发明授权
- 专利标题： Composition comprising photochromic dyes in an ionic solvent
- 专利标题（中）： 在离子溶剂中包含光致变色染料的组合物
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申请号： US12920883申请日： 2009-03-02
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公开(公告)号： US08411347B2公开(公告)日： 2013-04-02
- 发明人: Samuel Archambeau , Jean-Paul Cano , Corinne Galley , Francois Malbosc
- 申请人： Samuel Archambeau , Jean-Paul Cano , Corinne Galley , Francois Malbosc
- 申请人地址： FR Charenton le Pont
- 专利权人： Essilor International (compagnie Generale D'optique)
- 当前专利权人： Essilor International (compagnie Generale D'optique)
- 当前专利权人地址： FR Charenton le Pont
- 代理机构： Occhiuti Rohlicek & Tsao LLP
- 优先权： FR0851442 20080305
- 国际申请： PCT/FR2009/050339 WO 20090302
- 国际公布： WO2009/115721 WO 20090924
- 主分类号： G02F1/03
- IPC分类号： G02F1/03
摘要：
A photochromic composition that is liquid at 20° C. and includes (a) at least one photochromic dye and (b) an ionic solvent selected from (b)(i) room-temperature ionic liquids (RTIL), (b)(ii) ionic liquid mixtures that are liquid at room temperature, and (b)(iii) room-temperature liquid mixtures of at least one ionic liquid and at least one organic solvent that is miscible therewith. The use of said photochromic composition in optical devices such as ophthalmic lenses is also described.
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