CN107057540A - A kind of melamine plate is with exempting from polishing unsaturated polyester coating and preparation method thereof - Google Patents

A kind of melamine plate is with exempting from polishing unsaturated polyester coating and preparation method thereof Download PDF

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Publication number
CN107057540A
CN107057540A CN201710019047.6A CN201710019047A CN107057540A CN 107057540 A CN107057540 A CN 107057540A CN 201710019047 A CN201710019047 A CN 201710019047A CN 107057540 A CN107057540 A CN 107057540A
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CN
China
Prior art keywords
unsaturated polyester
polishing
melamine plate
polyester coating
exempting
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
CN201710019047.6A
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Chinese (zh)
Inventor
李华君
陈寿生
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Chengdu Zhan Chen Coating Co Ltd
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Chengdu Zhan Chen Coating Co Ltd
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Priority to CN201710019047.6A priority Critical patent/CN107057540A/en
Publication of CN107057540A publication Critical patent/CN107057540A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D167/00Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/06Unsaturated polyesters having carbon-to-carbon unsaturation
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

It is made up of the invention discloses a kind of melamine plate with polishing unsaturated polyester coating and preparation method thereof, the melamine plate is exempted from polishing unsaturated polyester coating is exempted from following raw materials:Unsaturated polyester resin, alkyd resin, toughener, dispersant, defoamer, levelling agent, anti-settling auxiliary agent, polymerization inhibitor, grinding auxiliary agent, titanium dioxide, inorganic filler, active solvent and adhesion promoter;The melamine plate that the present invention is obtained solves the adhesion problem for unsaturated polyester (UP) polyester coating of directly being constructed when melamine plate is not polished with polishing unsaturated polyester coating hardness height, surface good leveling property, adhesive force is exempted from by force;The production efficiency in melamine plate production and the convenience of construction are improved simultaneously;The melamine plate that the present invention is provided is simple to operate with the preparation method for exempting from polishing unsaturated polyester coating, and it is convenient to prepare, and is adapted to industrialization and mass produces.

