| 摘要 |
PURPOSE: A thermoplastic polyester elastomer resin composition is provided to have a high elasticity and distortion characteristic with an excellent mechanical property, molding processability, and surface property by having a suitable viscosity on extrusion molding and blow molding. CONSTITUTION: A thermoplastic polyester elastomer resin composition comprises multifunctional monomer selected from the chemical equation (1) or (2) below as 0.01-0.1 parts by weight of cross-linking agent and 0.1-2 parts by weight of thermal ageing preventive according to 100 parts by weight of resin. Here, R1 is (C1-3) alkyl or (C6-20) aryl, and R2 is (C1-C3) alkylene, m and n are 3-6 integers, R3 is (C1-3) alkyl or (C6-C20) aryl, and R4 is hydrogen or (C1-3) alkyl. The resin composition comprises 45-60 weight% of acid component, 30-45 weight% of bifuntional alcohol, and 10-20 weight% of average molecular weight 1000-2000 polyalkylene glycol. |
