# US 9,752,278 B2 · Methods for treating surfaces with sealant-containing powder > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,278 B2 - Document ID: US9752278B2 - Status: Granted - Kind: B2 - Application number: 15/376,706 - Filed: 2016-12-13 - Published: 2017-03-30 - Granted: 2017-09-05 - Earliest claimed: 2014-11-10 - Assignees: Cal-Tex Protective Coatings, Inc. - Applicants: Cal-Tex Protective Coatings, Inc. - Inventors: Rande Hawkinson; Thomas Engelken; John E. Blount; Darin Klaehn - Web page: https://patentgrep.com/patent/US9752278B2 ## CPC - D06M 23/12: Processes in which the treating agent is incorporated in microcapsules (making microcapsules B01J13/02) - B05D 1/26: performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface - B05D 1/28: performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers - B05D 3/12: by mechanical means - B05D 5/08: to obtain an anti-friction or anti-adhesive surface (rendering particulate materials free-flowing in general, e.g. making them hydrophobic B01J2/30) - B05D 5/083: {involving the use of fluoropolymers} - D06M 11/79: with silicon dioxide, silicic acids or their salts - D06M 15/256: containing fluorine - D06M 15/263: of unsaturated carboxylic acids; Salts or esters thereof - D06M 15/277: containing fluorine - D06M 23/08: Processes in which the treating agent is applied in powder or granular form (adhesives for multi-layer textile fabrics D06M17/00) - B05D 2401/32: applied as powders - B05D 2601/22: Silica - D06M 2200/01: Stain or soil resistance - D06M 2200/12: Hydrophobic properties - D06M: TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS - B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02) ## Abstract Compositions comprising a liquid and fumed silica may be applied to surfaces as a sealant, e.g., to protect against damage or deterioration. The composition may be a powder, wherein a method of treating the surface includes applying pressure to the powder on the surface with an applicator, and the pressure releases the liquid sealant from the powder onto the surface. The liquid may comprise water and one or more polymers, such as a fluorocopolymer and a functionalized anionic polymer. ## Claims ### Claim 1 A method of treating a surface, the method comprising: applying pressure to a powder on the surface with an applicator, wherein the powder comprises: a liquid sealant comprising water and at least two polymers chosen from anionic polymers, anionic copolymers, fluoropolymers, fluorocopolymers, acrylic polymers, and acrylic copolymers, and combinations thereof; and fumed silica; wherein the pressure releases the liquid sealant from the powder onto the surface. ### Claim 2 (depends on 1) The method of claim 1, wherein the powder is dry before the pressure is applied. ### Claim 3 (depends on 1) The method of claim 1, wherein the applicator comprises a brush or a sponge. ### Claim 4 (depends on 1) The method of claim 1, wherein applying pressure to the powder includes sweeping the surface with a brush or a sponge. ### Claim 5 (depends on 1) The method of claim 1, further comprising depositing the powder on the surface from a container. ### Claim 6 (depends on 1) The method of claim 1, wherein the powder comprises particles comprising the liquid sealant at least partially encapsulated by the fumed silica, and applying pressure to the powder causes the particles to release the liquid sealant onto the surface. ### Claim 7 (depends on 1) The method of claim 1, wherein the liquid sealant is at least partially absorbed by the surface after the liquid sealant is released from the powder. ### Claim 8 (depends on 1) The method of claim 1, wherein a combined weight of the at least two polymers comprises from about 5% to about 30% of the total weight of the liquid sealant. ### Claim 9 (depends on 1) The method of claim 1, wherein the liquid sealant comprises from about 3% to about 10% perfluoroalkyl acylate by weight, with respect to the total weight of the liquid sealant. ### Claim 10 (depends on 1) The method of claim 1, wherein the powder comprises from about 2% to about 20% of the fumed silica by weight, with respect to the total weight of the powder. ### Claim 11 (depends on 1) The method of claim 1, wherein the liquid sealant comprises from about 85% to about 98% of water by weight, with respect to the total weight of the liquid sealant. ### Claim 12 (depends on 1) The method of claim 1, wherein the surface is an interior surface of a vehicle. ### Claim 13 A method of treating a surface, the method comprising: applying pressure to a dry powder on the surface by sweeping an applicator across the dry powder and the surface; wherein the dry powder comprises droplets of a liquid sealant at least partially surrounded by fumed silica, the liquid sealant comprising water, a first polymer, and a second polymer different from the first polymer, each of the first and second polymers being an anionic polymer, an anionic copolymer, a fluoropolymer, a fluorocopolymer, an acrylic polymer, or an acrylic copolymer; and wherein the pressure releases at least a portion of the liquid sealant from the fumed silica onto the surface. ### Claim 14 (depends on 13) The method of claim 13, wherein the liquid sealant is formulated to treat vehicle upholstery. ### Claim 15 (depends on 13) The method of claim 13, wherein the applicator includes a brush or a sponge. ### Claim 16 A method of treating a surface inside a vehicle, the method comprising: applying pressure to a powder on the surface via an applicator, wherein the powder comprises droplets of a liquid sealant at least partially surrounded by fumed silica such that the powder is dry, the liquid sealant comprising: a first polymer chosen from an anionic polymer, an anionic copolymer, a fluoropolymer, a fluorocopolymer, an acrylic polymer, or an acrylic copolymer; a second polymer different from the first polymer; and from about 85% to about 98% water by weight, with respect to the total weight of the liquid sealant; wherein the pressure releases at least a portion of the liquid sealant from the fumed silica onto the surface. ### Claim 17 (depends on 16) The method of claim 16, further comprising depositing the powder on the surface before applying pressure to the powder. ### Claim 18 (depends on 17) The method of claim 17, wherein the powder is deposited on the surface with the applicator. ### Claim 19 (depends on 16) The method of claim 16, wherein the liquid sealant released from the powder is at least partially absorbed by the surface and serves to protect the surface. ### Claim 20 (depends on 16) The method of claim 16, wherein the first polymer comprises perfluoroalkyl acylate, and the second polymer comprises an anionic polymer including at least one functional group chosen from alkyl, alkene, alkyne, aldehyde, ketone, hydroxyl, carboxyl, halide, thiol, phosphate, and amine groups.