CN106543871A - Water transparent coating composition - Google Patents
Water transparent coating composition Download PDFInfo
- Publication number
- CN106543871A CN106543871A CN201610770651.8A CN201610770651A CN106543871A CN 106543871 A CN106543871 A CN 106543871A CN 201610770651 A CN201610770651 A CN 201610770651A CN 106543871 A CN106543871 A CN 106543871A
- Authority
- CN
- China
- Prior art keywords
- coating composition
- water
- transparent coating
- resin
- barium sulfate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/10—Homopolymers or copolymers of methacrylic acid esters
- C09D133/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention provides a kind of water transparent coating composition, and which can form the transparent coating of corrosion protection, the transparency, gloss, resistance to water and excellent moisture resistance on base material.A kind of water transparent coating composition, it is characterized in that, which is the barium sulfate (B) and water comprising overlay film formative resin (A), mean diameter containing aqueous alkide resin (a) less than 0.1 μm, and the content of the barium sulfate (B) is the water transparent coating composition in the range of 5～250 mass parts on the basis of 100 mass parts of overlay film formative resin (A)；The mist degree of the dry coating of 30 μm of the thickness obtained by the application water transparent coating composition is less than 10%.
Description
Technical field
The present invention relates to a kind of water transparent coating composition, define the film comprising the water transparent coating composition
Coated article and the water transparent coating composition manufacture method.
Background technology
In the past, as effectively utilizes metal base itself outward appearance and the method for imparting corrosion protection, people have been discussed in gold
Transparent paint coating compositionss on category base material.
Following content has been recorded in patent documentation 1：By a kind of clear coating composition is coated on various metallic plates,
So as to can not damage its quality it is attractive in appearance in the state of formed weatherability, corrosion resistance, abrasion performance, tolerate it is damaging etc. excellent
Film, the damage that can be prevented in processing and forming and/or film be caused in construction, abrasion；The clear coat compositions
Thing is that, with (A) polyvinylidene fluoride and thermoplastic paint composition of (B) acrylic resin as main component, its feature exists
In relative to (A) composition and 100 weight portion of total amount of (B) composition, the acrylic acid of the hydroxyl containing (C) solvent soluble
1～20 weight portion of polytetrafluoroethylpowder powder of 2～20 μm of grafting 3～30 weight portion of fluororesin and (D) mean diameter, and will
(E) the end-blocking polyisocyanic acid esterification of curing reaction can be carried out with the acrylic acid-grafted fluororesin of the hydroxyl of above-mentioned (C) composition
Compound according to NCO with should the equivalent proportion (NCO/OH equivalent proportions) of hydroxyl of (C) composition become 0.5～1.5 mode and contain
Have.But there are following problem：As the clear coating composition is organic solvent system coating thus environmental pressure is big, enter
One step due to need to be heated to more than 200 DEG C when film is formed thus high energy consumption.
Prior art literature
Patent documentation
Patent documentation 1：Japanese Unexamined Patent Publication 2000-136342 publications
The content of the invention
The problem for solving is wanted in invention
The present invention is completed by considering said circumstances, be its object is to offer one kind and can be formed corrosion protection, the transparency, light
The water transparent coating composition of the transparent coating of pool, resistance to water and excellent moisture resistance, being especially to provide one kind can be by normal
Temperature is dried the aqueouss of the transparent coating for forming corrosion protection, the transparency, gloss, resistance to water and excellent moisture resistance on metal base
Clear coating composition.
For solution to problem
The present inventor etc. have been repeated deep investigation to achieve these goals, are as a result found that, using containing spy
The water transparent coating composition of quantitative specific resin and specific pigment, is capable of achieving above-mentioned purpose.
That is, the present invention includes following forms.
Item 1：A kind of water transparent coating composition, it is characterised in which is comprising covering containing aqueous alkide resin (a)
Film formative resin (A), mean diameter barium sulfate (B) and water less than 0.1 μm, and the content of the barium sulfate (B) is covering
It is the water transparent coating composition in the range of 5～250 mass parts on the basis of film formative resin (A) 100 mass parts；It is logical
The mist degree of the dry coating of 30 μm of the thickness crossed the application water transparent coating composition and obtain is less than 10%.
Item 2：Water transparent coating composition according to item 1, wherein, overlay film formative resin (A) further contains
Aqueous acrylic resin and/or aqueous epoxy resins.
Item 3：Water transparent coating composition according to item 1 or 2, which further contains desiccant (C).
Item 4：A kind of coated article, wherein, the aqueous clear coating group having on base material any one of item 1～3
The cured coating film of compound.
Item 5：Coated article according to item 4, wherein, base material is metal base.
Item 6：A kind of manufacture method of water transparent coating composition, it is characterised in which is by application aqueous transparent
Coating composition and the mist degree of the dry coating of 30 μm of thickness that obtains are the system of less than 10% water transparent coating composition
Make method, the water transparent coating composition includes the overlay film formative resin (A) containing aqueous alkide resin (a), average
Barium sulfate (B) and water of the particle diameter less than 0.1 μm, and the content of the barium sulfate (B) is with 100 matter of overlay film formative resin (A)
It is in the range of 5～250 mass parts on the basis of amount part；The manufacture method of the water transparent coating composition is comprising following
Operation：Barium sulfate (B) using the aqueous alkide resin (a) by the mean diameter less than 0.1 μm is disperseed.
The effect of invention
There is above-mentioned composition by making the water transparent coating composition of the present invention, so as to corrosion protection can be formed on base material
The transparent coating of property, the transparency, gloss, resistance to water and excellent moisture resistance.
Specific embodiment
Hereinafter, illustrate in greater detail the water transparent coating composition of the present invention.
The water transparent coating composition of the present invention is characterised by which is comprising covering containing aqueous alkide resin (a)
Film formative resin (A), mean diameter barium sulfate (B) and water less than 0.1 μm, and the content of the barium sulfate (B) is covering
It is the water transparent coating composition in the range of 5～250 mass parts on the basis of film formative resin (A) 100 mass parts；It is logical
The mist degree of the dry coating of 30 μm of the thickness crossed the application water transparent coating composition and obtain is less than 10%.
Overlay film formative resin (A)
The water transparent coating composition of the present invention contains aqueous alkide resin (a) as in overlay film formative resin (A)
At least one.
Aqueous alkide resin (a)
Aqueous alkide resin (a) is the tree being compounded as at least one in overlay film formative resin (A) in the present invention
Fat, herein " aqueouss " refer to water solublity and/or water dispersible, particularly preferably with water dispersible.
Above-mentioned aqueous alkide resin (a) is to be esterified polyacid constituent, polyol component and fatty acid oil and obtained
The resin for arriving, and if aqueouss and have film Forming ability be then not particularly limited.
