# US 10,370,519 B2 · Matting paste composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,370,519 B2 - Document ID: US10370519B2 - Status: Granted - Kind: B2 - Application number: 15/242,884 - Filed: 2016-08-22 - Published: 2016-12-08 - Granted: 2019-08-06 - Earliest claimed: 2012-07-24 - Assignees: Akzo Nobel Coatings International B.V. - Applicants: Akzo Nobel Coatings International B.V. - Inventors: Toolika Rhoades; Justin Blair - Web page: https://patentgrep.com/patent/US10370519B2 ## CPC - C08K 5/17: Amines; Quaternary ammonium compounds - C08K 3/36: Silica - C08K 5/3435: Piperidines - C08K 5/3475: condensed with carbocyclic rings - C09D 7/42: Gloss-reducing agents - C09D 7/48: Stabilisers against degradation by oxygen, light or heat - C09D 17/00: Pigment pastes, e.g. for mixing in paints (artists' paints C09D5/06) - C09D 175/04: Polyurethanes - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - 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 The invention is directed to a matting paste composition comprising: a) thermoplastic non-hydroxy-functional acrylic resin; b) hindered amine light stabilizer; c) UV absorber; d) amorphous, untreated fumed silica, flattener; and e) one or more organic solvents. ## Claims ### Claim 1 A matting paste composition comprising: a) a styrene, methyl methacrylate and/or butyl methacrylate thermoplastic non-hydroxy-functional acrylic resin having a weight average molecular weight in the range from about 50,000 to about 100,000 and present in an amount in the range of from about 15 to about 35%, based on the total weight of the matting paste composition; b) hindered amine light stabilizer present in an amount in the range of from about 1.5 to about 8%, based on the total weight of the matting paste composition; c) UV absorber present in an amount in the range of from about 2 to about 8%, based on the total weight of the matting paste composition; d) amorphous, untreated fumed silica, flattener present in an amount in the range of from about 7 to about 13%, based on the total weight of the matting paste composition; e) one or more organic solvents present in an amount in the range of from 40 to 60%, based on the total weight of the matting paste composition; f) from about 2% to about 14% castor oil based on the total weight of the matting paste composition, wherein the castor oil is a triglyceride of 90% ricinoleic acid, having a molecular weight of about 900, a refractive index of 1.4775, and an OH value of 164; and g) wherein the matting paste composition is used to prepare a 2K polyurethane coating having a gloss in the range of 15 to 45 gloss units at 60° angle. ### Claim 2 (depends on 1) The matting paste according to claim 1, wherein the matting paste composition is free of extender pigments. ### Claim 3 (depends on 1) The matting paste according to claim 1, wherein the styrene, methyl methacrylate and/or butyl methacrylate thermoplastic non-hydroxy-functional acrylic resin has a Tg in the range of from 50-100° C. ### Claim 4 (depends on 1) The matting paste according to claim 1, wherein the hindered amine light stabilizer is selected from the group consisting of Bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, methyl (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, and combinations thereof. ### Claim 5 (depends on 1) The matting paste according to claim 1, wherein the UV absorber is a benzotriazol type absorber. ### Claim 6 (depends on 1) The matting paste according to claim 1, wherein the organic solvent is selected from the group consisting of t-butyl acetate, parachlorobenzotrifluoride, methyl amyl ketone, ethyl 3-ethoxy propionate, and combinations thereof. ### Claim 7 (depends on 1) A liquid coating composition comprising the matting paste composition according to claim 1. ### Claim 8 (depends on 7) A liquid coating composition according to claim 7, wherein the coating composition is a topcoat or a clearcoat. ### Claim 9 A matting paste composition comprising: a) a styrene, methyl methacrylate and/or butyl methacrylate thermoplastic styrene non-hydroxy-functional acrylic resin having a weight average molecular weight in the range from about 50,000 to about 100,000 and present in an amount in the range of from about 15 to about 35 %, based on the total weight of the matting paste composition; b) hindered amine light stabilizer present in an amount in the range of from about 1.5 to about 8%, based on the total weight of the matting paste composition; c) UV absorber present in an amount in the range of from about 2 to about 8%, based on the total weight of the matting paste composition; d) amorphous, untreated fumed silica, flattener present in an amount in the range of from about 7 to about 13%, based on the total weight of the matting paste composition; and e) one or more organic solvents present in an amount in the range of from 40 to 60%, based on the total weight of the matting paste composition. ### Claim 10 (depends on 9) The matting paste according to claim 9, wherein the matting paste composition is free of extender pigments. ### Claim 11 (depends on 9) The matting paste composition according to claim 9, further comprising an additive selected from the group consisting of castor oil, a low Tg acrylic or polyester, and combinations thereof. ### Claim 12 (depends on 9) The matting paste according to claim 9, wherein the styrene, methyl methacrylate and/or butyl methacrylate thermoplastic non-hydroxy-functional acrylic resin has a Tg in the range of from 50-100° C. ### Claim 13 (depends on 9) The matting paste according to claim 9, wherein the hindered amine light stabilizer is selected from the group consisting of Bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, methyl (1,2,2,6,6-pentamethy -4-piperidyl) sebacate, and combinations thereof. ### Claim 14 (depends on 9) The matting paste according to claim 9, wherein the UV absorber is a benzotriazol type absorber. ### Claim 15 (depends on 9) The matting paste according to claim 9, wherein the organic solvent is selected from the group consisting of t-butyl acetate, PCBTF, MAK, EEP, and combinations thereof. ### Claim 16 (depends on 9) A liquid coating composition comprising the matting paste composition according to claim 9. ### Claim 17 (depends on 16) A liquid coating composition according to claim 16, wherein the coating composition is a 2K polyurethane coating having a gloss in the range of 0 to 60 gloss units at 60° angle. ### Claim 18 (depends on 16) A liquid coating composition according to claim 16, wherein the coating composition is a topcoat or a clearcoat.