Method to impart coffee stain resistance to polyamide textile substrates
US5364541A · kind A · utility
3Cited by
8References
9Claims
0Family size
Inventors
Key dates
| Filing date | Jun 5, 1992 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Jun 5, 2012 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M15/233
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides methods and compositions to impart coffee stain resistance to polyamide textile substrates such as carpets. The compositions comprise either (i) a copolymer selected from the group consisting of a hydrolyzed aromatic-containing vinyl ether maleic anhydride copolymer, a half ester of an aromatic-containing vinyl ether maleic anhydride copolymer, and mixtures thereof, or (ii) an aromatic-containing acrylate copolymerized with an acid selected from the group consisting of acrylic acid and maleic acid. The coffee stain-resistant polyamide textile substrates made are also part of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.