CN103476883B - Water system coating composition - Google Patents

Water system coating composition Download PDF

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Publication number
CN103476883B
CN103476883B CN201280016873.0A CN201280016873A CN103476883B CN 103476883 B CN103476883 B CN 103476883B CN 201280016873 A CN201280016873 A CN 201280016873A CN 103476883 B CN103476883 B CN 103476883B
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Prior art keywords
coating composition
water system
organic solvent
glycol
hydroxyl
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CN103476883A (en
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岩泽昭
藤本武司
河合康宽
滨中政尔
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NIPPON TORYO CO Ltd
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NIPPON TORYO CO Ltd
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Priority claimed from PCT/JP2012/058550 external-priority patent/WO2012133752A1/en
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Abstract

The present invention provides a kind of water system coating composition, it is characterized in that, containing coloring agent, water, wetting agent, amines, the organic solvent of hydroxyl and the carbamate resins with Merlon base, utilize this water system coating composition, can easily control the gloss of the coated film being coated on coated article, storage-stable is good, excellent to the wettability of coated article, will not cause spray nozzle clogging and spray excellent in stability continuously.

Description

Water system coating composition
Technical field
The present invention relates to water system coating composition, relate to easily to control the light of the coated film being coated on coated article Pool, storage-stable be good, water system coating composition to the wettability ejection excellent in stability excellent, continuous of coated article.
Background technology
In the past, in the coating composition being made up of pigment, adhesive resin, pigment wetting agent, solvent and water, it is proposed that The coating composition of the various solvent of multiple use.
In the case of using conventional coating composition to make painting object by ink-jet, unstable injection occurs, Obtain the painting object of the closely sealed difference to coated article, even if it addition, use such coating composition to make painting object, the most sometimes The gloss difference of film or the display of color are the most abundant.
As produce above-mentioned gloss reduce reason, generally, due to the pigment in coating composition, solvent, resin and The selection of wetting agent and make the compatibility poor of coating composition, become the reason causing gloss to reduce.In order to prevent this phenomenon, Use the method (referring for example to patent documentation 1) adding gloss improvers.
It addition, repel or the reason of bleeding as producing, it is generally known that the regulation poor with the interfacial tension of coated article is not filled Point, in order to solve this problem, use the method adding surface conditioner.
On the other hand, in patent documentation 2, repel and the method for bleeding as improving, disclose interpolation acid-organosilicon crylic acid Resinoid method, but without providing water system compositions.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Application Publication 2007-510017 publication
Patent documentation 2: Japanese Unexamined Patent Publication 10-251573 publication
Summary of the invention
Invent problem to be solved
It is an object of the invention to solve problem as above, it is provided that a kind of water system coating composition, it can control The gloss of coated film, the storage-stable of coating composition is good, excellent to the wettability of coated article, there is not repulsion and oozes Color, and spray nozzle clogging will not be caused, spray excellent in stability continuously.
For the method solving problem
Pass through the present invention, it is provided that a kind of water system coating composition, it is characterised in that containing coloring agent, water, wetting agent, amine Compound, the organic solvent of hydroxyl and there is the carbamate resins of Merlon base.
Invention effect
By means of the invention it is possible to provide a kind of water system coating composition, it can easily control to be coated on coated article The gloss of coated film, storage-stable is good, excellent to the wettability of coated article, will not cause spray nozzle clogging and spray continuously Excellent in stability.
Detailed description of the invention
Hereinafter, embodiments of the present invention are described in detail.
The water system coating composition of the present invention is characterised by, containing coloring agent, water, wetting agent, amines, hydroxyl Organic solvent and there is the carbamate resins of Merlon base.According to the present invention, obtain storage-stable good, to quilt The wettability of coat is excellent, can easily control the gloss of coated film that is coated on coated article and continuously ejection stability excellent Good water system coating composition.In the present invention, it is coated with in the water system making gloss reduce owing to adding wetting agent or adhesive resin In cloth compositions, add the organic solvent of hydroxyl and amines, the film that it is possible to control to be coated on coated article Gloss.
Coating composition in the present invention is the water system coating composition being added with water.As water, it is possible to use ion is handed over Change the pure water such as water, distilled water or ultra-pure water.It addition, in the case of long-term preservation water system coating composition, in order to prevent mycete Or the generation of antibacterial, it is possible to use by the water after the sterilizings such as ultraviolet irradiation.Furthermore it is also possible to according to application during coating Condition dilute with water water system coating composition.
The coloring agent used in the water system coating composition of the present invention is not particularly limited, it is possible to use common coating group The pigment used in compound.Such as, as organic pigment, can enumerate:
Pigment Yellow 12,13,14,17,20,24,31,42,53,55,74,83,86,93,109,110,117,120,125, 128、129、137、138、139、147、148、150、151、152、153、154、155、166、168、180、181、184、185、 213、
Pigment orange 16,36,38,43,51,55,59,61,64,65,71,
Pigment Red 9,48,49,52,53,57,97,101,122,123,149,168,177,180,192,202,206, 215、216、217、220、223、224、226、227、228、238、240、244、254、
Pigment violet 19,23,29,30,32,37,40,50,
Pigment blue 15,15:1,15:3,15:4,15:6,22,30,60,64,80,
Pigment Green 7,36,
Bistre 23,25,26,
Pigment black 1,7,26,27 and 28 etc..
It addition, as inorganic pigment, can enumerate: titanium oxide, ferrum oxide, ultramarine, chrome yellow, zinc sulfide, cobalt blue, barium sulfate And calcium carbonate etc..
