Roller for a fusing station
AssigneeEastman Kodak Company
InventorsJiann-Hsing Chen, Joseph A. Pavlisko, Po-Jen Shih, Charles E. Hewitt
Life of this patent
Estimating the term…
Abstract
A fusing-station member, which member can be a compliant fuser roller or a compliant pressure roller for use in a fusing station of an electrostatographic machine, and which member includes a base cushion layer formed on a core member, with the base cushion layer coated by a thin protective gloss control layer. The base cushion layer is a highly crosslinked addition-polymerized polyorganosiloxane material made by thermally curing, below 100° C., a formulation which includes three types of filler particles, namely hollow flexible microballoon particles, strength-enhancing solid particles, and thermal-conductivity-enhancing solid particles.
Claims35
For use in a fusing station of an electrostatographic machine, an elastically deformable fusing-station roller, said fusing-station roller comprising:
- a core member, said core member being substantially rigid and having a cylindrical outer surface;
- a base cushion layer, said base cushion layer formed on said core member;
- a protective layer coated on said base cushion layer;
- wherein said base cushion layer is a thermally cured polyorganosiloxane material made by an addition-polymerization of an uncured formulation, said uncured formulation including hollow filler particles in form of microballoons having flexible walls, said microballoons having a predetermined hollow-filler concentration in said uncured formulation, and said uncured formulation further including solid filler particles;
- wherein the thermal conductivity of said base cushion layer is in a range of approximately between 0.2 BTU/hr/ft/° F.–0.7 BTU/hr/ft/° F.;
- and
- wherein said addition-polymerization of said uncured formulation is carried out at a temperature below 100° C.
For use in a fusing station of an electrostatographic machine, an elastically deformable fusing-station roller, said fusing-station roller comprising:
- a core member, said core member being substantially rigid and having a cylindrical outer surface;
- a base cushion layer, said base cushion layer formed on said core member;
- a protective layer coated on said base cushion layer;
- wherein said base cushion layer is a thermally cured polyorganosiloxane material made by an addition-polymerization of an uncured formulation, said uncured formulation including hollow filler particles in form of microballoons having flexible walls, said microballoons having a predetermined hollow-filler concentration in said uncured formulation, and said uncured formulation further including solid filler particles;
- wherein said protective layer comprises a chemically unreactive, low surface energy, flexible, polymeric material suitable for high temperature use;
- wherein said protective layer is a gloss control layer;
- a thermal conductivity of said gloss control layer is in a range of approximately between 0.07 BTU/hr/ft/° F.–0.11 BTU/hr/ft/° F.;
- and
- a thickness of said gloss control layer is in a range of approximately between 0.001 inch–0.004 inch;
- and
- wherein said addition-polymerization of said uncured formulation is carried out at a temperature below 100° C.;
- and wherein the thermal conductivity of said base cushion layer is in a range of approximately between 0.2 BTU/hr/ft/° F.–0.7 BTU/hr/ft/° F.
For use in a fusing station of an electrostatographic machine, an elastically deformable fusing-station member, said elastically deformable fusing-station member comprising:
- a substrate;
- a base cushion layer, said base cushion layer formed on said substrate;
- a protective layer coated on said base cushion layer;
- wherein said base cushion layer is a thermally cured polyorganosiloxane material made by an addition-polymerization of an uncured formulation, said uncured formulation including hollow filler particles in the form of microballoons having flexible walls, said microballoons having a predetermined hollow-filler concentration in said uncured formulation, and said uncured formulation further including solid filler particles;
- wherein the thermal conductivity of said base cushion layer is in a range of approximately between 0.2 BTU/hr/ft/° F.–0.7 BTU/hr/ft/° F.;
- and
- wherein said addition-polymerization of said uncured formulation is carried out at a temperature below 100° C.
Dependencies are inferred from the claim text.