PHOTOCHROMIC ARTICLE AND METHOD OF PREPARATION

A process for manufacture of a photochromic polymeric article comprising: providing a fluid polymerisable com-position; subjecting the fluid polymerisable composition to a first curing step to provide a solid article of intermediate hardness; contacting the solid article of intermediate hardness wit...

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Bibliographische Detailangaben
Hauptverfasser:	CIESLINSKI, BOHDAN GRZEGORZ, BUBNER, RAYMOND K, LEWIS, DAVID ANDREW, CHEN, FANG, TOH, HUAN KIAK
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	A process for manufacture of a photochromic polymeric article comprising: providing a fluid polymerisable com-position; subjecting the fluid polymerisable composition to a first curing step to provide a solid article of intermediate hardness; contacting the solid article of intermediate hardness with a photochromic substance; and subjecting the solid article of intermediate hardness to a further curing step to increase the hardness and provide a polymeric article imbibed with the photochromic substance.