Pigment concentrate
US8969438B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2007 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Oct 8, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2467/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Non-aqueous pigment concentrate comprising one or more pigments, one or more dispersants, and at least one resin, characterized in that the resin is a polyester comprising at least one oligo-ester building block with a hydrophobic tail linked thereto, wherein the hydrophobic tail is selected from the group consisting of: (a) branched hydrocarbons, (b) hydrocarbons containing a cyclic group, and (c) linear hydrocarbons, provided that when said linear hydrocarbon is linked to the oligo-ester building block via an ester group, the linear hydrocarbon contains 3 to 12 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.