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WO1999042639A1 - Matiere de revetement anticorrosif et procede de protection antirouille - Google Patents

Matiere de revetement anticorrosif et procede de protection antirouille Download PDF

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Publication number
WO1999042639A1
WO1999042639A1 PCT/JP1999/000664 JP9900664W WO9942639A1 WO 1999042639 A1 WO1999042639 A1 WO 1999042639A1 JP 9900664 W JP9900664 W JP 9900664W WO 9942639 A1 WO9942639 A1 WO 9942639A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
compound
resin
coating agent
vanadate
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.)
Ceased
Application number
PCT/JP1999/000664
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Kanai
Atsushi Morishita
Yujiro Miyauchi
Toshiaki Shimakura
Motoo Kabeya
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.)
Nippon Paint Co Ltd
Nippon Steel Corp
Original Assignee
Nippon Paint Co Ltd
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Paint Co Ltd, Nippon Steel Corp filed Critical Nippon Paint Co Ltd
Priority to AU25467/99A priority Critical patent/AU2546799A/en
Publication of WO1999042639A1 publication Critical patent/WO1999042639A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
    • 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
    • C23C22/68—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 solutions with pH between 6 and 8

Definitions

  • the present invention relates to a surface treatment composition and a surface treatment method for a metal material, particularly steel coated with a metal (hereinafter referred to as coated steel) or uncoated steel which is not coated or the like.
  • a protective agent that imparts sufficient corrosion resistance to steel.
  • the coated steel In an atmosphere containing salt such as seawater or a high-temperature and high-humidity atmosphere, the coated steel has a surface that causes rust and significantly impairs the appearance, and has a reduced resistance to the steel surface.
  • chromate-based anti-oxidants have been frequently used to prevent the generation of gas.
  • Japanese Patent Application Laid-Open No. 3-131370 describes that “Olefin Ichi,] 3-ethylenically unsaturated
  • a resin-based treating agent comprising a water-dispersible chromium compound and water-dispersible silica in a carboxylic acid copolymer resin dispersion is disclosed.
  • Publication No. 1 discloses a non-chromium antioxidant using sulfide and sulfur.
  • the “reactive emulsion with metal” in JP-A-61-223062 includes a metal obtained by mixing a thiocarbonyl group-containing compound and a water-insoluble or insoluble organic compound in water.
  • a reactive emulsion with is disclosed.
  • the water-soluble anticorrosion paint disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 53-31737 is intended for anticorrosion of mild steel, copper, machinyu, copper wire and the like. Is prepared so as to be more easily adhered to copper or copper. Therefore, it was insufficient as a protective agent for metal surfaces such as aluminum and aluminum.
  • the reactive emulsion disclosed in the above-mentioned Japanese Patent Application Laid-Open No. Sho 61-223203 is also an emulsion which reacts with copper, nickel, tin, cobalt, aluminum and the like and alloys thereof. It was insufficient as a protective agent for metal surfaces such as ships.
  • the present inventors have studied a triazinethiol-containing anti-corrosion coating agent which is also effective in preventing zinc-based steel sheets, and have developed a triazine thiol-containing anti-corrosion coating agent described in Japanese Patent Application No. 9-25557. Disclosed. However, triazine thiol is an expensive compound, and a cheaper antioxidant has been desired.
  • JP-A-54-71734 and JP-A-3-222684 are mentioned.
  • Japanese Unexamined Patent Publication No. Sho 54-7117734 discloses the use of myo-inositol.
  • a zinc or zinc alloy surface treatment method characterized in that zinc or a zinc alloy is surface-treated with an aqueous solution containing 5 to 30 g / l and thiourea or a derivative thereof 1 to 50 g Zl. is there. This technique requires titanium fluoride or zirconium fluoride to form a passivation film as a protective layer on the zinc surface.
  • JP-A 3 - 2 2 6 5 8 4 JP is of N i 2 + and C o 2 + 1 or 2 or 0 0 and on 2 g or more, a compound having an ammonia and primary amine groups.
  • a surface treating agent that is an aqueous solution of pH 5 to 10 having one or two kinds. This requires Ni 2 + and / or Co 2 + to provide paint adhesion and post-paint corrosion resistance by depositing cobalt or nickel.
  • the treating agent containing metal ions has disadvantages such as an increase in the load during wastewater treatment.
