CN105331159A - Coating for building external wall and preparation method thereof - Google Patents
Coating for building external wall and preparation method thereof Download PDFInfo
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- CN105331159A CN105331159A CN201510686307.6A CN201510686307A CN105331159A CN 105331159 A CN105331159 A CN 105331159A CN 201510686307 A CN201510686307 A CN 201510686307A CN 105331159 A CN105331159 A CN 105331159A
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Abstract
The invention provides a coating for building external wall and a preparation method thereof. The coating comprises the following compositions: a polymer emulsion, methacryloxydodecyldimethoxysilane, an antiseptic, ethylene-styrene-hydroxyethyl acrylate copolymer powder, a binder, cellulose, an antifoaming agent, terpineol, an additive, a nanometer powder and a modified filling material. Compared with the prior art, by taking the tribromoneopentyl methacrylate emulsion with anticorrosion function as a raw material, the coating possesses good anticorrosion performance; by taking methacryloxydodecyldimethoxysilane as a waterproof agent, the coating is improved in waterproof performance; and by employing the ethylene-styrene-hydroxyethyl acrylate copolymer powder, the dispersity and the caking property of the compositions in the coating are effectively improved, and also the coating anti-ageing performance is improved. Experiment result shows that the prepared coating for building external walls possesses good anti-ageing performance, waterproof performance and anticorrosion performance.
Description
Technical field
The present invention relates to technical field of coatings, particularly relate to a kind of coating used for building exterior wall and preparation method thereof.
Background technology
Along with development and the refinement of domestic coating industry, the demand of market to special functional coating is also more and more urgent.In the last few years, the requirement of buildings to waterproof, the performance such as anticorrosion, ageing-resistant, fire-retardant improved gradually, and in order to meet the requirement of construction industry to speciality coating, production high-performance, multiduty functional coating have great importance.
At present, be mainly divided into waterproof paint and protective system at architectural used coating, there is waterproof, seepage control and rot-resistant function respectively.In actual applications, often require that coating has waterproof and rot-resistant function simultaneously, the impact of such as acid rain is increasing, and the external coating of architectural needs can simultaneously waterproof and acidproof.But existing technology can only form waterproof layer and preservative coat to buildings brushing waterproof paint and protective system respectively.
And, the waterproof paint ubiquity problem that easily aging, work-ing life is short used for building exterior wall, ultraviolet irradiation is stood in outdoor application process, the phenomenons such as easy generation is dry and cracked, be out of shape, fracture, layering, there is Seepage, general all will re-starting every several years is reprocessed, and consumes a large amount of manpower, material resources and financial resources.Therefore, the present inventor considers, develops a kind of good endurance, has the coating used for building exterior wall of water-tight corrosion-proof concurrently and have important practical significance.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of coating used for building exterior wall and preparation method thereof, and this coating used for building exterior wall has good water resistance, antiseptic property and ageing-resistant performance.
In view of this, the invention provides a kind of coating used for building exterior wall, comprise following component:
Wherein, described polymer emulsion is polyacrylic ester and tribromophenol methacrylic ester.
Preferably, described sanitas is bromo propionamido--benzisothiazole-3-ketone.
Preferably, described binding agent is polyvinylpyrrolidone.
Preferably, described Mierocrystalline cellulose is Vltra tears.
Preferably, described defoamer is trifluoro propyl oxyethyl group silica.
Preferably, described nano-powder is the mixture of nanometer cuprous thiocyanate and Red copper oxide.
Preferably, described modified filler is prepared as follows: dose volume ratio is the aqueous ethanolic solution of 1: 1, by the hydrochloric acid soln adjust ph to 5.0 of 0.01M, obtains mixing solutions; Be dispersed in by calcined kaolin in described mixing solutions, stir, dropwise add hexadecyl trimethoxy silane in the water-bath of 50 DEG C with the rotating speed of 500r/min, continue to stir 3h, suction filtration, washing, obtain modified filler after dry, pulverize.
