# US 9,005,708 B2 · Undercoat composition for ink jet printing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,005,708 B2 - Document ID: US9005708B2 - Status: Granted - Kind: B2 - Application number: 13/905,833 - Filed: 2013-05-30 - Published: 2014-12-04 - Granted: 2015-04-14 - Earliest claimed: 2013-05-30 - Assignees: Xerox Corporation - Applicants: Xerox Corporation - Inventors: James D. Mayo; Stephan Drappel; C. Geoffrey Allen; Biby E. Abraham; Sonja Hadzidedic - Web page: https://patentgrep.com/patent/US9005708B2 ## CPC - B41J 11/0015: {for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114)} - B41M 5/0011: {Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating (after-treatment of prints B41M7/00; printers for treating or overcoating copy materials before, during or after printing B41J11/0015)} - C09D 11/10: based on artificial resins - C09D 11/34: Hot-melt inks - C09D 11/38: characterised by non-macromolecular additives other than solvents, pigments or dyes - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - 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) - 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) ## Abstract An ink jettable underprint composition includes a reversible polymer material, which can reversibly transition between a liquid state and a solid state by reversible cycloaddition reactions, wherein upon cooling, the reversible polymer material transitions from a liquid state to a solid state by reversible cycloaddition reactions within a time period of less than about 10 seconds. ## Claims ### Claim 1 A method of ink jet printing, comprising: providing an ink jettable underprint composition comprising a reversible polymer material, which can reversibly transition between a liquid state and a solid state by reversible cycloaddition reactions; ink jetting the underprint composition onto a substrate; ink jetting an image over at least a portion of the underprint composition; and cooling the underprint composition, whereby the reversible polymer material transitions from a liquid state to a solid state by reversible cycloaddition reactions within a time period of less than about 10 seconds. ### Claim 2 (depends on 1) The method of claim 1, wherein upon cooling, the reversible polymer material transitions from a liquid state to a solid state by reversible cycloaddition reactions within a time period of less than about 1 second. ### Claim 3 (depends on 1) The method of claim 1, wherein the liquid state comprises a maleimide compound and a furan compound. ### Claim 4 (depends on 3) The method of claim 3, wherein the maleimide compound is a bismaleimide and the furan compound is a bisfuran of the following structures: wherein each R, which can be the same or different, is a linking group. ### Claim 5 (depends on 4) The method of claim 4, wherein each R is selected from the group consisting of substituted or unsubstituted linear or branched alkyl groups, substituted or unsubstituted cyclic alkyl groups, substituted or unsubstituted aryl groups, substituted or unsubstituted arylalkyl groups, substituted or unsubstituted alkylaryl groups, and substituted or unsubstituted alkylenedioxy groups. ### Claim 6 (depends on 4) The method of claim 4, wherein each R is the same. ### Claim 7 (depends on 3) The method of claim 3, wherein the maleimide compound is a trigonal maleimide and the furan compound is a trigonal furan of the following structures: wherein each R′, which can be the same or different, is a linking group. ### Claim 8 (depends on 7) The method of claim 7, wherein each R′ is NR3, and each R is selected from the group consisting of substituted or unsubstituted linear or branched alkyl groups, substituted or unsubstituted cyclic alkyl groups, substituted or unsubstituted aryl groups, substituted or unsubstituted arylalkyl groups, substituted or unsubstituted alkylaryl groups, and substituted or unsubstituted alkylenedioxy groups. ### Claim 9 (depends on 7) The method of claim 7, wherein each R′ is the same. ### Claim 10 (depends on 3) The method of claim 3, the liquid state comprises two or more different maleimide compounds and two or more different furan compounds. ### Claim 11 (depends on 1) The method of claim 1, wherein the ink jettable underprint composition consists essentially of the reversible polymer material. ### Claim 12 (depends on 1) The method of claim 1, wherein the ink jettable underprint composition consists essentially of the reversible polymer material and a radical scavenger as a stabilizer. ### Claim 13 (depends on 1) The method of claim 1, wherein the ink jettable underprint composition has a viscosity of from about 1 cp to about 100 cPs at a temperature of from about 60° C. to about 140° C. ### Claim 14 (depends on 1) The method of claim 1, wherein the image is an ink-based image. ### Claim 15 (depends on 1) The method of claim 1, wherein the image is a toner-based image. ### Claim 16 (depends on 1) The method of claim 1, wherein the underprint composition is jetted substantially only over areas of the substrate that are subsequently imaged. ### Claim 17 (depends on 1) The method of claim 1, wherein the underprint composition is jetted over an entire surface of said substrate. ### Claim 18 A method of ink jet printing, comprising: applying an underprint composition onto a substrate, the underprint composition comprising a reversible polymer material, which can reversibly transition between a liquid state and a solid state by reversible cycloaddition reactions; forming an image over at least a portion of the underprint composition; and cooling the underprint composition, whereby the reversible polymer material transitions from a liquid state to a solid state by reversible cycloaddition reactions within a time period of less than about 10 seconds.