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公开(公告)号：US11420426B2
公开(公告)日：2022-08-23
申请号：US15256351
申请日：2016-09-02
发明人： Xuzhi Qin , Hideyo Sugimura , Michael Boulineau
IPC分类号： B32B27/08 , B32B23/00 , B32B27/36 , B32B27/30 , B32B27/20 , B32B27/32 , B32B27/18 , C08G18/10 , C08G18/42 , C08G18/75 , C08K5/00 , C08L75/04 , G02B1/04 , B32B27/40 , B29D11/00 , B32B37/00 , B32B37/24 , B32B38/00 , G02B5/23 , G02C7/06 , G02C7/10 , G02B5/22 , C08J5/18 , C08L75/06 , C08L75/12 , B29K75/00 , B29K101/00 , B29K105/00 , B32B38/16 , B29K69/00 , B29K675/00
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.
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公开(公告)号：US20230375751A1
公开(公告)日：2023-11-23
申请号：US18364412
申请日：2023-08-02
发明人： Hannah Vu , Hideyo Sugimura , Ping Fan , Hao Vu
IPC分类号： G02B1/04 , C08G18/75 , C08G18/42 , B32B27/40 , C08G2/10 , C08G18/32 , C08G18/10 , G02B5/23 , G02C7/10
CPC分类号： G02B1/041 , C08G18/758 , C08G18/4277 , B32B27/40 , C08G2/10 , C08G18/3206 , C08G18/10 , G02B5/23 , G02C7/102 , Y10T428/31551
摘要： A photochromic polyurethane laminate wherein the photochromic polyurethane layer of the laminate has been crosslinked with an isocyanate-active prepolymer using a crosslinking agent. The crosslinking agent is formulated to have at least three functional groups that are reactive with functional groups of the polyurethane or of the isocyanate-active prepolymer. A method of making the photochromic polyurethane laminate includes steps of causing the crosslinking.
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公开(公告)号：US11754752B2
公开(公告)日：2023-09-12
申请号：US17516619
申请日：2021-11-01
发明人： Hannah Vu , Hideyo Sugimura , Ping Fan , Hao Vu
IPC分类号： G02B1/04 , C08G18/75 , C08G18/42 , B32B27/40 , C08G2/10 , C08G18/32 , C08G18/10 , G02B5/23 , G02C7/10
CPC分类号： G02B1/041 , B32B27/40 , C08G2/10 , C08G18/10 , C08G18/3206 , C08G18/4277 , C08G18/758 , G02B5/23 , G02C7/102 , Y10T428/31551 , C08G18/10 , C08G18/3206 , C08G2/10 , C08G18/3206
摘要： A photochromic polyurethane laminate wherein the photochromic polyurethane layer of the laminate has been crosslinked with an isocyanate-active prepolymer using a crosslinking agent. The crosslinking agent is formulated to have at least three functional groups that are reactive with functional groups of the polyurethane or of the isocyanate-active prepolymer. A method of making the photochromic polyurethane laminate includes steps of causing the crosslinking.
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