Low shrink water extended vinyl ester resin emulsion

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

400/3023, 400/65

C08L 63/10 (2006.01)

Patent

CA 1038988

ABSTRACT This invention concerns a water-in-resin emulsion. The resin phase comprises a mixture of 1) a terminally unsaturated vinyl ester resin prepared by reaction of a polyepoxide with an ethylenically unsaturated monocarboxylic acid, 2) a copolymerizable alkenylaromatic monomer, and 3) from 0.5 to 20 weight percent of a copolymer of a monoalkenylaromatic monomer, an alkyl acrylate or methacrylate, and optionally a hydroxyalkyl acrylate or methacrylate, which copolymer is soluble in the resin phase. The copolymer serves as a dimension control agent to reduce shrinkage during curing of the emulsion.

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