WO2002028549A1 - Process for coating metal surfaces - Google Patents
Process for coating metal surfaces Download PDFInfo
- Publication number
- WO2002028549A1 WO2002028549A1 PCT/US2001/030571 US0130571W WO0228549A1 WO 2002028549 A1 WO2002028549 A1 WO 2002028549A1 US 0130571 W US0130571 W US 0130571W WO 0228549 A1 WO0228549 A1 WO 0228549A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- treatment liquid
- fluorometallate
- water
- substrate
- process according
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
-
- 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
- C23C22/34—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 fluorides or complex fluorides
-
- 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
- C23C22/73—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 characterised by the process
-
- 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
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12729—Group IIA metal-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12736—Al-base component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12785—Group IIB metal-base component
- Y10T428/12792—Zn-base component
Definitions
- This invention relates to processes for forming a protective coating on metal, particularly on: zinc, aluminum, magnesium, and/or zinc, magnesium, and/or aluminum alloy, more particularly aluminum and/or aluminum alloy surfaces.
- the invention is more particularly related to protective coatings that do not, in contrast to most protective coatings on metals, incorporate any substantial amounts of organic chemical substance.
- This type of coating is particularly useful for, but is not restricted to, use in heat exchanger surfaces, in which a substantially organic coating layer would impede heat transfer.
- the invention is also applicable to forming a completely inorganic intermediate coating which can then be further coated with other materials, including organic ones such as paint.
- a major object of this invention is to provide a process for forming completely inorganic and hexavalent-chromium-free coatings on metals that will have a protective value at least as good as those now in commercial use for heat exchanger surfaces.
- the coatings provided by the invention will also be at least one of low in cost, easy to manage in long continued use, easily wet by water (i.e., have a low contact angle with water), and high in heat conductivity.
- gram mole and the word itself and all of its grammatical variations may be used for any chemical species defined by all of the types and numbers of atoms present in it, irrespective of whether the species is ionic, neutral, unstable, hypothetical, or in fact a stable neutral substance with well defined molecules;
- the term "paint” and all of its grammatical variations include all materials known by more specialized names such as “lacquer”, “varnish”, “shellac”, “primer”, “electropaint”, “top coat”, “color coat”, “clear coat”, “autodeposited coatings”, “radiation curable coatings", “cross-linkable coatings”, and the like and their corresponding grammatical variations; and the terms “solution”, “soluble”, “homogeneous”, and the like are to be understood as including not only true equilibrium solutions or homogeneity but also dispersions that show no visually detectable tendency toward phase separation over a period of observation of at least 100, or preferably at least 1000, hours during which the material is mechanically undisturbed and
- the substrate Before a substrate undergoes the first essential operation of a process according to the invention, the substrate is preferably clean, and if the substrate is one of the metals such as aluminum and magnesium that are prone to spontaneous formation of thick oxide layers on their surfaces, it should also be deoxidized by processes known perse in the prior art, or other suitable processes.
- Cleaning may be accomplished by means already known in the art, based on the particular metal substrate being treated.
- the substrate is aluminum intended for heat exchanger functions as is most preferred, the substrate preferably is cleaned with a commercial aqueous alkaline cleaner for aluminum, rinsed, deoxidized, and again rinsed before undergoing the first essential operation of a process according to the invention.
- the first essential operation of a process according to this invention is contacting a metal substrate to be coated with a first treatment liquid comprising, preferably consisting essentially of, or more preferably consisting of, water and "fluorometallate", fluorometallate being defined as all substances with molecules corresponding to the following general empirical chemical formula (I):
- Hp7 independently-negative integer
- T represents a chemical atomic symbol selected from the group consisting of Ti, Zr, Hf, Si, Al, and B; ⁇ ' s at least 4; q is at least 1 and preferably is not more than, with increasing preference in the order given, 3, 2, or 1 ; unless T represents B, (r+s) is at least 6; s preferably is not more than, with increasing preference in the order given, 2, 1 , or 0; and (unless T represents A1) p preferably is not more than (2+s).
