发明授权
US5081222A Partly aromatic copolyamide of reduced triamine content 失效
减少三聚氰胺含量的一部分芳香族共聚酰胺

Partly aromatic copolyamide of reduced triamine content
摘要:
Partly aromatic copolyamides contain as essential componentsA) 40-90% by weight of units derived from terephthalic acid and hexamethylenediamine,B) 0-50% by weight of units derived from .epsilon.-caprolactam andC) 0-60% by weight of units derived from adipic acid and hexamethylenediamine,the components B) and/or C) accounting for a total of not less than 10% by weight of the total units and the copolyamide having a triamine content of less than 0.5% by weight.
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