Photoconductive elements with copolymer charge transport layers
US4007043A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1975 |
| Grant date | Feb 8, 1977 |
| Priority date | — |
| Expiry date | Jul 16, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Method for achieving free radical initiated copolymerization of an addition monomer having pendant therefrom a strong donor group with an addition monomer having pendant therefrom a strong acceptor group. Copolymers prepared according to this method can be represented by the following formula: ##STR1## wherein R is hydrogen or methyl; PA1 R' is hydrogen or methyl; PA1 R" is hydrogen or methyl; PA1 R'" is selected from the group consisting of --NO.sub.2, halogen, --CN and --CF.sub.3 ; PA1 X and Y are independently selected from the group consisting of hydrogen, chlorine, bromine, alkyl of 1 - 4 carbon atoms and phenyl; PA1 a and b can range from 0 - 4; and PA1 n and m can range from about 5 to about 95 percent. The polymeric compositions prepared according to this method are suitable for use in electrophotography either alone as the primary photoresponsive entity or in combination with other photoconductive materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.