| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyester resin composition of a PBT matrix which is flexible and is excellent in blow moldability without impairing excellent physical properties of a PBT resin such as heat resistance and chemical resistance by softening polybutylene terephthalate (PBT) and simultaneously controlling its viscosity, and suppressing gelation caused by extrusion and residence.SOLUTION: A polyester resin composition contains 0.1-5 pts.mass of a core-shell type elastomer (D) and 0.1-5 pts.mass of a styrene-glycidyl acrylate-based copolymer (E) based on 100 pts.mass of a resin composition made of 60-90 pts.mass of a polybutylene terephthalate resin (A), 0-25 pts.mass of a modified olefin-based resin (B), and 0-25 pts.mass of a crystalline polyester elastomer (C).SELECTED DRAWING: None |
