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    • 2. 发明申请
    • METHOD FOR FORMIN MULTILA ER COATIN FILM
    • 用于形成多层漆膜的方法
    • WO2009014226A2
    • 2009-01-29
    • PCT/JP2008063458
    • 2008-07-18
    • KANSAI PAINT CO LTDTOYOTA MOTOR CO LTDOGAWA JUNYAKANAGAWA KOJINAKAHARA SUICHIIIDA TADASHINAGANO HIROYUKIMATSUNO YOSHIZUMINAKAO YASUSHI
    • OGAWA JUNYAKANAGAWA KOJINAKAHARA SUICHIIIDA TADASHINAGANO HIROYUKIMATSUNO YOSHIZUMINAKAO YASUSHI
    • B05D7/00
    • B05D7/574B05D3/0254B05D7/572B05D2202/10Y10T428/31511
    • This invention provides a method for forming multilayer coating film excelling in smoothness and distinctness of image, by 3-coat-l-bake system in which a step of applying onto a coating object a water-based intermediate paint (X) to form an intermediate coating film; a step of adjusting the solid content of the intermediate coating film to 70 - 100 mass%; a step of applying onto the intermediate coating film a water-based base coating paint (Y) containing 30 - 55 mass parts of alcoholic solvent having a boiling point of 170 - 2500C, to form a base coating film; a step of adjusting the solid content of the base coating film to 70 - 100 mass%; a step of applying a clear paint (Z) comprising 40 - 60 mass parts of carboxyl-containing compound and 60 - 40 mass parts of polyepoxide onto the base coating film to form a clear coating film; and heating the intermediate coating film, base coating film and clear coating film at 100 - 1200C for 3 - 10 minutes and thereafter further heating them at 130 - 1600C for 10 - 30 minutes! are successively carried out.
    • 本发明提供了一种形成具有光滑度和图像清晰度的多层涂膜的方法,该方法通过在涂布物上涂布水性中间涂料(X)以形成中间体的步骤的3涂布1-烘烤体系 涂膜; 将中间涂膜的固体成分调整为70〜100质量%的工序。 在所述中间涂膜上涂布含有30〜55质量份沸点为170〜250℃的醇系溶剂的水性基础涂料涂料(Y),形成基底涂膜的工序; 将底涂膜的固体成分调整为70〜100质量%的工序。 将含有40〜60质量份含羧基化合物和60〜40质量份聚环氧化物的透明涂料(Z)涂布到基底涂膜上以形成透明涂膜的步骤; 并在100-120℃加热中间涂膜,底涂膜和透明涂膜3-10分钟,然后在130-160℃下进一步加热10-30分钟。 连续进行。