Latex coagulation process

Details Latex coagulation process Latex coagulation process

C - Chemistry, Metallurgy

08

F

400/1403, 402/45

C08F 6/22 (2006.01) C08C 1/14 (2006.01) C08F 236/10 (2006.01)

Patent

CA 1059696

ABSTRACT OF THE DISCLOSURE Synthetic styrene-conjugate diolefin polymers, e.g. SBR rubbers, are recovered form their aqueous polymeri- zation emulsion by coagulation with acid and a lignin com- pound. The conventional use of sodium chloride as a coagu- lant is avoided so as to overcome the problem of sodium chloride in the effluent. By this process of the invention, a rubber crumb of increase porosity is obtained, which is easier to dry.

222661

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