Process for producing granular composition of ethylenethiourea-c

Details Process for producing granular composition of ethylenethiourea-c Process for producing granular composition of ethylenethiourea-c

1984-04-30

1987-01-27

Henderson, Christopher

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

Synthetic resins

Treating polymer containing material or treating a solid...

525348, 528487, C08C 100, C08K 536

Patent

active

046395083

ABSTRACT:
A granular composition of ethylenethiourea-chloroprene rubber is produced by adding dropwise a mixture of chloroprene rubber latex and ethylenethiourea at a ratio of 5-100 wt. % per rubber of said rubber latex and a macromolecular polyanion having carboxyl group or hydroxyl group at a ratio of 2-8 wt. % per rubber of said rubber latex lower than 10.degree. C. into an aqueous solution containing at least one of alkaline earth metal salt at lower than 10.degree. C. for form granule and then, dehydrating and drying the granule.

REFERENCES:
patent: 2844564 (1958-07-01), Hayes
patent: 2888444 (1959-05-01), Roberts
patent: 3012985 (1961-12-01), Zakheim
patent: 3179637 (1965-04-01), Brodt
patent: 4031302 (1977-06-01), Shimizu

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