Barium laked phenylazonaphthalene dye containing sulfonic acid groups
US4014866A · kind A · utility
8Cited by
9References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 1975 |
| Grant date | Mar 29, 1977 |
| Priority date | — |
| Expiry date | May 29, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B63/005
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Azo dyes containing sulfonic acid groups laked with barium and derived from an anilinesulfonic acid as diazo component and a .beta.-naphtholsulfonic acid as coupling component for example a dye of the formula ##STR1## The dyes are eminently suitable as pigments for coloring surface coating compositions, printing inks and particlarly resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.