Solid solutions of pyrrolo-(3,4-C)-pyrroles with quinacridones
US4810304A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1987 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Nov 12, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0033
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Solid solutions of pyrrolo-[3,4-c]-pyrroles and quinacridones which contain PA0 (a) at least one compound of the formulae ##STR1## in which A and B are independently of each other one of the groups of the formulae ##STR2## in which R.sub.1 and R.sub.2 are independently of each other hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -alkoxy, --SR.sub.3, --N(R.sub.3).sub.2 --CF.sub.3, --CN or a group of the formulae ##STR3## R.sub.3 is C.sub.1 -C.sub.5 -alkyl and R.sub.4 and R.sub.5 are independently of each other hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C hd 5-alkoxy, --SR.sub.3 or --CN, and PA0 (b) at least one linear quinacridone compound of the formulae ##STR4## in which W, X, Y and Z are independently of one another halogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -alkoxy and i, k, m and n is zero, 1 or 2, the X-ray diffraction diagrams of the solid solutions differing from the sum of the X-ray diffraction diagrams of the individual components. These solid solutions are highly suitable for use as pigments for colouring high molecular weight organic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.