Pigment compositions
US5614013A · kind A · utility
1Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1994 |
| Grant date | Mar 25, 1997 |
| Priority date | — |
| Expiry date | Oct 18, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/001
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment composition comprising (A) an azo pigment, (B) an azo reaction product of (i) a diazonium salt of a primary aromatic amine having a carboxyl group or sulphonic acid group meta or para to an amino group with (ii) a coupling component comprising one or more unsubstituted or substituted naphthols, at least 50 mole % of said coupling component being a naphtholsulphonic acid, or a salt of said reaction product, and, optionally, (C) an organic resin containingan acidic group or a salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.