WO2019216093A1 - 共重合ポリエステル、水分散体およびこれを用いた水性塗料 - Google Patents
共重合ポリエステル、水分散体およびこれを用いた水性塗料 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/123—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/137—Acids or hydroxy compounds containing cycloaliphatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/123—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/123—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/127—Acids containing aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/199—Acids or hydroxy compounds containing cycloaliphatic rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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
- 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
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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
- 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
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C09D7/20—Diluents or solvents
Definitions
- the present invention relates to a copolyester, an aqueous dispersion, and an aqueous paint using the same. More specifically, the present invention relates to a resin and a water-based paint excellent in storage stability and processability of a water dispersion and water resistance.
- Copolyester is widely used as a raw material for resin compositions used for coating agents, inks, adhesives, and the like, and is generally composed of a polyvalent carboxylic acid and a polyhydric alcohol. Flexibility by selecting and combining polyvalent carboxylic acids and polyhydric alcohols and the molecular weight can be freely controlled, so they are widely used in various applications including coating agents and adhesives.
- an object of the present invention is to provide a copolymer polyester and an aqueous dispersion that are effective as a resin component to be blended in an aqueous coating material, and further, a substrate under conditions assuming exposure to moisture for a long period of time.
- Another object of the present invention is to provide a coating composition that can form a coating film that has a water-resistant adhesive property, has a workability (high flexibility) equivalent to that of a high-molecular-weight polyester, and is excellent in hardness.
- this invention consists of the following structures.
- a copolyester comprising a polyvalent carboxylic acid component and a polyhydric alcohol component as a copolymerization component, the aromatic polyvalent carboxylic acid component and the alicyclic polyvalent
- the total of the carboxylic acid components is 100 mol% and the total polyhydric alcohol component is 100 mol%, two hydroxyl groups are bonded by an alkylene group having 5 or less carbon atoms
- Copolyester containing 10 to 40 mol% of a glycol component (a) having an alkyl group having 2 or more carbon atoms as a chain, a glass transition temperature of ⁇ 10 to 20 ° C., and an acid value of 150 to 400 equivalents / ton (A).
- the glycol component (a) in which two hydroxyl groups are bonded by an alkylene group having 5 or less carbon atoms and the alkyl group having 2 or more carbon atoms as a side chain of the alkylene group has a structure represented by the general formula (1) It is preferable to have 2,2-butylethylpropanediol.
- R 1 and R 2 are each independently a linear or branched alkyl group having 1 to 10 carbon atoms, and n is an integer of 1 to 3.
- a plurality of R 1 and R 2 may be the same as or different from each other, provided that one of R 1 and R 2 has 2 or more carbon atoms.
- the number average molecular weight of the copolyester (A) is preferably in the range of 5000 to 13000.
- the water-based paint using the copolymerized polyester of the present invention exhibits high hardness, workability (flexibility), water-resistant adhesion and good storage stability. For this reason, it is suitable for a water-based paint applied to a metal or plastic substrate.
- the water-based paint using the copolymerized polyester (A) of the present invention exhibits excellent hardness, workability and water-resistant adhesion. For this reason, it is suitable for a water-based paint that is exposed to the outdoor environment after coating, and the product manufactured using the copolymerized polyester (A) of the present invention has high hardness, high flexibility, and high water resistance.
- the copolymerized polyester (A) of the present invention preferably has a chemical structure that can be obtained from a polycondensate of a polyvalent carboxylic acid component and a polyhydric alcohol component.
- the alcohol component is preferably composed of one or more selected components.
- the polyvalent carboxylic acid component is preferably an aromatic polycarboxylic acid or an alicyclic polycarboxylic acid, and may be an aromatic dicarboxylic acid or an alicyclic dicarboxylic acid. More preferably. It is necessary that the total copolymerization amount of aromatic polycarboxylic acid and alicyclic polycarboxylic acid in all polyvalent carboxylic acid components is 100 mol%. When the total of the aromatic polycarboxylic acid component or the alicyclic polyvalent carboxylic acid component is 100 mol% as the copolymer component, the storage stability of the aqueous dispersion is improved.
- the aromatic dicarboxylic acid constituting the copolyester (A) of the present invention is not particularly limited, but terephthalic acid, isophthalic acid, orthophthalic acid, naphthalenedicarboxylic acid, 4,4′-dicarboxybiphenyl, 5-sodium sulfo Isophthalic acid or the like can be used. Of these, terephthalic acid and isophthalic acid are preferable, and isophthalic acid is more preferable.
- the alicyclic dicarboxylic acid constituting the copolymerized polyester (A) of the present invention is not particularly limited, but 1,4-cyclohexanedicarboxylic acid, 1,3-cyclohexanedicarboxylic acid, tetrahydrophthalic acid, methyltetrahydrophthalic acid, Tetrahydrophthalic anhydride, methyltetrahydrophthalic anhydride, hydrogenated naphthalenedicarboxylic acid and the like can be used. Of these, 1,4-cyclohexanedicarboxylic acid and tetrahydrophthalic anhydride are preferable.
- the aromatic polyvalent carboxylic acid component is preferably 60 mol% or more, more preferably 70 mol% or more, still more preferably 80 mol% or more, Especially preferably, it is 90 mol% or more, and 100 mol% may be sufficient.
- the hardness of the coating film produced using the copolymerized polyester (A) tends to increase.
- the copolymerized polyester (A) of the present invention when the total polyhydric alcohol component is 100 mol%, two hydroxyl groups are bonded with an alkylene group having 5 or less carbon atoms, and carbon is used as a side chain of the alkylene group. It is necessary that the glycol component (a) (hereinafter also simply referred to as “glycol component (a)”) having an alkyl group of several 3 or more is copolymerized in an amount of 10 to 40 mol%.
