| 摘要 |
PROBLEM TO BE SOLVED: To provide a molded article with a low photoelastic modulus that is excellent in transparency, thermal resistance and impact resistance. SOLUTION: The molded article includes a resin composition containing as the main component a mixture (X) of an aliphatic polycarbonate resin (A) having a structural unit (a) derived from a dihydroxy compound with a moiety represented by general formula (1) and a structural unit (b) derived from cyclohexane dimethanol and an aromatic polycarbonate resin (B), and has a photoelastic modulus of 7×10<SP>-11</SP>Pa<SP>-1</SP>or lower at a light wavelength of 600 nm. The mixture (X) has a single glass transition temperature, which is as high as or higher than the glass transition temperature of the aliphatic polycarbonate resin (A) and as low as or lower than the glass transition temperature of the aromatic polycarbonate resin (B), (provided that the case where the moiety represented by general formula (1) constitutes a part of -CH<SB>2</SB>-O-H is excluded). COPYRIGHT: (C)2011,JPO&INPIT |