The use level of pigment can arbitrarily determine according to the kind etc. of pigment used, preferably water system coating composition 0.5~10 mass %, more preferably 1~5 mass %.
As the wetting agent used in the water system coating composition in the present invention, it is not particularly limited, uses common painting The wetting agent used in cloth compositions, it is however generally that, use and there is the effect making the interfacial tension between solid and liquid reduce Anionic based surfactants, cationic based surfactants or nonionic class surfactant.In water system coating composition Whole organic solvent amounts be more than 35 mass % in the case of, wetting agent is preferably nonionic class surfactant.As non-from Subclass surfactant, can enumerate such as: polyoxyethylene tridecyl ether, polyoxyethylene lauryl ether, polyoxy alkylene ten Trialkyl ether, polyoxyethylene isodecyl ether, polyoxyethylene lauryl ether, polyoxy alkylene lauryl ether, polyoxyethylene alkyl ether, poly- Oxygen ethylene oleyl ether and polyoxyethylene styrene phenyl ether etc..The use level of wetting agent can be appointed according to the kind used etc. Meaning determines, preferably 0.01~5 mass % of water system coating composition, more preferably 0.5~3 mass %.
As having the carbamate resins of Merlon base, it is not particularly limited, preferably makes polycarbonate polyol The carbamate resins that alcohol, polyisocyanate and chain extender react and obtain, more preferably mean diameter 30nm~300nm Urethane dispersion or urethane emulsions.By using the carbamate of mean diameter 30nm~300nm to disperse Body or urethane emulsions, it is possible to the water system coating composition of the storage-stable that preparation display is good, and can be formed Show the coated film of excellent scrub resistance.
Polycarbonate polyol is not particularly limited, and can enumerate such as: 1,6-hexanediol polycarbonate polyol, Isosorbide-5-Nitrae- Butanediol polycarbonate polyol and poly-1,4-cyclohexanedimethyleterephthalate carbonate diol etc..
It addition, be possible not only to add the carbamate resins with Merlon base, it is also possible to add common coating Use in compositions making polyisocyanate, polyhydric alcohol and chain extender reaction and the carbamate resins that obtains.Gather by making Isocyanates, polyhydric alcohol and chain extender react and obtain block structure, make carbamate resins dispersion stabilization in water Improve.
Polisocyanate component is the compound in its compound with at least 2 NCOs, can enumerate example As: include toluene di-isocyanate(TDI), XDI, methyl diphenylene diisocyanate, naphthalene diisocyanate, 1,3- Double (isocyanatomethyl) hexamethylene, tetramethylxylene diisocyanate, hexamethylene diisocyanate, isophorone two The polyisocyanate compounds of isocyanates, dicyclohexyl methyl hydride diisocyanate and norbornene alkyl diisocyanate etc..This In a little polisocyanate component, preferably XDI, 1,3-double (isocyanatomethyl) hexamethylene, six methylenes Group diisocyanate, isophorone diisocyanate, 4,4 '-di-2-ethylhexylphosphine oxide (cyclohexyl isocyanate) or norbornane two isocyanide Acid esters.These polisocyanate component can be used alone one, or can also be applied in combination two or more.
Polyol component is the compound in its compound with at least 2 hydroxyls, can enumerate such as: polyester polyols Alcohol, polyether polyol and acrylic polyol etc..
As PEPA, it is not particularly limited, can enumerate such as: 10PE27, polyadipate second Glycol propylene glycol ester, poly adipate succinic acid ester, polyadipate hexanediol ester, polydiethylene glycol adipate, poly-terephthaldehyde Acid glycol ester, polyethylene glycol isophthalate, poly-M-phthalic acid hexanediol ester, polyethylene glycol succinate, polybutadiene Acid butanediol ester, polyethylene glycol sebacate, polydiethylene glycol sebacate, poly-'epsilon '-hexanolactam glycol and poly-(adipic acid 3- Methyl isophthalic acid, 5-pentadiol ester) etc..
As polyether polyol, it is not particularly limited, can enumerate such as: polyoxytetramethylene glycol, polypropylene oxide Glycol, Polyoxyethylene glycol and polyethylene glycol oxide-propylene oxide glycol etc..
As acrylic polyol, be not particularly limited, can enumerate such as: with (methyl) acrylic acid 2-hydroxy methacrylate, The acrylic compounds such as (methyl) acrylic acid 3-hydroxy propyl ester, (methyl) acrylic acid 4-hydroxybutyl and these 6-caprolactone addition products Monomer is as the acrylic polyol of neccessary composition.
These polyol components can be used alone one, additionally can also be applied in combination two or more.
As chain extender, the polyhydric alcohol of such as low-molecular-weight and the polyamine of low-molecular-weight can be enumerated.As low point Son amount polyhydric alcohol, can enumerate such as: ethylene glycol, diethylene glycol, BDO, 1,6-hexanediol, 3-methyl isophthalic acid, 5-penta Glycol, neopentyl glycol, trimethylolpropane, tetramethylolmethane, 1,4 cyclohexane dimethanol, dimethylolpropionic acid and dihydroxymethyl The dimethylolalkanoic acids classes etc. such as propanoic acid.As the polyamine of low-molecular-weight, can enumerate such as: ethylenediamine, propane diamine, fourth two Amine, hexamethylene diamine, hydrazine, piperazine, isophorone diamine, norbornane diamidogen, diaminodiphenyl-methane, diaminourea cyclohexyl first Alkane, toluenediamine, dimethylphenylene diamine, diethylenetriamines, trien, tetren and iminobispropylamine Deng.These chain extenders can be used alone one, additionally can also be applied in combination two or more.