- the alkylene group to which the two hydroxyl groups are bonded may have 1 or more carbon atoms, preferably 2 or more, and more preferably 3 or more. Moreover, it is preferable that carbon number of an alkylene group is 4 or less.
- the hardness of a coating film becomes favorable by making carbon number of an alkylene group into the said range.
- the alkyl group which is a side chain of the alkylene group preferably has 4 or more carbon atoms, more preferably 5 or more, and still more preferably 6 or more.
- Water resistance becomes favorable by making carbon number of an alkylene group more than the said value.
- the upper limit of the carbon number of the alkyl group is not particularly limited, but is preferably 20 or less, more preferably 15 or less, and still more preferably 10 or less.
- the dispersibility in water becomes favorable by making carbon number of an alkylene group below the said value.
- the copolymerization amount of the glycol component (a) is required to be 10 mol% or more, preferably 12 mol% or more, more preferably 15 mol% or more when the total polyhydric alcohol is 100 mol%. Moreover, 40 mol% or less is required, 38 mol% or less is preferable, 35 mol% or less is more preferable, and 30 mol% or less is more preferable.
- the water resistance of copolymerized polyester (A) and the storage stability of an aqueous dispersion become favorable, and the workability to a base material becomes favorable by setting it as the said upper limit or less.
- the glycol component (a) is preferably a compound represented by the general formula (1).
- R 1 and R 2 are preferably each independently a linear or branched alkyl group having 1 to 10 carbon atoms, and both R 1 and R 2 are linear and have a prime number of 1 to 10 An alkyl group is preferred.
- the carbon number is preferably 2 or more, more preferably 3 or more, and still more preferably 4 or more.
- 9 or less is preferable, More preferably, it is 8 or less, More preferably, it is 6 or less.
- none of R 1 and R 2 will have 1 carbon atom, and it is preferable that one of R 1 and R 2 has 2 or more carbon atoms.
- the total number of carbon atoms of R 1 and R 2 is preferably 3 or more, more preferably 4 or more, and even more preferably 5 or more. Water resistance becomes favorable by setting it as the said value or more. It is preferable that the total number of carbon atoms of R 1 and R 2 is 20 or less, more preferably 15 or less, more preferably 10 or less.
- a plurality of R 1 and R 2 may be the same or different, and preferably R 1 has 1 to 3 carbon atoms, R 2 has 3 to 5 carbon atoms, and n is 1 to 3 It is preferably an integer.
- the hardness of a coating film becomes favorable by setting it as the said value or less.
- the glycol component represented by the general formula (1) is not particularly limited, but 2-methyl-2-ethyl-1,3-propanediol, 2,2-diethyl-1,3-propanediol, 2-ethyl -2-n-propyl-1,3-propanediol, 2,2-di-n-propyl-1,3-propanediol, 2-n-butyl-2-ethyl-1,3-propanediol (hereinafter BEPG) 2,2-di-n-butyl-1,3-propanediol, 2,4-diethyl-1,5-pentanediol, 2-ethyl-1,3-hexanediol, and the like. These can be used alone or in combination of two or more. Of these, 2-n-butyl-2-ethyl-1,3-propanediol, which has a high effect of improving water resistance, is preferable.
- the polyhydric alcohol constituting the copolyester (A) of the present invention may contain a polyhydric alcohol component other than the glycol component (a).
- the polyhydric alcohol component other than the glycol component (a) is not particularly limited.
- alicyclic glycol components such as 1,4-cyclohexanedimethanol and tricyclodecane dimethanol
- polyalkylene ether glycol components such as polytetramethylene glycol and polypropylene glycol
- a trihydric or higher polyhydric alcohol can also be used, and examples thereof include glycerin, trimethylolpropane, trimethylolethane, pentaerythritol, ⁇ -methylglucose, mannitol, and sorbitol.
- ethylene glycol 1,2-propanediol, 2-methyl-1,3-propanediol, neopentyl glycol, 3-methyl-1,5-pentanediol, 1,6-hexanediol, 1,4-cyclohexane Dimethanol.
- the glass transition temperature of the copolyester (A) of the present invention needs to be in the range of ⁇ 10 to 20 ° C.
- the glass transition temperature is ⁇ 9 ° C. or higher, more preferably ⁇ 8 ° C. or higher.
- the hardness of a coating film becomes favorable by making glass transition temperature more than the said lower limit.
- 18 degrees C or less is preferable, More preferably, it is 15 degrees C or less.
- the copolymerized polyester (A) of the present invention may be copolymerized with a trivalent or higher polyvalent carboxylic acid component and / or a trivalent or higher polyhydric alcohol component.
- the trivalent or higher polyvalent carboxylic acid component include aromatic carboxylic acids such as trimellitic acid, pyromellitic acid, benzophenone tetracarboxylic acid, trimesic acid, trimellitic anhydride (TMA), and pyromellitic anhydride (PMDA).
- aliphatic carboxylic acids such as 1,2,3,4-butanetetracarboxylic acid, etc., and these can be used alone or in combination of two or more.
- the copolymerization amount of the trivalent or higher polyvalent carboxylic acid component is preferably 5 mol% or less, more preferably 3 mol% or less, when the total polyvalent carboxylic acid component is 100 mol%. More preferably, it is 1 mol% or less.
- the trihydric or higher polyhydric alcohol component include glycerin, trimethylolpropane, trimethylolethane, pentaerythritol, ⁇ -methylglucose, mannitol, and sorbitol. One or more of these can be used. Is possible.
