Aqueous oil and water repellent compositions which cure at ambient temperature
US5350795A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1993 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Jul 9, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Fluorochemical compositions for treating textile fibers and fabrics to impart oil and water repellency without thermal treatment are provided. The compositions comprise an aqueous, substantially organic solvent free, solution or dispersion of (a) a fluorochemical acrylate copolymer comprised of a fluorinated acrylate monomer, polyalkylene glycol acrylate or methacrylate, and polyalkylene glycol diacrylate or dimethacrylate; and (b) a polyalkoxylated polyurethane having pendant perfluoroalkyl groups comprised of an aliphatic or aromatic tri- or higher order isocyanate, a fluorinated alcohol, amine, or mercaptan, and a poly(oxyalkylene) diol or dithiol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.