Patent US5219612A successfully refreshed from Google Patents.
US5219612A
Expired / Lapsed
US
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Silane adhesive system for fuser member
Assignee: Xerox Corp
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Filing: 1991-05-03
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Granted: 1993-06-15
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Expires: 2011-05-03
Abstract
Abstract A method of using multilayered member for fusing thermoplastic resin toner images to a substrate in a fuser system of the type wherein a polymeric release agent having functional groups is applied to the surface of the fuser member. The multilayered fuser member has in sequential order a base support member, an adhesive layer comprising a copolymer of vinylidene fluoride and hexafluoropropylene and at least 20% by weight of the adhesive layer of a coupling agent comprising at least one organo functional silane and an activator, a tie coat layer of active ingredients comprising a copolymer of vinylidene fluoride and hexafluoropropylene and an outer elastomeric fusing surface comprising a copolymer of vinylidene fluoride and hexafluoropropylene and containing a metal oxide present in an amount sufficient to interact with a polymeric release agent having functional groups to provide an interfacial barrier layer between said fusing surface and toner.
Inventors
- 👤 George J. Bingham
- 👤 Patrick J. Finn
- 👤 George J. Heeks
- 👤 Arnold W. Henry
- 👤 Donald A. Seanor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:21
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; G03G15/2057
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
233 words
The method of fusing thermoplastic resin toner images to a substrate comprising forming a film of a polymeric release agent having functional groups on the surface of a heated multilayered fuser member, said fuser member comprising in sequential order a base support member, an adhesive layer comprising a copolymer of vinylidene fluoride and hexafluoropropylene and at least 20% by weight of the adhesive layer of a coupling agent comprising at least one organo functional silane represented by the formula: [RO(O).sub.p --(RO).sub.m ].sub.3 Si--(R').sub.n --X, where R can be an alkyl group having 1 to 4 carbon atoms, R' can be an alkyl group having 1 to 7 carbon atoms, p, m and n can be 0 or 1, and X can be any of chlorine, amino, vinyl, methyl, glycidoxy, epoxycyclohexyl, mercapto, benzyl, bis(2-hydroxlethyl)amino, ureido, carbonate, diethylene triamine, N-beta(aminoethyl)gamma-amino, or 3(N-styrylmethyl-2-aminoethyl)amino, and an activator; and, a tie coat layer of active ingredients comprising a copolymer of vinylidene fluoride and hexafluoropropylene and an outer elastomeric fusing surface comprising a copolymer of vinylidene fluoride and hexafluoropropylene and containing a metal oxide present in an amount sufficient to interact with the polymeric release agent having functional groups to provide an interfacial barrier layer between said fusing surface and toner, contacting the toner images on said substrate with the heated elastomeric surface for a period of time sufficient to soften the toner and allowing the toner to cool.
Claim 2
Independent Claim
233 words
The method of fusing thermoplastic resin toner images to a substrate comprising forming a film of a polymeric release agent having functional groups on the surface of a heated multilayered fuser member, said fuser member comprising in sequential order a base support member, an adhesive layer comprising a copolymer of vinylidene fluoride and hexafluoropropylene and at least 20% by weight of the adhesive layer of a coupling agent comprising at least one organo functional silane represented by the formula: [RO(O).sub.p --(RO).sub.m ].sub.3 Si--(R').sub.n --X, where R can be an alkyl group having 1 to 4 carbon atoms, R' can be an alkyl group having 1 to 7 carbon atoms, p, m and n can be 0 or 1, and X can be any of chlorine, amino, vinyl, methyl, glycidoxy, epoxycyclohexyl, mercapto, benzyl, bis(2-hydroxlethyl)amino, ureido, carbonate, diethylene triamine, N-beta(aminoethyl)gamma-amino, or 3(N-styrylmethyl-2-aminoethyl)amino, and an activator; and, a tie coat layer of active ingredients comprising a copolymer of vinylidene fluoride and hexafluoropropylene and an outer elastomeric fusing surface comprising a copolymer of vinylidene fluoride and hexafluoropropylene and containing a metal oxide present in an amount sufficient to interact with the polymeric release agent having functional groups to provide an interfacial barrier layer between said fusing surface and toner, contacting the toner images on said substrate with the heated elastomeric surface for a period of time sufficient to soften the toner and allowing the toner to cool.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein said base support member has an aluminum surface.
Claim 4
Dependent Claim
20 words
The method of claim 2 wherein said aluminum surface is a flame-sprayed layer on a cylindrical steel roll support member.
Claim 5
Dependent Claim
23 words
The method of claim 2 wherein said at least one organo-functional silane is a mixture of triethoxy amino silane and triethoxy vinyl silane.
Claim 6
Dependent Claim
42 words
The method of claim 3 wherein the organosilane is a mixture of about 4 parts by weight of ethenyl triethoxy silane to 1 part by weight of 3-(triethoxysilyl)-1-propanamine which is present in said composition in an amount less than 91% by weight.
Claim 7
Dependent Claim
13 words
The method of claim 1 wherein said activator is benzyl triphenyl phosphonium chloride.
Claim 8
Dependent Claim
32 words
The method of claim 1 wherein said copolymer in each of the adhesive, tie coat layers and fusing surface is about 77 mole percent vinylidene fluoride and about 23 mole percent hexafluoropropylene.
Claim 9
Dependent Claim
29 words
The method of claim 1 wherein said metal oxide is cupric oxide present in an amount of from about 5 to 30 percent by weight of the fusing surface.
Claim 10
Dependent Claim
45 words
The method of claim 1 wherein said adhesive layer is from about 0.2 to about 0.8 mils thick and said tie coat is from about 0.4 to about 0.8 mils thick and said fusing surface is from about 4.0 mils to about 11.0 mils thick.
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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) | 1996-06-14 | 1996-12-14 | 1997-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-14 | 2000-12-14 | 2001-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-14 | 2004-12-14 | 2005-06-15 | $7700.00 | Window Closed / Lapsed |