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公开(公告)号：EP1402083B1
公开(公告)日：2005-04-27
申请号：EP02780906.0
申请日：2002-06-21
CPC分类号： C23C22/08 , C23C22/34 , C23C22/36 , C23C22/361 , C23C22/83
摘要： The invention relates to an agent and method for carrying out the corrosion protection treatment of a metal surface. The invention is characterized in that the metal surface is brought into contact with a homopolymer or copolymer of vinyl pyrrolidone, whereby the application solution contains: a) 0.02 to 20 g/l phosphoric acid and/or at least one fluoro acid of one or more elements of the group Zr, Ti, Hf and Si or of each of their anions, and; b) 10 to 49.9 mg/l of a homopolymer or copolymer of vinyl pyrrolidone.
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公开(公告)号：EP1266047B1
公开(公告)日：2003-11-05
申请号：EP01927696.3
申请日：2001-02-23
CPC分类号： C23C22/364 , C23C22/34
摘要： The invention relates to a method for treating vehicle bodies or household appliances with an at least partially metallic surface, in such a way as to protect them from corrosion. Said metallic surface should consist of at least 90 % zinc, aluminium and/or magnesium and/or alloys of these metals with each other or with other alloy components, in relation to the metallic surface. According to said method, the vehicle bodies or household appliances are cleaned, passivated and coated. The invention is characterised in that for the purpose of passivation, the vehicle bodies or household appliances are brought into contact with an aqueous solution which has a pH-value of 1 to 12 and which contains such a quantity of complex fluorides of Ti, Zr, Hf, Si and/or B that the content of Ti, Zr, Hf, Si and/or B is 20 to 500 mg/l, and 50 to 2000 mg/l organic polymers, the composition of the aqueous solution being selected with a view to preventing the formation of a crystalline phosphate layer containing zinc on the metallic surface.
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公开(公告)号：EP1692325A1
公开(公告)日：2006-08-23
申请号：EP04791077.3
申请日：2004-10-30
摘要： The invention relates to a method for the two-stage corrosion prevention treatment of metallic surfaces. According to the inventive method, (a) in a first step, the metallic surface is brought into contact with a chromium-free first aqueous solution having a pH value of between 1.5 and 5, and containing a total of at least 0.01 g/l and up to 10 g/l Ti and/or Si ions, and at least a quantity of fluoride such that the atomic ratio Ti to F and/or Zr to F and/or Si to F is between 1: 1 and 1: 6, and then (b) in a second step, the metallic surface is brought into contact with a chromium-free second aqueous solution having a pH value between 1.5 and 5, containing a total of at least 0.01 g/l and up to 10 g/l Ti and/or Zr and/or Si ions, and at least a quantity of fluoride such that the atom ratio Ti to F and/or Zr to F and/or Si to F is between 1: 1 and 1: 6, and additionally containing such a quantity of soluble anions of oxoacids of molybdenum and/or wolfram in the oxidation stage VI, that the entire concentration of molybdenum and/or wolfram, calculated as MoO42- and/or WO42-, is between 5 and 1500 mg/l.
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4.发明公开FUNKTIONALISIERTES PHENOL-ALDEHYD-HARZ UND VERFAHREN ZUR BEHANDLUNG VON METALL-OBERFL CHEN 审中-公开功能化的酚醛树脂的合成及方法在金属表面陈的治疗
公开(公告)号：EP1692201A1
公开(公告)日：2006-08-23
申请号：EP04820579.3
申请日：2004-10-30
CPC分类号： C23C22/34 , B05D7/16 , B05D2202/00 , C08G8/28 , C09D5/12 , C23C22/361
摘要： The invention relates to a phenol-aldehyde resin containing the following constituents: a phenolic constituent without carboxyl groups, aromatic hydroxycarboxylic acid, and imidazole. The invention also relates to a method for producing one such resin, to the use thereof for the anti-corrosion treatment of bare metallic surfaces or metallic surfaces provided with a conversion layer; to an aqueous treatment solution for treating bare metallic surfaces or metallic surfaces provided with a conversion layer, said solution containing at least one inventive phenol-aldehyde resin; and to metallic strips, metallic parts or objects containing metallic parts, at least one surface thereof having been treated using one such method.
