GB978874A - Process for preparing olefin copolymers - Google Patents

Process for preparing olefin copolymers

Info

Publication number
GB978874A
GB978874A GB4541162A GB4541162A GB978874A GB 978874 A GB978874 A GB 978874A GB 4541162 A GB4541162 A GB 4541162A GB 4541162 A GB4541162 A GB 4541162A GB 978874 A GB978874 A GB 978874A
Authority
GB
United Kingdom
Prior art keywords
aluminium
vanadium
ethylene
butadiene
buten
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
GB4541162A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of GB978874A publication Critical patent/GB978874A/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
    • C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F236/02—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
    • C08F236/04—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

Conjugated diolefins are copolymerized with ethylene and/or a higher a -olefin of formula CH2=CH R in which R is an alkyl group containing 1 to 6 carbon atoms using as a catalyst the reaction product of a hydrocarbon-soluble vanadium compound and a metallorganic aluminium compound in which at least one valency of the aluminium is saturated with an unsaturated hydrocarbon group and at least one of the valencies of the vanadium and/or the residual valencies of the aluminium are saturated with a halogen atom. Examples show the polymerization of butadiene or isoprene with ethylene and propylene and butadiene with ethylene alone. The catalyst systems exemplified are vanadium tetrachloride with aluminium diisobutyl 4-methyl-penten-1-yl, aluminium diethyl buten-1-yl, aluminium di-n-hexyl-n-octen-1-yl, aluminium diisobutyl-hexen-3-yl, and vanadium triacetyl-acetonate and aluminium ethyl-buten-1-yl-chloride. Polymerization is carried out in solution in a hydrocarbon solvent and may be stopped by the addition of phenyl beta naphthylamine in methanol. The products may have trans-1, 4-enchainment of the butadiene content. The products are elastomeric and may be vulcanized with a conventional sulphur containing recipe.
GB4541162A 1961-12-05 1962-11-30 Process for preparing olefin copolymers Expired GB978874A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2188761 1961-12-05
IT335562 1962-02-20

Publications (1)

Publication Number Publication Date
GB978874A true GB978874A (en) 1964-12-23

Family

ID=26325350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4541162A Expired GB978874A (en) 1961-12-05 1962-11-30 Process for preparing olefin copolymers

Country Status (8)

Country Link
AT (1) AT242943B (en)
BE (1) BE625658A (en)
CH (1) CH434759A (en)
CS (1) CS155128B2 (en)
DE (1) DE1302162B (en)
ES (1) ES283101A1 (en)
GB (1) GB978874A (en)
NL (1) NL286121A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670055A (en) * 1969-04-02 1972-06-13 Goodrich Co B F Compositions comprising a mixture of sulfur-vulcanizable ethylene/propylene/dicyclopentadiene copolymers with sulfur vulcanizable ethylene/propylene/butadiene copolymers
DE2252906A1 (en) * 1971-10-27 1973-05-03 Snam Progetti PROCESS FOR THE PRODUCTION OF AETHYLENE-BUTADIENE MIXED POLYMERIZES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3670055A (en) * 1969-04-02 1972-06-13 Goodrich Co B F Compositions comprising a mixture of sulfur-vulcanizable ethylene/propylene/dicyclopentadiene copolymers with sulfur vulcanizable ethylene/propylene/butadiene copolymers
DE2252906A1 (en) * 1971-10-27 1973-05-03 Snam Progetti PROCESS FOR THE PRODUCTION OF AETHYLENE-BUTADIENE MIXED POLYMERIZES

Also Published As

Publication number Publication date
BE625658A (en)
CH434759A (en) 1967-04-30
ES283101A1 (en) 1963-07-01
DE1302162B (en) 1970-05-27
CS155128B2 (en) 1974-05-30
NL286121A (en)
AT242943B (en) 1965-10-11

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