It addition, do not contain only the carbamate resins with Merlon base, it is also possible to containing acrylic resin.Pass through Containing acrylic resin, the solvent resistance of film improves.As acrylic resin, preferably comprising glass transition temperature Tg is 60 More than DEG C, mean diameter be acrylic acid dispersion or the acrylic emulsion of 50nm~200nm.By making glass transition temperature Tg It is more than 60 DEG C, obtains excellent scrub resistance and alcohol resistance.It addition, be 50nm~200nm by making mean diameter, it is possible to Prepare the water system coating composition that storage-stable is good.
As the monomer component of composition acrylic resin, can enumerate: (methyl) acrylic acid methyl ester., (methyl) acrylic acid second Ester, (methyl) n-propyl, (methyl) isopropyl acrylate, (methyl) n-butyl acrylate, (methyl) i-butyl Ester, (methyl) amyl acrylate, (methyl) 2-EHA, (methyl) decyl acrylate, (methyl) acrylic acid 12 Alkyl ester, (methyl) stearyl acrylate ester, (methyl) acrylic acid α-chloroethene ester, (methyl) cyclohexyl acrylate, (methyl) acrylic acid Phenyl ester, (methyl) methoxyethyl acrylate, (methyl) ethoxyethyl acrylate, (methyl) methoxypropyl ester, (first Base) ethioxy propyl ester, styrene, methyl styrene, chlorostyrene, methoxy styrene, (methyl) acrylic acid, Fructus Crotonis Acid, itaconic acid, itaconic acid half ester, maleic acid, acid half ester, (methyl) acrylic acid 2-hydroxy methacrylate, (methyl) acrylic acid 2 (3)-hydroxy propyl ester, acrylic acid 4-hydroxybutyl, 1-propenol-3, list (methyl) acrylate of polyhydric alcohol, (methyl) acrylamide, Maleic amide, (methyl) acrylic acid 2-amino ethyl ester, (methyl) dimethylaminoethyl acrylate, (methyl) acrylic acid 3-aminopropan Ester, (methyl) acrylic acid 2-butylaminoethyl, vinylpyridine, (methyl) glycidyl acrylate, allyl glycidyl are sweet Oleyl ether, have the epoxide of more than 2 glycidyls, N hydroxymethyl acrylamide, vinyl acetate, vinyl chloride, Ethylene, butadiene, acrylonitrile and dialkyl fumarate etc..Wherein, preferably styrene, methyl methacrylate or bag Containing (methyl) acrylic acid acrylic resin.
In the water system coating composition of the present invention, the organic solvent of hydroxyl can be categorized as the hydroxyl in (A) 1 molecule Number is organic solvent and the organic solvent that hydroxyl value is more than 2 in (B) 1 molecule of 1.
As the organic solvent of the hydroxyl that hydroxyl value is 1 in (A) 1 molecule, can enumerate:
Ethylene glycol methyl ether, glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol butyl ether, ethylene glycol amyl ether, second two Alcohol hexyl ether, 1,2-ethanediol cyclohexyl ether, ethylene glycol phenyl ether, ethylene glycol benzyl ether, ethylene glycol isobutyl ether, the ethylene glycol tert-butyl group Ether,
Diethylene, diethylene glycol ethyl ether, diethylene glycol propyl ether, buiyl diglycol, diethylene glycol Amyl ether, diethylene glycol hexyl ether, diethylene glycol cyclohexyl ether, diethylene glycol phenyl ether, diethylene glycol benzylic ether, diethylene glycol Single-butyl ether, diethylene glycol isobutyl ether,
Triethylene glycol methyl ether, triethylene glycol ethylether, triethylene glycol propyl ether, triethylene glycol butyl ether, triethylene glycol Amyl ether, triethylene glycol hexyl ether, triethylene glycol cyclohexyl ether, triethylene glycol phenyl ether, triethylene glycol benzylic ether and three second two The gylcol ethers such as alcohol single-butyl ether;And
Methyl proxitol, propylene glycol ethyl ether, propylene glycol propyl ether, propylene glycol butyl ether, propylene glycol amyl ether, the third two Alcohol hexyl ether, propylene glycol cyclohexyl ether,
Dipropylene glycol methyl ether, dipropylene glycol ethyl ether, dipropylene glycol propyl ether, dipropylene glycol butyl ether, dipropylene glycol Amyl ether, dipropylene glycol hexyl ether, dipropylene glycol cyclohexyl ether,
Tripropylene glycol methyl ether, tripropylene glycol ethylether, tripropylene glycol propyl ether, tripropylene glycol propyl ether, tripropylene glycol The propylene glycol ethers such as amyl ether, tripropylene glycol hexyl ether and tripropylene glycol cyclohexyl ether;Deng.
Wherein, preferably ethylene glycol monobutyl ether, ethylene glycol isobutyl ether, ethylene glycol tertbutyl ether, diethylene glycol mono butyl base Ether, diethylene glycol isobutyl ether and triethylene glycol monobutyl base ether.
As the organic solvent of the hydroxyl that hydroxyl value is more than 2 in (B) 1 molecule, can enumerate: ethylene glycol, two Ethylene glycol, triethylene glycol, 1,2-propylene glycol, 2-methyl-1,3-propanediol, 1,3-propylene glycol, 1,2-butanediol, 1,3-fourth two Alcohol, 1,4-butanediol, 3-methyl isophthalic acid, 3-butanediol, neopentyl glycol, 1,2-pentanediol, 1,5-pentanediol, 3-methyl isophthalic acid, 5-penta Glycol, 1,2-hexanediol, 1,6-HD, ethohexadiol, 1,4-butanediol, 1,4 cyclohexane dimethanol, glycerol and three hydroxyls Methylpropane.Wherein, preferably ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, 3-methyl isophthalic acid, 3-butanediol, 2-methyl-1,3-propanediol and glycerol.
