Electrophoretic migration imaging process
US4282354A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1979 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | Apr 18, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G17/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In general, materials having the structure ##STR1## wherein A represents phenylene, napthylene, anthracenediyl, and dibenzothien-diyl; PA0 R.sub.1 and R.sub.2, which may be the same or different when taken alone represent hydrogen, cyano, alkylcarbonyl and arylcarbamoyl, arylcarbonyl, cyanoaryl; PA0 R.sub.1 and R.sub.2, when taken together, represent sufficient atoms to form substituted and unsubstituted radicals selected from the group consisting of furanylidene, fluorenylidene, pyrimidinylidene, thiazolidinylidene, pyrrolinyl, and indenyl, isoxazolinylidene, pyrazolinylidene and indanylidene, wherein said substituents are selected from the group consisting of hydrogen, cyano, aryl, oxo, thioxo, nitro, alkyl, nitroaryl, carbamoyl and cyanoalkyl; and PA0 alkyl represents an alkyl group having from one to six carbon atoms; aryl represents an aromatic nucleus selected from the group consisting of benzene, napthalene or anthracene, are useful in electrophoretic migration imaging processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.