CN111440464A - Inorganic dry powder paint and preparation method thereof - Google Patents
Inorganic dry powder paint and preparation method thereof Download PDFInfo
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- CN111440464A CN111440464A CN201910042998.4A CN201910042998A CN111440464A CN 111440464 A CN111440464 A CN 111440464A CN 201910042998 A CN201910042998 A CN 201910042998A CN 111440464 A CN111440464 A CN 111440464A
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- dry powder
- paint
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- powder paint
- inorganic
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- 239000003973 paint Substances 0.000 title claims abstract description 47
- 239000000843 powder Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title abstract description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 9
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011575 calcium Substances 0.000 claims abstract description 8
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 8
- 238000007665 sagging Methods 0.000 claims abstract description 8
- 239000011256 inorganic filler Substances 0.000 claims abstract description 7
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 7
- 239000003607 modifier Substances 0.000 claims abstract description 7
- 230000008719 thickening Effects 0.000 claims abstract description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 239000002518 antifoaming agent Substances 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000920 calcium hydroxide Substances 0.000 claims description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 6
- 229920000126 latex Polymers 0.000 claims description 6
- 239000004816 latex Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000005995 Aluminium silicate Substances 0.000 claims description 4
- 239000001341 hydroxy propyl starch Substances 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 4
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 4
- 235000013828 hydroxypropyl starch Nutrition 0.000 claims description 4
- GNHOJBNSNUXZQA-UHFFFAOYSA-J potassium aluminium sulfate dodecahydrate Chemical group O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GNHOJBNSNUXZQA-UHFFFAOYSA-J 0.000 claims description 4
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 3
- 229940037003 alum Drugs 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 3
- 229920002126 Acrylic acid copolymer Polymers 0.000 claims description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 2
- 125000005375 organosiloxane group Chemical group 0.000 claims description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims 1
- 229920002554 vinyl polymer Polymers 0.000 claims 1
- 239000000839 emulsion Substances 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000005201 scrubbing Methods 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 4
- 239000013530 defoamer Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- -1 hydroxypropyl Chemical group 0.000 description 1
- 229960003943 hypromellose Drugs 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 229920003008 liquid latex Polymers 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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)
- Dispersion Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to an inorganic dry powder paint and a preparation method thereof, wherein the paint comprises the following raw materials in percentage by weight: 15% -25%, titanium dioxide: 0% -10%, thickening water-retaining agent: 0.3% -0.6%, anti-sagging agent: 0.5% -1%, defoamer: 0.1% -0.3%, inorganic filler: 40% -60%, ash calcium modifier: 0.4 to 0.8 percent. The dry powder paint can solve the environmental protection problem of the traditional liquid emulsion paint, has the advantages of simple production process, convenient production, transportation and storage, simultaneously reduces the production cost, has the same functionality with the traditional liquid emulsion paint, has the advantages of water resistance, scrubbing resistance, acid and alkali resistance, aging resistance, more environmental protection and the like, can pass the detection of various national standards, is a product which can replace the traditional liquid emulsion paint, caters for the market and is also a development trend of the coating industry.
Description
The technical field is as follows:
1. The invention belongs to the technical field of building coatings, and relates to an environment-friendly inorganic dry powder latex paint for interior and exterior walls and a preparation method thereof.
Background of the invention:
2. The traditional liquid latex paint has complex manufacturing process, high production cost, inconvenient package and transportation, strict requirement on storage environment, and volatilization of organic matters, which causes waste of manpower and material resources and environmental pollution.
3. The inorganic dry powder paint has the advantages of zero VOC, zero volatilization of harmful substances such as formaldehyde and the like, simple production process, low cost price, convenient packaging, transportation and storage, no influence of environmental temperature, capability of being mixed with water for use in a construction site according to a proportion, full functionality and decoration effect of the traditional liquid emulsion paint, capability of passing detection of various national standards, capability of replacing the traditional liquid emulsion paint, capability of meeting the market, and development trend of the architectural coating industry.
The invention content is as follows: 4. the invention aims to provide an inorganic dry powder paint which has the same functionality as that of the traditional liquid emulsion paint after being mixed with water according to a proportion for use, has longer weather resistance and more convenient and environment-friendly use, and solves the problems of high production cost, environmental pollution, resource waste and the like of the traditional liquid emulsion paint.
5. The invention also provides a preparation method of the inorganic dry powder paint.
6. An inorganic dry powder paint is composed of the following raw materials by weight percent: redispersible latex powder: 15% -25%, titanium dioxide: 0% -10%, thickening water-retaining agent: 0.3% -0.6%, anti-sagging agent: 0.5% -1%, defoamer: 0.1% -0.3%, ash calcium modifier: 0.4% -0.8%, inorganic filler: 40 to 60 percent.
