Method of imparting stain resistance to colored substrates which include a filamentary material
US4695497A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1987 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Jan 2, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2279
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of imparting stain resistance to colored substrates which include a filamentary material is disclosed. A first dispersion of a polymer is applied to the filamentary material as a finish during the manufacture of the filamentary material, and a second dispersion of a polymer is applied as an overspray after the filamentary material has been formed into a colored substrate, to achieve at least 300 ppm fluorine from each application on the filamentary material (at least 600 ppm fluorine total). The dispersions are independently selected from the group consisting of PA1 i. a first polymer comprising PA2 (a) from about 50 to about 85 parts by weight of units derived from a fluorinated monomer or mixture of fluorinated monomers having the formula ##STR1## (b) from about 15 to about 50 parts by weight of units derived from one or more monomers having the formula ##STR2## ii. a dispersion comprising (a) from about 10 to about 50 parts by weight the first polymer; PA2 (b) from about 5 to about 10 parts by weight an emulsifier; and PA1 (c) from about 40 to 85 parts by weight a second polymer derived from a monomer having the formula ##STR3## wherein R.sub.f is straight or branched-c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.