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公开(公告)号：EP1266047A1
公开(公告)日：2002-12-18
申请号：EP01927696.3
申请日：2001-02-23
CPC分类号： C23C22/364 , C23C22/34
摘要： The invention relates to a method for treating vehicle bodies or household appliances with an at least partially metallic surface, in such a way as to protect them from corrosion. Said metallic surface should consist of at least 90 % zinc, aluminium and/or magnesium and/or alloys of these metals with each other or with other alloy components, in relation to the metallic surface. According to said method, the vehicle bodies or household appliances are cleaned, passivated and coated. The invention is characterised in that for the purpose of passivation, the vehicle bodies or household appliances are brought into contact with an aqueous solution which has a pH-value of 1 to 12 and which contains such a quantity of complex fluorides of Ti, Zr, Hf, Si and/or B that the content of Ti, Zr, Hf, Si and/or B is 20 to 500 mg/l, and 50 to 2000 mg/l organic polymers, the composition of the aqueous solution being selected with a view to preventing the formation of a crystalline phosphate layer containing zinc on the metallic surface.
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公开(公告)号：EP1402083A1
公开(公告)日：2004-03-31
申请号：EP02780906.0
申请日：2002-06-21
CPC分类号： C23C22/08 , C23C22/34 , C23C22/36 , C23C22/361 , C23C22/83
摘要： The invention relates to an agent and method for carrying out the corrosion protection treatment of a metal surface. The invention is characterized in that the metal surface is brought into contact with a homopolymer or copolymer of vinyl pyrrolidone, whereby the application solution contains: a) 0.02 to 20 g/l phosphoric acid and/or at least one fluoro acid of one or more elements of the group Zr, Ti, Hf and Si or of each of their anions, and; b) 10 to 49.9 mg/l of a homopolymer or copolymer of vinyl pyrrolidone.
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公开(公告)号：EP1292719A1
公开(公告)日：2003-03-19
申请号：EP01957837.6
申请日：2001-06-09
CPC分类号： C23C22/34
摘要： The invention relates to an aqueous solution for producing a conversion coating on metal surfaces. The solution has a pH value of 1.5 to 6 and contains complex fluorides of Ti, Zr, Hf, Si and/or B in quantities corresponding to a Ti, Zr, Hf, Si and/or B content of 20 to 500 mg/l; and 0.1 to 2 g/l adhesion-promoting coating additives. The composition of the aqueous solution is selected with the aim of ensuring that no crystalline zincous phosphate layer appears on the metallic surface. The coating additive preferably contains an element M selected from the following: B, Al, Si, Ti and Zr. At least one hydroxyl group and or one or more organic radicals is/are preferably bonded to said element. The organic radical or organic radicals R is/are chosen, independently of each other, from hydrocarbon radicals with 3 to 16 C-atoms or radicals (CH2)x-Y, x meaning a whole number from 1 to 10 and Y representing a hydroxyl group, a mercapto group, a primary or secondary amino group, a carboxyl group, an acrylic or methacrylic acid radical or an oxirane group or a molecule fragment containing one or more of the aforementioned groups or acid radicals, respectively.
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8.发明公开
公开(公告)号：EP1208247A1
公开(公告)日：2002-05-29
申请号：EP00953020.5
申请日：2000-07-06
摘要： The invention relates to a method for the anticorrosive treatment or post-treatment of bright or phosphatized steel surfaces, galvanized or alloy-plated steel or aluminum and its alloys. According to the inventive method, the metal surfaces are contacted with an aqueous solution that contains 0.05 to 10 g/l complex fluorides of boron, silicon, titanium and/or zirconium and one or more phosphatization accelerators, preferably selected from m-nitrobenzene sulfonate ions, N-methylmorpholine-N-oxide and hydroxylamine.
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