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公开(公告)号：US09739544B2
公开(公告)日：2017-08-22
申请号：US14382922
申请日：2013-03-08
发明人： Norizumi Matsui , Akihiro Mizuno , Yuko Wada , Junsuki Hokka , Kenji Nakamura , Takayuki Hirose , Kengo Kobayashi
IPC分类号： C23C22/40 , C23C22/56 , F28F13/18 , C23C22/44 , F28F19/06 , C23C22/83 , B23K1/00 , F28F21/08 , B23K1/20 , C23C22/34 , B05D3/10 , B05D3/02 , B23K101/14 , B23K103/10
CPC分类号： F28F13/18 , B05D3/0254 , B05D3/102 , B05D2202/25 , B23K1/0012 , B23K1/20 , B23K2101/14 , B23K2103/10 , C23C22/44 , C23C22/83 , F28F19/06 , F28F21/084
摘要： A surface treatment method for aluminum heat exchangers including (a) a step wherein a chemical conversion coating film is formed on the surface of an aluminum heat exchanger by subjecting the aluminum heat exchanger to chemical conversion using a chemical conversion agent; (b) a step wherein the aluminum heat exchanger, the surface of which has been provided with a chemical conversion coating film in step (a), is brought into contact with a hydrophilizing agent that contains a hydrophilic resin; and (c) a step wherein a hydrophilized coating film is formed on the surface of the aluminum heat exchanger by baking the aluminum heat exchanger, which has been subjected to a contact treatment in step (b). The chemical conversion agent used in step (a) contains zirconium and/or titanium in an amount of 5-5,000 ppm by mass in total, vanadium in an amount of 10-1,000 ppm by mass and a metal stabilizer in an amount of 5-5,000 ppm by mass. In addition, the chemical conversion agent used in step (a) has a pH of 2-6.
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公开(公告)号：US11149163B2
公开(公告)日：2021-10-19
申请号：US16464605
申请日：2017-11-29
发明人： Yuko Wada , Hitoshi Kayama , Masahiko Matsukawa
IPC分类号： C09D129/06 , C09D7/61 , C09D4/06 , C09D5/00 , C09D129/04 , C09D5/08 , C09D171/02 , C08K3/22 , C08F2/44 , B05D3/02 , B05D7/16 , F28F13/18 , F28F21/08
摘要： The present invention provides a heat exchanger which is imparted with high deodorizing properties in terms of cigarettes. A heat exchanger which has a hydrophilic coating film on the surface of a substrate that is formed from aluminum, and wherein the hydrophilic coating film is formed using a hydrophilizing agent that contains 0.8-1.8% by mass of a vanadium compound in terms of elemental vanadium, while containing 90% by mass or more of a resin which contains 38-40% by mass of a polyvinyl alcohol having an ethylene chain, 22-24% by mass of a radically polymerizable monomer having a carboxylic acid, 15-17% by mass of a radically polymerizable monomer represented by general formula and 22-24% by mass of a polyethylene glycol.
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公开(公告)号：US10676632B2
公开(公告)日：2020-06-09
申请号：US15576197
申请日：2016-06-03
发明人： Masako Umeda , Koichi Saito , Miwa Uchikawa , Yuko Wada , Akihiro Mizuno , Sohei Kaneko
IPC分类号： C09D151/00 , C08F261/04 , C08L51/00 , C09D129/04 , C09D7/40 , C08L29/04 , C09D5/08 , F28F13/18
摘要： Provided are an aqueous resin dispersion of an ethylene-vinyl alcohol copolymer exhibiting excellent dispersion stability, a production method for the aqueous resin dispersion, a hydrophilization agent including the aqueous resin dispersion, a hydrophilization method using the hydrophilization agent, a metal material on which a hydrophilic coating has been formed, and a heat exchanger on which a hydrophilic coating has been formed. Specifically provided are: an aqueous resin dispersion comprising an ethylene-vinyl alcohol copolymer (A) and a radical polymer (B) having a structural unit derived from a radical-polymerizable carboxylic acid monomer (B1-1), wherein the content of the radical polymer (B) is 10-80 mass % relative to the total content of the ethylene-vinyl alcohol copolymer (A) and the radical polymer (B); a production method for the aqueous resin dispersion; a hydrophilization agent including the aqueous resin dispersion; a hydrophilization method using the hydrophilization agent; a metal material on which a hydrophilic coating has been formed; and a heat exchanger on which a hydrophilic coating has been formed.
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公开(公告)号：US09896766B2
公开(公告)日：2018-02-20
申请号：US14781856
申请日：2014-04-03
发明人： Akihiro Mizuno , Norizumi Matsui , Yuko Wada
IPC分类号： C23C22/80 , C23C22/40 , C23C22/82 , C23C22/34 , C23C22/44 , C23C22/74 , F28F19/06 , F28F21/08 , F28F19/02 , C09D5/08 , C23C22/00 , B05D3/10
CPC分类号： C23C22/34 , B05D3/102 , B05D2202/25 , C09D5/084 , C23C22/40 , C23C22/44 , C23C22/74 , C23C22/82 , F28F19/02 , F28F19/06 , F28F21/084 , F28F2245/02
摘要： Provided is a surface processing method for an aluminum heat exchanger, by which odor can be suppressed and which enables the aluminum heat exchanger to exhibit corrosion resistance and moisture resistance that are excellent to conventional art. The surface processing method for an aluminum heat exchanger uses a chemical conversion treatment agent that includes: one, or two or more type of a metallic element (A) selected from a group comprising of zirconium, titanium, and hafnium; vanadium element (B); and a resin (C). The resin (C) includes a polyvinyl alcohol resin (C1). The ratio (Wa/Wb) of the weight-based total content (Wa) of the metallic element (A) relative to the weight-based content (Wb) of vanadium element (B) is 0.1-15, and the ratio ((Wa+Wb)/Wc1) of the weight-based total content (Wa+Wb) of the metallic element (A) and vanadium element (B) relative to the weight-based total content (Wc1) of the polyvinyl alcohol resin (C1) is 0.25-15.
