2,9-dichloroquinacridone in platelet form
US5084573A · kind A · utility
13Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1990 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Jul 13, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0014
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
2,9-Dichloroquinacridone in platelet form having a length of 1-45 .mu.m, a width of 0.1-20 .mu.m and a thickness of 0.05-5 .mu.m; a process for the preparation thereof comprising conversion of the crude material in a polar solvent in the presence of a long chain thiol compound and a base; and the pigmentary use of said platelets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.