- the copolymerization amount of the trivalent or higher polyvalent carboxylic acid component is preferably 5 mol% or less, more preferably 3 mol% or less, when the total polyvalent carboxylic acid component is 100 mol%. More preferably, it is 1 mol% or less. If the copolymerization amount of the trivalent or higher polyvalent carboxylic acid component and / or the trivalent or higher polyhydric alcohol component is too large, gelation may occur during the polymerization of the copolymerized polyester (A).
- the number average molecular weight of the copolymerized polyester (A) of the present invention is preferably 5000 or more and 13000 or less, and more preferably 6000 or more and 10,000 or less. By making the number average molecular weight within the above range, the workability and water-resistant adhesion of the coating film become good. Furthermore, the viscosity of the paint is good and handling is easy.
- the reduced viscosity of the copolymerized polyester (A) of the present invention is preferably 0.20 dl / g or more, and more preferably 0.25 dl / g or more. Further, it is preferably 0.45 dl / g or less, more preferably 0.40 dl / g or less, and further preferably 0.37 dl / g or less.
- the reduced viscosity is preferably 0.20 dl / g or more, and more preferably 0.25 dl / g or more. Further, it is preferably 0.45 dl / g or less, more preferably 0.40 dl / g or less, and further preferably 0.37 dl / g or less.
- Examples of the polymerization condensation reaction for producing the copolyester (A) of the present invention include 1) heating a polyvalent carboxylic acid and a polyhydric alcohol in the presence of an arbitrary catalyst, passing through a dehydration esterification step, Method of performing polyhydric alcohol / polycondensation reaction 2) Heating an alcohol ester of polyhydric carboxylic acid and polyhydric alcohol in the presence of an arbitrary catalyst, through a transesterification reaction, depolyhydric alcohol / polycondensation reaction There are methods. In the methods 1) and 2), part or all of the acid component may be substituted with an acid anhydride.
- a conventionally known polymerization catalyst for example, a titanium compound such as tetra-n-butyl titanate, tetraisopropyl titanate, titanium oxyacetylcetonate, antimony trioxide, Antimony compounds such as butoxyantimony, germanium compounds such as germanium oxide and tetra-n-butoxygermanium, and acetates such as magnesium, iron, zinc, manganese, cobalt, and aluminum can be used.
- titanium compound such as tetra-n-butyl titanate, tetraisopropyl titanate, titanium oxyacetylcetonate, antimony trioxide, Antimony compounds such as butoxyantimony, germanium compounds such as germanium oxide and tetra-n-butoxygermanium, and acetates such as magnesium, iron, zinc, manganese, cobalt, and aluminum
- These catalysts can be used alone or in combination of two or more.
- the acid value of the copolymerized polyester (A) of the present invention is required to be 150 to 400 equivalent / ton.
- the acid value is preferably 160 equivalents / ton or more, more preferably 180 equivalents / ton or more, and further preferably 200 equivalents / ton or more.
- the stability of the aqueous dispersion of the copolyester (A) is improved.
- 380 equivalent / ton or less is preferable, More preferably, it is 350 equivalent / ton or less.
- a method for increasing the acid value of the copolymerized polyester (A) of the present invention for example, (1) after completion of the polycondensation reaction, a trivalent or higher polyvalent carboxylic acid and / or a trivalent or higher polyhydric anhydride is used. There are methods of adding and reacting (acid addition) and (2) heat, oxygen, water, etc. during the polycondensation reaction to intentionally alter the resin, etc. I can do it.
- the polyvalent carboxylic acid anhydride used for acid addition in the acid addition method is not particularly limited.
- phthalic anhydride tetrahydrophthalic anhydride, succinic anhydride, trimellitic anhydride, pyromellitic anhydride
- examples include hexahydrophthalic anhydride, 3,3,4,4-benzophenonetetracarboxylic dianhydride, 3,3,4,4-biphenyltetracarboxylic dianhydride, ethylene glycol bisanhydro trimellitate, etc. These can be used alone or in combination of two or more. Trimellitic anhydride or pyromellitic anhydride is preferred.
- the aqueous dispersion (B) is a composition containing the copolymer polyester (A), an organic solvent and water, and is preferably a composition in which the copolymer polyester (A) is dispersed in an organic solvent and water.
- organic solvent those having hydrophilicity are preferable, alcohols such as methanol, ethanol, isopropanol and 2-ethylhexanol, ethers such as n-butyl cellosolve, t-butyl cellosolve, propylene glycol monomethyl ether and dipropylene glycol monomethyl ether, Examples include glycols such as ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, 2-methyl-1,3-propanediol, and 1,4-butanediol.
- alcohols such as methanol, ethanol, isopropanol and 2-ethylhexanol
- ethers such as n-butyl cellosolve, t-butyl cellosolve
- propylene glycol monomethyl ether and dipropylene glycol monomethyl ether
- examples include glycols such as ethylene glycol, diethylene glyco
- ketones such as cyclohexanone and isophorone having low hydrophilicity can be used as long as they do not separate when formed into an aqueous dispersion, and are arbitrary in consideration of solubility, evaporation rate (drying property) and the like. Selected and blended.
- ethers are preferable, and glycol ethers are more preferable.
- the copolyester (A) of the present invention can be neutralized by neutralizing the acid component in the copolyester (A) with a base component in order to improve the dispersibility in water.
- a base component which can be used, From alkali metal salts, such as lithium hydroxide, sodium hydroxide, potassium hydroxide, organic amines, such as ammonia, monoethanolamine, triethylamine, dimethylaminoethanol, diazabicycloundecene, etc. You can choose freely.
- the water-based paint is a composition containing the water dispersion (B) and further containing at least one selected from the group consisting of a crosslinking agent (C), a pigment (D) and an additive (E).
