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EP0610315A1 - Traitement de formation d'une couche mince resistant a la corrosion sur des surfaces metalliques - Google Patents

Traitement de formation d'une couche mince resistant a la corrosion sur des surfaces metalliques

Info

Publication number
EP0610315A1
EP0610315A1 EP92922276A EP92922276A EP0610315A1 EP 0610315 A1 EP0610315 A1 EP 0610315A1 EP 92922276 A EP92922276 A EP 92922276A EP 92922276 A EP92922276 A EP 92922276A EP 0610315 A1 EP0610315 A1 EP 0610315A1
Authority
EP
European Patent Office
Prior art keywords
phosphate
cationic
metal
treatment
salt
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.)
Withdrawn
Application number
EP92922276A
Other languages
German (de)
English (en)
Inventor
Osamu 20-4 Nakao-Cho Asahi-Ku Furuyama
Ryoji 3-8-611 Ohara Morita
Hitoshi 203 Coopo-Ato Ishii
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 Corp
Original Assignee
Henkel Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36791816&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0610315(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Henkel Corp filed Critical Henkel Corp
Publication of EP0610315A1 publication Critical patent/EP0610315A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING 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
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23C—COATING 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
    • C23C22/00—Chemical 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
    • C23C22/05—Chemical 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
    • C23C22/06—Chemical 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
    • C23C22/07—Chemical 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 phosphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23C—COATING 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
    • C23C22/00—Chemical 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
    • C23C22/05—Chemical 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
    • C23C22/06—Chemical 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
    • C23C22/07—Chemical 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 phosphates
    • C23C22/08—Orthophosphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23C—COATING 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
    • C23C22/00—Chemical 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
    • C23C22/05—Chemical 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
    • C23C22/06—Chemical 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
    • C23C22/07—Chemical 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 phosphates
    • C23C22/08—Orthophosphates
    • C23C22/12—Orthophosphates containing zinc cations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2301/00—Inorganic additives or organic salts thereof
    • B05D2301/10—Phosphates, phosphoric acid or organic salts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/51—One specific pretreatment, e.g. phosphatation, chromatation, in combination with one specific coating

