Conductive substrate bearing a elastomeric polyurethane coating containing a conductivity control agent
US5554474A · kind A · utility
6Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1994 |
| Grant date | Sep 10, 1996 |
| Priority date | — |
| Expiry date | Jun 30, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A member for electrically cooperating with a conductive support surface to attract charged toner particles from the surface towards the member is disclosed. The member comprises a conductive substrate capable of supporting a uniform bias potential thereon and at least one coating comprising a resilient elastomeric polyurethane. The polyurethane is formed by reacting: PA1 (a) a polyisocyanate prepolymer and PA1 (b) a hardening mixture comprising: PA2 (i) a polyol and, PA2 (ii) as a conductivity control agent in the form of a phosphonium tetrahaloferrate salt represented by the formula: ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.