Patent ID: 8058334

Claim:
A polyester resin composition comprising (a) an aromatic polyester resin, (b) one or more sulfonamide compound metal salt having a structure represented by the following general formula (1): (in the formula (1), R 1 and R 2 each independently represent a hydrogen atom, a halogen atom, an alkali metal atom, an amino group, a branched or linear alkyl group which may have substituents and has 1 to 10 carbon atoms, a branched or linear alkoxy group which may have substituents and has 1 to 10 carbon atoms, or a cyclic group which may have substituents and has 3 to 30 carbon atoms; R 1 and R 2 may be bonded together to form a cyclic group; M 1 represents a halogen atom, an alkali metal atom or Al(OH 2 ) 2 ), (c) an aliphatic carboxylic acid diester compound of polyalkylene glycol represented by the following general formula (4): (in the formula (4), G represents an alkylene group having 2 to 4 carbon atoms; R 4 and R 5 each independently represent an alkyl or alkenyl group having 1 to 14 carbon atoms; m represents a integral number of 2 to 30), wherein the aliphatic carboxylic acid diester compound of polyalkylene glycol is mixed in an amount of 0.5 to 15 parts by mass relative to 100 parts by mass of the aromatic polyester.