As above-mentioned polyacid constituent, such as it is main using from phthalic anhydride, M-phthalic acid, p-phthalic acid,
Choosing in tetrabydrophthalic anhydride, hexahydrophthalic anhydride, succinic acid, fumaric acid, adipic acid, decanedioic acid, maleic anhydride etc.
The binary acid of more than a kind for going out and these sour low alkyl group carboxylates, as desired and with trimellitic anhydride, methyl ring
The polyprotic acid more than ternarys such as hexene tricarboxylic acids, pyromellitic dianhydride, sulfosalicylic phthalate, sulfoisophthalic acid and they
Ammonium salt, sodium salt and/or low alkyl group carboxylate etc..In addition, the purpose such as can adjust for molecular weight and and with benzoic acid, Fructus Crotonis
The monoacid such as acid, p-tert-butyl benzoic acid are used as sour composition.
As above-mentioned polyol component, for example mainly using ethylene glycol, diethylene glycol, Propylene Glycol, BDO, new penta
The dihydroxylic alcohols such as glycol, 3- methyl pentanediols, Isosorbide-5-Nitrae-hexanediol, 1,6- hexanediol, further can as desired and with glycerol, three
The polyhydric alcohol more than ternarys such as hydroxymethyl ethane, trimethylolpropane, tetramethylolmethane, with polyoxy for ethylidene polyhydric alcohol
Deng.These polyhydric alcohol individually or can mix two or more and use.In addition, also can by above-mentioned sour composition, alcohol composition one
Aliquot replacement is dihydromethyl propionic acid, 3-hydroxypivalic acid, P-hydroxybenzoic acid etc., these sour lower alkyl esters, 6-caprolactone
Etc. hydroxyalkanoic acid components such as lactone.
As above-mentioned fatty acid oil, for example, can include coco-nut oil fatty acid, soya fatty acid, Semen Lini oil fat
Acid, safflower oil fatty acid, ready denier oil acid, dehydrated castor oil fatty acid, tung oil fatty acid etc..The fatty acid oil is preferably not
Satisfied fatty acid.
In addition, can also be the ester exchange reaction for having used oils and fatss using the esterification of above-mentioned fatty acid oil.
The esterification (also comprising ester exchange reaction) of these compositions can be carried out by method known to its own.
In addition, following resin is also contained in above-mentioned aqueous alkide resin (a)：Using being made by using epoxide
Epoxide is carried out a part for alcohol composition method of partial esterification etc., so as to the epoxy alkyd resin for obtaining；
Using by the polymerism unsaturated monomers such as styrene, (methyl) acrylate being polymerized in the presence of alkyd resin
Method or acrylic polymer is grafted on method of alkyd resin etc. by additive reaction etc. so as to obtain acrylic acid change
Property alkyd resin；Maleic anhydride is directed in into the maleylation alkyd resin of alkyd resin；By maleylation alkyd resin
With the grafting alkyd resin of alkyd resin addition of hydroxyl etc..
Further, following resin is also contained in above-mentioned aqueous alkide resin (a)：A kind of alkyd resin, the alkyd tree
Fat as shown in Japanese Unexamined Patent Publication 2002-356545, in the poly- terephthaldehyde reclaimed with the recycling for resource
Sour glycol ester (such as PET bottle), industrial waste polyethylene terephthalate, p-phthalic acid are made for primary raw material
Make polyester article (thin film, fiber, the automotive department of polyethylene terephthalate and/or polybutylene terephthalate (PBT) etc.
Part, electronic unit etc.) when, produced fragment is regenerated and is obtained the polyester resin that p-phthalic acid is primary raw material
(hreinafter referred to as " regeneration PES "), so as to regeneration PES is melted in mixture of the above-mentioned alcohol composition with polyacid constituent,
Depolymerization is carried out, and carries out esterification, so as to obtain；The Malaysia for making the alkyd resin be reacted and be obtained with maleic anhydride
Acylated alkyd resin；The alkyd resin is made with the acid modified alcoholic tree that anhydride with olefinic unsaturated group is not reacted and obtained
Fat etc..
Consider with regard to viewpoints such as the oil content of above-mentioned aqueous alkide resin (a), curable, outward appearance from the film for being formed, be
In the range of 10～80%, in the range of preferably 20～70%.Herein, oil content refers to, by will be contained in resin solid content
Fatty acid amount be scaled obtained from triglyceride be worth be indicated with percentage rate obtained from numerical value (JIS K5500 applications
Term numbering is 2055).It is with regard to the adjustment of the oil content of above-mentioned aqueous alkide resin (a), for example, available to will act as reacted constituent
Operation that the species of aforementioned fatty acid oil and/or amount are adjusted etc. and carry out.
Above-mentioned aqueous alkide resin (a) for example can be obtained by following method：Alkyd resin is set to into high acid value, profit
It is neutralized so as to the method for carrying out Water-borne modification with alkali compoundss such as aminated compoundss；Polyoxy generation is imported in alkyd resin sub-
The hydrophilic groups such as ethyl, act on the self emulsifying method that carry out in water using the hydrophilic group；Use in the presence of emulsifying agent
The such homogenizer of dispersion type blender etc. action of forced stirring and method for being dispersed in water in water by alkyd resin；With
And, alkyd resin is set to into low acid number, for the water dispersible alkyd granule obtained using homogenizer, for carrying
Purpose high-dispersed and that particle diameter fitly diminishes, it is micronized with specific high energy shear energy using carrying out
The method is dispersed in water by the dispersion machine of power；And used the method for these methods etc..
As above-mentioned aqueous alkide resin (a), commercially available product can be used.As the commercially available product of the aqueous alkide resin (a), example
Such as, Watersol series (DIC company systems) etc. are included.
With regard to the mass ratio of the above-mentioned aqueous alkide resin (a) in overlay film formative resin (A), from the transparent coating for being formed
Corrosion protection, the viewpoint such as hardness considers, is, in the range of 5～100% mass, in the range of preferably 20～90% mass, to enter
One step is preferably in the range of 30～70% mass.
In addition, with regard to the present invention water transparent coating composition, as overlay film formative resin (A), can containing except
Resin beyond above-mentioned aqueous alkide resin (a).As the resin, for example, include aqueous acrylic resin, water-base epoxy
Resin, carbamate resins, phenolic resin, silicones, fluororesin etc..Wherein, from formed transparent coating weatherability with
And from the viewpoint of hardness, preferably using aqueous acrylic resin.In addition, from corrosion protection, the tack to metal base
Consider etc. viewpoint, preferably using aqueous epoxy resins.
Above-mentioned aqueous acrylic resin preferably has water dispersible and/or water solublity, particularly preferably with water dispersible.
