WO2007148530A1 - Produit de revêtement en poudre, procédé d'élaboration dudit produit et procédé pour former un film de revêtement à l'aide du produit de revêtement en poudre - Google Patents

Produit de revêtement en poudre, procédé d'élaboration dudit produit et procédé pour former un film de revêtement à l'aide du produit de revêtement en poudre Download PDF

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Publication number
WO2007148530A1
WO2007148530A1 PCT/JP2007/061402 JP2007061402W WO2007148530A1 WO 2007148530 A1 WO2007148530 A1 WO 2007148530A1 JP 2007061402 W JP2007061402 W JP 2007061402W WO 2007148530 A1 WO2007148530 A1 WO 2007148530A1
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WIPO (PCT)
Prior art keywords
powder
paint
coating
resin
binder
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/JP2007/061402
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English (en)
Japanese (ja)
Inventor
Yoshinori Kato
Mitsuo Wakimoto
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.)
Kansai Paint Co Ltd
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Kansai Paint Co Ltd
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 Kansai Paint Co Ltd filed Critical Kansai Paint Co Ltd
Priority to JP2008522377A priority Critical patent/JPWO2007148530A1/ja
Publication of WO2007148530A1 publication Critical patent/WO2007148530A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • C09D5/03—Powdery paints
    • C09D5/033—Powdery paints characterised by the additives
    • C09D5/035—Coloring agents, e.g. pigments

