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:
A moisture-curable polysiloxane composition consists essentially of (a) at least one polyorganosiloxane, fluorinated polyorganosiloxane, or combination thereof comprising reactive silane functionality comprising at least one hydrosilyl moiety; and (b) at least one base selected from amidines, guanidines, phosphazenes, proazaphosphatranes, and combinations thereof; wherein the curable composition is non-foaming and has an average condensation-curable, reactive silane functionality greater than two.
Abstract:
An electrolyte composition includes (a) a solvent composition including at least one hydrofluoroether compound, the hydrofluoroether compound including two terminal fluoroalkyl groups and an intervening substituted or unsubstituted oxymethylene group, each of the fluoroalkyl groups including only one hydrogen atom and, optionally, at least one catenated (that is, in-chain) heteroatom, with the proviso that, when the oxymethylene group is unsubstituted, at least one of the terminal fluoroalkyl groups is branched and/or includes at least one catenated heteroatom; and (b) at least one electrolyte salt.
Abstract:
A coating composition comprising fluoroalkyl (meth)acrylate/(meth)acrylic acid copolymer is disclosed, wherein said copolymer comprises 5 wt.% or less (meth)acrylic acid and said fluoroalkyl group has 6 carbon atoms or fewer. The compositions are useful as anti-stiction coating for computer hard drives, barrier coatings to protect sensitive substrates such as circuit boards, and as antimigration coatings to prevent the migration of lubricants.
Abstract:
Described is a compound having at least one acrylate monomer, said monomer including at least one pendant group of the structure -O-CH(Rf)(Rf' ), wherein Rf is a straight chain or branched perfluoroalkyl group with five or less carbon atoms, and Rf' is a branched perfluoroalkyl group with three to five carbon atoms; and a method of reducing the surface tension of a liquid by adding a compound of the invention to the liquid. Also described is a composition that includes a compound of the invention in an aqueous solution or dispersion; a method of treating a substrate to render it oil- and/or water-repellent that includes treating a substrate with a composition of the invention; a method of coating an electrical device that includes applying a composition of the invention; a method of coating optical fibers that includes applying a composition of the invention; and an article that includes a substrate treated with a composition of the invention.
Abstract:
An apparatus is provided that includes a device and a mechanism for heat transfer. The mechanism includes a hydrofluoroether heat-transfer fluid wherein the heat transfer fluid is represented by the following structure: Y-Rf-CH2OCH2Rf-Y wherein Rf may be the same or different and is, independently, selected from the group consisting of perfluorinated alkylene groups which may be linear, cyclic, or branched having from 1 to 10 carbon atoms, partially fluorinated alkylene groups having from 1 to 10 carbon atoms, and derivatives thereof wherein one or more carbon atoms are replaced by catenated nitrogen or oxygen heteroatoms, wherein each Rf contains at most one hydrogen atom, wherein Y represents H, F, or an RfCH2OCH2- group, and wherein the total number of carbon atoms in the molecule is at least 6. A method of transferring heat including the device and the provided heat-transfer fluid is also provided.
Abstract translation:提供一种装置,其包括装置和用于传热的机构。 该机理包括氢氟醚传热流体,其中传热流体由以下结构表示:Y-Rf-CH 2 OCH 2 R f-Y其中R f可以相同或不同,独立地选自全氟化亚烷基 其可以是具有1至10个碳原子的直链,环状或支链的,具有1至10个碳原子的部分氟化的亚烷基,以及其中一个或多个碳原子被连接的氮或氧杂原子代替的衍生物,其中每个Rf 含有至多一个氢原子,其中Y表示H,F或RfCH 2 OCH 2 - 基团,并且其中分子中的总碳原子数为至少6.一种传递热量的方法,包括该装置和所提供的传热 还提供了流体。
Abstract:
The present invention provides an apparatus comprising a device and a mechanism for heat transfer comprising a hydrofluoroether heat-transfer fluid wherein the heat transfer fluid is represented by the following structure:R f -O-R h -O-R f' wherein: O is oxygen; R f and R f' are, independently, a fluoroaliphatic group, wherein each Rf and R f' contain 1 hydrogen atom; R h is independently a linear, branched or cyclic alkylene group having from 2 to about 8 carbon atoms and at least 4 hydrogen atoms, and wherein the hydrofluoroether compound is free of -O-CH 2 -O-. Another embodiment of the present invention is a method therefor
Abstract translation:本发明提供了一种装置,其包括装置和用于传热的机构,其包括氢氟醚传热流体,其中传热流体由以下结构表示:R f -OR h 其中:O是氧; R f和R f'独立地是氟代脂族基团,其中每个R f和R f'包含1个氢原子; R h分别是具有2至约8个碳原子和至少4个氢原子的直链,支链或环状亚烷基,其中所述氢氟醚化合物不含-O-CH 2 SUB> -O-。 本发明的另一个实施方案是其方法
Abstract:
The present invention relates to optical elements comprising fluorochemical surface treatments. The invention further relates to materials such as retroreflective sheetings, pavement markings and beaded projection screens comprising a binder and the surface treated optical elements. The fluorochemical surface treatment is substantially free of perfluoroalkyl groups having more than four carbon atoms. Preferably, the surface treatment is a polyfluropolyether-based compound comprising at least one polar group or polar group-containing organic radical.
Abstract:
The present disclosure provides a compound according to the formula: Rf 1 [CH(-O-CH(3-m)Rf 2m)(-O-CF2-CFH-Rf 3)]n [I] wherein n is 1 or 2, wherein m is 1, 2 or 3, wherein, when n is 1, Rf 1 is selected from the group consisting of highly fluorinated alkyl groups which are linear, branched, cyclic, or a combination thereof, which may optionally be substituted, and which may optionally contain one or more catenated heteroatoms; wherein, when n is 2, Rf 1 is selected from the group consisting of highly fluorinated alkylene groups which are linear, branched, cyclic, or a combination thereof, which may optionally be substituted, and which may optionally contain one or more catenated heteroatoms; wherein each Rf 2 is independently selected from the group consisting of alkyl groups which are linear, branched, cyclic, or a combination thereof, which may optionally be substituted, and which may optionally contain one or more catenated heteroatoms; wherein at least one Rf 2 is highly fluorinated; wherein each Rf 3 is independently selected from the group consisting of fluorine and highly fluorinated alkyl groups which are linear, branched, cyclic, or a combination thereof, which may optionally be substituted, and which may optionally contain one or more catenated heteroatoms. Also provided are methods of use and manufacture of such compounds.