Cleaning agent based on cycloalkanes
    1.
    发明授权
    Cleaning agent based on cycloalkanes 失效
    基于环烷烃的清洗剂

    公开(公告)号:US5954886A

    公开(公告)日:1999-09-21

    申请号:US945079

    申请日:1998-02-10

    CPC classification number: C23G5/024 C11D7/24 H05K3/26

    Abstract: The use of a mixture of cycloalkanes of general formula C.sub.n H.sub.2 (n+1-a) in which n is an integer ranging from 8 to 12 and a represents the number of rings as agent for cleaning and degreasing solid surfaces, e.g., printed circuits. The mixture has a flash point above 55.degree. C. (ASTM D56-70) and a distillation range of 175.degree. C. to 235.degree. C.

    Abstract translation: PCT No.PCT / FR96 / 00584 Sec。 371日期1998年2月10日 102(e)1998年2月10日PCT PCT 1996年4月17日PCT公布。 公开号WO96 / 33260 日期1996年10月24日使用通式CnH 2(n + 1-a)的环烷烃的混合物,其中n为8〜12的整数,a为环的数目,作为清洗和脱脂固体表面的试剂, 例如印刷电路。 该混合物的闪点高于55℃(ASTM D56-70),蒸馏范围为175〜235℃。

    Cleaning composition based on 1,1-dichloro-1-fluoroethane, methyl
formate and methanol
    7.
    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
    8.
    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。

    Cleaning or drying compositions based on F36mfc, CHzCLz, CH3OH and 43-10mee
    9.
    发明授权
    Cleaning or drying compositions based on F36mfc, CHzCLz, CH3OH and 43-10mee 失效
    基于F36mfc,CHzCLz,CH3OH和43-10mee的清洁或干燥组合物

    公开(公告)号:US06291416B1

    公开(公告)日:2001-09-18

    申请号:US09556863

    申请日:2000-04-21

    CPC classification number: C11D7/5081

    Abstract: In order to replace compositions based on CFC or on HCFC in cleaning or drying applications on solid surfaces (in particular defluxing), the invention provides azeotropic or near-azeotropic compositions based on 1,1,1,3,3-pentafluorobutane, on dichloromethane, on methanol and on 1,1,1,2,3,4,4,5,5,5-decafluoropentane.

    Abstract translation: 为了在固体表面上清洁或干燥应用(特别是脱焊)中替代基于CFC或HCFC的组合物,本发明提供了基于1,1,1,3,3-五氟丁烷的二氯甲烷的共沸或近共沸组合物 在甲醇上和1,1,1,2,3,4,4,5,5,5-十氟戊烷上。

    Cleaning or drying compositions based on 43-10mee and on trichloroethylene
    10.
    发明授权
    Cleaning or drying compositions based on 43-10mee and on trichloroethylene 失效
    基于43-10mee和三氯乙烯的清洁或干燥组合物

    公开(公告)号:US06281184B1

    公开(公告)日:2001-08-28

    申请号:US09556862

    申请日:2000-04-21

    CPC classification number: C11D7/5059 C11D7/5068 C23G5/02803

    Abstract: Compns. based on azeotropic or quasi-azeotropic mixts. of trichloroethylene and 1,1,1,2,3,4,4,5,5,5-decafluoropentane are useful for replacing CFC or HCFC in cleaning and degreasing of surfaces (e.g., defluxing of printed circuits) and drying of surfaces. The ability of these compns. to dry surfaces is improved by addn. of RCONR(CH2)nNHCOR surfactants (R=C14-22 alkyl, n=1-5).

    Abstract translation: 比较 基于共沸或准共沸混合物。 的三氯乙烯和1,1,1,2,3,4,4,5,5,5-十氟戊烷可用于在表面的清洁和脱脂(例如印刷电路的脱焊)和表面的干燥中替代CFC或HCFC。 这些compns的能力。 通过加成来改善干燥表面。 的RCONR(CH2)nNHCOR表面活性剂(R = C14-22烷基,n = 1-5)。

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