WO2020080227A1 - Composition de matériau de revêtement, film de revêtement et film de revêtement multicouche - Google Patents

Composition de matériau de revêtement, film de revêtement et film de revêtement multicouche Download PDF

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Publication number
WO2020080227A1
WO2020080227A1 PCT/JP2019/039862 JP2019039862W WO2020080227A1 WO 2020080227 A1 WO2020080227 A1 WO 2020080227A1 JP 2019039862 W JP2019039862 W JP 2019039862W WO 2020080227 A1 WO2020080227 A1 WO 2020080227A1
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WO
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Prior art keywords
coating composition
alkyd resin
coating film
coating
urethane
Prior art date
Application number
PCT/JP2019/039862
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English (en)
Japanese (ja)
Inventor
麻美子 大浦
小泉　徹
宗夫 今村
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日本ペイント株式会社
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Application filed by 日本ペイント株式会社 filed Critical 日本ペイント株式会社
Priority to SG11202103675VA priority Critical patent/SG11202103675VA/en
Priority to CN201980067233.4A priority patent/CN112867771B/zh
Publication of WO2020080227A1 publication Critical patent/WO2020080227A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/06—Polyurethanes from polyesters
    • 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
    • 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
    • C09D5/10—Anti-corrosive paints containing metal dust
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic

Definitions

  • the present invention relates to a coating composition, a coating film and a multilayer coating film. More specifically, it is possible to obtain a coating composition having 1Day2Coat due to excellent quick-drying property and anti-staining property, and at the same time a coating film having weather resistance, a coating film obtained by curing the coating composition, and the coating composition.
  • the present invention relates to a multilayer coating film in which a coating film obtained by curing the coating composition is laminated on a cured coating film.
  • oxidation polymerization type paints such as synthetic resin mixed paints are widely used mainly in iron parts and wood parts because they are cheap and have excellent concealing properties, workability and finish.
  • examples of the oxidative polymerization type paint include solvent-type paint compositions containing an alkyd resin as a main component.
  • Oxidation polymerization type solvent-based paint composition containing alkyd resin as the main component has excellent coating workability and adhesiveness, and becomes a room temperature dry type paint.
  • the weather resistance is still unsatisfactory.
  • the so-called 1Day2Coat which coats twice a day, can be carried out, it will be an efficient painting work.
  • the so-called 1 Day 2 Coat is, for example, a coating method in which an object is coated 6 hours later and the coating film is further overlaid. Therefore, in order to carry out 1Day2Coat, a coating composition which is quick-drying at room temperature is required.
  • the drying rate of the solvent-based coating composition containing an alkyd resin as a main component is still insufficient, and a multi-layer coating film coated at intervals of about 6 hours has an undercoat (1 layer). If the top coat (second layer) is applied while the (eyes) are not sufficiently dried, the surface of the coating film becomes streaky and the occurrence of lifting has been a problem.
  • the coating composition capable of forming a coating film having excellent weather resistance is obtained by reacting a resin composition obtained by depolymerization by a transesterification reaction of a polyester resin with a compound having an isocyanate group.
  • a resin composition for paints obtained by polymerizing a compound having a radical-polymerizable double bond group in the presence of a resin composition has been proposed (see Patent Document 1).
  • Patent Document 2 the crispiness described in Patent Document 2 was confirmed under the drying condition of 40 ° C. for 7 days, and the excellent quick-drying property that 1Day2Coat can implement was still unsatisfactory.
  • the present invention has been made in view of the above background art, and due to its excellent quick-drying property and anti-staining property, 1Day2Coat is possible, and at the same time, a coating composition which gives a coating having weather resistance, and the coating composition It is intended to provide a coating film obtained by curing an object, and further a multilayer coating film product obtained by laminating a coating film obtained by curing the coating composition on a coating film obtained by curing the coating composition.
  • the present inventors have conducted earnest studies to solve the above problems. Then, it has been found that the above problem can be solved by containing a phenol-modified alkyd resin (I), a urethane-modified alkyd resin (II), and an alkyd resin (III) in a specific composition in a coating composition, The present invention has been completed.
  • the present invention is a coating composition for forming a coating film on a substrate, comprising a phenol-modified alkyd resin (I), a urethane-modified alkyd resin (II), and an alkyd resin (III),
  • the content of the phenol-modified alkyd resin (I) is 5 to 45 parts by mass based on 100 parts by mass of the resin solid content in the coating composition
  • the content of the urethane-modified alkyd resin (II) is the coating composition.
  • the coating composition is 5 to 45 parts by mass based on 100 parts by mass of the total resin solid content in the composition.
  • the urethane modification ratio of the urethane modified alkyd resin (II) may be 10 to 15%.
  • the pigment volume concentration (PVC) of the coating composition may be 20.0 to 35.0%.
  • the coating composition may further contain a rust preventive pigment.
  • the coating composition may be an undercoat paint.
  • the coating composition may be a top coating.
  • Another aspect of the present invention is a coating film obtained by curing the above coating composition.
  • Another aspect of the present invention is a multilayer coating film in which a coating film obtained by curing the above coating composition is laminated on a coating film obtained by curing the above coating composition.
  • the coating composition of the present invention has excellent quick-drying property and becomes a coating composition capable of 1 Day 2 Coat. Further, the coating film obtained by curing the coating composition of the present invention has anti-staining property.
  • jijimi as used in the present invention refers to lifting in which the surface of the coating film becomes jijimi when the topcoat (second layer) is applied while the undercoat (first layer) is insufficiently dried. .
  • the present invention is a coating composition for forming a coating film on a substrate, which comprises a phenol-modified alkyd resin (I), a urethane-modified alkyd resin (II), and an alkyd resin (III) as essential components. Including as. In the present invention, components other than these components may be included in the coating composition.
  • the coating composition of the present invention contains the above-mentioned three essential components in a specific composition, it is possible to achieve 1Day2Coat due to its excellent quick-drying property and anti-staining property. At the same time, it has weather resistance and further has gloss. It becomes possible to form a coating film.
  • the alkyd resin (III) contained in the coating composition of the present invention is a resin obtained by polycondensing a polybasic acid component, a polyhydric alcohol component, and an unsaturated fatty acid component.
