Process for producing sulfur modified polychloroprene in the pre

Details Process for producing sulfur modified polychloroprene in the pre Process for producing sulfur modified polychloroprene in the pre

1977-04-04

1978-12-19

Henderson, C. A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526204, 526295, C08F 228, C08F13618

Patent

active

041307046

ABSTRACT:
A sulfur modified polychloroprene is produced in a process which comprises polymerizing chloroprene or a mixture of chloroprene and a comonomer in a neutral or acidic aqueous emulsion by using a cationic emulsifier in the presence of sulfur and a peroxide initiator, and then performing a peptization of the resulting sulfur modified polychloroprene latex by addition thereto of an alkaline aqueous solution in amounts sufficient to reduce the pH of the latex to alkaline conditions.

REFERENCES:
patent: 2234215 (1941-03-01), Youker
patent: 2264173 (1941-11-01), Collins
patent: 3766121 (1973-10-01), Fichteman
patent: 3808183 (1974-04-01), Branlard
patent: 3904590 (1975-09-01), Logothetis

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