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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| creator | CIESLINSKI, BOHDAN GRZEGORZ BUBNER, RAYMOND K LEWIS, DAVID ANDREW CHEN, FANG TOH, HUAN KIAK |
| description | 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. |
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| subjects | 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 |
| title | PHOTOCHROMIC ARTICLE AND METHOD OF PREPARATION |
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