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41. 发明授权

US06383307B1 Aqueous metal treatment composition 失效
标题翻译：金属水处理组合物
公开(公告)号：US06383307B1
公开(公告)日：2002-05-07
申请号：US09235201
申请日：1999-01-22
申请人： Helmut W. Kucera , Yuan He
发明人： Helmut W. Kucera , Yuan He
IPC分类号： C23C2200
CPC分类号： C08G8/28 , C09D5/088 , C09D161/06
摘要： An aqueous metal surface treatment composition that includes (A) an aqueous dispersion of a phenolic novolak resin that includes water and a reaction product of a phenolic resin precursor, a modifying agent and a multi-hydroxy phenolic compound wherein the modifying agent includes at least one functional moiety that enables the modifying agent to react with the phenolic resin precursor and at least one ionic moiety, (B) an acid and, optionally, (C) a flexibilizer. According to one embodiment the modifying agent is an aromatic compound. According to another embodiment the ionic moiety of the modifying agent is sulfate, sulfonate, sulfinate, sulfenate or oxysulfonate and the dispersed phenolic resin reaction product has a carbon/sulfur atom ratio of 20:1 to 200:1.
摘要翻译：一种含水金属表面处理组合物，其包含（A）包含水的酚醛清漆树脂的水性分散体和酚醛树脂前体，改性剂和多羟基酚类化合物的反应产物，其中所述改性剂包括至少一种使得改性剂能够与酚醛树脂前体和至少一个离子部分反应的官能部分，（B）酸和任选的（C）增韧剂。根据一个实施方案，改性剂是芳族化合物。根据另一个实施方案，改性剂的离子部分是硫酸根，磺酸根，亚磺酸根，次膦酸根或氧代磺酸根，分散的酚醛树脂反应产物的碳/硫原子比为20:1至200:1。

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