WO2020175766A1 - 분체도료 조성물 - Google Patents
분체도료 조성물 Download PDFInfo
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- WO2020175766A1 WO2020175766A1 PCT/KR2019/015957 KR2019015957W WO2020175766A1 WO 2020175766 A1 WO2020175766 A1 WO 2020175766A1 KR 2019015957 W KR2019015957 W KR 2019015957W WO 2020175766 A1 WO2020175766 A1 WO 2020175766A1
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- WIPO (PCT)
- Prior art keywords
- epoxy resin
- powder coating
- coating composition
- weight
- urethane
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- 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.)
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Classifications
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
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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
- 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 powder coating composition excellent in heat resistance and boiling water resistance.
- Epoxy resin powder coating has a high glass transition temperature, so it has excellent thermal properties, as well as excellent adhesive strength, chemical resistance, mechanical strength, and electrical insulation, preventing corrosion and improving durability of steel pipes or pipelines buried underground or under the sea. It is being used for the purpose of. However, as the environment in which the pipe is buried becomes harsher, the conventional epoxy resin powder coating having a glass transition temperature of about 100° C. cannot obtain a sufficient effect to protect the pipe from corrosion. Accordingly, there is a demand for improvement in thermal, chemical, and physical properties of the epoxy coating film, and studies on paints that satisfy these physical properties are also ongoing.
- U.S. Patent No. 9,617,413 discloses a powder coating composition using a divinylarene dioxide resin and a dicyandiamide curing agent.
- Japanese Patent No. 6,342,696 discloses a powder coating composition comprising a trifunctional or higher epoxy resin and at least one curing agent of a guanidine compound and an imidazole compound.
- the powder coating composition even in the case of the powder coating composition, there is a problem that the boiling water resistance and adhesion required in a high temperature environment are insufficient.
- the present invention provides a powder coating composition excellent in heat resistance and boiling water resistance.
- the present invention provides a powder coating composition
- a powder coating composition comprising at least one of a urethane-modified epoxy resin and a bisphenol A-type epoxy resin, a curing agent and an extender pigment.
- the powder coating composition according to the present invention has excellent heat resistance, boiling water resistance, and negative electrode peeling resistance, and decreases the generation rate of bubbles, thereby improving adhesion and appearance characteristics decrease due to bubbles generated during coating film formation.
- the powder coating composition of the present invention is excellent in impact resistance and bending resistance, while securing constant workability and a glass transition temperature of 120° C. or higher, and can effectively protect it when applied to a steel pipe.
- the powder coating composition according to the present invention includes at least one of a urethane-modified epoxy resin and a bisphenol A-type epoxy resin, a curing agent and an extender pigment.
- the powder coating composition according to the present invention may further include additives commonly used in the field of colored pigments, catalysts and powder coatings, if necessary.
- looking at the composition of the powder coating composition of the present invention is as follows.
- the epoxy resin includes at least one of a urethane-modified epoxy resin and a bisphenol A-type epoxy resin as the main resin.
- Non-limiting examples of usable urethane-modified epoxy resins include urethane-modified novolac epoxy resins, urethane-modified bisphenol epoxy resins, urethane-modified cresol epoxy resins, or a mixture thereof.
- the urethane-modified epoxy resin may include a urethane-modified novolac epoxy resin.
- the urethane-modified epoxy resin may be an epoxy resin obtained from a reaction of a urethane prepolymer and an epoxy resin.
- the urethane prepolymer may be prepared by reacting a polyol and an isocyanate compound.
- the type of the polyol is not particularly limited, for example, one selected from the group consisting of polyester polyol, polyoxypropylene glycol, polybutadiene, bisphenol A, diethylene glycol, dipropylene glycol, polycaprolactone, and polycaprolactam. You can use the above.
- the kind of the isocyanate compound is not particularly limited, but, for example, 2,4-toluene diisocyanate, 4,4-diphenylmethane diisocyanate, 1,6-hexamethylene diisocyanate, 1,5-naphthalene diisocyanate, and 4 At least one selected from the group consisting of ,4-biphenyl diisocyanate may be used.
- the isocyanate modification rate of the urethane-modified epoxy resin is not particularly limited, but may be, for example, 10% to 40%, and another example, 15% to 30%.
