| abstract |
The present invention provides a composition comprising as essential ingredients (A) 80 to 95 wt % of a noncrystalline cyclic polyolefin and (B) 20 to 5 wt % of an epoxidized diene-based block copolymer. The composition gives a noncrystalline cyclic polyolefin-based sheet which has a degree of heat distortion ratio of 5% or lower at a thermal welding temperature of 95 to 160° C. The sheet is excellent in moldability, dimensional stability, and strength in welding bonding and is excellent also in impact resistance, flexural resistance, and processability for embossing. |