1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides
US6184378A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Sep 24, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic diimide of the general formula VI ##STR1## where PA1 X.sup.1 and X1 re independently bromine or --L--R, where PA2 L is 1,2-ethylene, 1,2-ethenylene or 1,2-ethynylene and PA2 R is hydrogen or C.sub.1 -C.sub.30 -alkyl whose carbon chain can be interrupted by one or more groups --O--, --S--, --NR.sup.3 --, --CO-- and/or --SO.sub.2 -- and/or which can be substituted one or more times by --COOR.sup.3, --SO.sub.3 R.sup.3, hydroxyl, cyano, C.sub.1 -C.sub.6 -alkoxy, C.sub.5 -C.sub.8 -cycloalkyl or aryl or by a 5- to 7-membered heterocyclic radical which is attached via a nitrogen atom and can include further heteroatoms and/or can be aromatic, R.sup.3 being hydrogen or C.sub.1 -C.sub.6 -alkyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.