Polyaryletherketone copolymer material, manufacture and use thereof

A polyaryletherketone, PAEK, in the form of particles is a copolymer with at least 95 mole % repeat units of formula I, and repeat units of formula II, and a molar ratio I:II from 55:45 to 80:20. The PAEK has a melt viscosity, MV, from 0.35 to 0.55 kNsm−2 at 1000 s−1. The PAEK is of use in formation...

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Bibliographische Detailangaben
Hauptverfasser:	Martin Riley, Ulutan Tahsin, Adam Chaplin
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	A polyaryletherketone, PAEK, in the form of particles is a copolymer with at least 95 mole % repeat units of formula I, and repeat units of formula II, and a molar ratio I:II from 55:45 to 80:20. The PAEK has a melt viscosity, MV, from 0.35 to 0.55 kNsm−2 at 1000 s−1. The PAEK is of use in formation of components having high elongation at break when formed by selective sintering and melt-bonding of sequentially deposited layers of powder comprising the PAEK particles. Also provided are processes for making the PAEK particles, powders including them and their use and methods of their use in component formation.