Superhydrophobic aerogel that does not require per-fluoro compounds or contain any fluorine
US9040435B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2009 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Jun 8, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/259
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided are superhydrophobic coatings, devices and articles including superhydrophobic coatings, and methods for preparing the superhydrophobic coatings. The exemplary superhydrophobic device can include a substrate component and one or more superhydrophobic coatings disposed over the substrate component, wherein at least one of the one or more superhydrophobic coatings has a water contact angle of at least about 150° and a contact angle hysteresis of less than about 1°. The one or more superhydrophobic coatings can include an ultra high water content acid catalyzed polysilicate gel, the polysilicate gel including a three dimensional network of silica particles having surface functional groups derivatized with a silylating agent and a plurality of pores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.