In the organic solvent of hydroxyl, from the viewpoint of ejection stability continuously and glossiness, preferably (A) 1 molecule In the organic solvent that hydroxyl value is 1 and (B) 1 molecule in the ratio of the organic solvent that hydroxyl value is more than 2 be A:B= 100:50~100:170, more preferably 100:50~100:150, even more preferably 100:75~100:150.A is set to 100 Time, if B is less than 50, then moisture retention is deteriorated, and causes spray nozzle clogging when ink-jet application or atomized spray painting etc. sometimes, so that Ejection stability reduces continuously, on the other hand, when B ultrasonic crosses 170, there is the tendency that the gloss of dry coating declines.
In the water system coating composition of the present invention, from the viewpoint of ejection stability continuously and storage-stable, preferably All organic solvent amount is 20 mass %~55 mass %, more preferably 30 mass %~50 mass %.All organic solvent amount is less than During 20 mass %, the dry quickening of water system coating composition, the stifled of nozzle mostly can be caused when ink-jet application or atomized spray painting etc. Plug, so that ejection stability reduces continuously.On the other hand, during more than 55 mass %, cause the poly-of pigment dispersion and resin Collection, has the tendency that storage-stable is deteriorated.In the water system coating composition of the present invention, even if being 55 matter in amount of solvent The most there is not ignition point during amount %, therefore, safety is high compared with dicyandiamide solution.
As the amines used in the water system coating composition of the present invention, can enumerate: primary amine, secondary amine and uncle Amine.
As primary amine, can enumerate such as: methylamine, ethamine, propylamine, 2-aminopropane., butylamine, tert-butylamine, hexylamine, benzylamine, second Hydramine, isopropanolamine, butanolamine, hexanol amine, 1,2-propanediamine, 1,3-propanediamine, 1,4-butane diamine, 1,6-hexane two Amine, pyrrolidine and morpholine etc..
As secondary amine, can enumerate such as: dimethylamine, diethylamine, di-n-propylamine, diisopropylamine, dibutyl amine, diethanolamine, Diisopropanolamine (DIPA), N-methylethanolamine, N-ehtylethanolamine, N-butylethanolamine, N-butyl isopropanolamine, N-tert-butyl group isopropyl Hydramine, N, N-diethyl ethylenediamine, N, N-dimethyl-1,3-diaminopropanes, N, N-diethyl-1,3-diaminopropanes and Piperazine etc..
As tertiary amine, can enumerate such as: trimethylamine, triethylamine, tripropyl amine (TPA), Tris(isopropylamine)., tri-n-butylamine, N-methyl diethyl Amine, N, N-dimethyl propylamine, triethanolamine, N methyldiethanol amine, N-ethyldiethanolamine, N butyl diethanol amine, uncle N- Butyl diethanolamine, N, N-dimethylethanolamine, N, N-diethyl ethylene diamine, N, N-dibutylethanolamine, N, N-di-t-butyl Ethanolamine, triisopropanolamine, N-methyl diisopropanolamine (DIPA), N-ethyl diisopropanolamine (DIPA), N-butyl diisopropanolamine (DIPA), the N-tert-butyl group Diisopropanolamine (DIPA), N, N-dimethylisopro panolamine, N, N-diethyl isopropanolamine, N, N-dibutylisopropanolamine and N, N-bis- Tert-butyl group isopropanolamine etc..
Certainly, the invention is not restricted to these amines.These amines can be applied in combination two or more.
In the present invention, in above-mentioned amines, particularly preferably use the amines or water miscible tertiary-aminated of straight chain Compound.Specifically, triethylamine, triethanolamine, N methyldiethanol amine, N-ethyldiethanolamine, N, N-are particularly preferably used Dimethylethanolamine or N, N-diethyl ethylene diamine etc..
About the boiling spread of amines used in the present invention, from the glossiness of film and spray stability continuously From the viewpoint of, using the minimum boiling point solvent in the organic solvent of above-mentioned hydroxyl as benchmark, it is preferably-60 DEG C~+170 DEG C, more preferably-20 DEG C~+170 DEG C, more preferably-10 DEG C~+140 DEG C.The boiling point of amines is for less than-60 DEG C Temperature time, in the dry run of water system coating composition, amines evaporates earlier than the organic solvent of hydroxyl, resin Gathering drastically carry out, the gloss of film and continuously ejection stability are easily reduced, and on the other hand, the boiling point of amines is When being higher than the temperature of+170 DEG C, there is the tendency that drying property is deteriorated.
In the water system coating composition of the present invention, from the viewpoint of glossiness and resistance to water, preferred amines compound is relative Ratio in the organic solvent of hydroxyl is 0.0005~0.1, more preferably 0.001~0.05.Amines is relative to containing hydroxyl When the ratio of the organic solvent of base is less than 0.0005, gloss is easily deteriorated, and on the other hand, during more than 0.1, amine remains in film In, there is the tendency that resistance to water is deteriorated.
