CN106800874A - A kind of aqueous two-component polyurethane finish paint and preparation method thereof - Google Patents
A kind of aqueous two-component polyurethane finish paint and preparation method thereof Download PDFInfo
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- CN106800874A CN106800874A CN201611140252.XA CN201611140252A CN106800874A CN 106800874 A CN106800874 A CN 106800874A CN 201611140252 A CN201611140252 A CN 201611140252A CN 106800874 A CN106800874 A CN 106800874A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of aqueous two-component polyurethane finish paint and preparation method thereof, a kind of aqueous two-component polyurethane finish paint of the invention, the aqueous two-component polyurethane finish paint is made up of component A and B component, and the component A is composed of the following components by weight percentage：Deionized water 10 15%, wetting dispersing agent 0.5 1.2%, defoamer 0.1 0.5%, pigment 12 25%, water-based hydroxyl acrylic acid dispersion 58 70%, levelling agent 0.5 1%, ground wetting agent 0.1 0.5%, auxiliary rheological agents 0.1 0.5%；B component is isocyanate curing agent.VOC content of the invention is low, and still thickness is high, and chemical resistance is good, and paint film crosslink density is high, is difficult that heat rash appears.
Description
Technical field
The present invention relates to paint field, more particularly, to a kind of aqueous two-component polyurethane finish paint and preparation method thereof.
Background technology
Water paint is that, with various macromolecule resins as base-material, water is decentralized medium, is had than traditional solvent based coating
Low VOC (VOC) Drainage feature, is green, safety, Environmentally friendly coatings.China is manufacture type big country,
It is annual to use substantial amounts of oiliness two component polyurethane finish paint in plant equipment, rolling stock, steel construction and wood furniture industry,
Significantly pollute surrounding enviroment, waste petroleum resources.At present, aqueous two-component polyurethane finish paint has VOC and contains
Amount is high, easily heat rash appears for spraying, the shortcoming of paint film chemical-resistant difference, so being also difficult to popularization and application on a large scale.
Existing aqueous polyurethane coating with bi component, in order that curing agent is easier to add, it is general to be dropped using solvent dilution
The viscosity of low curing agent, this undoubtedly increased the VOC content of coating, although use hydrophilic isocyanate, but curing agent
Viscosity is higher, and the still thickness of the paint film for being formed is low, and spraying film thickness is easy for that heat rash appears more than 60 μm, and paint film is resistance to
Chemicals poor performance.
Curing agent mainly has to the influence factor reacted：1st, the compatibility of curing agent and water-based hydroxyl acrylic acid dispersion,
2nd, the application viscosity of curing agent.
Isocyanate curing agent is the key component of aqueous polyurethane coating with bi component formula, and it is with water-based hydroxyl acrylic acid
It is the fine or not key of final paint film property that dispersion is fast and effectively reacted.The selection of hydrophilic polyisocyanate so that solidification
Agent is more preferable with the compatibility of water-based hydroxyl acrylic acid dispersion, and curing agent is easier dispersion, by simple hand operated mixing, you can
It is well mixed, but the viscosity of curing agent is general higher, and suitable viscosity need to be diluted to using solvent when using, and improves aqueous
The VOC content of coating, the still thickness of paint film for being formed is low, and spraying film thickness is easy for that heat rash appears more than 60 μm, and parent
The introducing of water base group reduces the crosslink density of paint film, influences the chemical-resistant of paint film.
Hydrophobicity polyisocyanates, the viscosity of product is low, and the paint film crosslink density of formation is high, and chemical-resistant is good, and
The still thickness of paint film is high, is difficult that heat rash appears, but such curing agent only have diluted with a large amount of solvents after could use aqueous
In system, therefore improve the solvent load of water paint.Hydrophobicity polyisocyanates is applied for aqueous two-component polyurethane
One of possible way of material is the viscosity that curing agent is greatly reduced, so as to be dispersed in water curing agent under low shear conditions
When, less particle diameter can be formed.And the asymmetric isocyanate trimer of hydrophobicity low viscosity, 100% contains admittedly, and viscosity is less than
1000mPas, can be added directly into aqueous coating system, and the paint film thickness that is formed is applied and is difficult that heat rash appears, crosslink density
High, chemical-resistant is good, but hand operated mixing still has poor compatibility when actually used.
At present, a kind of aqueous two-component polyurethane finish paint that still thickness is high, chemical resistance is good and its preparation are lacked
Method.
