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1. 发明授权

US4101387A Composition for electrodeposition of metal deposits, its method of preparation and uses thereof 失效
标题翻译：用于电沉积金属沉积物的组合物，其制备方法及其用途
公开(公告)号：US4101387A
公开(公告)日：1978-07-18
申请号：US603563
申请日：1975-08-11
申请人： Hans-Gerhard Creutz , Roy Wilbur Herr , Richard Marshall Stevenson
发明人： Hans-Gerhard Creutz , Roy Wilbur Herr , Richard Marshall Stevenson
IPC分类号： C25D3/02 , C25D3/14 , C25D3/18 , C25D3/22 , C25D3/56 , C25D3/12 , C25D3/20
CPC分类号： C25D3/22 , C25D3/02 , C25D3/14 , C25D3/562
摘要： The instant invention is directed to an aqueous bath for the electrodeposition of bright metal deposits, and more particularly to a bath composition which provides upon the basis metal an electrodeposit having improved brightness, particularly in low current density areas, and as well, a condition of ductility markedly better than that which characterizes certain prior art baths. The electroplating bath composition of this invention embodies a polyethylenimine having the general empirical formula --[C.sub.2 H.sub.5 N].sub.x --, and a sulfonating agent for the polyethylenimine, whereby there is obtained a reaction product which contains nitrogen substituted sulfamate groups as an integral part of the polymer chain. The nitrogen substituted sulfamate unit of the reaction product is represented by the formula: ##STR1## where, M = H, Li, Na, K, or, NH.sub.4. The ratio of these nitrogen substituted sulfamate units to amino units, --[CH.sub.2 CH.sub.2 NH]--, in the reaction product is determined by the molar ratio of the polymer repeat unit, --[C.sub.2 H.sub.5 N]--, to sulfonating agent in the reaction.
摘要翻译：本发明涉及一种用于电沉积光亮金属沉积物的水浴，更具体地涉及一种浴组合物，其在基础金属上提供具有改善的亮度的电沉积物，特别是在低电流密度区域，以及条件延展性明显优于某些现有技术浴的特征。本发明的电镀浴组合物体现了具有一般经验式 - [C 2 H 5 N] x - 的聚乙烯亚胺和用于聚乙烯亚胺的磺化剂，由此得到含有氮取代的氨基磺酸酯基作为聚合物的组成部分的反应产物链。反应产物的氮取代的氨基磺酸酯单元由下式表示：其中，M = H，Li，Na，K或NH 4。反应产物中这些氮取代的氨基磺酸酯单元与氨基单元 - [CH 2 CH 2 NH] - 的比例由聚合物重复单元 - [C 2 H 5 N] - 与反应中的磺化剂的摩尔比确定。

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