| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polycarbonate resin composition excellent in surface hardness, heat-resistant moldability, color tone and impact resistance. <P>SOLUTION: The polycarbonate resin composition is characterized in that the polycarbonate resin composition includes at least a polycarbonate resin (a) and a polycarbonate resin (b) having a different structural unit from that of the polycarbonate resin (a), and satisfies the following conditions. (i) The pencil hardness prescribed by ISO 15184 of the polycarbonate resin (a) is higher than the pencil hardness prescribed by ISO 15184 of the polycarbonate resin (b). (ii) The weight ratio of the polycarbonate resin (a) and the polycarbonate resin (b) in the polycarbonate resin composition is in a range of 1:99-45:55. (iii) The melt viscosity at temperature 280°C and shearing speed of 122 sec<SP POS="POST">-1</SP>of the polycarbonate resin (b) is higher than the melt viscosity at temperature 280°C and shearing speed of 122 sec<SP POS="POST">-1</SP>of the polycarbonate resin (a). <P>COPYRIGHT: (C)2012,JPO&INPIT |
