High transparency pigments
US9487657B2 · kind B2 · utility
1Cited by
22References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2007 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Jan 8, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a method for preparing conditioned pigments that have smaller diameter and increased color strength, masstone and travel by milling pigment with a dispersant comprising polyurethane. Further, the invention provides the conditioned pigments prepared by the method of the invention and their applications to paints, coatings, inks, plastics, optical devices, color filters and so forth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.