Photoconductive block copolymers
US5080989A · kind A · utility
10Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1989 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Nov 29, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0764
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Photoconductive polycarbonate block copolymers are provided containing alternate polycarbonate blocks and photoconductor blocks. The photoconductive blocks are copolymers of polyesters and/or polycarbonates with reactive photonconductors which are preferably difunctional polyols and/or carboxylic acid derivatives. The block copolymers when blended with dyes form photoconductive layers in photoconductor elements which are photosensitive and highly resistant to solvent degradation. Dyes are aggregatable in such a block copolymer matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.