Transitions Optical, Inc.

Glen Todd Owens

Jerry L Koenig, Ii

Joseph David Turpen

Jerry L Koenig

Cynthia Kutchko

Nancyanne Gruchacz

Vitawat Lahsangah

Jerry L Ii Koenig

A method of preparing a photochromic optical article is provided, which includes: (i) applying a first organic solvent to a surface of an optical substrate, thereby forming an organic solvent wetted surface on the optical substrate; and (ii) applying a curable photochromic coating composition over the organic solvent wetted surface of said optical substrate, thereby forming a curable photochromic coating layer over the surface of the optical substrate. The curable photochromic coating composition includes a second organic solvent, and the first and second organic solvents are miscible with each other. With some embodiments, the first and second organic solvents are the same.

Method of preparing a photochromic optical article using an organic solvent pretreatment and photochromic coating

A photochromic optical article is provided, which includes: an optical substrate; a photochromic layer over a surface of the optical substrate, wherein the photochromic layer includes a photochromic compound; and a protective layer over the photochromic layer, wherein the protective layer includes a matrix that includes residues of an ethylenically unsaturated radically polymerizable material that includes at least one allophanate group. A method of forming the photochromic optical article is also provided.

Photochromic optical article having allophanate protective coating and process for making same

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St. Petersburg, FL, United States of America

Glen Todd Owens