  • the present invention has been made in view of the above-mentioned conventional problems, and has as its object to prevent chromium-containing protection.
  • An object of the present invention is to provide an inexpensive and effective anti-corrosion coating agent and anti-corrosion treatment method for non-metallic metal materials having corrosion resistance higher than that of anti-corrosion agents.
  • Another object of the present invention is to provide a metal material which is non-chromium-resistant and has excellent corrosion resistance.
  • a water-proof coating composition according to the present invention comprises a water-based resin and water as main components, a so-called ordinary water-proof coating composition, and more preferably 0.2 to 50 g.
  • the compound containing a thiocarbinole group-containing compound and 0:! To 20 g of a vanadium diacid conjugate.
  • the anti-corrosion coating agent according to the present invention further comprises 0.1 to 5 g of phosphate ions and phosphorus or 50 to 500 g (mainly an aqueous resin and water). (Per composition 11) water-dispersible silica.
  • the method for preventing corrosion according to the present invention is a treatment method for coating any one of the above-described coatings on a metal material.
  • the metal material refers to a plate material such as steel, titanium, aluminum, or copper, or a formed material, and includes a metal material coated by plating, thermal spraying, or the like. Copper includes cold-rolled steel sheets, hot-rolled steel sheets, and stainless steel sheets.
  • coated steel refers to metals such as Zn-based, A1-based, Ni-based, Cr-based, Sn-based, Pb-based, and Fe-based, or one of these metals and other metals. Or steel coated with an alloy with a higher alloy. Other metals include, for example, Co, Ni, Fe, Cr, Al, Mg, Sn, Mn, Zn, Ti, and the like. After these coatings are applied, alloys formed by heat treatment or the like are also included.
  • Coating methods include electroplating, fusion plating, vapor deposition plating, and thermal spraying.
  • the metal material treated for protection according to the present invention is a metal material coated with any one of the above-described coating materials for preventing corrosion.
  • Sulfides like chromic acid, are easily adsorbed on metal surfaces and have excellent oxidizing ability, so they can passivate metal surfaces. Therefore, a thiocarbonyl-containing compound, which is one of the sulfides, has a metal material-preventing effect.
  • the vanadate compound is dissolved in the protective agent as an ion, and depending on the conjugate and the amount added, the dissolution amount as an ion is saturated and dispersed as a solid in the protective agent.
  • ⁇ ⁇ ⁇ May be pigment.
  • the vanadate ion forms a passivation film on the surface of a metal such as zinc or aluminum in the same manner as chromate at the time of application. This is the reason why the vanadate compound exhibits a protective effect.
  • water which is a corrosion factor, penetrates into the anti-corrosion film and a corrosion site is formed on the surface of zinc or aluminum, it is eluted from the vanadate compound by vanadate ions present in the film or permeated water. It is considered that the vanadate ion acts on the corrosion site and suppresses the corrosion reaction.
  • a thiocarbonyl group-containing compound when added together with phosphate ions to a water-resistant coating agent containing an aqueous resin, its protection effect is significantly improved, and is superior to conventional chrome-containing resin-based protection agents.
  • a protective coating agent is obtained. This is presumed to be because the synergistic action of the thiocarbonyl group-containing compound and the ion phosphate exerts a protective effect. That is, it is presumed that (1) the ion of the thiol group in the thiocarbonyl group-containing compound is adsorbed to the site on the surface of the active zinc alloy during the application of the protective coating, and exerts the protective effect.
  • a sulfur atom easily forms a coordination bond with zinc or aluminum, but a thiocarbon group (formula I)
  • nitrogen atoms and oxygen atoms can also form coordinate bonds with metals such as zinc and aluminum, so especially in the case of thiocarbonyl compounds having these atoms simultaneously, a chelate bond is formed on the zinc or aluminum surface. It is easy to form, and the thiocarbon compound can be strongly adsorbed on the surface of a metal such as zinc or aluminum. No thiocarbonyl group-containing compound is adsorbed on sites on metal surfaces such as inactive zinc or aluminum (for example, on the surface of oxides), but phosphate ions act on such inactive surfaces.
  • a phosphate compound such as zinc phosphate or aluminum phosphate is formed to form an active surface. Since the compound containing a thiocarbonyl group is adsorbed on the activated surface in this way, zinc, aluminum, etc. It is presumed that the metal has a protective effect on the entire surface of the metal.