Description

A kind of melamine plate is with exempting from polishing unsaturated polyester coating and preparation method thereof
Technical field
The present invention relates to paint field, and in particular to a kind of melamine plate is with exempting from polishing unsaturated polyester coating and its system Preparation Method.
Background technology
Unsaturated polyester resin has good low temperature curing properties, it has also become the rising coating tree of a class Fat, China starts to be applied in furniture application in 1960s, the eighties, with the raising of China's economic level, Family and office furniture demand are increased, high glaze sectional furniture is developed rapidly, is made of unsaturated polyester resin Woodenware priming paint, improve the sagging phenomenon of vertical application, with good outward appearance, splendid transparency, higher hardness and Richness, therefore unsaturated polyester varnish starts largely to use in furniture application.
The maximum feature of unsaturated polyester varnish is that cross-linking monomer styrene in device has the dual of solvent and film forming matter concurrently Effect, therefore unsaturated polyester varnish belongs to high solid coating, does not have solvent volatilization during without diluent during coating film forming, paint Middle component almost all film forming, with paint with that may have few weight phenylethylene to volatilize before and after japanning, coating conversion ratio is high, covers with paint, lacquer, colour wash, etc. one It is secondary just to form thicker paint film, applied with reducing construction in the number of plies, short construction period, and work progress almost without pernicious gas Volatilization, environmental pollution is few.
But paint film shrinkage factor is higher when solidifying due to unsaturated polyester varnish, the adhesive force of base material is easily gone wrong, especially It is on the surface of melamine plate.Because melamine plate compact structure, smooth, releasing agent may be contained, surface tension is low, one As unsaturated polyester (UP) white background apply not get on, or very poor, easy to crack, delamination of coating rear paint film adhesion, do not reach application will Ask, if coating shedding will be made by tapping or colliding, if furnitur manufacturer will result in loss, reached using such sheet material Less than quality requirement;And melamine plate with PU gloss varnish when being constructed, because solid content is not high, 60% only up to be reached, is applied Man-hour requirement is added after PU curing agent and PU diluents, product film forming, is had substantial amounts of solvent volatilization, is caused to pollute environment, no Enough environmental protection.
All the time, in furniture in the market, unsaturated polyester coating with its large arch dam and excellent fillibility in occupation of Many market shares, the application of melamine plate greatly improves the production efficiency of furniture industry, but because its is too high Case hardness has larger obstruction for the grinding process of base material, greatly have impact on the convenience of construction, researches and develops an energy The unsaturated polyester coating for being enough attached directly to not polish on melamine plate is imperative.
The content of the invention
It is an object of the invention to overcome the shortcoming of prior art unsaturated poly- with polishing is exempted from there is provided a kind of melamine plate Ester paint, coating hardness height, surface good leveling property, adhesive force are strong, can effectively increase Furniture Factory and use melamine plate Operating efficiency.
, should it is a further object of the present invention to provide the melamine plate preparation method for exempting from polishing unsaturated polyester coating Method preparation manipulation is simple, and it is convenient to prepare, and is adapted to industrialization large-scale production.
The purpose of the present invention is achieved through the following technical solutions:A kind of melamine plate is applied with polishing unsaturated polyester (UP) is exempted from Material, it is made up of the raw material of following weight parts:
Unsaturated polyester resin:45~60;Alkyd resin:2~10;
Toughener:3~15;Dispersant:0.5~5;
Defoamer:0.1~1;Levelling agent:0.2~1;
Anti-settling auxiliary agent:0.5~5;Polymerization inhibitor:0.01~0.1;
Grinding auxiliary agent:2~10;Titanium dioxide:5~15;
Inorganic filler:16~35;Active solvent:3~10;
Adhesion promoter:1~8.
Further, described inorganic filler is the mixture of coarse whiting, talcum powder and barium sulfate, and weight ratio is 1:1~ 2:5~10.
Further, described unsaturated polyester resin is Pneumoperitoneum pressure resin;The alkyd resin is castor Sesame oil alkyd resin.
Further, described toughener is response type epoxy toughening agent;Described dispersant is to contain close pigment group HMW silane copolymer.
Further, described defoamer is acryl-based antifoaming agent;The levelling agent is modified propylene acids levelling agent.
