Process for reducing the residual monomer content in aqueous pla

Details Process for reducing the residual monomer content in aqueous pla Process for reducing the residual monomer content in aqueous pla

1993-12-22

1995-09-26

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528490, C08F 616

Patent

active

054534852

ABSTRACT:
Preparation of aqueous plastics dispersions which contain vinyl ester polymers or vinyl ester copolymers and have reduced contents of undesirable preparation-related residual monomeric vinyl esters and, where appropriate, acetaldehyde, from corresponding starting dispersions such as are obtainable by customary polymerization or copolymerization methods from ethylenically unsaturated monomers, by selective alkaline hydrolysis of the residual monomeric vinyl esters which can be hydrolyzed under alkaline conditions and if appropriate oxidation of the acetaldehyde to acetic acid in the aqueous dispersions.

REFERENCES:
patent: 2265937 (1941-12-01), Dittmar
patent: 4220754 (1980-09-01), Feldman
patent: 4278582 (1981-07-01), Miller

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