In addition, the aqueous acrylic resin preferably hydrophilic base with anionic property, nonionic or cationic
Group.Using the presence of which, aqueous acrylic resin can be made to be dispersed or dissolved in water-medium well.Wherein, from formation
The viewpoint such as the resistance to water of film consider, the aqueous acrylic resin preferably hydrophilic radical with anionic property.
As the example of the hydrophilic radical of above-mentioned anionic property, acidic-group is included.As the example of the acidic-group
Son, includes carboxyl, sulfonic group, phosphate, phenolic hydroxyl group etc..They also can be neutralized by bases such as amine.As the acidic groups
Group, considers from viewpoints such as the resistances to water of film for being formed, preferably carboxyl.
As the example of the hydrophilic radical of aforementioned nonionic, polyethylene glycol groups, polyglyceryl, hydrophilic sugar are included
Chain base etc..
As the example of the hydrophilic radical of aforesaid cations, primary amine groups～tertiary amino, amino, pyridine are included
The basic group such as base, sulfonium Ji, be phosphonio.
With regard to above-mentioned aqueous acrylic resin, for example, can be by using method known to its own, for example, organic
The methods such as the solution polymerization process in solvent, the emulsion polymerization in water, polymerism unsaturated monomer is polymerized so as to obtain
.
As above-mentioned polymerism unsaturated monomer, for example, include：(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) tert-butyl acrylate, (methyl) the just own ester of acrylic acid, (methyl) n-octyl, (methyl) acrylic acid 2- second
The own ester of base, (methyl) nonylphenol acrylate ester, (methyl) tridecyl acrylate, (methyl) lauryl acrylate, (methyl) third
Olefin(e) acid stearyl ester, " the different stearyl ester of acrylic acid " (trade name, Osaka Organic Chemical Industry company system), (methyl) acrylate
Ester, (methyl) acrylic methyl cyclohexyl, (methyl) t-butylcyclohexyl ester, (methyl) acrylic acid cyclododecane base ester etc.
(methyl) acrylic acid alkyl or cycloalkyl ester；The polymerism with isobornyl such as (methyl) isobornyl acrylate is unsaturated single
Body；The polymerism unsaturated monomers with adamantyl such as (methyl) acrylic acid Buddha's warrior attendant alkyl ester；Styrene, α-methyl styrene,
The vinyl aromatic compounds such as vinyltoluene；Vinyltrimethoxy silane, VTES, vinyl three
(2- methoxy ethoxy) silane, γ-(methyl) acryloxypropyl trimethoxy silane, γ-(methyl) acryloxy
The polymerism unsaturated monomer with alkoxysilyl such as propyl-triethoxysilicane；Perfluoro butyl ethyl (methyl) propylene
Perfluoroalkyl (methyl) acrylate such as acid esters, perfluorooctylethyl group (methyl) acrylate；Fluoroolefins etc. have fluoro-alkyl
Polymerism unsaturated monomer；Polymerism unsaturated monomer with the optical polymerism such as dimaleoyl imino functional group；N- ethylene
The vinyl compounds such as base ketopyrrolidine, ethylene, butadiene, chlorobutadiene, propionate, vinyl acetate；(methyl) third
Olefin(e) acid 2- hydroxyl ethyl esters, (methyl) acrylic acid 2- hydroxypropyl acrylates, (methyl) acrylic acid 3- hydroxypropyl acrylates, (methyl) acrylic acid 4- hydroxy butyl esters etc.
The monoesters compound of the dihydroxylic alcohols of (methyl) acrylic acid and carbon number 2～8, be somebody's turn to do (methyl) acrylic acid and carbon number 2～8 two
The 6-caprolactone modified body of the monoesters compound of first alcohol, N- hydroxymethyls (methyl) acrylamide, 1-propenol-3, with molecular end it is
The polymerism unsaturated monomer of the hydroxyls such as (methyl) acrylate of the polyethylene oxide chain of hydroxyl；(methyl) acrylic acid, horse
Carry out the carboxylic polymerism unsaturated monomers such as sour .beta.-methylacrylic acid, β-carboxy ethyl (methyl) acrylate；(methyl) acrylonitrile,
(methyl) acrylamide, N, N- dimethyl aminoethyls (methyl) acrylate, N, N- dimethylaminopropyls (methyl) propylene
The nitrogenous polymerism unsaturated monomer such as the addition product of amide, glycidyl (methyl) acrylate and aminated compoundss；(first
Base) allyl acrylate, 1,6-HD two (methyl) acrylate etc. in 1 molecule with the polymerism insatiable hunger of more than 2
With the polymerism unsaturated monomer of group；Glycidyl (methyl) acrylate, Beta-methyl glycidyl (methyl) propylene
Acid esters, 3,4- epoxycyclohexyl-methyls (methyl) acrylate, 3,4- epoxycyclohexylethyls (methyl) acrylate, 3,4- rings
The polymerism unsaturated monomer containing epoxy radicals such as oxygen Cyclohexylpropyl (methyl) acrylate, allyl glycidyl ether；Tool
There is (methyl) acrylate for the polyethylene oxide chain that molecular end is alkoxyl；2- acrylamido -2- methyl propane sulfonic acids,
Allyl sulphonic acid, styrene sulfonic acid sodium salt, sulfoethyl (methacrylic acid) ester and its sodium salt, ammonium salt etc. have sulfonic poly-
Conjunction property unsaturated monomer；2- acryloyl-oxyethyl phosphate ester acids, 2- methacryloxyethyl phosphate ester acids, 2- third
The polymerism insatiable hungers with phosphate such as alkene acryloxypropylethoxysilane phosphate ester acid, 2- methacryloxypropyl phosphate ester acids
And monomer；2- hydroxyl -4- (3- methacryloxy -2- hydroxy propyloxy groups) benzophenone, 2- hydroxyl -4- (3- acryloyl-oxies
Base -2- hydroxy propyloxy groups) benzophenone, 2,2 '-dihydroxy -4- (3- methacryloxy -2- hydroxy propyloxy groups) hexichol first
Ketone, 2,2 '-dihydroxy -4- (3- acryloxy -2- hydroxy propyloxy groups) benzophenone, 2- (2 '-hydroxyl -5 '-methacryl
Epoxide ethylphenyl) the polymerism unsaturated monomer with ultraviolet-absorbing functional group such as -2H- benzotriazole；4- (methyl)
Acryloxy -1,2,2,6,6- pentamethvls, 4- (methyl) acryloxy -2,2,6,6- tetramethyl piperidines, 4- cyano group -
4- (methyl) Acryloyl amino -2,2,6,6- tetramethyl piperidines, 1- (methyl) acryloyl group -4- (methyl) acryloyl group ammonia
Base -2,2,6,6- tetramethyl piperidines, 1- (methyl) acryloyl group -4- cyano group -4- (methyl) Acryloyl aminos -2,2,6,6- four
Methyl piperidine, 4- Fructus Crotonis acyloxy -2,2,6,6- tetramethyl piperidines, 4- crotonocyl amino -2,2,6,6- tetramethyl piperidines, 1- bars
The UV stable polymerism unsaturated monomers such as bean acyl -4- Fructus Crotonis acyloxy -2,2,6,6- tetramethyl piperidines；It is acrylic aldehyde, double
Acetone acrylamide, diacetone methacrylamide, acetoacetoxyethyl (methacrylic acid) ester, formoxyl styrene,
Vinyl alkyl ketone with 4～7 carbon atoms (for example, ethenyl methyl ketone, vinyl ethyl ketone, vinyl butyl ketone) etc.
