Crystal modification of a diketopyrrolopyrrole pigment
US5650520A · kind A · utility
11Cited by
2References
10Claims
0Family size
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Key dates
| Filing date | Jun 22, 1995 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Jun 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09758
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Diketopyrrolopyrrole of the formula ##STR1## in its .beta.-modification. The new .beta.-modification is likewise suitable as a pigment for coloring high-molecular weight organic material and, in comparison to the a-modification, shows a shift in shade towards yellowish-red.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.