- the fluorometallate more preferably is selected from the group consisting of hexafluorotitanic acid, hexafluorozirconic acid, and the water soluble salts of both of these acids. Hexafluorozirconic acid and its salts are most preferred. Independently, at least for economy, acids are usually preferred over their salts as the source of any fluorometallate sourced to a first treatment liquid in a process according to this invention.
- the first treatment liquid in a process according to this invention optionally contains one or both of: (i) hydrofluoric acid and/or its salts, in a sufficient amount to minimize decomposition of the fluorometallate component; and/or (ii) another acidizing or alkalinizing agent as needed to result in a pH value for the first treatment liquid that is at least, with increasing preference in the order given, 1.0, 1.5, 2.0, 2.5, 3.0, 3.2, 3.4, 3.6, 3.8, or 4.0 and independently preferably is not more than, with increasing preference in the order given, 8.0, 7.0, 6.0, 5.5, 5.0, 4.8, 4.6,
- aqueous ammonia is most preferably used as the alkalinizing agent.
- the preferable concentration of the fluorometallate component is specified in terms of millimoles of the element(s) represented by 7 in general formula (I) above in each kilogram of the first treatment, and this concentration unit is hereinafter usually abbreviated as "m /kg".
- this concentration preferably is at least, with increasing preference in the order given, 07, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.4, or 5.7 mM/kg and independently, at least for economy preferably is not more than, with increasing preference in the order given, 100, 75, 50, 40, 30, 25, 20, 15, 12, 10, 8, 7.1 , 6.9, 6J, 6.5, 6.3, 6.1 , or 5.9 mM/kg.
- fluorometallates are susceptible to slow spontaneous decomposition to water insoluble oxides of the element represented by the symbol 7 in general formula (I). Such decomposition is particularly likely with the preferred fluorometallates that contain no oxygen and have an atomic ratio of fluorine to 7 of 6.
- the first treatment liquid in order to minimize such decomposition in a first treatment liquid as described above in which most or all of the fluorometallate content has no oxygen and has an F: 7 atomic ratio of 6, it is preferable for the first treatment liquid to include additional dissolved fluoride from another source than fluorometallate in an amount such that the F: 7 ratio for the first treatment liquid overall is at least, with increasing preference in the order given, 6.02:1.00, 6.04:1.00, 6.06:1.00, 6.08:1.00, 6.10:1.00, or 6.12:1.00.
- the overall atomic ratio of F:7 in a first treatment liquid as described above preferably is not more than, with increasing preference in the order given, 9.0:1.00, 8.0:1.00, 7.5:1.00, 7.0:1.00, 6.7:1.00, 6.4:1.00, 6.35:1.00, or 6.30:1.00.
- a first treatment liquid to be used in the first essential operation of a process according to the invention should be substantially free from many ingredients used in compositions for similar purposes in the prior art.
- a first liquid treatment as described above should contain no more than, with increasing preference in the order given, 1.0, 0.35, 0.10, 0.08, 0.04, 0.02,
- any of the following constituents (i) organically bonded carbon and (ii) any element having an atomic number that is greater than 14, except for an element that is part of a fluorometallate as described above or is an alkali metal or alkaline earth metal.
- a first liquid treatment as described above should contain no more than, with increasing preference in the order given, 1.0, 0.35, 0.10, 0.08, 0.04, 0.02, 0.01 , 0.001 , or 0.0002 percent of each of the following constituents: phosphate anions; hexavalent chromium; zinc, nickel, copper, manganese, and cobalt cations; products of reaction of fluorometallates with (i) dissolved or dispersed finely divided forms of metals and metalloid elements selected from the group of elements consisting of titanium, zirconium, hafnium, boron, aluminum, silicon, germanium, and tin and (ii) the oxides, hydroxides, and carbonates of said group of elements; water-soluble polymers and copolymers; polymers of the diglycidylether of bisphenol-A, optionally capped on the ends with non-polymerizable groups and/or having some of the epoxy groups hydrolyzed to hydroxyl groups; polymers and
- the first treatment liquid is preferably maintained during its contact with the substrate to be treated at a temperature that is at least, with increasing preference in the order given, 30, 35, 38, 41 , 43, 45, 47, or 49 °C and independently, at least for economy, preferably is not more than, with increasing preference in the order given, 90, 80, 70, 65, 60, 57, 55, 53, or 51 °C.