Polymerism unsaturated monomer compound with carbonyl etc., they can separately using or be applied in combination two or more.
In addition, in this manual, " (methyl) acrylate " means acrylate or methacrylate." (methyl)
Acrylic acid " represents acrylic or methacrylic acid.In addition, " (methyl) acryloyl group " represents acryloyl group or methacryl
Base.In addition, " (methyl) acrylamide " represents acrylamide or Methacrylamide.
As above-mentioned aqueous acrylic resin, commercially available product can be used.As the commercially available product of the aqueous acrylic resin,
For example include Polyzol series (Showa electrician's company system), Acryset series, Udouble series (more than, Japanese catalyst is public
Department's system), Voncoat series, Watersol series (more than, DIC company systems), Joncryl series (BASF AG's system),
Polytron series, Polydurex series (more than, Asahi Kasei Chemicals Corporation systems) etc..
In the water transparent coating composition of the present invention, also contain on the basis of containing aforementioned aqueous alkide resin (a)
In the case that above-mentioned aqueous acrylic resin is as overlay film formative resin (A), with regard to the aqueous alkide resin (a) and aqueouss
The viewpoints such as the mass ratio of acrylic resin, corrosion protection, weatherability and hardness from the transparent coating for being formed consider, by aqueouss
The ratio of alkyd resin (a)/aqueous acrylic resin, is preferably 20/80～90/10 model in the range of 5/95～95/5
In enclosing, in the range of more preferably 30/70～70/30.
As aforementioned aqueous epoxy resins, for example, can use bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-A D
The bisphenol-type epoxy resins such as type epoxy resin；Epoxy obtained from be modified by above-mentioned bisphenol-type epoxy resin
Ester resin；Alicyclic epoxy resin；Polyglycol-type epoxy resin；Acrylic resin containing epoxy radicals etc..Wherein, from formation
The corrosion protection of film, the viewpoints such as the tack of metal base are considered, preferably bisphenol-type epoxy resin, more preferably bisphenol-A
Type epoxy resin.
Above-mentioned aqueous epoxy resins have water dispersible and/or water solublity.In addition, the aqueous epoxy resins preferably have the moon
The hydrophilic radical of ionic, nonionic or cationic.Using the presence of which, aqueous epoxy resins can be made to divide well
Dissipate or be dissolved in water-medium.
As the example of the hydrophilic radical of above-mentioned anionic property, acidic-group is included.As the example of the acidic-group
Son, includes carboxyl, sulfonic group, phosphate, phenolic hydroxyl group etc..They also can be neutralized by bases such as amine.
As the example of the hydrophilic radical of aforementioned nonionic, polyethylene glycol groups, polyglyceryl, hydrophilic sugar are included
Chain base etc..
As the example of the hydrophilic radical of aforesaid cations, primary amine groups～tertiary amino, amino, pyridine are included
The basic group such as base, sulfonium Ji, be phosphonio.
As above-mentioned aqueous epoxy resins, commercially available product can be used.As the commercially available product of the aqueous epoxy resins, for example, enumerate
Go out Watersol series (DIC company systems, trade name), Modepics series (Huang Chuan chemical companies system, trade name), Adeka
Resin (ADEKA company systems, trade name) etc..
In the water transparent coating composition of the present invention, also contain on the basis of containing aforementioned aqueous alkide resin (a)
In the case that above-mentioned aqueous epoxy resins are as overlay film formative resin (A), with regard to the aqueous alkide resin (a) and water-base epoxy
The viewpoints such as the mass ratio of resin, the transparency, corrosion protection, weatherability and hardness from the transparent coating for being formed consider, according to water
The ratio of property alkyd resin (a)/aqueous epoxy resins, is preferably 10/90～90/10 scope in the range of 5/95～95/5
It is interior, in the range of more preferably 15/85～85/15.
The water transparent coating composition of the present invention contains barium sulfate (B) of the mean diameter less than 0.1 μm, with above-mentioned overlay film
On the basis of 100 mass parts of formative resin (A), the content of the barium sulfate (B) is in the range of 5～250 mass parts.
Barium sulfate (B) of the mean diameter less than 0.1 μm
Barium sulfate (B) is barium sulfate of the mean diameter less than 0.1 μm.Wherein, from the transparent coating for being formed corrosion protection, thoroughly
From the viewpoint of bright property, gloss, resistance to water and moisture-proof, the mean diameter of the barium sulfate (B) is 0.01～0.09 μm of model
In enclosing, in the range of preferably 0.02～0.07 μm, in the range of more preferably 0.03～0.05 μm.
It is explained, in this manual, the mean diameter of barium sulfate (B) has been the grain of each independent barium sulfate particle
The meansigma methodss in footpath.Generally, due to barium sulfate particle coagulation and exist, thus in common particle size distribution analyzer not
Barium sulfate particle easily by the agglutinator of barium sulfate particle with each independence is distinguished and is determined, but utilizes electron microscopic
Sem observation etc., the mean diameter of the barium sulfate particle itself that can have determined independent.In this manual, barium sulfate (B) is average
Particle diameter is：By film being formed with electron microscope observation, will be in randomly marked on electron micrograph straight
The maximum gauge of 30 barium sulfate particles on line carry out it is average obtained from value.
As above-mentioned barium sulfate (B), commercially available product can be used.As the commercially available product of the barium sulfate (B), for example, include
BARIFINE BF-10 (mean diameters：0.06 μm), BARIFINE BF-1 (mean diameters：0.05μm)、BARIFINE BF-20
(mean diameter：0.03 μm), BARIFINEBF-40 (mean diameters：0.01 μm), BARIFINE BF-21 (mean diameters：0.05
μm), BARIFINE BF-25 (mean diameters：0.03 μm), BARIFINE BF-26 (mean diameters：0.03 μm) (more than, Sakai
Learn industrial group's system) etc..
In the water transparent coating composition of the present invention, with regard to the content of above-mentioned barium sulfate (B), from the transparent coating for being formed
Corrosion protection, the transparency, gloss, from the viewpoint of resistance to water and moisture-proof, with 100 matter of aforementioned overlay film formative resin (A)
On the basis of amount part, in the range of preferably 10～150 mass parts, in the range of more preferably 50～100 mass parts.
