PURPOSE: To provide titled composition in good balance between tensile strength and tensile elongation, suitable for coatings or adhesives for paper, leather, metal, textiles, resin, etc., comprising chloroprene polymer, acrylic polymer and hydrazine derivative having two or more hydrazine residues.

CONSTITUTION: The objective composition comprising (A) 100pts.wt. of chloroprene polymer, (B) 0W300pts.wt. of an acrylic polymer (preferably, carbonyl group-contg. one derived from methyl methacrylate, etc.) and (C) 0.05W10pts.wt. of a hydrazine derivative having two or more hydrazine residues (pref. polycarboxylic acid dihydrazide).