Isopropanol blended with aqueous ethanol for flame coloration without use of salts or hazardous solvents
July 8, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod for treating an aqueous ethanol mixture Fuel composition Fuel gel for charcoal or wood fires Methanol fuel mixture Method and apparatus for producing a wood-like flame appearance from a fireplace-type gas burner Colored flame solid fuel and method Candles with colored flames Methanol fuel containing flame luminosity agent Methanol fuel containing flame luminosity agent Patent #: 5266080 InventorAssigneeApplicationNo. 889339 filed on 07/08/1997US Classes:44/452, Mixture of alkanols44/642FLAME COLORANT COMPOSITIONExaminersPrimary: McAvoy, Ellen M.Attorney, Agent or FirmForeign Patent References
International ClassC10L 001/18AbstractA method for enhancing the visibility of a flame produced during free-burning of an aqueous alcohol-based fuel composition in air. The fuel composition is substantially free of skin-irritants, corrosive salts and agents which, when burned in air, produce air pollution evidenced by the production of volatile organic compounds. The fuel includes between approximately 10% and 30% by volume of water, and between approximately 70% and 90% by volume of a mixture of alcohols including ethanol and isopropanol, the ethanol constituting between approximately 24% and 83% by volume of the fuel composition. The method includes providing an amount of isopropanol ranging between approximately 7% and 60% by volume of the fuel composition, in which the volume ratio of isopropanol to ethanol in the fuel does not exceed 2:1. | |
