Cleaning blade for use with photoelectronic copying machine
US4825249A · kind A · utility
18Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1988 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Jan 4, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2471/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved cleaning blade for a photoelectronic copying machine. It has a sharp, resilient edge and is superior in wear resistance, and lubricating and cleaning properties. The substrate of the cleaning blade is urethane rubber and is coated with perfluoropolyether having a main structural unit represented by --C.sub.x F.sub.2x --O-- (x is 1, 2, 3 or 4) and having an isocyanate, hydroxyl, carboxyl or amino group at least at one end thereof. It may be coated with a mixture of the perfluoropolyether and an isocyanate group or a hydroxyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.