  • a polybasic acid component a polyhydric alcohol component
  • an unsaturated fatty acid component an alkyd resin applicable to a general coating composition.
  • the alkyd resin (III) has high solubility and low viscosity, which improves workability, and also has good flowability, which contributes to the gloss of the resulting coating film. .
  • Examples of the polybasic acid component as a raw material of the alkyd resin include phthalic acid, isophthalic acid, terephthalic acid, trimellitic acid, tetrahydrophthalic acid, succinic acid, maleic acid, fumaric acid, adipic acid, itaconic acid, azelaic acid, Examples include pyromellitic acid and acid anhydrides thereof.
  • polyhydric alcohol component examples include ethylene glycol, propylene glycol, butanediol, decanediol, diethylene glycol, pentanediol, neopentyl glycol, glycerin, trimethylolethane, trimethylolpropane and pentaerythritol.
  • unsaturated fatty acid component for example, linseed oil, safflower oil, soybean oil, sesame oil, poppy oil, eno oil, corn oil, tall oil, sunflower oil, cottonseed oil, millet oil, dehydrated castor oil, rice bran oil, etc.
  • the fatty acids of oils and semi-drying oils, and synthetic unsaturated fatty acids represented by hydiene fatty acids can be exemplified.
  • the alkyd resin (III) applicable to the present invention may contain, in addition to the polybasic acid component, the polyhydric alcohol component, and the unsaturated fatty acid component, other components as a raw material for polycondensation.
  • other components include monobasic acids such as benzoic acid and p-hydroxybenzoic acid.
  • the alkyd resin can be manufactured by a known method. For example, a method of dehydrating and condensing each of the above raw material components in an inert gas atmosphere at about 200 to 240 ° C. until the acid value becomes 10 or less can be mentioned.
  • the alkyd resin (III) applicable to the present invention is not particularly limited, but for example, one having a number average molecular weight of 1000 to 5000 and an oil length of 30 to 80 is preferable.
  • the phenol-modified alkyd resin (I) contained in the coating composition of the present invention is a resin obtained by modifying the above-mentioned alkyd resin with a phenol resin.
  • the phenol-modified alkyd resin applicable to general coating compositions is not particularly limited.
  • the phenol-modified alkyd resin (I) has a benzene ring, which makes it possible to enhance the solvent resistance of the resulting coating film. Furthermore, the solubility in a weak solvent is low and the glass transition point (Tg) is high, so that the formed coating film has quick-drying property and anti-staining property.
  • phenol resin for modifying the alkyd resin a conventionally known phenol resin can be appropriately selected and used.
  • a resin obtained by reacting phenols with formaldehyde can be used.
  • the method for reacting the alkyd resin with the phenol resin is not particularly limited, and a known method can be applied. For example, a method in which an alkyd resin and a phenol resin are mixed and heated at a temperature of 120 to 180 ° C. for about 1 to 10 hours can be mentioned.
  • the phenol-modified alkyd resin (I) contained in the coating composition of the present invention may be a commercially available product, for example, Alkydia 1341 (manufactured by DIC), Arakied 7107 (manufactured by Arakawa Chemical Co., Ltd.), HIRENOL PL. -1000S (manufactured by Kolon Industries, Inc.) can be mentioned.
  • the content of the phenol-modified alkyd resin (I) with respect to 100 parts by mass of the resin solid content in the coating composition is such that the content of the urethane-modified alkyd resin (II) is 5 to 45 parts by mass. Therefore, it is 5 to 45 parts by mass. It is preferably 8 to 40 parts by mass, and particularly preferably 15 to 30 parts by mass.
  • the content of the phenol-modified alkyd resin (I) is 5 to 45 parts by mass with respect to 100 parts by mass of the resin solid content in the coating composition
  • the content of the urethane-modified alkyd resin (II) is 5 to 45 parts.
  • the coating composition has a stain resistance when applied repeatedly, and 1 Day 2 Coat is possible due to excellent quick drying property, and at the same time, a coating composition having a weather resistance can be obtained. That is, the coating composition has a well-balanced anti-staining property, quick-drying property, weather resistance and gloss.
  • the urethane-modified alkyd resin (II) contained in the coating composition of the present invention is a modified resin obtained by reacting a compound having an isocyanate group with the hydroxyl group of the above-mentioned alkyd resin.
  • any urethane-modified alkyd resin applicable to a general coating composition is not particularly limited.
  • the urethane-modified alkyd resin (II) has a urethane bond, which makes it possible to enhance the weather resistance of the resulting coating film.
  • the urethane bond has high cohesive force and low solubility in a weak solvent, and thus imparts anti-staining property.
  • a conventionally known compound can be appropriately selected and used.
  • hexamethylene diisocyanate including trimer
  • tetramethylene diisocyanate aliphatic diisocyanate such as trimethylhexamethylene diisocyanate
  • isophorone diisocyanate alicyclic polyisocyanate such as 4,4′-methylenebis (cyclohexyl isocyanate)
  • Aromatic diisocyanates such as 4,4′-diphenylmethane diisocyanate, tolylene diisocyanate and xylylene diisocyanate can be mentioned.
  • the method for reacting the compound having an isocyanate group with the alkyd resin is not particularly limited, and a known method can be applied.
  • a method of reacting a compound having an isocyanate group with a hydroxyl group of an alkyd resin in the presence of a catalyst is not particularly limited as long as it is a catalyst used in a usual urethanization reaction, and examples thereof include amine catalysts such as triethylamine, N-ethylmorpholine and triethylenediamine, and dibutyltin dilaurate. Examples include tin-based catalysts such as dioctyl tin dilaurate. You may use these catalysts individually or in mixture of 2 or more types.
