POLYAMIDE RESIN COMPOSITION AND ITS PRODUCTION METHOD

PROBLEM TO BE SOLVED: To provide a method for giving oxidation stability at a high temperature in the presence of oxygen, for example, to a dimeric-acid modified polyamide resin, using a less inexpensive and easier means greatly as compared with the method of hydrogenation. SOLUTION: The polyamide r...

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1. Verfasser:	HATA NORIAKI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 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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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for giving oxidation stability at a high temperature in the presence of oxygen, for example, to a dimeric-acid modified polyamide resin, using a less inexpensive and easier means greatly as compared with the method of hydrogenation. SOLUTION: The polyamide resin composition contains a polyamide resin wherein a polybasic carboxylic acid containing an unsaturated carbon-carbon bond, and a polyamine are constituent units. A few amount of an organic phosphorus compound is added to a usage of the polybasic carboxylic acid containing the unsaturated carbon-carbon bond of a raw material, and in the presence of a few amount of this organic phosphorus, the polyamide resin is formed by dehydrocondensing under heating. The polyamide resin composition contains a few amount of the organic phosphorus compound to be coexisted, as an accompanying component.