US5906881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated fuser members
Assignee: Eastman Kodak Co
•
Filing: 1996-10-15
•
Granted: 1999-05-25
•
Expires: 2016-10-15
Abstract
Abstract Coated fuser members such as a fuser roller, pressure roller, or fuser belt are coated with a release coating comprises an outermost layer of fluoropolymer resin powder directly bonded to an underlying fluoroelastomer layer.
Inventors
- 👤 Jiann H. Chen
- 👤 Richard J. Kosakowski
- 👤 Gary F. Roberts
- 👤 Roger H. Calendine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:30
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; G03G15/2057; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/25; Y10T428/254; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
46 words
A fuser member comprising, in order: a support; a fluoroelastomer layer; a fluoropolymer resin powder layer directly on said fluoroelastomer layer, wherein the fluoroelastomer layer consists essentially of a fluoroelastomer, curing agents, and an inert filler selected from the group consisting of mineral oxides and carbon.
Claim 2
Dependent Claim
46 words
A fuser member comprising, in order: a support; a fluoroelastomer layer; a fluoropolymer resin powder layer directly on said fluoroelastomer layer, wherein the fluoroelastomer layer consists essentially of a fluoroelastomer, curing agents, and an inert filler selected from the group consisting of mineral oxides and carbon.
Claim 3
Dependent Claim
20 words
The fuser member of claim 1, wherein said fluoropolymer resin layer has a surface roughness of 0.25 to 2.5 microns.
Claim 4
Dependent Claim
20 words
The fuser member of claim 1, wherein said fluoropolymer resin layer has a surface roughness of 0.5 to 2 microns.
Claim 5
Dependent Claim
20 words
The fuser member of claim 1, wherein said fluoropolymer resin layer has a thickness of from 25 to 75 microns.
Claim 6
Dependent Claim
20 words
The fuser member of claim 1, wherein said fluoropolymer resin layer has a thickness of from 25 to 50 microns.
Claim 7
Dependent Claim
26 words
The fuser member of claim 1, wherein said fluoroelastomer comprises a copolymer of vinylidene fluoride and hexafluoropropylene, or a terpolymer of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene.
Claim 8
Dependent Claim
40 words
The fuser member of claim 1, wherein said fluoropolymer resin powder layer comprises a polymer selected from the group consisting of polytetrafluoroethylene, polyperfluoroalkoxy, polyfluorinated ethylene-propylene, poly(ethylenetetrafluoroethylene), polyvinylfluoride, polyvinylidene fluoride, poly(ethylene-chloro-trifluoroethylene), polychlorotrifluoroethylene and blends of one or more of these polymers.
Claim 9
Dependent Claim
15 words
The fuser member of claim 7 wherein said fluoropolymer resin powder layer is a polyperfluoroalkoxy.
Claim 10
Dependent Claim
45 words
The fuser member of claim 1, wherein said support comprises a metal element and a base cushion layer, said base cushion layer comprising a material selected from the group consisting of silicone rubbers, fluorosilicone rubbers, fluoroelastomer polymers, and interpenetrating networks of siloxanes and fluoroelastomer polymers.
Claim 11
Dependent Claim
21 words
The fuser member of claim 1 wherein said fluoropolymer resin powder has a particle size of from 20 to 40 microns.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-05-24 | 2002-11-23 | 2003-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-05-24 | 2006-11-23 | 2007-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-05-24 | 2010-11-23 | 2011-05-25 | $7700.00 | Window Closed / Lapsed |