Cleaning composition based on 1,1-dichloro-1-fluoroethane, methyl
formate and methanol
    4.
    发明授权
    Cleaning composition based on 1,1-dichloro-1-fluoroethane, methyl formate and methanol 失效
    基于1,1-二氯-1-氟代乙醇的清洁组合物,甲基丙烯酸甲酯

    公开(公告)号:US5152913A

    公开(公告)日:1992-10-06

    申请号:US651814

    申请日:1991-02-07

    CPC classification number: C23G5/02832 C11D7/5086

    Abstract: For replacing cleaning compositions based on 1,1,2-trichloro-1,2,2-trifluoroethane (F113), the invention provides a composition comprising 55 to 79.5% by weight of 1,1-dichloro-1-fluoroethane (F141b), 20 to 40% by weight of methyl formate and 0.5 to 5% of methanol. These three compounds form a positive azeotrope (b.p.=28.3.degree. C. at atmospheric pressure).The composition, which may be stabilized, can be used for cleaning solid surfaces, in particular for removing flux from printed circuits and for degreasing mechanical parts.

    Abstract translation: 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,本发明提供一种组合物,其包含55至79.5重量%的1,1-二氯-1-氟乙烷(F141b) ,20〜40重量%的甲酸甲酯和0.5〜5%的甲醇。 这三种化合物形成正共沸物(b.p。= 28.3℃,大气压)。 可稳定化的组合物可用于清洁固体表面,特别是用于从印刷电路上除去助焊剂和除去机械部件。

    Cleaning composition based on 1,1,1,2,2-pentafluoro-3,3-dichloropropane
and methyl tert-butyl ether
    5.
    发明授权
    Cleaning composition based on 1,1,1,2,2-pentafluoro-3,3-dichloropropane and methyl tert-butyl ether 失效
    基于1,1,1,2,2-二氟-3-三氯丙烷和甲基叔丁基醚的清洁组合物

    公开(公告)号:US5102563A

    公开(公告)日:1992-04-07

    申请号:US698021

    申请日:1991-05-10

    CPC classification number: C11D7/5086 C23G5/02851

    Abstract: For replacing cleaning compositions based on 1,1,2-trichloro-1,2,2-trifluoroethane (F113), the invention provides a composition comprising 55 to 80% by weight of 1,1,1,2,2-pentalfuoro-3,3-dichloropropane (225ca) and 20 to 45% by weight of methyl tert-butyl ether.These two compounds form a negative azeotrope (b.p.=59.9.degree. C. at atmospheric pressure).The composition, which may be stabilized, can be used for cleaning solid surfaces, in particular for removing flux from printed circuits and for degreasing mechanical parts.

    Abstract translation: 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,本发明提供一种组合物,其包含55至80重量%的1,1,1,2,2-二氟-1- 3,3-二氯丙烷(225ca)和20〜45%(重量)甲基叔丁基醚。 这两种化合物形成负共沸物(在大气压下沸点= 59.9℃)。 可稳定化的组合物可用于清洁固体表面,特别是用于从印刷电路上除去助焊剂和除去机械部件。

    Compositions for drying solid surfaces
    8.
    发明授权
    Compositions for drying solid surfaces 失效
    用于干燥固体表面的组合物

    公开(公告)号:US06841091B2

    公开(公告)日:2005-01-11

    申请号:US09034415

    申请日:1998-03-04

    Applicant: Pascal Michaud

    Inventor: Pascal Michaud

    CPC classification number: F26B5/005 B01D12/00 C09K3/18

    Abstract: A drying composition according to the invention is composed of a solution of a surface-active agent in a mixture of a fluorinated hydrocarbon and of a polyfluorinated alcohol of formula: Rf—(CH2)n—OH  (I) in which n is equal to 1 or 2 and Rf represents a linear perfluoroalkyl radical containing from 2 to 8 carbon atoms.

    Abstract translation: 根据本发明的干燥组合物由表面活性剂在氟化烃和下式的多氟化醇的混合物中的溶液组成:其中n等于1或2,Rf代表含有直链全氟烷基的 2至8个碳原子。

    Cleaning or drying compositions based on 1,1,1,2,3,4,4,5,5,5-decafluoropentane
    9.
    发明授权
    Cleaning or drying compositions based on 1,1,1,2,3,4,4,5,5,5-decafluoropentane 有权
    基于1,1,1,2,3,4,4,5,5,5-十氟戊烷的清洗或干燥组合物

    公开(公告)号:US06174850B1

    公开(公告)日:2001-01-16

    申请号:US09358257

    申请日:1999-07-20

    Applicant: Pascal Michaud

    Inventor: Pascal Michaud

    CPC classification number: C11D7/505 C23G5/02803

    Abstract: To replace compositions based on CFCs or CFHCs in applications for cleaning or drying solid surfaces (in particular defluxing), the invention proposes azeotropic or quasi-azeotropic compositions based on 1,1,1,2,3,4,4,5,5,5-decafluoropentane, 1,1,1,3,3-pentafluorobutane and, optionally, methanol.

    Abstract translation: 为了在用于清洁或干燥固体表面的应用(特别是脱焊)中替代基于CFC或CFHC的组合物,本发明提出了基于1,1,1,2,3,4,4,5,5的共沸或准共沸组合物 ,5-十氟戊烷,1,1,1,3,3-五氟丁烷和任选的甲醇。

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