# US 8,465,780 B2 · Borate micro emulsion and method for making the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,465,780 B2 - Document ID: US8465780B2 - Status: Granted - Kind: B2 - Application number: 12/708,739 - Filed: 2010-02-19 - Published: 2010-06-17 - Granted: 2013-06-18 - Earliest claimed: 2006-11-16 - Assignees: Nisus Corporation - Applicants: Jeffrey Douglas Lloyd - Inventors: Jeffrey Douglas Lloyd - Web page: https://patentgrep.com/patent/US8465780B2 ## CPC - 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 59/14: Boron; Compounds thereof - C02F 1/76: with halogens or compounds of halogens {(C02F1/4674 takes precedence)} - C02F 1/505: {by oligodynamic treatment} - C02F 1/66: by neutralisation; pH adjustment (for degassing C02F1/20; using ion-exchange C02F1/42; for flocculation or precipitation of suspended impurities C02F1/52; for removing dissolved compounds C02F1/58) - C02F 2103/42: from bathing facilities, e.g. swimming pools - 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 - C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes) ## Abstract The specification discloses a borate microemulsion product. In one embodiment, the borate microemulsion includes from about 24 to about 32 weight percent emulsified sodium pentaborate; and from about 24 to about 32 weight percent particulate boric acid suspended therein. The microemulsion has a density of about 9.5 to about 10.5 pounds per gallon at about room temperature. In certain embodiments, the microemulsion has a viscosity of about 1200 to about 1520 at a temperature of from about 66° F. to about 70° F. In certain other embodiments, microemulsion has a viscosity of about 1000 to about 3000 at a temperature of from about 70° F. to about 75° F. ## Claims ### Claim 1 A method for making a borate microemulsion, the method comprising the steps of: mixing one part, by weight, acidic borate with from about 0.6 to about 1.4 parts, by weight, alkali borate and from about 1.5 to about 3 parts, by weight, water to form a first mixture; reacting the first mixture at a temperature of from about 32° F. to about 212° F. to provide a first reaction product which comprises emulsified sodium pentaborate; and mixing the first reaction product with an additional from about 0.5 to about 4 parts, by weight, acidic borate and from about 0.5 to about 2 parts, by weight, water to provide a second product which comprises emulsified sodium pentaborate and particulate boric acid suspended therein wherein the acidic borate comprises a borate selected from the group consisting of orthoboric acid, metaboric acid, boric oxide, and mixtures thereof and wherein the alkali borate comprises at least a sodium borate. ### Claim 2 (depends on 1) The method of claim 1, wherein the alkali borate comprises a borate selected from the group consisting of tincal, kernite, anhydrous sodium tetraborate, sodium tetraborate pentahydrate, sodium tetraborate decahydrate, and mixtures thereof. ### Claim 3 (depends on 1) The method of claim 1, wherein the alkali borate comprises at least ulexite. ### Claim 4 (depends on 1) The method of claim 1, wherein the second product comprises from about 18 to about 38 weight percent emulsified sodium pentaborate and from about 18 to about 38 weight percent particulate boric acid. ### Claim 5 (depends on 1) The method of claim 1, wherein the second product comprises about 10 weight percent elemental boron. ### Claim 6 (depends on 1) The method of claim 1, wherein the second product has a viscosity of from about 1000 to about 3000 centipoise at a temperature of from about 70° F. to about 75° F. ### Claim 7 (depends on 1) The method of claim 1, wherein the second product has a viscosity of from about 2000 to about 2800 centipoise at a temperature of from about 70° F. to about 75° F. ### Claim 8 (depends on 1) The method of claim 1, wherein the second product has a density of from about 9 to about 11 pounds per gallon at about room temperature. ### Claim 9 (depends on 1) The method of claim 1, wherein the second product has a pH of from about 6 to about 7.5. ### Claim 10 (depends on 1) The method of claim 1, wherein the second product has a pH of from about 6.5 to about 7. ### Claim 11 A method for making a borate microemulsion, the method comprising the steps of: mixing one part, by weight, boric acid with from about 0.6 to about 1.4 parts, by weight, sodium tetraborate and from about 1.5 to about 3 parts, by weight, water to form a first mixture; reacting the first mixture at a temperature of from about 40° F. to about 100° F. to provide a first reaction product which comprises emulsified sodium pentaborate; and mixing the first reaction product with an additional from about 0.5 to about 4 parts, by weight, boric acid and from about 0.5 to about 2 parts, by weight, water to provide a second product which comprises emulsified sodium pentaborate and particulate boric acid suspended therein. ### Claim 12 (depends on 11) The method of claim 11, wherein the sodium tetraborate comprises sodium tetraborate pentahydrate. ### Claim 13 (depends on 11) The method of claim 11, wherein the boric acid comprises orthoboric acid. ### Claim 14 (depends on 11) The method of claim 11, wherein the second product has a density of about 10.2 pounds per gallon at about room temperature. ### Claim 15 (depends on 11) The method of claim 11, wherein the second product has a pH of from about 6.7 to about 6.9. ### Claim 16 A method for making a borate microemulsion, the method comprising the steps of: mixing one part, by weight, alkali borate with from about 1 to about 15 parts, by weight, acidic borate and from about 1 to about 20 parts, by weight, water to form a mixture; and reacting the mixture at a temperature of from about 32° F. to about 212° F. to provide a reaction product which comprises emulsified sodium pentaborate and particulate boric acid suspended therein wherein the acidic borate comprises a borate selected from the group consisting of orthoboric acid, metaboric acid, boric oxide, and mixtures thereof and wherein the alkali borate comprises at least a sodium borate. ### Claim 17 (depends on 16) The method of claim 16, wherein the alkali borate comprises a borate selected from the group consisting of tincal, kernite, anhydrous sodium tetraborate, sodium tetraborate pentahydrate, sodium tetraborate decahydrate, and mixtures thereof. ### Claim 18 (depends on 16) The method of claim 16, wherein the alkali borate comprises at least ulexite. ### Claim 19 (depends on 16) The method of claim 16, wherein the reaction product comprises from about 18 to about 38 weight percent emulsified sodium pentaborate and from about 18 to about 38 weight percent particulate boric acid. ### Claim 20 (depends on 16) The method of claim 16, wherein the reaction product comprises about 10 weight percent elemental boron. ### Claim 21 (depends on 16) The method of claim 16, wherein the reaction is carried out in a mixing vessel with a recirculation loop. ### Claim 22 (depends on 1) The method of claim 1, wherein the alkali borate further comprises a borate selected from the group consisting of potassium borates, lithium borates, and mixtures thereof. ### Claim 23 (depends on 16) The method of claim 16, wherein the alkali borate further comprises a borate selected from the group consisting of potassium borates, lithium borates, and mixtures thereof.