CN113444412A - Water-based sound-insulation heat-preservation elastic waterproof coating and preparation method thereof - Google Patents
Water-based sound-insulation heat-preservation elastic waterproof coating and preparation method thereof Download PDFInfo
- Publication number
- CN113444412A CN113444412A CN201910399446.9A CN201910399446A CN113444412A CN 113444412 A CN113444412 A CN 113444412A CN 201910399446 A CN201910399446 A CN 201910399446A CN 113444412 A CN113444412 A CN 113444412A
- Authority
- CN
- China
- Prior art keywords
- water
- powder
- waterproof coating
- sound
- heat
- 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.)
- Withdrawn
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
- 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
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a water-based sound-insulation heat-preservation elastic waterproof coating, which comprises a liquid material and a powder material, wherein the weight ratio of the liquid material to the powder material is 1:1.2 to 1.5. The liquid material comprises the following components: 40 to 45 percent of pure acrylic emulsion I, 45 to 50 percent of pure acrylic emulsion II, 0.10 to 0.20 percent of preservative, 0.20 to 0.30 percent of dispersant, 0.10 to 0.20 percent of defoaming agent and 1 to 5 percent of defoaming agent. The powder material comprises the following components: 30 to 40 percent of cement, 25 to 30 percent of quartz powder, 15 to 20 percent of wollastonite, 5 to 15 percent of heat-insulating material, 5 to 10 percent of modified sound-insulating material, 0.02 to 0.05 percent of cellulose ether and 0.4 to 1 percent of water reducing agent. By adopting the technical scheme of the invention, the modified waterproof heat-insulating material is added, so that the product has double functions of waterproof and heat insulation, the modified sound-insulating material is added, and the sound-insulating effect of the modified polymer cement-based waterproof slurry is improved.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a water-based sound-insulation heat-preservation elastic waterproof coating and a preparation method thereof.
Background
The water-based paint is a relatively novel paint in the paint market, many people do not correctly know the water-based paint, and the water-based paint has the following characteristics compared with a solvent-based paint:
the water-based paint takes water as a solvent, so that a large amount of resources are saved, and the fire hazard during construction is eliminated; the air pollution is reduced, and the effect of reducing pollution and saving resources is remarkable;
the water-based paint can be directly coated and constructed on a wet surface and in a wet environment, and has good adaptability to the surface of a material and strong adhesive force of a coating.
The water paint coating tool can be cleaned by water, so that the consumption of cleaning solvent is greatly reduced.
However, the selection and development of the coating material are not only directed to the type of material, but also to the field of application.
In recent years, large-scale development and application of urban underground spaces are realized, a large number of underground civil air defense projects are repaired and recovered, the waterproof of the occasions is based on the principle of rigid-flexible combination and multi-defense, but a plurality of manufacturers expand the application range of rigid waterproof materials (such as watertight and cement-based permeable crystalline waterproof materials) on one side and are applied to waterproof construction of the back surface and the front surface of the underground project.
The practical application of engineering finds that the rigid waterproof material has the biggest defects of no flexibility, poor crack resistance, easy cracking when the wall has micro cracks or vibration caused by beating in decoration, poor impermeability and basically no sound insulation and heat preservation effects. The widely adopted method for blocking the capillary pores of the concrete by the waterproof agent plays a certain role in reducing the defects of the concrete and the cement mortar. But because the internal structure form of the material is not changed, the waterproof effect is not ideal, particularly, the waterproof slurry used as an independent waterproof layer cannot meet the waterproof requirement of buildings, and the common waterproof slurry has no heat preservation and sound insulation effects.
Therefore, the technical problems to be solved by the technical personnel in the field are to be solved.
Disclosure of Invention
In view of this, the present invention aims to: the water-based sound-insulation heat-insulation elastic waterproof coating and the preparation method thereof are provided for solving the problems that the conventional product in the prior art cannot meet the requirement on waterproof performance, cannot effectively protect a building main body and does not have a heat-insulation effect and a sound-insulation effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water-based sound-insulation heat-preservation elastic waterproof coating comprises a liquid material and powder material, wherein the weight ratio of the liquid material to the powder material is 1: 1.2-1.5.
Further, the liquid material comprises the following components:
furthermore, the pure acrylic emulsion I and the pure acrylic emulsion II in the liquid material components are both water-based pure acrylic high-elasticity emulsion, the glass transition temperature of the pure acrylic emulsion I is above minus 5 ℃, and the glass transition temperature of the propyl benzene emulsion II is below minus 15 ℃.
Further, the dispersant is a sodium polyacrylate dispersant.
Further, the defoaming agent is mineral oil or organic silicon defoaming agent.
