic compound, and the tertiary amine. Specified dienes are butadiene, and isoprene. The Group VIII compound may be cobaltous chloride, or nickel dichloride, the aluminium compound, triethyl-, tripropyl-, tri-butylaluminium, or aluminium diethyl chloride, and the amine, triethyl-, tripropyl-, tributyl-, trihexyl-, trioctyl-, tribenzylamine, dimethylaniline, N-methylmorpholine, or pyridine. The polymerization is generally effected in an inert hydrocarbon solvent. During polymerization an alcohol such as methyl alcohol may be present. The polymer is recovered by conventional techniques, e.g. addition of methanol and hydrochloric acid. Cis-1,4-polybutadiene of molecular weight 15,000-50,000, preferably 20,000, is obtained by the process.
GB3096964A 1963-07-27 1964-08-04 Polymerisation process Expired GB1065656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0042115 1963-07-27

Publications (1)

Publication Number Publication Date
GB1065656A true GB1065656A (en) 1967-04-19

Family

ID=7046588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3096964A Expired GB1065656A (en) 1963-07-27 1964-08-04 Polymerisation process

Country Status (1)

Country Link
GB (1) GB1065656A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5451646A (en) * 1994-12-05 1995-09-19 The Goodyear Tire & Rubber Company Technique for reducing the molecular weight and improving the processability of cis-1,4-polybutadiene
US11124589B2 (en) * 2014-10-10 2021-09-21 Bridgestone Corporation Polymerization catalyst composition and method of employing same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5451646A (en) * 1994-12-05 1995-09-19 The Goodyear Tire & Rubber Company Technique for reducing the molecular weight and improving the processability of cis-1,4-polybutadiene
US11124589B2 (en) * 2014-10-10 2021-09-21 Bridgestone Corporation Polymerization catalyst composition and method of employing same

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