Accordingly, the present invention also provides a kind of preparation method of coating used for building exterior wall, comprise the following steps: 2-4 weight part nano-powder, the part by weight modified filler of 6-8,2-3 part by weight of cellulose, 3-5 parts by weight of ethylene-Styrene And Chloroalkyl Acrylates hydroxyl methacrylate copolymers rubber powder and 1-2 parts by weight binder are mixed, stir in stirrer high speed, obtain the first Preblend; 80-85 parts by weight polymer emulsion, 2-3 weight part methacryloxy dimethyl TMOS, 1.5-2 weight part sanitas, 1-1.4 weight part Terpineol 350 and 1-2 weight part admixture are mixed, obtain the second Preblend after stirring in stirred pot, described polymer emulsion is polyacrylic ester and tribromophenol methacrylic ester; Described second Preblend is added in described first Preblend, after stirring, adds 0.6-1 weight part defoamer, after continuing stirring, obtain coating used for building exterior wall.
Preferably, described modified filler is prepared as follows: dose volume ratio is the aqueous ethanolic solution of 1: 1, by the hydrochloric acid soln adjust ph to 5.0 of 0.01M, obtains mixing solutions; Be dispersed in by calcined kaolin in described mixing solutions, stir, dropwise add hexadecyl trimethoxy silane in the water-bath of 50 DEG C with the rotating speed of 500r/min, continue to stir 3h, suction filtration, washing, obtain modified filler after dry, pulverize.
Preferably, described sanitas is bromo propionamido--benzisothiazole-3-ketone.
The invention provides a kind of coating used for building exterior wall and preparation method thereof, comprise following component: polymer emulsion, methacryloxy dimethyl TMOS, sanitas, ethylene-stryene-hydroxyethylacrylate copolymer rubber powder, binding agent, Mierocrystalline cellulose, defoamer, Terpineol 350, admixture, nano-powder and modified filler, described polymer emulsion is polyacrylic ester and tribromophenol methacrylic ester.Compared with prior art, the present invention, to have the tribromophenol methacrylate emulsions of anti-corrosion function for raw material, ensure that coating has good antiseptic property; Using methacryloxy dimethyl TMOS as water-resisting agent, improve the water resistance of coating; Adopt ethylene-stryene-hydroxyethylacrylate copolymer rubber powder, effective dispersiveness and the cohesiveness improving component in coating, improves the ageing-resistant performance of coating.Experimental result shows, coating used for building exterior wall prepared by the present invention has good ageing-resistant performance, water resistance and antiseptic property.
Embodiment
In order to understand the present invention further, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these describe just for further illustrating the features and advantages of the present invention, instead of limiting to the claimed invention.
The embodiment of the invention discloses a kind of coating used for building exterior wall, comprise following component:
Wherein, described polymer emulsion is polyacrylic ester and tribromophenol methacrylic ester.
The present invention selects the emulsion of anti-corrosion function to be raw material, and outer adding preservative agent and water-resisting agent make coating have waterproof and anti-corrosion function concurrently.Wherein, present invention employs the tribromophenol methacrylate emulsions with anti-corrosion function is raw material, adds the antiseptic power of coating; With methacryloxy dimethyl TMOS for water-resisting agent, improve the water resistance of coating.Preferably, in described polymer emulsion, the weight ratio of polyacrylic ester and tribromophenol methacrylic ester is preferably 5: 3.
Preferably, described sanitas is bromo propionamido--benzisothiazole-3-ketone.Bromo propionamido--benzisothiazole-3-ketone is a kind of novel antiseptic-germicide, has broad-spectrum antimicrobial characteristic.Ethylene-stryene-hydroxyethylacrylate copolymer rubber powder effectively can improve dispersiveness and the cohesiveness of component in coating.
Preferably, described binding agent is polyvinylpyrrolidone; Described Mierocrystalline cellulose is preferably Vltra tears; Described defoamer is preferably trifluoro propyl oxyethyl group silica; Described admixture is preferably zinc acrylate resin.Described admixture is preferably zinc acrylate resin.Described nano-powder is the mixture of nanometer cuprous thiocyanate and Red copper oxide, preferred, and in mixture, the weight ratio of cuprous thiocyanate and Red copper oxide is 1: 2.The present invention, by adding nanometer cuprous thiocyanate particle, guarantees dispersed in coating of particle, plays the absorption action of ultraviolet radiation of particle, improves the weathering resistance of coating further.
