Fluorinated anti-stain and soil release finishes
US4295976A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1976 |
| Grant date | Oct 20, 1981 |
| Priority date | — |
| Expiry date | Sep 28, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2172
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
New fluorinated telomerization products are disclosed which are products produced by the reaction of: PA1 a. one mole of an ester of one or more acids of the formula EQU HS-A(COOH).sub.n (I) with one or more polyols, and PA1 b. 1 to 5 moles of one or more compounds possessing at least one ethylenic bond, one at least of these compounds conforming to the general formula ##STR1## In formulae (I) and (II), A represents a hydrocarbon radical which may contain atoms of oxygen, nitrogen, phosphorus, sulphur or halogen, n is a whole number from 1 to 4, Rf is a perfluorinated chain containing 1 to 20 carbon atoms, B is a bivalent chain, one of the symbols R represents a hydrogen atom and the other a hydrogen atom or an alkyl group containing 1 to 4 carbon atoms. These products when applied to substrates, such as textile fabrics, confer on them a permanent anti-stain and soil release finish while permitting easy elimination of soil by washing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.