- the epoxy equivalent (EEW) and softening point of the urethane-modified epoxy resin are not particularly limited, but the epoxy equivalent (EEW) may be 250 to 700 g/eq, for example, 400 to 650 g/eq, and the softening point is 100°C to It may be 130 °C, for example 105 °C to 120 °C.
- the urethane-modified epoxy resin has an epoxy equivalent and a softening point in the above-described range, the dispersibility of the coating film may be excellent.
- the viscosity and glass transition temperature of the urethane-modified epoxy resin are not particularly limited, but the viscosity (175° C., ICI viscometer) may be 1,000 to 3,500 cps, for example, 1,500 to 3,000 cps, and the glass transition temperature is 50 to 65° C. , For example, it may be 52 to 60 °C.
- the urethane-modified epoxy resin has a viscosity and a glass transition temperature in the above-described range, chemical resistance may be excellent.
- Bisphenol A-type epoxy resin is an epoxy resin obtained from the reaction of bisphenol A (BPA) and epichlorohydrin.
- BPA bisphenol A
- epichlorohydrin a conventional epoxy resin known in the art may be used without particular limitation.
- the epoxy equivalent (EEW) and softening point of the bisphenol A-type epoxy resin are not particularly limited, but the epoxy equivalent may be 700 to 1,500 g/eq, for example, 1,000 to 1,300 g/eq, and the softening point may be 100 to 130°C. have.
- the bisphenol A-type epoxy resin has an epoxy equivalent weight and a softening point in the above-described range, storage stability may be excellent.
- the viscosity and glass transition temperature of the bisphenol A-type epoxy resin are not particularly limited, but the viscosity (200° C., ICI viscometer) may be 1,000 to 5,000 cps, for example, 1,500 to 4,500 cps, and the glass transition temperature is 50 to 80° C. , For example, it may be 60 to 70 °C.
- the bisphenol A-type epoxy resin has a viscosity and a glass transition temperature in the above-described ranges, appearance characteristics and flexibility of the coating film are improved, thereby minimizing the occurrence of cracks in the coating film.
- the powder coating composition of the present invention may include the urethane-modified epoxy resin and bisphenol A-type epoxy resin as an epoxy resin.
- the mixing ratio of the urethane-modified epoxy resin and the bisphenol A-type epoxy resin is not particularly limited, but may be a weight ratio of 1 to 5: 1, for example, 1 to 3: 1.
- heat resistance and boiling water resistance of the powder coating composition may be improved.
- the epoxy resin may be 45 to 90% by weight, for example, 60 to 80% by weight, and another example, 65 to 75% by weight based on the total weight of the powder coating composition.
- content of the epoxy resin is less than 45% by weight, a heat resistance problem may occur due to a decrease in the glass transition temperature of the coating film, and when it exceeds 90% by weight, mechanical properties may be poor.
- the powder coating composition of the present invention may contain one or more of an amine-based curing agent and a phenol-based curing agent as a curing agent.
- the amine-based curing agent is not particularly limited as long as it is an amine-based curing agent capable of curing reaction with an epoxy resin.
- an aliphatic amine-based curing agent there are an aliphatic amine-based curing agent, an alicyclic amine-based curing agent, and an aromatic amine-based curing agent, and these may be used alone or in combination of two or more.
- the amine value of the amine-based curing agent is not particularly limited, and may be, for example, 15 to 30 mgKOH/g. When the amine value of the amine-based curing agent satisfies the above range, excellent corrosion resistance can be secured.
- phenolic curing agent those conventionally used in the powder coating field may be used without limitation.
- Non-limiting examples of the phenolic curing agent that can be used include resol-type phenolic resins, novolac-type phenolic resins, and polyhydroxystyrene resins.
- the resol-type phenolic resin include aniline-modified resol resin and melamine-modified resol resin.
- the novolak-type phenolic resin include phenol novolac resin, cresol novolak resin, tert-butylphenol novolac resin, nonylphenol novolac resin, naphthol novolac resin, dicyclopentadiene-modified phenol resin, terpene-modified phenol.
- Type resin triphenol-methane type resin, naphthol aralkyl resin, and the like.
