Aerosol propellant compositions
Patent 4174295 Issued on November 13, 1979. Estimated Expiration Date: 
August 9, 1997. 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.
August 9, 1997. 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 References 2908650 3073794 3233791 3583921 3655865 InventorsAssigneeApplicationNo. 05/823152 filed on 08/09/1977US Classes:516/8, The continuous phase contains a propellant derived from non-gaseous phase (e.g., liquified propellant, such as hydrocarbon, halogenated hydrocarbon, dimethylether; sorbed or dissolved CO2)252/364, SOLVENTS424/45, Organic pressurized fluid424/47, Topical live body grooming or adorning aid (e.g., hair spray, antiperspirant, etc.)516/8.1Precursor contains plural immiscible liquid phases (e.g., emulsion)ExaminersPrimary: Lovering, Richard D.Attorney, Agent or FirmInternational ClassC09K 3/30 (20060101)Foreign Application Priority Data1976-08-13 ITAbstractThe present invention concerns new propellant compositions for aerosols. More particularly, the present invention relates to propellant compositions for aerosols, characterized in that said compositions consist of a mixture of a chlorofluorocarbon or fluorocarbon (A) containing hydrogen and selected from the group consisting of CHClF2, CH2 F2 and CF3 --CH3, with a chlorofluorocarbon or fluorocarbon (B) containing hydrogen and selected from the group consisting of: CH2 ClF, CClF2 --CHClF, CF3 --CHClF, CHF2 --CClF2, CHClF--CHF2, CF3 --CH2 --Cl, CHF2 --CHF2, CF3 --CH2 F, CClF2 --CH3 and CHF2 --CH3. In addition to propellant A and propellant B, there may be included a hydrocarbon propellant so that a ternary propellant composition is provided. | |