Preferably, described modified filler is preferably silane-modified calcined kaolin; Preferred further, the granularity of described calcined kaolin meets d
90≤ 10 μm.
Described modified filler is preferably prepared as follows: dose volume ratio is the aqueous ethanolic solution of 1: 1, by the hydrochloric acid soln adjust ph to 5.0 of 0.01M, obtains mixing solutions; Be dispersed in by calcined kaolin in described mixing solutions, stir, dropwise add hexadecyl trimethoxy silane in the water-bath of 50 DEG C with the rotating speed of 500r/min, continue to stir 3h, suction filtration, washing, obtain modified filler after dry, pulverize.
Accordingly, the present invention also provides a kind of preparation method of coating used for building exterior wall, comprise the following steps: 2-4 weight part nano-powder, the part by weight modified filler of 6-8,2-3 part by weight of cellulose, 3-5 parts by weight of ethylene-Styrene And Chloroalkyl Acrylates hydroxyl methacrylate copolymers rubber powder and 1-2 parts by weight binder are mixed, stir in stirrer high speed, obtain the first Preblend; 80-85 parts by weight polymer emulsion, 2-3 weight part methacryloxy dimethyl TMOS, 1.5-2.0 weight part sanitas, 1-1.4 weight part Terpineol 350 and 1-2 weight part admixture are mixed, obtain the second Preblend after stirring in stirred pot, described polymer emulsion is polyacrylic ester and tribromophenol methacrylic ester; Described second Preblend is added in described first Preblend, after stirring, adds 0.6-1.0 weight part defoamer, after continuing stirring, obtain coating used for building exterior wall.
Preferably, described modified filler is preferably prepared as follows: dose volume ratio is the aqueous ethanolic solution of 1: 1, by the hydrochloric acid soln adjust ph to 5.0 of 0.01M, obtains mixing solutions; Be dispersed in by calcined kaolin in described mixing solutions, stir, dropwise add hexadecyl trimethoxy silane in the water-bath of 50 DEG C with the rotating speed of 500r/min, continue to stir 3h, suction filtration, washing, obtain modified filler after dry, pulverize.
Preferably, in polymer emulsion, the weight ratio of polyacrylic ester and tribromophenol methacrylic ester is preferably 5: 3.
Described sanitas is preferably bromo propionamido--benzisothiazole-3-ketone.Described binding agent is preferably polyvinylpyrrolidone.Described Mierocrystalline cellulose is preferably Vltra tears; Described defoamer is preferably trifluoro propyl oxyethyl group silica; Described nano-powder is preferably the mixture of nanometer cuprous thiocyanate and Red copper oxide.
As can be seen from above scheme, the present invention mixes as polymer emulsion raw material using tribromophenol methacrylic ester with polyacrylic ester, improves the antiseptic property of coating; By using methacryloxy dimethyl TMOS as water-resisting agent, improve the water resistance of coating; Adopt ethylene-stryene-hydroxyethylacrylate copolymer rubber powder, effective dispersiveness and the cohesiveness improving component in coating, improves the ageing-resistant performance of coating.
Preferably, the present invention also introduces organic polymer rubber powder and binding agent, guarantees that coating has better viscosifying power and anti-dry and cracked performance.Dispersed in coating of cuprous thiocyanate and Red copper oxide composite nanoparticle, can give coating by nanoparticle to ultraviolet sorption and have excellent ageing-resistant performance.
In order to understand the present invention further, be described in detail to technical scheme provided by the invention below in conjunction with embodiment, protection scope of the present invention is not limited by the following examples.
The raw material that the present invention adopts and chemical reagent are commercial.
