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

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...

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Bibliographic Details
Main Authors DEININGER, JUERGEN, GRUETZNER, ROLF-EGBERT, LIESE-SAUER, THOMAS, ROSENAU, BERNHARD, STRAUCH, JOACHIM
Format Patent
LanguageEnglish
French
German
Published 16.07.2008
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary: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.
Bibliography:Application Number: EP20060807324