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    Cationic electrodepositable coating composition and coating method using the same
    1.
    发明公开
    Cationic electrodepositable coating composition and coating method using the same 失效
    Kateische Elektrotauchlackzusammensetzung und Beschichtungsverfahren unter Verwendung derselben

    公开(公告)号：EP0705888A1

    公开(公告)日：1996-04-10

    申请号：EP95112945.1

    申请日：1995-08-17

    申请人： KANSAI PAINT CO. LTD.

    发明人： Haneishi, Hidehiko ,  Kudoh, Masanobu ,  Kamikado, Koji ,  Horibe, Kyoichi ,  Kume, Masafumi ,  Kasukawa, Takahisa ,  Ohkoshi, Toshio ,  Nakahata, Akimasa ,  Tatsuno, Tadayoshi ,  Mitsuji, Masaru

    IPC分类号： C09D5/44

    CPC分类号： C08G18/10 ,  C08G18/003 ,  C08G18/4225 ,  C08G18/6229 ,  C08G18/8077 ,  C08G59/28 ,  C08L63/00 ,  C09D5/4473 ,  C09D163/00 ,  Y10T428/12569 ,  Y10T428/31522 ,  C08G18/64 ,  C08G18/58 ,  C08L75/04 ,  C08L2666/04

    摘要： The present invention provides a cationic electrodepositable coating composition comprising:
       [I] a polyurethane-modified epoxy resin-amine adduct obtained by a reaction of:

    (A) a polyurethane compound having one terminal isocyanate group in the molecule, obtained by a reaction of (a) a polyhydroxy compound having a number-average molecular weight of 50-8,000, (b) a polyisocyanate compound, and (c) a compound having one active hydrogen atom in the molecule,
    (B) a bisphenol type epoxy resin having at least two epoxy groups in the molecule, and
    (C) an active-hydrogen-containing amine compound, and [II] a nonionic film-forming resin.

    This composition can form a coating film having excellent weathering resistance and corrosion resistance and, when used in combination with an aqueous base coating and a powder coating (a top coat), can provide a coating system which is simple to apply, which can give a coating film very superior in appearance, corrosion resistance, weathering resistance, chipping resistance, etc., and which contributes to resource saving and reduced public hazard.

    摘要翻译： 本发明提供一种阳离子电沉积涂料组合物，其包含：通过以下反应获得的聚氨酯改性的环氧树脂 - 胺加合物：（A）分子中具有一个末端异氰酸酯基团的聚氨酯化合物，通过（a） 数均分子量为50-8,000的多羟基化合物，（b）多异氰酸酯化合物，和（c）分子中具有一个活性氢原子的化合物，（B）具有至少两个环氧基的双酚型环氧树脂 分子中的基团，和（C）含活性氢的胺化合物，和非离子成膜树脂。 该组合物可以形成具有优异的耐候性和耐腐蚀性的涂膜，并且当与基底涂料和粉末涂料（顶涂层）组合使用时，可以提供易于涂覆的涂布体系，其可以给出 涂膜在外观上非常优异，耐腐蚀性，耐候性，耐崩溃性等，有助于资源节约和减少公共危害。