Monoazo pigments from diazotized 5-acylaminoanthranilic acid derivatives and acetoacetylaminobenzimidazolones
US4206114A · kind A · utility
4Cited by
1References
7Claims
0Family size
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Key dates
| Filing date | Jul 17, 1978 |
| Grant date | Jun 3, 1980 |
| Priority date | — |
| Expiry date | Jul 17, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B29/338
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Monoazo pigments of the formula ##STR1## wherein R.sub.1 and R.sub.2 represent hydrogen, methyl or ethyl, and PA1 X represents hydrogen, chlorine, methyl, methoxy or ethoxy, are useful for coloring plastics in fast yellow shades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.