# US 11,440,919 B2 · C5 sugar based gelators for oil spills > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,440,919 B2 - Document ID: US11440919B2 - Status: Granted - Kind: B2 - Application number: 16/312,416 - Filed: 2016-12-02 - Published: 2019-08-08 - Granted: 2022-09-13 - Earliest claimed: 2016-06-30 - Assignees: Hindustan Petroleum Corporation Limited - Applicants: Hindustan Petroleum Corporation Ltd. - Inventors: Raman Ravishankar; Chinthalapati Siva Kesava Raju; Bhaskar Pramanik; Peddy Venkat Chalapathi Rao; Venkateswarlu Choudary Nettem; Gandham Sriganesh - Web page: https://patentgrep.com/patent/US11440919B2 ## CPC - C07D 493/04: Ortho-condensed systems - B01J 20/28047: {Gels} - C02F 1/285: {using synthetic organic sorbents} - C02F 1/681: {by addition of solid materials for removing an oily layer on water} - C09K 3/32: for absorbing liquids to remove pollution, e.g. oil, gasoline, fat - E02B 15/04: Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials ({stopping water-borne material in artificial water canals E02B5/085; stopping water-borne material at barrages or weirs E02B8/023}; other treatment of water, waste water or sewage C02F; materials for treating liquid pollutants, e.g. oil, gasoline, fat, C09K3/32 {; separation of oil in sewage conduits E03F5/16}) - C02F 2101/32: Hydrocarbons, e.g. oil - C02F 2103/007: {Contaminated open waterways, rivers, lakes or ponds} - C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08) - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - 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) - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - E02B: HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F) ## Abstract Sugar-based compounds are provided along with methods for making such compounds. Gels comprising such compounds are also provided along with methods of making gels. Methods of using such compounds for containing spill of a hydrocarbon, and method for reclaiming solvent from gels, comprising such compounds. ## Claims ### Claim 1 A formulation for containing a spill of a hydrocarbon, the formulation consisting of a compound of Formula I and a polar solvent, wherein the compound of Formula I is: wherein, R1 is selected from C1 to C6 alkyl; and R2 is selected from C1 to C6 alkyl. ### Claim 2 (depends on 1) The formulation as claimed in claim 1, wherein R1 and R2 are independently selected from C1 to C2 alkyl. ### Claim 3 (depends on 1) The formulation as claimed in claim 1, wherein the polar solvent is any of: a polar protic solvent and a polar aprotic solvent. ### Claim 4 (depends on 1) The formulation as claimed in claim 1, wherein the polar solvent is a polar protic solvent selected from the group consisting of formic acid, n-butanol, isopropanol, n-propanol, ethanol, methanol, acetic acid, ethylene glycol, propylene glycol and glycerin. ### Claim 5 (depends on 1) The formulation as claimed in claim 1, wherein the polar solvent is a polar aprotic solvent selected from the group consisting of dichloromethane, tetrahydrofuran, ethyl acetate, acetone, dimethylformamide, acetonitrile, pyridine, benzonitrile and dimethyl sulfoxide. ### Claim 6 A gel consisting of a compound of Formula I and a solvent, wherein the compound of Formula I is: wherein, R1 is selected from C1 to C6 alkyl; and R2 is selected from C1 to C6 alkyl, and wherein the solvent is a hydrocarbon or a mixture of hydrocarbon and water. ### Claim 7 A method for containing a spill of a hydrocarbon, the method comprising contacting the hydrocarbon with a formulation consisting of a compound of Formula I and a polar solvent, wherein the compound of Formula I is: wherein, R1 is selected from C1 to C6 alkyl; and R2 is selected from C1 to C6 alkyl. ### Claim 8 (depends on 7) The method as claimed in claim 7, wherein the polar solvent is selected from any of: a polar protic solvent and a polar aprotic solvent. ### Claim 9 (depends on 7) The method as claimed in claim 7, wherein the polar solvent is a polar protic solvent selected from the group consisting of formic acid, n-butanol, isopropanol, n-propanol, ethanol, methanol, acetic acid, ethylene glycol, propylene glycol and glycerin. ### Claim 10 (depends on 7) The method as claimed in claim 7, wherein the polar solvent is a polar aprotic solvent selected from the group consisting of dichloromethane, tetrahydrofuran, ethyl acetate, acetone, dimethylformamide, acetonitrile, pyridine, benzonitrile and dimethyl sulfoxide.