| 摘要 |
PURPOSE:To obtain a polyester elastomer composition excellent in injection moldability and sliding properties and useful for mechanical parts by mixing a copolymer based on an aromatic dicarboxylic acid, an aliphatic diol and a poly(alkylene oxide) glycol with a silicone resin. CONSTITUTION:100 pts.wt. polyester elastomer [based on the three components of an aromatic dicarboxylic acid and its esterifiable derivative (a), an aliphatic diol and its esterifiable derivative (b) and a poly(alkylene oxide) glycol (c) (of a number-average mol.wt. of 500-6000) and having a component (c) content of 10-80wt.%] is mixed with 0.1-15 pts.wt. silicone resin (of a mol.wt. of 30000 or more) to obtain a polyester elastomer composition useful for mechanical parts such as gears, cams or rollers. |