- the polyhydroxystyrene resin include poly(p-hydroxystyrene).
- the hydroxyl group equivalent of the phenolic curing agent is not particularly limited, and may be, for example, 200 to 300 g/eq.
- the curing agent may be included in an amount of 0.1 to 5% by weight, for example, 0.1 to 3% by weight, based on the total weight of the powder coating composition.
- content of the curing agent is within the above-described range, the degree of curing of the coating film is high, and physical properties of the coating film may be improved.
- the powder coating composition of the present invention may further include an extender pigment commonly used in the powder coating field within a range that does not impair the intrinsic properties of the composition.
- the extender pigment can further improve the high temperature/high pressure chemical resistance of the paint.
- Non-limiting examples of extender pigments that can be used include calcium carbonate, barium sulfate, feldspar, kaolin, alumina hydroxide, magnesium hydroxide, titanium dioxide, magnesium carbonate, alumina, mica, montmorillonite, olastonite, talc, aluminum nitride, silicon nitride, There are boron nitride, aluminum oxide, aluminum nitride, and the like, and these may be used alone or in combination of two or more.
- the extender pigment may include one or more extender pigments selected from the group of inorganic pigments including calcium carbonate, barium sulfate, feldspar, and kaolin.
- the extender pigment may include barium sulfate and feldspar.
- the blending ratio of barium sulfate and feldspar is not particularly limited, but may be 1: 0.5 to 5, for example, 1: 0.8 to 2.5 weight ratio.
- the extender pigment includes barium sulfate and feldspar in the above-described blending ratio, it is possible to secure excellent corrosion resistance by improving the boiling water resistance and long-term negative electrode peeling resistance of the coating film.
- the shape of the extender pigment may be spherical or amorphous, and is not particularly limited thereto.
- the average particle diameter of the extender pigment is not particularly limited, and may be, for example, 1 to 20 ⁇ m.
- the extender pigment may be 5 to 45% by weight based on the total weight of the powder coating composition, in another example 15 to 40% by weight.
- content of the extender pigment is in the above-described range, mechanical properties, impact resistance, and adhesion of the coating film may be improved.
- the powder coating composition of the present invention may further include a colored pigment commonly used in the powder coating field within a range that does not impair the inherent properties of the composition.
- the colored pigment may be mixed with an epoxy resin to express a desired color (color) in the powder coating or used to increase the strength or gloss of the coating film.
- colored pigments organic pigments, inorganic pigments, metallic pigments, aluminum-paste, pearl, etc., which are commonly used in powder coatings, can be used without limitation, and these can be used alone or in two or more types.
- Non-limiting examples of the color pigments that can be used include azo-based, phthalocyanine-based, iron oxide-based, cobalt-based, carbonate-based, sulfate-based, silicate-based, chromate-based pigments, and the like, such as titanium dioxide, zinc oxide, bismuth vanadium. Date, cyanine green, carbon black, iron oxide, sulfur iron oxide, navy blue, cyanine blue, and mixtures of two or more thereof.
- the content of the colored pigment is not particularly limited, and may be, for example, 0.1 to 15% by weight, for example 0.1 to 10% by weight, based on the total weight of the powder coating composition.
- the content of the colored pigment is within the above-described range, the color expression of the coating film to which the powder coating composition of the present invention is applied is excellent, and the hiding property and mechanical properties of the coating film can be improved.
- the powder coating composition of the present invention may further include a catalyst commonly used in the powder coating field within a range that does not harm the inherent properties of the composition.
- the catalyst is a material that accelerates the reaction between the epoxy resin and the curing agent, which is the main resin, and includes, for example, an imidazole catalyst, a phosphonium catalyst, an amine catalyst, and a metal catalyst. Can be used by mixing.