7. Specifically, the redispersible latex powder is film-forming substances such as VAE copolymer, acrylic acid copolymer and the like.
8. Specifically, the suspension thickening agent is as follows: hydroxypropyl cellulose (HEC) or Hypromellose (HPMC), with a viscosity range: 8000-30000 MPa.s.
9. Specifically, the anti-sagging agent is as follows: hydroxypropyl starch ether.
10. Specifically, the defoaming agent is an organosiloxane dry powder defoaming agent.
11. Specifically, the ash calcium modifier is as follows: potassium aluminum sulfate dodecahydrate is alum.
12. Specifically, the inorganic filler is: the fineness of the ceramic powder is 3000-5000 meshes; calcium carbonate with the fineness of 2000-3000 meshes; food-grade calcium hydroxide powder with the fineness of over 1250 meshes; kaolin with the fineness of 4000 meshes; the whiteness of each filler is more than 93%.
13. The preparation method of the inorganic dry powder paint comprises the following specific steps: the raw materials are taken according to the proportion and are mixed evenly.
14. The redispersible latex powder is a polymer film forming substance, is added with calcium hydroxide, nanoscale inorganic filler, pigment and functional auxiliary agent, greatly improves the crosslinking density and the scrubbing resistance of a paint film, and can ensure that the paint film is plump and compact and has smoother hand feeling.
15. The ceramic powder is nano-scale ceramic powder with the fineness of 3000-5000 meshes, the whiteness is more than 95%, the main components are silicon dioxide and aluminum oxide, the dispersibility is good, the covering power is high, the density is small, the chemical stability is good, the adsorbability, the weather resistance and the scrubbing resistance of the coating can be greatly improved, the using amount of titanium dioxide can be reduced, and the production cost is reduced.
16. The titanium dioxide pigment adopts rutile type titanium dioxide, and has good light stability and higher covering rate.
17. The suspension thickener adopts the hydroxypropyl or hydroxyethyl cellulose with the viscosity of 8000-30000 MPa.s, has higher water retention, thickening and leveling effects, can ensure that a film forming substance is distributed more uniformly, a paint film is plump, and the construction performance is improved.
18. The anti-sagging agent adopts hydroxypropyl starch ether (HPS), the aqueous solution of the anti-sagging agent is transparent, colorless and good in stability, is stable to acid and alkali, has the function of improving the anti-gliding capability of the material, plays a role in suspension and thickening, and can enable a paint film to be smooth and fine.
19. The defoaming agent is an organosilicone dry powder defoaming agent, so that the viscosity in a system can be properly reduced, bubbles generated by stirring are prevented, and a pinhole is formed after the defoaming agent is coated, so that a paint film is smoother.
20. The modifier of the gray calcium is aluminum potassium sulfate dodecahydrate, namely alum, which can synthesize strong basicity of the gray calcium, prevent the gray calcium powder from yellowing and improve the stability of the pigment.
21. The nanometer calcium carbonate has whiteness of 95 percent and fineness of 2000-3000 meshes, has toughening and reinforcing effects, has steric hindrance effect, can improve the adhesive force and covering power of the coating, can partially replace expensive titanium dioxide, and reduces the production cost.
22. The nano kaolin has the whiteness of 95 percent and the fineness of 4000 meshes, has the effect of suspension and sedimentation prevention, has good covering performance and is easy to disperse in water.
23. The calcium hydroxide is food-grade calcium hydroxide with the fineness of more than 1250 meshes and the whiteness of 93 percent, can react with carbon dioxide to generate calcium carbonate, can be used as a white pigment to play a role of a skeleton, has the effects of water resistance and scrubbing resistance, is low in price and can reduce the cost.
24. The inorganic dry powder paint prepared from the raw materials of the components according to a proper proportion has low cost price and comprises the following components: the inorganic dry powder emulsion paint for interior walls and exterior walls has the advantages of high strength, good toughness, acid and alkali resistance, smooth hand feeling and plump paint film, and can be prepared by properly adjusting the addition amount of raw materials of each component, and all the functions can be detected by various national standards.
The specific implementation mode is as follows:
25. The technical scheme of the invention is described in detail by combining the embodiment, and the invention protects the scope of the right of the invention.
