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1. 发明授权

US4442244A Process for preparing heat-curable, water-dilutable coating compositions for coating metal substrates 失效
标题翻译：制备用于涂覆金属基材的可热固化的水可稀释涂料组合物的方法
公开(公告)号：US4442244A
公开(公告)日：1984-04-10
申请号：US276702
申请日：1981-06-23
申请人： Gerhard Johannes , Fali Shroff , Gerhard Dullis , Dieter Steidl
发明人： Gerhard Johannes , Fali Shroff , Gerhard Dullis , Dieter Steidl
IPC分类号： C09D5/44 , C09D7/80 , C09D163/00 , C09D165/00 , C09D5/40
CPC分类号： C09D5/4473 , C09D163/00 , C09D7/14 , Y10S524/901 , Y10S524/904
摘要： The invention relates to a process for preparing compositions for coating metal substrates or work pieces in an aqueous bath, in which the substrate forms the cathode.In this process 5-35% by weight of at least one epoxy resin, 2-20% by weight of at least one ketone and/or hydrocarbon resin, 15-60% by weight of at least one cationic synthetic resin having functional groups--this compound is a 10-50% by weight dispersion or solution--, 5-30% by weight of at least one organic cross-linking agent, which is solid at ambient temperature and 0-73% by weight of pigments and/or conventional adjuvants are processed together in one or more stages in a grinding apparatus to form a homogeneous coating composition. At least one stage being a wet operation. The composition has a particle size of less than 100 .mu.m, preferably less than 15 .mu.m. The grinding bath is adjusted with water to the solids content required for application. The particles obtained by the process are more homogeneous, with the result that, when applied to the object which is to be coated, a uniform layer thickness of the coating is obtained, which shows an increased impact strength.
摘要翻译：本发明涉及一种制备用于在基底形成阴极的水浴中涂覆金属基底或工件的组合物的方法。在该方法中，5-35重量％的至少一种环氧树脂，2-20重量％的至少一种酮和/或烃树脂，15-60重量％的至少一种具有官能团的阳离子合成树脂 - 该化合物是10-50重量％的分散体或溶液，5-30重量％的至少一种有机交联剂，其在环境温度下为固体，0-73重量％的颜料和/或常规佐剂在研磨装置中一个或多个阶段一起加工以形成均匀的涂料组合物。至少有一个阶段是湿法操作。该组合物的粒度小于100μm，优选小于15μm。将研磨浴用水调节至施用所需的固体含量。通过该方法获得的颗粒更均匀，结果当施加到待涂覆的物体上时，获得均匀的涂层厚度，这表现出增加的冲击强度。

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