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US09090739B2 Polyamide and polyamide composition 有权
聚酰胺和聚酰胺组合物

Polyamide and polyamide composition
摘要:
(Problems to be solved)Provision of a polyamide composition with good heat resistance, stability under heating, heat resistant color tone stability, reflow heat resistance properties and fogging properties.(Solution)A polyamide obtained by polymerizing (a) a dicarboxylic acid containing at least 50 mol % of an alicyclic dicarboxylic acid and (b) a diamine containing at least 50 mol % of a diamine having a pentamethylenediamine skeleton, wherein the polyamide has a cyclic amino end content of less than 30μ equivalents/g.
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