CYCLIC OLEFIN RESIN COMPOSITION

摘要

Disclosed is a cycloolefin resin composition which is controlled in flexibility of a cycloolefin resin and can be molded at a temperature higher than 140°C. Also disclosed are a cycloolefin resin film, a cycloolefin resin preform and the like using such a cycloolefin resin composition. Specifically disclosed is a cycloolefin resin composition containing two or more cycloolefin copolymer resins having Tg values different from each other by 10°C or more. The storage modulus at 120°C (E' 120 ) relative to the storage modulus at 50°C (E' 50 ), namely E' 120 /E' 50 is set within the range of 0.15-0.65.