Further, described anti-settling auxiliary agent is aerosil;The polymerization inhibitor is hydroquinones.
Further, described grinding auxiliary agent is zinc stearate, and the titanium dioxide is rutile titanium-type titanium dioxide.
Further, described active solvent is styrene;The adhesion promoter is amino silane compounds.
A kind of melamine plate use exempts from the preparation method of polishing unsaturated polyester coating, and the preparation method is:By insatiable hunger With polyester resin, alkyd resin, toughener, dispersant, levelling agent, defoamer, polymerization inhibitor, adhesion promoter and 2/3 volume Active solvent be added in mixer, adjustment rotating speed is sequentially added anti-settling after 8~15min of stirring to 700~800rad/min Auxiliary agent, titanium dioxide, inorganic filler and grinding auxiliary agent, adjustment rotating speed to 950~1100rad/min disperse 10~20min extremely at a high speed Grain fineness≤55 μm, add residual activity solvent, and adjustment rotating speed to 700~800rad/min stirs, that is, trimerization is made Cyanamide plate with exempt from polish unsaturated polyester coating.
The present invention has advantages below:Polishing unsaturated polyester coating hardness is high, table with exempting from for the melamine plate that the present invention is obtained Face good leveling property, adhesive force are strong, solve the attached of unsaturated polyester (UP) polyester coating of directly being constructed when melamine plate is not polished Put forth effort problem;The melamine plate that the present invention is obtained is improved in melamine plate production with polishing unsaturated polyester coating is exempted from Production efficiency and the convenience of construction, solve melamine plate due to grinding process of the too high case hardness for base material When the problem of there is larger obstruction;The melamine plate that the present invention is provided is grasped with the preparation method for exempting from polishing unsaturated polyester coating Make simple, it is convenient to prepare, be adapted to industrialization large-scale production.
Embodiment
With reference to embodiment, the present invention will be further described, and protection scope of the present invention is not limited to following institute State:
Embodiment 1:A kind of melamine plate is with unsaturated polyester coating of polishing is exempted from, and it is made up of the raw material of following weight parts:
Dry type unsaturated polyester resin: 45;Ricinoleyl alcohol acid resin: 2;
Response type epoxy toughening agent: 3;Acryl-based antifoaming agent: 0.1;
Modified propylene acids levelling agent: 0.2;Amino silane compounds: 1;
Aerosil: 0.5;Hydroquinones: 0.01;
Zinc stearate: 2;Rutile titanium-type titanium dioxide: 5;
Inorganic filler: 16;Styrene: 3;
HMW silane copolymer containing close pigment group: 0.5;
Wherein, described inorganic filler is the mixture of coarse whiting, talcum powder and barium sulfate, and weight ratio is 1:1:5.
Above-mentioned melamine plate with exempt from polish unsaturated polyester coating preparation method be:By dry type unsaturated polyester (UP) tree Fat, ricinoleyl alcohol acid resin, response type epoxy toughening agent, the HMW silane copolymer containing close pigment group, modified third Diluted acid class levelling agent, acryl-based antifoaming agent, hydroquinones, the styrene of amino silane compounds and 2/3 volume are added to and stirred Mix in machine, adjustment rotating speed to 700rad/min, sequentially added after stirring 8min aerosil, rutile titanium-type titanium dioxide, Inorganic filler and zinc stearate, scattered 10min, to 55 μm of grain fineness, adds remaining benzene to adjustment rotating speed to 950rad/min at a high speed Ethene, adjustment rotating speed stirs to 700rad/min, that is, melamine plate is made with exempting from polishing unsaturated polyester coating.
Embodiment 2:A kind of melamine plate with exempt from polish unsaturated polyester coating, it by following weight parts raw material group Into:
Dry type unsaturated polyester resin: 60;Ricinoleyl alcohol acid resin: 10;
Response type epoxy toughening agent: 15;Acryl-based antifoaming agent: 1;
Modified propylene acids levelling agent:1;Amino silane compounds: 8;
Aerosil: 5;Hydroquinones: 0.1;
Zinc stearate: 10;Rutile titanium-type titanium dioxide: 15;
Inorganic filler: 35;Styrene: 10;
HMW silane copolymer containing close pigment group: 5;
Wherein, described inorganic filler is the mixture of coarse whiting, talcum powder and barium sulfate, and weight ratio is 1:2:10.
Above-mentioned melamine plate with exempt from polish unsaturated polyester coating preparation method be:By dry type unsaturated polyester (UP) tree Fat, ricinoleyl alcohol acid resin, response type epoxy toughening agent, the HMW silane copolymer containing close pigment group, modified third Diluted acid class levelling agent, acryl-based antifoaming agent, hydroquinones, the styrene of amino silane compounds and 2/3 volume are added to and stirred Mix in machine, adjustment rotating speed to 800rad/min, sequentially added after stirring 15min aerosil, rutile titanium-type titanium dioxide, Inorganic filler and zinc stearate, scattered 20min, to 45 μm of grain fineness, is added remaining adjustment rotating speed to 1100rad/min at a high speed Styrene, adjustment rotating speed stirs to 800rad/min, that is, melamine plate is made with exempting from polishing unsaturated polyester coating.