26. In the following examples, the dispersible latex powder was Deutsche 328N (south Beijing, Producens), the titanium dioxide was rutile titanium dioxide (Shandong Yuguang, Producens), the suspension thickener was hydroxypropyl methylcellulose, the viscosity was 20000 (), the anti-sagging agent was hydroxypropyl starch ether (Shandong Yiteng, Producens), the defoamer, the organosilicone powder defoamer G0701, the ash calcium modifier was aluminum potassium sulfate dodecahydrate, the fineness of the ceramic powder was 5000 mesh, the whiteness was 95% (Liyunnangwhanhua, Producens), the calcium hydroxide, the whiteness was 93%, and the mesh number was 1250 mesh in food grade (Zhejiang, Producens). The whiteness of the heavy calcium carbonate is 95 percent, the whiteness of the heavy calcium carbonate is more than 94 percent in 2000 meshes (Guangxi producing areas), the whiteness of the calcined kaolin is more than 4000 meshes, and the raw materials are commercially sold and are easy to purchase in inner Mongolia producing areas.
27. The implementation case is as follows:
(the percentages in the table are percentages by mass)
28. The raw materials of the components in the embodiment 1 are uniformly mixed to prepare the economical interior wall engineering paint, the economical interior wall engineering paint is mixed with water twice according to the proportion of 1:1.5, the painting area is large, the dry covering power is strong, the strength is high, the acid and alkali resistance is realized, the hand feeling is greasy, the paint film is plump, and all indexes meet the GB/T9756-2009 standard through testing, and the test result is as follows:
29. The raw materials of the components in the embodiment 2 are uniformly mixed to prepare the green environment-friendly home decoration interior wall paint, and the green environment-friendly home decoration interior wall paint can be used by adding water twice according to the proportion of 1:1.5, and the painting result is as follows: the paint film is plump, smooth in hand feeling, can be sprayed and coated, can adjust color, has excellent weather resistance and scrub resistance, and meets the GB/T9756-2009 standard in each index through testing, and the test result is as follows:
30. The raw materials of the components in the embodiment are uniformly mixed to prepare the ultra-weather-resistant exterior wall paint emulsion paint, and the emulsion paint can be sprayed and can be mixed with color by mixing water twice according to the proportion of 1:1.5, the scrubbing resistant frequency can reach more than 1000 times, the bottom is not exposed, the cost is only 30-40 percent of that of the traditional industrial exterior wall emulsion paint, and all tests meet the exterior wall paint standard of GB/T9756-2009.
Claims (9)
1. The inorganic dry powder paint is characterized by comprising the following raw materials in percentage by weight: 15% -25%, titanium dioxide: 0 to 10 percent of thickening and water retaining agent, 0.3 to 0.6 percent of anti-sagging agent: 0.5 to 1 percent of defoaming agent, 0.1 to 0.3 percent of ash calcium modifier, 0.4 to 0.8 percent of inorganic filler and 40 to 60 percent of inorganic filler.
2. The dry powder paint as claimed in claim 1, wherein the redispersible latex powder is an ethylene/vinyl acetate wax copolymer, a vinyl acetate/vinyl versatate copolymer, an acrylic acid copolymer, etc.
3. The inorganic dry powder paint as claimed in claim 1, wherein the titanium dioxide is rutile titanium dioxide.
4. The inorganic dry paint as claimed in claim 1, wherein the thickening and water retaining agent is hydroxyethyl cellulose or hydroxypropyl methylcellulose, and the viscosity is 8000-30000 MPa-s.
5. The dry powder paint as claimed in claim 1, wherein the anti-sagging agent is hydroxypropyl starch ether.
6. The dry powder paint as claimed in claim 1, wherein the defoaming agent is an organosiloxane dry powder defoaming agent.
7. The dry powder paint as claimed in claim 1, wherein the modifier is aluminum potassium sulfate dodecahydrate (alum).
8. The inorganic dry paint as claimed in claim 1, wherein the inorganic filler is 3000-5000 mesh nano-ceramic powder, 2000-mesh nano-calcium carbonate, 4000-mesh nano-kaolin, 1250-mesh food-grade calcium hydroxide, and the whiteness is more than 93%.
9. The method for preparing the dry powder paint as claimed in any one of claims 1 to 8, wherein the raw materials are weighed in proportion and mixed uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910042998.4A CN111440464A (en) | 2019-01-17 | 2019-01-17 | Inorganic dry powder paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910042998.4A CN111440464A (en) | 2019-01-17 | 2019-01-17 | Inorganic dry powder paint and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111440464A true CN111440464A (en) | 2020-07-24 |
Family
ID=71650522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910042998.4A Pending CN111440464A (en) | 2019-01-17 | 2019-01-17 | Inorganic dry powder paint and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111440464A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194436A (en) * | 2020-10-19 | 2021-01-08 | 广东博智林机器人有限公司 | Machine-sprayed putty material and preparation method thereof |
-
2019
- 2019-01-17 CN CN201910042998.4A patent/CN111440464A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112194436A (en) * | 2020-10-19 | 2021-01-08 | 广东博智林机器人有限公司 | Machine-sprayed putty material and preparation method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200724 |
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| WD01 | Invention patent application deemed withdrawn after publication |