With regard to the dispersion of above-mentioned barium sulfate (B), pass through routine side using dispersion machines such as dispersion machine, ball mill, sand mills
Method is carrying out.
In addition, as the dispersion resin of above-mentioned barium sulfate (B), corrosion protection, the transparency from the transparent coating for being formed, light
From the viewpoint of pool, resistance to water and moisture-proof, aforementioned aqueous alkide resin (a) is preferably used.
Using above-mentioned aqueous alkide resin (a) as the dispersion resin of above-mentioned barium sulfate (B) in the case of, with regard to the water
Property alkyd resin (a) consumption, from the sight of the corrosion protection of transparent coating, the transparency, gloss, resistance to water and the moisture-proof for being formed
Point considers, is preferably 20～200 mass parts in the range of 10～300 mass parts on the basis of 100 mass parts of barium sulfate (B)
In the range of, in the range of more preferably 30～120 mass parts.
Can by using the present invention water transparent coating composition and form corrosion protection, the transparency, gloss, resistance to water with
Although and excellent moisture resistance transparent coating the reasons why and it is indefinite, deduce, the present invention water transparent coating composition
By being smaller barium sulfate (B) containing mean diameter, further with the overlay film shape containing aforementioned aqueous alkide resin (a)
Resin (A) become second nature so that the barium sulfate (B) compares is homogeneously dispersed in coating, thus the coating composition is being done
In the case of dry solidification, among the barium sulfate (B) of formation small particle is filled in the cross-linked structure from the aqueous alkide resin (a)
Obtained from the excellent film of barrier, as a result, corrosion protection, resistance to water and moisture-proof are improved.Deduce in addition, using flat
Particle diameter be smaller barium sulfate (B) as pigment composition, further with the overlay film containing aforementioned aqueous alkide resin (a)
Formative resin (A) is so that the barium sulfate (B) compares and is homogeneously dispersed in coating, thus forms the transparency and excellent gloss
Film.
In the water transparent coating composition of the present invention, from from the viewpoint of the storage stability of coating, pH is 7～10
In the range of, in the range of preferably 8～9.5.
In the water transparent coating composition of the present invention, can further contain desiccant (C).By by the desiccant (C)
With being mixed in coating, the drying of film can be promoted.As the desiccant (C), aliphatic carboxylate and/or cycloalkanes can be generally used
The metallic soaps such as hydrochlorate, it is contemplated that environment, the preferably desiccant not comprising lead.By except comprising being used as primary drying agent
And further comprise as redrying agent and work beyond the metal such as Co, Mn for working metal such as Ba, Zr, Ca, Zn,
Fe, Cu etc., so as to will can integrally carry out rapid draing comprising the film inside film.
With regard to the consumption of above-mentioned desiccant (C), relative to 100 mass parts of solid content of aqueous alkide resin (a), 1～5 matter
It is appropriate in the range of amount part.
In addition in the case where the water transparent coating composition of the present invention is coated on metal base, in order to prevent metal
The rust of base material oozes out and produces rust spot etc. (flash rusting) in film coated surface, thus the aqueous transparent of the present invention can be caused as needed to apply
Feed composition contains flash rust inhibitor.
As above-mentioned flash rust inhibitor, for example, include：Water miscible sodium nitrite, calcium nitrite, strontium nitrite, nitrous
The nitrites such as sour barium, ammonium nilrite；The phytates such as sodium phytate, Monopotassium phytate；Tannate；N- (2- ethoxys) three second of ethylenediamine
Sour (HEDTA), ethylenediaminetetraacetic acid (EDTA), diethylene-triamine pentaacetic acid (DTPA), trimethylen-edinitrilo-tetraacetic acid (PDTA), imido
Base oxalic acid, nitrilotriacetic acid (NTA), diethylenetriamine pentamethylenophosphonic acid (DTPMP), and their alkali metal salt etc.
Polyamines quasi-chelate compound；The addition reaction of 4- methyl-γ-oxo-benzenebutanoic acid and N-ethylmorpholine；Monoalkylamine and/or polyamines,
So that the intercalation such as quaternary ammonium ion is in the intercalation compound of the layered phosphates such as aluminium dihydrogen tripolyphosphate；Hydrazide compound, ammonia
Hydrazine derivates such as base carbamide compound, hydrazone compound etc..They can be used alone or and with two or more.
With regard to the addition of above-mentioned flash rust inhibitor, relative to the total amount of water transparent coating composition, it is 0.02～2%
In the range of quality, in the range of preferably 0.05～1% mass, this is appropriate.
In addition, with regard to the present invention water transparent coating composition can not damage the present invention effect scope, according to
Need and be compounded the coloring pigment, pigment such as rust resisting pigment, cross-linking agent, pigment dispersing agent, organic solvent, surface conditioner, ultraviolet
Light absorbers, defoamer, thickening agent, curing catalysts, sedimentation preventing agent, membrane producing promoter, antifreezing agent, skin drying preventing agent,
The common additive for coatings such as preservative, antirust agent.
With regard to the water transparent coating composition of the present invention, the various base materials of base treatment can carried out as desired
On, preferably on metal base, by always known method, for example roller application, atomized spray painting, bristle application, curtain application,
Shower application, the method such as submergence application and directly application is once or more than twice so as to forming film.By in metal base
The water transparent coating composition of the upper application present invention and form transparent coating, so as to effectively utilizes metal base itself can be obtained
Outward appearance and impart the coated article of corrosion protection.
With regard to the water transparent coating composition of the present invention, consider preferably to solidify at normal temperatures from viewpoints such as energy-conservations.Give
Illustrate, consider from viewpoints such as improve production efficiencies, can also carry out force drying and/or be heating and curing.
In the present invention, the dry coating of 30 μm of the thickness for being obtained by the above-mentioned water transparent coating composition of application
Mist degree is less than 10%, preferably less than 7%, more preferably less than 4%.
In the present invention, mist degree is the value by obtaining as follows：The saturating of transmittance haze is determined haze meter is advanced with
On bright sheet material, sample is coated with and in 23 DEG C of dryings 7 days according to the mode of the dry film thickness for becoming target, is set to test body, profit
The transmittance haze of the test body is determined with the haze meter, the transmittance haze of clear sheet is deducted so as to obtain from the measured value
Value.As above-mentioned haze meter, for example, can use " the NDH 300A ", " NDH 2000 " of electricity Se Industrial Co., Ltd of Japan system
Deng.
Specifically, in the present invention, 30 μ of thickness for being obtained by the water transparent coating composition of the application present invention
The mist degree of the dry coating of m is the value by obtaining as follows：Advancing with haze meter and determining the clear sheet of transmittance haze
On, the water transparent coating composition of the present invention is coated with according to the mode of the dry film thickness for becoming 30 μm, thereafter in 23 DEG C of dryings 7
It and produce test body, then determine the transmittance haze of the test body, deduct from the transmittance haze of the test body above-mentioned transparent
It is worth obtained from the transmittance haze of sheet material.
