CN110526666A - A kind of high strength sound foam concrete - Google Patents
A kind of high strength sound foam concrete Download PDFInfo
- Publication number
- CN110526666A CN110526666A CN201910914492.8A CN201910914492A CN110526666A CN 110526666 A CN110526666 A CN 110526666A CN 201910914492 A CN201910914492 A CN 201910914492A CN 110526666 A CN110526666 A CN 110526666A
- Authority
- CN
- China
- Prior art keywords
- high strength
- foam concrete
- agent
- concrete
- strength sound
- 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.)
- Pending
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 41
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 239000011381 foam concrete Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 19
- 239000011398 Portland cement Substances 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 17
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229920002472 Starch Polymers 0.000 claims abstract description 14
- 239000008107 starch Substances 0.000 claims abstract description 14
- 235000019698 starch Nutrition 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- 239000004088 foaming agent Substances 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 12
- RAFRTSDUWORDLA-UHFFFAOYSA-N phenyl 3-chloropropanoate Chemical compound ClCCC(=O)OC1=CC=CC=C1 RAFRTSDUWORDLA-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 11
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 11
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 9
- 239000010881 fly ash Substances 0.000 claims abstract description 9
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 9
- 239000010440 gypsum Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000004005 microsphere Substances 0.000 claims abstract description 5
- PSZYNBSKGUBXEH-UHFFFAOYSA-M naphthalene-1-sulfonate Chemical compound C1=CC=C2C(S(=O)(=O)[O-])=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-M 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000001802 infusion Methods 0.000 claims 1
- 238000009941 weaving Methods 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 10
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 4
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- -1 methylhydroxypropyl Chemical group 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
The invention discloses a kind of high strength sound foam concrete, consist of the following compositions: portland cement, flyash, compound foaming agent, desulfurized gypsum, fine silica powder, naphthalene sulfonate water-reducing agent, river sand, methylhydroxypropylcellulose ether, waterglass, plant fiber, calcium nitrite, sound insulation agent and water.The concrete square can be obviously improved the compression strength of concrete by the way that fine silica powder, waterglass and calcium nitrite is added；N doping starch base activated carbon microballon material is added as sound insulation agent, soundproof effect is very good, while the modified activated carbon micro-sphere material is added can also further promote the compression strength of concrete.
Description
Technical field
The present invention relates to technical field of concrete more particularly to a kind of high strength sound foam concrete.
Background technique
With economic development, the usage amount of concrete is increasing, and foam concrete is usually mechanically by foam
Agent aqueous solution is prepared into foam, then foam is added to the material containing compositions such as siliceous material, calcareous material, water and various additives
In slurry, through a kind of porous material made of mixing, moulding by casting, maintenance.
Conventional foam concrete is primarily upon its heat-proof quality at present, and the intensity and soundproof effect to foam concrete are closed
Note degree is inadequate, and soundproof effect especially how is improved under the premise of guaranteeing concrete strength still without effective method, therefore this
Invention provides a kind of high strength sound foam concrete.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of high strength sound foam concrete.
Technical scheme is as follows:
A kind of high strength sound foam concrete, consists of the following compositions: portland cement, flyash, compound foaming agent,
Desulfurized gypsum, fine silica powder, naphthalene sulfonate water-reducing agent, river sand, methylhydroxypropylcellulose ether, waterglass, plant fiber,
Calcium nitrite, sound insulation agent and water.
Preferably, the high strength sound foam concrete, by following percentage at being grouped as: portland cement
25-33%, flyash 15-20%, compound foaming agent 3-6%, desulfurized gypsum 1-3%, fine silica powder 2-5%, naphthalene sulfonic acids
Salt water-reducing agent 1-3%, river sand 10-15%, methylhydroxypropylcellulose ether 2-5%, waterglass 1-2%, plant fiber 2-5%,
Calcium nitrite 0.5-1%, sound insulation agent 2-4%, water surplus.
Preferably, the portland cement is the portland cement that strength of cement grade is at or above 42.5.
Preferably, the compound foaming agent is to be made of alkyl polyglucoside, pentaerythritol stearate, hydrogen peroxide.
Preferably, the river sand is the river sand that partial size is 1-3mm.
Preferably, the plant fiber be cotton fiber, flaxen fiber, in silk fiber any one or a variety of appoint
The combination of meaning ratio.
Preferably, the plant fiber is the leftover pieces of natural fiber in textile industry.
Preferably, the sound insulation agent is N doping starch base activated carbon microballon material.
It is further preferred that the N doping starch base activated carbon microballon material, diameter is 5-10 μm, specific surface area is
1000-3000m2/ g, nitrogen content 6-10%.
