Polyhalogenated phthalocyanine, process for the production thereof, and use thereof
US5223027A · kind A · utility
2Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 1991 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Oct 8, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B47/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A polyhalogenated phthalocyanine obtained by halogenation of phthalocyanine in the presence of aluminum chloride and contains not more than 0.02 part by weight, per 100 parts by weight of the phthalocyanine before the halogenation, of water-insoluble inorganic impurities derived from the aluminum chloride contributes to improvement of a printing ink in form plate abrasion properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.