  • the thiocarbonyl group-containing compound and the phosphate ion also act as a crosslinking accelerator for the resin film. It is presumed that the synergistic action of the two reduces the number of micropores in the resin film and efficiently blocks harmful ions such as water and chloride ions.
  • Water-dispersible silica adsorbs protective ions and molecules such as phosphate ion-thiocarbonyl group-containing compounds and vanadate ions onto the surface of the silica particles, and causes a corrosion reaction to occur on a metal-coated surface such as zinc or aluminum. It is thought that the protective action is enhanced by releasing the protective ions and molecules to the site as appropriate.
  • the thiocarbon group-containing compound is a thiocarbonyl group (I)
  • compound means that the compound can release a thiocarbonyl group-containing compound in an aqueous solution or in the presence of an acid or an alkali.
  • a thiocarboxylic acid having a thiocarboxy group or a dithioloxyloxy group represented by OH SH for example, thioacetic acid, thiobenzoic acid, dithioacetic acid, etc .; OH OH SH
  • SH SH thiocarbonates represented by SH; and other compounds having the structure of formula (I), such as thiokumazon, thiomomotiazone, thionin blue J, thiopyrone, thiopyrine, thiobenzophenone, and the like.
  • the thiocarbonyl-containing compound is preferably contained in an amount of 2 g to 50 gZ1 per 11 of a composition containing water-soluble resin and water as a main component, and more preferably 0.5 to 201. If it is less than 0.2 g l is corrosion resistance becomes insufficient, whereas when it exceeds 50 g Bruno 1, the corrosion resistance not only uneconomical saturated, connexion by the aqueous resin to be used, the resin is gelled Coating becomes impossible.
  • the vanadate compound is added in a concentration of 0.1 to 20 g, preferably 0.5 to 10 g, per liter of a composition containing a water-soluble resin and water as a main component. If the concentration of the vanadium acid compound is less than 0.1 g, the protection is reduced, and if it is more than 20 g, the protection is saturated and uneconomical.
  • the vanadate compound is vanadate, typically metavanadate, orthovanadate, for example, vanadate such as ammonium vanadate, sodium vanadate, potassium vanadate, strontium vanadate, sodium hydrogen vanadate, and the like. Further, it can be supplied in the form of a phosphovanadate such as phosphovanadate or ammonium phosphovanadate.
  • Phosphate ions form a phosphate layer on the surface of the metal substrate, passivate it, promote the crosslinking reaction of the resin film derived from the aqueous resin, and form a dense water-proof film. Strength is further improved.
  • the content of phosphate ions is 0.1 lg to 5 g, more preferably 0.5 g to 3 g, and preferably less than 0.1 g / 1, per composition containing water-soluble resin and water as main components. In the case of, the protection effect is not fully exhibited, On the other hand, if the content exceeds 5 g Zl, the 1 "life of the protection is reduced, and the resin is gelled, so that the storage stability of the protection coating as a product is deteriorated.
  • the water-proof coating agent according to the present invention further comprises 50 to 500 g, more preferably 100 to 400 g of water dispersed in 1 liter of the total composition containing an aqueous resin and water as main components. Corrosion resistance is further improved by adding the functional silica. Moreover, in addition to the corrosion resistance, the drying property, the scratch resistance, and the coating property can be improved.
  • the water-dispersible silica is a generic name for a silica force having characteristics such that, when dispersed in water, it has a fine particle size, can maintain a stable water-dispersed state, and does not semi-permanently settle. That's what they say.
  • the water-dispersible silica is not particularly limited as long as it has a small amount of impurities such as sodium and is weakly alkaline.
  • silica gels such as "Snowtex N” (manufactured by Nissan Chemical Industries, Ltd.) and “Adelite AT-20N” (manufactured by Asahi Denka Kogyo Co., Ltd.), or commercially available aerosil powder silica particles are used. be able to.
  • the content of the water-dispersible silica is preferably 50 to 500 g per liter of the above-mentioned water-proof coating agent. If the content is less than 50 g, the effect of improving the corrosion resistance is not sufficient. On the other hand, if it exceeds 500 g, the corrosion resistance is saturated and uneconomical.
  • the water-resistant resin is contained in the anti-corrosion coating agent of the present invention.
