Super-liquid-repellent coating film and curable composition for forming super-liquid-repellent coating film
US11578232B2 · kind B2 · utility
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Key dates
| Filing date | Apr 13, 2017 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Mar 28, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09C1/3072
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention addresses the problem of providing a super-liquid-repellent coating film that has improved abrasion resistance. Provided as a means for solving the problem is a coating film that has a fluorine atom content of 1 to 60 wt %, the coating film having a surface that has an average surface roughness Ra of 0.5 to 20, a surface area ratio of 1.7 to 5, a contact angle with water of 150° or more, a contact angle with n-hexadecane of 80° or more, and a surface that has a contact angle with water of 150° or more after being rubbed 100 times with a PET film under a load of 100 g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.