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AU2001230209A1 - Anti-corrosive agents and method for protecting metal surfaces against corrosion - Google Patents

Anti-corrosive agents and method for protecting metal surfaces against corrosion

Info

Publication number
AU2001230209A1
AU2001230209A1 AU2001230209A AU3020901A AU2001230209A1 AU 2001230209 A1 AU2001230209 A1 AU 2001230209A1 AU 2001230209 A AU2001230209 A AU 2001230209A AU 3020901 A AU3020901 A AU 3020901A AU 2001230209 A1 AU2001230209 A1 AU 2001230209A1
Authority
AU
Australia
Prior art keywords
metal surfaces
against corrosion
surfaces against
corrosive agents
protecting metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2001230209A
Inventor
Alina Monica Koch
Bernd Schenzle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of AU2001230209A1 publication Critical patent/AU2001230209A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/68Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous solutions with pH between 6 and 8
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D139/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Coating compositions based on derivatives of such polymers
    • C09D139/04Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
    • C09D139/06Homopolymers or copolymers of N-vinyl-pyrrolidones
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/34Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/34Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
    • C23C22/36Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/34Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
    • C23C22/36Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates
    • C23C22/361Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates containing titanium, zirconium or hafnium compounds
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82After-treatment
    • C23C22/83Chemical after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a method for providing a metal surface with an anti-corrosion treatment. Said method is characterized in that the metal surface is brought into contact with a homo- or copolymer of vinylpyrrolidone. The invention also relates to a solution for application, containing a) 0.02 to 20 g/l phosphoric acid and/or at least one fluoro acid of one or more elements of the following group: Zr, Ti, Hf and Si; or their respective anions and b) 0.05 to 20 g/l of a homo or copolymer of vinylpyrrolidone; and to a concentrate for the same.
AU2001230209A 2000-02-07 2001-01-27 Anti-corrosive agents and method for protecting metal surfaces against corrosion Abandoned AU2001230209A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10005113 2000-02-07
DE10005113A DE10005113A1 (en) 2000-02-07 2000-02-07 Corrosion inhibitor and corrosion protection method for metal surfaces
PCT/EP2001/000885 WO2001059181A2 (en) 2000-02-07 2001-01-27 Anti-corrosive agents and method for protecting metal surfaces against corrosion

Publications (1)

Publication Number Publication Date
AU2001230209A1 true AU2001230209A1 (en) 2001-08-20

Family

ID=7629947

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001230209A Abandoned AU2001230209A1 (en) 2000-02-07 2001-01-27 Anti-corrosive agents and method for protecting metal surfaces against corrosion

Country Status (14)

Country Link
US (1) US20030138567A1 (en)
EP (1) EP1254279B1 (en)
JP (1) JP2003522833A (en)
CN (1) CN1271246C (en)
AT (1) ATE262053T1 (en)
AU (1) AU2001230209A1 (en)
BR (1) BR0108065A (en)
CA (1) CA2399446A1 (en)
DE (2) DE10005113A1 (en)
ES (1) ES2218375T3 (en)
MX (1) MXPA02005082A (en)
PT (1) PT1254279E (en)
TR (1) TR200401345T4 (en)
WO (1) WO2001059181A2 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10131723A1 (en) * 2001-06-30 2003-01-16 Henkel Kgaa Corrosion protection agents and corrosion protection processes for metal surfaces
JP4112219B2 (en) * 2001-12-07 2008-07-02 ミリオン化学株式会社 Surface treatment method for lithium-based magnesium alloy material
JP2004018867A (en) * 2002-06-12 2004-01-22 Nissan Motor Co Ltd Painting pretreatment equipment and painting pretreatment method
DE10310972A1 (en) * 2003-03-13 2004-09-23 Basf Ag Passivating layer on a metallic surface, prepared by precipitation of water-soluble, nitrogen-containing polymer at the metal surface upon addition of metal salt(s) at a pH of less than 7
DE10339165A1 (en) 2003-08-26 2005-03-24 Henkel Kgaa Colored conversion coatings on metal surfaces
DE10353149A1 (en) * 2003-11-14 2005-06-16 Henkel Kgaa Supplementary corrosion protection for components made of pre-coated metal sheets
DE10358310A1 (en) * 2003-12-11 2005-07-21 Henkel Kgaa Two-stage conversion treatment
DE102004022565A1 (en) * 2004-05-07 2005-12-22 Henkel Kgaa Colored conversion coatings on metal surfaces
DE102005023728A1 (en) 2005-05-23 2006-11-30 Basf Coatings Ag Lacquer-layer-forming corrosion inhibitor and method for its current-free application
DE102006021200A1 (en) 2006-05-06 2007-11-15 Byk-Chemie Gmbh Use of copolymers as adhesion promoters in paints
DE102006053291A1 (en) 2006-11-13 2008-05-15 Basf Coatings Ag Lacquer-layer-forming corrosion protection agent with good adhesion and method for its current-free application
DE102007005943A1 (en) 2007-02-01 2008-08-07 Henkel Ag & Co. Kgaa Metal pretreatment with luminescent pigments
US20090087671A1 (en) * 2007-09-27 2009-04-02 Ppg Industries Ohio, Inc. Coating compositions exhibiting corrosion resistance properties and methods of coil coating
JP4845050B2 (en) * 2007-10-04 2011-12-28 ユケン工業株式会社 Concentrated liquid composition for hexavalent chromium-free surface conversion treatment with improved stability
DE102007057185A1 (en) 2007-11-26 2009-05-28 Henkel Ag & Co. Kgaa Zirconium phosphating of metallic components, in particular iron
DE102009007632A1 (en) 2009-02-05 2010-08-12 Basf Coatings Ag Coating agent for corrosion-resistant coatings
US9347134B2 (en) 2010-06-04 2016-05-24 Prc-Desoto International, Inc. Corrosion resistant metallate compositions
CN103272284B (en) * 2013-05-24 2014-11-12 华南理工大学 Biological medical controllable all-degradable material and preparation method thereof
CN103286053B (en) * 2013-05-24 2015-01-28 华南理工大学 Biomedical material and preparation method thereof
CN103418035B (en) * 2013-07-19 2015-07-08 上海交通大学 Preparation method of surface coating capable of regulating degradation rate of magnesium alloy vascular stent
DE102015206812A1 (en) 2015-04-15 2016-10-20 Henkel Ag & Co. Kgaa Polymer-containing pre-rinse before a conversion treatment
PL3283668T3 (en) 2015-04-15 2020-05-18 Henkel Ag & Co. Kgaa Thin corrosion protective coatings incorporating polyamidoamine polymers
CN105694635A (en) * 2016-04-27 2016-06-22 柳州申通汽车科技有限公司 Automobile coating and processing technology thereof
JP7035021B2 (en) 2016-08-23 2022-03-14 ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェン Use of adhesion promoters obtained as reaction products of di- or polyamines with α, β-unsaturated carboxylic acid derivatives for metal surface treatment
MX2022015215A (en) * 2020-06-10 2023-01-04 Chemetall Gmbh AQUEOUS AND PHOSPHONATE-FREE STRIPPING COMPOSITIONS, AND THEIR USE.
CN114990557A (en) * 2022-05-23 2022-09-02 重庆工业职业技术学院 Corrosion inhibitor for carbon steel pickling
WO2025020030A1 (en) * 2023-07-24 2025-01-30 Henkel Ag & Co. Kgaa Alkaline cerium-based cr/p/f-free coating composition for metal surface pre-treatment
CN119709000B (en) * 2024-12-24 2025-10-10 中华制漆(深圳)有限公司 A thermal insulation coating and a preparation method thereof

