Copolyamides from lactam and diamine salts of two different dicarboxylic acids

摘要

Copolyamides which are manufactured using (A) from 1 to 60 parts by weight of a cyclic lactam of 6 to 12 carbon atoms and/or an omega -aminocarboxylic acid of 6 to 20 carbon atoms and (B) from 40 to 99 parts by weight of the salt of at least two different dicarboxylic acids of the general formula HOOC-R-COOH where R is an aliphatic or cycloaliphatic radical of 4 to 46 carbon atoms with (a) cycloaliphatic and/or aliphatic diamines of 4 to 20 carbon atoms, which possess at least one secondary amino group and (b) optionally, up to 0.3 equivalent of primary alpha , omega -diamines of 2 to 20 carbon atoms, are excellent hot-melt adhesives.