Embodiment 3:A kind of melamine plate with exempt from polish unsaturated polyester coating, it by following weight parts raw material group Into:
Dry type unsaturated polyester resin: 52;Ricinoleyl alcohol acid resin: 6;
Response type epoxy toughening agent: 9;Acryl-based antifoaming agent: 0.6;
Modified propylene acids levelling agent: 0.6;Amino silane compounds: 4;
Aerosil: 2.7;Hydroquinones: 0.05;
Zinc stearate: 6;Rutile titanium-type titanium dioxide: 10;
Inorganic filler: 25;Styrene: 6;
HMW silane copolymer containing close pigment group: 2.5;
Wherein, described inorganic filler is the mixture of coarse whiting, talcum powder and barium sulfate, and weight ratio is 1:1.5:7.
Above-mentioned melamine plate with exempt from polish unsaturated polyester coating preparation method be:By dry type unsaturated polyester (UP) tree Fat, ricinoleyl alcohol acid resin, response type epoxy toughening agent, the HMW silane copolymer containing close pigment group, modified third Diluted acid class levelling agent, acryl-based antifoaming agent, hydroquinones, the styrene of amino silane compounds and 2/3 volume are added to and stirred Mix in machine, adjustment rotating speed to 740rad/min, sequentially added after stirring 12min aerosil, rutile titanium-type titanium dioxide, Inorganic filler and zinc stearate, scattered 15min, to 30 μm of grain fineness, is added remaining adjustment rotating speed to 1000rad/min at a high speed Styrene, adjustment rotating speed stirs to 780rad/min, that is, melamine plate is made with exempting from polishing unsaturated polyester coating.
Embodiment 4:A kind of melamine plate with exempt from polish unsaturated polyester coating, it by following weight parts raw material group Into:
Dry type unsaturated polyester resin: 50;Ricinoleyl alcohol acid resin: 8;
Response type epoxy toughening agent: 5;Acryl-based antifoaming agent: 0.8;
Modified propylene acids levelling agent: 0.3;Amino silane compounds: 7;
Aerosil:4.5;Hydroquinones: 0.07;
Zinc stearate: 3;Rutile titanium-type titanium dioxide: 6;
Inorganic filler: 20;Styrene: 5;
HMW silane copolymer containing close pigment group: 0.9;
Wherein, described inorganic filler is the mixture of coarse whiting, talcum powder and barium sulfate, and weight ratio is 1:2:6.
Above-mentioned melamine plate with exempt from polish unsaturated polyester coating preparation method be:By dry type unsaturated polyester (UP) tree Fat, ricinoleyl alcohol acid resin, response type epoxy toughening agent, the HMW silane copolymer containing close pigment group, modified third Diluted acid class levelling agent, acryl-based antifoaming agent, hydroquinones, the styrene of amino silane compounds and 2/3 volume are added to and stirred Mix in machine, adjustment rotating speed to 780rad/min, sequentially added after stirring 14min aerosil, rutile titanium-type titanium dioxide, Inorganic filler and zinc stearate, scattered 18min, to 50 μm of grain fineness, is added remaining adjustment rotating speed to 1050rad/min at a high speed Styrene, adjustment rotating speed stirs to 720rad/min, that is, melamine plate is made with exempting from polishing unsaturated polyester coating.
Melamine plate obtained by above-mentioned 1-4 embodiments is with the outward appearance for unsaturated polyester coating of exempting to polish:Thick white liquid Surface drying time≤60 minute of film after body, normal spraying application;25 DEG C are done solid work time 24h, hardness >=H;Surface good leveling property; Adhesive force:One-level.
Unsaturated polyester resin in above-mentioned 1-4 embodiments is from Chengdu new material Science and Technology Ltd. of Jie Shengshu nations SPE 2907B-1, ricinoleyl alcohol acid resin selects the RV8533 of Xiamen Ai Kema Chemical Co., Ltd.s, and toughener is from Guangzhou sky The maleic anhydride grafted polyethylene of Chemical Co., Ltd. is moulded, dispersant is from Tag Polymer Sciences Ltd. TECH6300, defoamer is from the 052 of BYK chemistry, and levelling agent selects the 3777 of EFKA, and anti-settling agent is from Foshan City's promise chemical industry W-20, titanium dioxide rises the R-996 of plastics Co., Ltd from Chengdu ten thousand.Polymerization inhibitor selects Tianjin great Mao chemical reagent factories Hydroquinones, grinding auxiliary agent selects the BT-1819 that hundred profits are closed, and talcum powder is from the wide talcum powder of sweet osmanthus board 1250 of Guangxi dragon, sulfuric acid Barium selects upper SeaBird space chemical industry, and coarse whiting selects the mesh coarse whiting of Guangxi Zhongshan County Yi Feng powders Co., Ltd 2000, and active solvent is selected The styrene of Chengdu Wan Ming Chemical Co., Ltd.s, adhesion promoter joins the A-1100 of carbon from the U.S..