- a crosslinking agent C
- a pigment D
- an additive E
- it is a composition containing two or more selected from the group consisting of an aqueous dispersion (B), a crosslinking agent (C), a pigment (D) and an additive (E), and more preferably an aqueous dispersion (B ), A crosslinking agent (C), a pigment (D), and an additive (E).
- the crosslinking agent (C) that can be used with the copolymerized polyester (A) of the present invention is not particularly limited as long as it causes a crosslinking reaction to the copolymerized polyester (A).
- Preferable examples include isocyanate compounds, epoxy resins, amino resins (general names of alkyl etherified formaldehyde resins), phenol resins, and the like, and one or two or more of these can be arbitrarily selected and used.
- the isocyanate compound is not particularly limited, and there are aromatic, alicyclic and aliphatic polyisocyanate compounds, which may be either low molecular weight type or high molecular weight type.
- aromatic, alicyclic and aliphatic polyisocyanate compounds which may be either low molecular weight type or high molecular weight type.
- tetramethylene diisocyanate, hexamethylene diisocyanate, toluene diisocyanate, diphenylmethane diisocyanate, hydrogenated diphenylmethane diisocyanate, xylylene diisocyanate, hydrogenated xylylene diisocyanate, or a trimer of these isocyanate compounds and the aforementioned isocyanate compound and ethylene glycol Terminal isocyanate compounds obtained by reacting with active hydrogen compounds such as trimethylolpropane, propylene glycol, glycerin, sorbitol, ethylenediamine, monoethanolamine,
- the pot life of the water-based paint can be extended.
- the blocking agent of the blocked isocyanate compound include phenols such as phenol, thiophenol, methylthiophenol, cresol, xylenol, resorcinol, nitrophenol, and chlorophenol, oximes such as acetoxime, methylethyl ketoxime, and cyclohexanone oxime, methanol, Active methylene such as ethanol, propanol, butanol, t-butanol, t-pentanol, etc., lactams such as ⁇ -caprolactam, other aromatic amines, imides, acetylacetone, acetoacetate, malonic acid ethyl ester Examples thereof include compounds, mercaptans, imines, ureas and the like.
- the blocked isocyanate compound is obtained by reacting the isocyanate
- epoxy resin examples include glycidyl ether of bisphenol-A and oligomers thereof, orthophthalic acid diglycidyl ester, isophthalic acid diglycidyl ester, terephthalic acid diglycidyl ester, p-hydroxybenzoic acid diglycidyl ester, tetrahydrophthalic acid diglycidyl ester, Hexahydrophthalic acid diglycidyl ester, succinic acid diglycidyl ester, adipic acid diglycidyl ester, sebacic acid diglycidyl ester, ethylene glycol diglycidyl ester, propylene glycol diglycidyl ester, 1,4-butanediol diglycidyl ester, 1, 6-hexanediol diglycidyl ester, and polyalkylene glycol diglycidyl esters, trimellitic acid triglycidyl Ester, triglycidyl isocyanurate, 1,
- the amino resin is not particularly limited, but methylol obtained by reaction of amino components such as melamine, urea, benzoguanamine, acetoguanamine, steroguanamine, spiroguanamine, and dicyandiamide with aldehyde components such as formaldehyde, paraformaldehyde, acetaldehyde, and benzaldehyde.
- aldehyde components such as formaldehyde, paraformaldehyde, acetaldehyde, and benzaldehyde.
- An amino acid resin is mentioned.
- This amino resin also includes those obtained by etherifying the methylol group of this methylolated amino resin with an alcohol having 1 to 6 carbon atoms. These can be used alone or in combination of two or more.
- a resol type phenol resin can be used as the phenol resin.
- the resol type phenol resin include phenol, m-cresol, m-methylphenol, 3,5-xylenol, m-methoxyphenol, o-cresol, p-cresol, p-tert-butylphenol, p-ethylphenol, 2 , 3-xylenol, 2,5-xylenol bisphenol-A, bisphenol-F, and the like can be mentioned, and these can be used alone or in combination of two or more.
- the crosslinking agent (C) is preferably 1 part by mass or more, more preferably 5 parts by mass or more, and further preferably 10 parts by mass or more, relative to 100 parts by mass of the copolyester (A). preferable. Moreover, it is preferable that it is 50 mass parts or less, It is more preferable that it is 40 mass parts or less, It is further more preferable that it is 30 mass parts or less.
- the coating film obtained from the water-based paint is sufficiently crosslinked, and the hardness, fastness, and adhesion strength of the coating film are improved. Moreover, the flexibility of a coating film becomes favorable by setting it as the said upper limit or less.
- a catalyst that contributes to a crosslinking reaction between the copolymerized polyester (A) and the crosslinking agent (C) can be further used.
- organic acid sulfonic acid compounds such as p-toluenesulfonic acid, dodecylbenzenesulfonic acid, camphorsulfonic acid, phosphoric acid compounds, and neutralized amines thereof can be used as the acid catalyst.
- An amine compound can be used as the base catalyst.
- organic acid salts, halide salts, nitrates, sulfates, organic ligand compounds, and the like of various metals can be used. These catalysts can be used alone or in combination of two or more according to the curing behavior of the crosslinking agent (C).
- the copolyester (A) of the present invention can be used together with the pigment (D).
- the pigment (D) are not particularly limited, but titanium oxide, zinc oxide, zirconium oxide, calcium carbonate, barium sulfate, aluminum oxide, chromium oxide, chromate, kaolin clay, carbon black, iron oxide, talc, Mica, zinc phosphate, iron phosphate, aluminum phosphate, zinc phosphite, aluminum tripolyphosphate, calcium molybdate, aluminum molybdate, barium molybdate, vanadium oxide, strontium chromate, zinc chromate, calcium silicate, water-dispersed silica , Inorganic pigments such as fumed silica, and organics such as phthalocyanine blue, phthalocyanine green, carbazole dioxazine violet, anthrapyrimidine yellow, isoindolinone yellow, and induslen blue Mention may be made of the fee
- the pigment (D) is preferably 5 parts by mass or more, more preferably 50 parts by mass or more, and further preferably 100 parts by mass or more with respect to 100 parts by mass of the copolyester (A). . Moreover, it is preferable that it is 300 mass parts or less, It is more preferable that it is 250 mass parts or less, It is further more preferable that it is 200 mass parts or less.