With regard to the adjustment of the mist degree of 30 μm of dry coating of above-mentioned thickness, for example, can be by above-mentioned aqueous clear coating group
The adjustment of the content of the adjustment of mean diameter, the adjustment of colourant dispersion and the barium sulfate (B) of the barium sulfate (B) in compound
Etc. carrying out.
In addition, the thickness of the dry coating obtained with regard to the water transparent coating composition of the application present invention, from formation
The corrosion protection of dry coating, the transparency, gloss, the viewpoint such as resistance to water and moisture-proof considers, is 10～200 μm of scope
It is interior, in the range of preferably 20～100 μm, in the range of more preferably 25～60 μm.
In addition, in the present invention, with regard to the dry coating that obtained by the above-mentioned water transparent coating composition of application
Mist degree, considers from viewpoints such as the transparencys of dry coating for being formed, is less than 10%, and preferably less than 7%, more preferably
Less than 4%.
Embodiment
Hereinafter, Production Example, embodiment and comparative example are enumerated, the present invention is more particularly described.But the present invention is not only restricted to them.
In each case, " part " and " % " is namely based on quality criteria as long as no especially record.In addition, the thickness of film is based on solid
Change film.
The manufacture of overlay film formative resin (A)
The manufacture of aqueous alkide resin (a)
Production Example 1
Have in the reaction unit of thermometer, blender, heater, rectifying column and water separator to possessing, add season
Penta 119 parts of tetrol, 290 parts of linseed oil fatty acid, 106 parts of phthalic anhydride, 110 parts of benzoic acid, dibutyl tin oxide
1.16 parts and 28 parts of dimethylbenzene, then spend and are warming up to 230 DEG C in 3 hours, dehydration condensation is carried out at 230 DEG C about 8 hours,
Obtain resinous acid value about 6.0mgKOH/g, the alkyd varnish of solid content 95%.To in the alkyd varnish for being obtained
35 parts of maleic anhydride is added, maleylation is carried out at 190 DEG C and is reacted 2 hours, be then based on reducing pressure and having carried out solvent removal.Connect
Cooling for 140 DEG C, 90 minutes is spent and 9.5 parts of deionized water of addition mutually synthermal, has been carried out the open loop of maleic anhydride.Its
Afterwards, 1 hour in 140 DEG C of ripenings, 180 parts of ethylene glycol monobutyl ether is subsequently adding, it is subsequently added into 66 parts of triethylamine, so as to obtain
Transparent maleylation aqueous alkide resin (a-1) varnish of solid content 70%.The maleylation aqueous alkide resin for being obtained
(a-1) acid number is 52mgKOH/g, and oil content is 50%.In addition, the maleylation aqueous alkide resin (a-1) is divided in water
Dissipate the aqueous alkide resin of stabilized water dispersible.
The manufacture of aqueous acrylic resin
Production Example 2
There is the anti-of thermometer, thermostat, agitating device, reflux condenser, nitrogen ingress pipe and Dropping feeder to possessing
35 parts of propylene glycol monopropyl ether is added in answering container and 85 DEG C are warmed up to, then 4 hours is spent and Deca methyl methacrylate
30 parts, 20 parts of 2-EHA, 29 parts of n-butyl acrylate, 15 parts of acrylic acid 2- hydroxyl ethyl esters, 6 parts of acrylic acid, the third two
15 parts of alcohol list propyl ether and 2, the mixture of 2.3 parts of 2 '-azo double (2,4- methyl pentane nitriles), completion of dropwise addition post curing 1 hour.
Thereafter further spend the mixed of 1 part of 10 parts of 1 hour Deca propylene glycol monopropyl ether and 2,2 '-azo double (2,4- methyl pentane nitriles)
Compound, completion of dropwise addition post curing 1 hour.7.4 parts of diethanolamine is further added, the aqueous acrylamide of solid content 55% is obtained
Acid resin (Ac-1) solution.The acid number of the aqueous acrylic resin (Ac-1) for being obtained is 47mgKOH/g, hydroxyl value is
72mgKOH/g。
The manufacture of water transparent coating composition
Embodiment 1
By 71 parts of maleylation aqueous alkide resin varnish (a-1) obtained by Production Example 1 (50 parts of solid content),
" BARIFINE BF-20 " (trade name, Sakai chemical industrial company system, barium sulfate, mean diameter：0.03 μm, oil absorption：24mL/
100g) 70 parts and 129 parts of deionized water are mixed, and add bead, are then disperseed 60 minutes using paint shaker, are obtained
Obtained dispersible pigment dispersion (P1).
After bead is removed, in 270 parts of the dispersible pigment dispersion (P1) (120 parts of solid content) for being obtained, mix
71 parts of the maleylation alkyd varnish (a-1) (50 parts of solid content) that obtained by Production Example 1, " DICNATE 3111 " (commodity
Name, DIC company systems, desiccant, Co containing ratios 3%, 31%) 3.2 parts of solid content (1 part of solid content), " Nopco8034 " (commodity
Name, San Nopco Limited systems, defoamer, 100%) 1.5 parts of solid content (1.5 parts of solid content), " BYK-346 " (commodity
Name, BYK-Chemie company systems, surface conditioner, 52%) 0.6 part of solid content (0.3 part of solid content) are further added and depart from son
Water and triethylamine, so as to obtain the water transparent coating composition No.1 of pH8.9, coating solid concentration 40%.
Embodiment 2～23 and comparative example 1～6
In embodiment 1, formula composition is set to into the composition of the formula shown in table 1, in addition, similarly to Example 1
Operation, so as to obtain water transparent coating composition No.2～No.29.
Table 1
Table 1 (continuous 1)
Table 1 (continuous 2)
Table 1 (continuous 3)
(note) in table 1 means following.
(note 1) " Watersol S-352 "：Trade name, DIC company systems, epoxy alkyd resin, oil content 35%, solid
Thing 47%.
(note 2) " BARIFINE BF-10 "：Trade name, Sakai chemical industrial company system, barium sulfate, mean diameter：0.06 μm,
Oil absorption：20mL/100g.
(note 3) " BARIFINE BF-1 "：Trade name, Sakai chemical industrial company system, barium sulfate, mean diameter：0.05 μm,
Oil absorption：22mL/100g.
(note 4) " BARIFINE BF-40 "：Trade name, Sakai chemical industrial company system, barium sulfate, mean diameter：0.01 μm,
Oil absorption：40mL/100g.
(note 5) " BARIACE B-30 "：Trade name, Sakai chemical industrial company system, barium sulfate, mean diameter：0.3 μm, inhale
Oil mass：18mL/100g.