- Non-limiting examples of the imidazole-based catalyst include imidazole, 2-methylimidazole, 2-ethylimidazole, 2-decylimidazole, 2-hectylimidazole, 2-isopropylimida Sol, 2-undecylimidazole, 2-heptanedecylimidazole, 2-ethyl-4-methylimidazole, 2-phenylimidazole, 2-phenyl-4-methylimidazole, 1-benzyl -2-methylimidazole, 1-benzyl-2-phenylimidazole, 1-cyanoethyl-2-methylimidazole, 1-cyanoethyl-2-ethyl-4-methylimidazole, 1 -Cyanoethyl-2-undecylimidazole, 1-cyanoethyl-2-phenylimidazole, 1-cyanoethyl-2-undecyl-imidazole trimellitate, 1-
- Non-limiting examples of the phosphonium-based catalyst include benzyltriphenyl phosphonium chloride, butyltriphenyl phosphonium chloride, butyltriphenyl phosphonium bromide, ethyltriphenyl phosphonium acetate, ethyltriphenyl phosphonium bromide, ethyltriphenyl phosphonium Phonium iodide, tetraphenyl phosphonium bromide, tetraphenyl phosphonium chloride or tetraphenyl phosphonium iodide.
- Non-limiting examples of the amine-based catalyst include triethylamine, triethylenediamine, tetramethyl-1,3-butanediamine, ethylmorpholine, diazabicycloundecene, and diazabicyclononene.
- the metal catalyst may include organic metal complexes or organic metal salts such as cobalt, copper, zinc, iron, nickel, manganese, and tin.
- organometallic complex examples include organic cobalt complexes such as cobalt (II) acetylacetonate and cobalt (III) acetylacetonate, organic copper complexes such as copper (II) acetylacetonate, and zinc (II) acetylacetonate.
- Organic zinc complexes organic iron complexes such as iron (III) acetylacetonate, organic nickel complexes such as nickel (II) acetylacetonate, organic manganese complexes such as manganese (II) acetylacetonate, etc. It is not limited.
- organic metal salt include, but are not limited to, zinc octylate, tin octylate, zinc naphthenate, cobalt naphthenate, tin stearate, zinc stearate, and the like.
- the content of the catalyst may be adjusted according to the reactivity of the epoxy resin and the curing agent.
- the content of the catalyst may be 0.01 to 2% by weight, in another example 0.01 to 1% by weight, based on the total weight of the powder coating composition.
- the content of the catalyst is out of the above-described range, mechanical properties of the coating film may be deteriorated.
- the powder coating composition of the present invention may further include additives commonly used in the powder coating field within a range that does not harm the inherent properties of the composition.
- Non-limiting examples of additives that can be used in the present invention include leveling agents, pinhole inhibitors, dispersants, adhesion promoters, flow additives, flow improvers, low stress agents, cratering inhibitors, coupling agents, gloss modifiers, flame retardants, matting agents. , An auxiliary curing agent and a light absorbing agent, and these may be used alone or in combination of two or more.
- the leveling agent is intended to improve the appearance characteristics of the coating film while improving adhesion in the composition by leveling the coating composition to be coated smoothly and smoothly.
- the pinhole inhibitor allows volatile substances to be released from the coating film during the curing process, thereby preventing the occurrence of pinholes in the coating film and improving appearance characteristics.
- pinhole inhibitors include amide-based (eg, ceraflour 960 (BYK)), polypropylene-based, stearic acid-based pinhole inhibitors, and the like.
- the pinhole inhibitor may be benzoin or a mixture of benzoin and an amide pinhole inhibitor.
- dispersant conventional ones known in the art may be used without limitation, and as an example, a polyacrylic dispersant may be used that is adsorbed on the surface of a colored pigment to maximize a degassing effect.
- the adhesion promoter is a substance for enhancing the adhesion of the coating film, and a silane adhesion promoter or the like may be used.
- Non-limiting examples of the adhesion promoter include mercaptoalkylakoxysilane, gammaglydoxypropyltrimethoxysilane, and the like, and as an example, the adhesion promoter is a mercaptoalkylalkoxysilane having a molecular weight of 150 to 300 g/mol.
- the fluid additive is used to maximize the fluidity effect, and can secure long-term fluidity while improving the adhesion of the paint.
- waxes, silica, and the like may be used as the flowable additive.
- Non-limiting examples of flowable additives that can be used include paraffin wax, natural wax (e.g., carnauba wax, etc.), synthetic wax (e.g., polyethylene wax, etc.), silica, etc., which are used alone or in combination of two or more. Can be used.
