Perylene pigment compositions
US6391104B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Dec 1, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0034
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to perylene pigment compositions containing a reactive co-precipitated blend of(1) about 75 to about 99.9 mol %, relative to the pigment composition, of a compound having the formula (I)  whereinR is hydrogen, C1-C6 alkyl, C5-C8 cycloalkyl, C7-C6 aralkyl, or C6-C10 aryl,A is C1-C6 alkyl, C1-C6 alkoxy, a sulfonyl group, amino, ammonium, hydroxy, nitro, or halogen, andm is zero or a number from 1 to 8; and(2) about 0.1 to about 25 mol %, relative to the pigment composition, of a perylene dicarboxamidine imide having the formula (II)  whereinW is optionally substituted or modified C2-C3 alkylene, andR, A, and m are defined as above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.