发明授权
US08608988B2 Curable photochromic compositions and optical articles prepared therefrom
有权
可固化的光致变色组合物和由其制备的光学制品
- 专利标题: Curable photochromic compositions and optical articles prepared therefrom
- 专利标题(中): 可固化的光致变色组合物和由其制备的光学制品
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申请号: US13293255申请日: 2011-11-10
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公开(公告)号: US08608988B2公开(公告)日: 2013-12-17
- 发明人: Steven E. Bowles , Cynthia Kutchko , Paul H. Lamers , Jason R. Lewis , David E. Sartori , Robert W. Walters , Feng Wang
- 申请人: Steven E. Bowles , Cynthia Kutchko , Paul H. Lamers , Jason R. Lewis , David E. Sartori , Robert W. Walters , Feng Wang
- 申请人地址: US FL Pinellas Park
- 专利权人: Transitions Optical, Inc.
- 当前专利权人: Transitions Optical, Inc.
- 当前专利权人地址: US FL Pinellas Park
- 代理商 Deborah M. Altman
- 主分类号: G02B5/23
- IPC分类号: G02B5/23 ; G02B13/00 ; G02B3/00
摘要:
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 T1/2 fade 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.
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