GB2018782A - (Co)polymerization of conjugated diolefins using a chromium-containing catalyst system - Google Patents

(Co)polymerization of conjugated diolefins using a chromium-containing catalyst system

Info

Publication number
GB2018782A
GB2018782A GB7907994A GB7907994A GB2018782A GB 2018782 A GB2018782 A GB 2018782A GB 7907994 A GB7907994 A GB 7907994A GB 7907994 A GB7907994 A GB 7907994A GB 2018782 A GB2018782 A GB 2018782A
Authority
GB
United Kingdom
Prior art keywords
pentadiene
chromium
cis
catalyst system
isoprene
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.)
Granted
Application number
GB7907994A
Other versions
GB2018782B (en
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.)
Goodyear Tire and Rubber Co
Original Assignee
Goodyear Tire and 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
Priority claimed from US05/893,904 external-priority patent/US4168374A/en
Priority claimed from US05/893,725 external-priority patent/US4148983A/en
Priority claimed from US05/893,724 external-priority patent/US4168357A/en
Application filed by Goodyear Tire and Rubber Co filed Critical Goodyear Tire and Rubber Co
Publication of GB2018782A publication Critical patent/GB2018782A/en
Application granted granted Critical
Publication of GB2018782B publication Critical patent/GB2018782B/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F36/00Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02Homopolymers 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
    • C08F36/04Homopolymers 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

Abstract

There is disclosed a method for homo-polymerizing cis-1,3-pentadiene or copolymerizing it with trans-1,3- pentadiene to prepare cis-1,4 polypentadienes. Other conjugated diolefins, including butadiene, isoprene, 2-ethyl- 1,3-butadiene and 2-methyl-1,3- pentadiene also may be copolymerized with the cis-1,3-pentadiene isomer to prepare elastomeric copolymers. There is also disclosed a method for the copolymerization of isoprene with trans-1,3-pentadiene. The polymerization catalyst employed in all of these polymerizations is a ternary catalyst system comprising (a) an organometallic compound selected from aluminum trialkyls, magnesium dialkyls and zinc dialkyls, (b) a soluble chromium compound selected from chromium salts of organic acids containing from 2 to 20 carbon atoms, organic complex compounds of chromium containing tridentate ligands and pi -bonded organochromium compounds, and (c) a member selected from dialkyl hydrogen phosphites, diaryl hydrogen phosphites and tris(2-chloro ethyl) phosphite.
GB7907994A 1978-04-05 1979-03-07 (co) polymerization of conjugated diolefins using a chronium-containing catalyst system Expired GB2018782B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/893,904 US4168374A (en) 1978-04-05 1978-04-05 Copolymerization of conjugated diolefins using a chromium-containing catalyst system
US05/893,725 US4148983A (en) 1978-04-05 1978-04-05 Polymerization and copolymerization of trans-piperylene and isoprene
US05/893,724 US4168357A (en) 1978-04-05 1978-04-05 Preparation of high cis-1,4-polypentadiene

Publications (2)

Publication Number Publication Date
GB2018782A true GB2018782A (en) 1979-10-24
GB2018782B GB2018782B (en) 1982-08-04

Family

ID=27420550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7907994A Expired GB2018782B (en) 1978-04-05 1979-03-07 (co) polymerization of conjugated diolefins using a chronium-containing catalyst system

Country Status (7)

Country Link
JP (1) JPS54135884A (en)
BR (1) BR7902011A (en)
DE (1) DE2911307A1 (en)
FR (1) FR2421916A1 (en)
GB (1) GB2018782B (en)
IT (1) IT1116536B (en)
NL (1) NL7902612A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3538130A1 (en) * 1985-10-26 1987-04-30 Bunawerke Huels Gmbh METHOD AND CATALYST FOR PRODUCING SYNDIOTACTIC 1,2-POLYBUTADIENE
US6348550B1 (en) * 2000-04-13 2002-02-19 Bridgestone Corporation Molybdenum-based catalyst composition and process for controlling the characteristics of conjugated diene polymers

Also Published As

Publication number Publication date
JPS54135884A (en) 1979-10-22
NL7902612A (en) 1979-10-09
IT1116536B (en) 1986-02-10
GB2018782B (en) 1982-08-04
FR2421916A1 (en) 1979-11-02
DE2911307A1 (en) 1979-10-25
BR7902011A (en) 1979-11-27
IT7948570A0 (en) 1979-04-02

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Legal Events

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PCNP Patent ceased through non-payment of renewal fee