C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
400/2045, 402/45
C08F 2/38 (2006.01) C08F 12/06 (2006.01) C08F 36/04 (2006.01) C08L 61/34 (2006.01)
Patent
CA 1141881
ABSTRACT OF THE DISCLOSURE A process for producing carbo-chain homopolymers, block- and random copolymers of conjugated dienes and vinylaromatic monomers comprising polymerization of dienes, vinyl- or di- vinylaromatic monomers or copolymerization thereof in a medium of a hydrocarbon solvent at a temperature ranging from -30 to +150°C in the presence of an organolithium catalyst of the formula R(Li)X, wherein R is a hydrocarbon radical or a diene polymer, x is an integer of from 1 to 4, and a modifying ad- ditive which is a compound comprising a product of interac- tion between a phenolamine resin and an alkali metal and hav- ing the general formula: Image wherein n is an integer of from 1 to 10; M is sodium or potassium; R is an alkyl with 2 to 20 carbon atoms or an aryl- alkyl with 7 to 20 carbon atoms; R1 is an alkyl with 1 to 6 carbon atoms, an arylalkyl with 7 to 9 carbon atoms or hydrogen; this modifying additive is used in an amount of from 0.07 to 2.0 g/equiv. per one g/equiv. of active lithium.
332666
Judin Viktor P.
Kashkina Nadezhda K.
Korbanova Zinaida N.
Kosovtsev Vladimir V.
Kovtunenko Leonid V.
Judin Viktor P.
Kashkina Nadezhda K.
Korbanova Zinaida N.
Kosovtsev Vladimir V.
Kovtunenko Leonid V.
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