Patent ID: 11945949
Assignee: BASF SE
Field: Other special machines (Mechanical engineering)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A polyamide composition comprising:
(a) 30% to 99.9% by weight of a polyamide mixture as component A) composed of aliphatic polyamide A1) and aliphatic copolyamide A2), wherein the weight ratio of A1) to A2) is 55:45 to 95:5;
(b) 0% to 60% by weight of glass fibers as component B);
(c) 0% to 2% by weight of nigrosin as component C);
(d) 0.1% to 10% by weight of at least one polyhydric alcohol comprising more than two hydroxyl groups and a number-average molecular weight (Me) of less than 2000 selected from the group consisting of pentaerythritol, dipentaerythritol, tripentaerythritol, di-trimethylolpropane, D-mannitol, D-sorbitol, and xylitol as component D); and
(e) 0% to 20% by weight of further additives as component E), wherein component E) is selected from the group consisting of fillers and reinforcing materials different from glass fibers, thermoplastic polymers different from component A), non-nucleated colorants different from C), carbon black, lubricants, heat stabilizers, light stabilizers, dyes, nucleating agents, metallic pigments, metal flakes, metal-coated particles, antistatic agents, conductivity additives, mold-release agents, optical brighteners and antifoams;
wherein the reported amounts summing to 100% by weight are based on the total composition, the aliphatic polyamide A1) is selected from the group consisting of PA 6, PA 66 and mixtures thereof and the aliphatic copolyamide A2) is a PA 6/PA 66 copolymer;
wherein the polyamide composition comprises 0 to 15% by weight, based on the total weight of the composition, of at least one flame retardant selected from the group consisting of red phosphorus, nitrogen-containing flame retardants, oligomeric brominated polycarbonates, polypentabromobenzyl acrylates with a degree of polymerization greater than 4, reaction products of tetrabromobisphenol A with epoxides, brominated oligomeric or polymeric styrenes, and Dechlorane.