Modified alpha -olefin polymer having tertiary carbon in side chain, and stretched film produced thereof

摘要

A modified alpha -olefin polymer whose side chain has tertiary carbon, obtained by melt-reacting 100 parts by weight of (A) an alpha -olefin polymer whose side chain has tertiary carbon with (B) 0.05 to 10 parts by weight of metal methacrylate or metal acrylate of the formula (1), <IMAGE> (1) wherein R is a hydrogen atom or a methyl group, M is a metal cation, X is an anion, m is an integer of at least 2, and n is an integer of at least 2, with a proviso of m>/=n; and a stretched film thereof.