As long as the coated article of the water system coating composition of the present invention is suitable to the size of application, thickness, shape, then can make Use common material, surface process, application can be carried out in advance.As coated article, can enumerate: as hardly picking up water system The material of coating composition, iron plate, aluminium sheet, corrosion resistant plate, ceramic industry class coated plate and with poly terephthalic acid second two The resins such as alcohol ester (PET), Merlon, acronitrile-butadiene-styrene (ABS), vinyl chloride, acrylic acid or polyester are as main one-tenth The resin sheet divided or its formed body.As long as these coated articles, then can obtain good adaptation and gloss.It addition, can To be coated on absorbefacient paper, cloth and not make it permeate water system coating composition is had.
For the water system coating composition of the present invention, in order to give each function as coated film, can be containing disappearing The additives such as infusion, surface conditioner, sagging inhibitor, UV absorbent or light stabilizer.
Embodiment
Hereinafter, by embodiment and comparative example, the present invention is given the account in greater detail.It should be noted that about reality Executing the record of example and comparative example, " part " and " % " is based on quality criteria.
<synthesis of resin 1 (containing the urethane dispersion of Merlon base)>
In the four-hole boiling flask being provided with agitator, reflux condensing tube, thermometer and nitrogen ingress pipe, put into 1,6-oneself two Alcohol polycarbonate polyol (mean molecule quantity 2000) 100.0 parts, neopentyl glycol 4.0 parts, trimethylolpropane 1.0 parts, 1,4- Cyclohexanedimethanol 10.0 parts, dihydromethyl propionic acid 8.0 parts, dibutyltin dilaurate 0.001 part and butanone 110.0 Part, mix homogeneously.Then, addition 4,4 '-di-2-ethylhexylphosphine oxide (cyclohexyl isocyanate) 80.0 parts, react 6 hours at 70 DEG C, Methyl ethyl ketone solution to carboxylic isocyanate-terminated prepolymer.After above-mentioned solution is cooled to less than 40 DEG C, add Triethylamine 6.0 parts, is neutralized reaction 30 minutes at 40 DEG C.
Then, the solution neutralized is cooled to less than 30 DEG C, uses dispersion machine blade, be slowly added into water 430.0 parts, make the isocyanate-terminated prepolymer corrective dispersion containing Merlon base, obtain dispersion liquid.It addition, will be The amine aqueous solution dissolving Diethylenetriamine 1.35 parts in 20.0 parts of water is added drop-wise in above-mentioned dispersion liquid, it addition, add 50% hydrazine water Solution 5.0 parts so that it is react 2 hours.Then, reduce pressure at 30 DEG C, carry out desolventizing process, obtain solid constituent 35%, viscosity 40mPa s, acid number=15, the dispersions of polyurethanes containing Merlon base of mean diameter (d50)=30nm, Tg=45 DEG C.
<synthesis of resin 2 (containing the urethane dispersion of Merlon base)>
In the four-hole boiling flask being provided with agitator, reflux condensing tube, thermometer and nitrogen ingress pipe, put into Isosorbide-5-Nitrae-fourth two Alcohol polycarbonate polyol (mean molecule quantity 2000) 100.0 parts, neopentyl glycol 4.0 parts, trimethylolpropane 1.0 parts, 1,4- Cyclohexanedimethanol 10.0 parts, dihydromethyl propionic acid 8.0 parts, dibutyltin dilaurate 0.001 part and butanone 110.0 Part, mix homogeneously.Then, addition 4,4 '-di-2-ethylhexylphosphine oxide (cyclohexyl isocyanate) 80.0 parts, react 6 hours at 70 DEG C, Methyl ethyl ketone solution to carboxylic isocyanate-terminated prepolymer.After above-mentioned solution is cooled to less than 40 DEG C, add Triethylamine 6.0 parts, is neutralized reaction 30 minutes at 40 DEG C.
Then, the solution neutralized is cooled to less than 30 DEG C, uses dispersion machine blade, be slowly added into water 430.0 parts, make the isocyanate-terminated prepolymer corrective dispersion containing Merlon base, obtain dispersion liquid.It addition, will be The amine aqueous solution dissolving Diethylenetriamine 1.35 parts in 20.0 parts of water is added drop-wise in above-mentioned dispersion liquid, it addition, add 50% hydrazine water Solution 5.0 parts so that it is react 2 hours.Then, reduce pressure at 30 DEG C, carry out desolventizing process, obtain solid constituent 35%, viscosity 46mPa s, acid number=15, the dispersions of polyurethanes containing Merlon base of mean diameter (d50)=34nm, Tg=50 DEG C.
<synthesis of resin 3 (containing the urethane dispersion of Merlon base)>
In the four-hole boiling flask being provided with agitator, reflux condensing tube, thermometer and nitrogen ingress pipe, put into poly-Isosorbide-5-Nitrae- Cyclohexanedimethyleterephthalate carbonate diol (mean molecule quantity 2000) 100.0 parts, neopentyl glycol 14.0 parts, trimethylolpropane 1.0 parts, dihydromethyl propionic acid 8.0 parts, dibutyltin dilaurate 0.001 part and butanone 110.0 parts, mix homogeneously. Then, add hexamethylene diisocyanate 31.0 parts, 4,4 '-di-2-ethylhexylphosphine oxide (cyclohexyl isocyanate) 41.0 parts, at 70 DEG C Lower reaction 6 hours, obtains the methyl ethyl ketone solution of carboxylic isocyanate-terminated prepolymer.Above-mentioned solution is cooled to 40 After below DEG C, add triethylamine 6.0 parts, at 40 DEG C, be neutralized reaction 30 minutes.
