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

Claim 9:
10. 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 (Mn) of less than 2000 selected from glycerol, trimethylolpropane, 2,3-di-(2′-hydroxyethyl)cyclohexan-1-ol, hexane-1,2,6-triol, 1,1,1-tris(hydroxymethyl)ethane, 3-(2′-hydroxyethoxy)propane-1,2-diol, 3-(2′ hydroxypropoxy)propane-1,2-diol, 2-(2′-hydroxyethoxy)hexane-1,2-diol, 6-(2′-hydroxypropoxy)hexane-1,2-diol, 1,1,1-tris-[(2′-hydroxyethoxy)methyl]ethane, 1,1,1-tris-[(2′-hydroxypropoxy)methyl]propane, 1,1,1-tris-(4′-hydroxyphenyl)ethane, 1,1,1-tris (hydroxyphenyl)propane, 1,1,3-tris-(dihydroxy-3-methylphenyl)propane, 1,1,4-tris(dihydroxyphenyl)butane, 1,1,5-tris(hydroxyphenyl)-3-methylpentane, ditrimethylopropane, trimethylolpropane ethoxylates, trimethylolpropane propoxylates, pentaerythritol, dipentaerythritol, tripentaerythritol, cyclodextrin, D-mannose, glucose, galactose, sucrose, fructose, xylose, arabinose, D-mannitol, D-sorbitol, D- or L-arabitol, xylitol, iditol, talitol, allitol, altritol, guilitol, erythritol, threitol and D-gulono-y-lactone as component D); and
(e) 0% to 20% by weight of further additives as component E), 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 PA 4, PA 5, PA 6, PA 7, PA 8, PA 9, PA 10, PA 11, PA 12, PA 46, PA 66, PA 69, PA 610, PA 612, PA 96, PA 99, PA 910, PA 912, PA 1212 and the aliphatic copolyamide A2) is constructed from monomers of two or three polyamides selected from PA 4, PA 5, PA 6, PA 7, PA 8, PA 9, PA 10, PA 11, PA 12, PA 46, PA 66, PA 69, PA 610, PA 612, PA 96, PA 99, PA 910, PA 912, PA 1212;
wherein the composition does not comprise a flame retardant.