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US 3,940,518 AGranted
Bake technique for manufacturing tetrafluoroethylene coated rolls
AssigneeXerox Corporation
InventorsEdward F. Bowler, Jr., Joseph M. Stupin, Jr., Edward G. Williams
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Abstract
A method for preparing polymer coated rolls for use in a xerographic reproducing apparatus is given whereby coatings of tetrafluoroethylene primer and enamel are applied, dried at low temperatures and baked at temperatures below the fusion temperature followed by a final heating step to fuse the tetrafluoroethylene enamel coating.
Claims10
A method for manufacturing a polymer coated roll for use in a xerographic reproducing apparatus comprising:
- applying to the surface of the roll a tetrafluoroethylene primer;
- drying the primer;
- heating the primer-coated roll until the primer is baked;
- applying to the surface of said roll a liquid coating consisting essentially of tetrafluoroethylene enamel;
- drying said coating;
- baking the coated roll at a temperature below the fusion temperature of tetrafluoroethylene resin;
- applying at least one more additional liquid coating of tetrafluoroethylene enamel, drying, and baking of said coating after each application at a temperature below the fusion temperature of tetrafluoroethylene resin until the desired thickness of tetrafluoroethylene enamel on the surface is attained;
- and
- heating the coated roll at a temperature sufficient to cause fusion of the tetrafluoroethylene coating.
6 more elements
Dependencies are inferred from the claim text.