Isoindoline pigment having improved low shear dispersibility
US6143067A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1999 |
| Grant date | Nov 7, 2000 |
| Priority date | — |
| Expiry date | Jan 13, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0014
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment composition, which comprises PA0 70-95% by weight of a pigment of formula ##STR1## 5-15% by weight of at least one C.sub.2 -C.sub.16 alkylenedicarboxylic acid-di-C.sub.1 -C.sub.12 alkyl ester; and PA0 0-15% by weight of at least one C.sub.12 -C.sub.24 fatty acid ester of polyhydroxy-C.sub.2 -C.sub.12 alkane; each based on the total weight of the pigment composition. Also claimed is a process for the preparation of this pigment composition and its use for mass-colouring in particular high molecular weight organic materials which can be moulded as plastics or melts. The products obtained are distinguished by an improved low shear dispersibility effect at high tinctorial strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.