- the time of contact between the first treatment liquid and the metal surface being treated in the first essential operation of a process according to the invention preferably is at least, with increasing preference in the order given, 0.2, 0.4, 0.6, 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, or 2.0 minutes
- min (hereinafter usually abbreviated as "min") and independently, at least for economy of operation, preferably is not more than, with increasing preference in the order given, 30, 20, 10, 8, 6, 5.0, 4.0, 3.0, or 2.2 min.
- the surface of a metal substrate as modified by the first operation is preferably rinsed with water.
- the surface of a substrate modified by a first essential operation in a process according to the invention preferably is not dried or allowed to dry before being brought into contact with a second treatment liquid in the second essential operation of a process according to the invention.
- the second essential operation of a process according to this invention is contacting the surface of a metal substrate that has already been modified by contact in the first essential operation of a process according to the invention as described above with a second treatment liquid comprising, preferably consisting essentially of, or more preferably consisting of, water, vanadate ions, and the cations necessary to balance the electrical charge of the vanadate ions.
- a second treatment liquid comprising, preferably consisting essentially of, or more preferably consisting of, water, vanadate ions, and the cations necessary to balance the electrical charge of the vanadate ions.
- these cations are alkali metal and/or ammonium ions, because most other vanadates are insufficiently soluble in water. Vanadates of any degree of aggregation may be used, but decavanadates are most preferred.
- Decavanadates should be understood herein to include not only ions with the chemical formula V 10 O 2 8 ⁇ 6 which are present in salts but protonated derivatives thereof having the general formula V ⁇ 0 O( 2 8- /) (OH)f (6" ' ) , where / represents an integer from one to four, which are believed to be the predominant species present in aqueous solutions with a pH from 2 to 6.
- Na 2 (NH 4 ) 4 V ⁇ o ⁇ 2 8 is currently most particularly preferred as a source of decavanadate ions for a second treatment liquid as described above in the second essential operation of a process according to this invention, because this salt is the least costly commercially available source of decavanadate ions.
- the concentration of vanadium atoms present in vanadate ions in a second treatment liquid used in the second essential operation of a process according to this invention preferably is at least, with increasing preference in the order given, 0.02, 0.04, 0.06, 0.08, 0.10, 0.14, 0.17, 0.20, 0.22, 0.24, 0.26, 0.28, or 0.30 moles of vanadium atoms per kilogram of total second treatment liquid (this concentration unit being hereinafter usually abbreviated as "M/kg”) and independently, at least for economy, preferably is not more than, with increasing preference in the order given, 3.0, 2.0, 1.0, 0.80, 0.70, 0.60, 0.54, 0.49, 0.44, 0.40, 0.37, 0.35, 0.33, or 0.31 M/kg.
- contact between the metal substrate surface being treated and the second treatment liquid may be established by any convenient method.
- the temperature of the secondary treatment liquid, during contact with the previously treated and optionally rinsed metal substrate surface as described above preferably is at least, with increasing preference in the order given, 30, 35, 40, 45, 48, 51 , 53, 55, 57, or 59 °C and independently preferably is not more than, with increasing preference in the order given, 90, 80, 75, 72, 69, 67, 65, 63, or 61 °C.
- the time of contact between the second treatment liquid used in the second essential operation of a process according to this invention and the previously treated and optionally intermediately treated metal substrate as described above preferably is at least, with increasing preference in the order given, 0.1 , 0.3, 0.5, 0.7, 0.9, 1 ⁇ ,
- 60, 30, 15, 10, 8.0, 6.0, 5.0, 4.5, 4.0, 3.6, 3.2, 2.8, 2.5, 2.3, or 2.1 min For other temperatures during treatment in the second necessary operation of a process according to this invention, shorter times are preferred at higher temperatures and longer times at lower temperatures.
- a second treatment liquid according to the invention as defined above should be substantially free from many ingredients used in compositions for similar purposes in the prior art.