Definitions

  • the present invention relates to a novel treatment ag ⁇ ent that forms a strongly corrosion-resistant film on the surface of metals such as iron, zinc, aluminum, and the like. This film is also an excellent paint undercoat.
  • SUBSTITUTESHEET tion materials In the case of automobile bodies, a zinc phosphate film is formed on the metal surface, which is then immersed in aqueous paint for electrodeposition coat ⁇ ing.
  • This coating operation is a type of primer coating, and its purpose is to increase the corrosion resistance of the painted surface and to secure corrosion resistance for the interior surfaces of the automobile body, which can be difficult to finish coat.
  • a primer coating is similarly applied on construction materials prior to finish coating in order to increase the corrosion resistance.
  • the present invention takes as its object the introduction of a metal-surface-treatment agent that can impart a high corrosion resistance and paint adherence to metals that are suitable for phosphate film treatment, such as iron, zinc, aluminum, and the like (hereinafter briefly denoted simply as "metal") .
  • metal a metal-surface-treatment agent that permits the omission of primer coating while at the same time retaining the level of corrosion resistance currently available.
  • a film that exhibits the highly desirable properties specified above can be formed by treating the metal surface with a treatment agent for the formation of a film on metal surfaces, wherein said treatment agent characteristically comprises a phosphate surface treatment bath j hich contains a cationic organic polymeric compound (or salt thereof) that contains at least 1 cationic nitro ⁇ gen atom and has a molecular weight of 1,000 to 1,000,000.
  • the film according to the present invention preferably is a composite film in which the resin composed of the cation ⁇ ic organic compound (or salt thereof) has penetrated into the grain boundaries between phosphate crystals with an accompanying formation of a phosphate crystal/resin com ⁇ posite.
  • the surface treatment agent according to the present invention comprises the solution or stable dispersion of a cationic organic polymeric compound (or salt thereof) in a phosphate treatment bath.
  • Said phosphate treatment bath comprises any surface-treatment bath that is capable of forming a phosphate film on the surface of a metal such as iron, zinc, aluminum, etc. , either for a single species of metal alone or simultaneously on the surfaces of two or more species of the preceding metals.
  • its es ⁇ sential components are zinc ions and phosphate ions, but it may optionally contain nitrate ions, other metal ions (nickel, manganese, calcium, and the like), fluoride, and various types of oxidants.
  • the phosphate treat ⁇ ment bath is not specifically restricted within the context of the present invention, and the present invention encom- passes all known phosphate treatment baths.
  • the cationic organic polymeric compound should contain at least 1 cationic nitrogen atom and should have a molecu ⁇ lar weight of 1,000 to 1,000,000.
  • organic polymers are particularly preferred that have a resin skeleton comprising at least one selection from epoxy resins, urethane resins, polybutadiene resins, acryl ⁇ ic resins, and maleic anhydride resins, wherein these resins contain a cationic nitrogen-containing group.
  • the salts of the cationic organic polymeric compound encompass its inorganic salts and organic salts.
  • the inor ⁇ ganic salts are exemplified by phosphate, nitrate, sulfate, and the like, and the organic salts are exemplified by ace- tate, propionate, glyconate, and the like.
  • a single spe ⁇ cies or two or more species of this cationic organic poly ⁇ meric compound (or salt thereof) can be employed. Only a weak improvement in corrosion resistance is obtained at molecular weights below 1,000, while it is very difficult to obtain dissolution or stable dispersion in zinc phos ⁇ phate baths at molecular weights in excess of 1,000,000.
  • paint additives such as pigment and the like
  • other types of resins, activators, and the like may be added on an optional basis.
  • the present invention can employ conversion treat ⁇ ment by spray or immersion as well as electrolytic metho ⁇ dologies, and the treatment agent according to the present invention is not limited to a particular treatment method. Examples
  • T x salt-spray test (JIS Z 2371) : 24 hours
  • T 2 wetting test (50° C, 70 % RH) : 216 hours
  • Tables 2, 3, and 4 report the paint adherence and cor- rosion resistance of the films obtained by surface treat ⁇ ment, respectively, of cold-rolled steel sheet, electrogal- vanized steel sheet, and aluminum sheet. These tables also include the results for the comparison examples.
  • the results confirm a remarkable im ⁇ provement in corrosion resistance and paint adherence over phosphate treatment.
  • the present invention exhibits a perform- ance approximately equivalent to the application of a pri ⁇ mer coat on phosphate film.
  • the metal surface treatment agent for composite film formation in accordance with the invention increases the corrosion resistance and paint ad ⁇ herence and makes possible the omission of primer coating.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

Un bain phosphaté de traitement de surface contenant un composé polymère organique cationique (ou un sel de celui-ci) comprenant au moins un atome d'azote cationique et ayant une masse moléculaire comprise entre 1.000 et 1.000.000 forme une couche mince hautement résistante à la corrosion sur des surfaces en métal (par exemple du fer, du zinc, de l'aluminium etc.), constituant également une excellente sous-couche de peinture. La couche mince est de préférence du type dans lequel la résine composée dudit composé organique cationique (ou son sel) a pénétré dans les limites de grains entre des cristaux de phosphate, avec une formation conjointe d'un composite de cristaux phosphatés/résine. Une couche mince formée selon l'invention permet une amélioration remarquable de la résistance à la corrosion et de l'adhérence de la peinture, comparée à la conversion de phosphates obtenus avec le même traitement, excepté pour l'omission du polymère organique contenant de l'azote cationique. De plus, même lorsque l'on omet l'étape d'application de la première couche, l'invention se caractérise par un rendement approximativement équivalent à celui de l'application d'une première couche sur une couche mince phosphatée classique.
EP92922276A 1991-10-29 1992-10-22 Traitement de formation d'une couche mince resistant a la corrosion sur des surfaces metalliques Withdrawn EP0610315A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP308227/91 1991-10-29
JP03308227A JP3139795B2 (ja) 1991-10-29 1991-10-29 複合皮膜形成用金属表面処理剤
PCT/US1992/008811 WO1993009265A1 (fr) 1991-10-29 1992-10-22 Traitement de formation d'une couche mince resistant a la corrosion sur des surfaces metalliques
CN92112560A CN1086269A (zh) 1991-10-29 1992-10-29 在金属表面形成耐蚀膜的处理方法

Publications (1)

