Alkylated fluorochemical oligomers and use thereof in the treatment of fibrous substrates
US6525127B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2000 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Jan 19, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2200/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention provides a method of treating fibrous substrates, such as leather, by contacting the substrate with a fluorochemical compound comprising: a fluorochemical oligomeric portion comprising an aliphatic backbone with a plurality of pendant fluoroaliphatic groups, each fluoroaliphatic group having a fully fluorinated terminal group and each independently linked to a carbon atom of the aliphatic backbone through an organic linking group; an aliphatic moiety; and a linking group which links the fluorochemical oligomeric portion to the aliphatic moiety. The fluorochemical compounds provide desirable oil, water and stain repellency to fibrous substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.