Suppressing cyclic amide(s) evapn. in polyamide prodn. and processing

A method for the prodn. and processing of polyamides comprising adding zeolites and/or other aluminous substances (I) to the polyamide in amts. sufficient to absorb low-mol. wt. cylic amides (II) and thus render them largely involatile. The addn. of (I) can take place at any time provided that \- on...

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Bibliographic Details
Main Authors OOMS, PIETER. DR., 47800 KREFELD, DE, NIELINGER, WERNER. DR., 47802 KREFELD, DE, IDEL, KARSTEN-JOSEF. DR., 47802 KREFELD, DE, BUYSCH, HANS-JOSEF. DR., 47809 KREFELD, DE, GITTINGER, ANDREAS., 47800 KREFELD, DE
Format Patent
LanguageEnglish
German
Published 03.08.1995
Edition6
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
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:A method for the prodn. and processing of polyamides comprising adding zeolites and/or other aluminous substances (I) to the polyamide in amts. sufficient to absorb low-mol. wt. cylic amides (II) and thus render them largely involatile. The addn. of (I) can take place at any time provided that \- one stage is completed in which a polyamide with the required properties is produced.
Bibliography:Application Number: DE19944402917