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    • 64. 发明申请
    • CLEANING AGENT, METHOD AND EQUIPMENT
    • 清洁剂,方法和设备
    • WO1996012571A1
    • 1996-05-02
    • PCT/JP1995002149
    • 1995-10-19
    • KABUSHIKI KAISHA TOSHIBATOSHIBA SILICONE CO., LTD.KUMAGAI, MasaruSHIMOZAWA, HiroshiOGUNI, NaoyukiINADA, MinoruSAITO, NobuhiroYAMAFUJI, ShigeoSHIMIZU, ChiyukiUMEHARA, Kazunori
    • KABUSHIKI KAISHA TOSHIBATOSHIBA SILICONE CO., LTD.
    • B08B03/08
    • H01L21/67005B08B3/08C11D7/28C11D7/5018C11D7/5095C11D11/0047C23G5/02803C23G5/032C23G5/04H05K3/26
    • A cleaning agent which can substitute for chlorofluorocarbon or chlorinated solvents, a method of cleaning therewith, and equipment therefor. In particular, a method of cleaning electronics parts such as printed boards or mounted parts or metallic parts which makes it possible to remove various contaminants from the parts and dry the same to the extent comparative to that of the method of cleaning with chlorofluorocarbon or chlorinated solvents, and a cleaning agent and equipment therefor. Examples of the cleaning agent include polar cleaning agents with a solubility parameter of 9 or above or a permittivity of 4 or above, mixtures thereof with other cleaning agents with a solubility parameter of less than 9 and a permittivity of less than 4, and cleaning agents containing as the active ingredient an azeotropic or pseudoazeotropic composition containing a low-molecular-weight siloxane compound. The cleaning method is characterized by comprising at least one step selected from the group consisting of the step of cleaning the object with a polar cleaning agent having a solubility parameter of 9 or above or a permittivity of 4 or above, the step of rinsing the object with a mixture of the above polar cleaning agent with another cleaning agent having a solubility parameter of less than 9 and a permittivity of less than 4, and the drying step.
    • 可替代氯氟烃或氯化溶剂的清洁剂,其清洗方法及其设备。 特别地,一种清洁诸如印刷板或安装部件或金属部件的电子部件的方法,其使得可以从部件中除去各种污染物并将其干燥至与用氯氟烃或氯化溶剂的清洁方法相当的程度 ,以及清洁剂及其设备。 清洁剂的实例包括溶解度参数为9或更高的介电常数为4或更高的极性清洁剂,其溶解度参数小于9,介电常数小于4的其它清洁剂的混合物,以及清洁剂 作为活性成分含有含有低分子量硅氧烷化合物的共沸或假性组合物。 清洗方法的特征在于包括至少一个步骤,所述步骤选自用溶解度参数为9或更高的极性清洁剂或介电常数为4或更高的清洁物体的步骤,冲洗物体的步骤 与上述极性清洗剂与溶解度参数小于9,介电常数小于4的另一种清洗剂的混合物,以及干燥步骤。
    • 65. 发明申请
    • OCTAFLUOROBUTANE COMPOSITIONS
    • OCTAFLUOROBUTANE组合物
    • WO1996010060A1
    • 1996-04-04
    • PCT/US1995011659
    • 1995-09-19
    • E.I. DU PONT DE NEMOURS AND COMPANY
    • E.I. DU PONT DE NEMOURS AND COMPANYMINOR, Barbara, Haviland
    • C09K05/04
    • C11D7/5018A62D1/0057C08J9/149C08J2203/142C08J2203/146C08J2207/04C09K3/30C09K5/045C09K2205/11C09K2205/112C09K2205/116C09K2205/22C09K2205/32C11D7/263C11D7/28C11D7/5063C11D7/5086C23G5/02803C23G5/032
    • The invention includes compositions of 1,2,2,3,3,4,4,4-octafluorobutane and bis(fluoromethyl) ether, 2,2,4,4-tetrafluorooxetane, 2,2,3,3-tetrafluorooxetane, 1-difluoromethoxy-1,1,2,2-tetrafluoroethane, 1-difluoromethoxy-1,2,2,2-tetrafluoroethane, 2,2,3,3,4,5,5-heptafluorotetrahydrofuran or 2,2,3,3,4,4,5-heptafluorotetrahydrofuran; 1,1,1,2,3,4,4,4-octafluorobutane and bis(fluoromethyl) ether, 2,2,4,4-tetrafluorooxetane, 2,2,3,3-tetrafluorooxetane, 1-difluoromethoxy-1,1,2,2-tetrafluoroethane, 1-difluoromethoxy-1,2,2,2-tetrafluoroethane, 2,2,3,3,4,5,5-heptafluorotetrahydrofuran, or 2,2,3,3,4,4,5-heptafluorotetrahydrofuran; 1,1,1,2,2,4,4,4-octafluorobutane and bis(fluoromethyl) ether, 2,2,4,4-tetrafluorooxetane or 2,2,3,3-tetrafluorooxetane; or 1,1,2,2,3,3,4,4-octafluorobutane and methyl tert-butyl ether, bis(fluoromethyl) ether or 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2,2-tetrafluoroethoxy)propane. These compositions, which may be azeotropic or azeotrope-like, 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.
    • 本发明包括1,2,2,3,3,4,4,4-八氟丁烷和双(氟甲基)醚,2,2,4,4-四氟氧杂环丁烷,2,2,3,3-四氟氧杂环丁烷,1 二氟甲氧基-1,1,2,2-四氟乙烷,1-二氟甲氧基-1,2,2,2-四氟乙烷,2,2,3,3,4,5,5-七氟四氢呋喃或2,2,3,3 ,4,4,5- heptafluorotetrahydrofuran; 1,1,1,2,3,4,4,4-八氟丁烷和双(氟甲基)醚,2,2,4,4-四氟氧杂环丁烷,2,2,3,3-四氟氧杂环丁烷,1-二氟甲氧基-1, 1,2,2-四氟乙烷,1-二氟甲氧基-1,2,2,2-四氟乙烷,2,2,3,3,4,5,5-七氟四氢呋喃或2,2,3,3,4,4 ,5- heptafluorotetrahydrofuran; 1,1,1,2,2,4,4,4-八氟丁烷和双(氟甲基)醚,2,2,4,4-四氟氧杂环丁烷或2,2,3,3-四氟氧杂环丁烷; 或1,1,2,2,3,3,4,4-八氟丁烷和甲基叔丁基醚,双(氟甲基)醚或1,1,1,2,2,3,3-七氟-3-( 1,2,2,2-四氟乙氧基)丙烷。 这些可以共沸或类共沸的组合物可用作制冷剂,清洁剂,聚烯烃和聚氨酯的膨胀剂,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。