POLYAMIDES FORMED FROM META-XYLYLENEDIAMINE AND ADIPIC ACID AND HAVING AN AMINO END GROUP CONTENT OF LESS THAN 15 MMOL/KG

摘要

The present invention relates to novel and improved polyamides formed from meta-xylylenediamine and adipic acid with an amino end group content of less than 15 mmol/kg. Also found have been processes for preparing these polyamides from meta-xylylenediamine and adipic acid with an amino end group content of less than 15 mmol/kg, which is characterized in that salt solutions of adipic acid and m-xylylenediamine are reacted at temperatures of 80 to 300°C and a pressure of 1 to 20 bar with removal of water.