Blue dye composition
US5342416A · kind A · utility
0Cited by
11References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1992 |
| Grant date | Aug 30, 1994 |
| Priority date | — |
| Expiry date | Dec 28, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/922
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a blue dye composition having excellent percentage of exhaustion which comprises a compound of formula(I) and a compound of formula(II): ##STR1## wherein each of said R's, which may be the same or different, represents a C.sub.1-4 alkyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.