TH9689A - A binary aceotrophic mixture of hexafluoropropylene-ethylene cyclic dimer with methanol or ethanol. - Google Patents

Abstract

An acetotrophic mixture of hexafluoropropylene/ethylene cyclic dimer with methanol or ethanol. This acetotrophic mixture is useful as a cleaning agent, foaming agent, refrigerant, aerosol, propellant, heat transfer medium, and liquid in power circuits.

Claims (18)

1. An acetotropic mixture consisting of (a) approximately 82–92 percent by weight hexafluoropropylene/ethylene cyclic dimer, and approximately 8–18 percent by weight methanol, or (b) approximately 82–92 percent by weight hexafluoropropylene/ethylene cyclic dimer, and approximately 8–18 percent by weight ethanol. 2. An acetotrophic mixture of claim 1, the principal component of which is approximately 82-92 percent by weight of hexafluoropropylene/ethylene cyclic dimer, and approximately 8-18 percent by weight of methanol. 3. An acetotrophic mixture of claim 1, the principal components of which are approximately 82-92 percent by weight of hexafluoropropylene/ethylene cyclic dimer and approximately 8-18 percent by weight of ethanol. 4. An acetotrophic mixture of claim 2, the principal component of which is approximately 87.5 percent by weight of hexafluoropropylene cyclic dimer and approximately 12.5 percent by weight of methanol. 5. An aceotropic mixture of claim 4, which has a boiling point of approximately 5304°C at atmospheric pressure. 6. An acetotrophic mixture of claim 3, the principal component of which is approximately 7 percent by weight of hexafluoropropylene/ethylene cyclic dimer and approximately 12.3 percent by weight of ethanol. 7. An aceotropic mixture of claim 6, which has a boiling point of approximately 61.0°C at atmospheric pressure. 8. Procedure for cleaning solid surfaces consisting of the application of the acetotrophic mixture of the aforementioned compounds to the surface. 9. The procedure of claim 8, where the solid surface is an electrical circuit board containing flux and a substance containing flux. 10. The procedure of claim number 9, where the solid surface is metal. 11. An acetotrophic mixture of claim 1, the principal components of which are (a) approximately 86–89 percent by weight hexafluoropropylene/ethylene cyclic dimer, and approximately 10–15 percent by weight methanol, or (b) approximately 10–15 percent by weight exafluoropropylene/ethylene cyclic dimer. 12. A refrigeration process consisting of evaporation of the mixture of claim 1 in the area of the coolant. 13. The heating process which involves the incorporation of the mixture of the substance described in claim 1 into the heated area. 14. A procedure for the preparation of polymer foams comprising polymer expansion with a flue, the advantage of which the flue is a mixture of the compounds of Patent 1. 15. In an aerosol mixture containing a propellant and an active ingredient, the advantage of which is the propellant is the mixture of the claims of Patent 1. 16. A procedure for preparing an aerosol formulation consisting of a substance to be incorporated into the aerosol container with the mixture of the substance of Patent 1, which shall act as a propellant in an amount that produces the effect. 17. A mixture of claim number 1 consisting of hexafulpropylene/ethylene vicric dimer with methanol or ethanol. 18. A mixture of the aforementioned claim, which is fractionally distilled to obtain an aceotropic mixture containing only hexafluoropropylene/ethylene cyclic dimer and ethanol or ethanol in at least one layer (Clause 18, page 2, - Figure).