Substituted thioureas to inhibit ozone fading of dyed polyamides
US4105404A · kind A · utility
2Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1973 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Oct 1, 1993 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P5/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
When from about 0.5% to about 5% of N,N'-disubstituted thioureas are coated on nylon fiber, improved dyefastness is achieved compared to an untreated dyed nylon fiber when this fiber is exposed to ozone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.