Pigment formulations, processes for their preparation and their use for pigmenting aqueous, alcoholic or aqueous-alcoholic printing ink systems and colored lacquer systems
US4334932A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 6, 1981 |
| Grant date | Jun 15, 1982 |
| Priority date | — |
| Expiry date | Apr 6, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D11/037
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Pigment formulations which contain (1) 10-90% by weight, based on the whole formulation, of a pigment mixture of (a) 99.5-90 mol %, based on the pigment mixture, of at least one monoazo pigment of the general formula EQU A--N=N--B and (b) 0.5-10 mol %, based on the pigment mixture, of at least one monoazo pigment of the formula EQU (A'-N=N-B'--(X).sub.m characterized by the presence of at least one --COOH, --SO.sub.3 H, metal carboxylate or metal sulfonate group per pigment molecule, and (2) 90-10% by weight, based on the whole preparation, of a polyacrylate resin containing carboxylic acid groups. The novel pigment formulations are outstandingly suitable for pigmenting aqueous, alcoholic and aqueous-alcoholic printing ink systems and colored lacquer systems and are distinguished in particularlby good shelf life. The substituents A, B, A', B', X and m are as defined in claim 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.