Composition based on 1,1-dichloro-1-fluoroethane,
1,1,1,3,3-pentafluorobutane and methanol, for cleaning and/or drying
solid surfaces
    9.
    发明授权
    Composition based on 1,1-dichloro-1-fluoroethane, 1,1,1,3,3-pentafluorobutane and methanol, for cleaning and/or drying solid surfaces 失效
    用于清洁和/或干燥固体表面的基于1,1-二氯-1-氟乙烷,1,1,1,3,3-五氟丁烷和甲醇的组合物

    公开(公告)号:US5268120A

    公开(公告)日:1993-12-07

    申请号:US876265

    申请日:1992-04-30

    申请人: Pascal Michaud

    发明人: Pascal Michaud

    摘要: To replace the cleaning compositions based on 1,1,2-trichloro-1,2,2-trifluoroethane (F113), the invention proposes a composition comprising, on a weight basis, 60 to 90% of 1,1-dichloro-1-fluoroethane (F141b), 9 to 33% of 1,1,1,3,3-pentafluorobutane (F365 mfc) and 1 to 7% of methanol. These three compounds form a positive azeotrope (b.p.=29.1.degree. C. at normal pressure).The composition, optionally stabilized, can be employed for the cleaning and/or drying of solid surfaces, in particular for the defluxing of printed circuits and for the degreasing of mechanical components.

    摘要翻译: 为了更换基于1,1,2-三氯-1,2,2-三氟乙烷(F113)的清洁组合物,本发明提出一种组合物,其以重量计包含60至90%的1,1-二氯-1 (F141b),9〜33%的1,1,1,3,3-五氟丁烷(F365mfc)和1〜7%的甲醇。 这三种化合物形成正共沸物(常压下沸点= 29.1℃)。 任选地稳定的组合物可用于固体表面的清洁和/或干燥,特别是用于印刷电路的去焊和用于机械部件的脱脂。