- waxes may be mixed with silica and used.
- the flowable additive may be used as an additive component after adding it after making a chip.
- the flow improving agent is used to lower the surface tension of the coating film and realize a flexible appearance, and a conventional one known in the art may be used.
- Non-limiting examples include acrylic or silicone flow enhancers.
- Such additives may be added within a range known in the art, for example, 0.01 to 15% by weight based on the total weight of the powder coating composition, and in another example, 0.1 to 5% by weight. When the content of the additive is within the above-described range, the appearance and hardness of the coating film may be improved.
- the powder coating composition according to the present invention may be prepared by a method known in the art, and for example, may be prepared through processes such as basis weight of raw materials, dry premixing, dispersion and coarse pulverization, pulverization and classification.
- a raw material mixture containing an epoxy resin, a curing agent, an extender pigment, a colored pigment, a catalyst, and optionally an additive is added to a container mixer to be uniformly mixed, and the mixed composition is melt-mixed and then pulverized.
- a container mixer for example, by melting and dispersing the raw material mixture at 85 to 120°C by a melt-kneading device such as a kneader or an extruder to prepare chips with a predetermined thickness (eg, 1 to 5 mm). Thereafter, the prepared chips may be pulverized in a range of 30 to 100 ⁇ m using a pulverizing device such as a high-speed mixer, and then classified to prepare a powder coating composition.
- the classification process is not particularly limited, and may be filtered by, for example, 80 to 120 mesh. Accordingly, a powder coating having an average particle size in the range of 30 to 100 ⁇ m can be obtained.
- the average particle diameter of the powder is not particularly limited, but when the above-described range is satisfied, coating workability and appearance characteristics of the coating film may be improved.
- the surface of the powder coating particles according to the present invention may be coated with a fine powder such as silica.
- a pulverization mixing method in which fine powder is added and mixed during pulverization, a dry mixing method using a Henschel mixer or the like can be used.
- a powder coating composition of Comparative Example 1-3 was prepared in the same manner as in Example, except for the composition of Table 3 below.
- the units used in Table 3 below are weight percent.
- Epoxy resin 1 Urethane modified epoxy resin (epoxy equivalent 465 g/eq, softening point 115 °C, viscosity (175 °C, ICI viscometer) 2,250 cps, glass transition temperature 57 °C, isocyanate modification rate 25%)
- Epoxy resin 2 Urethane modified epoxy resin (epoxy equivalent 400 g/eq, softening point 105°C, viscosity (175°C, ICI viscometer) 1,500 cps, glass transition temperature 52°C, isocyanate modification rate 15%)
- Epoxy resin 3 urethane modified epoxy resin (epoxy equivalent 600 g/eq, softening point 120 °C, viscosity (175 °C, ICI viscometer) 3,000 cps, glass transition temperature 60 °C, isocyanate modification rate 30%)
- Epoxy resin 4 Urethane modified epoxy resin (epoxy equivalent 900 g/eq, softening point 90 °C, viscosity (175 °C, ICI viscometer) 1,000 cps, glass transition temperature 45 °C)
- Epoxy resin 5 Bisphenol A-type epoxy resin (epoxy equivalent 1,150 g/eq, softening point 120 °C, viscosity (200 °C, ICI viscometer) 2,300 cps, glass transition temperature 65 °C)
- Epoxy resin 6 Bisphenol A-type epoxy resin (epoxy equivalent 1,000 g/eq, softening point 115 °C, viscosity (200 °C, ICI viscometer) 1,500 cps, glass transition temperature 60 °C)
- Epoxy resin 7 Bisphenol A-type epoxy resin (epoxy equivalent 1,300 g/eq, softening point 125 °C, viscosity (200 °C, ICI viscometer) 4,500 cps, glass transition temperature 70 °C)
- Epoxy resin 8 Bisphenol A-type epoxy resin (epoxy equivalent 650 g/eq, softening point 130 °C, viscosity (200 °C, ICI viscometer) 3,000 cps, glass transition temperature 45 °C)
- Extender pigment 1 barium sulfate
- Imidazole-based catalyst (Curesol, Shikoku Corporation)
- Additive 1 Acrylic polymer (Resiflow P-67, Estron Chemical, leveling agent)
- the powder coating compositions prepared according to Examples 1-12 and 1-3 were electrostatically spray-painted on specimens preheated at 230° C. for 1 hour to have a thickness of 400 ⁇ m. Thereafter, heat was applied at 230° C. for 5 minutes, and then immersion-cooled with water to prepare a coating specimen, and the physical properties were measured as follows, and the results are shown in Tables 4 to 6 below.