  • the content of the urethane-modified alkyd resin (II) with respect to 100 parts by mass of the resin solid content in the coating composition is such that the content of the phenol-modified alkyd resin (I) is 5 to 45 parts by mass. Therefore, it is 5 to 45 parts by mass. It is preferably 7 to 40 parts by mass, and particularly preferably 10 to 20 parts by mass.
  • the content of the urethane modified alkyd resin (II) with respect to 100 parts by mass of the resin solid content in the coating composition is 5 to 45 under the condition that the phenol modified alkyd resin (I) is 5 to 45 parts by mass. If it is parts by mass, 1 Day 2 Coat becomes possible due to excellent quick-drying property and anti-staining property, and at the same time, it becomes a coating composition which gives a coating film having weather resistance. That is, the coating composition has a well-balanced anti-staining property, quick-drying property, weather resistance and gloss.
  • the urethane modification rate of the urethane modified alkyd resin (II) is preferably 10 to 15%. When the urethane modification rate is 10 to 15%, the cohesive force due to the urethane bond is increased, and the stain resistance is improved.
  • the coating composition of the present invention may optionally contain components other than the phenol-modified alkyd resin (I), urethane-modified alkyd resin (II) and alkyd resin (III), which are essential components.
  • Other components include, for example, pigments, combined resins, solvents, anti-sagging / precipitation preventing agents, color separation preventing agents, defoaming / anti-armpit preventing agents, leveling agents, formaldehyde catchers, dryers and the like.
  • the applicable pigment may be at least one of an extender pigment, a coloring pigment, and a rust preventive pigment, or may be a combination of two or more thereof.
  • the coating composition of the present invention preferably contains a rust preventive pigment.
  • a rust preventive pigment By containing a rust preventive pigment, rust preventive property is imparted, and for example, when the coating composition of the present invention is used as a base coat, a base coat film having a rust preventive function can be formed.
  • rust preventive pigment a conventionally known compound applicable to the coating composition can be appropriately selected and used.
  • zinc dust (Zn) zinc dust
  • Al aluminum powder
  • the solvent applicable to the coating composition of the present invention is not particularly limited, but it is preferably a weak solvent. Since the weak solvent has a low dissolving power for a coating film that has already been coated, it is possible to improve the coating repeatability and prevent the coating film from becoming blemishes. Moreover, odor can be reduced.
  • an aliphatic hydrocarbon solvent can be mentioned.
  • a solvent having a high flash point, a high boiling point, and a low harmfulness such as represented by mineral spirits and terpenes is preferable.
  • mineral spirit, white spirit, mineral terpene, isoparaffin, solvent kerosene, aromatic naphtha, VM & P naphtha, solvent naphtha and the like can be mentioned.
  • the pigment volume concentration (PVC) of the coating composition of the present invention is preferably in the range of 20 to 35%, particularly preferably 25 to 30%.
  • the pigment volume concentration (PVC) means the volume percentage (%) of the pigment in the total solid content of all the resin components and all the pigments in the coating composition.
  • the pigment volume concentration (PVC) of the coating composition is in the range of 20 to 35%, the hiding property becomes good while maintaining the gloss.
  • the coating composition of the present invention can be prepared by applying a method usually used by those skilled in the art. For example, each component is added to a disper, ball mill, S.I. G. It can be prepared by mixing with a mill, roll mill, planetary mixer or the like.
  • the substrate to which the coating composition of the present invention is applied is not particularly limited.
  • metal base materials such as steel, aluminum, and stainless steel, wood members, and the like can be mentioned.
  • the base material has various shapes depending on its application and can be applied to any shape.
  • the coating composition of the present invention can be applied to any of the undercoating coating and the topcoating coating.
  • the coating composition of the present invention has excellent quick-drying properties and also has resistance to bleeding when applied multiple times, and is a composition capable of 1 Day 2 Coat. It is possible to carry out the undercoating first and then overcoat with the overcoating.
  • the coating film of the present invention is obtained by curing the coating composition of the present invention.
  • the coating composition of the present invention can form a base coating film, and when it is used as an overcoating material, a surface coating film can be formed.
  • the coating film obtained by curing the coating composition of the present invention has improved antirust property when the coating composition contains an antirust pigment.
  • top coat when used as a top coat, it is a surface coating film that has gloss due to the alkyd resin (III) and weather resistance due to the urethane-modified alkyd resin (II) at the same time.
  • the coating composition of the present invention can be applied to any of the embodiments as an undercoating material and an overcoating material, it can be applied to a coating film obtained by curing the coating composition of the present invention, and further to the present invention. It is possible to form a multilayer coating film by laminating coating films obtained by curing the coating composition of (1).
  • the undercoating material and the coating composition of the present invention used as the topcoating material may be the same composition or different compositions. Good. Depending on the purpose, the composition can be appropriately changed and used within the scope of the present invention.