Definitions

  • the present invention provides a coating film that is free from unevenness and rough skin and has excellent design.
  • the present invention relates to a powder coating material that can be produced, a manufacturing method thereof, and a coating film forming method using the powder coating material.
  • powder coatings have been widely used for outdoor or indoor applications in the field of industrial products such as home appliances, automobile parts, vehicles, office supplies, steel furniture, and building materials.
  • various studies have been conducted on powder coatings for glittering finishes using flake-like glittering pigments from the viewpoint of imparting high design properties.
  • a method for producing such a powder coating material a method of mixing a flaky pigment made of aluminum or the like into the coating material, specifically, a coating composition containing additives such as a flaky pigment or a coloring pigment is melted.
  • a method of kneading and then pulverizing kneading powder method
  • a method of producing a powder coating material containing no flake pigment by kneading and pulverizing method in advance, and mixing this powder coating material with the flake pigment (dry blending) Law) has been adopted.
  • the flake pigment is uniformly dispersed in the coating film-forming resin by kneading, that is, mixing the composition while applying a shearing force at a temperature at which the resin melts.
  • kneading that is, mixing the composition while applying a shearing force at a temperature at which the resin melts.
  • the lake-like pigment is easily damaged.
  • flakes When aluminum powder is used as a pigment, it is a problem that the aluminum powder is destroyed by the shearing force applied during melt-kneading, and the aluminum powder turns black or gray. Even if a powder coating containing such broken aluminum powder is applied, it is no longer possible to obtain a glittering coating film having a metallic luster.
  • a powder coating composition containing a resin and, if necessary, an additive such as a color pigment is uniformly kneaded in advance to obtain paint particles, and this is combined with a flaky pigment.
  • the glittering powder coating produced by this method has several problems in coating workability and coating film characteristics because the bonding force between the coating particles and the flake pigment is weak.
  • the paint that did not adhere to the object to be coated has a lower flake pigment content than the original, as described above, and it cannot be reused due to its poor design. In mass production processes, this is an economic burden.
  • electrostatic painting When deposits such as aluminum powder adhering to the machine needle and its surroundings peel off from the tip of the electrostatic coating machine and adhere to the object to be coated, a convex bump is formed on the painted surface. Problems arise when the appearance is severely impaired.
  • an object of the present invention is to provide a powder coating material capable of obtaining a coating film excellent in design without occurrence of unevenness or rough skin, a manufacturing method thereof, and a coating film forming method using the powder coating material There is to do.
  • the powder coating material of the present invention achieves the above object, and is a powder coating material containing a base coating powder (A), a flaky glitter pigment (B), and a binder (C).
  • the binder (C) contains a hydrogenated resin obtained by copolymerizing dicyclopentene and other polymerizable monomers and / or oligomers and hydrogenated in an amount of 80% or more, and the flaky glitter pigment (B) Is bonded to the base paint powder (A) via the binder (C).
  • the paint powder and the flake-like glitter pigment are uniformly bonded regardless of the type of constituent resin component of the paint powder, and there is no occurrence of unevenness or rough skin. A coating film with excellent design properties can be obtained.
  • the “paint powder” used as the base paint powder (A) is conventionally used for powder paints, and is used for coating film-forming resins, as well as coloring pigments and extender pigments added as necessary.
  • the coating composition containing the additive and other additives is melt-kneaded, pulverized and powdered, and can be produced by a known method.
  • thermosetting resins and thermo-plastic resins that have been conventionally used as coating-film forming resins for powder coatings can be used. It is common.
  • thermosetting resins include: (i) a combination of a hydroxyl group-containing solid resin and a curing agent having a functional group that undergoes a curing reaction with the hydroxyl group and heat; A combination of a resin and a curing agent having a functional group that undergoes a curing reaction with the carboxy group by heat; (iii) an epoxy group-containing solid resin; and a curing agent having a functional group that undergoes a curing reaction with the epoxy group by heat. Combinations can be mentioned.
  • the term “solid” as used herein refers to a resin that is solid at room temperature, and preferably has a softening point of 80 to 200 ° C.
  • the curing agent may be solid or liquid, but preferably a solid one is used.
  • hydroxyl group-containing solid resin for example, resins used in known powder coating materials such as a hydroxyl group-containing acrylic resin and a hydroxyl group-containing polyester resin can be used.
  • the “curing agent having a functional group that undergoes a curing reaction with a hydroxyl group and heat” that can be used in combination include, for example, a curing agent used in known powder coating materials such as blocked polyisocyanate compounds and amino brass resin. Is mentioned.
  • the “strength loxyl group-containing solid resin” for example, resins used in known powder coating materials such as a carboxyl group-containing acryl resin and a carboxyl group-containing polyester resin can be used.
  • the “curing agent having a functional group that undergoes a curing reaction with a carboxy group by heat” that can be used in combination with this solid resin containing lpoxy group include, for example, bisphenol A to epichlorohydrin type epoxy resin, alicyclic epoxy resin. Examples thereof include epoxy resins such as nopolac-type epoxy resins and epoxy group-containing acryl resins, and curing agents used in known powder coating materials such as hydroxyalkylamide compounds.
