Coagulation

Details Coagulation Coagulation

1983-09-12

1985-02-12

Schofer, Joseph L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

528486, 528487, 528489, C08F 600, C08G 000, C08J 300

Patent

active

044992130

ABSTRACT:
An improved process is provided for the coagulation from the latex of a carboxylated styrenebutadiene polymer, the improvement being adjusting the pH of the latex to between about 6.5 and about 7.5 and adding an emulsifier mixture which contains, based on 100 parts by weight of polymer in the latex, from about 3 to about 6 parts by weight of the alkali metal salt of a fatty acid and from about 1.5 to about 3.5 parts by weight of the alkali metal salt of a rosin acid.

REFERENCES:
patent: 2576909 (1951-12-01), Adams
patent: 2698318 (1954-12-01), Brown
patent: 2857351 (1958-10-01), Carroll
patent: 2870107 (1959-01-01), Reynolds et al.
The Condensed Chemical Dictionary, Hawley, 1971, p. 825.
Compounding Ingredients for Rubber, Rubber World, 1961, p. 86.

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