(note 6) " Neolight SA-200 "：Trade name, Zhu Yuan chemical industrial companies system, Calcium Carbonate, mean diameter：0.08
μm, oil absorption：32mL/100g.
(note 7) " Voncoat CG-8490 "：Trade name, DIC company systems, water-dispersible acrylic's resin, solid content
50%.
(note 8) " rack star 7200A "：Trade name, DIC company systems, water-dispersible acrylic's resin, solid content
41%.
(note 9) " Modepics 302 "：Trade name, Huang Chuan chemical industrial companies system, modified epoxy, solid content
33%.
(note 10) " DICNATE 1000W "：Trade name, DIC company systems, desiccant, Co containing ratios 3.5%, solid content
42%.
The making of bread board
Embodiment 24～48 and comparative example 7～12
On the cold-rolled steel sheet of 70mm × 150mm × 0.8mm for having carried out grinding and defat, using air-atomizing, press
According to the mode of the dry film thickness become described in table 2 below, it is coated with by the above embodiments 1～23 and comparative example 1 respectively
～6 water transparent coating composition No.1～No.29 for obtaining.Then, 7 days are placed so as to obtain with 23 DEG C, 65%RH
The bread board of cured coating film is defined on steel plate.
In addition, determining transmission " NDH 300A " (trade name, Japanese electricity Se industrial groups system, haze meter) is advanced with
In the PET film of mist degree, become the mode of the dry film thickness described in table 2 below according to thickness using air-atomizing, apply respectively
Water transparent coating composition No.1～the No.29 obtained by the above embodiments 1～23 and comparative example 1～6 is filled.Connect
, 7 days are placed so as to obtain the test thin film that cured coating film is defined in PET film with 23 DEG C, 65%RH.
Embodiment 49
On the cold-rolled steel sheet of 70mm × 150mm × 0.8mm for having carried out grinding and defat, using air-atomizing according to
Dry film thickness becomes 30 μm of mode and is coated with the water transparent coating composition No.1 obtained by the above embodiments 1.Then,
Using electric hot-air drying machine in 80 DEG C of force dryings 30 minutes, then 7 days are placed so as to obtain in steel plate with 23 DEG C, 65%RH
On define the bread board of cured coating film.
In addition, on the PET film that " NDH 300A " determines transmittance haze is advanced with, using air-atomizing according to dry
Dry thickness becomes 30 μm of mode and is coated with the water transparent coating composition No.1 obtained by the above embodiments 1.Then, make
Electricity consumption air drier in 80 DEG C of force dryings 30 minutes, then with 23 DEG C, 65%RH place 7 days it is thin in PET so as to obtain
The test thin film of cured coating film is defined on film.
Embodiment 50
On the cold-rolled steel sheet of 70mm × 150mm × 0.8mm for having carried out grinding and defat, using air-atomizing according to
Dry film thickness becomes 30 μm of mode and is coated with the water transparent coating composition No.8 obtained by the above embodiments 8.Then,
Using electric hot-air drying machine in 80 DEG C of force dryings 30 minutes, then 7 days are placed so as to obtain in steel plate with 23 DEG C, 65%RH
On define the bread board of cured coating film.
In addition, on the PET film that " NDH 300A " determines transmittance haze is advanced with, using air-atomizing according to dry
Dry thickness becomes 30 μm of mode and is coated with the water transparent coating composition No.8 obtained by the above embodiments 8.Then, make
Electricity consumption air drier in 80 DEG C of force dryings 30 minutes, then with 23 DEG C, 65%RH place 7 days it is thin in PET so as to obtain
The test thin film of cured coating film is defined on film.
The evaluation of bread board
Thin film is tested for each bread board for being obtained and respectively, carried out various tests.Evaluation result is shown in into table 2.
Test method
The transparency：For each test thin film, utilize " NDH 300A " to determine transmittance haze, subtract from the transmittance haze for being obtained
The transmittance haze of the PET film of measured in advance is gone, resulting value is set to into transmittance haze.Transmittance haze is more low then to represent saturating
Bright property is better.
Corrosion protection：For each bread board, crosscutting wound is applied to film using knife according to the mode for reaching base material, according to JIS
K 5600-7-1 (1999) " resistance to neutral salt spray " have carried out 120 hours salt-fog resistant tests for the crosscutting wound.According to from knife
The rust of wound, expanded width, are evaluated using following benchmark.Rust, the more little then corrosion protection of Breadth Maximum for expanding are more excellent, if commented
Valency is A～C, then corrosion protection is good.
A：Rust, expansion Breadth Maximum be apart from cutting part less than 1mm (one side),
B：It is more than 1mm and less than 2mm (one side) apart from cutting part that rust, the Breadth Maximum of expansion are,
C：It is more than 2mm and less than 3mm (one side) apart from cutting part that rust, the Breadth Maximum of expansion are,
D：It is more than 3mm and less than 5mm (one side) apart from cutting part that rust, the Breadth Maximum of expansion are,
E：Rust, expansion Breadth Maximum be apart from cutting part be more than 5mm (one side).
Pencil hardness：For each bread board, determine according to JIS K 5600-5-4 (1999) " scratching hardness (pencil method) "
Go out to apply the pencil hardness in face.If pencil hardness is more than B, then hardness is good.
Gloss：For each bread board, the mirror in painting face is determined according to JIS K 5600-4-7 (1999) " mirror surface luster "
Face glossiness (60 °).If the mirror surface luster (60 °) in the face of painting is more than 70, then gloss is good.
Resistance to water：Each bread board is immersed in into 23 DEG C of deionized water 48 hours, painting face is evaluated.
◎：It is good and have no problem,
○：Slightly it can be seen that low gloss is still as the level having no problem for product,
△：It can be seen that any one in expansion, low gloss,
×：Any one in expansion, low gloss is all big.
Moisture-proof：For each bread board, according to JIS K 5600-7-2 (1999) " moisture-proof (continuously condense method) ", with 48
Hour has continuously carried out anti-moisture test, then have rated the painting face outward appearance of each bread board by visual observation.
◎：Do not find that expansion etc. is abnormal in film
×：Find that expansion etc. is abnormal in film.
Table 2
Claims (6)
1. a kind of water transparent coating composition, it is characterised in which is to be formed comprising the overlay film containing aqueous alkide resin (a)
Property resin (A), barium sulfate (B) and water of the mean diameter less than 0.1 μm, and the content of the barium sulfate (B) are formed with overlay film
It is the water transparent coating composition in the range of 5～250 mass parts on the basis of property resin (A) 100 mass parts；By application
The water transparent coating composition and the mist degree of the dry coating of 30 μm of thickness that obtains is less than 10%.