The content of the invention
Regarding the issue above, the present invention provides a kind of with still thickness is high, chemical resistance is good
Aqueous two-component polyurethane finish paint and preparation method thereof.
To reach above-mentioned purpose, present invention employs following technical proposal：A kind of aqueous two-component polyurethane of the invention
Finish paint, the aqueous two-component polyurethane finish paint is made up of component A and B component, and the component A is by weight percentage by with the following group
It is grouped into：
B component is isocyanate curing agent.
Further, the weight ratio of the component A and B component is 4-6：1.
Further, the curing agent is hydrophilic polyisocyanate and the asymmetric isocyanate trimerization of hydrophobicity low viscosity
The mixture of body.
Further, the matter of the hydrophilic polyisocyanate and the asymmetric isocyanate trimer of hydrophobicity low viscosity
Amount is than being 1-4:1.
Further, the hydrophilic polyisocyanate is the WL72-100 of Asahi Chemical Industry, and the hydrophobicity low viscosity is not right
Isocyanate trimer is called the XP 2840 of Cohan wound.
The preparation method of aqueous two-component polyurethane finish paint of the present invention, comprises the following steps：
(1) component A is prepared：Dispersion is equal during deionized water, wetting dispersing agent, defoamer, pigment are sequentially added into pot of getting the raw materials ready
It is even, fineness≤15 μm are ground to, aqueous color paste is obtained, the aqueous color paste is added in water-based hydroxyl acrylic acid dispersion,
Then levelling agent, ground wetting agent and auxiliary rheological agents are sequentially added, viscosity are adjusted to the 60-90s of 25 DEG C -4 glasss of viscosity of painting,
It is made component A；
(2) curing agent B component is prepared；
(3) component A is well mixed with B component when constructing, and is diluted with water to the viscosity for applying that -4 glasss is 18-23s.
Further, in step (2), the B component is that the curing agent is hydrophilic polyisocyanate and hydrophobicity
The mixture of the asymmetric isocyanate trimer of low viscosity, the hydrophilic polyisocyanate is asymmetric with hydrophobicity low viscosity different
The mass ratio of cyanate tripolymer is 1-4:1.
Beneficial effect：VOC content of the invention is low, and still thickness is high, and chemical resistance is good.Paint film crosslink density is high,
It is difficult that heat rash appears.
Compared with prior art, the invention has the advantages that:
(1) hydrophilic polyisocyanate is mixed according to a certain percentage with the asymmetric isocyanate trimer of hydrophobicity low viscosity
Spell, the curing agent viscosity of formation is low, be not required to add extra cosolvent, reacted with water-based hydroxyl acrylic acid dispersion, with dispersion
The compatibility of body is good, and hand operated mixing can be well mixed, and the paint film thickness of dry film for being formed reaches 100 μm heat rash appears, drop
Low construction risk, and the VOC content of system is low, and paint film crosslink density is high, chemical-resistant is good.
(2) hydrophilic polyisocyanate increased the water solubility of curing agent so that curing agent and water-based hydroxyl acrylic acid point
More preferably, hand operated mixing can be well mixed for the compatibility of a prose style free from parallelism.The viscosity of the asymmetric isocyanate trimer of hydrophobicity low viscosity
Low, the paint film crosslink density of formation is high, and the still thickness of paint film is high, is difficult that heat rash appears.
Specific embodiment
Following examples only exist in illustrative purpose, without being intended to limit the scope of the present invention.
Embodiment 1
A kind of aqueous two-component polyurethane finish paint of the invention, the aqueous two-component polyurethane finish paint is by component A and B groups
It is grouped into, the component A is composed of the following components by weight percentage：
B component is isocyanate curing agent.
The weight ratio of the component A and B component is 4：1.
The curing agent is the mixing of hydrophilic polyisocyanate and the asymmetric isocyanate trimer of hydrophobicity low viscosity
Thing.
The hydrophilic polyisocyanate is 1 with the mass ratio of the asymmetric isocyanate trimer of hydrophobicity low viscosity:1.
The hydrophilic polyisocyanate is the WL72-100 of Asahi Chemical Industry, the asymmetric isocyanates of hydrophobicity low viscosity
Tripolymer is the XP 2840 of Cohan wound.
