IMPACT-RESISTANT CYCLIC OLEFIN BASED RESIN COMPOSITION AND MOLDINGS

摘要

A cyclic olefin based resin composition which comprises a cyclic olefin based resin (A), a modified cyclic olefin based resin (B) prepared by grafting and/or copolymerizing an unsaturated carboxylic acid or an unsaturated carboxylic acid anhydride to the cyclic olefin based resin (A), an olefinic elastomer (C) and a modified polyolefin (D) having an epoxy group, wherein a weight ratio of the component A to the component B, i.e. A/B, is 98/2 to 2/98, a weight ratio of the component C to the component D, i.e. C/D, is 98/2 to 2/98, and a ratio of the total weight of components A and B to the total weight of components C and D, i.e. (A+B)/(C+D), is 95/5 to 50/50. Moldings comprising the cyclic olefin based resin composition are excellent in impact resistance, resistance to flaking off, and the like.