# US 12,110,402 B2 · Aqueous inkjet ink compositions made from high viscosity latexes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,110,402 B2 - Document ID: US12110402B2 - Status: Granted - Kind: B2 - Application number: 17/230,178 - Filed: 2021-04-14 - Published: 2022-05-26 - Granted: 2024-10-08 - Earliest claimed: 2020-11-24 - Assignees: Xerox Corporation - Applicants: Xerox Corporation - Inventors: Sepehr Tehrani; Syed Mohsin Ali; Carlos Dondon; Biby Esther Abraham; C. Geoffrey Allen; Mihaela Maria Birau; Jennifer L. Belelie - Web page: https://patentgrep.com/patent/US12110402B2 ## CPC - C09D 11/30: Inkjet printing inks - B41M 5/0023: {Digital printing methods characterised by the inks used (inks per se C09D11/00)} - C09D 11/02: Printing inks (C09D11/30 takes precedence) - C09D 11/107: from unsaturated acids or derivatives thereof - B41J 2/01: Ink jet - 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) - 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) - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS ## Abstract Aqueous inkjet ink compositions are provided. In an embodiment, such an aqueous inkjet ink composition comprises water; resin particles; a colorant; and optionally, a wax. The resin particles comprise a polymerization product of reactants comprising a monomer, an acidic monomer, a hydrophilic monomer, a difunctional monomer, and a reactive surfactant. The acidic monomer, the hydrophilic monomer, and the difunctional monomer may be present at an amount in a range of from about 10 weight % to about 30 weight % in the resin particles. Methods of forming and using the aqueous inkjet ink compositions are also provided. ## Claims ### Claim 1 An aqueous inkjet ink composition comprising water; resin particles; a colorant; and optionally, a wax, wherein the resin particles comprise a polymerization product of reactants comprising a monomer, an acidic monomer, a hydrophilic monomer, a difunctional monomer, and a reactive surfactant, wherein the acidic monomer, the hydrophilic monomer, and the difunctional monomer, together, are present at an amount in a range of from about 10 weight % to about 30 weight % in the resin particles, wherein the acidic monomer is a combination of styrenesulfonic acid and methacrylic acid, and further wherein, a total amount of the acidic monomer is present at an amount in a range of from 10 weight % to 15 weight %. ### Claim 2 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the amount of the acidic monomer, the hydrophilic monomer, and the difunctional monomer, together, is from about 15 weight % to about 30 weight % in the resin particles. ### Claim 3 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the aqueous inkjet ink composition is free of a binder resin other than the resin particles. ### Claim 4 (depends on 1) The aqueous inkjet ink composition of claim 1, comprising the wax, wherein the wax is a nanoscale, anionic wax emulsion. ### Claim 5 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the hydrophilic monomer comprises a hydroxyl moiety, a glycol moiety, or both. ### Claim 6 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the hydrophilic monomer is selected from hydroxyethyl (meth)acrylate, n-hydroxyethyl (meth)acrylamide, hydroxypropyl (metha)crylate, hydroxypropyl (meth)acrylamide, ethylene glycol (meth)acrylate, propylene glycol (meth)acrylate, a poly(ethylene glycol) (meth)acrylate, and a poly(propylene glycol) (meth)acrylate. ### Claim 7 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the hydrophilic monomer is a poly(ethylene glycol) methacrylate having a molecular weight in a range of from about 185 g/mol to about 1500 g/mol. ### Claim 8 (depends on 7) The aqueous inkjet ink composition of claim 7, wherein the molecular weight is in a range of from about 360 g/mol to about 1500 g/mol. ### Claim 9 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the difunctional monomer is a poly(ethylene glycol) diacrylate. ### Claim 10 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the reactants comprise styrene, an alkyl acrylate, the methacrylic acid, the styrenesulfonic acid, a poly(ethylene glycol) methacrylate, a polyethylene glycol diacrylate, and an anionic ether sulfate reactive surfactant. ### Claim 11 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the difunctional monomer is present at an amount in a range of from about 0.01 weight % to about 0.8 weight % in the resin particles. ### Claim 12 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the resin particles, dispersed in water at a solids content of about 30%, are characterized by a room temperature viscosity in a range of from about 10 cP to about 100 cP. ### Claim 13 (depends on 12) The aqueous inkjet ink composition of claim 12, wherein the room temperature viscosity is in a range of from about 10 cP to about 40 cP. ### Claim 14 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the reactants consist of one or more types of the monomer, one or more types of the acidic monomer, one or more types of the hydrophilic monomer, one or more types of the difunctional monomer, one or more types of the reactive surfactant, one or more types of a chain transfer agent, and optionally, one or more types of an initiator. ### Claim 15 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the reactants consist of styrene, an alkyl acrylate, the methacrylic acid, the styrenesulfonic acid, a poly(ethylene glycol) methacrylate, a polyethylene glycol diacrylate, an anionic ether sulfate reactive surfactant, a chain transfer agent, and optionally, an initiator. ### Claim 16 (depends on 1) The aqueous inkjet ink composition of claim 1, further comprising silica nanoparticles bound to the hydrophilic monomer. ### Claim 17 (depends on 1) The aqueous inkjet ink composition of claim 1, comprising a nanoscale, anionic wax emulsion, wherein the aqueous inkjet ink composition exhibits a wet rub resistance of at least about 10 double-rubs using a wet Q-tip as measured using an about 4.5 ng drop of the aqueous inkjet ink composition; a wet rub resistance of at least about 25 double-rubs using a wet Q-tip as measured using an about 9 ng drop of the aqueous inkjet ink composition; or both. ### Claim 18 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the aqueous inkjet ink composition exhibits a viscosity as measured at room temperature after about 40 days at room temperature that is the same as an initial viscosity; a viscosity as measured at room temperature after about 3 days at about 60° C. that is the same as an initial viscosity; or both. ### Claim 19 (depends on 1) The aqueous inkjet ink composition of claim 1, wherein the hydrophilic monomer is hydroxyethyl (meth)acrylate or a poly(ethylene glycol) (meth)acrylate, and a total amount of the hydrophilic monomer is present at an amount in a range of from 5 weight % to 15 weight %. ### Claim 20 (depends on 15) The aqueous inkjet ink composition of claim 15, wherein the poly(ethylene glycol) methacrylate is present at an amount in a range of from 5 weight % to 15 weight %.