摘要:
Disclosed are compositions comprising 90 to 99 weight percent trans-1, 2-dichloroethylene, from 0.1 to 8 weight percent methylperfluoroheptene ethers and from 0.5 to 2.0 weight percent of a fluorocarbon selected from the group consisting of Z-1, 1, 1, 4, 4, 4-hexafluoro-2-butene, 1, 3, 4, 4, 4-pentafluoro-3-trifluoromethy-1-butene, 1, 1, 1, 4, 4, 5, 5, 5-octafluoro-2-pentene, perfluorobutyl methyl ether, perflurobutyl ethyl ether, perfluoroisopropylmethyl ether, perfluoroethyl isopropyl ketone, heptafluorocyclopentane, and E-1, 1, 1-trifluoro-3-chloro-2-propene, wherein the composition is non-flamable. The disclosure further provides a method for removing residue from a surface of an article comprising: (a) contacting the article with a composition comprising a composition of MPHE, trans-1, 2-dichloroethylene and a fluorocarbon selected from the group consisting of Z-1, 1, 1, 4, 4, 4-hexafluoro-2-butene, 1, 3, 4, 4, 4-pentafluoro-3-trifluoromethy-1-butene, 1, 1, 1, 4, 4, 5, 5, 5-octafluoro-2-pentene, perfluorobutyl methyl ether, perflurobutyl ethyl ether, perfluoroisopropylmethyl ether, perfluoroethyl isopropyl ketone, heptafluorocyclopentane, and E-1, 1, 1-trifluoro-3-chloro-2-propene; and (b) recovering the surface from the composition.
摘要:
A non-flammable ternary liquid cleaner is formulated from a first solvent that is a dichloroethylene, a second solvent that is a hydrofluorocarbon and a third solvent that is a fluoroketone having low flammability. The dichloroethylene is present in a concentration of at about 50 percent to about 60 percent by weight of the cleaner, the hydrofluorocarbon is present in a concentration of about 25 percent to about 35 percent by weight of the cleaner and the fluoroketone is present in a concentration of at about 13 percent to about 25 percent by weight of the cleaner.
摘要:
Disclosed are compositions comprising 90 to 99 weight percent trans-1,2-dichloroethylene, from 0.1 to 8 weight percent methylperfluoroheptene ethers and from 0.1 to 2.0 weight percent of 1,1,1,2,2,3,4,5,5,5-decafluoropentane, wherein the composition is non-flamable. The disclosure further provides a method for removing residue from a surface of an article comprising: (a) contacting the article with a composition comprising a composition of MPHE, HFC-4310mee and trans-1,2-dichloroethylene; and (b) recovering the surface from the composition.
摘要:
The present invention relates to compositions comprising perfluorobutyl ethylene, and at least one halocarbon, hydrof luorocarbon, or fluoroether. In one embodiment, these compositions are azeotropic or azeotrope-like. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils and/or other residues from a surface.
摘要:
The present invention relates to compositions comprising HFC-63-14mcee. The compositions may be azeotropic or azeotrope-like and are useful in cleaning applications, as a defluxing agent, for removing oils or residues from a surface, depositing or removing lubricants from a surface, and as refrigerants or heat transfer fluids in refrigeration systems, air-conditioners and heat pumps.
摘要:
Disclosed are binary azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and 1,1,1,2,3,4,4,5,5,5-decafluoropentane (HFC-43-10mee) or nonafluoromethoxybutane. The present invention further includes ternary or quaternary azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane and 1,1,1,2,3,4,4,5,5-decafluoropentane or nonafluoromethoxybutane, and additionally trans-1,2-dichloroethylene, n-propyl bromide, acetone, methanol, ethanol or isopropanol.
摘要:
Disclosed herein are solvent compositions and methods of using the solvent compositions. The solvent composition includes at least trans-1,2-dichloroethylene (t-DCE) and 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (TFE-TFPE). The solvent composition may also include an oxygenated solvent, such as an alcohol or fluorinated ether. A method of cleaning the surface of an article includes contacting the surface with the solvent composition to dissolve, disperse, or displace a contaminant on the surface, and removing the solvent composition containing the contaminant from the surface.
摘要:
An object of the present invention is to provide a new azeotrope-like composition that can be industrially used for a broad range of applications. An azeotrope-like composition, comprising a perfluoro heptene and an alcohol containing fluorine.
摘要:
Disclosed are azeotropic or azeotrope-like compositions containing Z-l,l,l,4,4,4-hexafluoro-2-butene and methyl perfluoropropyl ether. Also disclosed is a process of using the azeotropic or azeotrope-like composition as a blowing agent for preparing a thermoplastic or thermoset foam. Also disclosed is a process of using the azeotropic or azeotrope-like composition as a refrigerant for producing cooling or heating. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of using the azeotropic or azeotrope-like composition as a propellant for producing an aerosol. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.