Pilkington Visioncare Holdings, Inc.

Sola International, Inc.

Hector Belmares

Sundar Ram

Lani Sherwood

Peter W Coldrey

Polymeric coatings containing both UV absorbers and dyes are employed to produce transparent, durable film coatings that can significantly increase the level of UV radiation blockage when coated onto substrates including ophthalmic lenses. The dye comprises 1-�(4-methylphenyl)amino!-4-hydroxy-9, 10-anthracenedione. The color-neutral film coatings are resistant to weather and UV degradation.

Color-neutral UV blocking coating for plastic lens

A three-layer antireflective coating composition for a CR-39 or glass substrate comprising a middle layer containing titanium compounds sandwiched between top and bottom layers containing polysiloxane, wherein the top and bottom layers are titanium-free; and a process for preparing said antireflective coating with improved adhesion on a CR-39 or glass substrate. The thicknesses of each of said coating layers is in accordance with preselected equations, and the refractive indices of said coating layers satisfy the following requirements:

Solution-applied antireflective coatings

A two-layer antireflective coating composition stacked on a substrate consisting of allyl diglycol carbonate polymer (CR-39) or glass and comprising a bottom layer containing less than 10% by weight of titanium dioxide equivalent weight and a titanium-free top layer containing polysiloxane resin; and a process for preparing said antireflective coating with improved adhesion on a substrate consisting of allyl diglycol carbonate polymer (CR-39) or glass. The thicknesses of each of said coating layers is in accordance with preselected equations, and the refractive indices of a said coating layers satisfy the following requirements:

Two-layer antireflective coating applied in solution

Polymerizable and cross-linkable, radiation curable coating compositions particularly designed for deposition as an abrasion resistant, tintable coating poly (bis phenyl A) carbonates. The formulation is a mixture including:

Growing community of inventors

Santa Rosa, CA, United States of America

Hector Belmares