| abstract |
PURPOSE: To obtain the titled composition having excellent adhesivity to polyolefin molded article, metal, wood, etc., by compounding an ethylene polymer, etc. to a modified polypropylene grafted with an unsaturated carboxylic acid, etc. and unmodified polypropylene. n CONSTITUTION: A mixture of (A) a modified crystalline polypropylene grafted with an unsaturated carboxylic acid (anhydride) (preferably maleic anhydride) and (B) an unmodified crystalline polypropylene, is mixed with one or more compounds selected from (C) an ethylene polymer (preferably a low density polyethylene, etc.) and (D) a styrene copolymer (preferably styrene-butadiene copolymer elastomer, etc.), under melting preferably at 170W250°C to obtain the objective composition. The component A is preferably the one having a grafting ratio of the unsaturated carboxylic acid (anhydride) of 0.1W4wt%, and containing 0.1W1wt% said unsaturated carboxylic acid (anhydride) as free state. n COPYRIGHT: (C)1985,JPO&Japio |