Thermally-transferable fluorescent 7-aminocarbostyrils
US4891352A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1988 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Dec 23, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A donor element for thermal transfer comprising a support having on one side thereof a fluorescent 7-aminocarbostyril compound dispersed in a polymeric binder, and on the other side thereof a slipping layer comprising a lubricant. In a preferred embodiment, the compound has the formula: ##STR1## wherein: each X and Y independently represents hydrogen; a substituted or unsubstituted alkyl group having from 1 to about 10 carbon atoms; a substituted or unsubstituted aryl group having from about 6 to about 10 carbon atoms; or the atoms necessary to complete, along with the nitrogen to which it is attached, a 5- or 6-membered heterocyclic ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.