Diketopyrrolopyrrole pigments in platelet form
US5095122A · kind A · utility
11Cited by
28References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1990 |
| Grant date | Mar 10, 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
Organic pigments selected from the diketopyrrolopyrrole, azo, isoindolinone and isoindoline series, which pigments consist of 50% by weight of platelets which are from 5 to 50 .mu.m long, 2 to 50 .mu.m wide and 0.01 to 5 .mu.m thick, with the proviso that the ratios of length:thickness and width:thickness must be at least 3. The pigments in platelet form are excellently suited to producing effect colorations in high molecular weight organic material and in cosmetic products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.