The preparation method of aqueous two-component polyurethane finish paint of the present invention, comprises the following steps：
(1) component A is prepared：Dispersion is equal during deionized water, wetting dispersing agent, defoamer, pigment are sequentially added into pot of getting the raw materials ready
It is even, fineness≤15 μm are ground to, aqueous color paste is obtained, the aqueous color paste is added in water-based hydroxyl acrylic acid dispersion,
Then levelling agent, ground wetting agent and auxiliary rheological agents are sequentially added, viscosity is adjusted to the 60s of 25 DEG C -4 glasss of viscosity of painting, system
Into component A；
(2) curing agent B component is prepared；The B component is group of the WL72-100 curing agent with two kinds of the curing agent of XP 2840
Close.The mass ratio of the WL72-100 and XP 2840 is 1:1.
(3) component A is well mixed with B component when constructing, and is diluted with water to the viscosity of 18s.The component A and B groups
The mass ratio for dividing is 4：1.The viscosity is -4 glasss of viscosity of painting.
Embodiment 2
Embodiment 2 is with the difference of embodiment 1：
A kind of aqueous two-component polyurethane finish paint of the invention, the aqueous two-component polyurethane finish paint is by component A and B groups
It is grouped into, the component A is composed of the following components by weight percentage：
B component is isocyanate curing agent.
The weight ratio of the component A and B component is 6：1.
The hydrophilic polyisocyanate is 3 with the mass ratio of the asymmetric isocyanate trimer of hydrophobicity low viscosity:1.
The hydrophilic polyisocyanate is the WL72-100 of Asahi Chemical Industry, and the asymmetric isocyanate trimer of hydrophobicity low viscosity is
The XP 2840 of Cohan wound.
The preparation method of aqueous two-component polyurethane finish paint of the present invention, comprises the following steps：
(1) component A is prepared：Dispersion is equal during deionized water, wetting dispersing agent, defoamer, pigment are sequentially added into pot of getting the raw materials ready
It is even, fineness≤15 μm are ground to, aqueous color paste is obtained, the aqueous color paste is added in water-based hydroxyl acrylic acid dispersion,
Then levelling agent, ground wetting agent and auxiliary rheological agents are sequentially added, viscosity is adjusted to the 90s of 25 DEG C -4 glasss of viscosity of painting, system
Into component A；
(2) curing agent B component is prepared；The B component is group of the WL72-100 curing agent with two kinds of the curing agent of XP 2840
Close.The mass ratio of the WL72-100 and XP 2840 is 3:1.
(3) component A is well mixed with B component when constructing, and is diluted with water to the viscosity of 23s.The component A and B groups
The mass ratio for dividing is 6：1.The viscosity is -4 glasss of viscosity of painting.
Embodiment 3
Embodiment 3 is with the difference of embodiment 1：
A kind of aqueous two-component polyurethane finish paint of the invention, the aqueous two-component polyurethane finish paint is by component A and B groups
It is grouped into, the component A is composed of the following components by weight percentage：
B component is isocyanate curing agent.
The weight ratio of the component A and B component is 5：1.
The hydrophilic polyisocyanate is 4 with the mass ratio of the asymmetric isocyanate trimer of hydrophobicity low viscosity:1.
The hydrophilic polyisocyanate is the WL72-100 of Asahi Chemical Industry, and the asymmetric isocyanate trimer of hydrophobicity low viscosity is
The XP 2840 of Cohan wound.
The preparation method of aqueous two-component polyurethane finish paint of the present invention, comprises the following steps：
(1) component A is prepared：Dispersion is equal during deionized water, wetting dispersing agent, defoamer, pigment are sequentially added into pot of getting the raw materials ready
It is even, fineness≤15 μm are ground to, aqueous color paste is obtained, the aqueous color paste is added in water-based hydroxyl acrylic acid dispersion,
Then levelling agent, ground wetting agent and auxiliary rheological agents are sequentially added, viscosity is adjusted to the 80s of 25 DEG C -4 glasss of viscosity of painting, system
Into component A；
(2) curing agent B component is prepared；The B component is group of the WL72-100 curing agent with two kinds of the curing agent of XP 2840
Close.The mass ratio of the WL72-100 and XP 2840 is 4:1.
(3) component A is well mixed with B component when constructing, and is diluted with water to the viscosity of 21s.The component A and B groups
The mass ratio for dividing is 5：1.The viscosity is -4 glasss of viscosity of painting.
Embodiment 4
Embodiment 4 is with the difference of embodiment 1：
A kind of aqueous two-component polyurethane finish paint of the invention, the aqueous two-component polyurethane finish paint is by component A and B groups
It is grouped into, the component A is composed of the following components by weight percentage：
B component is isocyanate curing agent.
The weight ratio of the component A and B component is 4：1.
