| 摘要 |
PROBLEM TO BE SOLVED: To provide an aromatic polycarbonate copolymer excellent in fire retardancy, mechanical physical property and moisture thermal resistance and a manufacturing method therefor.SOLUTION: There is provided an aromatic polycarbonate copolymer having units of the formulae 1 and 2. Molar fraction of the formula 1;6 to 25 mol%, solution specific viscosity;0.30 to 0.50, remaining raw material concentration;≤250 ppm.SELECTED DRAWING: None |
