# US 8,541,072 B2 · UV cured heterogeneous intermediate transfer belts (ITB) > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,541,072 B2 - Document ID: US8541072B2 - Status: Granted - Kind: B2 - Application number: 12/624,589 - Filed: 2009-11-24 - Published: 2011-05-26 - Granted: 2013-09-24 - Earliest claimed: 2009-11-24 - Assignees: Xerox Corporation - Applicants: Geoffrey M. T. Foley; Jin Wu; Satchidanand Mishra - Inventors: Geoffrey M. T. Foley; Jin Wu; Satchidanand Mishra - Web page: https://patentgrep.com/patent/US8541072B2 ## CPC - C07F 9/307: {Acids containing the structure -C(=X)-P(=X)(R)(XH) or NC-P(=X)(R)(XH), (X = O, S, Se)} - B41M 5/38257: {characterised by the use of an intermediate receptor} - B41M 5/52: Macromolecular coatings - B41M 5/5218: {characterised by inorganic additives, e.g. pigments, clays} - C07F 9/5337: {Phosphine oxides or thioxides containing the structure -C(=X)-P(=X) or NC-P(=X) (X = O, S, Se)} - C08F 2/44: Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers - C08F 2/48: by ultraviolet or visible light - G03G 15/162: {details of the the intermediate support, e.g. chemical composition} - C08F 222/103: {of trialcohols, e.g. trimethylolpropane tri(meth)acrylate} - C07F: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM (metal-containing porphyrins C07D487/22) - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY ## Abstract Exemplary embodiments provide an intermediate transfer member that can include a plurality of carbon nanotubes dispersed in an ultraviolet (UV) curable polymer in an amount to allow a bulk curing of the UV curable polymer and to provide the cured polymer an electrical resistivity and/or a mechanical modulus useful for electrostatographic devices and processes. ## Claims ### Claim 1 An intermediate transfer member comprising: an ultraviolet (UV) curable polymer, wherein the UV curable polymer comprises a urethane acrylate; a photoinitiator being capable of initiating a curing of the UV curable polymer; and a plurality of carbon nanotubes dispersed in the UV curable polymer, wherein the plurality of carbon nanotubes is about 3% or less by weight of the UV curable polymer after the UV curable polymer containing the dispersed plurality of carbon nanotubes is cured to produce a cured polymer, and wherein the cured polymer has a surface resistivity ranging from about 108 ohms/sq to about 1013 ohms/sq. ### Claim 2 (depends on 1) The member of claim 1, wherein the cured polymer has a thickness ranging from about 30 microns to about 500 microns. ### Claim 3 (depends on 1) The member of claim 1, wherein the plurality of carbon nanotubes is present in an amount of about 1% or less by weight of the total cured polymer. ### Claim 4 (depends on 1) The member of claim 1, wherein the plurality of carbon nanotubes comprises multi-walled carbon nanotubes, single-walled carbon nanotubes or combinations thereof. ### Claim 5 (depends on 1) The member of claim 1, wherein the urethane acrylate is selected from the group consisting of an aliphatic urethane acrylate, an aromatic urethane acrylate and a combination thereof. ### Claim 6 (depends on 1) The member of claim 1, wherein the urethane acrylate has a molecular weight ranging from about 300 to about 5,000. ### Claim 7 (depends on 1) The member of claim 1, wherein the UV curable polymer further comprises a monomeric acrylate or vinyl selected from the group consisting of trimethylolpropane triacrylate, hexanediol diacrylate, tripropyleneglycol diacrylate, dipropyleneglycol diacrylate, triethyleneglycol divinyl ether, vinyl caprolactam, n-vinyl formamide and a combination thereof. ### Claim 8 (depends on 1) The member of claim 1, wherein the photoinitiator comprises one or more of a first photoinitiator for a surface curing of the UV curable polymer, a second photoinitiator for a bulk curing of the UV curable polymer and a combination thereof. ### Claim 9 (depends on 1) The member of claim 1, wherein the UV curable polymer comprises urethane acrylate and wherein the photoinitiator comprises acyl phosphines, α-hydroxyketones, benzyl ketals, α-aminoketones, or mixtures thereof. ### Claim 10 An intermediate transfer member comprising: an ultraviolet (UV) curable polymer, wherein the UV curable polymer comprises a urethane acrylate; a photoinitiator being capable of initiating a curing of the UV curable polymer; a plurality of carbon nanotubes dispersed in the UV curable polymer; and a dispersant disposed to exfoliate and de-bundle the plurality of carbon nanotubes; wherein the plurality of carbon nanotubes is about 3% or less by weight of the UV curable polymer after the UV curable polymer containing the dispersed plurality of carbon nanotubes is cured to produce a cured polymer, wherein the dispersant is present in an amount ranging from about 5% to about 30% by weight of the plurality of carbon nanotubes, and wherein the cured polymer has a surface resistivity ranging from about 108 ohms/sq to about 1013 ohms/sq. ### Claim 11 (depends on 10) The member of claim 10, wherein the dispersant has a formula of and wherein X is a halide; and n ranges from about 1 to about 225. ### Claim 12 (depends on 10) The member of claim 10, wherein the dispersant has a formula of wherein n ranges from about 1 to about 225. ### Claim 13 (depends on 1) The member of claim 1, wherein the cured polymer has a Young's modulus ranging from about 500 to about 3,000 MPa. ### Claim 14 (depends on 1) The member of claim 1 further comprising an outer release layer disposed over the cured polymer. ### Claim 15 (depends on 1) The member of claim 1 further comprising an outer release layer disposed over a conformable layer that is disposed over the cured polymer.