- the coagulation time was measured through a geltime tester at a temperature of 204 °C.
- the angle and temperature of the specimen are set to 3° (5 °C), 3.75 ° (10 °C), and 5.5 ° (25 °C). It was measured for cracks.
- the temperature of the specimen was set to 25°C, and after applying an impact of 4 J/g, it was checked whether damage caused by the impact was performed through a holiday tester.
- the specimen was immersed in a constant temperature water bath at 75° C. and taken out after 28 days to evaluate adhesion.
- adhesion After cooling the removed specimen at room temperature for 1 hour, scrape a rectangular shape of 15 mm in width and 30 mm in length with a knife until the material is exposed, and push the knife between the coating film and the material around the exposed part of the material. After measuring the adhesion by the principle of, the peeling area was evaluated.
- the evaluation criteria are as follows.
- salt water of 3% concentration was applied to the surface of the coating film to make it abut, and a container was used to prevent evaporation, and a voltage of 1.5 V was applied to the substrate at 65° C. for 30 days.
- the peeling distance of was measured twice. If the peeling distance was less than 20 mm, it was evaluated as pass, and if it exceeded 20 mm, it was evaluated as failing.
- the coating film formed of the powder coating composition of Examples 1-12 according to the present invention was generally superior to the coating film formed of the powder coating composition of Comparative Example 1-3.
- the coating film formed of the powder coating composition of Examples 1-12 had excellent boiling water resistance and negative electrode peeling resistance, and improved the bubble generation rate to secure excellent adhesion.
- the powder coating composition according to the present invention has excellent heat resistance, boiling water resistance, and negative electrode peeling resistance, and decreases the generation rate of bubbles, thereby improving adhesion and appearance characteristics decrease due to bubbles generated during coating film formation.
- the powder coating composition of the present invention is excellent in impact resistance and bending resistance, while securing constant workability and a glass transition temperature of 120° C. or higher, and can effectively protect it when applied to a steel pipe.
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Abstract
Description
Claims (7)
- 우레탄 변성 에폭시 수지 및 비스페놀 에이형 에폭시 수지 중 1종 이상, 경화제 및 2종 이상의 체질 안료를 포함하는 분체도료 조성물.
- 제1항에 있어서, 상기 우레탄 변성 에폭시 수지의 에폭시 당량은 250 내지 700 g/eq이고, 연화점은 100 내지 130 ℃이고, 점도(175 ℃, ICI 점도계)는 1,000 내지 3,500 cps이고, 유리전이온도는 50 내지 65 ℃인 분체도료 조성물.
- 제1항에 있어서, 상기 비스페놀 에이형 에폭시 수지의 에폭시 당량은 700 내지 1,500 g/eq이고, 연화점은 100 내지 130 ℃이고, 점도(200 ℃, ICI 점도계)는 1,000 내지 5,000 cps이고, 유리전이온도는 50 내지 80 ℃인 분체도료 조성물.
- 제1항에 있어서, 상기 우레탄 변성 에폭시 수지 및 비스페놀 에이형 에폭시 수지의 배합비는 1 내지 5 : 1 중량비인 분체도료 조성물.
- 제1항에 있어서, 상기 체질 안료는 탄산칼슘, 황산바륨, 장석 및 카오린으로 이루어진 군에서 선택되는 1종 이상을 포함하는 분체도료 조성물.
- 제1항에 있어서, 상기 체질 안료는 황산바륨 및 장석을 포함하고, 상기 황산 바륨 및 장석의 배합비는 1 : 0.5 내지 5 중량비인 분체도료 조성물.