- a second treatment liquid used in the second essential operation of a process according to the invention should contain no more than 1.0, 0.35, 0.10, 0.08, 0.04, 0.02, 0.01 , 0.001 , or 0.0002, percent of any of the following constituents: hexavalent chromium, cyanide, nitrite ions, hydrogen peroxide, and tungsten in any anionic form.
- the treated metal surfaces preferably are again rinsed before drying or being allowed to dry.
- the temperature of the metal during drying preferably does not exceed, with increasing preference in the order given, 100, 85, 75, 66, or 60 °C, in order to avoid damage to the protective quality of the coating formed by a process according to the invention.
- the treated substrate After a process according to the invention has been completed on a metal substrate and the last treatment liquid of the process has been dried or otherwise removed, the treated substrate is usually ready for use. However, for appropriate uses, the corrosion protection of the metal substrate may be still further increased by painting over the surface formed by the process according to the invention.
- Aluminum alloy substrates were treated according to the following process sequence:
- the protective coating was formed by treatment with solutions prepared from BONDERITE ® 713 chromating concentrate, a commercial product of the Henkel Surface Technologies Division of Henkel Corporation, Madison Heights, Michigan, according to the manufacturer's directions. This is a typical example of a high quality chromate conversion coating recommended for treating aluminum that is to be used without painting or similar protective treatment.
- the protective coating was applied in three sub-operations.
- the substrate as prepared from the end of operation 4 was immersed for 2.0 min of contact with a solution in water of 0.12 % of H ⁇ ZrF ⁇ , a sufficient amount of fluoride from other sources to give a weight ratio of fluorine to zirconium that was about 1.29, sufficient ammonia to bring the pH value to 4.0, and no other deliberately added ingredients for Example 1.
- the treatment liquid in this sub-operation 5.1 was the same, except that it also contained 0.17 % of water soluble polymer made by reacting formaldehyde and N- methyl glucamine with poly-4-vinyl phenol.
- Example 2 the second sub-operation 5.2 was rinsing with tap water, and the third sub-operation was treatment with a solution containing 3.2 % of sodium ammonium decavanadate in water for 2.0 min at 60 °C.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Treatment Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA03002131A MXPA03002131A (en) | 2000-10-02 | 2001-10-01 | Process for coating metal surfaces. |
JP2002532369A JP2004510881A (en) | 2000-10-02 | 2001-10-01 | How to paint a metal surface |
EP01975593.3A EP1333939B1 (en) | 2000-10-02 | 2001-10-01 | Process for coating metal surfaces |
CA002424517A CA2424517A1 (en) | 2000-10-02 | 2001-10-01 | Process for coating metal surfaces |
AU2001294906A AU2001294906A1 (en) | 2000-10-02 | 2001-10-01 | Process for coating metal surfaces |
ES01975593T ES2424498T3 (en) | 2000-10-02 | 2001-10-01 | Procedure for coating metal surfaces |
US10/398,002 US7175882B2 (en) | 2000-10-02 | 2001-10-01 | Process for coating metal surfaces |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23728900P | 2000-10-02 | 2000-10-02 | |
US60/237,289 | 2000-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002028549A1 true WO2002028549A1 (en) | 2002-04-11 |
Family
ID=22893114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/030571 WO2002028549A1 (en) | 2000-10-02 | 2001-10-01 | Process for coating metal surfaces |
Country Status (8)
Country | Link |
---|---|
US (1) | US7175882B2 (en) |
EP (1) | EP1333939B1 (en) |
JP (1) | JP2004510881A (en) |
AU (1) | AU2001294906A1 (en) |
CA (1) | CA2424517A1 (en) |
ES (1) | ES2424498T3 (en) |
MX (1) | MXPA03002131A (en) |