The polymer emulsion that the embodiment of the present invention adopts is weight ratio is the polyacrylic ester of 5: 3 and the mixture of tribromophenol methacrylic ester; Wherein, polyacrylic ester originates from Jinan Bai Nachuan Chemical Co., Ltd.; Tribromophenol methacrylate type number is SL-200, originates from Dow Chemical company;
The water-resisting agent that the embodiment of the present invention adopts is methacryloxy dimethyl TMOS, originates from German BASF chemical industry (China) company limited;
The sanitas that the embodiment of the present invention adopts is bromo propionamido--benzisothiazole-3-ketone, originates from German BASF chemical industry (China) company limited;
The polymer glue powder that the embodiment of the present invention adopts is ethylene-stryene-hydroxyethylacrylate copolymer rubber powder, originates from Shandong Enrique Miguez Gómez Chemical Co., Ltd.
The binding agent that the embodiment of the present invention adopts is polyvinylpyrrolidone, originates from Chemical Reagent Co., Ltd., Sinopharm Group;
The Mierocrystalline cellulose that the embodiment of the present invention adopts is Vltra tears, originates from Ruitai Cellulose Co Ltd, Tai'an;
The defoamer that the embodiment of the present invention adopts is trifluoro propyl oxyethyl group siloxanes, originates from NanJing Shuguang Chemical Group Co., Ltd.;
The Terpineol 350 that the embodiment of the present invention adopts originates from Tianjin Ke Miou chemical reagent company limited;
The admixture that the embodiment of the present invention adopts is zinc acrylate resin, originates from Jiangsu colleague Tian Peng Fine Chemical Co., Ltd.
The nano-powder that the embodiment of the present invention adopts is nanometer cuprous thiocyanate and Red copper oxide mixture, and in mixture, the weight ratio of cuprous thiocyanate and Red copper oxide is 1: 2.
Embodiment 1
(1), silane-modified calcined kaolin clay filler is first prepared: first dose volume ratio is the aqueous ethanolic solution of 1: 1, by the hydrochloric acid soln adjust ph to 5.0 of 0.01M, taking 1kg calcined kaolin is dispersed in above-mentioned solution, under the rotating speed of 500r/min stirs in the water-bath of 50 DEG C, dropwise add 10g hexadecyl trimethoxy silane, continue after completing to stir 3h, eventually pass suction filtration, washing, fully dry, pulverize at 80 DEG C, obtain silane-modified calcined kaolin clay filler; (2), take 2 weight part nano-powders, the silane-modified calcined kaolin clay filler of 7 weight part, 3 part by weight of cellulose, 5 parts by weight polymer rubber powders, 1 parts by weight binder stir 10 minutes in stirrer high speed; Stirring, it is for subsequent use to obtain premix powders; (3) 80 parts by weight polymer emulsions, 2 weight part water-resisting agents, 2 weight part sanitass, 1 weight part Terpineol 350,1 weight part admixture high-speed stirring 15 minutes in stirred pot, is taken; (4) add above-mentioned premix powders in the compound, to step 3 obtained, add 0.8 weight part defoamer after stirring and continue stirring again 5 minutes, obtain the coating used for building exterior wall having water-tight corrosion-proof function concurrently.
Embodiment 2
(1), silane-modified calcined kaolin clay filler is first prepared: method is with embodiment 1; (2), take 2.5 weight part nano-powders, the silane-modified calcined kaolin clay filler of 6.5 weight part, 2.2 part by weight of cellulose, 5 parts by weight polymer rubber powders, 1.5 parts by weight binder stir 10 minutes in stirrer high speed; Stirring, it is for subsequent use to obtain premix powders; (3) 82 parts by weight polymer emulsions, 2.4 weight part water-resisting agents, 1.5 weight part sanitass, 1.2 weight part Terpineol 350s, 1.5 weight part admixtures high-speed stirring 15 minutes in stirred pot, is taken; (4) add above-mentioned premix powders in the compound, to step 3 obtained, add 0.6 weight part defoamer after stirring and continue stirring again and obtain a kind of coating used for building exterior wall having water-tight corrosion-proof function concurrently in 5 minutes.
