Composition and process for applying hydrophobic coating to fibrous substrates
US10919647B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2015 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Oct 12, 2036 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2200/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Fabrics are treated with a hydrophobic treatment that includes at least one hydrophobic monomer and a crosslinker. The treatment is low in volatile organic compounds and water. It is a liquid at 22° C. or a suspension having a phase that is liquid at 22° C. The monomer and crosslinker are cured in a free radical polymerization to form a hydrophobic coating on a fibrous substrate. The curing is performed by removing interstitial air from the fabric and then curing the fabric in a low oxygen environment without allowing it contact with oxygen or air from the time the interstitial air is removed until conversion of monomers reaches at least 50%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.