| 摘要 |
PROBLEM TO BE SOLVED: To obtain a molding material comprising a thermoplastic norbornene- based resin capable of producing a molding excellent in impact strength compared with a conventional thermoplastic norbornene-based resin. SOLUTION: This resin composition is obtained by blending 100 pts.wt. thermoplastic norbornene-based resin (e.g. hydrogenated material of a ring opening polymer of 1,4-methano-1,4,4a,9a-tetrahydrofluorene) with 1-60 pts.wt. hydrogenated styrene-based block copolymer and sufficiently kneading the blend. The resin composition has a multilayer structure comprising a resin layer having <=100nm thickness in the part ranging to at least 1μm depth from the surface and a copolymer layer having <=100nm thickness in solidified state. |