  • the term “aqueous resin” includes not only a water-soluble resin but also a water-insoluble resin, such as an emulsion or a suspension, in which the insoluble resin is finely dispersed in water.
  • the resin that can be used as such an aqueous resin include polyolefin resin, polyurethane resin, acrylic resin, polycarbonate resin, epoxy resin, polyester resin, alkyd resin, phenol resin, and others. Heat-curable resin and the like can be exemplified, and a crosslinkable resin is more preferable.
  • Particularly preferred resins are polyolefin-based resins, polyurethane-based resins, and mixed resin-based resins of both.
  • the aqueous resin may be used as a mixture of two or more kinds.
  • the water-proof coating agent according to the present invention is preferably composed of an aqueous resin (including a water-soluble resin and a water-dispersible resin) in a solid content of 1 to 80 parts by weight and water of 99 to 20 parts by weight, more preferably 5 to 90 parts by weight, respectively. 50 parts by weight and 95 to 50 parts by weight as a main component. You.
  • the composition may further include a viscosity modifier, a pigment, a dye, a surfactant, an organic solvent, and the like.
  • the heat-resistant coating agent according to the present invention may further contain other components.
  • pigments, surfactants and the like can be mentioned.
  • a silane coupling agent may be added to improve the affinity between the aqueous resin and the silica particles and the pigment, and further improve the adhesion between the aqueous resin and the surface of zinc, aluminum or iron. ,.
  • pigment such as titanium oxide (T i 0 2), zinc oxide (Z nO), oxide Jill Koniumu (Z and rO), calcium carbonate (CaC 0 3), barium sulfate (B a SO 4), alumina ( A1 2 0 3), kaolin clay, carbon black, iron oxide (F e 2 0 3, F e 3 0
  • Inorganic pigments such as J and various coloring pigments such as organic pigments can be used.
  • silane coupling agent examples include —aminopropyl trimethoxysilane, ⁇ -aminopropyltriethoxysilane, glycidoxypropyltrimethoxysilane, ⁇ -methacryloxypropyltriethoxysilane, ⁇ - [2- (vinyl Benzylamino) ethyl] -3-aminopropyl trimethoxysilane.
  • a solvent may be used in the water-proof coating agent according to the present invention in order to improve the film forming property of the aqueous resin and form a more uniform and smooth coating film.
  • the solvent is not particularly limited as long as it is generally used for coatings, and examples thereof include alcohol-based, ketone-based, ester-based, and ether-based solvents.
  • a metal material can be subjected to a heat-proof treatment by using the above-mentioned heat-proof coating agent as a metal material-proof coating agent.
  • the above-mentioned mackerel-barrier coating agent of the present invention is applied to an object to be coated, and after the application, the object to be coated is dried and hardened.
  • Methods of drying and curing include hot air heating, induction heating, electric heating, near-infrared heating, far-infrared heating, etc., or a combination of these methods to heat and dry the object to be coated.
  • the method can be selected according to the type of aqueous resin to be used, such as a method of irradiating and curing a coating film, or a method of combining a method of heating and a method of applying energy rays.
  • a method may be used in which the heat-resistant coating agent of the present invention is hot-applied, and the remaining heat is used, or a necessary hot energy is further added and dried.
  • the heating temperature is not particularly limited, but the ultimate plate temperature is desirably 40 to 250 ° C. If the temperature is lower than 40 ° C., the evaporation rate of water is slow, and sufficient film-forming properties may not be obtained, resulting in insufficient protection. On the other hand, when the temperature exceeds 250 ° C., thermal decomposition of the aqueous resin occurs, so that the corrosion resistance is reduced and the appearance may be changed. More preferably, it is 60 to 200 ° C.
  • the drying time when the object is heated and dried after application is not particularly limited, but is about 1 second to 5 minutes.
  • the dry film thickness of the above-mentioned heat-proof coating agent of the present invention is 0.1 // m or more. If it is less than 0.1 // m, the protection is insufficient. On the other hand, if the dry film thickness is too thick, it is uneconomical as a coating base treatment and inconvenient for coating, so that the thickness is more preferably 0.1 to 2 ° ⁇ . More preferably, it is 0.1 to 10 / m.
  • the film thickness when used as a water-based waterproof coating, may be 0.1 / m or more.
