# US 5,708,057 A · Silicone-modified water-based coating composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,708,057 A - Document ID: US5708057A - Status: Granted - Kind: A - Application number: 07/900,865 - Filed: 1992-06-18 - Granted: 1998-01-13 - Earliest claimed: 1991-06-28 - Assignees: Dow Corning Toray Silicone Co., Ltd. - Inventors: Yoshitsugu Morita; Atsushi Sakuma; Noriyasu Yokoyama; Keiji Yoshida - Web page: https://patentgrep.com/patent/US5708057A ## CPC - C09D 5/024: {characterised by the additives} - C09D 133/06: of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical - C08L 83/04: Polysiloxanes - C08L 2205/18: Spheres - 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) - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) ## Abstract A silicone-modified water-based coating composition is disclosed wherein a suspension of silicone rubber particles in water is added to a water-based coating composition such that the resulting system is storage-stable and forms a mat film when dried or cured, which film is soft to the touch. ## Claims ### Claim 1 A silicone-modified water-based coating composition consisting essentially of a mixture of: (A) a water-based coating composition; and (B) a suspension of a plurality of silicone rubber particles in water, the content of said silicone rubber suspension (B) being such that said silicone-modified water-based coating composition is storage-stable and forms a mat film which is soft to the touch. ### Claim 2 (depends on 1) The composition according to claim 1, wherein the average size of said silicone rubber particles is .ltoreq.200 micrometers. ### Claim 3 (depends on 2) The composition according to claim 2, wherein said water-based coating composition (A) is selected from the group consisting of water-based polyurethane resin coating compositions, water-based alkyd resin coating compositions, water-based aminoalkyd resin coating compositions, water-based epoxy resin coating compositions, water-based acrylic resin coating compositions, water-based silicone-modified epoxy resin coating compositions, water-based silicone-modified polyester resin coating compositions and water-based silicone resin coating compositions. ### Claim 4 (depends on 3) The composition according to claim 3, wherein 1 to 150 parts by weight of said particles of suspension (B) are used for each 100 parts by weight of the total solids in said water-based coating composition (A). ### Claim 5 (depends on 1) The composition according to claim 1, wherein said silicone rubber particles have an average size of 1 to 100 micrometers. ### Claim 6 (depends on 3) The composition according to claim 3, wherein said silicone rubber particles have an average size of 1 to 100 micrometers. ### Claim 7 (depends on 4) The composition according to claim 4, wherein said silicone rubber particles have an average size of 1 to 100 micrometers. ### Claim 8 (depends on 1) The composition according to claim 1, wherein said silicone rubber particles are polydimethylsiloxane. ### Claim 9 (depends on 8) The composition according to claim 8, wherein the average size of said polydimethylsiloxane rubber particles is .ltoreq.200 micrometers. ### Claim 10 (depends on 9) The composition according to claim 9, wherein said water-based coating composition (A) is selected from the group consisting of water-based polyurethane resin coating compositions, water-based alkyd resin coating compositions, water-based aminoalkyd resin coating compositions, water-based epoxy resin coating compositions, water-based acrylic resin coating compositions, water-based silicone-modified epoxy resin coating compositions, water-based silicone-modified polyester resin coating compositions and water-based silicone resin coating compositions. ### Claim 11 (depends on 10) The composition according to claim 10, wherein 1 to 150 parts by weight of said particles of suspension (B) are used for each 100 parts by weight of the total solids in said water-based coating composition (A). ### Claim 12 (depends on 8) The composition according to claim 8, wherein said silicone rubber particles have an average size of 1 to 100 micrometers. ### Claim 13 (depends on 10) The composition according to claim 10, wherein said silicone rubber particles have an average size of 1 to 100 micrometers. ### Claim 14 (depends on 11) The composition according to claim 11, wherein said silicone rubber particles have an average size of 1 to 100 micrometers. ### Claim 15 (depends on 12) The composition according to claim 12, wherein 1 to 100 parts by weight of said particles of suspension (B) are used for each 100 parts by weight of the total solids in said water-based coating composition (A). ### Claim 16 (depends on 13) The composition according to claim 13, wherein 1 to 100 parts by weight of said particles of suspension (B) are used for each 100 parts by weight of the total solids in said water-based coating composition (A).