Agglomeration of latices by organic acid--anhydride mixtures

Details Agglomeration of latices by organic acid--anhydride mixtures Agglomeration of latices by organic acid--anhydride mixtures

1995-10-06

1997-05-27

Warzel, Mark L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

525 71, 525315, 525316, 523335, 523352, C08K 509, C08F27900

Patent

active

056333048

ABSTRACT:
A process is provided for agglomerating small rubber particles in an aqueous latex to form large rubber particles. The process involves the addition of a water soluble organic acid and a water soluble organic anhydride to the latex prior to agglomeration of the rubber particles to facilitate agglomeration of the rubber particles into large rubber particles which are essentially free of coagulum. The latex of large rubber particles is useful in the preparation of ABS polyblends.

REFERENCES:
patent: 3509237 (1970-04-01), Aubrey
patent: 3551370 (1970-12-01), Dalton
patent: 3558541 (1971-01-01), Dalton
patent: 3652721 (1972-03-01), Dalton et al.
patent: 3793403 (1974-02-01), Dalton et al.
patent: 4336355 (1982-06-01), Wu
patent: 4385157 (1983-05-01), Auclair et al.
patent: 5221713 (1993-06-01), Kempner et al.
Dalton, J., Coll. Inter. Sci, Rubber Latex Agglomeration by Acid Anhydride Addition, v. 43, No. 2, 339 (1973).

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