Thermally-transferable fluorescent compounds
US4891351A · kind A · utility
17Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1988 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Dec 12, 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 derivative of a 1,8-naphthalimide 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: R is hydrogen; a substituted or unsubstituted alkyl group of 1 to about 6 carbon atoms; or a carbocyclic or heterocyclic ring of about 5 to about 10 atoms; and PA1 D is a monovalent, nonionic, nonquenching moiety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.