  • alkyd resin (III) > 21.5 parts of flaxseed oil, 32.1 parts of soybean oil, 7.1 parts of glycerin, 11.4 parts of pentaerythritol were placed in a flask equipped with a stirrer, a reflux condenser, a water separator, a temperature control device, and a nitrogen introducing tube. Lithium hydroxide (0.04 parts) was charged, the temperature was raised to 240 ° C over 30 minutes, and then the temperature was maintained at 240 ° C for 30 minutes.
  • urethane-modified alkyd resin (II) > [Production of Urethane Modified Alkyd Resin (II) A] (Manufacture of alkyd resin) 55 parts of soybean oil, 13 parts of glycerin, 13 parts of pentaerythritol, 0.04 parts of lithium hydroxide were charged into a flask equipped with a stirrer, a reflux condenser, a water separator, a temperature control device, and a nitrogen introduction tube, and it took 30 minutes. Then, the temperature was raised to 240 ° C. and maintained at 240 ° C. for 30 minutes.
  • Example 1 27.5 parts of alkyd resin (III) in terms of solid content, 2.0 parts of phenol-modified alkyd resin (I) in terms of solid content, 5.0 parts of urethane-modified alkyd resin (II) A in terms of solid content, A coating composition was prepared by compounding and formulating 3.0 parts of rust preventive pigment and stirring with a high speed disperser for 30 minutes.
  • mineral spirit was used as a solvent in the coating composition, and titanium oxide, an extender pigment, an anti-sagging agent, an antifoaming agent, a drier, etc. were added as components other than the above.
  • Examples 2 to 28, Comparative Examples 1 to 3 According to the formulation shown in Tables 1 to 7, the coating compositions of Examples 2 to 28 and Comparative Examples 1 to 3 were prepared in the same manner as the coating composition of Example 1.
  • "presence" of the rust preventive pigment means that 3.0 parts of the rust preventive pigment was blended and formulated as in the case of Example 1.
  • Example 21 is an example in which 5.0 parts of urethane-modified alkyd resin (II) B is blended, and Examples 22 and 23 are urethane-modified alkyd resin (II) C and urethane-modified alkyd resin (II) D, respectively. This is an example of compounding 5.0 parts.
  • Tables 1 to 7 also show the urethane modification ratio of the urethane modified alkyd resin (II) and the pigment volume concentration (PVC) of the obtained coating composition.
  • the obtained coating composition was diluted to 10%.
  • a tin plate was prepared, a 10% diluted coating composition was applied by a 4-22 MIL sizing tester, placed horizontally, and cured at 23 ° C. and 50% humidity for 6 hours to form an undercoat coating film.
  • a 10% diluted coating composition was applied onto the formed undercoat coating film with a brush so that the film thickness after drying was 35 ⁇ m to form an overcoat coating film.
  • the formed top-coat coating film was visually observed, and the thickness of the undercoat coating film in which streaks were generated was confirmed according to the following evaluation criteria to evaluate the streak resistance.
  • ⁇ : Undercoating film is 12 mils or more and tingling occurs.
  • ⁇ : Undercoating film is 9 mils and tingling occurs
  • Undercoating film is 7 mils or less and tingling occurs
  • the specular glossiness was evaluated according to JIS K 5516 7.11. Specifically, a glass plate is coated with an undiluted coating composition with a 4 MIL applicator, placed horizontally, and dried at 23 ° C. for 48 hours, and then a digital variable angle gloss meter (“UGV manufactured by Suga Test Instruments Co., Ltd.”). -5K ”) was used to measure 60 degree gloss. The evaluation criteria are shown below. ⁇ : 85 or more ⁇ : 80 or more and less than 85 ⁇ : 75 or more and less than 80 ⁇ : less than 75
  • the hiding rate was evaluated according to JIS K 5516 7.9. That is, it was evaluated according to the hiding rate test of JIS K 5600-4-1 4.1.2 Method B. Specifically, a non-diluted coating composition was applied to a hiding rate test paper (manufactured by Japan Test Panel Co., Ltd.) used in a general test method for coating with a 4 MIL applicator, and dried at 23 ° C. for 48 hours. The tristimulus value Y in the white part (YW) and the black part (YB) was measured using a colorimeter (CR-400 manufactured by Konica Minolta Co., Ltd.), and the hiding rate YB / YW was calculated as a percentage. The evaluation criteria are shown below. A: 95 or more O: 90 or more and less than 95 B: 85 or more and less than 90 X: 80 or more and less than 85
  • Polished steel plates (150 ⁇ 70 ⁇ 0.8 mm) were prepared as a base material for preparing test plates for weather resistance evaluation and rust prevention evaluation.
  • a rust preventive coating composition (Hypon Fine Primer II, manufactured by Nippon Paint Co., Ltd.) was applied to the back surface of the brushed steel sheet from which the solvent had been wiped off, and the back surface was back-sealed.
  • the coating composition obtained in Examples 1 to 28 and Comparative Examples 1 to 3 was applied to the surface of the polished steel plate so that the coating amount was 100 to 120 g / m 2. Then, it was painted using a brush. After standing at room temperature for 24 hours, the side surface (end surface) of the test plate was coated with the above-described rust preventive coating composition, and the side surface was side-sealed. Further, by leaving it to stand at room temperature for 6 days to dry, a test plate for weather resistance evaluation and rust prevention evaluation was obtained.
  • the test plate prepared above was evaluated for weather resistance with a chalky tape by outdoor exposure according to JIS K 5516 7.17. The exposure period was 1 year. The evaluation criteria are shown below. ⁇ : No swelling, peeling, or cracking, and the degree of change in color and gloss is not large. Chalking grade 3 or less. ⁇ : No swelling, peeling, or cracking, and the degree of change in color and gloss is not large. Chalking grade 4. B: No swelling, peeling, or cracking, and the degree of change in color and gloss is not large. Chalking grade 5. X: No swelling, peeling, or cracking, and a large degree of change in color and gloss. Chalking grade 5.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Wood Science & Technology (AREA)
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  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Application Of Or Painting With Fluid Materials (AREA)
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Abstract