WO (1) | WO2002028549A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR0317779B1 (en) * | 2003-01-10 | 2012-12-25 | coating composition. | |
US7063735B2 (en) * | 2003-01-10 | 2006-06-20 | Henkel Kommanditgesellschaft Auf Aktien | Coating composition |
JP4313750B2 (en) * | 2004-11-04 | 2009-08-12 | 新日本製鐵株式会社 | Steel columns with corrosion protection at the buried underground |
DE102005059314B4 (en) * | 2005-12-09 | 2018-11-22 | Henkel Ag & Co. Kgaa | Acid, chromium-free aqueous solution, its concentrate, and a process for the corrosion protection treatment of metal surfaces |
US8951362B2 (en) * | 2009-10-08 | 2015-02-10 | Ppg Industries Ohio, Inc. | Replenishing compositions and methods of replenishing pretreatment compositions |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1578237A1 (en) * | 1987-10-14 | 1990-07-15 | Предприятие П/Я Р-6401 | Method of forming wear-resistant coatings |
US4992115A (en) * | 1988-02-15 | 1991-02-12 | Nippon Paint Co., Ltd. | Surface treatment chemical and bath for aluminum and its alloy |
US5885373A (en) * | 1997-06-11 | 1999-03-23 | Henkel Corporation | Chromium free, low organic content post-rinse for conversion coatings |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2905535A1 (en) * | 1979-02-14 | 1980-09-04 | Metallgesellschaft Ag | METHOD FOR SURFACE TREATMENT OF METALS |
JPS56136978A (en) | 1980-03-26 | 1981-10-26 | Showa Alum Ind Kk | Chemically treating solution for aluminum or aluminum alloy |
KR100292447B1 (en) * | 1991-08-30 | 2001-06-01 | 웨인 씨. 제쉬크 | Method of forming protective modified coating on metal substrate surface |
US5769967A (en) * | 1992-04-01 | 1998-06-23 | Henkel Corporation | Composition and process for treating metal |
US5534082A (en) * | 1992-04-01 | 1996-07-09 | Henkel Corporation | Composition and process for treating metal |
US5281282A (en) * | 1992-04-01 | 1994-01-25 | Henkel Corporation | Composition and process for treating metal |
US5356490A (en) * | 1992-04-01 | 1994-10-18 | Henkel Corporation | Composition and process for treating metal |
US5449415A (en) * | 1993-07-30 | 1995-09-12 | Henkel Corporation | Composition and process for treating metals |
US5427632A (en) * | 1993-07-30 | 1995-06-27 | Henkel Corporation | Composition and process for treating metals |
US5993567A (en) * | 1995-01-13 | 1999-11-30 | Henkel Corporation | Compositions and processes for forming a solid adherent protective coating on metal surfaces |
AR001268A1 (en) * | 1995-03-22 | 1997-10-08 | Henkel Corp | Procedure to form a solid adherent protective coating on metal surfaces. |
US6193815B1 (en) * | 1995-06-30 | 2001-02-27 | Henkel Corporation | Composition and process for treating the surface of aluminiferous metals |
US6083309A (en) * | 1996-10-09 | 2000-07-04 | Natural Coating Systems, Llc | Group IV-A protective films for solid surfaces |
US5759244A (en) * | 1996-10-09 | 1998-06-02 | Natural Coating Systems, Llc | Chromate-free conversion coatings for metals |
US5952049A (en) * | 1996-10-09 | 1999-09-14 | Natural Coating Systems, Llc | Conversion coatings for metals using group IV-A metals in the presence of little or no fluoride and little or no chromium |
US5958511A (en) * | 1997-04-18 | 1999-09-28 | Henkel Corporation | Process for touching up pretreated metal surfaces |
ZA983867B (en) | 1997-05-16 | 1998-11-13 | Henkel Corp | Lithium and vanadium containing sealing composition and process therewith |
US6315823B1 (en) * | 1998-05-15 | 2001-11-13 | Henkel Corporation | Lithium and vanadium containing sealing composition and process therewith |
EP1136591A4 (en) * | 1998-10-15 | 2005-01-12 | Henkel Corp | Hydrophilizing agent for metallic material, hydrophilizing fluid, method of hydrophilizing, metallic material, and heat exchanger |
JP4008620B2 (en) * | 1999-06-04 | 2007-11-14 | カルソニックカンセイ株式会社 | Aluminum alloy heat exchanger |
-
2001
- 2001-10-01 CA CA002424517A patent/CA2424517A1/en not_active Abandoned
- 2001-10-01 MX MXPA03002131A patent/MXPA03002131A/en not_active Application Discontinuation
