Patent ID: 7151127

Claim:
A thermoplastic polyamide moulding composition with reduced or strongly reduced formation of solid deposits during a thermoplastic conversion into commodity goods in discontinuous processes and continuous processes, the compositions comprising: (A) at least 20% by weight polyamide and/or at least one copolymer containing at least 20% by weight polyamide structural units; (B) 0.05% by weight related to the polyamide portion up to maximum 3.0% by weight related to the polyamide portion of at least one compound, each related to the polyamide portion of the moulding composition, the at least one compound selected from the group consisting of benzene sulfonic acid alkylamides, o-, p-toluene sulfonic acid alkylamides, alkylhydroxy benzoates, benzene carboxylic acid esters, phthalic acid esters, fatty acid esters, esters of polyhydric alcohols, dicarboxylic acid diesters with a C-number from 4 to 44 atoms, trialkylmellitic acid esters, phosphoric acid esters, citric acid esters, tetra (2-hydroxyalkyl) alkylene diamines, and trialkylamines, and/or (C) 0.05% by weight up to maximum 3.0% by weight of at least one aprotic compound, each related to the polyamide portion of the moulding composition, the at least one aprotic compound selected from the group consisting of N-alkylated, cyclic carboxylic acid amides with 5 to 7 ring elements where the carboxylic acid amides correspond to formula I, where x is 1 to 3 and R1 an octyl residue, wherein the octyl residue is linear or branched at the nitrogen and may contain heteroatoms and heterogroups.