Azeotrope-like compositions and their use
    41.
    发明授权
    Azeotrope-like compositions and their use 有权
    类似共沸物的组合物及其用途

    公开(公告)号:US06426327B1

    公开(公告)日:2002-07-30

    申请号:US09783359

    申请日:2001-02-14

    IPC分类号: C11D726

    摘要: 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).

    摘要翻译: 本发明提供了基本上由RfOCH 3组成的类共沸组合物,其中Rf是具有4个碳原子的支链或直链全氟烷基,以及一种或多种选自直链,支链和环状的有机溶剂 含有6-8个碳原子的烷烃; 含有4-6个碳原子的环状和非环状醚; 具有3个碳原子的酮; 含有1,3或4个碳原子的氯代烷烃; 含有2个碳原子的氯化烯烃,含有1至4个碳原子的醇,含2-3个碳原子的部分氟化醇,1-溴丙烷,乙腈,HCFC 225ca(1,1,1-二氯-2,2,3,3,3 五氟丙烷和HCFC-225cb(1,3-二氯-1,1,2,2,3-五氟丙烷)。

    1,1,2,2,3,3,4,4-octaflourobutane compositions
    43.
    发明授权
    1,1,2,2,3,3,4,4-octaflourobutane compositions 失效
    1,1,2,2,3,3,4,4-八氟丁烷组合物

    公开(公告)号:US5705471A

    公开(公告)日:1998-01-06

    申请号:US606241

    申请日:1996-02-23

    摘要: Compositions of 1,1,2,2,3,3,4,4-octafluorobutane and a hydrocarbon having from 3 to 7 carbon atoms are described. Specific examples include 1,1,2,2,3,3,4,4-octafluorobutane and butane, cyclopropane, isobutane, propane, cyclopentane, 2,2-dimethylbutane, 2-methylbutane, cyclohexane, 2,3-dimethylpentane, 3-ethylpentane, heptane, hexane, methylcyclopentane, 2-methylpentane or 3-methylpentane. Compositions of 1,1,2,2,3,3,4,4-octafluorobutane and ethyl formate, propylene oxide, bis(pentafluoroethyl)sulfide, dimethoxyethane or tetrahydrofuran are also described. The compositions described above, may be azeotropic or azeotrope-like, and may be used as refrigerants, cleaning agents, expansion agents, for polyolefins and polyurethanes, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.

    摘要翻译: 描述了1,1,2,2,3,3,4,4-八氟丁烷的组成和具有3至7个碳原子的烃。 具体实例包括1,1,2,2,3,3,4,4-八氟丁烷和丁烷,环丙烷,异丁烷,丙烷,环戊烷,2,2-二甲基丁烷,2-甲基丁烷,环己烷,2,3-二甲基戊烷,3 乙基戊烷,庚烷,己烷,甲基环戊烷,2-甲基戊烷或3-甲基戊烷。 还描述了1,1,2,2,3,3,4,4-八氟丁烷和甲酸乙酯,环氧丙烷,双(五氟乙基)硫醚,二甲氧基乙烷或四氢呋喃的组合物。 上述组合物可以是共沸的或类共沸的,并且可以用作制冷剂,清洁剂,膨胀剂,聚烯烃和聚氨酯,气溶胶推进剂,传热介质,气体电介质,灭火剂,动力循环工作流体, 聚合介质,微粒去除液,载体流体,抛光研磨剂或置换干燥剂。