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POLYAMIDES FORMED FROM META-XYLYLENEDIAMINE AND ADIPIC ACID AND HAVING AN AMINO END GROUP CONTENT OF LESS THAN 15 MMOL/KG
POLYAMIDES FORMED FROM META-XYLYLENEDIAMINE AND ADIPIC ACID AND HAVING AN AMINO END GROUP CONTENT OF LESS THAN 15 MMOL/KG
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机译:由间二甲苯二胺和乙酸组成的聚酰胺,氨基末端基团含量低于15 MMOL / KG
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摘要
The present invention relates to novel and improved polyamides composed of meta-xylylenediamine and having an amino end group content of less than 15 mmol/kg. Also found have been processes for preparing these polyamides composed of meta-xylylenediamine and adipic acid and having an amino end group content of less than 15 mmol/kg, which comprises reacting salt solutions of adipic acid and m-xylylenediamine at temperatures of from 80 to 300° C. and a pressure of from 1 to 20 bar with removal of water.
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