Substituted phthalocyanine
US6444807B1 · kind B1 · utility
27Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2001 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Mar 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/029
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to phthalocyanine compounds and are represented by the formula: The compounds are used as a colorant and a pigment precursor, especially in light-sensitive compositions for color filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.