C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 6/16 (2006.01) C08F 6/00 (2006.01) C08F 8/12 (2006.01)
Patent
CA 2062656
HOECHST AKTIENGESELLSCHAFT - Werk KALLE-ALBERT 91/F 095 Abstract of the disclosure: Process for reducing the residual monomer content in aqueous plastics dispersions based on polyvinyl ester 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 resi- dual monomeric vinyl esters which can be hydrolyzed under alkaline conditions and if appropriate oxidation of the acetaldehyde to acetic acid in the aqueous dispersions. Use of the plastics dispersions as binders in low-emis- sion or emission-free aqueous formulations, for example for paints, coatings, plaster mortars, adhesives, sizing agents for paper, binders for non-woven fibers, textile auxiliaries and the like, in particular for applications in interior rooms or in closed rooms.
Huth Hans-Ullrich
Momper Bernhard
Rinno Helmut
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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