  • the method of applying the above-mentioned fire-proofing coating agent of the present invention is not particularly limited, and it can be applied by generally used roll coating, air spray, airless spray, immersion or the like.
  • the material coated with the anti-corrosion coating agent of the present invention is a metal material as described above.
  • the anti-corrosion coating agent of the present invention can be used as a coating base treatment agent and a water-based anti-corrosion paint as described above, and can also be applied as a so-called primary anti-corrosion agent. Furthermore, it can be used not only for the undercoat treatment of a lubricating film on a metal plate and the undercoat treatment in the field of coil coating, but also as a lubricating inhibitor for lubricated steel sheets by adding a wax to the present agent.
  • the concentration expression (gZl) refers to an anti-adhesion coating mainly composed of an aqueous resin and water. Means the weight (g) of each component contained in 1 liter of the agent composition.
  • the anti-corrosion coating agent of the present invention (solid content: 20 wt./.) was applied to a commercially available galvanized zinc-coated steel sheet EG—MO material and a molten A 1-10% Si plated steel sheet (plated adhesion amount 30 g / m 2 ). After coating with a bar coat # 3 so as to have a dry film thickness of 1 / zm, it was dried to a PMT of 150 ° C.
  • a 5% saline solution was sprayed on the coated surface of the object to be coated at 35 ° C., and the degree of whitening after 240 hours was evaluated on a scale of 10 out of 10. The evaluation was performed for both the flat part and the Erichsen 7 mm extruded part.
  • the evaluation criteria were as follows.
  • the anti-corrosion coating agent of the present invention (solid content: 20% by weight) is bar-coated on a commercially available electroplated zinc-coated steel sheet EG—MO material and molten A 1-10% Si plated steel sheet (plated adhesion amount 30 g / m 2 ). After coating in # 3 so that the dry film thickness was 1 ⁇ , it was dried to PMT 150 ° C. After drying, Super Lac 100 (manufactured by Paint Co., Ltd .; acrylic melamine paint) was applied in a dry coat to a dry film thickness of 20 / m. After drying at 150 ° C for 20 minutes, the top coat adhesion test plate Make Was.
  • Crosscut The tape-peeling property of the portion where a 1-mm cut was cut was evaluated, and it was evaluated on a scale of 10 out of the following criteria.
  • Erichsen (Er) 7 mm Tape was applied to the part extruded with Erichsen to 7 mm, and the tape peelability was similarly evaluated.
  • the evaluation criteria were as follows.
  • polyolefin resin “Hitech S_7042” (trade name; manufactured by Toho Chemical Co., Ltd.) and polyurethane resin “BonTiter HU X-320” (trade name; manufactured by Asahi Denka Co., Ltd.) Is added at a ratio of 1: 1 (weight ratio) in terms of solids so that the total concentration of the resin solids is 20% by weight, and ammonium vanadate is further added.
  • 3 g / l, thiourea at 5.0 g / l, and ammonium phosphate dissolved at a phosphate ion concentration of 2.5 g / 1, and finally water-dispersible silica "Snowtex N"
  • EP-MO (Nippon Test Panel Co., Ltd., 70 x 150 x 0.8) was applied and dried. Electric zinc plating steel plate was degreased with an alkaline degreasing agent "Surf Cleaner 53", manufactured by Nippon Paint Co., Ltd. After water washing and drying, the above evaluation was performed.
  • Table 1 shows the evaluation results.
  • Example 1 In the same manner as in Example 1, except that the mixing ratio of the polyolefin resin and the polyurethane resin, the type of the compound containing a thiopropyl group and the type and the amount of the vanadic acid compound were changed as described in Table 1, respectively. Thus, a galvanized steel sheet having been subjected to a water-proof treatment was obtained. Table 1 shows the evaluation results.
  • Example 1 A commercially available electroplated zinc-plated steel sheet was treated in the same manner as in Example 1 except that the amount of phosphate ions and “Snowtex N” were changed as shown in Table 1 and the amount was set to 05 gZ 1. This was polished, degreased, washed with water, dried and evaluated in the same manner as in Example 1. Table 1 shows the results.
  • Example 1 the prevention treatment was carried out in the same manner as in Example 1 except that the added amount of ammonium vanadate and the added amounts of phosphate ions and “Snowtex N” were changed as shown in Table 2.
