Thermoplastic elastomer composition comprising an agent against the bloom

摘要

A dynamically crosslinked thermoplastic elastomer composition contains (1) a thermoplastic olefin, (2) an elastomeric copolymer of ethylene and a 3-8 C alpha-olefin, optionally containing a diene, (3) a halide of tin, zinc, or calcium, and (4) an organic peroxide curing agent selected from (a) an aromatic peroxide and (b) a combination of an aromatic and an aliphatic peroxide. Injection molded and extruded articles made from the composition do not exhibit blooming.