Pigment of sodium salt of bis-methine-barbituric acid
US4269976A · kind A · utility
0Cited by
0References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1979 |
| Grant date | May 26, 1981 |
| Priority date | — |
| Expiry date | Aug 24, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B23/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to the pigment of the formula ##STR1## It colors plastic materials and lacquers in greenish-yellow shades of good lightfastness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.