Hydrophilic coating film, method for producing same, humidification element, and humidification device
US10202511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2014 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Oct 8, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D133/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
To provide a hydrophilic coating film that excels not only in initial humidification performance, but also in long-term humidification performance as well as to provide a production method for the hydrophilic coating film, and a humidification element. A hydrophilic coating film (7) contains porous silica gel particles (3), fine inorganic particles (2) having an average particle diameter smaller than an average pore diameter of the silica gel particles (3), and a thickener (8). A production method for the hydrophilic coating film (7) coats a base material (1) with a coating composition and dries the coated base material (1), the coating composition containing water (6), a thickener (6), porous silica gel particles (3), and fine inorganic particles (2) having an average particle diameter smaller than an average pore diameter of the silica gel particles (3).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.