The invention has the beneficial effects that: high strength sound foam concrete of the invention consists of the following compositions: silicic acid
Salt cement, flyash, compound foaming agent, desulfurized gypsum, fine silica powder, naphthalene sulfonate water-reducing agent, river sand, methylhydroxypropyl
Cellulose ether, waterglass, plant fiber, calcium nitrite, sound insulation agent and water.The concrete square by be added fine silica powder,
Waterglass and calcium nitrite can be obviously improved the compression strength of concrete；N doping starch base activated carbon microballon material is added
As sound insulation agent, soundproof effect is very good, while the modified activated carbon micro-sphere material is added can also further promote concrete
Compression strength.
Specific embodiment
Embodiment 1:
A kind of high strength sound foam concrete, by following percentage at being grouped as: by following percentage at grouping
At: portland cement 28%, flyash 17%, compound foaming agent 5%, desulfurized gypsum 2%, fine silica powder 4%, naphthalene sulfonic acids
Salt water-reducing agent 1.5%, river sand 12%, methylhydroxypropylcellulose ether 3%, waterglass 1.5%, plant fiber 3%, calcium nitrite
0.8%, sound insulation agent 2.8%, water surplus.
The portland cement is the portland cement that strength of cement grade is 42.5.
The compound foaming agent is to be made of alkyl polyglucoside, pentaerythritol stearate, hydrogen peroxide.
The river sand is the river sand that partial size is 1-3mm.
The plant fiber is the leftover pieces of cotton fiber.
The sound insulation agent is N doping starch base activated carbon microballon material.
The N doping starch base activated carbon microballon material, diameter is 5-10 μm, specific surface area 1000-3000m2/
G, nitrogen content 6-10%.
Embodiment 2:
A kind of high strength sound foam concrete, by following percentage at being grouped as: by following percentage at grouping
At: portland cement 33%, flyash 15%, compound foaming agent 6%, desulfurized gypsum 1%, fine silica powder 5%, naphthalene sulfonic acids
Salt water-reducing agent 1%, river sand 15%, methylhydroxypropylcellulose ether 2%, waterglass 2%, plant fiber 2%, calcium nitrite 1%,
Sound insulation agent 2%, water surplus.
The portland cement is the portland cement that strength of cement grade is 42.5R.
The compound foaming agent is to be made of alkyl polyglucoside, pentaerythritol stearate, hydrogen peroxide.
The river sand is the river sand that partial size is 1-3mm.
The plant fiber be cotton fiber, flaxen fiber, silk fiber composite fibre leftover pieces.
The sound insulation agent is N doping starch base activated carbon microballon material.
The N doping starch base activated carbon microballon material, diameter is 5-10 μm, specific surface area 1000-3000m2/
G, nitrogen content 6-10%.
Embodiment 3:
A kind of high strength sound foam concrete, by following percentage at being grouped as: by following percentage at grouping
At: portland cement 25%, flyash 20%, compound foaming agent 3%, desulfurized gypsum 3%, fine silica powder 2%, naphthalene sulfonic acids
Salt water-reducing agent 3%, river sand 10%, methylhydroxypropylcellulose ether 5%, waterglass 1%, plant fiber 5%, calcium nitrite
0.5%, sound insulation agent 4%, water surplus.
The portland cement is the portland cement that strength of cement grade is 42.5.
The compound foaming agent is to be made of alkyl polyglucoside, pentaerythritol stearate, hydrogen peroxide.
The river sand is the river sand that partial size is 1-3mm.
The plant fiber is the leftover pieces of cotton fiber and flaxen fiber composite fibre.
The sound insulation agent is N doping starch base activated carbon microballon material.
The N doping starch base activated carbon microballon material, diameter is 5-10 μm, specific surface area 1000-3000m2/
G, nitrogen content 6-10%.
Comparative example 1
N doping starch base activated carbon microballon material in embodiment 1 is replaced with into conventional absorbent charcoal material, remaining is matched
Than constant.
Comparative example 2
By the N doping starch base activated carbon microballon material removal in embodiment 1, remaining proportion is constant.
The sample of embodiment 1-3 and comparative example 1-2 are tested for the property below, obtain following test result, it is specific to survey
Test result is shown in Table 1.
Table 1: the performance test results of sample:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | |
| Density (kg/m3) | 315 | 318 | 312 | 315 | 332 |
| 28d compression strength (MPa) | 7.82 | 7.78 | 7.71 | 3.19 | 2.85 |
| Sound insulation coefficient (dB) | 97 | 94 | 99 | 67 | 46 |
By the above test data it is recognised that N doping starch is added using high strength sound foam concrete of the invention
Matrix activated carbon micro-sphere material can be obviously improved the compression strength and soundproof effect of concrete.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of high strength sound foam concrete, which is characterized in that consist of the following compositions: portland cement, is answered at flyash
Close infusion, desulfurized gypsum, fine silica powder, naphthalene sulfonate water-reducing agent, river sand, methylhydroxypropylcellulose ether, waterglass,
Plant fiber, calcium nitrite, sound insulation agent and water.