Further, the powder material comprises the following components:
further, the cement is ordinary silicate white cement, and the quartz powder is 200-mesh quartz powder.
Further, the cellulose ether is hydroxyethyl methyl cellulose ether or hydroxypropyl methyl cellulose ether, and the viscosity is 20000 mPa.s-40000 mPa.s;
the water reducing agent is a sulfonated melamine high-efficiency water reducing agent or a polycarboxylic acid water reducing agent;
the modified sound insulation material comprises nitrile rubber, centrifugal glass wool and activated carbon, wherein the weight ratio of the nitrile rubber to the centrifugal glass wool to the activated carbon is as follows: centrifuging glass wool: activated carbon 50:30: 20.
Compared with the prior art, the invention has the following advantages:
the two pure acrylic emulsions which have good compound property with cement but different MFT are mixed, so that the bonding strength, water resistance and durability of the product are improved, and the waterproof coating film has stronger elasticity;
the operable time of the waterproof coating and the drying speed of the waterproof coating are improved by screening the auxiliary agent and optimizing the liquid-powder ratio;
the product prepared by the invention does not contain toxic substances, and belongs to a green and environment-friendly product;
the sound insulation material and the heat insulation material are porous and hollow materials which complement each other, and have a synergistic effect integrally, so that the sound insulation and heat insulation functions are achieved together, and the product has triple functions of water resistance, heat insulation and sound insulation.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
embodiment 1 discloses a water-based sound-insulation heat-preservation elastic waterproof coating, which comprises a liquid part and a powder part, wherein the weight ratio of the liquid part to the powder part is 1: 1.2.
The liquid material part comprises the following material components:
the powder part comprises the following material components:
example 2:
embodiment 2 discloses a water-based sound-insulation heat-preservation elastic waterproof coating, which comprises a liquid part and a powder part, wherein the weight ratio of the liquid part to the powder part is 1: 1.3.
The liquid material part comprises the following material components:
the powder part comprises the following material components:
example 3
Embodiment 3 discloses a water-based sound-insulation heat-preservation elastic waterproof coating, which comprises a liquid part and a powder part, wherein the weight ratio of the liquid part to the powder part is 1: 1.5.
The liquid material part comprises the following material components:
the powder part comprises the following material components:
in order to further realize the technical scheme of the invention, the cement in the invention is 42.5R ordinary silicate white cement produced by Hebei Qianbao manufacturers, the quartz powder is 200 meshes of quartz powder produced by Hebei Huaqiao mining industry, and the wollastonite is 200 meshes of wollastonite produced by Jiangxi Aute.
In order to further realize the technical scheme of the invention, the cellulose ether in the invention is hydroxyethyl methyl cellulose ether or hydroxypropyl methyl cellulose ether, and the viscosity is 20000 mPa.s-40000 mPa.s. The cellulose selected in this example was methylcellulose ether MW40000 PFV.
In order to further realize the technical scheme of the invention, the water reducing agent is a sulfonated melamine high-efficiency water reducing agent or a polycarboxylic acid water reducing agent. The water reducing agent selected in the embodiment is WG-Y;
in order to further realize the technical scheme of the invention, the modified sound insulation material comprises nitrile rubber, centrifugal glass wool and active carbon, wherein the weight ratio of the nitrile rubber to the centrifugal glass wool to the active carbon is as follows: centrifuging glass wool: activated carbon 50:30: 20.
In order to further realize the technical scheme of the invention, the pure acrylic emulsion I and the pure acrylic emulsion II in the liquid material components are both aqueous pure acrylic high-elasticity emulsion, and the glass transition temperature of the pure acrylic emulsion is between-15 ℃ and-5 ℃. The glass transition temperature of the pure acrylic emulsion I is above-5 ℃, the RS-300S emulsion is selected in the embodiment, the glass transition temperature of the propyl benzene emulsion II is below-15 ℃, and the RS-3001F emulsion produced by Badfu is selected in the embodiment.
In order to further realize the technical scheme of the invention, the dispersant in the invention is a sodium polyacrylate dispersant, and the dispersant selected in the embodiment is a Rohm and Haas dispersant OROTAN 731A.
In order to further realize the technical scheme of the invention, the defoaming agent in the invention is mineral oil or organic silicon defoaming agent, and the defoaming agent in the embodiment is an F-111 defoaming agent for break-Thailand chemical production.
In order to further realize the technical scheme of the invention, the modified thermal insulation material is a hollow glass sphere which has good optical performance and low thermal conductivity coefficient and has a diameter ranging from several micrometers to several millimeters, and the embodiment selects 3M brand 3M hollow glass microspheres.
