Aromatic polycarbonate resin composition
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsYoshinori Isahaya, Atsushi Hirashima, Hidefumi Harada, Maki Ito, Jun-ya Hayakawa, Takehiko Isobe, Taichi Tokutake, Yousuke Shinkai
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Abstract
The present invention provides an aromatic polycarbonate resin composition having a high molecular weight and less amount of a heterologous structure, retaining good qualities, and excellent in thermal stability, and an improved preparation process thereof.
Claims11
An aromatic polycarbonate resin composition which comprises a structural unit represented by the following formula (II), and at least one of structural units represented by the following formulae (1) and (2), wherein either of the structural units represented by the formulae (1) and (2) is contained in an amount of 2000 ppm or less in terms of a diphenolic acid, and a cyclic carbonate represented by the following formula (h3) is contained in an amount of 3000 ppm or less:
- wherein R1 and R2 each independently represent a halogen atom, an alkyl group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a cycloalkyl group having 6 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, a cycloalkoxy group having 6 to 20 carbon atoms or an aryloxy group having 6 to 20 carbon atoms, p and q each represent an integer of 0 to 4, X represents a single bond or a group selected from the group of the following (II′);
- wherein R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or an aryl group having 6 to 10 carbon atoms, or R3 and R4 may be bonded to each other to form an aliphatic ring;
- wherein X is the same as defined in the formula (II);
- wherein Ra and Rb each independently represent a hydrogen atom, a halogen atom, a linear or branched alkyl group having 1 to 30 carbon atoms which may contain an oxygen atom or a halogen atom, a cycloalkyl group having 3 to 30 carbon atoms which may contain an oxygen atom or a halogen atom, an aryl group having 6 to 30 carbon atoms which may contain an oxygen atom or a halogen atom, or an alkoxy group having 1 to 15 carbon atoms which may contain an oxygen atom or a halogen atom, or Ra and Rb may be bonded to each other to form a ring.
Dependencies are inferred from the claim text.