Method to impart stain resistance to polyamide textile substrates
US5118551A · kind A · utility
10Cited by
4References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1991 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Jul 11, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2279
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides methods and compositions to impart coffee stain resistance to polyamide textile substrate 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.