Polyamide moulded masses containing semi-crystalline transparent copolyamides for producing highly flexible transparent moulded parts with high notch-impact strength, low water absorbency and excellent resistance to chemicals

摘要

The invention relates to polyamide molding material for the production of transparent or colorable moldings with high flexibility, high notched impact strength (Charpy), low water absorption and excellent chemical resistance, comprising at least one partly crystalline, transparent copolyamide (A) with a glass transition temperature (T_g) of at most 80° C. and a melting temperature of at least 150° C., and a heat of fusion of at least 20 J/g, where the glass transition temperature (T_g), the melting temperature (T_m) and the heat of fusion (HF) are determined according to ISO 11357-1/2, under conditions where the differential scanning calorimetry (DSC) is performed with a heating rate of 20 K/min, wherein the copolyamide (A) includes no aromatic dicarboxylic acids.