PURPOSE: An adhesive resin excellent in adhesion to PVC resins and suitable in the production of laminates, obtained by grafting a specified polyolefin resin composition with an unsaturated carboxylic acid (anhydride) in the presence of a radical generator.

CONSTITUTION: A resin composition is prepared by mixing 1W99wt% ethylene/ vinyl acetate copolymer of a vinyl acetate content of 3W50wt% with 99W1wt% ethylene/(meth)acrylate ester copolymer of a (meth)acrylate ester content of 1W 30wt%. 1W99pts.wt. this resin composition is further mixed with 99W1pt.wt. ethylene/α-olefin elastomer. 100pts.wt. resulting resin composition is grafted with an unsaturated carboxylic acid (anhydride) (e.g., acrylic acid or maleic anhydride) in the presence of 0.001W0.5pts.wt. radical generator to obtain the purpose adhesive resin.