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1. 发明公开

US20230159788A1 COATING COMPOSITION AND IN-MOLD COATING METHOD 审中-公开
公开(公告)号：US20230159788A1
公开(公告)日：2023-05-25
申请号：US17917847
申请日：2021-03-29
申请人： KANSAI PAINT CO., LTD.
发明人： Katsuto Komura , Yukihiro Nemoto
IPC分类号： C09D175/12 , C08G18/73 , C08G18/42 , C08G18/36 , C08G18/28 , C08G18/66 , C09D5/00 , C09D7/63 , C08K5/101 , C08K5/098
CPC分类号： C09D175/12 , C08G18/73 , C08G18/42 , C08G18/36 , C08G18/2865 , C08G18/2825 , C08G18/6662 , C09D5/00 , C09D7/63 , C08K5/101 , C08K5/098 , B29C45/1679
摘要： The present invention provides a coating composition which is capable of forming a coating film that has excellent adhesion to a base material. The coating composition contains: an isocyanate-reactive group-containing resin (A); a polyisocyanate compound (B); and a hydroxyl group-containing aromatic compound (C) having a number average molecular mass of 100-1,000. The isocyanate-reactive group-containing resin (A) in the coating composition contains at least one type of resin selected from a hydroxyl group-containing resin (A1) and an amino group-containing resin (A2).

2. 发明授权

US10697066B2 Method for forming multi-layered coating film 有权
公开(公告)号：US10697066B2
公开(公告)日：2020-06-30
申请号：US14438992
申请日：2014-07-30
申请人： KANSAI PAINT CO., LTD.
发明人： Yukihiro Nemoto
IPC分类号： C25D13/20 , C23C22/34 , C09D5/44 , C23C22/83 , C09D5/08 , C23C22/36
摘要： An object of the present invention is to provide a method for forming a multilayer coating film, the method capable of achieving excellent finished appearance and excellent corrosion resistance without affecting electrodeposition coatability even when a part or all of the water-washing step is omitted after chemical conversion treatment, and to provide a coated article. The invention provides a method for forming a multilayer coating film, comprising forming a chemical conversion coating film and an electrodeposition coating film on a metal substrate by Step 1 of immersing a metal substrate in a chemical conversion treatment solution to form a chemical conversion coating film, and Step 2 of omitting a part or all of the water-washing step, and performing electrodeposition coating on the metal substrate using a cationic electrodeposition coating composition to form an electrodeposition coating film, wherein the chemical conversion treatment solution contains less than 500 ppm of sodium ions on a mass basis, and hexafluorozirconic acid. The chemical conversion treatment solution preferably contains no less than 5 ppm to less than 50 ppm of sodium ions, no less than 5 ppm to less than 90 ppm of calcium ions, less than 100 ppm of potassium ions, and less than 90 ppm of magnesium ions, on a mass basis; and is used continuously.

3. 发明授权

US10577708B2 Multi-layered coating film formation method 有权
公开(公告)号：US10577708B2
公开(公告)日：2020-03-03
申请号：US14906018
申请日：2014-08-08
申请人： KANSAI PAINT CO., LTD.
发明人： Yukihiro Nemoto , Hideki Matsuda
IPC分类号： C25D9/02 , C23C22/34 , C25D13/20 , C09D5/44 , C23C22/36 , C23C22/83 , C25D13/22 , C09D163/00 , C09D175/04 , C23C22/48 , C23C22/82 , C25D5/34 , C25D7/00 , C25D13/12
摘要： A problem to be solved by the present invention is to provide a method for forming a multilayer coating film, the method being capable of achieving excellent finished appearance and excellent corrosion resistance without affecting electrodeposition coatability even when a part or all of the water-washing step is omitted after chemical conversion treatment, and to provide a coated article. The invention provides a method for forming a multilayer coating film, comprising forming a chemical conversion coating film and an electrodeposition coating film on a metal substrate by Step 1 of immersing a metal substrate in a chemical conversion treatment solution to form a chemical conversion coating film, and Step 2 of omitting a part or all of the water-washing step, and performing electrodeposition coating on the metal substrate using a cationic electrodeposition coating composition to form an electrodeposition coating film, wherein when the electrodeposition coating is performed in Step 2, the solution adhered to and/or deposited on the metal substrate has an electrical conductivity of less than 10,000 μS/cm.

4. 发明申请

US20150292103A1 METHOD FOR FORMING MULTI-LAYERED COATING FILM 审中-公开
标题翻译：形成多层涂膜的方法
公开(公告)号：US20150292103A1
公开(公告)日：2015-10-15
申请号：US14438992
申请日：2014-07-30
申请人： KANSAI PAINT CO., LTD.
发明人： Yukihiro Nemoto
IPC分类号： C25D13/06 , C23C22/34 , C25D13/20
摘要： An object of the present invention is to provide a method for forming a multilayer coating film, the method capable of achieving excellent finished appearance and excellent corrosion resistance without affecting electrodeposition coatability even when a part or all of the water-washing step is omitted after chemical conversion treatment, and to provide a coated article. The invention provides a method for forming a multilayer coating film, comprising forming a chemical conversion coating film and an electrodeposition coating film on a metal substrate by Step 1 of immersing a metal substrate in a chemical conversion treatment solution to form a chemical conversion coating film, and Step 2 of omitting a part or all of the water-washing step, and performing electrodeposition coating on the metal substrate using a cationic electrodeposition coating composition to form an electrodeposition coating film, wherein the chemical conversion treatment solution contains less than 500 ppm of sodium ions on a mass basis.
摘要翻译：本发明的目的是提供一种形成多层涂膜的方法，即使在化学品之后省略部分或全部水洗步骤时，也能够在不影响电沉积涂布性的情况下实现优异的成品外观和优异的耐腐蚀性的方法转化处理，并提供涂层制品。本发明提供一种形成多层涂膜的方法，其包括在金属基材上形成化学转化膜和电沉积涂膜，步骤1将金属基材浸渍在化学转化处理溶液中以形成化学转化涂膜，和步骤2，省略部分或全部水洗步骤，并使用阳离子电沉积涂料组合物在金属基材上进行电沉积涂布以形成电沉积涂膜，其中化学转化处理溶液含有少于500ppm的钠离子。

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