Stable polyvinyl ester dispersions and methods of producing the

Details Stable polyvinyl ester dispersions and methods of producing the Stable polyvinyl ester dispersions and methods of producing the

1974-10-02

1976-05-04

Schain, Howard E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 174ST, C08L 302

Patent

active

039546870

ABSTRACT:
An improvement in the production of polyvinyl ester dispersions by polymerization of vinyl esters or copolymerization of vinyl esters with up to 40% by weight of oil-soluble, mono-olefinically-unsaturated monomers in an aqueous emulsion in the presence of water-soluble radical-forming polymerization catalysts, protective colloids and optionally emulsifiers and polymerization aids, the improvement comprising using carboxymethyl celluloses having a substitution degree of at least 10 as said protective colloids; as well as stable mixtures of the said polyvinyl ester dispersions and dextrin.

REFERENCES:
patent: 2508341 (1950-05-01), Wilson
patent: 3769248 (1973-10-01), Kovats
patent: 3817896 (1974-06-01), Bergmeister
Chem. Absts. Vol. 76 (1972): 87267h, Viscosity Stabilization . . . Ethers, Davis.

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