Abstract:
Fire extinguishing compositions and methods for extinguishing, controlling, or preventing fires are described wherein the extinguishing agent is a fluorinated ketone having up to two hydrogen atoms, alone, or in admixture with a co-extinguishing agent selected from hydrofluorocarbons, hydrochlorofluorocarbons, perfluorocarbons, perfluoropolyethers, hydrofluoroethers, hydrofluoropolyethers, chlorofluorocarbons, bromofluorocarbons, bromochlorofluorocarbons, iodofluorocarbons, hydrobromofluorocarbons, and mixtures thereof.
Abstract:
The invention provides azeotrope-like compositions consisting essentially of RfOCH3, where Rf is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and one or more organic solvent(s) selected from the group consisting of: straight chain, branched chain and cyclic alkanes containing 6 to 8 carbon atoms; cyclic and acyclic ethers containing 4 to 6 carbon atoms; ketones having 3 carbon atoms; chlorinated alkanes containing 1, 3 or 4 carbon atoms; chlorinated alkenes containing 2 carbon atoms, alcohols containing 1 to 4 carbon atoms, partially fluorinated alcohols containing 2 to 3 carbon atoms, 1-bromopropane, acetonitrile, HCFC 225ca (1,1,-dichloro-2,2,3,3,3 pentafluoropropane and HCFC-225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane).
Abstract:
The invention provides azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluorobutane and a fluorinated ketone, RfC(O)CF(CF3)2, where Rf is CF3CF2, CF3CF2CF2, or (CF3)2CF.
Abstract:
The invention provides azeotrope-like compositions consisting essentially of R.sub.f OC.sub.2 H.sub.5, where R.sub.f is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and an organic solvent selected from the group consisting of: straight chain, branched chain and cyclic alkanes having 6 to 8 carbon atoms; esters having 4 carbon atoms; ketones having 4 carbon atoms; disiloxanes having 6 carbon atoms; cyclic and acyclic ethers having 4 to 6 carbon atoms; chlorinated alkanes having 3 to 4 carbon atoms and chlorinated alkenes having 2 carbon atoms. The compositions are useful for cleaning, as solvents or carriers for coating and as heat transfer materials.
Abstract:
Foamable compositions comprise (a) at least one normally liquid, unsaturated perfluorochemical blowing agent compound selected from the group consisting of perfluoroolefin compounds, e.g., perfluoro(4-methylpent-2-ene), perfluoroaromatic compounds, e.g., hexafluorobenzene, and perfluorocycloolefin compounds, e.g., perfluorocyclohexene, the perfluoroolefin compounds optionally containing one or more catenary heteroatoms; and (b) at least one foamable polymer or the precursors of at least one foamable polymer. The compositions are useful in preparing polymeric, e.g., polyurethane, foams.
Abstract:
A blowing agent emulsion comprising a blowing agent mixture, such that the mixture comprises (1) one or more low boiling, hydrochlorocarbons, (2) one or more low boiling chlorine-free perfluorinated compound, and (3) optionally, one or more low boiling, hydrochlorofluorocarbons, one or more low boiling, hydrofluorocarbons, one or more low boiling hydrocarbons, or mixtures thereof; a foamable polymerizable reaction mixture, and a fluorochemical surfactant, optionally, a silicone surfactant, and a catalyst; a foamed plastic; and a process for making thereof.
Abstract:
Foamable compositions are provided that include at least one blowing agent, at least one foamable polymer or a precursor composition thereof, and a nucleating agent. The nucleating agent includes a fluorinated oxirane which, in some embodiments, can have up to a maximum of three hydrogen atoms. The fluorinated oxiranes can have a total of from about 2 to about 12 carbon atoms. Also provided is a process for preparing a polymeric foam and a composition that includes a blowing agent and a nucleating agent comprising a fluorinated oxirane.
Abstract:
Compositions are provided that include blends that consist essentially of 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane, trans-1,2-dichloroethylene, and a third component. The third component is selected from methanol, ethanol, isopropanol, t-butanol, and 1-propanol. The blends form ternary azeotropes. Provided compositions can be useful for cleaning electronic parts, as coating solvent components, as heat transfer fluids, and as lubricants.
Abstract:
Use of high boiling hydrofluoroethers as nucleating agents in the production of a polymeric foam, in particular in the production of polyurethane foams and phenolic foams. Also, blowing agent compositions and foamable compositions comprising one or more high boiling hydrofluoroether nucleating agents and foams made using such blowing agent compositions and foamable compositions.