To obtain the subject composition excellent in mechanical strength characteristics, water resistance and chemical resistance, comprising a polyurethane polymer and a low-molecular weight unsaturated polyester compound.
This composition comprises (A) 10-90wt.% of a polyurethane polymer which is composed of three components of a polyol, a polyisocyanate and a hydroxy group-containing vinyl ether compound as essential components and contains at least one or more vinyl ether groups, (B) 10-90wt.% of a low- molecular weight unsaturated polyester compound and optionally (C) 0-70wt.% of one or more monomers selected from a vinyl ether compound, a (methy) acrylic acid derivative and a vinyl carboxylic acid compound. Preferably, the polyol of the component A is a polyol using a polyalkylene oxide and the component B is an unsaturated acid dialkyl ester.
FUKAKUSA KUMIKO
MITANI TOMOMASA
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