US3185596A - Method of coating metal - Google Patents

Method of coating metal Download PDF

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Publication number
US3185596A
US3185596A US225149A US22514962A US3185596A US 3185596 A US3185596 A US 3185596A US 225149 A US225149 A US 225149A US 22514962 A US22514962 A US 22514962A US 3185596 A US3185596 A US 3185596A
Authority
US
United States
Prior art keywords
coating
acid
solution
chromium
bath
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.)
Expired - Lifetime
Application number
US225149A
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English (en)
Inventor
Schiffman Louis
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
Amchem Products Inc
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
Priority to BE637664D priority Critical patent/BE637664A/xx
Priority to NL298106D priority patent/NL298106A/xx
Priority to DENDAT1250233D priority patent/DE1250233B/de
Priority to NL270080D priority patent/NL270080A/xx
Priority claimed from US61398A external-priority patent/US3063877A/en
Priority to GB34766/61A priority patent/GB936937A/en
Priority to DEA38515A priority patent/DE1219765B/de
Priority to FR875531A priority patent/FR1303317A/fr
Application filed by Amchem Products Inc filed Critical Amchem Products Inc
Priority to US225149A priority patent/US3185596A/en
Priority to US225876A priority patent/US3189488A/en
Priority to US225879A priority patent/US3189489A/en
Priority to GB35867/63A priority patent/GB1027548A/en
Priority to FR948199A priority patent/FR84488E/fr
Publication of US3185596A publication Critical patent/US3185596A/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C09D133/00—Coating 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • 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
    • C23C22/24—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 hexavalent chromium compounds
    • C23C22/30—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 hexavalent chromium compounds containing also trivalent chromium
    • 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
    • C23C22/24—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 hexavalent chromium compounds
    • C23C22/33—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 hexavalent chromium compounds containing also phosphates

