Invention Grant
- Patent Title: Self-cleaning film system and method of forming same
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Application No.: US15598829Application Date: 2017-05-18
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Publication No.: US10583428B2Publication Date: 2020-03-10
- Inventor: Thomas A. Seder , James A. Carpenter , Gayatri V. Dadheech
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Harness, Dickey & Pierce, P.L.C.
- Main IPC: B01J35/00
- IPC: B01J35/00 ; B01J21/06 ; B08B17/02 ; G02B27/00 ; B08B17/06 ; B82Y30/00

Abstract:
A self-cleaning film system configured for reducing a visibility of a contaminant includes a substrate and a film. The film includes a monolayer defining a plurality of cavities and formed from a first material having a first surface energy, and a plurality of patches disposed within the plurality of cavities. Each of the patches is formed from a photocatalytic material having a second surface energy that is higher than the first. The film has a touchpoint area having a first use frequency, and a second area having a second use frequency that is less than the first. The patches are present in the touchpoint area in a first concentration and are configured to direct the contaminant towards the second area. The patches are present in the second area in a second concentration that is higher than the first and are configured to reduce the visibility of the contaminant.
Public/Granted literature
- US20180333709A1 SELF-CLEANING FILM SYSTEM AND METHOD OF FORMING SAME Public/Granted day:2018-11-22
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