Process for producing thermoplastic elastomer

摘要

PCT No. PCT/JP91/00194 Sec. 371 Date Oct. 18, 1991 Sec. 102(e) Date Oct. 18, 1991 PCT Filed Feb. 18, 1991 PCT Pub. No. WO91/12283 PCT Pub. Date Aug. 22, 1991.A process for producing a thermoplastic elastomer having excellent elasticity even with a small rubber content and being excellent in strength, coatability and thermal adhesion to different materials such as various resins, metals or the like, which comprises melting and kneading a material mixture containing (A) particles of a polymer composed of a crystalline olefin polymer portion and a noncrystalline olefin polymer portion, (B) a graft-modifier and (C) a radical initiator to form a graft-modified and crosslinked thermoplastic elastomer having a cyclohexane-insoluble content of at least 40% by weight; and a thermoplastic elastomer obtained by the above method.