# US 10,440,949 B2 · Aqueous agrochemical suspension composition and dispersal method therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,440,949 B2 - Document ID: US10440949B2 - Status: Granted - Kind: B2 - Application number: 15/778,000 - Filed: 2016-11-28 - Published: 2018-11-22 - Granted: 2019-10-15 - Earliest claimed: 2015-11-30 - Assignees: Kumiai Chemical Industry Co., Ltd.; Nippon Soda Co., Ltd. - Applicants: Kumiai Chemical Industry Co., Ltd.; Nippon Soda Co., Ltd. - Inventors: Yuichiro Ohta; Toshinobu Yamazaki - Web page: https://patentgrep.com/patent/US10440949B2 ## CPC - A01N 25/04: Dispersions, {emulsions, suspoemulsions, suspension concentrates} or gels (foams A01N25/16) - A01N 25/00: Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application {, e.g. seed treatment or sequential application}; Substances for reducing the noxious effect of the active ingredients to organisms other than pests - A01N 25/30: characterised by the surfactants - A01N 47/12: containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring - A01N 47/10: Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof - 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 ## Abstract The present invention is an aqueous suspension agrochemical composition characterized by containing pyribencarb which is an agrochemically active component, a polyacrylic acid salt, a surfactant, a thickener, and water. The present invention is a method for aerial spraying of an aqueous suspension agrochemical composition, which comprises spraying a diluted solution onto agricultural land or non-agricultural land at an amount of 8 to 32 kg/ha from an aircraft equipped with an agricultural preparation spraying function, the diluted solution being prepared by diluting the aqueous suspension agrochemical composition in water for spraying in an amount of 31 times or less the total amount of the composition on mass basis. ## Claims ### Claim 1 An aqueous suspension agrochemical composition comprising pyribencarb as an agrochemically active component, a polyacrylic acid salt, a surfactant, a thickener, and water, wherein the viscosity of the composition at 20° C. is 200 to 700 mPa·s as measured with a B-type viscometer at rotation speed of 30 rpm. ### Claim 2 (depends on 1) The aqueous suspension agrochemical composition according to claim 1, wherein the blending ratio of the pyribencarb is 5 to 40% by mass based on the total amount of the composition. ### Claim 3 (depends on 1) The aqueous suspension agrochemical composition according to claim 1, wherein the molecular weight of the polyacrylic acid salt is 2,500 to 10,000. ### Claim 4 (depends on 1) The aqueous suspension agrochemical composition according to claim 1, wherein the molecular weight of the polyacrylic acid salt is 4,000 to 6,000. ### Claim 5 (depends on 1) The aqueous suspension agrochemical composition according to claim 1, wherein the polyacrylic acid salt is sodium polyacrylate. ### Claim 6 (depends on 1) The aqueous suspension agrochemical composition according to claim 1, wherein the blending ratio of the polyacrylic acid salt is 0.1 to 10% by mass based on the total amount of the composition. ### Claim 7 (depends on 1) The aqueous suspension agrochemical composition according to claim 1, which does not contain a water-insoluble organic solvent. ### Claim 8 (depends on 1) The aqueous suspension agrochemical composition according to claim 1, wherein the viscosity at 20° C. is 250 to 650 mPa·s as measured with a B-type viscometer at rotation speed of 30 rpm. ### Claim 9 (depends on 1) The aqueous suspension agrochemical composition according to claim 1, which is an agrochemical preparation for aerial spraying. ### Claim 10 (depends on 1) A method for aerial spraying the aqueous suspension agrochemical composition according to claim 1, comprising diluting the aqueous suspension agrochemical composition in water for spraying in an amount 31 times or less of the total amount of the composition on mass basis to obtain a diluted solution, and applying the diluted solution on agricultural land or non-agricultural land at 8 to 32 kg/ha using an aircraft having an agrochemical preparation spraying function. ### Claim 11 (depends on 10) The method for spraying the aqueous suspension agrochemical composition according to claim 10, wherein the water for spraying is water or an aqueous medium in which a predetermined amount of a spreading agent and/or another agrochemical preparation is dissolved in water. ### Claim 12 (depends on 10) The method for spraying the aqueous suspension agrochemical composition according to claim 10, wherein the molecular weight of the polyacrylic acid salt is 2,500 to 10,000. ### Claim 13 (depends on 10) The method for spraying the aqueous suspension agrochemical composition according to claim 10, wherein the molecular weight of the polyacrylic acid salt is 4,000 to 6,000. ### Claim 14 (depends on 10) The method for spraying the aqueous suspension agrochemical composition according to claim 10, wherein the polyacrylic acid salt is sodium polyacrylate. ### Claim 15 (depends on 10) The method for spraying the aqueous suspension agrochemical composition according to claim 10, wherein the concentration of the polyacrylic acid salt in the diluted solution is 100 to 5,000 ppm.