- 제1항에 있어서, 분체도료 조성물 총 중량을 기준으로 우레탄 변성 에폭시 및 비스페놀 에이형 에폭시 수지 중 1종 이상 45 내지 90 중량%, 경화제 0.1 내지 5 중량% 및 체질 안료 5 내지 45 중량%를 포함하는 분체도료 조성물.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2019-0022506 | 2019-02-26 | ||
| KR1020190022506A KR102261877B1 (ko) | 2019-02-26 | 2019-02-26 | 분체도료 조성물 |
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| Publication Number | Publication Date |
|---|---|
| WO2020175766A1 true WO2020175766A1 (ko) | 2020-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/KR2019/015957 Ceased WO2020175766A1 (ko) | 2019-02-26 | 2019-11-20 | 분체도료 조성물 |
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|---|---|
| KR (1) | KR102261877B1 (ko) |
| WO (1) | WO2020175766A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085594A (zh) * | 2021-12-30 | 2022-02-25 | 江苏佳搏实业发展集团有限公司 | 一种氨基树脂改性酚醛环氧树脂防腐耐污粉末涂料、一种金属预制板防腐耐污涂层 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102794060B1 (ko) * | 2022-11-22 | 2025-04-11 | 주식회사 케이씨씨 | 분체 도료 조성물 |
| KR102651687B1 (ko) * | 2023-08-09 | 2024-03-29 | 성은종합철강(주) | 중방식용 친환경 수성 에폭시 방식도료 조성물과 이를 이용한 도장 강관 및 그 제조방법 |
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| KR20020055793A (ko) * | 2000-12-29 | 2002-07-10 | 정종순 | 복층 분체도막 |
| JP4473089B2 (ja) * | 2004-10-14 | 2010-06-02 | 株式会社エービーシー建材研究所 | 塗り床材用樹脂組成物及び塗り床材塗膜 |
| KR20110112965A (ko) * | 2010-04-08 | 2011-10-14 | 주식회사 케이씨씨 | 고온 내식성이 우수한 강관용 열경화성 분체도료 조성물 |
| KR20120113982A (ko) * | 2011-04-06 | 2012-10-16 | 주식회사 케이씨씨 | 유리 전이온도가 높고, 고온 고압 저항성 및 굴곡성이 우수한 강관 내부용 열경화성 분체도료 조성물 |
| KR20170109620A (ko) * | 2015-11-17 | 2017-09-29 | 닛뽄 페인트 마린 가부시키가이샤 | 방식 도료 조성물 및 건조 도막의 형성 방법 |
-
2019
- 2019-02-26 KR KR1020190022506A patent/KR102261877B1/ko active Active
- 2019-11-20 WO PCT/KR2019/015957 patent/WO2020175766A1/ko not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020055793A (ko) * | 2000-12-29 | 2002-07-10 | 정종순 | 복층 분체도막 |
| JP4473089B2 (ja) * | 2004-10-14 | 2010-06-02 | 株式会社エービーシー建材研究所 | 塗り床材用樹脂組成物及び塗り床材塗膜 |
| KR20110112965A (ko) * | 2010-04-08 | 2011-10-14 | 주식회사 케이씨씨 | 고온 내식성이 우수한 강관용 열경화성 분체도료 조성물 |
| KR20120113982A (ko) * | 2011-04-06 | 2012-10-16 | 주식회사 케이씨씨 | 유리 전이온도가 높고, 고온 고압 저항성 및 굴곡성이 우수한 강관 내부용 열경화성 분체도료 조성물 |
| KR20170109620A (ko) * | 2015-11-17 | 2017-09-29 | 닛뽄 페인트 마린 가부시키가이샤 | 방식 도료 조성물 및 건조 도막의 형성 방법 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085594A (zh) * | 2021-12-30 | 2022-02-25 | 江苏佳搏实业发展集团有限公司 | 一种氨基树脂改性酚醛环氧树脂防腐耐污粉末涂料、一种金属预制板防腐耐污涂层 |
| CN114085594B (zh) * | 2021-12-30 | 2022-05-31 | 江苏佳搏实业发展集团有限公司 | 一种氨基树脂改性酚醛环氧树脂防腐耐污粉末涂料、一种金属预制板防腐耐污涂层 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102261877B1 (ko) | 2021-06-07 |
| KR20200104070A (ko) | 2020-09-03 |
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