abstract |
Flowability of a polycarbonate resin or a polyarylate resin during a molding process can be improved without impairing inherent properties of the resins by including a flowability improver containing polyester obtained by polycondensing a bisphenol component and a dicarboxylic acid component, and, optionally, a biphenol component, at specific ratios, a molar ratio of the bisphenol component and the biphenol component to the dicarboxylic acid component being 45: 55 - 55: 45. |