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

1994-07-13

1995-11-21

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523352, 524284, 525197, C08F27902

Patent

active

054687888

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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