In order to prove that the coating prepared by the invention has better technical effect, the invention carries out further test, and the test method comprises the following steps:
the solid content, drying time, bonding strength, impermeability, water impermeability, flexibility, alkali resistance, heat resistance and frost resistance are detected according to the detection method in GB/T23445-2009I type Polymer Cement waterproof coating.
The invention also performs performance tests on the water-based sound-insulation and heat-preservation modified polymer cement waterproof coating described in the embodiment 1-3, and refers to GB/T16406-1996 bending resonance method for testing material damping performance.
The water-based sound-insulation heat-preservation polymer cement waterproof coating provided by the invention has the following example detection results:
in conclusion, the water-based sound-insulation heat-preservation polymer cement elastic waterproof coating has excellent acid and alkali resistance, weather resistance, bonding strength and isolation to carbon dioxide, and meanwhile, extremely low VOC, heavy metal and the like are in an undetected range, so that the product can effectively prevent corrosion media such as chloride, oxygen, carbon dioxide, rainwater, acid rain and the like in the environment from corroding structural materials, is suitable for concrete surface protection, is waterproof and seepage-proof for ceramic tiles and wood, has the effects of preventing weathering, carbonization and corrosion, and has obvious sound-insulation and heat-preservation effects.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The water-based sound-insulation heat-insulation elastic waterproof coating is characterized by comprising a liquid material and powder material, wherein the weight ratio of the liquid material to the powder material is 1: 1.2-1.5.
2. The aqueous sound-proof thermal-insulation elastic waterproof coating material as claimed in claim 1, wherein the liquid material component comprises:
3. the water-based sound-insulating, heat-insulating, elastic and waterproof coating material as claimed in claim 2, wherein the liquid components include pure acrylic emulsion I and pure acrylic emulsion II, both of which are water-based pure acrylic high-elastic emulsions, the glass transition temperature of the pure acrylic emulsion I is above-5 ℃, the glass transition temperature of the propyl benzene emulsion II is below-15 ℃, and the preservative is a broad-spectrum bactericidal preservative of isothiazolinone.
4. The water-based sound-insulating heat-preserving elastic waterproof coating as claimed in claim 3, wherein the dispersant is a sodium polyacrylate dispersant.
5. The water-based sound-insulating heat-preserving elastic waterproof coating as claimed in claim 4, wherein the defoaming agent is mineral oil or silicone defoaming agent.
6. The water-based sound-insulation heat-preservation elastic waterproof coating as claimed in claim 1, wherein the powder component comprises:
7. the water-based sound-insulation heat-preservation elastic waterproof coating as claimed in claim 6, wherein the cement is ordinary silicate white cement, and the quartz powder is 200-mesh quartz powder.
8. The aqueous sound-proofing heat-insulating elastic waterproof coating material as claimed in claim 7, wherein the cellulose ether is hydroxyethyl methyl cellulose ether or hydroxypropyl methyl cellulose ether, and the viscosity is 20000mPa.s to 40000 mPa.s;
the water reducing agent is a sulfonated melamine high-efficiency water reducing agent or a polycarboxylic acid water reducing agent;
the modified sound insulation material comprises nitrile rubber, centrifugal glass wool and activated carbon, wherein the weight ratio of the nitrile rubber to the centrifugal glass wool to the activated carbon is as follows: centrifuging glass wool: activated carbon 50:30: 20.
9. A method for preparing the water-based sound-proof thermal-insulation elastic waterproof coating material as claimed in any one of claims 1 to 8, which comprises the following steps:
the method comprises the following steps: preparation of liquid material
Adding water, a dispersing agent and a defoaming agent into a liquid material stirring cylinder, and adding the emulsion under the condition of stirring at the rotating speed of 200-;
adjusting the stirring speed to be 500-700r/min, stirring for 4-6min, and slowly adding the mildew preventive;
stirring for 4-6min, and packaging. Finishing the preparation of liquid materials;
step two: preparation of powder
Accurately weighing cement, quartz powder, wollastonite, a heat-insulating material, a modified sound-insulating material, hydroxypropyl methyl cellulose and a water reducing agent according to specified specifications, putting half of the cement, half of the quartz powder and the wollastonite into a conical spiral mixer, stirring for 10-12min, then adding the heat-insulating material, the modified sound-insulating material, the hydroxypropyl methyl cellulose and the water reducing agent, then adding the rest white cement and the quartz powder, stirring for 30min, and finishing the preparation of powder materials and packaging;
step three: mixing the powder and the liquid
