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    Polymer compositions and alkaline zinc electroplating baths and processes
    2.
    发明授权
    Polymer compositions and alkaline zinc electroplating baths and processes 失效
    聚合物组合物和碱性锌电镀浴和工艺

    公开(公告)号：US4792383A

    公开(公告)日：1988-12-20

    申请号：US114098

    申请日：1987-10-27

    申请人： William I. Willis

    发明人： William I. Willis

    IPC分类号： C25D3/22 ,  C25D3/24 ,  C08G73/06 ,  C08L79/04

    CPC分类号： C25D3/24 ,  C25D3/22

    摘要： Compositions are described which are useful particularly in improving the electrodeposition of zinc from aqueous alkaline plating baths. In one embodiment, the new composition comprises the reaction product of(A-1) at least one nitrogen-containing heterocyclic compound with(A-2) at least one hydroxyamine;(A-3) an epihalohydrin, glycerolhalohydrin or mixtures thereof; and(A-4) at least one amino compound containing at least one N--H group to form the desired polymeric composition.Aqueous alkaline zinc electroplating baths containing the compositions of the invention with or without cyanide present, deposit a bright and lustrous zinc coating on metal over a wide range of current densities.

    摘要翻译： 描述了组合物，其特别用于改善水性碱性电镀液中锌的电沉积。 在一个实施方案中，新组合物包含（A-1）至少一种含氮杂环化合物与（A-2）至少一种羟胺的反应产物; （A-3）表卤代醇，甘油卤代醇或其混合物; 和（A-4）至少一种含有至少一个N-H基团的氨基化合物以形成所需的聚合物组合物。 含有本发明组合物的含碱性锌电镀浴含有或没有氰化物存在，在宽的电流密度范围内在金属上沉积光泽和光泽的锌涂层。

    Method for obtaining bright zinc and cadmium electroplates using carboxamide additives
    3.
    发明授权
    Method for obtaining bright zinc and cadmium electroplates using carboxamide additives 失效
    使用羧酰胺添加剂获得亮锌和镉电镀的方法

    公开(公告)号：US4177131A

    公开(公告)日：1979-12-04

    申请号：US927419

    申请日：1978-07-24

    申请人： Reuven Merker ,  Salvatore Lucca

    发明人： Reuven Merker ,  Salvatore Lucca

    IPC分类号： C25D3/24 ,  C25D3/28

    CPC分类号： C25D3/24 ,  C25D3/28

    摘要： The addition of an inner salt of a quaternized pyridine carboxamide, preferably 1-benzyl pyridinium-3-carboxamide to aqueous alkaline electroplating baths containing zinc and cadmium ions results in smooth, bright deposits of these metals. High plating efficiency with low consumption of the additive compound is obtained using it either alone or in combination with small amounts of nicotinamide.

    摘要翻译： 将季铵化吡啶甲酰胺，优选1-苄基吡啶鎓-3-甲酰胺的内盐加入到含有锌和镉离子的含水碱性电镀浴中，导致这些金属的光滑沉淀。 通过单独使用或与少量烟酰胺组合，可以获得高消耗添加剂化合物的高电镀效率。

    Zinc or cadmium electroplating brightener compositions and process
    4.
    发明授权
    Zinc or cadmium electroplating brightener compositions and process 失效
    锌或镉电镀增亮剂组合物及工艺

    公开(公告)号：US3969219A

    公开(公告)日：1976-07-13

    申请号：US602247

    申请日：1975-08-06

    申请人： John C. Kosmos

    发明人： John C. Kosmos

    IPC分类号： C25D3/24 ,  C25D3/28

    CPC分类号： C25D3/24 ,  C25D3/28

    摘要： Electroplating brightener compositions for addition to either alkaline or low, intermediate or high cyanide zinc or cadmium electroplating baths comprising an aqueous solution of corn syrup or glucose, vanillin, veratraldehyde, sodium lignin sulfonate, sodium bisulfite and niacinamide.

    摘要翻译： 用于加入碱性或低，中，高氰化锌或镉电镀浴的电镀增白剂组合物，其包含玉米糖浆或葡萄糖水溶液，香草醛，藜芦醛，木质素磺酸钠，亚硫酸氢钠和烟酰胺。

    Zinc electroplating bath having low cyanide content
    5.
    发明授权
    Zinc electroplating bath having low cyanide content 失效
    具有低氰化物含量的ZINC电镀浴

    公开(公告)号：US3806431A

    公开(公告)日：1974-04-23

    申请号：US24962872

    申请日：1972-05-02

    申请人： KOCH R

    发明人： KOCH R

    IPC分类号： C25D3/24 ,  C23B5/10 ,  C23B5/46

    CPC分类号： C25D3/24

    摘要： A BATH FOR ELECTROPLATING ZINC CONTAINING IN AQUEOUS SOLUTION A ZINC SALT, AN ALKALI METAL CYANIDE, AN ALKALI METAL HYDROXIDE, AN ALDEHYDE-ALKANOLAMINE CONDENSATION PRODUCT, A WATER SOLUBLE POLYVINYL ALCOHOL AND OPTIONALLY SALTS OF METALS OF GROUPS VII-B OR VIII OF THE PERIODIC TABLE OF ELEMENTS AND FURTHER TRICOTONYLENE TETRAMINE AND TRITHIONE (3-THIO-3H-1,2-DITHIOLE), SAID BATH HAVING A LOW CYANIDE CONTENT, YIELDS HIGHLY BRILLANT ZINC COATINGS WITH VERY GOOD THROWING POWER AND METAL DISTRIBUTION. PREFERRED ALDEHYDE-ALKANOLAMINE CONDENSATION PRODUCTS ARE CONDENSATION PRODUCTS OF A MONO-ALKANOLAMINE WITH AN AROMATIC ALDEHYDE OF THE GENERAL FORMULA

    (O=CH-),(R)X-BENZENE

    WHEREIN R IS HYDROXYL AND/OR LOWER ALKOXY HAVING FROM 1 TO 4 CARBON ATOMS AND X IS ZERO, ONE, OR TWO.

    Novel process for electrodepositing zinc
    6.
    发明授权
    Novel process for electrodepositing zinc 失效
    电镀锌的新工艺

    公开(公告)号：US3755097A

    公开(公告)日：1973-08-28

    申请号：US3755097D

    申请日：1971-10-27

    申请人： STAUFFER CHEMICAL CO

    发明人： COPE R

    IPC分类号： C25D3/24 ,  C23B5/10

    CPC分类号： C25D3/24

    摘要： There is disclosed a process for electrodepositing zinc involving the use, as brightening additives, of complex mixtures containing salts of di-(1-benzyl-3-carboxyl-1,2-dihydropyridyl-2) ether and the salts of the corresponding sulfides and polysulfides. The use of the latter additives leads to the preparation of zinc coatings characterized by their excellent smoothness, brightness, luster and adherance.

    摘要翻译： 公开了一种电沉积锌的方法，涉及使用包含二（1-苄基-3-羧基-1,2-二氢吡啶基-2）醚的盐和相应硫化物的盐的复合混合物作为增白剂的添加剂，以及 多硫化物。 使用后一种添加剂导致锌涂层的制备，其特征在于它们具有优异的平滑性，亮度，光泽和粘附性。