# US 10,767,080 B2 · 1K waterborne dry-erase coating composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,767,080 B2 - Document ID: US10767080B2 - Status: Granted - Kind: B2 - Application number: 16/186,923 - Filed: 2018-11-12 - Published: 2019-03-14 - Granted: 2020-09-08 - Earliest claimed: 2016-05-27 - Assignees: The Sherwin-Williams Company - Applicants: The Sherwin-Williams Company - Inventors: Frank F. Markovitz; Brian Makowski; Jay A. Reimann - Web page: https://patentgrep.com/patent/US10767080B2 ## CPC - C09D 183/14: in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms (C09D183/10 takes precedence) - C08G 77/388: containing nitrogen - C08G 77/54: Nitrogen-containing linkages - C08K 3/22: of metals - C09D 5/008: {Temporary coatings (C09D5/20 takes precedence)} - C09D 7/65: macromolecular (C09D7/41-C09D7/48 take precedence) - C09D 175/04: Polyurethanes - C08G 77/14: containing silicon bound to oxygen-containing groups - C08G 77/70: {Siloxanes defined by use of the MDTQ nomenclature} - C08K 2003/2241: {Titanium dioxide} - C09D 183/06: containing silicon bound to oxygen-containing groups (C09D183/12 takes precedence) - C09D 183/08: containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen - C09D 183/16: in which all the silicon atoms are connected by linkages other than oxygen atoms - 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) - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract Disclosed is a coating composition suitable for coating onto a wall or other substrate to yield a dry-erase coating, The composition may be prepared by reacting an excess amount of an aminosilane with a carbonate, an epoxy alcohol, or both in aqueous media to yield a silylurethane, and/or a silylamino polyol. In some approaches, the compositions and/or methods may further include an epoxysilane, and allowing the epoxysilane to react with the aminosilane to yield an aminodisilane. This reaction will result in a coating composition that comprises one of a silylurethane, a silylamino polyol, or both, and the aminodisilane. The aqueous mixture of the silylurethane, the silylamino polyol, or both, and the aminodisilane together constitute a coating composition that, upon curing, forms a dry-erase coating. ## Claims ### Claim 1 A method of making a coating composition, the method comprising: reacting an excess amount of an aminosilane with an epoxy alcohol in aqueous media to yield a silylamino polyol crosslinker; and including an epoxysilane in the reaction and allowing the epoxysilane to react with the aminosilane to yield an aminodisilane crosslinker, wherein a coating composition is formed that includes the silylamino polyol crosslinker and the aminodisilane crosslinker. ### Claim 2 (depends on 1) The method according to claim 1, further including preparing said silylamino polyol crosslinker and said aminodisilane crosslinker in a single reaction vessel. ### Claim 3 (depends on 1) The method according to claim 1, wherein the aminosilane has a structure represented by the Formula (1): wherein A1, A2, and A3 are the same or different and are hydrogen or a C1 to C4 alkyl group, B1 and B2 are the same or different and are hydrogen or a C1 to C4 alkyl group, with the proviso that at least one of B1 and B2 is hydrogen, and R is a C1 to C4 alkylene group. ### Claim 4 (depends on 3) The method according to claim 3, wherein each of A1, A2, and A3 is hydrogen. ### Claim 5 (depends on 4) The method according to claim 4, wherein the aminosilane is aminopropyl trisilanol. ### Claim 6 (depends on 3) The method according to claim 3, wherein each of A1, A2, and A3 is independently a C1 to C4 alkyl group. ### Claim 7 (depends on 6) The method according to claim 6, wherein the aminosilane is an aminopropyl trialkoxysilane. ### Claim 8 (depends on 7) The method according to claim 7, wherein the aminosilane is aminopropyl trimethoxysilane. ### Claim 9 (depends on 1) The method according to claim 1, the epoxy alcohol has a formula according to Formula (2a): wherein R′ is direct bond or a C1 to C4 alkylene linker and Ra and Rb are each independently a hydrogen or a C1 to C4 alkyl group. ### Claim 10 (depends on 9) The method according to claim 9, wherein the epoxy alcohol is glycidol. ### Claim 11 (depends on 1) The method according to claim 1, wherein the epoxysilane has a structure according Formula (3): wherein R4 is any one or more of an alkylene group, a branched alkylene group, an ester group, and an ether group, R5 to R7 are the same or different alkyl groups, and R8 and R9 are the same or different and are hydrogen or a C1-C4 alkyl group. ### Claim 12 (depends on 11) The method according to claim 11, wherein the epoxysilane is glycidoxypropyl trimethoxysilane. ### Claim 13 (depends on 1) The method according to claim 1, wherein the epoxysilane has a structure according to formula (4): wherein R10 is any one or more of an alkylene group, a branched alkylene group, an ester group, and an ether group, R11 is an alkyl group, and n is an integer from 1 to 100. ### Claim 14 (depends on 1) The method according to claim 1, wherein the epoxysilane has a structure according to Formula (5): wherein R12 and R13 are a cyclic carbon structure, and R14 is any one or more of an alkylene group, a branched alkylene group, an ester group, and an ether group, and A1, A2, and A3 are the same or different and are hydrogen or a C1 to C4 alkyl group. ### Claim 15 (depends on 1) The method according to claim 1, including maintaining the reaction pH between 6 and 11. ### Claim 16 (depends on 1) The method according to claim 1, further including adding a plasticizer. ### Claim 17 (depends on 16) The method according to claim 16, wherein the plasticizer is polyethylene glycol. ### Claim 18 (depends on 1) The method according to claim 1, further including adding a pigment. ### Claim 19 (depends on 18) The method according to claim 18, wherein the pigment is titanium dioxide. ### Claim 20 (depends on 1) The method according to claim 1, further including a carbonate, wherein the aminosilane reacts with the carbonate to form a silylurethane.