# US 11,028,299 B2 · Anti-powdering and anti-static polymer film for digital printing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,028,299 B2 - Document ID: US11028299B2 - Status: Granted - Kind: B2 - Application number: 14/542,993 - Filed: 2014-11-17 - Published: 2015-05-21 - Granted: 2021-06-08 - Earliest claimed: 2013-11-19 - Assignees: Mitsubishi Polyester Film GmbH - Applicants: Mitsubishi Polyester Film, Inc - Inventors: Zhongzhe Yuan; Daniel Jacober - Web page: https://patentgrep.com/patent/US11028299B2 ## CPC - C08J 7/043: Improving the adhesiveness of the coatings per se, e.g. forming primers (adhesives in the form of films or foils characterised by the primer layers between the polymer carriers and the adhesives C09J7/50) - C08J 7/0427: {with only one layer of a composition containing a polymer binder (with more layers C08J7/042)} - C08J 7/044: Forming conductive coatings; Forming coatings having anti-static properties - C08J 7/046: Forming abrasion-resistant coatings; Forming surface-hardening coatings - C09D 129/10: Homopolymers or copolymers of unsaturated ethers (C09D135/08 takes precedence) - C09D 167/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds (C09D167/06 takes precedence) - C09K 3/16: Anti-static materials - C08K 3/013: Fillers, pigments or reinforcing additives - C08K 3/017: Antistatic agents - C08K 3/22: of metals - C08K 5/0025: {Crosslinking or vulcanising agents; including accelerators} - C08K 5/06: Ethers; Acetals; Ketals; Ortho-esters - C08K 5/34922: {Melamine; Derivatives thereof} - C08K 2003/222: {Magnesia, i.e. magnesium oxide} - C08K 2003/2237: {of titanium} - C08K 2003/2241: {Titanium dioxide} - C08K 2003/2244: {of zirconium} - C08K 2003/265: {Calcium, strontium or barium carbonate} - C08K 2003/3045: {Sulfates} - C09D 5/24: Electrically-conducting paints {(conductive materials H01B1/00)} - C09D 123/00: Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers - C09D 123/08: Copolymers of ethene (C09D123/16 takes precedence) - C09D 123/0846: {Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms} - C09D 123/0869: {Acids or derivatives thereof} - C09D 123/0876: {Neutralised polymers, i.e. ionomers} - C09D 133/12: Homopolymers or copolymers of methyl methacrylate - C09D 161/00: Coating compositions based on condensation polymers of aldehydes or ketones (with polyalcohols C09D159/00; with polynitriles C09D177/00); Coating compositions based on derivatives of such polymers - C09D 161/20: Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with amino phenols C09D161/04) - C09D 161/26: of aldehydes with heterocyclic compounds - C09D 161/28: with melamine - C09D 167/00: Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain (based on polyester-amides C09D177/12; based on polyester-imides C09D179/08); Coating compositions based on derivatives of such polymers - C09D 167/03: the dicarboxylic acids and dihydroxy compounds having the carboxyl - and the hydroxy groups directly linked to aromatic rings - C09D 171/00: Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain (based on polyacetals C09D159/00; based on epoxy resins C09D163/00; based on polythioether-ethers C09D181/02; based on polyethersulfones C09D181/06); Coating compositions based on derivatives of such polymers - C09J 123/00: Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers - C09J 123/08: Copolymers of ethene (C09J123/16 takes precedence) - C09J 123/0846: {Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms} - C09J 123/0869: {Acids or derivatives thereof} - C09J 123/0876: {Neutralised polymers, i.e. ionomers} - C09J 129/00: Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Adhesives based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Adhesives based on derivatives of such polymers - C09J 133/12: Homopolymers or copolymers of methyl methacrylate - C09J 161/00: Adhesives based on condensation polymers of aldehydes or ketones (with polyalcohols C09J159/00; with polynitriles C09J177/00); Adhesives based on derivatives of such polymers - C09J 161/20: Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with amino phenols C09J161/04) - C09J 161/26: of aldehydes with heterocyclic compounds - C09J 161/28: with melamine - C09J 167/00: Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain (based on polyester-amides C09J177/12; based on polyester-imides C09J179/08); Adhesives based on derivatives of such polymers - C09J 167/02: Polyesters derived from dicarboxylic acids and dihydroxy compounds (C09J167/06 takes precedence) - C09J 167/03: the dicarboxylic acids and dihydroxy compounds having the carboxyl - and the hydroxy groups directly linked to aromatic rings - C09J 171/00: Adhesives based on polyethers obtained by reactions forming an ether link in the main chain (based on polyacetals C09J159/00; based on epoxy resins C09J163/00; based on polythioether-ethers C09J181/02; based on polyethersulfones C09J181/06); Adhesives based on derivatives of such polymers - Y10T 428/249991: Synthetic resin or natural rubbers - Y10T 428/25: Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles - Y10T 428/256: Heavy metal or aluminum or compound thereof - Y10T 428/258: Alkali metal or alkaline earth metal or compound thereof - Y10T 428/265: 1 mil or less - Y10T 428/31786: Of polyester [e.g., alkyd, etc.] - Y10T 428/31797: Next to addition polymer from unsaturated monomers - C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A coated polymer film, such as a coated polyester film, is disclosed. In one embodiment, the coated film may be used as a substrate for digital printing. In one embodiment, the