Azoic pigments having a silica core
US4566908A · kind A · utility
44Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1984 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Feb 24, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09716
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An azoic pigment having a silica core comprising a core of a fine powder of silica having a particle diameter of not more than 10 microns and a coating of a mono- or polyazoic dye chemically bound to the surface of the silica core through an aminosilane coupling agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.