# US 8,541,104 B2 · Intermediate transfer member > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,541,104 B2 - Document ID: US8541104B2 - Status: Granted - Kind: B2 - Application number: 12/886,710 - Filed: 2010-09-21 - Published: 2012-03-22 - Granted: 2013-09-24 - Earliest claimed: 2010-09-21 - Assignees: Xerox Corporation - Applicants: Jin Wu; Jonathan H. Herko; Lanhui Zhang; Lin Ma - Inventors: Jin Wu; Jonathan H. Herko; Lanhui Zhang; Lin Ma - Web page: https://patentgrep.com/patent/US8541104B2 ## CPC - B32B 27/281: {comprising polyimides} - B32B 27/08: of synthetic resin - B32B 27/20: using fillers, pigments, thixotroping agents - B32B 27/285: {comprising polyethers} - B32B 27/322: {comprising halogenated polyolefins, e.g. PTFE} - B32B 27/327: {comprising polyolefins obtained by a metallocene or single-site catalyst} - G03G 15/162: {details of the the intermediate support, e.g. chemical composition} - B32B 2270/00: Resin or rubber layer containing a blend of at least two different polymers - B32B 2559/00: Photographic equipment or accessories - Y10T 428/269: including synthetic resin or polymer layer or component - Y10T 428/3154: Of fluorinated addition polymer from unsaturated monomers - Y10T 428/31544: Addition polymer is perhalogenated - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract There is described an intermediate transfer member including a substrate layer comprising a polyimide and a surface layer. The surface layer includes a functionalized polyfluoropolyether and functionalized polybutadiene in a weight ratio of functionalized polyfluoropolyether/functionalized polybutadiene of from about 20/80 to about 80/20 and conductive particles. The method of manufacturing the intermediate transfer member is also described. ## Claims ### Claim 1 A intermediate transfer member comprising: a substrate layer comprising polyimide; and a surface layer comprising a polymer consisting of functionalized polyfluoropolyether and functionalized polybutadiene wherein the functionalized polybutadiene is selected from the group consisting of an isocyanate polybutadiene, a hydroxyl polybutadiene, a carboxyl acid polybutadiene, an ester polybutadiene, or an epoxy polybutadiene and wherein said polybutadiene is selected from the group consisting of poly(1,3-butadiene), poly(1,4-butadiene), hydrogenated poly(1,3-butadiene) and hydrogenated poly(1,4-butadiene), in a weight ratio of functionalized polyfluoropolyether/functionalized polybutadiene of from about 20/80 to about 80/20, and conductive particles. ### Claim 2 (depends on 1) The intermediate transfer member of claim 1 wherein the functionalized polyfluoropolyether is represented by: R1—(—CF(CF3)—CF2—O—)n—R2 R1—(—CF2—CF2—CF2—O—)n—R2 R1—(—CF2—CF2O—)n—(—CF2—O—)m—R2 R1—(—CF2—CF(CF3)—O—)n—(—CF2—O—)m—R2 wherein n and m each represent the number of repeating groups, n is from about 3 to about 120, m is from about 5 to about 120, n+m is from about 40 to about 180, n/m is from about 0.5 to about 2, R1 and R2 are independently represented by A1-CF2O— and —CF2-A2, respectively, A1, A2 are independently one of -Ak-OH—CH2(OCH2CH2)pOH—CH2OCH2CH(OH)CH2OH —COORH-Ak-Si(ORH)3-Ak-OP(O)(OH)2 wherein Ak is a bond or an alkylene group with from about 1 to about 10 carbon atoms, RH is H, or an alkyl group with from about 1 to about 10 carbon atoms; and p is from 1 to about 20. ### Claim 3 (depends on 1) The intermediate transfer member of claim 1 wherein the functionalized polyfluoropolyether is selected from the group consisting of a hydroxyl terminated polyfluoropolyether, a carboxyl acid terminated polyfluoropolyether, an ester terminated polyfluoropolyether, a silane terminated polyfluoropolyether, and a phosphoric acid terminated polyfluoropolyether. ### Claim 4 (depends on 1) The intermediate transfer member of claim 1 wherein the surface layer has a hexadecane contact angle of greater than about 50°. ### Claim 5 (depends on 1) The intermediate transfer member of claim 1 wherein the conductive particles are present in an amount of from about 1 to about 60 weight percent based on total weight of the surface layer. ### Claim 6 (depends on 1) The intermediate transfer member of claim 1 wherein the conductive particles are selected from the group consisting of carbon black, tin oxide, antimony dioxide, antimony-doped tin oxide, titanium dioxide, indium oxide, zinc