- the additive (E) can be used as necessary. Although it does not specifically limit as a specific example of an additive (E), A base catalyst, such as an amine compound, a dispersing agent, an antifoamer, a leveling agent, a heat deterioration inhibitor, a ultraviolet absorber, a viscosity modifier, a wax etc. are mentioned. . One or more of these can be used.
- the additive (E) can be freely blended as long as it does not affect the physical properties of the coating film. Preferably, they are 0.1 mass part or more and 5 mass parts or less with respect to 100 mass parts of copolyester (A).
- the metal-coated plate of the present invention has a coating film obtained by applying the aqueous paint of the present invention to at least one surface of the metal plate and drying it.
- the coating method Roll coater coating, curtain flow coater coating, air spray coating, electrostatic spray coating, screen printing, etc. can be taken.
- the metal plate is not particularly limited, but for example, hot drawn steel plate, electrogalvanized steel plate, alloy plated steel plate, aluminum zinc alloy plated steel plate, aluminum plate, tin plated steel plate, stainless steel plate, copper plate, copper plated steel plate, tin-free Metal plates such as steel, nickel-plated steel plates, ultra-thin tin-plated steel plates, and chromed steel plates are preferred.
- the film thickness of the coating film is preferably 5 ⁇ m or more, more preferably 10 ⁇ m or more. Moreover, it is preferable that it is 50 micrometers or less, More preferably, it is 30 micrometers or less. By being in the said range, it can be used practically, without impairing the effect of this invention.
- KF-802, 804L and 806L manufactured by Showa Denko were used as the column.
- Monodispersed polystyrene was used for the molecular weight standard, the number average molecular weight was a standard polystyrene equivalent value, and the part corresponding to a molecular weight of less than 1000 was omitted.
- the glass transition temperature was measured using a differential scanning calorimeter (SII, DSC-200).
- a sample copolymerized polyester (A)
- a sample was placed in an aluminum-resined lid-type container, sealed, and cooled to ⁇ 50 ° C. using liquid nitrogen. Next, the temperature is raised to 150 ° C.
- the glass transition temperature (Tg, unit: ° C.) was defined as the temperature at the intersection with the tangent toward (the tangent indicating the maximum slope between the peak rising portion and the peak apex).
- Copolyester (a1) In a reaction vessel equipped with a stirrer, a condenser and a thermometer, 323 parts of terephthalic acid, 323 parts of isophthalic acid, 273 parts of BEPG, 329 parts of 1,5-pentanediol, and tetrabutyl orthotitanate as a catalyst An esterification reaction was carried out while charging 0.03 mol% with respect to all acid components, raising the temperature from 160 ° C. to 220 ° C. over 4 hours, and performing a dehydration step. Next, in the polycondensation reaction step, the pressure in the system was reduced to 5 mmHg over 20 minutes, and the temperature was further raised to 250 ° C.
- Copolyesters (a2) to (a18) were synthesized in accordance with the production examples of the copolymer polyester (a1), changing the types of raw materials and the mixing ratio. The results are shown in Table 1.
- the polyester aqueous dispersions (a1) to (a18) were allowed to stand at 5 ° C. and 25 ° C. for 3 months, and changes in the solution viscosity at each temperature were confirmed. The smaller the increase in viscosity, the better the storage stability.
- the solution viscosity was measured by filling a polyester dispersion into a glass container and measuring at 25 ° C. with a BL type viscometer manufactured by Toki Sangyo Co., Ltd. The rotation speed was 30 rpm.
- Example 1 Preparation of water-based paint (A1) Place 100 parts of titanium oxide (CR-93: manufactured by Ishihara Sangyo), 179 parts of ion-exchanged water, 10 parts of a dispersant (DISPERBYK (registered trademark) -190: BYK)), and 289 parts of glass beads in a glass container. For 6 hours to obtain a pigment paste (X).
- titanium oxide CR-93: manufactured by Ishihara Sangyo
- a dispersant DISPERBYK (registered trademark) -190: BYK
- Metal painted plate evaluation (preparation of test pieces) A 0.5 mm-thick Bonde (registered trademark) steel plate was coated with the water-based paint obtained in Examples and Comparative Examples so that the film thickness after drying was 12 ⁇ m, and dried at 250 ° C. for 50 seconds. The test piece was obtained.
- the metal-coated plate test piece was subjected to a 180 ° bending test with the coating surface facing outward at 25 ° C., and cracking of the coating was confirmed visually.
- 2T means that a coating film does not crack when two metal plates having the same thickness as the metal plate-coated plate test piece are sandwiched and bent. The smaller the number, the better the flexibility.
- copolymerized polyester, water dispersion, and water-based paint of the present invention are excellent in storage stability, hardness, processability, and water resistance, and are useful as a resin for water-based paints.