Experiment 1
By carrying out performance detection to aqueous two-component polyurethane finish paint, the performance indications of product not only meet《HG/T
4570-2013 automobile water-based paints》In requirement to finish paint, also meet《GB/T 23999-2009 indoor decorating water
Property woodwork coating》In requirement to finishing finish paint.The environmental index of product meets《HJ 2537-2014 environmental labelling product skills
Art requirement water paint》Requirement to limits of harmful substances in industrial coating.As shown in table 1：
Table 1
As shown in Table 1, VOC content of the invention is less than 70g/L, and still thickness >=100 μm, chemical resistance is good, resistance to
Soda acid performance is good, it is adaptable to the industry-by-industry such as plant equipment, rolling stock, steel construction and wood furniture.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.
Claims (7)
1. a kind of aqueous two-component polyurethane finish paint, it is characterised in that：The aqueous two-component polyurethane finish paint is by component A and B
Component is constituted, and the component A is composed of the following components by weight percentage：
B component is isocyanate curing agent.
2. aqueous two-component polyurethane finish paint according to claim 1, it is characterised in that：The weight of the component A and B component
Amount is than being 4-6：1.
3. aqueous two-component polyurethane finish paint according to claim 1, it is characterised in that：The curing agent is that hydrophily is more
The mixture of isocyanates and the asymmetric isocyanate trimer of hydrophobicity low viscosity.
4. aqueous two-component polyurethane finish paint according to claim 3, it is characterised in that：The hydrophilic polyisocyanate
It is 1-4 with the mass ratio of the asymmetric isocyanate trimer of hydrophobicity low viscosity:1.
5. aqueous two-component polyurethane finish paint according to claim 4, it is characterised in that：The hydrophilic polyisocyanate
It is the WL72-100 of Asahi Chemical Industry, the asymmetric isocyanate trimer of hydrophobicity low viscosity is the XP 2840 of Cohan wound.
6. the preparation method of the aqueous two-component polyurethane finish paint described in any one of claim 1 to 5, it is characterised in that including such as
Lower step：
(1) component A is prepared：It is uniformly dispersed during deionized water, wetting dispersing agent, defoamer, pigment are sequentially added into pot of getting the raw materials ready, is ground
Fineness≤15 μm are milled to, aqueous color paste is obtained, the aqueous color paste is added in water-based hydroxyl acrylic acid dispersion, Ran Houyi
Secondary addition levelling agent, ground wetting agent and auxiliary rheological agents, viscosity are adjusted to the 60-90s of 25 DEG C -4 glasss of viscosity of painting, are made A
Component；
(2) curing agent B component is prepared；
(3) component A is well mixed with B component when constructing, and is diluted with water to the viscosity for applying that -4 glasss is 18-23s.
7. the preparation method of aqueous two-component polyurethane finish paint according to claim 6, it is characterised in that：In step (2)
In, the B component is that the curing agent is hydrophilic polyisocyanate and the asymmetric isocyanate trimer of hydrophobicity low viscosity
Mixture, the mass ratio of the hydrophilic polyisocyanate and the asymmetric isocyanate trimer of hydrophobicity low viscosity is 1-4:
1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611140252.XA CN106800874A (en) | 2016-12-12 | 2016-12-12 | A kind of aqueous two-component polyurethane finish paint and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611140252.XA CN106800874A (en) | 2016-12-12 | 2016-12-12 | A kind of aqueous two-component polyurethane finish paint and preparation method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107418414A (en) * | 2017-07-06 | 2017-12-01 | 浩力森涂料（上海）有限公司 | Aqueous finish paint coating composition for bus height appearance and preparation method thereof |
| CN107955506A (en) * | 2017-10-31 | 2018-04-24 | 河北晨阳工贸集团有限公司 | White finish paint is set with and its preparation method and application |
| CN108707406A (en) * | 2018-06-15 | 2018-10-26 | 成都澳贝龙科技发展有限公司 | A kind of baking-type aqueous double-component polyurethane varnish and its application method and purposes |
