Treatment of polyamide materials with partial fluoroesters or fluorothioesters of maleic acid polymers and sulfonated aromatic condensates
US5750445A · kind A · utility
4Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1997 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | May 9, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2967
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention comprises a process for providing soil resistance and resistance to staining by acid dyes to fibers and textiles by simultaneous or sequential application of a sulfonated phenol-formaldehyde condensation product and partial fluoroesters or fluorothioesters formed from copolymers of maleic anhydride and perfluoroalkyl alcohols or perfluoroalkyl thiols.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.