Containers, bottles, drums, vats, and tanks having a slippery surface
US10233334B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2017 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Nov 6, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24364
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure describes a strategy to create self-healing, slippery liquid-infused porous surfaces. Roughened (e.g., porous) surfaces can be utilized to lock in place a lubricating fluid, referred to herein as Liquid B to repel a wide range of materials, referred to herein as Object A (Solid A or Liquid A). Slippery liquid-infused porous surfaces outperforms other conventional surfaces in its capability to repel various simple and complex liquids (water, hydrocarbons, crude oil and blood), maintain low-contact-angle hysteresis (<2.5°), quickly restore liquid-repellency after physical damage (within 0.1-1 s), resist ice, microorganisms and insects adhesion, and function at high pressures (up to at least 690 atm). Some exemplary application where slippery liquid-infused porous surfaces will be useful include energy-efficient fluid handling and transportation, optical sensing, medicine, and as self-cleaning, and anti-fouling materials operating in extreme environments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.