| 摘要 |
ZINC-SALTS OF CERTAIN MERCAPTO COMPOUNDS AND HINDERED PHENOLS IN OLEFIN POLYMER BASED THERMOPLASTICS ELASTOMERS FOR IMPROVED HEAT AGING Disclosed is an olefin polymer-based thermoplastic elastomer comprising a propylene polymer material, an amorphous olefin copolymer rubber, and optionally a semicrystalline, essentially linear ethylene-C34 alpha-olefin copolymer, having incorporated therein zinc salts of certain mercapto compounds and sterically hindered di-tertiary butyl phenol compounds. The compositions exhibit good retention of properties at elevated temperatures.
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