Polycarbonate resin composition

A polycarbonate resin composition comprising a melt mixture of:

• (A) 1 to 99 parts by weight of polycarbonate resin having a viscosity average molecular weight of 10,000 to 100,000;
• (B-2) a copolymer having as its component parts (a) an aromatic vinyl monomer component and (b) a cyanide vinyl monomer component, the aforementioned (B-2) being a copolymer having a weight average molecular weight of 30,000 to 200,000 and having a sodium ion concentration of 1 ppm or less and a potassium ion concentration of 1 ppm or less;
• (C) a phosphoric ester compound selected from bisphenol A tetraphenyldiphosphate, bisphenol A tetracresyldiphosphate, and bisphenol A tetraxylyldiphosphate, wherein the phosphoric ester compound has an acid value of 1 or less and is present in an amount of from 1 to 40 parts by weight with respect to a total of 100 parts by weight of components (A) and (B-2);
• and
• (E) an epoxy stabilizer in an amount of from 0.01 to 10 parts by weight with respect to a total of 100 parts by weight of components (A) and (B-2).

A polycarbonate resin composition, comprising a mixture of:

• (A) 67.5 to 85 parts by weight of polycarbonate resin having a viscosity average molecular weight of 10,000 to 100,000;
• and
• (B-1) 10 to 20 parts by weight of a copolymer having as its component parts (a) an aromatic vinyl monomer components, (b) a cyanide vinyl monomer component, and (c) a rubber-like polymer;
• wherein copolymer (B-1) has a sodium ion concentration of 1 ppm or less and a potassium ion concentration of 1 ppm or less;
• and
• (C) a bisphenol A tetraphenyldiphosphate having an acid value of 1 or less, present in an amount of 4.7 to 13.7 parts by weight with respect to a total of 100 parts by weight of components (A) and (B).