Ppg Industries Ohio, Inc.

Transitions Optical, Inc.

Jason Ryan Lewis

Shanti Swarup

Robert W Walters

Hongying Zhou

Anu Chopra

Wenjing Xiao

John W Burgman

Huayun Yu

Matthew S Luchansky

Beon-Kyu Kim

Feng Wang

Justin M Jones

Danielle Kirby

David B Knowles

Barry Van Gemert

Paul H Lamers

Cynthia Kutchko

Susan Fundy Donaldson

Steven Bowles

Massimiliano Tomasulo

Elizabeth Ann Zezinka

Xiao-Man Dai

Stephen D Straight

Victor A Montes

M Frank Haley

Yunyi Lu

David E Sartori

Kevin E Bancroft

Bin Cao

Steven E Bowles

Dave Sartori

Rob Walters

A curable film-forming composition is provided, comprising: (a) a polymeric binder comprising reactive functional groups; (b) a curing agent comprising functional groups that are reactive with the reactive functional groups of (a); and (c) a polysiloxane resin comprising aromatic functional groups and terminal active hydrogen groups. In certain examples of the present invention, the polymeric binder (a) comprises an acrylic polyol prepared from a monomer mixture comprising a hydroxyl functional monomer, and the curable film-forming composition further comprises a rheology modifier comprising: (1) a non-aqueous dispersion of an internally crosslinked organic polymer; (2) a silica dispersion; and/or (3) a reaction product of an amine and an isocyanate. Also provided are coated substrates that include the curable film-forming compositions described above and methods for forming a composite coating on a substrate.

Curable film-forming compositions containing reactive functional polymers and polysiloxane resins, multilayer composite coatings, and methods for their use

A curable film-forming composition is provided, comprising:

Curable film-forming compositions containing hydroxyl functional, branched acrylic polymers and multilayer composite coatings

Curable film-forming compositions containing hydroxyl functional acrylic polymers and bisurea compounds and multilayer composite coatings

The present invention relates to photochromic materials that include one or more indeno-fused naphthopyrans that have particular groups at the 7, 11, and 13 positions thereof, and at the position alpha to the oxygen of the pyran ring thereof. With some embodiments, hydrogen or an alkoxy group is bonded to the 7 position, an optionally substituted phenyl is bonded to the 11 position, two alkyl groups are bonded to the 13 position, and two optionally substituted phenyl groups are bonded to the position alpha to the oxygen of the pyran ring of the indeno-fused naphthopyran compound. The 13 position of the indeno-fused naphthopyrans is free of ether groups in which an ether oxygen is bonded to the 13 position, and hydroxyl. The present invention also relates to photochromic articles and compositions that include such indeno-fused naphthopyrans.

Photochromic materials that include indeno-fused naphthopyrans

The present invention relates to photochromic compounds that include at least two photochromic moieties that are linked together by a multivalent linking group. The multivalent linking group can be selected so as to be flexible and/or substantially prevent electronic interaction between any two photochromic moieties through the multivalent linking group. The present invention also relates to photochromic compositions and articles that include at least a photochromic amount of one or more photochromic compounds of the present invention.

Photochromic compounds having at least two photochromic moieties

The present invention provides a curable, organic polymeric photochromic composition comprising: a photochromic amount of at least one photochromic material; a polymeric polyol having carbonate groups along its backbone and having a number average molecular weight greater than 5000 g/mole; and a curing agent having reactive functional groups capable of reacting with hydroxyl groups on the polymeric polyol. After curing and after the Photochromic Performance Test the composition demonstrates a Tfade rate of less than 200 seconds. Also provided is a photochromic article comprising a rigid substrate and a photochromic organic polymeric coating applied to a surface of the substrate. The photochromic organic polymeric coating comprises the composition described above.

Curable photochromic compositions and optical articles prepared therefrom

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Monaca, PA, United States of America

Jason Ryan Lewis