Then, the solution neutralized is cooled to less than 30 DEG C, uses dispersion machine blade, be slowly added into water 430.0 parts, make the isocyanate-terminated prepolymer corrective dispersion containing Merlon base, obtain dispersion liquid.It addition, will be The amine aqueous solution dissolving Diethylenetriamine 1.35 parts in 20.0 parts of water is added drop-wise in above-mentioned dispersion liquid, adds 50% hydrazine water-soluble Liquid 5.0 parts so that it is react 2 hours.Then, reduce pressure at 30 DEG C, carry out desolventizing process, obtain solid constituent 35%, viscosity 52mPa s, acid number=17, the dispersions of polyurethanes containing Merlon base of mean diameter (d50)=39nm, Tg=40 DEG C.
<synthesis of resin 4 (without the urethane dispersion of Merlon base)>
In the four-hole boiling flask being provided with agitator, reflux condensing tube, thermometer and nitrogen ingress pipe, put into neopentyl glycol 20.0 parts, trimethylolpropane 1.0 parts, 1,4 cyclohexane dimethanol 5.5 parts, dihydromethyl propionic acid 5.5 parts, dibutyltindilaurylmercaptide Cinnamic acid ester 0.001 part and butanone 110.0 parts, mix homogeneously.Then, add hexamethylene diisocyanate 12.0 parts and 4,4 '-di-2-ethylhexylphosphine oxide (cyclohexyl isocyanate) 82.0 parts, reacts 6 hours at 70 DEG C, obtains carboxylic NCO The methyl ethyl ketone solution of the prepolymer of end-blocking.After above-mentioned solution is cooled to less than 40 DEG C, add triethylamine 4.2 parts, at 40 DEG C It is neutralized reaction 30 minutes.
Then, the solution neutralized is cooled to less than 30 DEG C, uses dispersion machine blade, be slowly added into water 250.0 parts, make isocyanate-terminated prepolymer corrective disperse, obtain dispersion liquid.It addition, will dissolve in 20.0 parts of water The amine aqueous solution that Diethylenetriamine is 1.35 parts is added drop-wise in above-mentioned dispersion liquid, adds 50% hydrazine aqueous solution 5.0 parts, and reaction 2 is little Time.Then, reduce pressure at 30 DEG C, carry out desolventizing process, obtain solid constituent 35%, viscosity 61mPa s, acid number=20, average The stable dispersions of polyurethanes without Merlon base of particle diameter (d50)=40nm, Tg=50 DEG C.
<synthesis of resin 5 (acrylic dispersion)>
In the four-hole boiling flask being provided with agitator, reflux condensing tube and thermometer, add 60 parts of water, polyoxyethylene benzene second Thiazolinyl phenyl ether sulfate ammonium salt 0.6 part and polyoxy alkylene alkyl ether 2 parts, be heated to 70 DEG C, adds potassium peroxydisulfate 0.2 part. Then, dropping is mixed by butyl acrylate 7.0 parts, 0.8 part of acrylic acid, styrene 24.0 parts and methyl methacrylate 48.2 parts The mixture closed.Then, add 60 parts of water, prepare in the way of obtaining pH=9 with ammonia.Obtain solid constituent=41%, Mean diameter (d50)=75nm, Tg=81 DEG C, the good acrylic dispersion of acid number=8.
<coating composition>
As pigment, use:
White carbon black (trade name: ス ペ シ ャ Le Block ラ ッ Network 550, Evonik Degussa Corp.'s system)
C.I. Pigment Blue 15 (trade name: イ Le ガ ラ イ ト Block Le 8700, Ciba's system),
Quinoxalinediones (trade name: ホ ス タ パ system イ エ ロ H5G, Clariant Corporation system),
Dimethylquinacridone (trade name: ス パ マ ゼ Application タ RG, DIC company system),
Titanium dioxide (trade name: TR92, Huntsman Corporation's system),
As wetting agent, use:
Polyoxyethylene styrene phenyl ether (HLB=14,18),
Polyoxyethylene tridecyl ether (HLB=13),
Polyoxyethylene lauryl ether (HLB=14),
Polyoxyethylene isodecyl ether (HLB=16),
As defoamer A, use SN デ Off ォ マ 1312 (company of Sheng Nuopuke Co., Ltd. system),
As defoamer B, use エ Application バ イ Le ジ ェ system AD01 (Air Products Company system),
As surface conditioner A, use TSF4446 (polyether modified silicon oil, Mai Tu company system),
As surface conditioner B, use BYK349 (polyether modified siloxane, PVC ッ グ ケ ミ ジ ャ パ Application company system).
<preparation of coating composition>
(embodiment 1~252)
Defoamer, the organic solvent (having 1 hydroxyl in 1 molecule) of hydroxyl, pigment, wetting agent and ion are exchanged Water (the 30% of whole water yields of interpolation) mix, use the mixing mean diameter to pigment of ball mill (d50) reach 80nm~ 120nm.Then, add by resin 1~5 obtained above, surface conditioner, hydroxy organic solvent (1 molecule has 2 with Upper hydroxyl), amines and ion exchange water (the 70% of whole water yields of interpolation), use dispersion machine to be sufficiently stirred for, prepare water It it is coating composition.
(embodiment 253~263)
The organic solvent (having 1 hydroxyl in 1 molecule) of hydroxyl, pigment, wetting agent and ion exchange water (are added Whole water yields 30%) mixing, use the mixing mean diameter to pigment of ball mill (d50) reach 80nm~120nm.Then, Add by resin 1 and 5 obtained above, surface conditioner, hydroxy organic solvent (there are in 1 molecule more than 2 hydroxyls), amination Compound and ion exchange water (the 70% of whole water yields of interpolation), use dispersion machine to be sufficiently stirred for, prepare water system coating compositions Thing.
