Patent ID: 8975325
Filing Date: 2015-03-10
Classification: B29C,C08K,C08L

Abstract:
1. A non-fibrous-reinforced thermoplastic moulding composition consisting of: a) a polymer composition comprising at least one thermoplastic polyamide having a weight average molecular mass Mw of at most 50,000 g/mol, and b) 0.05 to 5 parts by weight (pbw) relative to 100 pbw of the polymer composition in the moulding composition of finely dispersed elementary iron powder as a thermo-stabilizing system having a weight average particle size (dm) of at most 100 μm, c) a pigment; d) one or more substances selected from inorganic salts, acidifying components and mixtures thereof, and, optionally, e) at least 10 mass %, relative to the total mass of the composition, of non-fibrous inorganic fillers and/or f) other auxiliary additives, not comprising fibrous reinforcing agents, wherein the moulding composition exhibits reduced deterioration when exposed to an elevated temperature of 215° C. for a prolonged time period of 500 hours as compared to an identical moulding composition including a CuI/KI stabilization system but not including the elementary iron powder.