  • epoxy group-containing solid resin for example, it is used in known powder coatings such as bisphenol A to epichlorohydrin type epoxy resin, alicyclic epoxy resin, nopolac type epoxy resin, epoxy group-containing acryl resin, and the like. Resin that can be used.
  • the “curing agent having a functional group that undergoes a curing reaction with an epoxy group and heat” that can be used in combination with the epoxy group-containing solid resin include, for example, a force oxyl group-containing polyester resin, an organic acid polyhydrazide compound, an imidazole compound, Curing agents used in known powder coatings such as dicyandiamide compounds, polycarboxylic acid compounds, and acid anhydrides are listed.
  • thermosetting resins exemplified above those having the following combinations are suitable because of excellent coating film performance (such as weather resistance) and finish (such as design and smoothness).
  • coating film performance such as weather resistance
  • finish such as design and smoothness
  • the polyester resin having a force lpoxyl group used here has a resin acid value of 20 to 200 mg KOH / g, preferably about 25 to L5O mg KOH / g, and a softening point of about 5 Those having a temperature of 0 to 150 °, preferably about 70 to 140 ° C. are preferred.
  • polyester resin containing the force lpoxyl group the above-mentioned aromatic or alicyclic dicarboxylic acid, the above-mentioned dihydric alcohol, and monocarboxylic acid such as benzoic acid as necessary
  • (anhydrous) trimellit Trivalent or higher carboxylic acid such as acid, trimethylol ethane, trimethylol propane, glycerin, pen erythritol and other trihydric or higher alcohols are appropriately reacted so as to be in the above acid value range.
  • the resulting resin can be exemplified. '
  • hydroxyalkyl amide compounds examples include ⁇ , ⁇ '—di () S-hydroxyxetyl) acetamide, bis (; 6-hydroxyethyl) adipamide, bis (; 6-hydroxypropyl).
  • S-hydroxypropyl)] adipamide and the like are suitable.
  • the use ratio of the carboxyl group-containing polyester resin to the hydroxyalkyl amide compound is as follows: per hydroxyl group of the hydroxyl group-containing polyester resin, 0.5--1, A range of 5, preferably 0.8 to 1.2 is suitable.
  • the epoxy resin has an epoxy equivalent of 200 to 300, preferably 30 to 200, and a softening point of about 20 to 200, preferably about 30 to 1. Those having a temperature of 50 ° C are preferred.
  • Specific examples of the epoxy resin include bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol B type epoxy resin, acrylic type epoxy resin, brominated epoxy resin and cycloaliphatic epoxy resin.
  • epoxy resins containing a cyclohexene oxide group, a tricyclodecene oxide group, a cyclopentene oxide group, etc. are preferred from the viewpoint of weather resistance.
  • the use ratio of the above-mentioned force lpoxyl group-containing polyester resin and the epoxy resin is such that the epoxy group is 0.5 to 1.5, preferably 0.8 to 1.2, per force lpoxyl group of the carboxy group-containing polyester resin.
  • color pigments used in paint powders include titanium dioxide, iron oxide, petal, carbon black, phthalocyanine blue, phthalocyanine green, quinacridone pigments, isoindolinone pigments, azo pigments, Mention may be made of inorganic colored pigments and organic colored pigments such as Céron pigments and various calcined pigments.
  • extreme pigment added to the paint powder include calcium carbonate, glass fiber, silica, talc, barium sulfate, and kaolin.
  • anti-bacterial pigments such as zinc powder and aluminum trihydrogen phosphate can be used as necessary. Incidentally, these pigments are merely examples, and the present invention is not limited to the above description.
  • additives include surface conditioners, curing accelerators, sagging inhibitors, ultraviolet absorbers, light stabilizers, antioxidants, dyes, and the like. Can be used as needed.
  • a coating composition containing the resin as described above, a color pigment added as necessary, an additive, and the like is prepared, and these are kneaded and homogenized at a temperature at which the resin melts.
  • the obtained paint pellets are pulverized and classified to produce a base paint powder having an average particle size of about 10 to 10 O ⁇ m, preferably 20 to 6 O ⁇ m.
  • the “average particle size” means an integrated value from the small particle size side obtained from the result obtained by measuring the particle size distribution of the base paint powder or pigment particles after classification with a general particle size distribution meter. It shall mean a 50% particle size (D50). Such a particle size distribution can be measured by a diffraction or scattering intensity pattern generated by applying light to the particles. This is because the intensity pattern depends on the particle size.
  • the particle size distribution analyzer used here include Nikkiso Co., Ltd. Microtrac 9 2 20 FRA, Microtrac HRA, and Beckman Cole Yuichi Co., Ltd. An example of the measurement method will be described in detail. After adding 30 m 1 of water to a container, adding 0.01 to 0.1 g of neutral detergent and stirring, Add 0.2 g, disperse by stirring for 2 minutes with stirring, and measure this with the particle size distribution analyzer.
  • the flake-like glitter pigment (B) is not particularly limited as long as it reflects the received light and gives the coating film a metallic feeling and a design such as a pearly feeling (light interference pattern).
  • preferable examples include metal powders such as aluminum powder, metal flakes such as stainless steel flakes, mica, mica siron oxide (MIO, flaky iron oxide), pearl pigments such as glass flakes and pearl mica. 1 type or 2 types or more chosen from the group which consists of can be mentioned.
  • Each of the glitter pigments has been subjected to a conventionally known surface treatment, and further, resin-coated aluminum powder, silica-coated aluminum powder, fluorine compound-coated aluminum powder, titanium coating mica, hastelloy coating This includes glass flakes and their coatings.
