Compositions and methods for imparting stain resistance to textile articles
US4800118A · kind A · utility
5Cited by
26References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1987 |
| Grant date | Jan 24, 1989 |
| Priority date | — |
| Expiry date | Nov 4, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2893
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A light stabile composition for imparting stain resistance to polyamide fiber-containing textile articles (e.g. nylon, wool or silk carpets) comprises a halogenated (e.g. brominated or chlorinated) aryl group-containing product of the condensation polymerization of a hydroxyaryl sulfonic acid (e.g., para-hydroxyphenyl sulfonic acid), a dihydroxydiaryl sulfone (e.g., dihydroxydiphenyl sulfone) and an aldehyde (e.g., formaldehyde). The polyamide fiber-containing textile articles are converted to a stain resistant product by containing the fibers with an acidified aqueous solution of the aforesaid composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.