Claims (9)

1. a kind of melamine plate with exempt from polish unsaturated polyester coating, it is characterised in that it by following weight parts raw material group Into:
Unsaturated polyester resin:45~60;Alkyd resin:2~10;
Toughener:3~15;Dispersant:0.5~5;
Defoamer:0.1~1;Levelling agent:0.2~1;
Anti-settling auxiliary agent:0.5~5;Polymerization inhibitor:0.01~0.1;
Grinding auxiliary agent:2~10;Titanium dioxide:5~15;
Inorganic filler:16~35;Active solvent:3~10;
Adhesion promoter:1~8.
2. a kind of melamine plate as claimed in claim 1 is with exempting from polishing unsaturated polyester coating, it is characterised in that described Inorganic filler is the mixture of coarse whiting, talcum powder and barium sulfate, and weight ratio is 1:1~2:5~10.
3. a kind of melamine plate as claimed in claim 1 is with exempting from polishing unsaturated polyester coating, it is characterised in that described Unsaturated polyester resin is Pneumoperitoneum pressure resin;The alkyd resin is ricinoleyl alcohol acid resin.
4. a kind of melamine plate as claimed in claim 1 is with exempting from polishing unsaturated polyester coating, it is characterised in that described Toughener is response type epoxy toughening agent;Described dispersant is the HMW silane copolymer containing close pigment group.
5. a kind of melamine plate as claimed in claim 1 is with exempting from polishing unsaturated polyester coating, it is characterised in that described Defoamer is acryl-based antifoaming agent;The levelling agent is modified propylene acids levelling agent.
6. a kind of melamine plate as claimed in claim 1 is with exempting from polishing unsaturated polyester coating, it is characterised in that described Anti-settling auxiliary agent is aerosil;The polymerization inhibitor is hydroquinones.
7. a kind of melamine plate as claimed in claim 1 is with exempting from polishing unsaturated polyester coating, it is characterised in that described Grinding auxiliary agent is zinc stearate, and the titanium dioxide is rutile titanium-type titanium dioxide.
8. a kind of melamine plate as claimed in claim 1 is with exempting from polishing unsaturated polyester coating, it is characterised in that described Active solvent is styrene;The adhesion promoter is amino silane compounds.
9. such as a kind of system for exempting from polishing unsaturated polyester coating of melamine plate according to any one of claim 1-8 Preparation Method, it is characterised in that the preparation method is:By unsaturated polyester resin, alkyd resin, toughener, dispersant, levelling Agent, defoamer, polymerization inhibitor, the active solvent of adhesion promoter and 2/3 volume are added in mixer, adjustment rotating speed to 700 Anti-settling auxiliary agent, titanium dioxide, inorganic filler and grinding auxiliary agent are sequentially added after~800rad/min, 8~15min of stirring, adjustment turns To 950~1100rad/min, scattered 10~20min, to grain fineness≤55 μm, adds residual activity solvent to speed at a high speed, and adjustment turns Speed stirs to 700~800rad/min, that is, melamine plate is made with exempting from polishing unsaturated polyester coating.
CN201710019047.6A 2017-01-11 2017-01-11 A kind of melamine plate is with exempting from polishing unsaturated polyester coating and preparation method thereof Pending CN107057540A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020002237A1 (en) * 1998-08-17 2002-01-03 Christoph Irle Aqueous coating compositions, their preparation and use in stoving lacquers
CN103360921A (en) * 2012-03-28 2013-10-23 展辰涂料集团股份有限公司 Anti-greening unsaturated polyester furniture coating
CN104497840A (en) * 2014-12-11 2015-04-08 三棵树涂料股份有限公司 Sanding-free PU (polyurethane) high-fullness white-finish varnish applicable to melamine substrates and preparation method thereof
CN104497812A (en) * 2014-12-11 2015-04-08 三棵树涂料股份有限公司 Sanding-free unsaturated polyester primer applicable to melamine substrates and preparation method thereof
CN105111901A (en) * 2015-08-21 2015-12-02 佛山市顺德区鸿昌涂料实业有限公司 Unsaturated polyester white primer for coating melamine board and preparing method of unsaturated polyester white primer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020002237A1 (en) * 1998-08-17 2002-01-03 Christoph Irle Aqueous coating compositions, their preparation and use in stoving lacquers
CN103360921A (en) * 2012-03-28 2013-10-23 展辰涂料集团股份有限公司 Anti-greening unsaturated polyester furniture coating
CN104497840A (en) * 2014-12-11 2015-04-08 三棵树涂料股份有限公司 Sanding-free PU (polyurethane) high-fullness white-finish varnish applicable to melamine substrates and preparation method thereof
CN104497812A (en) * 2014-12-11 2015-04-08 三棵树涂料股份有限公司 Sanding-free unsaturated polyester primer applicable to melamine substrates and preparation method thereof
CN105111901A (en) * 2015-08-21 2015-12-02 佛山市顺德区鸿昌涂料实业有限公司 Unsaturated polyester white primer for coating melamine board and preparing method of unsaturated polyester white primer

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* Cited by examiner, † Cited by third party
Title
孙德彬等: "《家具表面装饰工艺技术》", 30 April 2009, 中国轻工业出版社 *

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Application publication date: 20170818