Powdered mixture of polyamides for heat sealing by the powder point process

摘要

Powdered polyamide mixtures for use in the heat sealing of textiles by the powder point process. The polyamide homogeneous mixtures contain: (a) about 95 to 40% by weight of at least one copolyamide with a melting point of at least about 110 DEG to 140 DEG C. and having a proportion of a basic lauryllactam monomer component of at least 20% and at most 70% by weight; and (b) about 5 to 60% by weight of at least one copolyamide with a melting point between about 80 DEG to 110 DEG C. and having a proportion of a basic lauryllactam monomer component or lauryllactam and 11-aminoundecanoic acid copolymer of at least 25% and at most 70% by weight, where the percentages are based on the total weight of the copolyamide mixtures.