Definitions

  • the principal object of the present invention is to provide an improved method as well as improved solutions for applying resinous, protective, flexible and impactresistant paint-bonding coatings on the surfaces of ferriferous, zinciferous and aluminiferous surfaces.
  • Another object is to produce articles having a final siccative finish which are greatly improved as to appearance, corrosiou resistance and longevity.
  • Solutions of such chromium compounds were referred to in the said application and will be hereinafter referred to as solutions of mixed chromium compounds and the preferred manner of preparing them, as disclosed in the said application, is by reacting an aqueous solution con- 'sisting essentially of from 50 to 800 g./l. of hexavalent chromium compound, expressed as CrO with from 0.03
  • the polyacrylic acid compound may include both water soluble as well as water dispersible types.
  • the word solution is to be understood as meaning dispersions as well asaqueous solutions.
  • Water soluble types are readily available as standard articles of commerce, among which are the products known under the proprietary name of Acrysol.
  • aqueous solutions of p-olyacrylic acids having different molecular Weights and viscosities are designated as AcrysolA-l and Acrysol-A-3.
  • Water dispersible emulsions of polyacrylic acids are also commercially available and among these are those known as the Rhoplex AC-ZOO emulsions.
  • alkali metal a'nd7or -prepared from all acid systems are also commercially available and among these are those known as the Rhoplex AC-ZOO emulsions.
  • ammonium salts of polyacrylic acids are also available from various commercial sources.
  • Acrysol and Rhoplex are trademarks registered in the name of the Rohm & Haas Company.
  • polyacrylic acid compounds In addition to the polyacrylic acid compounds noted just above there also exist aqueous emulsions of acrylic esters called polymer latices such as those available under the designation EDX1, the latter being the trademark of the Reichold Chemical Company.
  • polymer latices such as those available under the designation EDX1, the latter being the trademark of the Reichold Chemical Company.
  • the minimum amount of mixed chromium compounds which must be present in the aque ous coating solutions of this invention is 0.25% by weight of the coating solution. Where less than 0.25% by weight of these mixed chromium compounds is utilized, the subsequently produced coatings will not provide the increased corrosion resistance otherwise obtainable by use of the teachings of this invention.
  • polyacrylic acid content is concerned, this also must be present, as noted hereinabove, in an amount of at least 0.25% by weight of the coating solution. If less than 0.25% of polyacrylic acids are employed, no substantial improvement in coating properties will be realized. So far as the upper limit of polyacrylic acid is concerned, it has been found that no additional improvement, over those obtained initially, is experienced by the useof more than about by weight of the polyacrylic acids based upon the weight of the coating solutions. A preferred upper limit of 2% (by weight based onthe weight of the coating solution) of polyacrylic acids has been found on the basis of optimum results consistent with maximum economy of operation.
  • the amount of mixed chromium compounds used may be as much as 10 parts thereof for each part of polyacrylic acid, it has been found, in the interests of economy, and to secure maximum efiiciency of operation, that the amount of mixed chromium compounds should range from about 0.5 part to about 5 parts thereof for each part of polyacrylic acid employed in the coating solution.
  • the solution pH be maintained below about 2.3 since this pH level has been found to minimize substantially or to eliminate precipitation tendencies.
  • the pH control may be accomplished through the addition of small increments of phosphoric or formic acids, and optimum blending is obtained when brisk agitation is employed throughout the mixing operation.
  • compatible co-solvents may be added to the coating solutions of the present invention in order to improve the spreadability and viscosity flow characteristics thereof.
  • co-solvents which have been found to be especially suitable for use in this respect include aliphatic alcohols and ketones containing up to four carbon atoms, and aliphatic ether alcohols containing from 4 to 8 total carbon atoms. Typical examples of these are the methyl, ethyl and buty-l alcohols, acetone, methylethyl ketone, and the mono and diethyl, propyl and butyl ethers of ethylene glycol.
  • the amount of co-s'olvent to be employed may range on the surface to be treated it is preferable to apply a solvent cleaning agent before the solution is applied. If
  • the metal to be coated is heavily contaminated with oil or dirt a stronger cleaning agent, such for example as sodium orthosilicate is preferably employed.
  • a stronger cleaning agent such for example as sodium orthosilicate is preferably employed.
  • the cleaning stage itself forms nospecific part of the present invention so it will suffice to state that conventional cleaning operations familiar in the art will be adequate for the purposes of this invention.
  • the coating solution is preferably applied at average living room temperatures, i.e., in the neighborhood of 72 P. which obviates a need for maintaining heated coating baths and heating equipment. Nevertheless, if desired, the baths of this invention may be applied at elevated temperatures without deleterious effect upon the quality of the resulting coatings.
  • the baths may be applied to the metal surfaces by dip, spray or roller coating techniques, the important consideration, of course, being that the entire surface area be adequately and thoroughly wetted by the bath.
  • a suitable wetting agent While various cationic, anionic or non-ionic Wetting agents have been found to be suitable for use in this respect, the preferred types are the non-ionics, typical of which are the polyethoxylated alkyl phenols containing from 6 to 12 ethylene groups, and from 8 to 9 carbon atoms in the alkyl group.
  • the surface should be subjected to a drying operation.
  • This drying serves to cure the mixed organic-inorganic coating and, of course, the length of the drying step will depend upon the temperature utilized. Naturally, if the temperature is rather low a relatively long period of time will be necessary to effect a complete cure whereas, if the temperature is somewhat elevated, the drying and curing can be accomplished in less time.
  • a preferred range of temperatures for the drying operation lies anywhere from about 200 to 350 F. because it has been found that temperatures within this range yield especially good results.
  • a coating produced in the manner just described is extremely useful per se and for some purposes will be all that is required.
  • a siccative finish is generally applied to the coated surface and where this is desired the following technique may be employed.
  • the coated surface preferably, is at least surface dried but before drying is sufficiently complete to effect the required .cure, the siccative film may .be app-lied, following which a single baking step may be employed which will serve to completely cure the coating of the present invention while simultaneously effecting the'customary baking of the siccative finish.
  • drying temperature is from approximately 200 to 350 F.
  • drying temperature is from approximately 200 to 350 F.
  • An aqueous solution for coating metal surfaces consist essentially of I (1) .at least 0.25% by weight of reaction products derived from the admixture of an aqueous acid solution consisting essentially of from about 50 to about 800 gms./liter of hexavalent chromium, expressed as CrO with from about 0.03 mol to about 1 mol of formaldehyde, expressed as HCHO, for every mol of hexavalent chromium and (2) at least 0.25% by weight of water-soluble and water-dispersible polyacrylic acid compound chosen from the class which consists of the said acid, the alkali metal and ammonium salts thereof and aqueous emulsions of acrylic esters known as polymer latices.
  • component (2) consists of acid components from the said class.

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  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Chemical Treatment Of Metals (AREA)
US225149A 1960-10-10 1962-09-20 Method of coating metal Expired - Lifetime US3185596A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
BE637664D BE637664A (ja) 1960-10-10
NL298106D NL298106A (ja) 1960-10-10
DENDAT1250233D DE1250233B (de) 1960-10-10 Verfahren zum Passivieren von Metalloberflachen
NL270080D NL270080A (ja) 1960-10-10
GB34766/61A GB936937A (en) 1960-10-10 1961-09-27 Solutions for treating metal surfaces, either bare or chemically-coated, to improve their corrosion resistance, methods of preparing such solutions, and treatment processes in which they are employed
DEA38515A DE1219765B (de) 1960-10-10 1961-10-07 Verfahren zum Passivieren von Metalloberflaechen
FR875531A FR1303317A (fr) 1960-10-10 1961-10-10 Perfectionnements apportés aux solutions pour le traitement de surfaces métalliques en vue d'améliorer leur résistance à la corrosion, et aux procédés pour la préparation et l'utilisation de telles solutions
US225149A US3185596A (en) 1960-10-10 1962-09-20 Method of coating metal
US225876A US3189488A (en) 1960-10-10 1962-09-24 Solutions and method for coating metal surfaces
US225879A US3189489A (en) 1960-10-10 1962-09-24 Method and solutions for treating metal surfaces
GB35867/63A GB1027548A (en) 1960-10-10 1963-09-11 Novel solutions and processes for the coating of metal surfaces
FR948199A FR84488E (fr) 1960-10-10 1963-09-20 Perfectionnements apportés aux solutions pour le traitement de surfacés métalliques en vue d'améliorer leur résistance à la corrosion, et aux procédés pour la préparation et l'utilisation de telles solutions

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US61398A US3063877A (en) 1960-10-10 1960-10-10 Method and solutions for treating metal surfaces
US225149A US3185596A (en) 1960-10-10 1962-09-20 Method of coating metal
US225876A US3189488A (en) 1960-10-10 1962-09-24 Solutions and method for coating metal surfaces
US225879A US3189489A (en) 1960-10-10 1962-09-24 Method and solutions for treating metal surfaces

Publications (1)

Publication Number Publication Date
US3185596A true US3185596A (en) 1965-05-25

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US225149A Expired - Lifetime US3185596A (en) 1960-10-10 1962-09-20 Method of coating metal
US225879A Expired - Lifetime US3189489A (en) 1960-10-10 1962-09-24 Method and solutions for treating metal surfaces
US225876A Expired - Lifetime US3189488A (en) 1960-10-10 1962-09-24 Solutions and method for coating metal surfaces

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US225879A Expired - Lifetime US3189489A (en) 1960-10-10 1962-09-24 Method and solutions for treating metal surfaces
US225876A Expired - Lifetime US3189488A (en) 1960-10-10 1962-09-24 Solutions and method for coating metal surfaces

Country Status (5)

Country Link
US (3) US3185596A (ja)
BE (1) BE637664A (ja)
DE (2) DE1219765B (ja)
GB (2) GB936937A (ja)
NL (2) NL298106A (ja)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290235A (en) * 1965-12-02 1966-12-06 Glidden Co Electrodeposition of acidic resin with subsequent anodic electrolysis in dispersioncontaining metal treating oxyanions
US3351504A (en) * 1963-10-09 1967-11-07 Internat Protected Metals Inc Method of bonding coatings
US3420715A (en) * 1965-06-04 1969-01-07 Cons Foods Corp Additive for phosphate coating solution
US3421949A (en) * 1964-08-12 1969-01-14 Hooker Chemical Corp Composition and process for producing an electrically resistant coating on ferrous surfaces
US3466207A (en) * 1967-07-19 1969-09-09 Dow Chemical Co Treatment of metals for promoting adhesion of polyolefins
US3709743A (en) * 1969-11-28 1973-01-09 Celanese Coatings Co Acidic deposition process
US3791431A (en) * 1966-06-01 1974-02-12 Amchem Prod Process for coating metals
DE2409897A1 (de) * 1971-03-10 1974-09-26 Amchem Prod Verfahren und massen zum ueberziehen von metallen
US4067837A (en) * 1974-09-12 1978-01-10 J. M. Eltzroth & Associates, Inc. Coating compositions
US4138276A (en) * 1976-03-01 1979-02-06 J. M. Eltzroth & Associates, Inc. Coating compositions
US4183772A (en) * 1978-01-30 1980-01-15 Union Carbide Corporation Composition and method for coating metal surfaces
FR2508476A1 (fr) * 1981-06-24 1982-12-31 Amchem Prod Composition a base de resine acrylique, de chrome et d'agent tensio-actif, son procede de preparation et son application pour former des revetements de surfaces metalliques
US4475957A (en) * 1983-10-17 1984-10-09 Amchem Products, Inc. Coating composition
US4559088A (en) * 1984-05-15 1985-12-17 Amchem Products, Inc. Rust preventatives
US5039360A (en) * 1986-10-21 1991-08-13 Procoat S.A. Method for coating hot metal surfaces
US5092924A (en) * 1988-12-07 1992-03-03 Novamax Technologies Corporation Composition and process for coating metallic surfaces
US5321061A (en) * 1992-06-29 1994-06-14 Morton Coatings, Inc. Universally paintable passivated galvanized steel
US5378291A (en) * 1990-01-23 1995-01-03 Nihon Parkerizing Co., Ltd. Coating composition for metal
US5702759A (en) * 1994-12-23 1997-12-30 Henkel Corporation Applicator for flowable materials
US5851371A (en) * 1995-02-28 1998-12-22 Henkel Corporation Reducing or avoiding surface irregularities in electrophoretic painting of phosphated metal surfaces

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US3505128A (en) * 1964-10-07 1970-04-07 Yawata Seitetsu Kk Aqueous metal-coating composition
DE2046449C3 (de) * 1970-09-21 1975-09-18 Mecano-Bundy Gmbh, 6900 Heidelberg Verfahren und Vorrichtung zum Aufbringen von Schutzüberzügen auf Metallgegenstände n sowie Anwendung des Verfahrens
US3907608A (en) * 1971-08-19 1975-09-23 Diamond Shamrock Corp Coated metal and method
US3940280A (en) * 1972-04-21 1976-02-24 Diamond Shamrock Corporation Concentrate for liquid coating composition for metal substrates
US3985584A (en) * 1972-10-25 1976-10-12 Oakite Products, Inc. Metal protective coating compositions, their preparation and use
US4341564A (en) * 1980-11-26 1982-07-27 Louis Schiffman Corrosion inhibitive pigment
DE3909694A1 (de) * 1988-03-30 1989-10-12 Nihon Parkerizing Erzeugung schwarzer ueberzuege auf harten oberflaechen
JP3766707B2 (ja) * 1995-10-25 2006-04-19 ディップソール株式会社 亜鉛及び亜鉛合金の撥水処理用水溶性組成物及び撥水処理方法
US20100221574A1 (en) * 2009-02-27 2010-09-02 Rochester Thomas H Zinc alloy mechanically deposited coatings and methods of making the same

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US2902390A (en) * 1955-07-01 1959-09-01 Parker Rust Proof Co Method of coating metal surface with hexavalent chromium compound and polyacrylic acid
US3036934A (en) * 1958-03-17 1962-05-29 Bethlehem Steel Corp Coated article and method of making same
US3063877A (en) * 1960-10-10 1962-11-13 Amchem Prod Method and solutions for treating metal surfaces

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US2291854A (en) * 1940-02-28 1942-08-04 Interchem Corp Lithographic plate and method of producing it
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US2488651A (en) * 1948-04-26 1949-11-22 Bakelite Corp Hydroxylated vinyl resin reacted with ch romium trioxide and phosphoric acid
US2768103A (en) * 1952-03-18 1956-10-23 Heintz Mfg Co Method for coating metals
US2768104A (en) * 1952-03-25 1956-10-23 Heintz Mfg Co Method for coating iron
CA581081A (en) * 1953-07-30 1959-08-11 K. Schuster Ludwig Corrosion resistant coated steel members and method of making
US2777785A (en) * 1953-07-30 1957-01-15 Heintz Mfg Co Composition for and method of treating metals as well as the treated product
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AT205308B (de) * 1957-04-20 1959-09-25 Metallgesellschaft Ag Verfahren zur Nachbehandlung von dünnen Phosphatüberzügen auf Eisen und Stahl, insbesondere Bandstahl
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US3053785A (en) * 1958-02-18 1962-09-11 Rosenbloom Devorah Aqueous alkaline solution comprising vinyl acetate copolymer, a chromate and water-soluble volatile base

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2902390A (en) * 1955-07-01 1959-09-01 Parker Rust Proof Co Method of coating metal surface with hexavalent chromium compound and polyacrylic acid
US3036934A (en) * 1958-03-17 1962-05-29 Bethlehem Steel Corp Coated article and method of making same
US3063877A (en) * 1960-10-10 1962-11-13 Amchem Prod Method and solutions for treating metal surfaces

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3351504A (en) * 1963-10-09 1967-11-07 Internat Protected Metals Inc Method of bonding coatings
US3421949A (en) * 1964-08-12 1969-01-14 Hooker Chemical Corp Composition and process for producing an electrically resistant coating on ferrous surfaces
US3420715A (en) * 1965-06-04 1969-01-07 Cons Foods Corp Additive for phosphate coating solution
US3290235A (en) * 1965-12-02 1966-12-06 Glidden Co Electrodeposition of acidic resin with subsequent anodic electrolysis in dispersioncontaining metal treating oxyanions
US3791431A (en) * 1966-06-01 1974-02-12 Amchem Prod Process for coating metals
US3466207A (en) * 1967-07-19 1969-09-09 Dow Chemical Co Treatment of metals for promoting adhesion of polyolefins
US3709743A (en) * 1969-11-28 1973-01-09 Celanese Coatings Co Acidic deposition process
DE2409897A1 (de) * 1971-03-10 1974-09-26 Amchem Prod Verfahren und massen zum ueberziehen von metallen
US4067837A (en) * 1974-09-12 1978-01-10 J. M. Eltzroth & Associates, Inc. Coating compositions
US4138276A (en) * 1976-03-01 1979-02-06 J. M. Eltzroth & Associates, Inc. Coating compositions
US4183772A (en) * 1978-01-30 1980-01-15 Union Carbide Corporation Composition and method for coating metal surfaces
FR2508476A1 (fr) * 1981-06-24 1982-12-31 Amchem Prod Composition a base de resine acrylique, de chrome et d'agent tensio-actif, son procede de preparation et son application pour former des revetements de surfaces metalliques
US4373968A (en) * 1981-06-24 1983-02-15 Amchem Products, Inc. Coating composition
US4475957A (en) * 1983-10-17 1984-10-09 Amchem Products, Inc. Coating composition
US4559088A (en) * 1984-05-15 1985-12-17 Amchem Products, Inc. Rust preventatives
US5039360A (en) * 1986-10-21 1991-08-13 Procoat S.A. Method for coating hot metal surfaces
US5092924A (en) * 1988-12-07 1992-03-03 Novamax Technologies Corporation Composition and process for coating metallic surfaces
US5378291A (en) * 1990-01-23 1995-01-03 Nihon Parkerizing Co., Ltd. Coating composition for metal
US5321061A (en) * 1992-06-29 1994-06-14 Morton Coatings, Inc. Universally paintable passivated galvanized steel
US5702759A (en) * 1994-12-23 1997-12-30 Henkel Corporation Applicator for flowable materials
US6010263A (en) * 1994-12-23 2000-01-04 Henkel Corporation Applicator for flowable materials
US6048921A (en) * 1994-12-23 2000-04-11 Henkel Corporation Method for applying conversion coating with wick applicator
US5851371A (en) * 1995-02-28 1998-12-22 Henkel Corporation Reducing or avoiding surface irregularities in electrophoretic painting of phosphated metal surfaces

Also Published As

Publication number Publication date
US3189488A (en) 1965-06-15
GB1027548A (en) 1966-04-27
NL298106A (ja) 1900-01-01
DE1219765B (de) 1966-06-23
NL270080A (ja) 1900-01-01
BE637664A (ja) 1900-01-01
US3189489A (en) 1965-06-15
GB936937A (en) 1963-09-18
DE1250233B (de) 1967-09-14

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