EP0492402A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Material package for fabrication of fusing components
Assignee: Xerox Corp
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Filing: 1991-12-18
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Granted: —
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Expires: 2011-12-18
Abstract
Abstract A fuser member comprising a supporting substrate having an outer layer of a volume grafted elastomer which is a substantially uniform integral interpenetrating network of a hybrid composition of a fluoroelastomer and a polyorganosiloxane, said volume graft having been formed by dehydrofluorination of said fluoroelastomer by a nucleophilic dehydrofluorinating agent, followed by addition polymerization by the addition of an alkene or alkyne functionally terminated polyorganosiloxane and a polymerization initiator.
Inventors
- 👤 Santokh S. Badesha
- 👤 Michael Ferguson
- 👤 Louis D. Fratangelo
- 👤 George J. Heeks
- 👤 Arnold W. Henry
- 👤 David H. Pan
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 09:03
CPC Classifications
C; C08; C08G; C08G81/00; C08G81/02; C08G81/024; C09; C09D; C09D187/00; C09D187/005; G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2025; G03G15/2053; G03G15/2057; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
69 words
A fuser member comprising a supporting substrate having an outer layer of a volume grafted elastomer which is a substantially uniform integral interpenetrating network of a hybrid composition of a fluoroelastomer and a polyorganosiloxane, said volume graft having been formed by dehydrofluorination of said fluoroelastomer by a nucleophilic dehydrofluorinating agent, followed by addition polymerization by the addition of an alkene or alkyne functionally terminated polyorganosiloxane and a polymerization initiator.
Claim 2
Dependent Claim
21 words
The fuser member of claim 1 wherein said fluoroelastomer is selected from a group consisting of poly(vinylidene fluoride-hexafluoropropylene) and poly(vinylidene fluoride-hexafluoropropylenetetrafluoroethylene).
Claim 3
Dependent Claim
85 words
The fuser member of claim 1 wherein said polyorganosiloxane has the formula: where R is an alkyl, alkenyl or aryl having less than 19 carbon atoms or an aryl group substituted with an amino, hydroxy, mercapto or alkyl or alkenyl group having less than 19 carbon atoms, the functional group A is an alkene or alkyne having 2 to 8 carbon atoms or an alkene or alkyne substituted with an alkyl or aryl having less than 19 carbon atoms and n is 2 to 350.
Claim 4
Dependent Claim
52 words
The fuser member of claim 1 wherein said dehydrofluorinating agent is selected from the group consisting of primary, secondary and tertiary aliphatic and aromatic amines where the aliphatic and aromatic groups have from 2 to 15 carbon atoms and aliphatic and aromatic diamines and triamines having from 2 t 15 carbon atoms.
Claim 5
Dependent Claim
30 words
The fuser member of claim 4 wherein said amine dehydrofluorinating agent is selected from the group consisting of N-(2 aminoethyl-3-aminopropyl)-trimethoxy silane, 3-(N-styrylmethyl-2-aminoethylamino) propyltrimethoxy silane hydrochloride and (aminoethylamino methyl) phenethyltrimethoxy silane.
Claim 6
Dependent Claim
13 words
The fuser member of claim 1 wherein the polymerization initiator is a peroxide.
Claim 7
Dependent Claim
20 words
The fuser member of claim 1 wherein the initiator is selected from the group consisting of benzoyl peroxide and azo-bis-isobutyronitrile.
Claim 8
Dependent Claim
20 words
The fuser member of claim 1 wherein said outer layer is from about 12.5 to about 125 micro meter thick.
Claim 9
Dependent Claim
14 words
The fuser member of claim 1 wherein said supporting substrate is a cylindrical sleeve.
Claim 10
Dependent Claim
11 words
The fuser member of claim 9 including an intermediate elastomer layer.
Claim 11
Dependent Claim
20 words
The fuser member of claim 8 wherein said member is a pressure roll, fuser roll or release agent donor roll.
Claim 12
Independent Claim
36 words
The method of fusing a thermoplastic resin toner image to a substrate comprising forming a film of a polymeric release agent on the surface of a heated fuser member as defined in claims 1 to 11.
Claim 13
Dependent Claim
15 words
The method of claim 12 wherein said release agent is a nonfunctional polymeric release agent.
Claim 14
Dependent Claim
15 words
The method of claim 12 wherein said release agent is a functional polymeric release agent.
Claim 15
Independent Claim
122 words
The method of making a fuser member comprising; forming a solvent solution of a fluoroelastomer compound, dehydrofluorinating agent, a polymerization initiator and an alkene or alkyne functionally terminated polyorganosiloxane, adding a nucleophilic curing agent for said fluoroelastomer to said solution, applying said solution to a fuser member support substrate, curing said fluoroelastomer compound and said polyorganosiloxane to form an outer layer on said substrate of a volume grafted elastomer which is a substantially uniform integral interpenetrating network of a hybrid composition of said fluoroelastomer and said polyorganosiloxane, said volume graft having been formed by dehydrofluorination of said fluoroelastomer with a nucleophilic dehydrofluorinating agent, followed by addition polymerization by the addition of an alkene or alkyne functionally terminated polyorganosiloxane and a polymerization initiator.
Claim 16
Dependent Claim
19 words
The method of claim 15 wherein said fluoroelastomer is selected from the group consisting of poly(vinylidenefluoride-hexafluoropropylene) and poly(vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene).
Claim 17
Dependent Claim
84 words
The method of claim 15, wherein said polyorganosiloxane has the formula: where R is an alkyl, alkenyl or aryl having less than 19 carbon atoms or an aryl group substituted with an amino, hydroxy, mercapto or alkyl or alkenyl group having less than 19 carbon atoms, the functional group A is an alkene or alkyne having 2 to 8 carbon atoms or an alkene or alkyne substituted with an alkyl or aryl having less than 19 carbon atoms and n is 2 to 350.
Claim 18
Dependent Claim
51 words
The method of claim 15 wherein said dehydrofluorinating agent is selected from the group consisting of primary, secondary and tertiary aliphatic and aromatic amines where the aliphatic and aromatic groups have from 2 to 15 carbon atoms and aliphatic and aromatic diamines and triamines having from 2 to 15 carbon atoms.
Claim 19
Dependent Claim
29 words
The method of claim 18 wherein said amine dehydrofluorinating agent is selected from the group consisting of N-(2 aminoethyl-3-aminopropyl)-trimethoxy silane, 3-(N-styrylmethyl-2-aminoethylamino) propyltrimethoxy silane hydrochloride and (aminoethylamino methyl) phenethyltrimethoxy silane.
Claim 20
Dependent Claim
12 words
The method of claim 15 wherein the polymerization initiator is a peroxide.
Claim 21
Dependent Claim
20 words
The fuser member of claim 15 wherein the initiator is selected from the group consisting of benzoyl peroxide and azo-bis-isobutyronitrile.
Claim 22
Dependent Claim
18 words
The method of claim 15 wherein said outer layer is from about 12.5 to about 125 micrometers thick.
Claim 23
Dependent Claim
13 words
The method of claim 15 wherein said supporting substrate is a cylindrical sleeve.
Claim 24
Dependent Claim
14 words
The method of claim 23 including forming an intermediate elastomer layer on said substrate.
Claim 25
Dependent Claim
17 words
The claim 17 wherein said member is a pressure roll, fuser roll or release agent donor roll.
References Cited (Backward Citations)
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