Long life fuser roll
AssigneeXerox Corporation
InventorsClifford O. Eddy, George J. Safford, Edward F. Bowler, Jr.
Life of this patent
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Abstract
A method of depositing and affixing a layer of a copolymer of perfluoroalkyl perfluorovinyl ether and tetrafluoroethylene upon a metal surface and the article prepared thereby, is disclosed. A flame sprayed metal surface having an optional fluoropolymer primer thereon is powder coated with the copolymer of perfluoroalkyl perfluorovinyl ether and tetrafluoroethylene and the powder is fused thereon. An improved long life fuser member for use in a fusing apparatus for fixing toner images to copy sheets by the application of heat and pressure is described.
Claims41
A method for manufacturing a laminated article having a support member and a surface layer of a resin copolymer of tetrafluoroethylene and perfluoroalkyl perfluorovinyl ether comprising:
- (a) providing a support member;
- (b) applying a porous metal plate on the support member by a flame spraying process;
- (c) applying fluoropolymer primer to the porous metal plate;
- (d) drying the fluoropolymer primer;
- (e) applying powder resin copolymer of tetrafluoroethylene and perfluoroalkyl perfluorovinyl ether to the dried primer-coated metal plate;
- and
- (f) heating the powder resin copolymer at a temperature sufficient to fuse the powder resin copolymer until fusion is complete.
A method for manufacturing a laminated fuser member having a metal substrate and a surface layer of a resin copolymer of tetrafluoroethylene and perfluoroalkyl perfluorovinyl ether comprising:
- (a) providing a metal substrate as a support member;
- (b) applying a porous, stainless steel plate on the metal substrate by a flame spraying process using a low oxidizing flame and an inert gas as an atomizing gas;
- (c) applying acid fluoropolymer primer to the flame sprayed, porous stainless steel plate;
- (d) drying the acid fluoropolymer primer until the primer is dried upon the flame sprayed, porous stainless steel plate;
- (e) applying sufficient powder resin copolymer of tetrafluoroethylene and perfluoroalkyl perfluorovinyl ether to the dried primer-coated stainless steel plate so that the fused resin copolymer has a thickness of about 0.006 mm to about 0.032 mm, said powder resin copolymer being applied by an electrostatic powder coating process;
- and
- (f) heating the powder resin copolymer at a temperature of about 300.degree. C. to about 425.degree. C. to fuse the powder resin copolymer.
A laminated article comprising:
- a support member having a porous flame sprayed metal surface layer;
- a fluoropolymer primer dried upon the flame sprayed metal surface;
- and
- an outer layer over said primer, said outer layer comprising a copolymer resin of perfluoroalkyl perfluorovinyl ether with tetrafluoroethylene, said ether having the formula C.sub.n F.sub.2n+1 --O--CF.dbd.CF.sub.2, said outer layer being placed upon the dried primer in the form of a powder coating and fused thereon.
A method for manufacturing a laminated article having a support member and a surface layer of a resin copolymer of tetrafluoroethylene and perfluoroalkyl perfluorovinyl ether comprising:
- (a) providing a support member;
- (b) applying a porous metal plate on the support member by a flame spraying process;
- (c) applying powder resin copolymer of tetrafluoroethylene and perfluoroalkyl perfluorovinyl ether to the porous metal plate;
- and
- (d) heating the powder resin copolymer at a temperature sufficient to fuse the powder resin copolymer until fusion is complete.
A laminated article comprising:
- a support member having a porous flame sprayed metal surface layer;
- an outer layer over said porous flame sprayed metal surface layer, said outer layer comprising a copolymer resin of perfluoroalkyl perfluorovinyl ether with tetrafluoroethylene, said ether having the formula:
- C.sub.n F.sub.2n+1 --O--CF.dbd.CF.sub.2, said outer layer being placed upon the porous flame sprayed metal surface layer in the form of a powder coating and fused thereon.
Dependencies are inferred from the claim text.