Mono-N-alkyl-quinacridone pigments
US5725651A · kind A · utility
17Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1997 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Mar 10, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0653
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Mono-N-alkyl-quinacridone pigments are disclosed. They exhibit high light fastness, high temperature stability and high migration fastness. Moreover, they show hypsochromic shifts, fluorescence and high photoconductivity. These pigments are suited for coloring high molecular weight organic materials, for use as light emitting materials of organic electroluminescent elements as well as photoreceptors of electrophotography.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.