# US 12,599,131 B2 · Disinfectant composition > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,599,131 B2 - Document ID: US12599131B2 - Status: Granted - Kind: B2 - Application number: 18/011,581 - Filed: 2021-09-29 - Published: 2023-09-07 - Granted: 2026-04-14 - Earliest claimed: 2020-09-30 - Assignees: Kao Corporation - Applicants: Kao Corporation - Inventors: Hiroko Kawaguchi; Yoshiko Kiyohara; Takanori Saito - Web page: https://patentgrep.com/patent/US12599131B2 ## CPC - A01N 37/06: Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof - A01N 37/04: polybasic - A01N 37/36: containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids - A01N 41/04: Sulfonic acids; Derivatives thereof - A01P 3/00: Fungicides - Y02A 50/30: Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change - A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS - A01P: BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE ## Abstract Provided is a disinfectant composition exhibiting high disinfecting ability even if containing no disinfecting base agents that have conventionally been widely used or containing the disinfecting base agents in a reduced amount. The disinfectant composition contains an internal olefin sulfonate with 8 or more and 24 or less carbons; one or more organic acids selected from monocarboxylic acids, hydroxy acids, and dicarboxylic acids; and water. ## Claims ### Claim 1 A disinfectant composition, comprising: an internal olefin sulfonate with 8 or more and 24 or less carbons as a component (A), one or more organic acids selected from the group consisting of selected from the group consisting of lactic acid, succinic acid, gluconic acid, and adipic acid, as a component (B), and water, wherein: the component (A) comprises an internal olefin sulfonate (IO-1S) with 8 or more and 24 or less carbons in which a sulfonic acid group is present at position 2 or more and 4 or less and an internal olefin sulfonate (IO-2S) with 8 or more and 24 or less carbons in which a sulfonic acid group is present at position 5 or more, and (IO-1S)/(IO-2S), which is a mass ratio of a content of (IO-1S) to a content of (IO-2S) in the component (A), is 0.5 or more and 6.5 or less and wherein (B)/(A), which is a mass ratio of a content of the component (A) and a content of the component (B), is 0.01 or more and 2 or less. ### Claim 2 (depends on 1) The disinfectant composition according to claim 1, further comprising an organic solvent with a LogP of 0.5 or more and 10 or less as a component (C). ### Claim 3 (depends on 1) The disinfectant composition according to claim 1, further comprising a nonionic surfactant as a component (D). ### Claim 4 A disinfectant composition, consisting essentially of: an internal olefin sulfonate with 8 or more and 24 or less carbons as a component (A), one or more organic acids selected from the group consisting of lactic acid, succinic acid, gluconic acid, and adipic acid, as a component (B)), optionally an organic solvent with a LogP of 0.5 or more and 10 or less as a component (C), optionally a nonionic surfactant as a component (D), and water, wherein: the component (A) comprises an internal olefin sulfonate (IO-1S) with 8 or more and 24 or less carbons in which a sulfonic acid group is present at position 2 or more and 4 or less and an internal olefin sulfonate (IO-2S) with 8 or more and 24 or less carbons in which a sulfonic acid group is present at position 5 or more, and (IO-1S)/(IO-2S), which is a mass ratio of a content of (IO-1S) to a content of (IO-2S) in the component (A), is 0.5 or more and 6.5 or less and wherein (B)/(A), which is a mass ratio of a content of the component (A) and a content of the component (B), is 0.01 or more and 2 or less. ### Claim 5 (depends on 1) The disinfectant composition according to claim 1, wherein (B)/(A), which is a mass ratio of a content of the component (A) and a content of the component (B), is 0.05 or more and 1 or less. ### Claim 6 (depends on 1) The disinfectant composition according to claim 1, wherein the component (A) has 16 or more and 18 or less carbons. ### Claim 7 (depends on 3) The disinfectant composition according to claim 3, wherein the component (D) is one or more nonionic surfactants selected from the group consisting of an alkyl glycoside having an alkyl group with 8 or more and 18 or less carbons, an alkyl polyglycoside having an alkyl group with 8 or more and 18 or less carbons, and a polyoxyalkylene alkyl ether having an alkyl group with 8 or more and 18 or less carbons. ### Claim 8 (depends on 1) The disinfectant composition according to claim 1, which has a pH of 7 or less at 20° C. ### Claim 9 (depends on 1) A method for disinfection, the method comprising: bringing the disinfectant composition according to claim 1 as a raw solution or after dilution with water into contact with a target object containing a fungus. ### Claim 10 (depends on 9) The method according to claim 9, wherein the target object is a hard surface. ### Claim 11 (depends on 9) The method according to claim 9, wherein the fungus is Escherichia coli. ### Claim 12 (depends on 1) A method for producing the disinfectant composition according to claim 1, the method comprising mixing: the component (A); the component (B); and water.