coating contains an anionic anti-static agent comprising a sulphonated copolyester resin. In an alternative embodiment, the coating contains an anti-static agent comprising an organometallic, such as an organo zirconate, in combination with metal oxide particles. The metal oxide particles may comprise nanoparticles. In one embodiment, the coating can further contain a print enhancing agent and an adhesion promoter. ## Claims ### Claim 1 A coated film having anti-static and/or anti-dusting properties comprising: a base film having a first side and a second side, the base film comprising a colored film containing a pigment in an amount from about 5% by weight to about 30% by weight; and a coating on at least the first side of the film, the coating comprising: an anti-static agent comprising an anionic copolyester; an adhesion promoter comprising an alkylene and acrylic acid copolymer present in the dried coating in an amount of from about 20% to about 55% by weight, a print enhancing agent comprising a vinyl ether present in the dried coating in an amount of from about 10% to about 35% by weight; and polymethylmethacrylate particles, wherein the polymethylmethacrylate particles are present in the coating in an amount from about 0.5% to about 3% by weight; and wherein the coated film is free of conductive materials other than the anionic copolyester. ### Claim 2 (depends on 1) A coated film as defined in claim 1, wherein the print enhancing agent comprises poly(vinyl methyl ether) or poly(vinyl ethyl ether). ### Claim 3 (depends on 1) A coated film as defined in claim 1, wherein the anti-static agent is present in the coating in an amount from about 20% to about 40% by weight, the coating further comprising: a crosslinking agent. ### Claim 4 (depends on 3) A coated film as defined in claim 3, wherein the print enhancing agent comprises a polyvinyl methyl ether, the print enhancing agent being present in the coating in an amount from about 15% to about 30% by weight; and wherein the adhesion promoter comprises an ethylene acrylic acid copolymer, the adhesion promoter being present in the coating in an amount from about 30% to about 50% by weight. ### Claim 5 (depends on 3) A coated film as defined in claim 3, wherein the crosslinking agent comprises a melamine, the crosslinking agent being present in the coating in an amount from about 1% to about 5% by weight. ### Claim 6 (depends on 1) A coated film as defined in claim 1, wherein the anti-static agent comprises a water-soluble copolyester comprising 1,3-benzenedicarboxylic acid, 5-sulfo-, 1,3-dimethyl ester sodium salt, polymer and dimethyl 1,4-benzenedicarboxylate, 1,2-ethanediol and 2,2′-oxybis(ethanol). ### Claim 7 (depends on 1) A coated film as defined in claim 1, wherein the coating is also on the second side of the base film. ### Claim 8 (depends on 1) A coated film as defined in claim 1, wherein the pigment comprises a white pigment and wherein the white pigment comprises titanium dioxide, barium sulfate, magnesium oxide, calcium carbonate, or mixtures thereof, the white pigment having an average particle size of from about 0.05 microns to about 0.5 microns. ### Claim 9 (depends on 1) A coated film as defined in claim 1, wherein the base film comprises a polyester film, that has been biaxially stretched. ### Claim 10 (depends on 1) A coated film as defined in claim 1, wherein the coating has a thickness of from about 130 nm to about 200 nm. ### Claim 11 (depends on 1) A coated film as defined in claim 1, wherein the film further includes printed matter applied to the coating on the first side of the film, the printed matter comprising a toner. ### Claim 12 (depends on 11) A coated film as defined in claim 11, wherein the toner comprises digital printer toner. ### Claim 13 (depends on 1) A coated film as defined in claim 1, wherein the anti-static agent comprises a sulphonated copolyester. ### Claim 14 (depends on 13) A coated film as defined in claim 13, wherein the anti-static agent is present in the coating in an amount from about 10% by weight to about 60% by weight. ### Claim 15 (depends on 1) A coated film as defined in claim 1, wherein the base film is a colored and matte film. ### Claim 16 (depends on 1) A coated film as defined in claim 1, wherein the alkylene and acrylic acid copolymer contains the acrylic acid monomer in an amount from about 8% to about 18% by weight. ### Claim 17 A coated film having anti-static and/or anti-dusting properties comprising: a base film having a first side and a second side, the base film comprising a colored film containing a pigment in an amount from about 5% by weight to about 30% by weight; and a coating on at least the first side of the film, the coating comprising: an anti-static agent comprising an anionic copolyester; an adhesion promoter comprising an alkylene and acrylic acid copolymer present in the dried coating in an amount of from about 20% to about 55% by weight; a print enhancing agent comprising a vinyl ether present in the coating in an amount from about 10% to about 35% by weight; a crosslinking agent in an amount of about 1% to about 5% by weight; and polymethylmethacrylate particles, wherein the polymethylmethacrylate particles are present in the coating in an amount from about 0.5% to about 3% by weight; and wherein the coated film is free of conductive materials other than the anionic copolyester. ### Claim 18 (depends on 17) A coated film as defined in claim 17, wherein the anti-static agent is present in the coating in an amount from about 20% to about 40% by weight.