2. high strength sound foam concrete as described in claim 1, which is characterized in that by following percentage at grouping
At: portland cement 25-33%, flyash 15-20%, compound foaming agent 3-6%, desulfurized gypsum 1-3%, fine silica powder
2-5%, naphthalene sulfonate water-reducing agent 1-3%, river sand 10-15%, methylhydroxypropylcellulose ether 2-5%, waterglass 1-2%, plant
Fiber 2-5%, calcium nitrite 0.5-1%, sound insulation agent 2-4%, water surplus.
3. high strength sound foam concrete as described in claim 1, which is characterized in that the portland cement is cement
Strength grade is at or above 42.5 portland cement.
4. high strength sound foam concrete as described in claim 1, which is characterized in that the compound foaming agent is by alkane
Base polyglucoside, pentaerythritol stearate, hydrogen peroxide composition.
5. high strength sound foam concrete as described in claim 1, which is characterized in that the river sand is that partial size is 1-
The river sand of 3mm.
6. high strength sound foam concrete described in claim 1, which is characterized in that the plant fiber be cotton fiber,
The combination of any one or a variety of any ratios in flaxen fiber, silk fiber.
7. high strength sound foam concrete as described in claim 1, which is characterized in that the plant fiber is weaving row
The leftover pieces of natural fiber in industry.
8. high strength sound foam concrete as described in claim 1, which is characterized in that the sound insulation agent is N doping shallow lake
Powder matrix activated carbon micro-sphere material.
9. high strength sound foam concrete as claimed in claim 8, which is characterized in that the N doping starch base activity
Carbon microspheres material, diameter is 5-10 μm, specific surface area 1000-3000m2/ g, nitrogen content 6-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910914492.8A CN110526666A (en) | 2019-09-25 | 2019-09-25 | A kind of high strength sound foam concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910914492.8A CN110526666A (en) | 2019-09-25 | 2019-09-25 | A kind of high strength sound foam concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110526666A true CN110526666A (en) | 2019-12-03 |
Family
ID=68670160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910914492.8A Pending CN110526666A (en) | 2019-09-25 | 2019-09-25 | A kind of high strength sound foam concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110526666A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960767A (en) * | 2020-08-22 | 2020-11-20 | 山东华森兴隆混凝土有限公司 | Low-noise concrete and preparation method thereof |
| CN115093180A (en) * | 2022-07-01 | 2022-09-23 | 中德新亚建筑材料有限公司 | Anti-freezing type non-shrinkage grouting material and preparation method thereof |
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| US20060059852A1 (en) * | 2004-09-23 | 2006-03-23 | Certainteed Corporation | Laminated building materials |
| CN104774033A (en) * | 2015-04-08 | 2015-07-15 | 西南科技大学 | General purpose Portland cement based ultra-light physical foamed concrete |
| CN104803704A (en) * | 2015-04-03 | 2015-07-29 | 四川雅豪房地产开发有限公司 | Soundproof and heatproof light weight foam concrete |
| CN105585330A (en) * | 2015-12-17 | 2016-05-18 | 乔生艮 | Energy-saving heat-insulating aerated concrete block and preparation method thereof |
| CN105669126A (en) * | 2016-01-13 | 2016-06-15 | 王湖彬 | High-strength foam insulation concrete and production method thereof |
| CN105948045A (en) * | 2016-07-18 | 2016-09-21 | 湘潭大学 | Preparation method and application of nitrogen-doped starch-based activated carbon microsphere material |
| CN108395274A (en) * | 2018-05-02 | 2018-08-14 | 宁波普利凯建筑科技有限公司 | A kind of light high-strength haydite foam concrete and preparation method thereof |
-
2019
- 2019-09-25 CN CN201910914492.8A patent/CN110526666A/en active Pending
Patent Citations (7)
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| US20060059852A1 (en) * | 2004-09-23 | 2006-03-23 | Certainteed Corporation | Laminated building materials |
| CN104803704A (en) * | 2015-04-03 | 2015-07-29 | 四川雅豪房地产开发有限公司 | Soundproof and heatproof light weight foam concrete |
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| CN111960767A (en) * | 2020-08-22 | 2020-11-20 | 山东华森兴隆混凝土有限公司 | Low-noise concrete and preparation method thereof |
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| CN115093180A (en) * | 2022-07-01 | 2022-09-23 | 中德新亚建筑材料有限公司 | Anti-freezing type non-shrinkage grouting material and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191203 |