摘要:
Partially fluorinated ketones are provided that include a terminal alkyl group having from 1 to 6 carbon atoms bonded to a carbonyl group and a hydrofluoroether moiety having from 2 to 4 carbon atoms that contains at least one hydrogen substituent. The hydrofluoroether moiety is bonded to the carbonyl group with a carbon-carbon bond. The ether oxygen is bonded to a carbon atom that is at least two carbon atoms removed from the carbonyl group. Additionally, a fluorinated alkyl group having from 1 to 10 carbon atoms is bonded to the ether oxygen of the hydrofluoroether moiety. These partially fluorinated ketones can be used in a wide variety of electronics applications.
摘要:
A fluorinated composition includes: a polyfluoropolyether silane represented by the formula: RfaO(CF(CF3)CF2O)pCF(CF3)CH2OZ1Si(Y1)3; and a polyfluoropolyether silane represented by the formula: Rfb[R5CH2OZ2Si(Y2)3]2 Rfa represents a perfluoroalkyl group having from 1 to 12 carbon atoms, optionally substituted with at least one catenated oxygen atom or —NR8— group, wherein R8 represents a perfluoroalkyl group; Z1 represents —R1SR2—, —R1S(═O)R2—, or —R1S(═O)2R2, wherein R1 and R2 independently represent alkylene groups having from 1 to 12 carbon atoms; each Y1 independently represents a hydrolyzable group; and p is a number in a range of from 3 to 50; Z2 independently represents —R3SR4—, —R3S(═O)R4—, or —R3S(═O)2R4, wherein R3 and R4 independently represent alkylene groups having from 1 to 12 carbon atoms; Y2 independently represents a hydrolyzable group; Rfb represents a perfluoroalkylene group having at least 3 carbon atoms, optionally substituted with at least one catenated oxygen atom or —NR6— group, wherein R6 represents a perfluoroalkyl group; R5 independently represents a covalent bond, or —(OR7)b—, and wherein R7 independently represents a branched perfluoroalkylene group, and b independently represents a number greater than or equal to one.
摘要:
An apparatus is provided that includes a device and a mechanism for heat transfer that includes a provided hydrofluoroether having high temperature stability. Also provided is a method of transferring heat and a composition that includes a provided hydrofluoroether.
摘要:
A fluorinated composition includes: a polyfluoropolyether silane represented by the formula: RfaO(CF(CF3)CF2O)pCF(CF3)CH2OZ1Si(Y1)3; and a polyfluoropolyether silane represented by the formula: Rfb[R5CH2OZ2Si(Y2)3]2 Rfa represents a perfluoroalkyl group having from 1 to 12 carbon atoms, optionally substituted with at least one catenated oxygen atom or —NR8— group, wherein R8 represents a perfluoroalkyl group; Z1 represents —R1SR2—, —R1S(═O)R2—, or —R1S(═O)2R2, wherein R1 and R2 independently represent alkylene groups having from 1 to 12 carbon atoms; each Y1 independently represents a hydrolyzable group; and p is a number in a range of from 3 to 50; Z2 independently represents —R3SR4—, —R3S(═O)R4—, or —R3S(═O)2R4, wherein R3 and R4 independently represent alkylene groups having from 1 to 12 carbon atoms; Y2 independently represents a hydrolyzable group; Rfb represents a perfluoroalkylene group having at least 3 carbon atoms, optionally substituted with at least one catenated oxygen atom or —NR6— group, wherein R6 represents a perfluoroalkyl group; R5 independently represents a covalent bond, or —(OR7)b—, and wherein R7 independently represents a branched perfluoroalkylene group, and b independently represents a number greater than or equal to one.
摘要:
Fluoroether diketones are provided that can be useful in apparatuses that includes a device and a mechanism for transferring heat. The provided fluoroether diketones are stable at temperatures above 175° C., are environmentally friendly, and are economical to produce. The provided apparatuses can be useful for vapor phase soldering of electronic devices.
摘要:
An apparatus is provided that includes a device and a mechanism for heat transfer that includes a provided hydrofluoroether having high temperature stability. Also provided is a method of transferring heat and a composition that includes a provided hydrofluoroether.
摘要:
A method for removing a fluorinated carboxylic acid or salt thereof from an aqueous liquid by contacting the aqueous liquid with adsorbent particles. The fluorinated carboxylic acid or salt thereof is selected from the group consisting of partially fluorinated carboxylic acids or salts thereof and fully fluorinated carboxylic acids or salts thereof.
摘要:
Provide are fluorinated cyclic and acyclic carbonate solvent compositions such as various fluorine substituted 1,3-dioxolane-2-one compounds and fluorine substituted 1,3-dioxane-2-one compounds, which are useful as electrolyte solvents for lithium ion batteries.
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:
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。