  • the flaky glitter pigment (B) preferably has an average particle size of 2 m or more and 100 m or less, more preferably 3 m or more and 8 O ⁇ m or less. Further, the preferred thickness is not less than 0. Olm and not more than 1 Om, and more preferably not less than 0.05m and not more than 6m. More specifically, in the case of aluminum flakes, the average particle size is preferably 2 m or more and 50 m or less, and the thickness is preferably 0.05 m or more and 5 / m or less. The average particle size is preferably 5 m or more and 70 ⁇ m or less, and the thickness is 0.1 l ⁇ m or more and 5 m or less.
  • the proportion of the pigment (B) in the whole powder coating is 0.1 to 20% by mass, preferably 0.5 to 15% by mass from the viewpoint of design and the like.
  • the binder (C) includes a hydrogenated resin obtained by copolymerizing dicyclopentene and other polymerizable monomers and oligomers or oligomers and hydrogenating 80% or more. From the viewpoint of finishing the film, it is desirable to contain 50% by mass or more, preferably 60% by mass or more.
  • polymerizable monomers and / or oligomers include C 4 to C 1 D olefins that can be copolymerized with dicyclic mouth pens, such as base paint powder (A) and pigment (B).
  • base paint powder (A) and pigment (B) such as base paint powder (A) and pigment (B).
  • Styrene or styrene derivatives such as styrene, -methylstyrene, / 3-methylstyrene, vinyltoluene, oligomers, etc. Is preferably included.
  • the hydrogenation rate of the hydrogenated resin is 80% or more, preferably 90% or more, more preferably 95% or more, from the viewpoint of the weather resistance of the formed coating film.
  • the hydrogenation rate is before hydrogenation. It can be obtained from the bromine number of the resin and the resin after hydrogenation. The bromine number can be measured by a method based on JIS.
  • the softening point of the hydrogenated resin is preferably in the range of about 50 to 20 ° C., preferably about 70 to 150 ° C.
  • Examples of the hydrogenated resin as described above include “Imabe P—
  • the binder (C) may be, for example, a chroman-indene resin, a terpene resin, a terpene phenol resin, an aromatic hydrocarbon-modified terpene resin, or a hydrogenated resin.
  • Terpene resins hydrogenated terpenes, phenol resins, rosin resins, hydrogenated rosin ester resins, rosin-modified phenol resins, alkyl phenol resins, alkyl phenol / acetylene resins, alkyl phenol / formaldehyde resins , Styrene tree Resins such as fats, aliphatic petroleum resins, alicyclic petroleum resins, copolymer petroleum resins, aromatic petroleum resins, and waxes such as polyethylene wax can be included.
  • the proportion of the binder (C) in the powder coating is 0.1-5% by mass, preferably 0.5-3% by mass, so that the base coating powder (A) and the pigment (B) This is desirable from the standpoints of bondability and the finished appearance of the formed coating film.
  • the powder coating material of the present invention may further contain an additive according to necessity or purpose.
  • additives include additives for improving paint fluidity such as silica particles and aluminum oxide.
  • the method for producing a powder coating material of the present invention generally comprises a step of mixing a base coating powder (A) and a pigment (B), and a liquid binder in which a binder (C) is dissolved in an organic solvent is mixed with the mixture. It includes a process and a drying process. Preferably, it is desirable to first thoroughly mix the paint components, particularly the base paint powder and the pigment particles. If the mixing is insufficient, the base paint powder or pigment particles are unevenly distributed, and the ratio of the base paint powders or the pigment particles bonded to each other increases, so that it is difficult to obtain a coating film with high design properties. Because.
  • the mixing method is not particularly limited as long as the constituent components of the paint can be sufficiently mixed.
  • the mixing method is generally performed using a mechanical stirring mixer or an airflow stirring mixer.
  • a mixing condition using a mechanical stirring type mixer a condition in which constituent components such as a base coating powder and pigment particles can be uniformly mixed and the pigment particles are not damaged is adopted.
  • the rotational speed of the stirring mixer that satisfies such conditions is preferably a peripheral speed of 3 to 6 m / s.
  • a base coating powder, pigment particles After uniformly mixing, a liquid binder in which the binder is dissolved in an organic solvent is uniformly mixed with the base paint powder and the pigment particles.
  • the liquid binder is required to uniformly adhere to the base paint powder and the pigment particles, and in order to achieve such uniform adhesion, it is preferable to add the liquid binder by dropping or spraying, It is particularly preferable to carry out by spraying.
  • the method for producing a powder coating material of the present invention includes a drying step.
  • the drying step is performed in order to secure the bond between the base paint powder and the pigment particles, for example, by volatilizing the organic solvent in the liquid binder.
  • the drying means is not particularly limited, and examples thereof include air supply. In consideration of production work efficiency, it is preferable to use heated air as the air.
  • the temperature of the air may be determined as appropriate, but it must be at least below the softening point of the powder coating resin component. This is because the resin softens when the softening point is reached and blocking of the powder particles occurs.
  • the “softening point” in the present invention is, for example, a temperature increase rate of 3 ° C./min in a glycerin heating bath using a ring and ball automatic softening point tester (manufactured by Meihosha Seisakusho). It can be measured as the temperature (° C) when the sample softens and the sphere falls.
  • the temperature of the dry air can generally be 20 to 120 ° C, and more preferably 40 to 100 ° C.
  • the air supply timing may be appropriately determined. For example, heated air may be supplied after the binder is added and then cooled, or heated air is supplied while the binder is added, and then cooled. It's okay.
  • the powder coating produced as described above can be applied to the object to be coated by electrostatic coating, fluid dipping, spraying, in-mold, etc., hot air furnace, infrared furnace, induction heating
