Stable aqueous emulsions comprising acrylate polymers and...

Details Stable aqueous emulsions comprising acrylate polymers and... Stable aqueous emulsions comprising acrylate polymers and...

C - Chemistry, Metallurgy

08

L

117/203, 400/904

C08L 33/06 (2006.01) C08F 220/12 (2006.01) C09D 5/02 (2006.01) C09D 133/06 (2006.01)

Patent

CA 1058790

ABSTRACT OF THE DISCLOSURE Stable aqueous emulsions are described which are free from conventional emulsifiers and protective colloids and contains as the dispersed phase uniformly- sized particles of a copolymer of at least 75% by weight of acrylate monomer(s) or a mixture of acrylate monomer(s) and a vinyl monomer, optionally together with up to 10% by weight of the acrylate monomer(s) or the mixture, of a copolymerizable monomer having at least one functional group which is a carboxyl, hydroxyl, amino or epoxy group and/or ethylenic unsaturation other than the copolymerizable group, and up to 25% by weight of a mono- ester of an unsaturated dicarboxylic acid. The emulsions are formed by copolymerizing the monomers in an aqueous medium which is free from conventional additives including buffers, emulsifiers, stabilizing colloids and chain terminating compounds. The emulsions are particularly useful in formulating water-based air-drying high gloss paints.

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