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2. 发明申请

US20050025978A1 Method of finish-coating automotive bodies and finished automotive bodies 审中-公开
标题翻译：汽车车身和成品汽车车身涂层的方法
公开(公告)号：US20050025978A1
公开(公告)日：2005-02-03
申请号：US10865688
申请日：2004-06-10
申请人： Hidetsumu Okada , Tsuyoshi Harakawa
发明人： Hidetsumu Okada , Tsuyoshi Harakawa
IPC分类号： B05D7/00 , B05D7/02 , B05D7/14 , B05D7/24 , C09D5/00 , C09D5/02 , C09D5/29 , C09D133/06 , C09D161/28 , C09D175/04 , C09D201/00 , B05D3/02 , B32B27/00
CPC分类号： B05D7/532 , B05D7/02 , B05D7/14 , B05D7/57 , C09D133/06 , Y10T428/31551 , Y10T428/31681
摘要： The present invention has for its object to provide a method of finish-coating an automotive body consisting of steel plate and plastic parts which comprises forming a top film with excellent curability and adhesion concurrently on both the steel plate and plastic parts to produce an automotive body which is free from a color difference between the two kinds of parts, thus having an excellent color design and appearance. A method of finish-coating automotive bodies comprising, in sequence, a step of coating both steel plate part and plastic part of an automotive body concurrently with a water-borne base coating composition, a step of coating the same further concurrently with a clear coating composition containing an isocyanate compound as a curing agent in a wet-on-wet technique, and a step of causing the resulting successive coats to cure concurrently to form a multilayer film, wherein said water-borne base coating composition comprises an emulsion resin resulting from emulsion polymerization of an α,β-ethylenically unsaturated monomer mixture comprising at least 65 weight % of a (meth)acrylic ester whose ester moiety has 1 or 2 carbon atoms and having an acid value of 3 to 50 mg KOH/g and a hydroxyl value of 10 to 150 and a pigment.
摘要翻译：本发明的目的是提供一种涂覆由钢板和塑料部件组成的汽车主体的方法，其包括在钢板和塑料部件上同时形成具有优异的固化性和粘合性的顶部膜，以制造汽车体这两种部件之间没有色差，因此具有出色的颜色设计和外观。一种汽车车身涂层的方法，其特征在于，其顺序地包括与水性基底涂料组合物同时涂覆汽车体的钢板部分和塑料部分的步骤，将其与透明涂层进一步同时涂布的步骤在湿式湿法技术中含有异氰酸酯化合物作为固化剂的组合物，以及使得到的连续涂层同时固化以形成多层膜的步骤，其中所述水性基底涂料组合物包含由包含至少65重量％的酯部分具有1或2个碳原子且酸值为3至50mg KOH / g的（甲基）丙烯酸酯和具有3至50mg KOH / g的酸值的α，β-烯键式不饱和单体混合物的乳液聚合，值为10至150和颜料。

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