The present invention relates to a polar group-containing olefin copolymer (A′) which is produced through polymerization using a transition metal catalyst, which has a weight-average molecular weight falling within a specific range and which contains a polar group-containing monomer within a specific range; a multinary polar olefin copolymer (A″) indispensably containing a polar monomer component that has a norbornene skeleton and a carboxyl group or an acid anhydride group and having three or more types of monomer units; and a resin composition (C) containing a specific amount of a polar group-containing olefin copolymer (A) and a specific amount of an olefin resin (B).
本发明涉及一种含极性基团的烯烃共聚物(A′),通过使用过渡
金属催化剂聚合制备,其重均分子量在特定范围内,并且包含特定范围内的含极性基团的单体; 一种多元极性烯烃共聚物(A″),不可缺少地包含具有
环戊烯骨架和羧基或酸酐基的极性单体组分,并具有三种或更多种单体单元; 以及一种
树脂组合物(C),其中包含特定量的含极性基团的烯烃共聚物(A)和特定量的烯烃
树脂(B)。