Reversible derivatization of poly (aryl ether ketones)

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United States of America Patent

PATENT NO 9963563
SERIAL NO

15724028

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Abstract

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The embodiments of the present disclosure present systems and methods for the reversible solubilization of (aryl ether ketones) (PAEKs). A thioacetalization process is employed to modify the PAEKs into poly (aryl ether thioacetals) which, unlike PAEKs, are substantially soluble in common solvents. This modification allowing selected analysis techniques to be more easily performed on PAEKs, such as gel permeation chromatography. The thioacetalization may be reversed through a deprotection reaction to recover the original PAEK without substantial degradation, allowing for non-destructive characterization of the PAEK. Advantageously, the thioacetalization process is generally applicable to a broad range of PAEKs, unlike presently known methods of solubilizing PAEKs. Solubilization of PAEKs further expands the utility of the PAEKs, opening up additional routes to chemical modification of PAEKs, as well as allowing for the possibility of processing PAEKs from solution.

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Patent Owner(s)

Patent OwnerAddress
CYTEC TECHNOLOGY CORPWILMINGTON DE 19801

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Colquhoun, Howard Matthew Kuntsford, GB 9 38
Cross, Paul Mark York, GB 13 29
Hodge, Philip Nr Lancaster, GB 4 45
Manolakis, Ioannis Berkshire, GB 3 0
McGrail, Patrick Terence North Yorkshire, GB 21 193
Paoloni, Francois Pierre Vincent Cambridge, GB 3 12

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