发明授权
- 专利标题: Photocatalytic coating film and method for producing same
- 专利标题(中): 光催化涂膜及其制备方法
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申请号: US14124292申请日: 2012-06-06
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公开(公告)号: US09517459B2公开(公告)日: 2016-12-13
- 发明人: Toru Nakai , Yoshinori Funaki , Toshikazu Nakamura
- 申请人: Toru Nakai , Yoshinori Funaki , Toshikazu Nakamura
- 申请人地址: JP Osaka-Shi
- 专利权人: DAICEL CORPORATION
- 当前专利权人: DAICEL CORPORATION
- 当前专利权人地址: JP Osaka-Shi
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2011-127063 20110607
- 国际申请: PCT/JP2012/065066 WO 20120606
- 国际公布: WO2012/169660 WO 20121213
- 主分类号: B01J31/38
- IPC分类号: B01J31/38 ; B01J37/02 ; B01J35/00 ; G02B27/00 ; B01J23/745 ; B01J21/06 ; B01J35/06
摘要:
Provided is a photocatalytic coating film that can develop excellent photocatalytic activity and exhibit superior adhesion to an adherend surface.The photocatalytic coating film is obtained by applying and drying a photocatalytic coating composition containing at least rod-like or needle-like titanium oxide particles and a binder component so that the photocatalytic coating film contains the titanium oxide particles in a content of 0.5 g/m2 or more. The photocatalytic coating film contains the titanium oxide particle in a content per unit volume (1 m2 by 1 μm thick) of less than 3.0 g. The titanium oxide particles preferably have an aspect ratio of 1.5 or more, the aspect ratio specified as the ratio of a long side length to a short side length of particle. The compositional ratio (by weight) of the titanium oxide particles to the binder component in the photocatalytic coating film is preferably from 1:6 to 30:1.
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