Polyamide-containing monomeric units of 1,4-butylene diamine

摘要

A method for producing a polyamide containing a monomer unit of diamines derived therefrom and / or dicarboxylic acids of the fatty acid-based as well as aliphatic dicarboxylic acids having carbon atoms to 12 or 1,4-butylene diamine, 6, a 50% by weight an aqueous salt mixture containing a diamine derived therefrom and / or dicarboxylic acids of the fatty acid-based as well as aliphatic dicarboxylic acids having carbon atoms to 12 atoms) 1,4-butylene diamine, 6 step of distilling the mixture until the water less than 15% by weight at a pressure of 16barg below while maintained at a temperature high enough to produce a mixture containing water, to be left in the liquid that the mixture and a step of starting by increasing to up to 180 ℃ at least the temperature, the polymerization of the mixture obtained in step a) b) the reactive group of 80% before it is converted at least in c) required The method includes the step of supplying the reaction mixture diamine derived therefrom and / or dicarboxylic acids of the fatty acid-based as well as aliphatic dicarboxylic acids, depending, carbon atoms to 12 or more 1,4-butylene diamine, 6 . The present invention also relates to the shaped articles obtained polyamide compositions comprising a polyamide and its made from the composition.