2. water transparent coating composition according to claim 1, wherein, overlay film formative resin (A) further contains
Aqueous acrylic resin and/or aqueous epoxy resins.
3. water transparent coating composition according to claim 1 and 2, which further contains desiccant (C).
4. a kind of coated article, which has the water transparent coating composition any one of claims 1 to 3 on base material
Cured coating film.
5. coated article according to claim 4, wherein, base material is metal base.
6. a kind of manufacture method of water transparent coating composition, it is characterised in which is by application aqueous clear coating group
Compound and the mist degree of the dry coating of 30 μm of thickness that obtains are the manufacture method of less than 10% water transparent coating composition,
The water transparent coating composition is not enough comprising the overlay film formative resin (A) containing aqueous alkide resin (a), mean diameter
0.1 μm of barium sulfate (B) and water, and the content of the barium sulfate (B) is with 100 mass parts of overlay film formative resin (A) as base
It is accurate and be in the range of 5～250 mass parts；
The manufacture method of the water transparent coating composition includes following operation：Should using the aqueous alkide resin (a)
Barium sulfate (B) of the mean diameter less than 0.1 μm is disperseed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015185698A JP6485873B2 (en) | 2015-09-18 | 2015-09-18 | Water-based clear coating composition |
| JP2015-185698 | 2015-09-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106543871A true CN106543871A (en) | 2017-03-29 |
| CN106543871B CN106543871B (en) | 2021-03-02 |
Family
ID=58368037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610770651.8A Expired - Fee Related CN106543871B (en) | 2015-09-18 | 2016-08-30 | Aqueous clear coating composition |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6485873B2 (en) |
| CN (1) | CN106543871B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021001314A (en) * | 2019-06-18 | 2021-01-07 | ベック株式会社 | Aqueous coating material |
| JPWO2023100843A1 (en) * | 2021-11-30 | 2023-06-08 | ||
| WO2023182404A1 (en) * | 2022-03-25 | 2023-09-28 | 日東電工株式会社 | Composition for forming coating film, coating film, and article with coating film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01199676A (en) * | 1988-02-03 | 1989-08-11 | Mitsubishi Pencil Co Ltd | Production of gold flash-plated product |
| JP2014047385A (en) * | 2012-08-30 | 2014-03-17 | Nippon Steel & Sumitomo Metal | Water-soluble anti-rust agent and method for coating the same |
| CN104195589A (en) * | 2014-08-21 | 2014-12-10 | 成都新柯力化工科技有限公司 | Preparation method and application of nano barium sulphate |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5124363B2 (en) * | 1973-03-24 | 1976-07-23 | ||
| JPS58104964A (en) * | 1981-12-18 | 1983-06-22 | Dainippon Toryo Co Ltd | Water-based coating composition |
| JPS58108258A (en) * | 1981-12-21 | 1983-06-28 | Nippon Paint Co Ltd | Clear paint composition |
| JPS58189267A (en) * | 1982-04-30 | 1983-11-04 | Nippon Paint Co Ltd | Water-base coating composition and preparing same |
| JPH07179813A (en) * | 1993-12-24 | 1995-07-18 | Nippon Paint Co Ltd | Water-based coating composition |
| JP3831161B2 (en) * | 1999-11-15 | 2006-10-11 | 本田技研工業株式会社 | Water-based primer coating composition and painted product |
| JP4374486B2 (en) * | 2001-11-15 | 2009-12-02 | 関西ペイント株式会社 | Method for improving coating film smoothness of thermosetting liquid coating composition |
| CN102753628A (en) * | 2009-11-11 | 2012-10-24 | 比克化学股份有限公司 | Coating composition |
-
2015
- 2015-09-18 JP JP2015185698A patent/JP6485873B2/en active Active
-
2016
- 2016-08-30 CN CN201610770651.8A patent/CN106543871B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01199676A (en) * | 1988-02-03 | 1989-08-11 | Mitsubishi Pencil Co Ltd | Production of gold flash-plated product |
| JP2014047385A (en) * | 2012-08-30 | 2014-03-17 | Nippon Steel & Sumitomo Metal | Water-soluble anti-rust agent and method for coating the same |
| CN104195589A (en) * | 2014-08-21 | 2014-12-10 | 成都新柯力化工科技有限公司 | Preparation method and application of nano barium sulphate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017057356A (en) | 2017-03-23 |
| JP6485873B2 (en) | 2019-03-20 |
| CN106543871B (en) | 2021-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102404413B1 (en) | Aqueous coating composition and process of making the same | |
| JP5566351B2 (en) | Stable aqueous composite composition | |
| CN107849385B (en) | Peelable coating composition and method for making same | |
| JP5512981B2 (en) | Water-based paint composition and coating method using the composition | |
| WO2007125038A2 (en) | Method for the application of corrosion-resistant layers to metallic surfaces | |
| WO2008151997A1 (en) | Corrosion protection coatings | |
| CN100341962C (en) | Aqueous coating composition | |
| EP1919970A1 (en) | Polymer composition for corrosion protection | |
| CN106543871A (en) | Water transparent coating composition | |
| EP1844113A2 (en) | Method for applying integrated pre-treatment layers containing dicarboxylic acid olefin copolymers to metallic surfaces | |
| CN106010135B (en) | A kind of cathode electrophoresis dope | |
| BRPI0613519B1 (en) | aqueous coating composition | |
| JP5574935B2 (en) | Low odor styrenic polymer dispersion | |
| BR112020007747B1 (en) | COATING COMPOSITION, METHODS FOR APPLYING A COATING COMPOSITION AND FOR PREPARING A COATING COMPOSITION, AND, CURED COATING | |
| KR102253209B1 (en) | Coating composition, method of forming a coating film, method of manufacturing an article, and article | |
| CN104403563A (en) | Paint with good gloss retention | |
| BR112018074139B1 (en) | Aqueous dispersion, processes for preparing an aqueous dispersion and a coating, and aqueous coating composition | |
| EP3098270A1 (en) | Low-voc, low cost coalescent for certain aqueous polymeric dispersions | |
| DE19920141C1 (en) | Low-yellowing aqueous powder clearcoat dispersions, process for the production of multi-layer coatings and use of polyvalents, inorganic acids and / or oxalic acid here | |
| CN111378353A (en) | VOC (volatile organic compound) -emission-free environment-friendly UV gloss oil for coated iron and preparation method thereof | |
| JP2003286437A (en) | Ordinary temperature-drying, water-based coating serving as both undercoating and topcoating | |
| CN105602430B (en) | Pre- coating composition, UV cured articles and preparation method thereof | |
| JP2009191245A (en) | Water-based coating material | |
| CN106366897A (en) | Ambient cure compositions for making coatings having humidity and corrosion resistance and methods of use | |
| WO2024138597A1 (en) | Aqueous polymer dispersion and coating composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210302 |