SELF-HEALING TRANSPARENT COATINGS CONTAINING MINERAL CONDUCTIVE COLLOIDS
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United States of America Patent
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app pub date -
Jul 30, 2013
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Feb 3, 2011
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Abstract
The present invention is drawn to an optical article comprising
- (a) a transparent optical substrate and(b) a transparent coating, said transparent coating being the outermost coating of the optical article and consisting essentially ofa polythiol-ene matrix obtained by curing a liquid monomer mixture comprising at least one polyfunctional thiol and at least one polyfunctional allyl monomer, said cured polythiol-ene matrix having a glass transition temperature comprised in the range of from 40° C. to 70° C., andfrom 0.5 to 7% by weight of conductive mineral colloids homogeneously dispersed therein.
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