Fluorescent aryloxy-substituted perylene-3,4,9,10-tetracarboxylic acid diimides
US4845223A · kind A · utility
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7Claims
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Key dates
| Filing date | Dec 8, 1986 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Dec 8, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B5/62
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The novel compounds of the general formula ##STR1## where R.sup.1 and R.sup.2 are identical or different aliphatic, cycloaliphatic, aromatic or heterocyclic radicals which are free of groups which impart water solubility, PA1 X, Y and Z are each chlorine, bromine or a radical OR.sup.3 and PA1 R.sup.3 is unsubstituted or substituted phenyl, naphthyl or anthryl, are very useful as fluorescent dyes in organic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.