Transitions Optical, Inc.

Ppg Industries Ohio, Inc.

Johnson and Johnson Vision Care, Inc.

Anu Chopra

Wenjing Xiao

Huayun Yu

David B Knowles

Beon-Kyu Kim

Anil Kumar

Barry Van Gemert

Robert W Walters

Jun Deng

Stephen D Straight

Victor A Montes

Frank F Molock, Jr

Kevin J Stewart

Feng Wang

Elizabeth Ann Zezinka

Sujit Mondal

Clara E Nelson

Dennis L Faler

Darrin R Dabideen

Xiao-Man Dai

M Frank Haley

Yunyi Lu

Patrick M Brown

Meng He

Paul H Lamers

James P Colton

Massimiliano Tomasulo

Steven Bowles

Ruisong Xu

Cathy A Taylor

Jason Ryan Lewis

Clara M Nelson

Steven E Bowles

Randy E Daughenbaugh

Forrest R Blackburn

Robin M Peffer

Frank Molock

Charles R Hickenboth

Carol L Knox

Michael S Misura

Michael Frank Haley

Chien-Yang Chiu

Olga G Petrovskaia

Paul J Lynch

Nick J Parise

Emily Amond

Nicholas J Parise

Brian Shaughnessy

An-Hung Yeh

Joseph D Turpen

Kevin E Bancroft

Frank M Haley

Suijit Mondal

Nick Parise

The present invention relates to a photochromic article that includes a substrate and a photochromic layer formed from a curable photochromic composition. The photochromic composition includes a polyol component that includes a polycarbonate diol, an isocyanate component that includes an unblocked polyfunctional isocyanate and/or a blocked polyfunctional isocyanate, and at least one photochromic compound. The equivalents ratio of blocked/unblocked isocyanate equivalents of the isocyanate component to hydroxyl equivalents of the polyol component is at least 5:1. The photochromic article exhibits a T(Fade Half Life) at 23° C. of less than or equal to 70 seconds.

Photochromic article

A photochromic compound including a core skeletal structure represented by the following Formula (I), 

Photochromic indeno-fused naphthopyran compounds with reduced temperature dependence

A method of forming a photochromic segmented multifocal lens is described. The method involves, forming a segmented multifocal lens blank by molding, in which the segmented multifocal lens blank has a front surface and a rear surface. The front surface of the segmented multifocal lens blank includes a segmented optical power addition portion. The method further includes, grinding the rear surface of the segmented multifocal lens blank, thereby forming a segmented multifocal finished lens having a front surface and a rear surface. The front surface of the segmented multifocal finished lens includes the segmented optical power addition portion. The method additionally includes, forming a photochromic coating layer over at least a portion of the rear surface of the segmented multifocal finished lens. The photochromic coating layer includes at least one photochromic compound.

Method of forming a photochromic segmented multifocal lens

The present invention provides ophthalmic devices comprising at least one photochromic material which is an indeno-fused naphthopyran having a pi-conjugation extending group bonded to the 11-position of the indeno-fused naphthopyran, the pi-conjugation extending group having at least one pendent halo-substituted group bonded thereto. The pi-conjugation extending group extends the pi-conjugation system of said indeno-fused naphthopyran. The 13-position of the indeno-fused naphthopyran is substantially free of spiro-substituents. The invention further provides photochromic materials of specified structure, photochromic compositions, photochromic articles and optical elements that include the photochromic materials. Other non-limiting embodiments relate to methods of making the ophthalmic devices comprising photochromic materials.

Photochromic materials having extended pi-conjugated systems and compositions and articles including the same

The present invention relates to a method of making indeno-fused naphthol materials, that involves, with some embodiments, forming an indanone acid intermediate, represented by the following general Formula V, With Formula V, m is from 0 to 4, and Rfor each m, Rand Rcan each be independently selected from, for example, hydrogen and hydrocarbyl.

Method of making indeno-fused naphthol materials

Described herein are compounds generally comprising an indeno[2',3&#x2032;:3,4]naptho[1,2-b]pyran structure. Such compounds may be useful for their photochromic properties, and be used in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles. Also described herein are methods for preparing certain photochromic compounds, compositions, and articles.

Photochromic compounds and compositions

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

Various photochromic materials are provided that are essentially free of polymerizable unsaturated groups, and comprise: Alternative embodiments include various substituents at other positions of the indeno[2',3&#x2032;:3,4]naphtho[1,2-b]pyran.

Photochromic materials demonstrating improved fade rates

Described herein are compounds generally comprising an indeno[2',3&#x2032;:3,4]naptho[1,2-b]pyran structure. Such compounds may be useful for their photochromic properties, and be used in certain photochromic compositions. Such compositions may further comprise other photochromic compositions and/or materials. Additionally, such compounds and/or compositions may be suitable for preparing certain photochromic articles.

The present invention provides a compound represented by the Formula I: wherein substituents Rand Rare each independently selected from an electron withdrawing group have a Hammett &#x3c3;value of from 0.05 to 0.85 and R17 is hydrogen.

Photochromic compounds, compositions and articles

A mechanochromic coating composition is disclosed comprising a polymeric network incorporating a plurality of ring-opening mechanophores each bound at two positions thereof within said polymeric network.

Mechanochromic coating composition

The present invention relates to a method of making indeno-fused naphthol materials, that involves, with some embodiments, forming an indanone acid intermediate, which can be represented by the following general Formula V, With Formula V, m is from 0 to 4, and Rfor each m, Rand Rcan each be independently selected from, for example, hydrogen and hydrocarbyl. The present invention also relates to a method of making an indeno-fused naphthopyran that involves an indanone acid intermediate synthetic route.

Various photochromic materials are provided that are essentially free of polymerizable unsaturated groups, and comprise: Alternative embodiments include various substituents at other positions of the indeno[2',3&#x2032;:3,4]naphtho[1,2-b]pyran. Also provided are photochromic articles including a substrate and one of the above photochromic materials, in contact with at least a portion of the substrate.

Ophthalmic devices comprising photochromic materials having extended pi-conjugated systems

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Pittsburgh, PA, United States of America

Anu Chopra