Resin compositions

Resin compositions which are cross-linkable by high energy radiation and radical polymerization catalysts are provided. The resin compositions are obtained by blending (A) polyester resins and (B) condensates in the ratio of (A)/(B)=90/10 to 10/90, the polyester resin (A) containing side chain radicals which contain at least two ester bonds and at least one α, β -unsaturated olefinic bond obtained by the addition reaction of vinyl monomers containing glycidyl radicals, the condensate (B) consisting of unsaturated carboxylic acid including one (metha-)acryloid radical and one carboxylic radical in its molecules, polyol and/or an (metha-)acrylic vinyl monomer containing hydroxyl radicals, the condensate (B) may consist of a polycarboxylic acid and a (metha-)acrylic vinyl monomer containing hydroxyl radicals. The molecular weight of the polyester resin is preferably 300 to 5,000 and the hydroxyl value 20 to 200. The resin compositions thus obtained can be gelled quickly in a cross-linking process, particularly the process carried out by irradiation with high energy radiation such as ionizing radiation and ultraviolet light, which produces a cross-linked molding having excellent flexibility and adhesiveness. (Iwakiri, K.)