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Abstract
Description
すなわち、本発明は、以下の構成からなる。
本発明の共重合ポリエステル(A)を用いた水性塗料は優れた硬度、加工性および耐水密着性を発揮する。このため、コーティング後に屋外環境下に曝されるような水性塗料に好適であり、本発明の共重合ポリエステル(A)を用いて製造された製品は高硬度且つ、高屈曲性、高耐水性を有する塗膜が得られる。
水分散体(B)は、前記共重合ポリエステル(A)、有機溶媒および水を含有する組成物であり、好ましくは共重合ポリエステル(A)を有機溶媒および水に分散した組成物である。有機溶剤としては親水性を有するものが好ましく、メタノール、エタノール、イソプロパノール、2-エチルヘキサノールなどのアルコール類、n-ブチルセロソルブ、t-ブチルセロソルブ、プロピレングリコールモノメチルエーテル、ジプロピレングリコールモノメチルエーテルなどのエーテル類、エチレングリコール、ジエチレングリコール、トリエチレングリコール、プロピレングリコール、ジプロピレングリコール、トリプロピレングリコール、2-メチル-1,3-プロパンジオール、1,4-ブタンジオール等のグリコール類があげられる。また、水分散体としたときに分離しないものであれば、親水性の低いシクロヘキサノン、イソホロンなどのケトン類なども使用することができ、溶解性、蒸発速度(乾燥性)などを考慮して任意に選択、配合される。なかでもエーテル類が好ましく、グリコールエーテル系がより好ましい。
水性塗料は、前記水分散体(B)を含み、さらに架橋剤(C)、顔料(D)および添加剤(E)からなる群より選ばれる1種以上を含有する組成物である。好ましくは水分散体(B)、架橋剤(C)、顔料(D)および添加剤(E)からなる群より選ばれる2種以上を含有する組成物であり、より好ましくは水分散体(B)、架橋剤(C)、顔料(D)および添加剤(E)を含有する組成物である。
本発明の共重合ポリエステル(A)とともに使用することができる架橋剤(C)は、共重合ポリエステル(A)に対して架橋反応を生じるものであれば特に限定されない。好ましい例としてイソシアネート化合物、エポキシ樹脂、アミノ樹脂(アルキルエーテル化ホルムアルデヒド樹脂の一般名称)、フェノール樹脂などを挙げることができ、これらより1種、または2種以上を任意に選択して使用できる。
本発明の共重合ポリエステル(A)は、顔料(D)とともに使用することができる。顔料(D)の具体例としては特に限定されないが、酸化チタン、酸化亜鉛、酸化ジルコニウム、炭酸カルシウム、硫酸バリウム、酸化アルミニウム、酸化クロム、クロム酸塩、カオリングレー、カーボンブラック、酸化鉄、タルク、マイカ、リン酸亜鉛、リン酸鉄、リン酸アルミニウム、亜リン酸亜鉛、トリポリリン酸アルミニウム、モリブデン酸カルシウム、モリブデン酸アルミニウム、モリブデン酸バリウム、酸化バナジウム、ストロンチウムクロメート、ジンククロメート、カルシウムシリケート、水分散シリカ、ヒュームドシリカなどの無機顔料やフタロシアニンブルー、フタロシアニングリーン、カルバゾールジオキサジンバイオレット、アントラピリミジンイエロー、イソインドリノンイエロー、インダスレンブルーなどの有機顔料を挙げることができる。これらを1種または2種以上添加することで、着色、防食、耐久性の向上、といった効果が期待できる。
本発明の共重合ポリエステル(A)は添加剤(E)を必要に応じて使用することができる。添加剤(E)の具体例としては特に限定されないが、アミン化合物などの塩基触媒、分散剤、消泡剤、レベリング剤、熱劣化防止剤、紫外線吸収剤、粘度調整剤、ワックスなどが挙げられる。これらを1種または2種以上使用することができる。添加剤(E)は塗膜物性に影響を与えない程度であれば、自由に配合することが出来る。好ましくは、共重合ポリエステル(A)100質量部に対して、0.1質量部以上5質量部以下である。
本発明の金属塗装板は、金属板の少なくとも片面に、本発明の水性塗料を塗布し、乾燥することにより得られる塗膜を有するものである。塗装方法について、特に限定はされないが、ロールコーター塗装、カーテンフローコーター塗装、エアースプレー塗装、静電スプレー塗装、スクリーン印刷等を取ることができる。
また、金属板としては、特に限定されないが、例えば熱延伸鋼板、電気亜鉛メッキ鋼板、合金メッキ鋼板、アルミニウム亜鉛合金メッキ鋼板、アルミニウム板、錫メッキ鋼板、ステンレス鋼板、銅板、銅メッキ鋼板、ティンフリースチール、ニッケルメッキ鋼板、極薄錫メッキ鋼板、クロム処理鋼板などの金属板が好ましい。
400MHzの1H-核磁気共鳴スペクトル装置(以下、NMRと略記することがある)を用い、共重合ポリエステル(A)を構成する多価カルボン酸成分、多価アルコール成分のモル比定量を行った。溶媒には重クロロホルムを使用した。なお、酸後付加により共重合ポリエステルの酸価を上げた場合には、酸後付加に用いた酸成分以外の酸成分の合計を100モル%として、各成分のモル比を算出した。
試料(共重合ポリエステル(A))4mgを、4mLのテトラヒドロフランに溶解した後、孔径0.2μmのポリ四フッ化エチレン製メンブランフィルターでろ過した。これを試料溶液とし、ゲル浸透クロマトグラフィー(GPC)で分析を行った。装置はTOSOH HLC-8220、検出器は示差屈折率検出器、移動相はテトラヒドロフランを用い、流速1mL/分、カラム温度40℃で測定した。カラムは昭和電工製KF-802、804L、806Lを用いた。分子量標準には単分散ポリスチレンを使用し、数平均分子量は標準ポリスチレン換算値とし、分子量1000未満に相当する部分を省いて算出した。
示差走査型熱量計(SII社、DSC-200)を用いて測定した。試料(共重合ポリエステル(A))5mgをアルミニウム抑え蓋型容器に入れ密封し、液体窒素を用いて-50℃まで冷却した。次いで150℃まで20℃/分の昇温速度にて昇温させ、昇温過程にて得られる吸熱曲線において、吸熱ピークが出る前(ガラス転移温度以下)のベースラインの延長線と、吸熱ピークに向かう接線(ピークの立ち上がり部分からピークの頂点までの間での最大傾斜を示す接線)との交点の温度をもって、ガラス転移温度(Tg、単位:℃)とした。
試料(共重合ポリエステル(A))0.2gを精秤しクロロホルム40mlに溶解した。次いで、0.01Nの水酸化カリウムのエタノール溶液で滴定を行った。指示薬にはフェノールフタレインを用いた。試料に対して、水酸化カリウム当量を求め、測定値を試料1トンあたりの当量に換算し、単位は当量/トンとした。
