CORE-SHELL POLYAMIDE POWDER

Seeded particle of polyamide (PA) powder comprises shell and core polyamide, where the polyamide core and shell is identical natural polyamide but molecular weight of natural polyamide is different. Independent claims are included for: (1) a preparation of the powder comprising anionic polymerizatio...

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Bibliographische Detailangaben
1. Verfasser:	SENFF, Holger
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Seeded particle of polyamide (PA) powder comprises shell and core polyamide, where the polyamide core and shell is identical natural polyamide but molecular weight of natural polyamide is different. Independent claims are included for: (1) a preparation of the powder comprising anionic polymerization in a dissolved solvent, where the polymerization of lactam 6, lactam 12 or their mixture is performed in the presence of a catalyst, an activator of at least a amide containing N, N'-alkylene bis amide and an organic filler; and (2) a use of the powder for manufacturing objects by agglomeration of the powder by melting caused by radiation of laser, IR or UV radiation.