Patent ID: 11015054

Abstract:
Flame retardant polyamide compositions comprise (A) a semi-crystalline semi-aromatic polyamide having a melting temperature (TmA) and having a number average molecular weight in the range between 7,500 and 30,000 g/mol; (B) a semi-crystalline aliphatic polyamide having a melting temperature (TmB); and having a number average molecular weight in the range between 7,500 and 50,000 g/mol; and (C) a halogen free flame retardant system comprising a metal salt of a phosphinic acid and/or a diphosphinic acid, wherein TmA is higher than TmB and weight ratio of (A):(B) is in the range between 50:50 and 75:25. Process for moulding the flame retardant polyamide composition, and moulded parts made of the flame retardant polyamide composition are also provided.