  • a cured coating film can be formed by baking in an oven or the like.
  • the base coating powder and the pigment particles are strongly bonded, these components are separated even when coating by the electrostatic coating method, and the tip of the coating machine, in particular, the coating machine. It can be applied stably without sticking to the part.
  • the powder coating can be applied to an object to be coated made of a metal material to form a coating film.
  • the type of metal material is not particularly limited, but for example, ferrous metal materials such as the most versatile steel and alloy steel, non-ferrous metal materials such as aluminum, stainless steel, zinc, tin, copper, titanium, magnesium and brass Metal alloy materials such as galvanized steel sheets and tin-plated steel sheets, chromic acid-based or phosphate-based, titanium-based, zircon-based, organometallic salt-based, and other non-chromium-based chemical conversion treatments
  • ferrous metal materials such as the most versatile steel and alloy steel
  • non-ferrous metal materials such as aluminum, stainless steel, zinc, tin, copper, titanium, magnesium and brass
  • Metal alloy materials such as galvanized steel sheets and tin-plated steel sheets, chromic acid-based or phosphate-based, titanium-based, zircon-based, organometallic salt-based, and other non-chromium-based chemical conversion treatments
  • Illustrative examples include treated metal materials, aluminum metal materials and alloys that have been subjected to anodizing treatment and
  • the object to be coated made of the above metal material may reach the final product after undergoing the painting process, but it may be a part of the final product or a production intermediate, as long as it requires painting.
  • the name does not matter. Also,
  • Consisting of a metal material means that the painted surface is mainly composed of a metal material, and a part of the surface may have a material other than a metal material such as a resin. Portions other than the surface may be made of materials other than metal materials.
  • the film thickness of the coating film to be formed is usually 30 to 2500 m, and preferably in the range of 40 to 1550 m.
  • the baking condition of the powder coating is generally that the surface temperature of the metal material is 130 to 350 ° C, preferably 140 to 2550, 30 seconds to 60 minutes, preferably 1 to 50 minutes.
  • Parts and % in the terms indicate “parts by mass” and “% by mass” unless otherwise specified.
  • Powerful loxyl group-containing polyester resin “Findic M 8 9 6 2” (manufactured by Dainippon Shinki Chemical Co., Ltd., trade name, softening temperature 1 1 2 ° C, acid value 3 5 mg KOHZ g) 9 5 parts
  • Droxyalkylamide curing agent “XL-5 5 2” (trade name, manufactured by EMS Co., Ltd .; 6-hydroxykistil adipamide) Mix 5 parts, melt knead with EXTRUDER, cool, and finely adjust with atomizer 1
  • the base coating powder (A-1) was manufactured by pulverizing and filtering through 150 mesh.
  • dicyclopentagen-based hydrogenated resin “Imabe P— 1 2 5” manufactured by Idemitsu Petrochemical Co., Ltd., trade name, hydrogenation rate 10 0%, softening point 1 2 5 ° C) 1 part was dissolved in 20 parts of normal heptane to obtain a binder solution (C-1).
  • High-resoxyl group-containing polyester resin “Fine Dick M 8 9 6 2” 7 7 parts, Epoxy resin “Fine Dick A— 2 2 9— 3 0 J (Dainippon Ink Chemical Co., Ltd., trade name, softening temperature 10 9, epoxy equivalent 5 2 5 g / ea) 2 3 parts are mixed, melt kneaded with an extruder, cooled,
  • the base paint powder (A-2) was produced by finely pulverizing with a photomizer and filtering with a 150 mesh.
  • a powder paint was obtained in the same manner as in Example 1 except that the obtained base paint powder (A-2) was used.
  • terpene-phenol-based hydrogenated resin “YS-Polyster TH-1 30” manufactured by Yashara Chemical Co., Ltd., softening point 130 ° C. 1 part is dissolved in 20 parts of normal heptane. A solution (C 1 2) was obtained.
  • a powder coating material was obtained in the same manner as in Example 1 except that the obtained binder solution (C-12) was used.
  • a powder coating material was obtained in the same manner as in Example 1 except that the obtained binder solution (C-13) was used.
  • binder As a binder, 1 part of dicyclopentagen resin “Maru force Let's M—84 5 A” (manufactured by Maruzen Petrochemical Co., Ltd., trade name, softening point 1 45, not hydrogenated) It was dissolved in 20 parts of the evening to obtain a binder solution (C-4).
  • a powder coating material was obtained in the same manner as in Example 1 except that the obtained binder solution (C14) was used.
  • Comparative Example 4 A powder paint was obtained in the same manner as in Example 1 except that no binder was used.
  • a powder paint was obtained in the same manner as in Example 1 except that the obtained binder solution (C-5) was used.
  • a powder paint was obtained in the same manner as in Example 2 except that the binder solution (C15) was used.
  • SPCC steel sheets (0.8 x 70 x 150 mm) subjected to chemical conversion treatment with zinc phosphate using the powder coatings obtained in the above examples and comparative examples have a cured film thickness of about 5 Electrostatic powder coating was applied to a thickness of 0 ⁇ m and heated at 180 ° C for 30 minutes to prepare a test coating. Each obtained test coating board was used for the following evaluation test. The results are shown in Table 1. The amounts shown in Table 1 are those blended in parts by mass.
  • the metallic feeling was evaluated according to the following criteria.
  • ⁇ Uniform state without metallic unevenness or rough skin
  • ⁇ Metallic unevenness or rough skin occurs slightly
  • X Metallic unevenness or rough skin occurs considerably
  • the feeling of metallicity is poor
  • Weather resistance Each test coated plate was subjected to a sunshine weathering overnight for 50 hours, then immersed in water at 40 ° C for 120 hours, and the coated surface immediately after pulling was visually evaluated.
  • ⁇ Good
  • ⁇ Slightly poor (slightly yellowing, choking, etc.)
  • X Poor (severe yellowing, chiking, etc.)
  • the present invention is industrially useful because it makes it possible to obtain a coating film that is free from unevenness and rough skin and has excellent design properties.