And after the liquid component and the powder component are prepared, mixing the liquid component and the powder component in proportion to obtain the waterproof coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399446.9A CN113444412A (en) | 2019-05-14 | 2019-05-14 | Water-based sound-insulation heat-preservation elastic waterproof coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910399446.9A CN113444412A (en) | 2019-05-14 | 2019-05-14 | Water-based sound-insulation heat-preservation elastic waterproof coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113444412A true CN113444412A (en) | 2021-09-28 |
Family
ID=77806250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910399446.9A Withdrawn CN113444412A (en) | 2019-05-14 | 2019-05-14 | Water-based sound-insulation heat-preservation elastic waterproof coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113444412A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448667A (en) * | 2022-09-29 | 2022-12-09 | 科顺民用建材有限公司 | Anti-sagging waterproof mortar composition, anti-sagging waterproof mortar and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107418312A (en) * | 2017-05-27 | 2017-12-01 | 青岛东方雨虹建筑材料有限公司 | A kind of hydrophobic type polymer cement waterproof paint and preparation method thereof |
| CN108276858A (en) * | 2018-01-18 | 2018-07-13 | 河北晨阳工贸集团有限公司 | A kind of water-based sound-proof thermal insulation coatings and preparation method thereof and construction method |
| CN109679381A (en) * | 2018-12-06 | 2019-04-26 | 河北晨阳工贸集团有限公司 | A kind of antimildew and antibacterial water-repellent paint and preparation method thereof |
-
2019
- 2019-05-14 CN CN201910399446.9A patent/CN113444412A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107418312A (en) * | 2017-05-27 | 2017-12-01 | 青岛东方雨虹建筑材料有限公司 | A kind of hydrophobic type polymer cement waterproof paint and preparation method thereof |
| CN108276858A (en) * | 2018-01-18 | 2018-07-13 | 河北晨阳工贸集团有限公司 | A kind of water-based sound-proof thermal insulation coatings and preparation method thereof and construction method |
| CN109679381A (en) * | 2018-12-06 | 2019-04-26 | 河北晨阳工贸集团有限公司 | A kind of antimildew and antibacterial water-repellent paint and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115448667A (en) * | 2022-09-29 | 2022-12-09 | 科顺民用建材有限公司 | Anti-sagging waterproof mortar composition, anti-sagging waterproof mortar and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101386506B (en) | Light heat insulating mortar | |
| CN104017413B (en) | A kind of interior wall heat preservation putty and using method thereof | |
| CN102159774B (en) | Composite structure for exterior insulation applications of outside wall | |
| CN111072336A (en) | Water-based sound-insulation modified polymer cement-based waterproof slurry and preparation method thereof | |
| CN102010228B (en) | Outer wall sealing impervious interface agent and preparing method thereof | |
| CN101838132B (en) | Special interface mortar for spray polyurethane rigid-foam skinning surfaces, and preparation method thereof | |
| CN103553542B (en) | Thermal insulation waterproof daub and preparation method thereof | |
| CN103319128A (en) | Anti-crack plaster mortar for outer wall of building and method for preparing anti-crack plaster mortar | |
| CN108947430B (en) | Slow-setting and quick-hardening special functional waterproof mortar and preparation method thereof | |
| CN106280591B (en) | A kind of thick coated type steel structure fire-proof paint and preparation method thereof | |
| CN110078532B (en) | Foamed polystyrene high-strength lightweight aggregate with core-shell structure and preparation method thereof | |
| CN112175461A (en) | Exterior wall heat-insulation middle coating and preparation method thereof | |
| CN107352909B (en) | Special finishing mortar for foam glass heat insulation system and preparation method and use method thereof | |
| CN102619287A (en) | Inorganic heat-insulation fireproof plate | |
| CN106433274A (en) | Heat-cold insulation bridge type flue gas desulfurization gypsum-based joint filling agent | |
| CN113444412A (en) | Water-based sound-insulation heat-preservation elastic waterproof coating and preparation method thereof | |
| CN109135441B (en) | Heat-insulating coating, preparation method thereof and heat-insulating system applying coating | |
| CN113755044A (en) | Pure inorganic non-combustible water-based sound insulation damping coating and preparation and use method thereof | |
| CN113429841A (en) | Water-based coating composition for forming wall heat-insulating coating and wall reflection heat-insulating coating system containing heat-insulating coating | |
| CN107793088A (en) | Lightweight anti-cracking heat insulation mortar | |
| CN110482944A (en) | Aqueous waterproofing paint and preparation method thereof with heat-insulating sound-insulating function | |
| Hu | Characteristics and Application of Thermal Mortar Materials in Building Materials | |
| CN112010597A (en) | Multifunctional single-component leveling material for renovating old wall surfaces and old ceramic tiles and construction method thereof | |
| CN115466080A (en) | External wall heat-insulation system with double-component hollow glass bead heat-insulation coating, preparation method and application thereof | |
| CN115895370A (en) | Fire-resistant, waterproof and super-weather-resistant single-component micro-cement coating |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210928 |