Polyester binder component in multilayer photoconductive element
US4284699A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 1978 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | May 30, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/109
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multilayer photoconductive element containing a photoconductive insulating composition and a conducting layer, such element having in association with the photoconductive composition an amorphous, water-insoluble polyester selected from the group consisting of PA0 (a) polyesters prepared from units derived from at least one aromatic dicarboxylic acid component and at least one diol component, at least one of said acid or diol components being a non-linear monomer selected from the group consisting of an isophthalic acid component or a branched-chain alkylene diol having the formula EQU HO--CH.sub.2 --R.sup.1 --CH.sub.2 --OH PA0 wherein R.sup.1 is a branched-chain alkylene group, and PA0 (b) polyester copolymers prepared from units derived from at least one aromatic dicarboxylic acid component and at least one diol component, at least one of said acid or said diol components being a mixture of at least two different acids or two different diols, respectively, so that a copolymer is obtained, and at least one of said acid or one of said diol components being selected from the group consisting of a non-linear monomer as defined above or a cycloaliphatic diol; with the proviso that s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.