Eastman-kodak Company

Gary F Roberts

Jiann H Chen

Muhammed Aslam

Jiann-Hsing Chen

Lawrence Paul Demejo

Richard J Kosakowski

William B Vreeland

Lawrence P DeMejo

John E Derimiggio

Wayne Thomas Ferrar

Tsang J Chen

William J Staudenmayer

John J Fitzgerald

Roger H Calendine

David Francis Cahill

Borden H Mills

Stephen V Davis

Charles Eugene Hewitt

Richard John Kosakowski, Jr

Ming-Shih Lian

The toner fuser roll of the present invention, which is characterized by good thermal conductivity and resistance to degradation by release agents in addition to excellent wear properties, is capable of producing toner fused images with desirably high gloss. In accordance with the invention, the fuser roll comprises a cylindrical core and a base cushion layer comprising a condensation-cured poly(dimethylsiloxane) elastomer formed on the core. A barrier layer that comprises a cured fluorocarbon polymer and includes a particulate filler overlies the cushion layer. Overlying the barrier layer is a highly smooth outer surface layer comprising an addition-cured poly(dimethylsiloxane) elastomer and having a roughness value, R,, no greater than about 10 microinches. Further in accordance with the invention is a process for forming the just described toner fuser roll. In addition to its capability of producing a highly smooth PDMS outermost layer, the process is environmentally advantageous, employing coating formulations containing volatile organic compounds at levels below those mandated by environmental regulations.

Toner fuser roll for high gloss imaging and process for forming same

Coated fuser members such as a fuser roller, pressure roller, or fuser belt, and the method of making the coated fuser members are disclosed. The release coating comprises an outermost layer of fluoropolymer resin uniquely bonded to a fluoroelastomer layer.

Coated fuser member and methods of making coated fuser members

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.

Coated fuser members

A fuser belt comprising an amorphous fluoropolymer outer layer for fusing a thermoplastic resin toner image to a substrate produces high gloss images, wherein the amorphous fluoropolymer has the structure: ##STR1## in which m is 20 mole percent or 35 mole percent and n is 65 mole percent or 80 mole percent.

Amorphous fluoropolymer coated fusing belt

A release oil barrier layer is coated over the silicone rubber cushion layer of a toner fusing roll by means of a coating composition having a low VOC content and comprising an aqueous dispersion of a fluorocarbon polymer in particulate form and a water-dispersible polyurethane.

Fusing roll having an oil barrier layer

A fuser member for fusing a thermoplastic resin toner image to a substrate having:

Amorphous fluoropolymer coated fusing member

This invention provides a fuser member comprising a core having a polymeric coating wherein said wrinkle index of said fuser member is less than 75, said wrinkle index (WI) being calculated by the following formula: ##EQU1## where: S is the stiffness of the core in megaPascals (MPa);

Low wrinkle performance fuser member

A method of making a fuser member such as a fuser roller, pressure roller, or fuser belt, comprising of bonding an outermost fluoropolymer resin layer to an inner fluoroelastomer layer by means of a fluoropolymer-containing polyamide-imide primer layer.

Coated fuser members and methods of making coated fuser members

A fuser for fixing electrostatographic images comprising a fusing roll and a pressure roll is disclosed. The pressure roll has a rigid metal core coated with an amorphous fluoropolymer. The fluoropolymer has a surface energy up to 16 dyne/cm and a coefficient of friction from 0.4 to 1.0.

Transparency feed with amorphous fluoropolymer coated pressure roll

A fuser member useful for heat-fixing an electrographic toner to a substrate. The fuser member has a core and a layer overlying the core. That layer includes a cured fluorocarbon random copolymer having subunits with the general structures: ##STR1## where x is from 30 to 90 mole percent, y is from 10 to 70 mole percent, and z is from 0 to 34 mole percent. The layer incorporates particulate filler. The filler includes aluminum oxide and a material selected from the group consisting of alkali metal oxides, alkali metal hydroxides, and combinations thereof. The filler has a total concentration in the layer of from about 25 to 50 percent of the total volume of the layer. The aluminum oxide has a concentration of from 20 to 40 percent of the total volume of the layer.

Fuser members overcoated with fluorocarbon elastomer containing aluminum

Toner fusing members having a surface layer comprising a substrate coated with a fluorocarbon-silicone polymeric composition are obtained by concurrently curing a fluorocarbon copolymer, a nucleophilic fluorocarbon-curing agent and a heat-curable polyfunctional polymethylsiloxane polymer.

Fluorocarbon-silicone coated articles useful as toner fusing members

Coated fuser members such as a fuser roller, pressure roller, or fuser belt, and the method of making the coated fuser members are disclosed. The release coating comprises an outermost layer of fluoropolymer resin uniquely bonded to a fluoroelastomer layer by means of a fluoropolymer-containing polyamide-imide primer layer.

Toner fusing rolls having an oil barrier layer composed of a substrate coated with a fluorocarbon-silicone polymeric composition which is obtained by concurrently curing a fluorocarbon copolymer, a nucleophilic fluorocarbon-curing agent and a heat-curable polyfunctional poly(C.sub.1-6 alkyl)phenylsiloxane polymer.

Fusing roll having a fluorocarbon-silicone barrier layer

A fuser member useful for heat-fixing an electrographic toner to a substrate. The fuser member has a core and a layer overlying the core. That layer includes a cured fluorocarbon random copolymer having subunits with the general structures:

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Macedon, NY, United States of America

Gary F Roberts