試料(共重合ポリエステル(A))0.1±0.005gおよびフェノール/テトラクロロエタン(重量比6/4)の混合溶媒25ccに溶かし、ウベローデ粘度管を用いて30℃で測定した。
攪拌機、コンデンサー、温度計を具備した反応容器にテレフタル酸323部、イソフタル酸323部、BEPG273部、1,5-ペンタンジオール329部、触媒としてオルトチタン酸テトラブチルを全酸成分に対して0.03モル%仕込み、160℃から220℃まで4時間かけて昇温、脱水工程を経ながらエステル化反応を行った。次に重縮合反応工程は、系内を20分かけて5mmHgまで減圧し、さらに250℃まで昇温を進めた。次いで、0.3mmHg以下まで減圧し、60分間の重縮合反応を行った。その後、220℃まで冷却し、無水トリメリット酸30部を投入し、30分間反応させた。これを取り出した。得られた共重合ポリエステル(a1)はNMRによる組成分析の結果、モル比でテレフタル酸/イソフタル酸/BEPG/1,5-ペンタンジオール=50/50/30/70[モル比]であった。また、数平均分子量は6000、ガラス転移温度は13℃、酸価は300当量/トンであった。結果を表1に記載した。
共重合ポリエステル(a1)の製造例に準じ、原料の種類と配合比率を変更して、共重合ポリエステル(a2)~(a18)を合成した。結果を表1に記載した。
上記共重合ポリエステル(a1)500部をノルマルブチルセロソルブ188部に溶解し、ジメチルアミノエタノール13部を添加後、イオン交換水549部を添加して、水分散体(a1)を得た。結果を表1に記載した。
水分散体(a1)の製造例に準じ、原料の種類と配合比率を変更して、本発明の水分散体(a2)~(a18)を製造した。結果を表1に記載した。
ポリエステル水分散体(a1)~(a18)を5℃、および25℃下に3か月間静置し、各温度での溶液粘度の変化を確認した。粘度の上昇が小さいほど保存安定性は良好である。溶液粘度の測定は、ポリエステル分散体をガラス容器に充填し、25℃下で、東機産業社製BL型粘度計で測定した。回転数は30rpmとした。
評価基準
溶液粘度の変化幅=|静置後の溶液粘度/静置前の溶液粘度|
○:溶液粘度の変化幅≦100%
△:溶液粘度の変化幅>100%
×:溶液が固化した。
酸化チタン(CR-93:石原産業製)100部、イオン交換水 179部、分散剤(DISPERBYK(登録商標)-190:BYK社)10部、ガラスビーズ289部をガラス容器に入れ、しんとう機にて6時間分散し、顔料ペースト(X)を得た。次いで、水分散体(a1)100部、メラミン樹脂(サイメル(登録商標)327:オルネクス社)11部、顔料ペースト(X)140部、レベリング剤(BYK(登録商標)-381:BYK社)0.3部を容器に配合し、撹拌することで水性塗料(A1)を得た。
水性塗料(A1)と同様の方法にて、本発明の実施例または比較例である水性塗料(A2)~(A18)を得た。
(試験片の作成)
0.5mm厚のボンデ(登録商標)鋼板に前記実施例及び比較例で得られた水性塗料を乾燥後の膜厚が12μmとなる様に塗装し、250℃で50秒間乾燥し、金属塗装板の試験片を得た。
前記金属塗装板試験片の塗装面に対し鉛筆の芯を45度の角度で当て、前方向に滑らせた。鉛筆の芯の堅さは硬い方から、HB、B、2B、3B、4Bを用い、傷がつかない最高硬度を評価した。硬度が高いほど塗膜の硬度は高く、傷がつきにくい。
評価基準
○:B以上
△:2B~3B
×:4B以下
前記金属塗装板試験片を25℃下で塗膜面を外側に180°折り曲げ試験を行い、目視にて、塗膜の割れを確認した。例えば、2Tとは、金属板塗装板試験片と同じ厚さの金属板を2枚挟んで折り曲げた際に塗膜の割れが発生しないことである。数字が小さいほど屈曲性が良好である。
評価基準
○:1T以上
△:2~3T
×:4T以下
前記金属塗装板試験片の端部をテープで保護し、95℃温水中に24時間浸漬させた。浸漬後、取り出した金属塗装板試験片上の塗膜に、素地に達するように1mm間隔の碁盤目状にクロスカットを入れ、大きさ1mm×1mmの碁盤目を100個作った。その表面に粘着セロハンテープを貼着し、20℃においてそのテープを急激に剥離した後の碁盤目塗膜の残存数を調べた。
評価基準
◎:塗膜残存マス数80個以上
○:塗膜残存マス数30~79個
△:塗膜残存マス数78~39個
×:塗膜残存マス数38個以下
Claims (7)
- 多価カルボン酸成分と多価アルコール成分を共重合成分とする共重合ポリエステルであって、全多価カルボン酸成分を100モル%としたときに、芳香族多価カルボン酸成分および脂環族多価カルボン酸成分の合計が100モル%であり、かつ全多価アルコール成分を100モル%としたときに、二つの水酸基が炭素数5以下のアルキレン基で結合しており、前記アルキレン基の側鎖として炭素数2以上のアルキル基を有するグリコール成分(a)を10~40モル%含み、ガラス転移温度が-10~20℃であり、酸価が150~400当量/トンである共重合ポリエステル(A)。
- 前記一般式(1)が2,2-ブチルエチルプロパンジオールである請求項1または2に記載の共重合ポリエステル(A)。
- 数平均分子量が5000~13000の範囲である請求項1~3のいずれかに記載の共重合ポリエステル(A)。
- 請求項1~4のいずれかに記載の共重合ポリエステル(A)、有機溶媒および水を含有する水分散体(B)。
- 請求項5に記載の水分散体(B)を含み、さらに架橋剤(C)、顔料(D)および添加剤(E)からなる群より選ばれる1種以上を含有する水性塗料。
- 請求項6に記載の水性塗料が塗装された金属塗装板。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020207030982A KR20210007964A (ko) | 2018-05-07 | 2019-04-10 | 공중합 폴리에스테르, 수분산체 및 이를 이용한 수성 도료 |
CN201980013336.2A CN111971324B (zh) | 2018-05-07 | 2019-04-10 | 共聚聚酯、水分散体和使用其的水性涂料 |
CA3088724A CA3088724A1 (en) | 2018-05-07 | 2019-04-10 | Copolymerized polyester, water dispersion and aqueous paint using the same |