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公开(公告)号：US11505714B2
公开(公告)日：2022-11-22
申请号：US16688211
申请日：2019-11-19
发明人： Masako Umeda , Koichi Saito , Miwa Uchikawa , Yuko Wada , Akihiro Mizuno , Sohei Kaneko
IPC分类号： C09D129/04 , C09D7/40 , C09D5/08 , C08L51/00 , C08L29/04 , C08F261/04 , C09D151/00 , F28F13/18
摘要： Provided are an aqueous resin dispersion of an ethylene-vinyl alcohol copolymer exhibiting excellent dispersion stability, a production method for the aqueous resin dispersion, a hydrophilization agent including the aqueous resin dispersion, a hydrophilization method using the hydrophilization agent, a metal material on which a hydrophilic coating has been formed, and a heat exchanger on which a hydrophilic coating has been formed. Specifically provided are: an aqueous resin dispersion comprising an ethylene-vinyl alcohol copolymer (A) and a radical polymer (B) having a structural unit derived from a radical-polymerizable carboxylic acid monomer (B1-1), wherein the content of the radical polymer (B) is 10-80 mass % relative to the total content of the ethylene-vinyl alcohol copolymer (A) and the radical polymer (B); a production method for the aqueous resin dispersion; a hydrophilization agent including the aqueous resin dispersion; a hydrophilization method using the hydrophilization agent; a metal material on which a hydrophilic coating has been formed; and a heat exchanger on which a hydrophilic coating has been formed.
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公开(公告)号：US09757811B2
公开(公告)日：2017-09-12
申请号：US14346132
申请日：2012-09-20
发明人： Norizumi Matsui , Yuko Wada , Akihiro Mizuno , Junsuke Hokka
IPC分类号： C23C22/34 , C23C22/40 , B23K1/00 , C23C22/44 , C23C22/83 , F28F19/02 , F28F21/08 , B23P15/26 , C23C22/73 , C23C22/00
CPC分类号： B23K1/0012 , B05D2202/25 , B23P15/26 , C23C22/44 , C23C22/73 , C23C22/83 , C23C2222/20 , F28F19/02 , F28F21/084 , F28F2265/22 , Y10T29/49393
摘要： A surface treatment method capable of imparting exceptional corrosion resistance and moisture resistance to an NB heat exchanger. The method includes subjecting an NB heat exchanger to a chemical conversion treatment to form a chemical conversion film on the surface thereof using a chemical conversion treatment agent that contains zirconium and/or titanium in a total amount of 5-5,000 ppm by weight, vanadium in an amount of 10-1,000 ppm by weight, and has a pH of 2-6; bringing the NB heat exchanger on whose surface the chemical conversion film is formed into contact with a hydrophilization agent containing a hydrophilic resin and a guanidine compound and/or a salt thereof; and baking the NB heat exchanger subjected to the contacting process, whereby a hydrophilic film is formed on the surface thereof.
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公开(公告)号：US20150013947A1
公开(公告)日：2015-01-15
申请号：US14382922
申请日：2013-03-08
发明人： Norizumi Matsui , Akihiro Mizuno , Yuko Wada , Junsuke Hokka
CPC分类号： F28F13/18 , B05D3/0254 , B05D3/102 , B05D2202/25 , B23K1/0012 , B23K1/20 , B23K2101/14 , B23K2103/10 , C23C22/44 , C23C22/83 , F28F19/06 , F28F21/084
摘要： A surface treatment method for aluminum heat exchangers including (a) a step wherein a chemical conversion coating film is formed on the surface of an aluminum heat exchanger by subjecting the aluminum heat exchanger to chemical conversion using a chemical conversion agent; (b) a step wherein the aluminum heat exchanger, the surface of which has been provided with a chemical conversion coating film in step (a), is brought into contact with a hydrophilizing agent that contains a hydrophilic resin; and (c) a step wherein a hydrophilized coating film is formed on the surface of the aluminum heat exchanger by baking the aluminum heat exchanger, which has been subjected to a contact treatment in step (b). The chemical conversion agent used in step (a) contains zirconium and/or titanium in an amount of 5-5,000 ppm by mass in total, vanadium in an amount of 10-1,000 ppm by mass and a metal stabilizer in an amount of 5-5,000 ppm by mass. In addition, the chemical conversion agent used in step (a) has a pH of 2-6.
摘要翻译： 一种铝热交换器的表面处理方法，其特征在于，包括（a）在铝热交换器的表面上通过使用化学转化剂使铝热交换器进行化学转化而形成化学转化膜的工序的工序; （b）在步骤（a）中将其表面设置有化学转化膜的铝热交换器与含有亲水性树脂的亲水剂接触的工序; 和（c）在步骤（b）中通过烘烤已经进行了接触处理的铝热交换器，在铝热交换器的表面上形成亲水化的涂膜的步骤。 步骤（a）中使用的化学转化剂总共含有总计为5-5,000质量ppm的锆和/或钛，量为10-1000质量ppm的钒和金属稳定剂的量为5- 5,000质量ppm。 此外，步骤（a）中使用的化学转化剂的pH为2-6。
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