- 专利标题: Photochromic Polyurethane Laminate
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申请号: US15256202申请日: 2016-09-02
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公开(公告)号: US20160370517A1公开(公告)日: 2016-12-22
- 发明人: Xuzhi Qin , Hideyo Sugimura , Michael Boulineau
- 申请人: VISION EASE, LP
- 申请人地址: US MN Ramsey
- 专利权人: VISION EASE, LP
- 当前专利权人: VISION EASE, LP
- 当前专利权人地址: US MN Ramsey
- 主分类号: G02B5/23
- IPC分类号: G02B5/23 ; G02C7/10 ; G02B1/04 ; B29D11/00 ; C08G18/42 ; B32B27/40 ; B32B37/00 ; B32B38/00 ; C08G18/10 ; C08G18/75 ; G02B5/22 ; B32B27/18
摘要:
A photochromic polyurethane laminate that is constructed to solve certain manufacturing difficulties involved in the production of plastic photochromic lenses is disclosed. The photochromic laminate includes at least two layers of a resinous material and a photochromic polyurethane layer that is interspersed between the two resinous layers and which contains photochromic compounds. The polyurethane layer is formed by curing a mixture of a solid thermoplastic polyurethane, at least one isocyanate prepolymer, at least one photochromic compound, and a stabilizing system.
公开/授权文献
- US09981453B2 Photochromic polyurethane laminate 公开/授权日:2018-05-29
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