  • An electro-zinc plated steel sheet was obtained, and evaluation of the anti-corrosion property and the adhesion of the top coat was performed in the same manner. Table 2 shows the evaluation results.
  • the polyolefin resin “HI-TECH S-7024” (trade name; manufactured by Toho Chemical Co., Ltd.) and the polyurethane resin “Bon Titer HUX-320” (trade name; manufactured by Asahi Denka Co., Ltd.) Mix and add 1: 1 (weight ratio) solids so that the concentration is 20% by weight.
  • Table 3 shows the evaluation results.
  • Example 10 The same as Example 10 except that the mixing ratio of the polyolefin resin and the polyurethane resin, the type of the thiocarbonyl group-containing compound, and the type and the amount of the vanadic acid compound were changed as shown in Table 3 in Example 10.
  • Potassium vanadate is added as a vanadate compound with 0.1 g / 1 Melting A 1-10% Si plated steel sheet (plated adhesion amount 30 g / m 2) in the same manner as in Comparative Example 3 except that the amounts of acid ions and “Snowtex N” were changed as described in Table 1. ) was processed. This was polished, degreased, washed with water, dried and evaluated in the same manner as in Example 10. Table 3 shows the results.
  • Example 10 protection was performed in the same manner as in Example 10 except that the addition amount of ammonium vanadate and the addition amounts of ion phosphate and “Snowtex N” were changed as shown in Table 4. A treated electric zinc plated steel sheet was obtained, and similarly, the heat resistance and the topcoat adhesion were evaluated. Table 4 shows the evaluation results.
  • the water-proofing agent which concerns on this invention, and the water-proofing processing method using this water-proof coating agent, the water-proofing agent superior to the conventional chromate-containing aqueous resin-based protective agent is exhibited, In addition, all of the components used have low toxicity, and thus can provide a non-chromium protective coating agent having low pollution and excellent protective properties.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Paints Or Removers (AREA)

Abstract

L'invention concerne une matière peu coûteuse de revêtement anticorrosif sans chrome, donnant une meilleure résistance à la corrosion à des matières métalliques que les matières antirouilles contenant du chrome. La matière de revêtement comprend une composition formée principalement d'une résine compatible avec l'eau et d'eau ainsi que, par litre de la composition, 0,2 à 50 g d'un composé comprenant un groupe thiocarbonyle, 0,1 à 20 g d'un composé d'acide de vanadium et éventuellement 0,1 à 5 g d'ions phosphate et/ou 50 à 500 g de silice pouvant être dispersée dans l'eau.
PCT/JP1999/000664 1998-02-18 1999-02-16 Matiere de revetement anticorrosif et procede de protection antirouille Ceased WO1999042639A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25467/99A AU2546799A (en) 1998-02-18 1999-02-16 Anticorrosive coating material and method of rust prevention

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3626798 1998-02-18
JP10/36267 1998-02-18

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WO1999042639A1 true WO1999042639A1 (fr) 1999-08-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001152087A (ja) * 1999-11-22 2001-06-05 Kawasaki Steel Corp 加工性および耐候性に優れる表面処理鋼板
JP2007253219A (ja) * 2006-03-24 2007-10-04 Jatco Ltd プレス加工方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61223062A (ja) * 1985-03-29 1986-10-03 Toa Denka:Kk 金属との反応性エマルジヨン
JPH09268264A (ja) * 1996-03-29 1997-10-14 Nippon Light Metal Co Ltd ノンクロム型金属防食用被覆組成物
JPH1129724A (ja) * 1997-05-14 1999-02-02 Nippon Paint Co Ltd 防錆コーティング剤および防錆処理方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61223062A (ja) * 1985-03-29 1986-10-03 Toa Denka:Kk 金属との反応性エマルジヨン
JPH09268264A (ja) * 1996-03-29 1997-10-14 Nippon Light Metal Co Ltd ノンクロム型金属防食用被覆組成物
JPH1129724A (ja) * 1997-05-14 1999-02-02 Nippon Paint Co Ltd 防錆コーティング剤および防錆処理方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001152087A (ja) * 1999-11-22 2001-06-05 Kawasaki Steel Corp 加工性および耐候性に優れる表面処理鋼板
JP2007253219A (ja) * 2006-03-24 2007-10-04 Jatco Ltd プレス加工方法

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