Patent ID: 8008381

Claim:
A resin composition comprising (i) 0.0005 to 0.5 part by weight of a heat stabilizer (component S) selected from the group consisting of phosphorus-based heat stabilizers (PS) and hindered phenol-based heat stabilizers (HS), wherein the phosphorus-based heat stabilizer (PS) is at least one compound selected from the group consisting of compounds represented by the following formulas (6), (7), and (8): wherein in the above formulas (6), (7) and (8), —X 1 is a group represented by the formula (5) below: wherein in the above formula (5), R 7 is a hydrogen atom or alkyl group having 1 to 4 carbon atoms, R 8 is an alkyl group having 4 to 6 carbon atoms, and R 9 is at least one group selected from the group consisting of a hydrogen atom, alkyl group having 1 to 10 carbon atoms, and aryl group having 6 to 10 carbon atoms, wherein the hindered phenol-based heat stabilizer (HS) is at least one compound selected from the group consisting of the following formulas (11), (12), (13) and (14): X 3 —R 14 (11) wherein in the above formula (11), —X 3 is a group represented by the formula (10) below, and R 14 is a hydrocarbon group having 8 to 30 carbon atoms, which may contain an oxygen atom, wherein in the above formula (12), —X 3 is a group represented by the formula (10) below, R 15 is a hydrogen atom or alkyl group having 1 to 25 carbons, m is an integer of 1 to 4, and k is an integer of 1 to 4, wherein in the above formula (13), —X 3 is a group represented by the formula (10) below, R 16 , R 17 , R 18 and R 19 are each independently a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and p is an integer of 1 to 4, wherein in the above formula (10), R 11 is a hydrogen atom or alkyl group having 1 to 4 carbon atoms, R 12 is an alkyl group having 4 to 6 carbon atoms, R 13 is at least one group selected from the group consisting of a hydrogen atom, alkyl group having 1 to 10 carbon atoms, cycloalkyl group having 6 to 20 carbon atoms, aryl group having 6 to 10 carbon atoms, and aralkyl group having 7 to 20 carbon atoms, and n is an integer of 1 to 4, wherein in the above formula (14), R 21 is an alkyl group having 4 to 6 carbon atoms, R 22 is an alkyl group having 1 to 4 carbon atoms, R 23 and R 24 are each independently at least one group selected from the group consisting of a hydrogen atom, alkyl group having 1 to 10 carbon atoms, and aryl group having 6 to 10 carbon atoms, and R 25 is at least one group selected from the group consisting of a hydrogen atom, alkyl group having 1 to 10 carbon atoms, aralkyl group having 7 to 20 carbon atoms, acryloyl group and methacryloyl group, (ii) 0.01 to 0.5 part by weight of a mold release agent (component L) which is a monoester of a polyhydric alcohol and a fatty acid, and (iii) 100 parts by weight of a polycarbonate resin (component A) which contains a recurring unit represented by the following formula (1) as the main constituent: