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EP1268193A4 - Agent de traitement de surface metallique - Google Patents

Agent de traitement de surface metallique

Info

Publication number
EP1268193A4
EP1268193A4 EP01916127A EP01916127A EP1268193A4 EP 1268193 A4 EP1268193 A4 EP 1268193A4 EP 01916127 A EP01916127 A EP 01916127A EP 01916127 A EP01916127 A EP 01916127A EP 1268193 A4 EP1268193 A4 EP 1268193A4
Authority
EP
European Patent Office
Prior art keywords
surface treatment
coating film
treatment agent
metal
metal surface
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Withdrawn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
EP01916127A
Other languages
German (de)
English (en)
Other versions
EP1268193A1 (fr
Inventor
Yasuhiro Kinoshita
Kazunari Hamamura
Ryousuke Sako
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 EP1268193A1 publication Critical patent/EP1268193A1/fr
Publication of EP1268193A4 publication Critical patent/EP1268193A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

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    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00Lubricating compositions containing more than 10% water
    • C10M173/02Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • 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
    • C09D125/00Coating 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 an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
    • C09D125/02Homopolymers or copolymers of hydrocarbons
    • C09D125/04Homopolymers or copolymers of styrene
    • C09D125/06Polystyrene
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    • 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
    • C09D133/00Coating 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/02Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • 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
    • C09D135/00Coating 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 carboxyl radical, and containing at least another carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D135/06Copolymers with vinyl aromatic monomers
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    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M157/00Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • C08L91/06Waxes
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    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02Water
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    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/04Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
    • C10M2205/043Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene used as base material
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    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/14Synthetic waxes, e.g. polythene waxes
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    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/14Synthetic waxes, e.g. polythene waxes
    • C10M2205/143Synthetic waxes, e.g. polythene waxes used as base material
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    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/16Paraffin waxes; Petrolatum, e.g. slack wax
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    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/16Paraffin waxes; Petrolatum, e.g. slack wax
    • C10M2205/163Paraffin waxes; Petrolatum, e.g. slack wax used as base material
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    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/17Fisher Tropsch reaction products
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    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084Acrylate; Methacrylate
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    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084Acrylate; Methacrylate
    • C10M2209/0845Acrylate; Methacrylate used as base material
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/086Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type polycarboxylic, e.g. maleic acid
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    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
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    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/24Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/241Manufacturing joint-less pipes
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    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/242Hot working
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    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/243Cold working
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    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/244Metal working of specific metals
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    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/244Metal working of specific metals
    • C10N2040/245Soft metals, e.g. aluminum
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    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/244Metal working of specific metals
    • C10N2040/246Iron or steel
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    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/20Metal working
    • C10N2040/244Metal working of specific metals
    • C10N2040/247Stainless steel
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    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/36Release agents or mold release agents
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    • C10N2050/00Form in which the lubricant is applied to the material being lubricated
    • C10N2050/01Emulsions, colloids, or micelles
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    • C10N2050/00Form in which the lubricant is applied to the material being lubricated
    • C10N2050/015Dispersions of solid lubricants
    • C10N2050/02Dispersions of solid lubricants dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating

Definitions

  • the present invention relates to a metal surface treatment agent which improves the press molding workability of metal materials and can form a coating film that is superior in terms of at least one of moisture resistance and coating film stripping characteristics, a surface-treated metal material, and a method of surface treating metal materials.
  • metal plates used in household electrical appliances, construction materials and other parts are manufactured by molding such as press molding, etc.
  • press molding a method in which the metal plates are coated with a press-molding lubricating oil (press oil) and then molded, after which the press oil is removed by a degreasing and cleaning process using a solvent such as a chlorine type solvent, etc., has been widely used.
  • press oil press-molding lubricating oil
  • a metal surface treatment agent in which a base resin containing a water-soluble resin with a glass transition temperature of 15 to 35 °C and a water-soluble resin with a glass transition temperature of 60 to 90 °C at a ratio of 4 : 6 ⁇ 6 : 4 is mixed with a lubricating agent that has a melting point of 100 °C or greater at the rate of 2 to 10 parts by weight of the lubricating agent to 90 to 98 parts by weight of the base resin (Japanese Patent Application Kokai No.
  • metal surface treatment agents consisting of a flexible and alkali-aqueous- solution-soluble water-soluble or water-dispersible resin, a solid lubricating agent and a body pigment or fluororesin powder
  • a surface treatment agent consisting of 20 to 50 % alkali-soluble acrylic resin, 20 to 50% wax emulsion with a melting point of 50 to 130 °C, and 10 to 40% alkali -soluble colloidal silica
  • the object of the present invention is to solve the abovementioned problems encountered in the prior art, and to provide a metal surface treatment agent which improves the press molding workability of metal materials, and which can form a coating film that is superior in terms of at least one of moisture resistance and coating film stripping characteristics, and a surface-treated metal material which is surface-treated with this metal surface treatment agent, and a method of surface treating metal materials.
  • the inventors of the present invention have discovered that the aforementioned problems can be solved by using a metal surface treatment agent that contains a lubricating agent and a copolymer that has a specified chemical structure.
  • the present invention provides a metal surface treatment agent which comprises (A) a copolymer which comprises (a) styrene and (b) a vinyl compound with carboxyl groups that is copolymerizable with styrene, and (B) a lubricating agent.
  • the (A) copolymer has a weight ratio of component (a) to component (b) i.e., (a)/(b) (weight ratio), is in the range of 1/9 to 9/1, a proportion of (a) + (b) in the polymer (A) of 30 to 100 weight %, and a ratio of (B) to (A) +
  • the abovementioned lubricating agent (B) comprises at least one substance selected from the group consisting of paraffin wax, microcrystalline wax, polyethylene wax and polypropylene wax.
  • the abovementioned polymer (A) be a polymer with a glass transition temperature of 75 °C or greater.
  • the present invention also provides a surface-treated metal material with superior press molding workability and/or coating film stripping characteristics and a method of making the same by coating the surface of a metal material with the aforementioned metal surface treatment agent so that the amount of adhering coating film following drying is 0.1 to 5 g/m 2 , and then drying the aforementioned metal surface treatment agent.
  • the polymer (A) used in the present invention is a copolymer which contains (a) styrene, and (b) a vinyl compound with carboxyl groups that is copolymerizable with styrene, as essential monomers.
  • the abovementioned component (b) is a vinyl compound with carboxyl groups that is copolymerizable with styrene; suitable examples of such compounds include, but are not necessarily limited to, acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, crotonic acid, itaconic acid, citraconic acid and cinnamic acid, and the like.
  • the weight ratio of the abovementioned styrene (a) to the vinyl compound (b) containing carboxyl groups that is copolymerizable with styrene i. e., (a)/(b) (weight ratio)
  • (a)/(b) (weight ratio) is in the range of 1/9 to 9/1, preferably in the range of 2/8 to 8/2, and even more preferably in the range of 5/5 to 8/2.
  • the workability of the coating film deteriorates; specifically, the hardness of the coating film is insufficient so that the coating film is susceptible to damage during press molding.
  • the proportion of (a) + (b) in the polymer (A), i. e., the proportion of the total amount of component (a) plus component (b) in the polymer (A), is 30 to 100 weight %, preferably 40 to 100 weight %, and even more preferably 50 to 100 weight %.
  • copolymerizable compounds other than components (a) and (b) contained in the polymer (A) used in the present invention; examples of desirable compounds include, but are not necessarily limited to, aliphatic alcohol esters of acrylic acid, methacrylic acid, maleic acid, fumaric acid, crotonic acid and itaconic acid, etc., e.
  • acrylonitrile, methacrylonitrile, vinyl acetate, acrylamide and diacetoneacrylamide, etc. may also be used.
  • ordinary methods used to polymerize vinyl compounds e. g., emulsion polymerization, suspension polymerization or solution polymerization methods, are desirable.
  • a polymer with a glass transition temperature of 75 °C or greater, preferably 80°C or greater is suitable for use.
  • the temperature of the surface of the material during press molding is ordinarily around 80 °C. Consequently, if the glass transition temperature of the resin in the coating film is too low, the coating film may be damaged during press molding. Accordingly, it is desirable that the glass transition temperature of the resin in the coating film be 75 °C or greater.
  • substances which can be used as the lubricating agent (B) used in the present invention include, but are not necessarily limited to, paraffin wax, paraffin wax derivatives, microcrystalline wax, microcrystalline wax derivatives, polyethylene wax, polypropylene wax, candelilla wax, carnauba wax, rice wax, Japan wax, hohoba wax, beeswax, lanolin, spermaceti, montan wax, montan wax derivatives, ozocerite, ceresin, petrolatum, hardened castor oil, hardened castor oil derivatives, stearic acid amide and anhydrous phthalic acid amide, etc.
  • paraffin wax, microcrystalline wax, polyethylene wax and polypropylene wax are especially preferred.
  • the metal surface treatment agent of the present invention is manufactured by adding the abovementioned polymer (A) and lubricating agent
  • the ratio of (B) to (A) + (B) is 2 to 30 weight %, preferably 3 to 25 weight %, and even more preferably 5 to 20 weight %.
  • the ratio of the solid content of (B) to the total solid content of (A) + (B) is less than 2 weight %, the effect of the lubricating agent during press molding is insufficient.
  • this ratio exceeds 30 weight %, the coating film stripping characteristics deteriorate since the lubricating agent is insoluble in water. Accordingly, such a high ratio is undesirable.
  • the concentration of the solid content be in the range of 5 to 50 weight %, and a concentration in the range of 5 to 40 weight % is even more desirable.
  • the concentration of the solid content is less than 5 weight %, the drying time is prolonged when a coating film is formed by applying the agent to the surface of the metal material. Accordingly, such a small concentration is undesirable.
  • the concentration of the solid content exceeds 50 weight %, the viscosity of the metal surface treatment agent itself is increased, so that there is a danger that handling of the agent will be adversely affected.
  • Surfactants known as wettability-improving agents, which are used to form a uniform coating film on the coated surface, conductive substances that are used to improve weldability, and coloring pigments used to improve design properties, etc., may also be contained in the metal surface treatment agent of the present invention as optional components.
  • coating film stripping characteristics are a performance value that is necessary in cases where the metal material is used in applications requiring special features of the material (e. g., external appearance, vividness) or treatability in after-processes (e. g., phosphate formation treatments, alumite treatments), etc. In such cases, it is necessary that it be possible to strip the coating film by means of a treatment such as alkali degreasing, etc.
  • the coating film can be stripped by means of alkali degreasing, and the like; however, the moisture resistance is insufficient, and the coating film becomes tacky as a result of being exposed to moisture in the air during the period between the application of the coating to the metal material and the molding process, so that there is a danger of blocking of the metal plates. As result, the metal plates must be stored under strict moisture control.
  • stripping of the coating film can be accomplished by alkali degreasing, and the moisture resistance is improved. Consequently, there is no need for strict moisture control during the storage period between application of the coating to the metal material and the molding process.
  • metal materials on which a coating film is formed using the surface treatment agent of the present invention are superior in terms of workability to metal materials on which a coating film is formed using a conventional surface treatment agent.
  • metal materials treated with the metal surface treatment agent of the present invention include, but are not necessarily limited to, galvanized steel plates (electro-galvanized steel plates, melt-galvanized steel plates, alloyed melt- galvanized steel plates, galvanized steel plates containing 5% aluminum, galvanized steel plates containing 55% aluminum, vacuum deposition type
  • the surface treatment agent of the present invention is applied the above mentioned metal material at a temperature of 10 to 40°C.
  • the coating to method used may be a roll coater method, dipping method or electrostatic coating method, and the like.
  • drying is performed with the temperature reached by the plates set at 50 to 180°C, preferably 60 to 160°C, and even more preferably 60 to 140°C.
  • a coating film with superior coating film stripping characteristics can be formed on the surfaces of metal materials, and metal materials on which such a coating film is formed are superior in terms of press molding characteristics.
  • the above mentioned temperature reached by the plates during drying is less than 50 °C, the coating film is sticky; accordingly, such a low temperature is undesirable.
  • the temperature reached by the plates exceeds 180 °C, the cost involved in drying is increased so that such a process is uneconomical.
  • the aforementioned surface treatment agent is applied and dried so that the amount of adhering coating film following drying is 0.1 to 5 g/m 2 .
  • This amount of adhering coating film is preferably 0.2 to 4 g/m 2 , and is even more preferably 0.3 to 3 g/m 2 .
  • this amount exceeds 5 g/m 2 , the effect on the press molding characteristics becomes saturated; accordingly, such a large amount is uneconomical.
  • test materials The commercially marketed metal materials shown below were used as test materials. Furthermore, the size of the test materials was 200 mm x 300 mm.
  • test materials were subjected to a degreasing treatment with Fine Cleaner 4336 (registered trademark, manufactured by Nihon Parkerizing Co Ltd.), a silicate type alkali degreasing agent. Specifically, the test materials were subjected to a spray treatment for 2 minutes at a degreasing agent concentration of 20 g/L and a temperature of 60 °C, and were then washed with tap water for 30 seconds.
  • Fine Cleaner 4336 registered trademark, manufactured by Nihon Parkerizing Co Ltd.
  • Copolymers Al through A8 were prepared by copolymerizing the monomers shown in Table 1 in the proportions shown in Table 1 (the numerals in parentheses shown for the monomers in Table 1 indicate weight ratios).
  • Copolymerization was accomplished by emulsion polymerization using an ordinary method at room temperature.
  • the copolymers were used as aqueous dispersions with a solid content concentration of 20-weight %.
  • Copolymers Al through A8 shown in Table 1 and lubricating agents Bl through B3 shown in Table 2 were mixed in the compositions and amounts shown in Table 3 while being agitated by means of a propeller agitator in the order shown, and the concentration of the solid content was adjusted by adding distilled water.
  • the metal surface treatment agents of Working Examples a through j and the metal surface treatment agents of Comparative Examples k through n were prepared.
  • the respective surface treatment agents prepared as described above were applied to the abovementioned test plates by means of a bar coater, and were dried for 10 seconds at an atmosphere temperature of 240 °C.
  • the temperature reached by the plates in this case was 100°C.
  • the amount of adhering surface treatment agent was adjusted by appropriately varying the concentration of the solid content of the surface treatment agent and the type of bar coater used.
  • test samples were cut to a size of 30 mm x 300 mm, and a draw-bead test (bead tip end 1 mm R, bead height 4 mm, die shoulder 1 mm R, pressure bonding load 500 kg, temperature 30 °C) was performed.
  • the rubbed surface was stripped with cellophane tape, and an evaluation was performed using the criteria shown below.
  • test samples were cut to a size of 70 mm x 150 mm, and were allowed to stand for 5 hours in an atmosphere at a temperature of 50 °C and a humidity of 95%.
  • the external appearance before and after testing was evaluated using the criteria shown below.
  • test samples were cut to a size of 70 mm x 150 mm, and were subjected to a degreasing treatment using Fine Cleaner 4336 (registered trademark, manufactured by Nihon Parkerizing Co., Ltd.), a silicate type alkali degreasing agent.
  • Fine Cleaner 4336 registered trademark, manufactured by Nihon Parkerizing Co., Ltd.
  • silicate type alkali degreasing agent a silicate type alkali degreasing agent.
  • the test samples were subjected to a spray treatment for 2 minutes at a degreasing agent concentration of 20 g/L and a temperature of 60 °C, and were then washed with tap water. Following washing, the amount of surface carbon on the test samples was measured using a LECO (surface carbon analyzer), and the degree of coating film stripping was calculated using the formula shown below. An evaluation was then performed using the criteria shown below. Furthermore, "before degreasing", "after degreasing” and “untreated plates” in the
  • degree of coating film stripping is 80% or greater, but less than 95% x: degree of coating film stripping is less than 80%
  • a coating film which is superior in terms of at least one of moisture resistance and coating film stripping characteristics can be formed on the surfaces of metal materials by applying the metal surface treatment agent of the present invention to the surfaces of such metal materials and drying the applied agent.
  • the metal materials on which such coating films are formed are superior in terms of press molding characteristics. Furthermore, since the coating films formed on the surfaces of the metal materials are superior in terms of moisture resistance, no blocking occurs during the storage of the metal materials up to the time of press molding, even if the humidity is not strictly controlled.
  • the metal surface treatment agent of the present invention brings out the special features of materials such as external appearance and vivid color, etc., and can be suitably utilized in the treatment of metal materials that require after-process treatments such as phosphate formation treatments or alumite treatments, etc.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)
  • Lubricants (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un agent de traitement de surface métallique permettant d'améliorer l'usinabilité d'une matrice de compression de matériaux métalliques et de former un film de qualité supérieure en matière d'au moins l'une des caractéristiques de résistance à l'humidité et de pelage du film de revêtement. L'agent de traitement de surface métallique selon l'invention comprend (A) un copolymère renfermant (a) du styrène et (b) un composé vinylique doté de groupes carboxyle et qui est copolymérisable avec le styrène et, (B) un agent lubrifiant, et est caractérisé par le fait que le rapport pondéral du composant (a) au composant (b) dans le polymère (A) précité, à savoir (a)/(b) (rapport pondéral) se situe entre 1/9 à 9/1, et en ce que la proportion de (a) + (b) dans le polymère (A) précité est de 30 à 100 % en poids, et le rapport pondéral de (B) à (A) + (B) est de 2 à 30 % en poids.
EP01916127A 2000-02-18 2001-02-20 Agent de traitement de surface metallique Withdrawn EP1268193A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000041339 2000-02-18
JP2000041339A JP3803819B2 (ja) 2000-02-18 2000-02-18 金属表面処理剤並びにこれで処理した表面処理金属材料
PCT/US2001/005257 WO2001060603A1 (fr) 2000-02-18 2001-02-20 Agent de traitement de surface metallique

Publications (2)

Publication Number Publication Date
EP1268193A1 EP1268193A1 (fr) 2003-01-02
EP1268193A4 true EP1268193A4 (fr) 2005-04-06

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EP01916127A Withdrawn EP1268193A4 (fr) 2000-02-18 2001-02-20 Agent de traitement de surface metallique

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EP (1) EP1268193A4 (fr)
JP (1) JP3803819B2 (fr)
CA (1) CA2400364A1 (fr)
MX (1) MXPA02007395A (fr)
WO (1) WO2001060603A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN102443325B (zh) * 2010-10-10 2014-09-10 山东鲁蒙防水防腐材料股份有限公司 一种水性的防“涂鸦”耐污涂料及其制备方法
JP7056683B2 (ja) 2020-03-18 2022-04-19 Jfeスチール株式会社 冷間圧延鋼板

Citations (6)

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Publication number Priority date Publication date Assignee Title
GB1125451A (en) * 1965-08-13 1968-08-28 Johnson & Son Inc S C Coating composition
US4013607A (en) * 1974-06-19 1977-03-22 S. C. Johnson & Son, Inc. Self-stripping coating composition
US4661170A (en) * 1984-09-21 1987-04-28 Henkel Kommanditgesellschaft Auf Aktien Method and composition for preserving aluminum surfaces
US5442005A (en) * 1987-11-26 1995-08-15 Procoat S.A. Multi-function protective coating for zinc coated steel surfaces and its alloys
WO1998010025A1 (fr) * 1996-09-06 1998-03-12 Videojet Systems International, Inc. Compositions aqueuses d'encre par jet
EP1038933A1 (fr) * 1998-10-14 2000-09-27 Kawasaki Steel Corporation Composition de revetement et feuilles metalliques lubrifiees

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Publication number Priority date Publication date Assignee Title
US4289671A (en) * 1980-06-03 1981-09-15 S. C. Johnson & Son, Inc. Coating composition for drawing and ironing steel containers
US4942193A (en) * 1988-10-11 1990-07-17 Ppg Industries, Inc. Temporary protective coating compositions
US5387473A (en) * 1992-03-31 1995-02-07 Nkk Corporation Weldable black steel sheet with low-gloss appearance
US5837658A (en) * 1997-03-26 1998-11-17 Stork; David J. Metal forming lubricant with differential solid lubricants

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1125451A (en) * 1965-08-13 1968-08-28 Johnson & Son Inc S C Coating composition
US4013607A (en) * 1974-06-19 1977-03-22 S. C. Johnson & Son, Inc. Self-stripping coating composition
US4661170A (en) * 1984-09-21 1987-04-28 Henkel Kommanditgesellschaft Auf Aktien Method and composition for preserving aluminum surfaces
US5442005A (en) * 1987-11-26 1995-08-15 Procoat S.A. Multi-function protective coating for zinc coated steel surfaces and its alloys
WO1998010025A1 (fr) * 1996-09-06 1998-03-12 Videojet Systems International, Inc. Compositions aqueuses d'encre par jet
EP1038933A1 (fr) * 1998-10-14 2000-09-27 Kawasaki Steel Corporation Composition de revetement et feuilles metalliques lubrifiees

Non-Patent Citations (1)

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Title
See also references of WO0160603A1 *

Also Published As

Publication number Publication date
MXPA02007395A (es) 2002-12-09
JP2001234349A (ja) 2001-08-31
EP1268193A1 (fr) 2003-01-02
CA2400364A1 (fr) 2001-08-23
WO2001060603A1 (fr) 2001-08-23
JP3803819B2 (ja) 2006-08-02

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