Embodiment 3
(1), silane-modified calcined kaolin clay filler is first prepared: method is with embodiment 1; (2), take 3 weight part nano-powders, the silane-modified calcined kaolin clay filler of 8 weight part, 2.6 part by weight of cellulose, 4 parts by weight polymer rubber powders, 1.8 parts by weight binder stir 10 minutes in stirrer high speed; Stirring, it is for subsequent use to obtain premix powders; (3) 84 parts by weight polymer emulsions, 2.8 weight part water-resisting agents, 1.7 weight part sanitass, 1.4 weight part Terpineol 350s, 1.5 weight part admixtures high-speed stirring 15 minutes in stirred pot, is taken; (4) add above-mentioned premix powders in the compound, to step 3 obtained, add 0.8 weight part defoamer after stirring and continue stirring again and obtain a kind of coating used for building exterior wall having water-tight corrosion-proof function concurrently in 5 minutes.
Embodiment 4
(1), silane-modified calcined kaolin clay filler is first prepared: method is with embodiment 1; (2), take 4 weight part nano-powders, the silane-modified calcined kaolin clay filler of 7.5 weight part, 2.9 part by weight of cellulose, 4.5 parts by weight polymer rubber powders, 2 parts by weight binder stir 10 minutes in stirrer high speed; Stirring, it is for subsequent use to obtain premix powders; (3) 85 parts by weight polymer emulsions, 3 weight part water-resisting agents, 1.8 weight part sanitass, 1.2 weight part Terpineol 350s, 2 weight part admixtures high-speed stirring 15 minutes in stirred pot, is taken; (4) compound, to step 3 obtained adds above-mentioned premix powders, adds 1 weight part defoamer and continue stirring again and obtain a kind of coating used for building exterior wall having water-tight corrosion-proof function concurrently in 5 minutes after stirring.
Detect a kind of main performance index having the coating used for building exterior wall of water-tight corrosion-proof function concurrently of the present invention according to JC/T864-2008, its detected result is as shown in table 1.
The main performance index of table 1, each embodiment coating
| Sequence number | Test event | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| 1 | Tensile strength | MPa | 2.2 | 1.9 | 2.3 | 2.1 |
| 2 | Elongation at break | ％ | 380 | 430 | 410 | 400 |
| 3 | Watertightness | - | Waterproof | Waterproof | Waterproof | Waterproof |
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a coating used for building exterior wall, is characterized in that, comprises following component:
Wherein, described polymer emulsion is polyacrylic ester and tribromophenol methacrylic ester.
2. coating used for building exterior wall according to claim 1, is characterized in that, described sanitas is bromo propionamido--benzisothiazole-3-ketone.
3. coating used for building exterior wall according to claim 1, is characterized in that, described binding agent is polyvinylpyrrolidone.
4. coating used for building exterior wall according to claim 1, is characterized in that, described Mierocrystalline cellulose is Vltra tears.
5. coating used for building exterior wall according to claim 1, is characterized in that, described defoamer is trifluoro propyl oxyethyl group silica.
6. coating used for building exterior wall according to claim 1, is characterized in that, described nano-powder is the mixture of nanometer cuprous thiocyanate and Red copper oxide.
7. coating used for building exterior wall according to claim 1, is characterized in that, described modified filler is prepared as follows:
Dose volume ratio is the aqueous ethanolic solution of 1: 1, by the hydrochloric acid soln adjust ph to 5.0 of 0.01M, obtains mixing solutions;
Be dispersed in by calcined kaolin in described mixing solutions, stir, dropwise add hexadecyl trimethoxy silane in the water-bath of 50 DEG C with the rotating speed of 500r/min, continue to stir 3h, suction filtration, washing, obtain modified filler after dry, pulverize.
8. a preparation method for coating used for building exterior wall, is characterized in that, comprises the following steps:
2-4 weight part nano-powder, the part by weight modified filler of 6-8,2-3 part by weight of cellulose, 3-5 parts by weight of ethylene-Styrene And Chloroalkyl Acrylates hydroxyl methacrylate copolymers rubber powder and 1-2 parts by weight binder are mixed, stirs in stirrer high speed, obtain the first Preblend;
80-85 parts by weight polymer emulsion, 2-3 weight part methacryloxy dimethyl TMOS, 1.5-2 weight part sanitas, 1-1.4 weight part Terpineol 350 and 1-2 weight part admixture are mixed, obtain the second Preblend after stirring in stirred pot, described polymer emulsion is polyacrylic ester and tribromophenol methacrylic ester;
Described second Preblend is added in described first Preblend, after stirring, adds 0.6-1 weight part defoamer, after continuing stirring, obtain coating used for building exterior wall.
