| 摘要 |
FIELD: polymer materials. ^ SUBSTANCE: polycarbonate resin composition contains 100 wt parts (A) aromatic polycarbonate resin having weight-average molecular weight between 13000 and 18000, wherein aromatic polycarbonate resin (A) is prepared via subjecting an aromatic dihydroxy compound and carbonic acid ester to reesterification reaction and resin thus obtained is essentially chlorine-free; and 0.01-0.1 wt parts (B) partial ester prepared from saturated aliphatic carboxylic acid having 10-30 carbon atoms and bi- to hexaatomic alcohol, wherein partial ester (B) has acid number between more than 5 and 20 mg KOH. ^ EFFECT: enabled preparation of substrate showing high mechanical strength and capable of suppressing dullness and suitable for high-cyclic formation. ^ 4 cl, 1 tbl, 7 ex |