Publication Number Publication Date
EP0610315A1 true EP0610315A1 (fr) 1994-08-17

Family

ID=36791816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92922276A Withdrawn EP0610315A1 (fr) 1991-10-29 1992-10-22 Traitement de formation d'une couche mince resistant a la corrosion sur des surfaces metalliques

Country Status (10)

Country Link
EP (1) EP0610315A1 (fr)
JP (1) JP3139795B2 (fr)
CN (1) CN1086269A (fr)
AU (1) AU2884192A (fr)
BR (1) BR9206685A (fr)
CA (1) CA2121486A1 (fr)
MX (1) MX9206223A (fr)
NZ (1) NZ244928A (fr)
WO (1) WO1993009265A1 (fr)
ZA (1) ZA928377B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0746637A4 (fr) * 1993-01-13 1995-09-14 Henkel Corp Composition et procede de traitement de metal

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5306526A (en) * 1992-04-02 1994-04-26 Ppg Industries, Inc. Method of treating nonferrous metal surfaces by means of an acid activating agent and an organophosphate or organophosphonate and substrates treated by such method
DE4341602A1 (de) * 1993-12-07 1995-06-08 Bayer Ag Verwendung einer Polyurethandispersion als Penetrationsgrund und ein Verfahren zur Herstellung von Mehrschichtlackierungen
JPH101782A (ja) * 1996-06-13 1998-01-06 Nippon Paint Co Ltd 金属表面処理剤、処理方法及び表面処理された金属材料
JPH1046101A (ja) * 1996-08-01 1998-02-17 Nippon Parkerizing Co Ltd 金属材料の表面にフィルムラミネート用下地皮膜を形成させた被覆金属材料、およびその製造方法
WO1998017735A1 (fr) 1996-10-21 1998-04-30 Nippon Paint Co., Ltd. Composition de traitement de surface metallique contenant une resine acrylique, procede de traitement et metaux ainsi traites
JPH10182916A (ja) * 1996-10-21 1998-07-07 Nippon Paint Co Ltd Ｎ複素環を含むアクリル樹脂含有金属表面処理組成物、処理方法及び処理金属材料
FR2769325B1 (fr) * 1997-10-08 1999-12-03 Cfpi Ind Bain acide pour la phosphatation au zinc de substrats metalliques, concentre pour la preparation du bain et procede de phosphatation le mettant en oeuvre
US5972433A (en) * 1997-12-05 1999-10-26 Calgon Corporation Method for treatment of metal substrates using Mannich-derived polyethers
FR2837209B1 (fr) * 2002-03-13 2004-06-18 Rhodia Chimie Sa Utilisation de copolymers a blocs portant des fonctions phosphates et/ou phosphonates comme promoteurs d'adhesion ou comme agents de protection contre la corrosion d'une surface metallique
JP2008057047A (ja) * 2002-06-28 2008-03-13 Jfe Steel Kk 表面処理亜鉛系めっき鋼板の製造方法
ES2316706T3 (es) 2002-12-24 2009-04-16 Chemetall Gmbh Metodo de pre-tratamiento para revestir.
JP4989842B2 (ja) * 2002-12-24 2012-08-01 日本ペイント株式会社 塗装前処理方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159511B (en) * 1984-04-25 1988-09-21 Dearborn Chemicals Ltd A method of inhibiting corrosion in aqueous systems
US4978399A (en) * 1988-01-04 1990-12-18 Kao Corporation Metal surface treatment with an aqueous solution
DE3906898A1 (de) * 1989-03-03 1990-09-06 Henkel Kgaa Zink-barium-phosphatierung von metalloberflaechen
JPH04193957A (ja) * 1990-11-28 1992-07-14 Nippon Parkerizing Co Ltd クリヤー塗装下地用クロメート処理液

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9309265A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0746637A4 (fr) * 1993-01-13 1995-09-14 Henkel Corp Composition et procede de traitement de metal

Also Published As

Publication number Publication date
ZA928377B (en) 1993-05-14
JPH05117869A (ja) 1993-05-14
MX9206223A (es) 1993-11-30
WO1993009265A1 (fr) 1993-05-13
CN1086269A (zh) 1994-05-04
NZ244928A (en) 1994-10-26
AU2884192A (en) 1993-06-07
CA2121486A1 (fr) 1993-05-13
BR9206685A (pt) 1995-10-24
JP3139795B2 (ja) 2001-03-05

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