Pentamethine dyestuffs and derivatives
US5138070A · kind A · utility
15Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 1990 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Aug 21, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/245
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Dyestuffs of the formula ##STR1## and their base derivatives, in which the radicals have the meaning given in the description, are outstandingly suitable for laser transfer printing or as optical recording materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.