| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an automotive cooling system part excellent in fluidity, toughness, low water absorption, and strength and rigidity and furthermore excellent in heat resistance and LLC resistance. <P>SOLUTION: The automotive cooling system part is formed from a polyamide composition including (A) a polyamide produced by polymerizing (a) a dicarboxylic acid containing at least 50 mol% alicyclic dicarboxylic acid and (b) a diamine containing at least 50 mol% diamine having a substituent branched from the main chain and (B) an inorganic filler. In the polyamide, the dicarboxylic acid is preferably 1,4-cyclohexanedicarboxylic acid and the diamine is preferably 2-methylpentamethylenediamine. <P>COPYRIGHT: (C)2011,JPO&INPIT |
