High impact polyamides

Claim 2

A thermoplastic polyamide molding composition produced from a mixture consisting essentially of: (a) 70 to 98.95%, by weight, of a thermoplastic polyamide; (b) 1 to 30%, by weight, of a long-chain polyester-, polyether-or hydrocarbon-polyol having a number average molecular weight of from 500 to 2,500, a softening point of 100° C. or less and a functionality of 4 or less; and (c) 0.5 to 5%, by weight, of at least one polyanydride selected from an adduct of maleic acid anydride with a polybutadiene oil; or a compolymer of maleic acid anhydride with styrene, ethylene, (meth)acrylic ester or acrylonitrile, having a functionality of at least five, a polyepoxide or mixtures thereof; the sum total of components a) to c) being 100%, by weight.

Claim 3

A polyamide molding composition as claimed in claim 1, produced from 85 to 97.9%, by weight, of component (a); 2 to 15%, by weight, of component (b);and 0.1 to 3%, by weight, of component (c).

Claim 4

A polyamide molding composition as claimed in claim 2, produced from 92 to 96%, by weight, of component (a).

Claim 5

A polyamide molding composition as claimed in claim 2 or 3, produced from 3 to 8%, by weight, of component (b).

Claim 6

A polyamide molding composition as claimed in claim 1, wherein component (b) is a telechelic, hydrogenated polybutadiene or polyisoprene polyol; a polyether polyol derived from an alkoxylation product of water, ammonia, amine and a mono to tetrahydric alcohol, cyclic ethers or phenol with a 1,2-alkylene oxide or mixtures thereof, or a polyester polyol produced from a polyol and a dicarboxylic acid.

Claim 7

A polyamide molding composition as claimed in claim 1, wherein component (b) has a number average molecular weight of from 1,500 to 2,500 and a functionality of two.

Claim 8

A thermoplastic polyamide molding composition produced from a mixture consisting essentially of: (a) 70 to 98.95%, by weight, of a thermoplastic polyamide; (b) 1 to 30%, by weight, of a long-chain polyester-, polyether-or hydrocarbon-polyol having a number average molecular weight of from 500 to 2,500, a softening point of 100° C. or less and a functionality of 4 or less; and (c) 0.5 to 5%, by weight, of a polyglycidyl ether of a polyhydric phenol, or a polyhydric alcohol; a polyglycidyl ester of a polybasic aromatic, aliphatic or cycloaliphatic polycarboxylic acid; or a polymer of glycidyl acrylate or glycidyl methacrylate or a copolymer of glycidyl acrylate or glycidyl methacrylate with an unsaturated monomer; the sum total of components (a) to (c) being 100%, by weight.

Claim 9

A thermoplastic polyamide molding composition produced from a mixture consisting essentially of: (a) 70 to 98.95%, by weight, of a thermoplastic polyamide; (b) 1 to 30%, by weight, of a long-chain polyester-, polyether-or hydrocarbon-polyol having a number average molecular weight of from 500 to 2,500, a softening point of 100° C. or less and a functionality of 4 or less; and (c) 0.5 to 5%, by weight, of a polyglycidyl ether of a polyhydric phenol, or a polyhydric alcohol; a polyglycidyl ester of a polybasic aromatic, aliphatic or cycloaliphatic polycarboxylic acid; or a polymer of glycidyl acrylate or glycidyl methacrylate or a copolymer of glycidyl acrylate or glycidyl methacrylate with an unsaturated monomer; the sum total of components (a) to (c) being 100%, by weight.

Claim 10

A polyamide molding composition as claimed in claim 7, wherein component (c) is a polyepoxide selected from a polyglycidyl ether of 1,4-butane diol, a polyglycidyl ester of phthalic acid, hexahydrophthalic acid or adipic acid; a copolymerizate of glycidyl (meth)acrylate with styrene, acrylonitrile, methyl-methacrylate or methyl-acrylate.