9. preparation method according to claim 8, is characterized in that, described modified filler is prepared as follows:
Dose volume ratio is the aqueous ethanolic solution of 1: 1, by the hydrochloric acid soln adjust ph to 5.0 of 0.01M, obtains mixing solutions;
Be dispersed in by calcined kaolin in described mixing solutions, stir, dropwise add hexadecyl trimethoxy silane in the water-bath of 50 DEG C with the rotating speed of 500r/min, continue to stir 3h, suction filtration, washing, obtain modified filler after dry, pulverize.
10. preparation method according to claim 8, is characterized in that, described sanitas is bromo propionamido--benzisothiazole-3-ketone.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106336702A (en) * | 2016-08-24 | 2017-01-18 | 常熟市双灵船舶设备有限公司 | Single-wheel pulley for hoisting machinery |
| CN108864856A (en) * | 2018-07-13 | 2018-11-23 | 安徽康瑞高科新材料技术工程有限公司 | A kind of aqueous bottle coating and preparation method thereof |
| CN109021821A (en) * | 2018-07-13 | 2018-12-18 | 安徽康瑞高科新材料技术工程有限公司 | A kind of heat-and corrosion-resistant coating and preparation method thereof |
| CN109181426A (en) * | 2018-07-13 | 2019-01-11 | 安徽康瑞高科新材料技术工程有限公司 | A kind of modified polyvinyl chloride paint and preparation method thereof |
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| CN103756477A (en) * | 2013-12-27 | 2014-04-30 | 安徽省美域节能环保技术应用有限公司 | Anti-corrosion coating for external wall and preparation method thereof |
| CN104109430A (en) * | 2014-07-01 | 2014-10-22 | 芜湖县双宝建材有限公司 | Emulsion type waterproof corrosion-resistant acrylate exterior wall coating |
| CN104327657A (en) * | 2014-10-20 | 2015-02-04 | 芜湖县双宝建材有限公司 | Special energy-saving heat-insulation water-resistant anticorrosive paint for architectural outer walls |
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2015
- 2015-10-16 CN CN201510686307.6A patent/CN105331159A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103756477A (en) * | 2013-12-27 | 2014-04-30 | 安徽省美域节能环保技术应用有限公司 | Anti-corrosion coating for external wall and preparation method thereof |
| CN104109430A (en) * | 2014-07-01 | 2014-10-22 | 芜湖县双宝建材有限公司 | Emulsion type waterproof corrosion-resistant acrylate exterior wall coating |
| CN104327657A (en) * | 2014-10-20 | 2015-02-04 | 芜湖县双宝建材有限公司 | Special energy-saving heat-insulation water-resistant anticorrosive paint for architectural outer walls |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106336702A (en) * | 2016-08-24 | 2017-01-18 | 常熟市双灵船舶设备有限公司 | Single-wheel pulley for hoisting machinery |
| CN108864856A (en) * | 2018-07-13 | 2018-11-23 | 安徽康瑞高科新材料技术工程有限公司 | A kind of aqueous bottle coating and preparation method thereof |
| CN109021821A (en) * | 2018-07-13 | 2018-12-18 | 安徽康瑞高科新材料技术工程有限公司 | A kind of heat-and corrosion-resistant coating and preparation method thereof |
| CN109181426A (en) * | 2018-07-13 | 2019-01-11 | 安徽康瑞高科新材料技术工程有限公司 | A kind of modified polyvinyl chloride paint and preparation method thereof |
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Effective date of registration: 20170908 Address after: 315040 B3 building, hi tech Zone, Zhejiang, Ningbo, China 509-512 Applicant after: High and new technology industrial development zone, Ningbo Xia Yuan Science and Technology Ltd. Address before: Jiulonghu Town Industrial Zone, Zhenhai District 315203 feldspar in Zhejiang province Ningbo city Shen Tai Road No. 1 Applicant before: NINGBO SHENTAI DRY POWDER BUILDING MATERIAL CO., LTD. |
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