Superamphiphobic paper
US9297118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2014 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Aug 16, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H25/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a method of making a superamphiphobic paper, a fibrous pulp is refined in water to generate fibrils of an average diameter. The water is drained from the fibrils through a mesh. A less polar than water liquid is added to the fibrils, thereby suspending the fibrils therein so as to inhibit agglomeration between the fibrils. The less polar than water liquid and any remaining water are drained from the fibrils. The fibrils are pressed and dried so as to form the paper in which the fibrils have an average spacing. Amorphous phase cellulose is removed from the paper. A predetermined compound is deposited onto a selected surface of the paper. The average diameter and average spacing are chosen so that the paper is phobic to the first liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.