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

Abstract

L'invention concerne un produit de revêtement en poudre contenant une poudre de revêtement de base (A), un pigment brillant à paillettes (B) et un liant (C). Ce produit est caractérisé en ce que le liant (C) contient une résine hydrogénée obtenue par copolymérisation de dicyclopentadiène avec un autre monomère et/ou oligomère polymérisable et par hydrogénation d'au moins 80 % du copolymère et en ce que le pigment brillant à paillettes (B) est lié à la poudre de revêtement de base (A) par l'intermédiaire du liant (C). L'invention concerne également un procédé d'élaboration dudit produit et un procédé pour former un film de revêtement à l'aide du produit de revêtement en poudre. Ainsi, un film de revêtement sans aspérité ni rugosité de surface et facile à modeler peut être obtenu.
PCT/JP2007/061402 2006-06-22 2007-05-30 Produit de revêtement en poudre, procédé d'élaboration dudit produit et procédé pour former un film de revêtement à l'aide du produit de revêtement en poudre Ceased WO2007148530A1 (fr)

Priority Applications (1)

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JP2008522377A JPWO2007148530A1 (ja) 2006-06-22 2007-05-30 粉体塗料、粉体塗料の製造方法、及び粉体塗料を用いた塗膜形成方法

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JP2006173011 2006-06-22
JP2006-173011 2006-06-22

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WO2007148530A1 true WO2007148530A1 (fr) 2007-12-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110938355A (zh) * 2019-11-12 2020-03-31 芜湖职业技术学院 一种多彩花纹粉末涂料及其制备方法

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JPS6272766A (ja) * 1985-09-27 1987-04-03 Idemitsu Petrochem Co Ltd 焼付け塗装用粉体塗料組成物
JPH10176012A (ja) * 1996-12-17 1998-06-30 Idemitsu Petrochem Co Ltd 耐ブロッキング性共重合体水素添加物
JP2001520686A (ja) * 1997-04-14 2001-10-30 ディーエスエム エヌ．ブイ． 粉体塗料バインダー組成物
JP2004107487A (ja) * 2002-09-18 2004-04-08 Kubokou Paint Kk 光輝性粉体塗料の製造方法

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JPS492344B1 (fr) * 1970-12-23 1974-01-19
JPS62506A (ja) * 1985-06-27 1987-01-06 Idemitsu Petrochem Co Ltd 炭化水素樹脂の製造方法
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