Invention Grant
US08576471B2 Liquid casting compositions, production processes and photochromic optical elements
有权
液体铸造组合物，生产工艺和光致变色光学元件
- Patent Title: Liquid casting compositions, production processes and photochromic optical elements
- Patent Title (中): 液体铸造组合物，生产工艺和光致变色光学元件
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Application No.: US13257014Application Date: 2010-03-16
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Publication No.: US08576471B2Publication Date: 2013-11-05
- Inventor: Fang Chen
- Applicant: Fang Chen
- Applicant Address: AU Lonsdale, South Australia
- Assignee: Carl Zeiss Vision Australia Holdings Limited
- Current Assignee: Carl Zeiss Vision Australia Holdings Limited
- Current Assignee Address: AU Lonsdale, South Australia
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: AU2009901119 20090316
- International Application: PCT/AU2010/000297 WO 20100316
- International Announcement: WO2010/105289 WO 20100923
- Main IPC: G02F1/07
- IPC: G02F1/07 ; G02B5/23
Abstract:
The present invention provides a liquid casting composition for producing photochromic optical elements, the composition including: (i) an acrylate or methacrylate monomer; (ii) a photochromic compound; (iii) a terpinolene-based radical chain transfer agent; and (iv) a thermal free radical initiator. Also provided are methods for producing photochromic optical elements using the liquid casting composition and photochromic optical elements produced thereby. The photochromic optical elements include, for example, ophthalmic lenses.
Public/Granted literature
- US20120268828A1 Liquid Casting Compositions, Production Processes and Photochromic Optical Elements Public/Granted day:2012-10-25
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