Surface-treated organic pigments
US6896726B2 · kind B2 · utility
12Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2002 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | May 7, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B69/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to surface-treated organic pigments, to a process for their preparation and to their use in colouring a high molecular weight organic material. Compared with untreated pigments, the surface-treated pigments exhibit better rheological properties and/or no warping in the pigmenting of partially crystalline plastics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.