L'invention concerne : une composition de matériau de revêtement qui, grâce à des propriétés supérieures de séchage rapide et une résistance au retrait supérieure, peut être revêtue deux fois par jour et qui produit simultanément un film de revêtement résistant aux intempéries ; un film de revêtement obtenu par durcissement de ladite composition de matériau de revêtement ; et une substance de film de revêtement multicouche obtenue par stratification d'un film de revêtement, dans lequel ladite composition de matériau de revêtement a été durcie, sur un autre film de revêtement dans lequel ladite composition de matériau de revêtement a été durcie. La composition de matériau de revêtement contient une résine alkyde modifiée par phénol (I), une résine alkyde modifiée par uréthane (II) et une résine alkyde (III) mélangée dans une composition spécifique.
PCT/JP2019/039862 2018-10-15 2019-10-09 Composition de matériau de revêtement, film de revêtement et film de revêtement multicouche WO2020080227A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SG11202103675VA SG11202103675VA (en) 2018-10-15 2019-10-09 Coating material composition, coating film, and multilayer coating film
CN201980067233.4A CN112867771B (zh) 2018-10-15 2019-10-09 涂料组合物、涂膜及多层涂膜

Applications Claiming Priority (2)

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JP2018-194536 2018-10-15
JP2018194536A JP6894417B2 (ja) 2018-10-15 2018-10-15 塗料組成物、塗膜および複層塗膜

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WO2020080227A1 true WO2020080227A1 (fr) 2020-04-23

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CN101875811A (zh) * 2010-07-06 2010-11-03 庞贝捷(涂料)昆山有限公司 船舶用醇酸涂料及其制备方法
CN105238238A (zh) * 2015-10-29 2016-01-13 中远关西涂料化工（天津）有限公司 一种水性醇酸涂料

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JPS58137471A (ja) * 1982-02-09 1983-08-15 Asahi Glass Co Ltd 旧塗膜上の補修塗装仕上げ方法
JPS5971324A (ja) * 1982-10-16 1984-04-23 Dainippon Ink & Chem Inc 水分散性樹脂組成物
US4649173A (en) * 1985-09-27 1987-03-10 Cargill, Incorporated Water reducible phenolic modified alkyd resin
CN101875811A (zh) * 2010-07-06 2010-11-03 庞贝捷(涂料)昆山有限公司 船舶用醇酸涂料及其制备方法
CN105238238A (zh) * 2015-10-29 2016-01-13 中远关西涂料化工（天津）有限公司 一种水性醇酸涂料

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CN112867771A (zh) 2021-05-28

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