Photoconductive composition of an aldehyde condensate
US3943108A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1974 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | Sep 27, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J5/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymeric photoconductive composition having recurring structural units of the formula: ##EQU1## WHEREIN R is hydrogen or alkyl of 1-4 carbon atoms; PA1 R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; PA1 B is phenylene or a diradical of a fused aromatic nucleus having up to four benzene rings; PA1 A.sub.r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole, their respective homologues and analogues; PA1 x is 0 or 1; PA1 y is 0 or 1; and PA1 n is at least 2. The above polymeric compositions are suitable for use as charge transport matrices for photogenerator materials or can themselves be complexed with an appropriate activator and thus, form a charge transfer complex which is itself capable of photoresponse within the visible region of the electromagnetic spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.