GB919244A - A polymerization process - Google Patents

A polymerization process

Info

Publication number
GB919244A
GB919244A GB3506761A GB3506761A GB919244A GB 919244 A GB919244 A GB 919244A GB 3506761 A GB3506761 A GB 3506761A GB 3506761 A GB3506761 A GB 3506761A GB 919244 A GB919244 A GB 919244A
Authority
GB
United Kingdom
Prior art keywords
butadiene
catalyst
titanium tetrabromide
polybutadiene
weight
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
GB3506761A
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.)
Uniroyal Inc
Original Assignee
United States Rubber 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 United States Rubber Co filed Critical United States Rubber Co
Publication of GB919244A publication Critical patent/GB919244A/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
    • C08F136/06—Butadiene

Abstract

Polybutadiene is made by forming a catalyst by mixing titanium tetrabromide and an aluminium compound of the formula AlR3 where R is an alkyl or aralkyl radical, optionally in an inert hydrocarbon solvent, "ageing" the catalyst thus formed for 3 to 200 minutes at a temperature from 0 DEG to 60 DEG C., forming a solution of the "aged" catalyst, 1,3-butadiene, and an inert solvent, and polymerizing the solution at a temperature of 0 DEG to 60 DEG C. The solvent comprises an aromatic hydrocarbon which is present in an amount of from 20 to 500 parts by weight per 100 parts by weight of 1,3-butadiene, and the weight ratio of 1,3-butadiene to titanium tetrabromide is from 1,000:1 to 6,000:1, whilst the molar ratio of AlR3 to titanium tetrabromide is from 1,75:1 to 5:1. The exemplified aluminium compound is aluminium tri-isobutyl. The polybutadiene has a cis-1,4 content of over 70%.
GB3506761A 1961-03-13 1961-09-29 A polymerization process Expired GB919244A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9502861A 1961-03-13 1961-03-13

Publications (1)

Publication Number Publication Date
GB919244A true GB919244A (en) 1963-02-20

Family

ID=22248770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3506761A Expired GB919244A (en) 1961-03-13 1961-09-29 A polymerization process

Country Status (4)

Country Link
BE (1) BE612048A (en)
GB (1) GB919244A (en)
LU (1) LU41043A1 (en)
NL (1) NL271178A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976630A (en) 1955-10-17 1976-08-24 Phillips Petroleum Company Process and catalyst for production of rubbery polymers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976630A (en) 1955-10-17 1976-08-24 Phillips Petroleum Company Process and catalyst for production of rubbery polymers

Also Published As

Publication number Publication date
NL271178A (en)
BE612048A (en)
LU41043A1 (en) 1962-03-02

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