Roller assembly containing externally heated roller with cured fluorocarbon random copolymer overcoat and fuser apparatus containing same
US6521332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Oct 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3154
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A heater roller assembly for use with a fuser apparatus includes a housing comprising a radiation shield enclosing a radiant heat source, and a heater roller that is disposed within the housing and is externally heated by the radiant heat source. The heater roller includes a core, a base cushion layer overlying the core, and an outer layer overlying the base cushion layer. The outer layer of the heater roller includes a fluorocarbon random copolymer having subunits of wherein x is from 10 to 90 mole %, y is from 10 to 90 mole %, x+y equal 100 mole %, and ORf is a perfluoroalkoxy group. A fuser apparatus includes a fuser roller whose outer surface is in contact with the outer layer of a heater roller included in a heater roller assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.