Optical article comprising a precursor coating for an antifogging coating and a temporary layer rendering same suitable for edging

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United States of America Patent

PATENT NO 9435914
SERIAL NO

14117251

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Importance

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Abstract

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The present invention concerns an optical article comprising a substrate, at least one of the main surfaces of which is coated with a first coating comprising, at its surface, silanol groups and, in direct contact with this coating, a second coating which is a precursor for an antifog coating, the second coating being formed by deposition, on the first coating, of at least one compound A having a polyoxyalkylene group, and at least one group capable of establishing a covalent bond with a silanol group, wherein the second coating comprises an internal part, in which compound A is grafted to the first coating, and an external part, which can be removed by washing and/or wiping, resulting from the deposition of the compound A, and wherein the second coating is coated with at least one temporary layer comprising at least 50% by weight of silica.

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Patent Owner(s)

  • ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE);ESSILOR INTERNATIONAL COMPAGNIE GENERALE D'OPTIQUE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Henky, Francis Charenton le Pont, FR 6 45
Theoden, Alexis Charenton le Pont, FR 7 21

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