Alkoxylated aliphatic amines to inhibit ozone fading of dyed polyamides
US3964861A · kind A · utility
5Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1974 |
| Grant date | Jun 22, 1976 |
| Priority date | — |
| Expiry date | Jan 28, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/924
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
When from about 0.4% to about 5% of tertiary amines ##EQU1## WHERE R is an alkyl radical of 8-25 carbon atoms, R' is an alkylene radical of 2 to 10 carbon atoms, R" and R"' are hydrogen, a phenyl, or an alkyl radical of 1 to 3 carbons, but where R" and R"' are not both hydrogen, and x, y, and z are each at least 1 (x+y) is not greater than 6, preferably 2, and (x+y+z) is not greater than 9, preferably 3, are coated on nylon fiber, or are added to the dyebath, 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.