(embodiment 264~274)
Defoamer, the organic solvent (having 1 hydroxyl in 1 molecule) of hydroxyl, pigment, wetting agent and ion are exchanged Water (the 30% of whole water yields of interpolation) mix, use the mixing mean diameter to pigment of ball mill (d50) reach 80nm~ 120nm.Then, add by resin 1 and 5 obtained above, hydroxy organic solvent (there are in 1 molecule more than 2 hydroxyls), amination Compound and ion exchange water (the 70% of whole water yields of interpolation), use dispersion machine to be sufficiently stirred for, prepare water system coating compositions Thing.
(embodiment 275~285)
The organic solvent (having 1 hydroxyl in 1 molecule) of hydroxyl, pigment, wetting agent and ion exchange water (are added Whole water yields 30%) mixing, use the mixing mean diameter to pigment of ball mill (d50) reach 80nm~120nm.Then, Add by resin 1 and 5 obtained above, hydroxy organic solvent (there are in 1 molecule more than 2 hydroxyls), amines and from Sub-exchanged water (the 70% of whole water yields of interpolation), uses dispersion machine to be sufficiently stirred for, prepares water system coating composition.
(comparative example 1)
Defoamer, the organic solvent (having 1 hydroxyl in 1 molecule) of hydroxyl, pigment, wetting agent and ion are exchanged Water (the 30% of whole water yields of interpolation) mix, use the mixing mean diameter to pigment of ball mill (d50) reach 80nm~ 120nm.Then, add by resin 4 and 5 obtained above, surface conditioner, hydroxy organic solvent (1 molecule has 2 with Upper hydroxyl), amines and ion exchange water (the 70% of whole water yields of interpolation), use dispersion machine to be sufficiently stirred for, prepare water It it is coating composition.
(comparative example 2)
Defoamer, the organic solvent (having 1 hydroxyl in 1 molecule) of hydroxyl, pigment, wetting agent and ion are exchanged Water (the 30% of whole water yields of interpolation) mix, use the mixing mean diameter to pigment of ball mill (d50) reach 80nm~ 120nm.Then, add by resin 4 and 5 obtained above, surface conditioner, hydroxy organic solvent (1 molecule has 2 with Upper hydroxyl) and ion exchange water (the 70% of whole water yields of interpolation), use dispersion machine to be sufficiently stirred for, prepare water system coating group Compound.
(comparative example 3)
Defoamer, pigment, wetting agent and ion exchange water (the 30% of whole water yields of interpolation) are mixed, uses bead mill The mixing mean diameter to pigment of machine (d50) reaches 80nm~120nm.Then, add by resin 4 and 5 obtained above, surface Regulator, hydroxy organic solvent (there are in 1 molecule more than 2 hydroxyls), amines and ion exchange water (interpolation whole The 70% of the water yield), use dispersion machine to be sufficiently stirred for, prepare water system coating composition.
(comparative example 4)
Defoamer, pigment, wetting agent and ion exchange water (the 30% of whole water yields of interpolation) are mixed, uses bead mill The mixing mean diameter to pigment of machine (d50) reaches 80nm~120nm.Then, add by resin 1 and 5 obtained above, surface Regulator, amines and ion exchange water (the 70% of whole water yields of interpolation), use dispersion machine to be sufficiently stirred for, prepare water It it is coating composition.
(comparative example 5)
Defoamer, the organic solvent (having 1 hydroxyl in 1 molecule) of hydroxyl, pigment and ion exchange water (are added Whole water yields 30%) mixing, use the mixing mean diameter to pigment of ball mill (d50) reach 80nm~120nm.Then, Add by resin 1 and 5 obtained above, hydroxy organic solvent (there are in 1 molecule more than 2 hydroxyls), amines and from Sub-exchanged water (the 70% of whole water yields of interpolation), uses dispersion machine to be sufficiently stirred for, prepares water system coating composition.
The water system coating composition of preparation is evaluated by following method.Show the result in table 1~table 19.
<continuous ejection>
Use ラ ミ レ ス PJ-1304NX, water system coating composition is carried out on vinyl chloride sheet surface the painting of 1m × 4m Dress, the sheet number bending based on flight and coming off, it is evaluated by following benchmark.
Zero: bend without flight and come off.
△: flight bending and the total tablet number come off are 1~9.
×: flight bending and the total tablet number come off are more than 10.
<storage-stable>
Obtained water system coating composition is stood at 50 DEG C preservation 28 days, by visually, enters based on following benchmark Row is evaluated.
Zero: unchanged.
△: slightly float.
×: produce precipitation or separate.
<gloss>
Make to use force the ラ ミ レ ス PJ-1304NX of rattan industrial group, application water system coating compositions on vinyl chloride sheet surface Thing, uses the gloss meter VG2000 of electricity Se industrial group of Japan, is measured the gloss in abundant dried painting face.
<wettability>
Make to use force the ラ ミ レ ス PJ-1304NX of rattan industrial group, by water system coating composition on vinyl chloride sheet surface Carry out application with the area of 10cm × 10cm, by visually, be evaluated based on following benchmark.
Zero: whole face is printed equably.
△ a: part observes repulsion part.
×: the degree of half observes repulsion part.

