Modification of surfaces for fluid and solid repellency
US10245355B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2014 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | May 27, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D5/086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Articles, methods of making, and uses for modifying surfaces for liquid repellency are disclosed. The liquid repellant surfaces comprise a surface comprising an anchoring layer. The anchoring layer, which forms an immobilized molecular anchoring layer on the surface, has anchoring molecules, where each anchoring molecule has a head group that is covalently linked to the surface and a functional tail group. The anchoring molecules are crosslinked to each other to form a crosslinked network. The functional tail group has an affinity for a lubricating liquid, which is applied to the treated surface to form a lubricating layer. The anchoring layer and replenishable lubricating liquid are held together by non-covalent attractive forces. Together, these layers form an ultra-repellant slippery surface that repels certain immiscible liquids and prevents adsorption, coagulation, and surface fouling by components contained within.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.