Pigment composition and printing ink containing the same
US7074268B2 · kind B2 · utility
2Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2004 |
| Grant date | Jul 11, 2006 |
| Priority date | — |
| Expiry date | Nov 23, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/0063
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A pigment composition obtainable by dry-milling an organic pigment in the presence of a resin for a printing ink,the resin being composed of a synthetic resin for a printing ink in an amount of 10 to 80 parts by weight per 100 parts by weight of the organic pigment and an aliphatic hydrocarbon resin which is extracted from gilsonite and has a softening point of 120 to 125° C. in an amount of 0.1 to 5 parts by weight per 100 parts by weight of the organic pigment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.