Claims (8)

1. a water system coating composition, it is characterised in that containing coloring agent, water, wetting agent, amines, the having of hydroxyl Machine solvent and the carbamate resins with Merlon base,
Described wetting agent is selected from anionic based surfactants, cationic based surfactants and nonionic class surfactant In at least one,
Described amines is selected from methylamine, ethamine, propylamine, 2-aminopropane., butylamine, tert-butylamine, hexylamine, benzylamine, ethanolamine, isopropyl Hydramine, butanolamine, hexanol amine, 1,2-propanediamine, 1,3-propanediamine, 1,4-butane diamine, 1,6-hexane diamine, pyrroles Alkane, morpholine, dimethylamine, diethylamine, di-n-propylamine, diisopropylamine, dibutyl amine, diethanolamine, diisopropanolamine (DIPA), N-methyl ethanol Amine, N-ehtylethanolamine, N-butylethanolamine, N-butyl isopropanolamine, N-tert-butyl group isopropanolamine, N, N-diethyl second two Amine, N, N-dimethyl-1,3-diaminopropanes, N, N-diethyl-1,3-diaminopropanes, piperazine, trimethylamine, triethylamine, three Propylamine, Tris(isopropylamine)., tri-n-butylamine, N-methyl-diethyl-amine, N, N-dimethyl propylamine, triethanolamine, N methyldiethanol amine, N-second Base diethanolamine, N butyl diethanol amine, N-tertiarybutyldiethanolamine, N, N-dimethylethanolamine, N, N-diethyl ethylene diamine, N, N-dibutylethanolamine, N, N-di-t-butyl ethanolamine, triisopropanolamine, N-methyl diisopropanolamine (DIPA), N-ethyl diisopropyl Hydramine, N-butyl diisopropanolamine (DIPA), N-tert-butyl group diisopropanolamine (DIPA), N, N-dimethylisopro panolamine, N, N-diethyl isopropanol Amine, N, N-dibutylisopropanolamine and N, at least one in N-di-t-butyl isopropanolamine,
In the organic solvent of described hydroxyl, the organic solvent that hydroxyl value is 1 in (A) 1 molecule and the hydroxyl in (B) 1 molecule Radix be the quality ratio of the organic solvent of more than 2 be A:B=100:50~100:170,
The organic solvent that hydroxyl value is 1 in described (A) 1 molecule is selected from gylcol ether and propylene glycol apoplexy due to endogenous wind at least One,
The organic solvent that hydroxyl value is more than 2 in described (B) 1 molecule for selected from ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol, 2-methyl-1,3-propanediol, 1,3-propylene glycol, 1,2-butanediol, 1,3 butylene glycol, 1,4-butanediol, 3-first Base-1,3 butylene glycol, neopentyl glycol, 1,2-pentanediol, 1,5-pentanediol, 3-methyl isophthalic acid, 5-pentanediol, 1,2-hexanediol, 1, 6-hexanediol, ethohexadiol, 1,4-butanediol, 1,4 cyclohexane dimethanol, glycerol, trimethylolpropane, dipropylene glycol and three At least one in propylene glycol.
2. water system coating composition as claimed in claim 1, it is characterised in that with in the organic solvent of described hydroxyl Low boiling point solvent is as benchmark, and the boiling spread of described amines is-60 DEG C~+170 DEG C.
3. water system coating composition as claimed in claim 2, it is characterised in that with in the organic solvent of described hydroxyl Low boiling point solvent is as benchmark, and the boiling spread of described amines is-20 DEG C~+170 DEG C.
4. the water system coating composition as according to any one of claims 1 to 3, it is characterised in that described hydroxyl organic In solvent, the organic solvent that hydroxyl value is 1 in (A) 1 molecule and the hydroxyl value in (B) 1 molecule are more than 2 organic molten The quality ratio of agent is 100:50~100:150.
5. the water system coating composition as according to any one of claims 1 to 3, it is characterised in that described amines is relative Quality ratio in the organic solvent of described hydroxyl is 0.0005~0.1.
6. the water system coating composition as according to any one of claims 1 to 3, it is characterised in that described in there is Merlon The carbamate resins of base is mean diameter 30nm~the urethane dispersion of 300nm or urethane emulsions.
7. the water system coating composition as according to any one of claims 1 to 3, it is characterised in that possibly together with glass transition Acrylic acid dispersion or the acrylic emulsion that temperature Tg is more than 60 DEG C, mean diameter is 50nm~200nm.
8. the water system coating composition as according to any one of claims 1 to 3, it is characterised in that described water system coating compositions Whole organic solvent amounts in thing are 20 mass %~55 mass %.
CN201280016873.0A 2011-03-31 2012-03-30 Water system coating composition Expired - Fee Related CN103476883B (en)

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JP2011-080483 2011-03-31
PCT/JP2012/058550 WO2012133752A1 (en) 2011-03-31 2012-03-30 Aqueous coating composition

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5854337A (en) * 1996-10-30 1998-12-29 Herberts Gesellschaft Mit Beshrankter Haftung Aqueous binder dispersion for physically drying coating agents and their use
CN1649954A (en) * 2002-04-26 2005-08-03 三菱化学株式会社 Polypropylene type aqueous dispersion, polypropylene type composite aqueous emulsion composition and its use
CN101638534A (en) * 2008-07-31 2010-02-03 精工爱普生株式会社 Ink composition, recorded material, recording method, and recording apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5854337A (en) * 1996-10-30 1998-12-29 Herberts Gesellschaft Mit Beshrankter Haftung Aqueous binder dispersion for physically drying coating agents and their use
CN1649954A (en) * 2002-04-26 2005-08-03 三菱化学株式会社 Polypropylene type aqueous dispersion, polypropylene type composite aqueous emulsion composition and its use
CN101638534A (en) * 2008-07-31 2010-02-03 精工爱普生株式会社 Ink composition, recorded material, recording method, and recording apparatus

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