Tetraaroxyperylene-3,4,9,10-tetracarboxylic polyimides
US5677417A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1995 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Aug 29, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B69/102
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymeric tetraaroxyperylene-3,4,9,10-tetracarboxylic diimides of the formula I ##STR1## (R.sup.1 : denotes identical or different aryl radicals which may be substituted by cyano, nitro, halogen, C.sub.1 -C.sub.18 -alkoxy, C.sub.5 -C.sub.7 -cycloalkyl and/or C.sub.1 -C.sub.18 -alkyl and may each contain up to 24 carbon atoms; PA1 R.sup.2 : denotes C.sub.2 -C.sub.30 -alkylene groups whose carbon chain may be interrupted by from 1 to 10 oxygen atoms in ether function or by a phenylene or cyclohexylene group, or optionally C.sub.1 -C.sub.10 -alkylene- or oxygen-bridged C.sub.6 -C.sub.30 -arylene or cyclohexylene radicals; PA1 n: is from 2 to 100), preparation thereof and use thereof and also tetraaroxypery-lene-3,4,9,10-tetracarboxylic dianhydrides as intermediates therefor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.