THERMOPLASTIC POLYESTER RESIN COMPOSITION AND MOLDED OBJECT OBTAINED THEREFROM

摘要

A thermoplastic polyester resin composition in which the thermoplastic polyester resin has an efficiently heightened melt viscosity. The composition hence has stable processability in extrusion, blow molding, and calendering, especially in extrusion for producing profile shapes, boards, pipes, etc., and can give a molding having satisfactory surface properties and excellent impact resistance. A hundred parts by weight of a thermoplastic polyester resin (A) is compounded with 0.1 to 50 parts by weight of a thickener (B) for thermoplastic polyester resins which has a weight-average molecular weight of 1,000 to 400,000 and is obtained by polymerizing 3 to 95 wt.% epoxidized alkyl (meth)acrylate (a), 5 to 97 wt.% other alkyl (meth)acrylate (b), and 0 to 92 wt.% other vinyl monomer (c) copolymerizable with these and 1 to 50 parts by weight of a core/shell type graft polymer (C). The resultant composition shows stable processability in extrusion and gives a molded article having satisfactory surface properties and excellent impact resistance.