Invention Grant
- Patent Title: Photochromic articles containing a porous material with a photochromic dye and fluid, methods of making and using
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Application No.: US16342239Application Date: 2017-11-28
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Publication No.: US11054558B2Publication Date: 2021-07-06
- Inventor: Adam D. Miller , Donovan G. Weiblen, III , William Blake Kolb , Thomas P. Klun , Richard J. Pokorny
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN St. Paul
- Agent Vincent Pham
- International Application: PCT/US2017/063344 WO 20171128
- International Announcement: WO2018/102266 WO 20180607
- Main IPC: G02B5/23
- IPC: G02B5/23 ; G02B5/22
Abstract:
A photochromic article is provided, containing a structural component, a fluid in contact with the structural component, and a photochromic organic dye in contact with the fluid; and a barrier layer disposed on the structural component to provide a barrier for the fluid and photochromic organic dye. The structural component includes a polymeric material that is porous, includes a plurality of cavities, or a combination thereof. A method of changing a light transmission of a photochromic article is provided. A method of forming a photochromic article is also provided.
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