Polyphthalocyanine compounds useful as dyestuffs
US4499018A · kind A · utility
5Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1982 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Oct 15, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B47/32
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A phthalocyanine product in which at least two phthalocyanine groups which may be metallized or unmetallized are joined by a bridging group, the bridging group being attached to the phthalocyanine groups through --CH.sub.2 --X.sub.o -- linkages where X.sub.o is a basic group and the phthalocyanine groups are attached to the methylene group of the linkages. The phthalocyanine product is useful as a dyestuff.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.