Method for producing de-watered grafted rubber concentrate

Details Method for producing de-watered grafted rubber concentrate Method for producing de-watered grafted rubber concentrate

1987-11-06

1989-08-15

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528502, 525 70, 525 86, 525197, 525242, 525243, 525313, 525314, C08F 622, C08L 904, C08L 910

Patent

active

048576310

ABSTRACT:
The specification discloses a readily de-waterable modified rubber concentrate and method for forming same from a process including the preparation of a latex emulsion of the modified rubber concentrate, insuring that the emulsified modified rubber concentrate has a rubber content of from about 57 to about 88% by weight and freeze coagulating the modified rubber concentrate from the emulsion.

REFERENCES:
patent: 2396907 (1946-03-01), Wolk et al.
patent: 3296178 (1967-01-01), Sutherland, Jr.
patent: 4401806 (1983-08-01), Hagiwara et al.
Williams, Emulsion Polymerization, Polymer Processes Schildznecht (ed.) Interscience, N.Y. (1956) pp. 134, 149.
Burlant et al., Block and Graft Copolymers, Reinhold Pub. Corp., N.Y. (1960) p. 14.
Hackh's Chem. Dict., J. Grant (ed.), McGraw-Hill (N.Y.), p. 624 (1969).

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