# US 12,180,319 B1 · Silicone polyethers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,180,319 B1 - Document ID: US12180319B1 - Status: Granted - Kind: B1 - Application number: 18/712,587 - Filed: 2022-10-12 - Published: 2024-12-26 - Granted: 2024-12-31 - Earliest claimed: 2021-12-20 - Assignees: Dow Silicones Corporation - Applicants: Dow Silicones Corporation - Inventors: Mirasbek Kuterbekov; Sophie Hanssens; Stephane Ugazio - Web page: https://patentgrep.com/patent/US12180319B1 ## CPC - C08F 283/12: on to polysiloxanes - C08F 2/24: with the aid of emulsifying agents - C08G 77/46: containing polyether sequences - C08G 77/12: containing silicon bound to hydrogen - C08G 77/20: containing silicon bound to unsaturated aliphatic groups - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ## Abstract A class of silicone polyethers represented by formula (I) along with methods for their preparation including the steps of combining: a) a polyorganohydrogensiloxane (“—SiH polymer”) as represented by formula (VI) and b) a polyoxyalkylene as represented by formula (VII) in the presence of c) a hydrosilylation catalyst. ## Claims ### Claim 1 A silicone polyether represented by the following formula: wherein: R is the same or different and is selected from: H and a hydrocarbon group comprising from 1 to 18 carbon atoms with the proviso that R comprises less than 80 mol % H, m is an integer from 0 to 100, n is an integer from 10 to 500, and Z is the same or different and is selected from: Y, OH and an organosiloxane group represented by the following formula: (II): wherein R is as previously defined, R′ is an aliphatic bivalent hydrocarbon group having from 2 to 4 carbon atoms, and t is 10 to 800; Y is represented by following formula: wherein: R1 is the same or different and is selected from an aliphatic hydrocarbon group comprising from 8 to 20 carbon atoms; R2 is represented by the following formula: -(AO)q—X wherein: A is the same or different and is selected from aliphatic bivalent hydrocarbon group having from 2 to 4 carbon atoms with the proviso that (AO)q comprises at least 3 ethylene oxide moieties q is an integer from 3 to 40, and X is the same or different and is selected from: H and an aliphatic hydrocarbon group having from 1 to 4 carbon atoms; and R3 is the same or different and is an aliphatic bivalent hydrocarbon group comprising from 1 to 4 carbon atoms, with the proviso that Z comprises: i) 10 to 80 mol % of Y, ii) 0 to 60 mol % OH, and i) 0 to 60 mol % of the organosiloxane group of formula II. ### Claim 2 (depends on 1) The silicone polyether of claim 1 wherein R2 is represented by the following formula: —(CH2CH2O—)qX wherein: q is an integer between 3 and 40, and X is the same or different and is selected from: H and an alkyl group having from 1 to 4 carbon atoms. ### Claim 3 (depends on 1) The silicone polyether of claim 1 where R3 is a methylene group. ### Claim 4 (depends on 1) The silicone polyether of claim 1 where R1 is the same or different and is select from an alkyl group comprising from 8 to 20 carbon atoms. ### Claim 5 (depends on 1) The silicone polyether of claim 1 wherein R comprises at least 90 mol % of methyl groups. ### Claim 6 (depends on 1) The silicone polyether of claim 1 wherein Z comprises greater than 40 mol % of Y, and the sum of OH and organosiloxane is less than 60 mol %. ### Claim 7 A silicone polyether represented by the following formula: wherein: R is the same or different and is selected from: H and a hydrocarbon group comprising from 1 to 18 carbon atoms with the proviso that R comprises less than 80 mol % H, m is an integer from 0 to 100, n is an integer from 10 to 500, R1 is the same or different and is selected from an aliphatic hydrocarbon group comprising from 8 to 20 carbon atoms; R2 is represented by the following formula: -(AO)q—X wherein: A is the same or different and is selected from aliphatic bivalent hydrocarbon group having from 2 to 4 carbon atoms with the proviso that (AO)q comprises at least 3 ethylene oxide moieties q is an integer from 3 to 40, and X is the same or different and is selected from: H and an aliphatic hydrocarbon group having from 1 to 4 carbon atoms; and R3 is the same or different and is an aliphatic bivalent hydrocarbon group comprising from 1 to 4 carbon atoms. ### Claim 8 A method for preparing a silicone polyether comprising the steps of combining the following components: a) a polyorganohydrogensiloxane represented by the following formula: wherein: R is the same or different and is selected from: H and a hydrocarbon group comprising from 1 to 18 carbon atoms with the proviso that R comprises less than 80 mol % H, m is an integer from 0 to 100, and n is an integer from 10 to 500, b) a polyoxyalkylene represented by the following formula: wherein: R1 is the same or different and is selected from an aliphatic hydrocarbon group comprising from 8 to 20 carbon atoms, R2 is represented by the following formula: -(AO)q—X wherein: A is the same or different and is selected from aliphatic bivalent hydrocarbon group having from 2 to 4 carbon atoms with the proviso that (AO)q comprises at least 3 ethylene oxide moieties, q is an integer from 3 to 40, and X is the same or different and is selected from: H and an aliphatic hydrocarbon group having from 1 to 4 carbon atoms, and R3 is the same or different and is an aliphatic bivalent hydrocarbon group comprising from 1 to 4 carbon atoms, and R4 is the same or different and is selected from alkenyl and alkynyl, and c) a hydrosilylation catalyst. ### Claim 9 (depends on 8) The method of claim 8 further comprising the steps of: i) combining components a), b) and c) in water to form an emulsion and ii) conducting a hydrosilylation reaction between components a) and b) to form an in-situ silicone polyether reaction product. ### Claim 10 (depends on 8) The method of claim 8 further comprising the steps of: i) combining components a) and b) in water with mixing to form an emulsion, ii) adding component c) to the emulsion of step i) the emulsion to form an in-situ silicone polyether reaction product. ### Claim 11 (depends on 8) The method of claim 8 further comprising the step of adding alcohol to the emulsion comprising the silicone polyether reaction product to form an emulsion comprising at least 10 wt % alcohol. ### Claim 12 (depends on 8) The method of claim 8 wherein the emulsion comprising the silicone polyether reaction product is substantially free of surfactant. ### Claim 13 (depends on 8) The method of claim 8 wherein the step of combining components a) and b) further comprising combining d) an alkenyl functional polyorganosiloxane. ### Claim 14 (depends on 8) The method of claim 8 wherein the step of combining components a) and b) further comprises combining e) an oil selected from at least one of: i) polydimethylsiloxane and ii) a hydrocarbon-based oil. ### Claim 15 (depends on 14) The method of claim 14 wherein the hydrocarbon-based oil is selected from at least one of mineral oils and vegetable oils.