High-durability photocatalyst film and structure having photocatalytic functions on surface
US7488524B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Jul 30, 2003 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Jul 30, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/266
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A high-durability photocatalyst film that is a laminated film comprising a substrate film and a photocatalytically active material layer formed thereon via a protective layer, wherein the substrate film is a film having specific performances in a weather resistance test with a sunshine weatherometer, the protective layer is an organic-inorganic composite graded film and the above laminated film exhibits specific performances in an accelerated weather resistance test with a sunshine weatherometer, and a structure having photocatalytic functions on a surface formed of the above photocatalyst film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.