EP19800772.6A EP3744749A4 (en) | 2018-05-07 | 2019-04-10 | COPOLYESTER, WATER DISPERSION AND WATER PAINT WITH IT |
US16/957,186 US11312880B2 (en) | 2018-05-07 | 2019-04-10 | Copolymerized polyester, water dispersion and aqueous paint using the same |
MX2020006752A MX2020006752A (es) | 2018-05-07 | 2019-04-10 | Poliester copolimerizado, dispersion acuosa y pintura acuosa que usa el mismo. |
JP2020518204A JP7232423B2 (ja) | 2018-05-07 | 2019-04-10 | 共重合ポリエステル、水分散体およびこれを用いた水性塗料 |
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EP (1) | EP3744749A4 (ja) |
JP (1) | JP7232423B2 (ja) |
KR (1) | KR20210007964A (ja) |
CN (1) | CN111971324B (ja) |
CA (1) | CA3088724A1 (ja) |
MX (1) | MX2020006752A (ja) |
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WO2020149082A1 (ja) * | 2019-01-17 | 2020-07-23 | 東洋紡株式会社 | 共重合ポリエステルおよび水分散体 |
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KR20210114396A (ko) * | 2019-01-17 | 2021-09-23 | 도요보 가부시키가이샤 | 공중합 폴리에스테르 및 수분산체 |
-
2019
- 2019-04-10 CA CA3088724A patent/CA3088724A1/en active Pending
- 2019-04-10 CN CN201980013336.2A patent/CN111971324B/zh active Active
- 2019-04-10 MX MX2020006752A patent/MX2020006752A/es unknown
- 2019-04-10 KR KR1020207030982A patent/KR20210007964A/ko not_active Application Discontinuation
- 2019-04-10 EP EP19800772.6A patent/EP3744749A4/en active Pending
- 2019-04-10 US US16/957,186 patent/US11312880B2/en active Active
- 2019-04-10 WO PCT/JP2019/015558 patent/WO2019216093A1/ja unknown
- 2019-04-10 JP JP2020518204A patent/JP7232423B2/ja active Active
- 2019-04-29 TW TW108114851A patent/TW201946946A/zh unknown
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US5880223A (en) * | 1997-12-19 | 1999-03-09 | Morton International, Inc. | Non-blooming polyester coating powder |
JP2005506420A (ja) * | 2001-10-22 | 2005-03-03 | エスケー ケミカルズ カンパニー リミテッド | 溶剤型コーティング用共重合ポリエステル樹脂およびそれを含むコーティング組成物 |
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WO2020149082A1 (ja) * | 2019-01-17 | 2020-07-23 | 東洋紡株式会社 | 共重合ポリエステルおよび水分散体 |
CN113227198A (zh) * | 2019-01-17 | 2021-08-06 | 东洋纺株式会社 | 共聚聚酯及其水分散体 |
JPWO2020149082A1 (ja) * | 2019-01-17 | 2021-12-02 | 東洋紡株式会社 | 共重合ポリエステルおよび水分散体 |
JP7415282B2 (ja) | 2019-01-17 | 2024-01-17 | 東洋紡エムシー株式会社 | 共重合ポリエステルおよび水分散体 |
CN113227198B (zh) * | 2019-01-17 | 2024-01-23 | 东洋纺Mc株式会社 | 共聚聚酯及其水分散体 |
Also Published As
Publication number | Publication date |
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US11312880B2 (en) | 2022-04-26 |
TW201946946A (zh) | 2019-12-16 |
JP7232423B2 (ja) | 2023-03-03 |
MX2020006752A (es) | 2020-08-24 |
CN111971324A (zh) | 2020-11-20 |
US20200317954A1 (en) | 2020-10-08 |
CN111971324B (zh) | 2022-08-16 |
EP3744749A1 (en) | 2020-12-02 |
EP3744749A4 (en) | 2021-11-10 |
JPWO2019216093A1 (ja) | 2021-06-10 |
CA3088724A1 (en) | 2019-11-14 |
KR20210007964A (ko) | 2021-01-20 |
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