Water and oil repellent porous materials and processes for making the same
US6638610B1 · kind B1 · utility
22Cited by
17References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2000 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Mar 6, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to a hydrophobic and oleophobic porous materials and processes for making the same. In a first process of the invention, a thermoplastic substrate is at least partially coated and/or impregnated with a surface treatment material. In a second process of the invention, thermoplastic particles which comprise a surface treatment material are sintered together. Preferred surface treatment materials are fluorochemicals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.