Process for the photochemical and thermal stabilization of undyed and dyed or printed polyester fiber materials
US5298030A · kind A · utility
50Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1993 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | Feb 10, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/3492
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is described for the photochemical and thermal stabilization of undyed and dyed or printed polyester fiber materials, which comprises treating said materials with a compound of formula ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl, PA0 R.sub.2 is C.sub.1 -C.sub.12 alkyl, and PA0 n is 0 to 5. Dyeings of superior lightfastness and sublimation fastness on polyester and cellulose acetate are obtained by this process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.