Document Type and Number:
Japanese Patent JPS6160094
Kind Code:
B2
Abstract:
1520053 Norbornene polymers B F GOODRICH CO 15 April 1976 [17 April 1975] 15434/76 Heading C3P A process for the production of a substantially gel-free copolymer comprises polymerizing (a) norbornene-type monomer of the formula:- wherein X is H or alkyl (C1-6) with (b) 0-95%, by weight based on the total polymer weight, of dicyclopentadiene, in the presence of (c) at least one non-conjugated acyclic olefin having at least one hydrogen on each double bonded carbon atom and (d) a catalyst comprising:- (1) at least one compound selected from dialkylaluminium iodides, alkyl-aluminium diioxides and mixtures of trialkylaluminium compounds with elemental iodine; (2) at least one dialkyl aluminium chloride or alkyaluminium dichloride; and (3) at least one tungsten compound soluble in the monomer mixture or in a soluble, components (1) and (2) being charged before (3). The specific examples describe copolymers of (a) 2-norbornene, or 5-methyl-2- norbornene, (b) dicyclopentadiene and (c) 1-butene using a mixture of diethylaluminium iodide, ethylaluminium dichloride and tungsten hexachloride as catalyst.
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Inventors:
ROBAATO JON MINCHAKU
Application Number:
JP4018376A
Publication Date:
December 19, 1986
Filing Date:
April 09, 1976
Export Citation:
Assignee:
GOODRICH CO B F
International Classes:
C08F4/00; C08F4/44; C08F4/60; C08F4/62; C08F4/80; C08F32/00; C08F232/04; C08F232/08; C08G61/00; C08G61/06; C08G61/08