Electrodeposition of zinc and additives therefor
    1.
    发明授权
    Electrodeposition of zinc and additives therefor 失效
    电沉积锌及其添加剂

    公开(公告)号:US4071418A

    公开(公告)日:1978-01-31

    申请号:US675480

    申请日:1976-04-09

    IPC分类号: C25D3/22

    CPC分类号: C25D3/22

    摘要: Bright zinc plate is obtained from alkaline, cyanide-free zinc plating baths containing (a) at least one linear polyamine obtained by condensing an aliphatic diamine containing at least one tertiary amino group with a 1,3-dihalopropan-2-ol, and (b) at least one substituted pyridine compound in the form of a free base or as a quaternized derivative. A brightener composition containing the linear polyamine and the pyridine compound can be added to alkaline, cyanide-free zinc plating baths.

    摘要翻译: 由碱性无氰化物镀锌浴得到明亮的锌板,该镀液含有(a)通过将含有至少一个叔氨基的脂肪族二胺与1,3-二卤丙烷-2-醇缩合得到的至少一种直链多胺,和 b)至少一种取代的吡啶化合物,其形式为游离碱或季铵化衍生物。 含有线性多胺和吡啶化合物的增白剂组合物可以添加到碱性,不含氰化物的镀锌浴中。

    Cyanide-free aqueous alkaline bath used for the galvanic application of zinc or zinc-alloy coatings
    2.
    发明授权
    Cyanide-free aqueous alkaline bath used for the galvanic application of zinc or zinc-alloy coatings 有权
    用于电镀锌或锌合金涂层的无氰化钠碱性浴

    公开(公告)号:US06652728B1

    公开(公告)日:2003-11-25

    申请号:US09786242

    申请日:2001-06-25

    IPC分类号: C25D322

    CPC分类号: C25D3/22 C25D3/565

    摘要: An aqueous alkaline cyanide-free bath for the galvanic deposition of zinc or zinc alloy coatings on substrate surfaces is described, which contains in addition to a source of zinc ions and optionally a source of further metal ions, also hydroxide ions and a polymer of the general formula A that is soluble in the bath as well as optionally conventional additives. The bath may furthermore contain a quaternary derivative of a pyridine-3-carboxylic acid of the formula B and/or a quaternary derivative of a pyridine-3-carboxylic acid of the formula C A process for the galvanic deposition of zinc coatings and zinc alloy coatings using the aforedescribed bath is also described. By using the baths according to the invention it is possible to produce coatings that exhibit a uniform layer thickness combined with a high gloss, and which do not exhibit any tendency to exfoliate.

    摘要翻译: 描述了用于在基底表面上电镀锌或锌合金涂层的碱性无氰水溶液,其还包含锌离子源和任选的其它金属离子源,还包含氢氧根离子和 可溶于浴的通式A以及任选的常规添加剂。 该浴还可以含有式B的吡啶-3-羧酸的季衍生物和/或式CA方法的吡啶-3-羧酸的季衍生物,用于电镀锌涂层和锌合金涂层 还描述了使用上述浴。通过使用根据本发明的浴,可以生产出具有与高光泽度结合的均匀层厚度并且不表现出任何脱落倾向的涂层。

    Electrodeposition of zinc and additive therefore
    3.
    发明授权
    Electrodeposition of zinc and additive therefore 失效
    因此锌和添加剂的电沉积

    公开(公告)号:US4071419A

    公开(公告)日:1978-01-31

    申请号:US675500

    申请日:1976-04-09

    IPC分类号: C25D3/22

    CPC分类号: C25D3/22

    摘要: Bright zinc plate is obtained from alkaline, cyanide-free zinc plating baths containing at least one linear polyamine obtained by condensing an aliphatic diamine with an aliphatic dihalide. Especially good results are obtained if the bath also contains at least one substituted pyridine compound in the form of a free base or as a quaternised derivative. A brightener composition containing both the linear polyamine and the pyridine compound can be added to alkaline, cyanide-free zinc plating baths.

    摘要翻译: 由含有至少一种通过将脂族二胺与脂族二卤化物缩合得到的至少一种线型多胺的碱性无氰化物镀锌浴获得明亮的锌板。 如果浴还含有游离碱或季铵化衍生物形式的至少一种取代的吡啶化合物,则得到特别好的结果。 含有线性多胺和吡啶化合物的增白剂组合物可以添加到碱性,不含氰化物的镀锌浴中。

    Plating
    4.
    发明授权
    Plating 失效
    电镀

    公开(公告)号:US4049509A

    公开(公告)日:1977-09-20

    申请号:US671498

    申请日:1976-03-29

    IPC分类号: C25D3/16 C25D3/12

    CPC分类号: C25D3/16

    摘要: The mixture present after reaction of an acetylenic diol and less than an equimolar amount of an alkylene oxide or the like oxirane compound, and comprising a proportion of unreacted acetylenic diol starting material together with proportions of the mono-substituted and di-substituted reaction products is used as a nickel-plating bath additive. Preferred ranges for the reaction mixture of diol/oxirane are 1 : 0.5. to 1 : 0.95, and a preferred combination is 2-butyne-1,4-diol and propylene oxide.

    摘要翻译: 在炔属二醇与小于等摩尔量的环氧乙烷或类似环氧乙烷化合物反应后存在的混合物,并且包含一部分未反应的炔属二醇起始原料以及单取代和二取代的反应产物的比例, 用作镀镍浴添加剂。 二醇/环氧乙烷的反应混合物的优选范围为1:0.5。 至1:0.95,优选的组合为2-丁炔-1,4-二醇和环氧丙烷。