oxide, indium oxide and indium-doped tin trioxide, polyaniline and polythiophene. ### Claim 7 (depends on 1) The intermediate transfer member of claim 1 wherein the surface layer has a thickness of from about 1 micron to about 400 microns. ### Claim 8 A method of making an intermediate transfer member comprising: a) adding and reacting a mixture consisting of functionalized polyfluoropolyether, functionalized polybutadiene wherein the functionalized polybutadiene is selected from the group consisting of an isocyanate polybutadiene, a hydroxyl polybutadiene, a carboxyl acid polybutadiene, an ester polybutadiene, or an epoxy polybutadiene and wherein said polybutadiene is selected from the group consisting of poly(1,3-butadiene), poly(1,4-butadiene), hydrogenated poly(1,3-butadiene) and hydrogenated poly(1,4-butadiene), a solvent, conductive particles and a catalyst to provide a coating composition of functionalized polyfluoropolyether and functionalized polybutadiene in a weight ratio of from about 20 to 80 to about 80 to 20; b) coating the coating composition on a polyimide substrate; and c) curing the coating composition to form a surface layer. ### Claim 9 (depends on 8) The method of claim 8 wherein the catalyst is selected from the group consisting of an organotin compound, an acid catalyst, and a base catalyst. ### Claim 10 (depends on 8) The method of claim 8 wherein the catalyst is present in an amount from about 0.01 weight percent to about 5.0 weight percent of the coating composition. ### Claim 11 (depends on 8) The method of claim 8 wherein the solvent is selected from the group consisting of N,N-dimethylformamide, N-methylpyrrolidone, tetrahydrofuran, toluene, hexane, cyclohexane, heptane, N,N′-dimethylacetamide, methylene chloride and mixtures thereof. ### Claim 12 (depends on 8) The method of claim 8 wherein the solvent is present in an amount from about 10 weight percent to about 90 weight percent of the coating composition. ### Claim 13 (depends on 8) The method of claim 8 wherein the functionalized polyfluoropolyether is represented by: R1—(—CF(CF3)—CF2—O—)n—R2 R1—(—CF2—CF2—CF2—O—)n—R2 R1—(—CF2—CF2O—)n—(—CF2—O—)m—R2 R1—(—CF2—CF(CF3)—O—)n—(—CF2—O—)m—R2 wherein n and m each represent the number of repeating groups, n is from about 3 to about 120, m is from about 5 to about 120, n+m is from about 40 to about 180, n/m is from about 0.5 to about 2, R1 and R2 are independently represented by A1-CF2O— and —CF2-A2, respectively, A1, A2 are independently one of -Ak-OH—CH2(OCH2CH2)pOH—CH2OCH2CH(OH)CH2OH —COORH-Ak-Si(ORH)3-Ak-OP(O)(OH)2 wherein Ak is a bond or an alkylene group with from about 1 to about 10 carbon atoms, RH is H, or an alkyl group with from about 1 to about 10 carbon atoms, and p is from 1 to about 20. ### Claim 14 (depends on 8) The method of claim 8 wherein the functionalized polyfluoropolyether is selected from the group consisting of hydroxyl terminated polyfluoropolyether, a carboxyl acid terminated polyfluoropolyether, an ester terminated polyfluoropolyether, a silane terminated polyfluoropolyether, and a phosphoric acid terminated polyfluoropolyether. ### Claim 15 (depends on 8) The method of claim 8 wherein the surface layer has a hexadecane contact angle greater than about 50°. ### Claim 16 A intermediate transfer member comprising: a substrate layer comprising polyimide; and a surface layer comprising a polymer consisting of functionalized polyfluoropolyether and functionalized polybutadiene wherein the functionalized polybutadiene is selected from the group consisting of an isocyanate polybutadiene, a hydroxyl polybutadiene, a carboxyl acid polybutadiene, an ester polybutadiene, or an epoxy polybutadiene and wherein said polybutadiene is selected from the group consisting of poly(1,3-butadiene), poly(1,4-butadiene), hydrogenated poly(1,3-butadiene) and hydrogenated poly(1,4-butadiene), in a weight ratio of functionalized polyfluoropolyether/functionalized polybutadiene of from about 20/80 to about 80/20, and carbon black wherein the surface layer comprises a water contact angle of greater than about 110° and a hexadecane contact angle of greater than about 50°. ### Claim 17 (depends on 16) The intermediate transfer member of claim 16 wherein the carbon black is present in an amount of from about 1 to about 60 weight percent based on total weight of the surface layer.