摘要:
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
摘要翻译: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 还提供流体
摘要:
A hydrofluoroether compound comprises two terminal, independently fluoroalkyl or perfluoroalkyl groups and an intervening oxytetrafluoroethylidene moiety (—OCF(CF3)—) bonded through its central carbon atom to an alkoxy- or fluoroalkoxy-substituted fluoromethylene moiety (—CF(OR)—), each of the terminal groups optionally comprising at least one catenated heteroatom.
摘要:
The present disclosure provides a compound according to the formula: Rf1[CH(—O—CH(3-m)Rf2m)(—O—CF2—CFH—Rf3)]n [I] wherein n is 1 or 2, wherein m is 1, 2 or 3, wherein, when n is 1, Rf1 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, Rf1 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 Rf2 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 Rf2 is highly fluorinated; wherein each Rf3 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.
摘要:
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
摘要翻译: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 还提供流体
摘要:
A method of making a fluorinated ether includes combining, in a polar aprotic solvent: a fluorinated alcohol represented by the formula X—Rf1CH2OH, and a fluorinated sulfonate ester represented by the formula Rf2CH2OS(═O)2Rf3, and base; and obtaining a fluorinated ether represented by the formula Y—Rf1CH2OCH2Rf2—Y. Rf1 is selected from perfluorinated C1-C10 alkylene groups having from 1 to 10 carbon atoms and partially fluorinated C1-C10 alkylene groups, and derivatives thereof having catenated heteroatom(s). X represents H, F, or an HOCH2— group. Rf2 is selected from perfluorinated C1-C10 alkyl groups and partially fluorinated C1-C10 alkyl groups, and derivatives thereof having catenated heteroatom(s). Rf3 is a C1-C4 alkyl group. Y represents H, F, or an Rf2CH2OCH2— group. A variant method, useful for preparing symmetric fluorinated ethers, is also disclosed. The present disclosure also provides fluorinated ethers preparable according to the methods. Use of fluorinated ethers in various applications is also disclosed.
摘要:
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: Rf—O—Rh—O—Rf′ wherein O is oxygen; Rf and Rf′ are, independently, a fluoroaliphatic group, wherein each Rf and Rf′ contain 1 hydrogen atom; Rh 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—CH2—O—. Another embodiment of the present invention is a method therefor.
摘要翻译:本发明提供了一种包括装置和用于传热的机构的装置,其包括氢氟醚传热流体,其中传热流体由以下结构表示:<?在线公式描述=“在线公式”结束 =“lead”?> R u> u> u> u> u>在线公式描述=“在线公式 “end =”tail“?>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' 含有1个氢原子; R h独立地是具有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 -O-。 本发明的另一个实施方案是其方法。
摘要:
A fluorochemical ketone compound consists of two terminal, branched, independently fluoroalkylcarbonyl or perfluoroalkylcarbonyl groups and an intervening linear perfluoropolyether segment, each of the terminal groups optionally comprising at least one catenated heteroatom, and the perfluoropolyether segment consisting essentially of at least one tetrafluoroethyleneoxy moiety and, optionally, at least one difluoromethyleneoxy moiety, the moieties being randomly or non-randomly distributed within the perfluoropolyether segment.
摘要:
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: Rf—O—Rh—O—Rf′ wherein: O is oxygen; Rf and Rf′ are, independently, a fluoroaliphatic group, wherein each Rf and Rf′ contain 1 hydrogen atom; Rh 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—CH2—O—. Another embodiment of the present invention is a method therefor.
摘要翻译:本发明提供了一种包括装置和用于传热的机构的装置,其包括氢氟醚传热流体,其中传热流体由以下结构表示:<?在线公式描述=“在线公式”结束 =“lead”?> R u> u> u> u> u>在线公式描述=“在线公式 “end =”tail“?>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' 含有1个氢原子; R h独立地是具有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 -O-。 本发明的另一个实施方案是其方法。
摘要:
The present invention comprises a compound represented by the following structure: Rf—O—Rh—O—Rf′ wherein: O is oxygen; Rf and Rf′ are, independently, a perfluoroaliphatic group; and Rh 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—CH2—O—. Another embodiment is an apparatus comprising a device and a mechanism for heat transfer comprising a hydrofluoroether heat-transfer fluid.Another embodiment of the present invention is a method for heat transfer.
摘要翻译:本发明包括由以下结构表示的化合物:<?in-line-formula description =“In-line Formulas”end =“lead”?> R u> u> u>在线公式描述=“在线公式”end =“tail”?>其中:O是氧; R f和R f'独立地是全氟脂族基团; 且R h H独立地是具有2至约8个碳原子和至少4个氢原子的直链,支链或环状的亚烷基,并且其中所述氢氟醚化合物不含-O-CH 2 -O-。 另一个实施方案是一种装置,其包括装置和用于传热的机构,其包括氢氟醚传热流体。 本发明的另一个实施方案是一种热传递方法。
摘要:
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.