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1933013C3 (en) * 1969-06-28 1978-09-21 Gerhard Collardin Gmbh, 5000 Koeln Process for the production of protective layers on aluminum, iron and zinc by means of solutions containing complex fluorides
US3912548A (en) * 1973-07-13 1975-10-14 Amchem Prod Method for treating metal surfaces with compositions comprising zirconium and a polymer
US4148670A (en) * 1976-04-05 1979-04-10 Amchem Products, Inc. Coating solution for metal surface
US4216032A (en) * 1978-09-27 1980-08-05 Stephen Gradowski Oil composition and method for treating phosphated metal surfaces
FR2516530B1 (en) * 1981-11-19 1985-12-06 Salkin Andre SURFACE PROTECTIVE AGENT AND SURFACE PROTECTED BY SAID AGENT
JPS6267181A (en) * 1985-09-19 1987-03-26 Nippon Parkerizing Co Ltd Chemical conversion treatment method for titanium or its alloy material
DE3540246A1 (en) * 1985-11-13 1987-05-14 Henkel Kgaa USE OF ALKOXYHYDROXY FATTY ACIDS AS CORROSION INHIBITORS IN OILS AND OIL-BASED EMULSIONS
US4711726A (en) * 1986-12-29 1987-12-08 Nalco Chemical Company Carboxylate N-vinylamide copolymers for internal scale control and passivation in high pressure boiler systems
FR2609725A1 (en) * 1987-01-21 1988-07-22 Nihon Parkerizing Aqueous solution for the treatment of chemical conversion of titanium or of its alloys
US5129967A (en) * 1988-05-03 1992-07-14 Betz Laboratories, Inc. Composition and method for non-chromate coating of aluminum
US4992116A (en) * 1989-04-21 1991-02-12 Henkel Corporation Method and composition for coating aluminum
DE4030523A1 (en) * 1990-09-27 1992-04-02 Henkel Kgaa CORROSIVE, ZINC-CONTAINING CORROSION PROTECTION AGENT AND METHOD FOR PRODUCING CORROSION PROTECTION LAYERS ON METAL SURFACES
DE19621184A1 (en) * 1996-05-28 1997-12-04 Henkel Kgaa Zinc phosphating with integrated post-passivation
JPH10182916A (en) * 1996-10-21 1998-07-07 Nippon Paint Co Ltd Acrylic resin-containing metal surface treatment composition containing N heterocycle, treatment method and treated metal material
US5891952A (en) * 1997-10-01 1999-04-06 Henkel Corporation Aqueous compositions containing polyphenol copolymers and processes for their preparation
US6802913B1 (en) * 1997-10-14 2004-10-12 Henkel Kommanditgesellschaft Aut Aktien Composition and process for multi-purpose treatment of metal surfaces
US6299795B1 (en) * 2000-01-18 2001-10-09 Praxair S.T. Technology, Inc. Polishing slurry

Also Published As

Publication number Publication date
WO2001059181A2 (en) 2001-08-16
DE10005113A1 (en) 2001-08-09
PT1254279E (en) 2004-08-31
BR0108065A (en) 2003-04-01
DE50101706D1 (en) 2004-04-22
EP1254279B1 (en) 2004-03-17
CA2399446A1 (en) 2001-08-16
CN1398306A (en) 2003-02-19
WO2001059181A3 (en) 2002-03-07
EP1254279A2 (en) 2002-11-06
MXPA02005082A (en) 2002-12-09
TR200401345T4 (en) 2004-08-23
ES2218375T3 (en) 2004-11-16
ATE262053T1 (en) 2004-04-15
US20030138567A1 (en) 2003-07-24
JP2003522833A (en) 2003-07-29
CN1271246C (en) 2006-08-23

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