Process for the production of storable...

Details Process for the production of storable... Process for the production of storable...

C - Chemistry, Metallurgy

08

C

402/340, 400/810

C08C 19/20 (2006.01) C08C 19/08 (2006.01) C08F 36/18 (2006.01)

Patent

CA 1147896

A b s t r a c t A process for the production of storable 2-chloro- 1,3-butadiene/sulphur copolymers by peptisation using sulphur containing petising agents, wherein a compound corresponding to the following general formula:.sigma. R1-Sn-R1 wherein n represents an integer having a value of from 2 to 10, preferably from 3 to 8 and, more particularly, from 4 to 6; and R1 represents a C6-C14 aryl radical, a C6-C14 aryl-C1-C3 alkyl radical or a heterocycle containing from 1 to 3 hereto atoms, such as N, which may be the same or different and which may optionally be substituted; optionally in combination with a nucleophilic sub- stance, is added to the latex and peptised at from 5 to 100°C and at a pH of from 14 to 3.

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