- 2001-10-01 AU AU2001294906A patent/AU2001294906A1/en not_active Abandoned
- 2001-10-01 JP JP2002532369A patent/JP2004510881A/en active Pending
- 2001-10-01 US US10/398,002 patent/US7175882B2/en not_active Expired - Lifetime
- 2001-10-01 EP EP01975593.3A patent/EP1333939B1/en not_active Expired - Lifetime
- 2001-10-01 ES ES01975593T patent/ES2424498T3/en not_active Expired - Lifetime
- 2001-10-01 WO PCT/US2001/030571 patent/WO2002028549A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1578237A1 (en) * | 1987-10-14 | 1990-07-15 | Предприятие П/Я Р-6401 | Method of forming wear-resistant coatings |
US4992115A (en) * | 1988-02-15 | 1991-02-12 | Nippon Paint Co., Ltd. | Surface treatment chemical and bath for aluminum and its alloy |
US5885373A (en) * | 1997-06-11 | 1999-03-23 | Henkel Corporation | Chromium free, low organic content post-rinse for conversion coatings |
Non-Patent Citations (1)
Title |
---|
See also references of EP1333939A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20040025973A1 (en) | 2004-02-12 |
EP1333939A1 (en) | 2003-08-13 |
EP1333939A4 (en) | 2009-08-05 |
US7175882B2 (en) | 2007-02-13 |
CA2424517A1 (en) | 2002-04-11 |
EP1333939B1 (en) | 2013-05-08 |
AU2001294906A1 (en) | 2002-04-15 |
MXPA03002131A (en) | 2004-12-13 |
ES2424498T3 (en) | 2013-10-02 |
JP2004510881A (en) | 2004-04-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0739428B1 (en) | Composition and process for treating metal | |
JP3278472B2 (en) | Phosphate conversion coating compositions and methods | |
US6193815B1 (en) | Composition and process for treating the surface of aluminiferous metals | |
US5885373A (en) | Chromium free, low organic content post-rinse for conversion coatings | |
JP6281990B2 (en) | Improved trivalent chromium-containing composition for aluminum and aluminum alloys | |
US4422886A (en) | Surface treatment for aluminum and aluminum alloys | |
US5807442A (en) | Chromate passivating and storage stable concentrate solutions therefor | |
US6743302B2 (en) | Dry-in-place zinc phosphating compositions including adhesion-promoting polymers | |
JPH07126859A (en) | Hexavalent chromium-free surface treating agent for chemical conversion for aluminum and aluminum alloy | |
WO1997017480A1 (en) | Finely crystalline and/or fast phosphate conversion coating composition and process | |
KR0179685B1 (en) | Surface treating composition for metallic material containing aluminum and surface treatment | |
US4391652A (en) | Surface treatment for aluminum and aluminum alloys | |
EP1333939B1 (en) | Process for coating metal surfaces | |
JP2010511785A (en) | High peroxide self-deposition bath | |
EP1037719B1 (en) | Composition and process for multi-purpose treatment of metal surfaces | |
US6315823B1 (en) | Lithium and vanadium containing sealing composition and process therewith | |
WO2003097899A2 (en) | Non-chromate conversion coating compositions, process for conversion coating metals, and articles so coated | |
US6200693B1 (en) | Water-based liquid treatment for aluminum and its alloys | |
EP1009867A1 (en) | Lithium and vanadium containing sealing composition and process therewith | |
AU744557B2 (en) | Water-based liquid treatment for aluminum and its alloys | |
USH2014H1 (en) | Process and composition for forming an adherent paint or vitreous enamel coating on steel | |
CA2161247A1 (en) | Hydrophilicizing sealer treatment for metal objects | |
MXPA98008736A (en) | Passive with chrome and, for the same, solutions concentrated, stable in storage |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2003/002131 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2002532369 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2424517 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2001975593 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2001975593 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10398002 Country of ref document: US |