| CN108795176A (en) * | 2018-05-24 | 2018-11-13 | 兰州科天环保节能科技有限公司 | A kind of thick painting mirror effect two-component clear finish that heat rash appears |
| CN108977032A (en) * | 2018-07-26 | 2018-12-11 | 雅图高新材料有限公司 | A kind of aqueous dual-component bloom finishing coat and preparation method thereof for the helmet |
| CN109161323A (en) * | 2018-08-23 | 2019-01-08 | 河北晨阳工贸集团有限公司 | A kind of aqueous thick-film type is from poly- paint of dry two-component third and preparation method thereof |
| CN110922877A (en) * | 2019-12-13 | 2020-03-27 | 广东四方威凯新材料有限公司 | Waterborne polyurethane coating and preparation method thereof |
| CN111019500A (en) * | 2019-11-12 | 2020-04-17 | 洛阳双瑞防腐工程技术有限公司 | Water-based acrylic polyurethane finish paint for rail transit and preparation method thereof |
| CN111500177A (en) * | 2020-05-15 | 2020-08-07 | 清远市实创涂料科技有限公司 | Two-component water-based finish paint based on oily polyisocyanate curing agent and preparation method thereof |
| CN112608669A (en) * | 2020-12-18 | 2021-04-06 | 株洲华联高科有限责任公司 | Water-based double-component polyurethane-based colored paint for rail transit vehicles and preparation method thereof |
| CN115851093A (en) * | 2022-12-12 | 2023-03-28 | 浩力森化学科技（江苏）有限公司 | Ultra-low VOC (volatile organic compound) high-gloss polyurethane finish paint and preparation method thereof |
| CN116656221A (en) * | 2022-02-21 | 2023-08-29 | 广东华润涂料有限公司 | Two-component aqueous coating composition and coated article made therefrom |
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| CN101600750A (en) * | 2006-09-22 | 2009-12-09 | 佩什托普法国公司 | Polyisocyantates composition is used to have the purposes of coating of the brightness of raising |
| CN105969151A (en) * | 2016-07-21 | 2016-09-28 | 河北晨阳工贸集团有限公司 | Water-based acrylic polyurethane paint and preparation method thereof |
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| CN101600750A (en) * | 2006-09-22 | 2009-12-09 | 佩什托普法国公司 | Polyisocyantates composition is used to have the purposes of coating of the brightness of raising |
| CN105969151A (en) * | 2016-07-21 | 2016-09-28 | 河北晨阳工贸集团有限公司 | Water-based acrylic polyurethane paint and preparation method thereof |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107418414A (en) * | 2017-07-06 | 2017-12-01 | 浩力森涂料（上海）有限公司 | Aqueous finish paint coating composition for bus height appearance and preparation method thereof |
| CN107955506A (en) * | 2017-10-31 | 2018-04-24 | 河北晨阳工贸集团有限公司 | White finish paint is set with and its preparation method and application |
| CN108795176A (en) * | 2018-05-24 | 2018-11-13 | 兰州科天环保节能科技有限公司 | A kind of thick painting mirror effect two-component clear finish that heat rash appears |
| CN108707406A (en) * | 2018-06-15 | 2018-10-26 | 成都澳贝龙科技发展有限公司 | A kind of baking-type aqueous double-component polyurethane varnish and its application method and purposes |
| CN108977032A (en) * | 2018-07-26 | 2018-12-11 | 雅图高新材料有限公司 | A kind of aqueous dual-component bloom finishing coat and preparation method thereof for the helmet |
| CN109161323A (en) * | 2018-08-23 | 2019-01-08 | 河北晨阳工贸集团有限公司 | A kind of aqueous thick-film type is from poly- paint of dry two-component third and preparation method thereof |
| CN111019500A (en) * | 2019-11-12 | 2020-04-17 | 洛阳双瑞防腐工程技术有限公司 | Water-based acrylic polyurethane finish paint for rail transit and preparation method thereof |
| CN110922877A (en) * | 2019-12-13 | 2020-03-27 | 广东四方威凯新材料有限公司 | Waterborne polyurethane coating and preparation method thereof |
| CN111500177A (en) * | 2020-05-15 | 2020-08-07 | 清远市实创涂料科技有限公司 | Two-component water-based finish paint based on oily polyisocyanate curing agent and preparation method thereof |
| CN112608669A (en) * | 2020-12-18 | 2021-04-06 | 株洲华联高科有限责任公司 | Water-based double-component polyurethane-based colored paint for rail transit vehicles and preparation method thereof |
| CN116656221A (en) * | 2022-02-21 | 2023-08-29 | 广东华润涂料有限公司 | Two-component aqueous coating composition and coated article made therefrom |
| CN115851093A (en) * | 2022-12-12 | 2023-03-28 | 浩力森化学科技（江苏）有限公司 | Ultra-low VOC (volatile organic compound) high-gloss polyurethane finish paint and preparation method thereof |
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Application publication date: 20170606 |