CN107867805A - A kind of high strength cement and preparation method thereof - Google Patents
A kind of high strength cement and preparation method thereof Download PDFInfo
- Publication number
- CN107867805A CN107867805A CN201711245221.5A CN201711245221A CN107867805A CN 107867805 A CN107867805 A CN 107867805A CN 201711245221 A CN201711245221 A CN 201711245221A CN 107867805 A CN107867805 A CN 107867805A
- Authority
- CN
- China
- Prior art keywords
- parts
- weight
- high strength
- strength cement
- slag
- 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
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
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
- C04B7/21—Mixtures thereof with other inorganic cementitious materials or other activators with calcium sulfate containing activators
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/02—Portland cement
- C04B7/04—Portland cement using raw materials containing gypsum, i.e. processes of the Mueller-Kuehne type
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a kind of high strength cement and preparation method thereof, prepared using the following raw material：The parts by weight of Portland clinker 100 400, the parts by weight of slag 10 30, the parts by weight of manganese slag 5 16, the parts by weight of glass bead 26, the parts by weight of dolomite dust 20 40, the parts by weight of gypsum 30 50, the parts by weight of titanate esters 15, the parts by weight of calcium sulfate 15 25, the parts by weight of flyash 20 40, the parts by weight of sandstone 30 50, the parts by weight of potassium dihydrogen phosphate 38, the parts by weight of polyvinyl alcohol 20 40, the parts by weight of wooden sodium sulfonate 15.From above scheme it can be seen that; the present invention is using Portland clinker, slag, manganese slag, glass bead, dolomite dust, gypsum, titanate esters, calcium sulfate, flyash, sandstone, potassium dihydrogen phosphate, polyvinyl alcohol, wooden sodium sulfonate as raw material; each interaction between component, influence each other; the intensity of cement is improved, there is good combination property.
Description
Technical field
The present invention relates to cement technology field, more particularly to a kind of high strength cement and preparation method thereof.
Background technology
Cement is powdery hydraulicity inorganic coagulation material.Add water stir after into slurry, can harden in atmosphere or in water
In preferably harden, and can the materials such as sand, stone is cemented together securely.The species of cement is more, can be with according to purposes point
It is divided into general-purpose cement, cement special, characteristic cement etc..
In the prior art, cement and preparation method thereof has been obtained for widely reporting, for example, Application No.
201510636761.0 Chinese patent literature report a kind of thermal insulation cement slurry and preparation method thereof；The thermal insulation separation hot water
Mud includes cement, heat preserving and insulating material, quartz sand, SILICA FUME, early strength agent, swelling agent, additive, water.Application No.
201610484149.0 Chinese patent literature reports a kind of cement heat preserving heat-barrier material, its by following parts by weight raw material
It is made：Light burnt powder 9-15 parts, silicon powder 3-8 parts, modifying agent 4-9 parts, dioctyl phthalate 12-18 parts, calcium carbonate 6-9
Part, modified ardealite 7-11 parts, dodecyl sodium sulfate 4-8 parts, 80 mesh rosin 12-17 parts, aluminous refractory cement 12-18
Part, cellulose ether 4-8 parts, cellulose ether 3-8 parts, aluminium polychloride 2-7 parts, lime stone 7-9 parts, styrene-acrylic emulsion 11-18 parts, close
Hole expanded perlite 8-12 parts.The Chinese patent literature of Application No. 201610516292.3 report a kind of durable cement every
Hot warming plate, it is prepared from the following raw materials in parts by weight：Bentonite 11-16 parts, air entraining agent 3-8 parts, glass bead 4-10 parts,
Talcum powder 10-13 parts, stalk 8-12 parts, quartz sand 11-18 parts, Corvic 12-18 parts, age resister 5-6 parts, clinker
20-28 parts, fluorgypsum 6-10 parts, fluorine-contaninig polyacrylate latex powder 3.5-10 parts, calcium hydroxide 4.5-9 parts, alum 3-6 parts,
Portland cement 21-29 parts, alumina silicate fibre 8-12 parts, calcine desulfurization gypsum powder 7-11 parts, grey calcium 6-8 parts.
It is considered as desirable by the inventor to, there is provided a kind of high strength cement and preparation method thereof, there is the characteristics of compression strength is high, improve
The using effect of cement.
The content of the invention
Present invention solves the technical problem that being to provide a kind of high strength cement and preparation method thereof, have compression strength high
The characteristics of.
In view of this, the invention provides a kind of high strength cement, prepared using the following raw material：Portland clinker
100-400 parts by weight, slag 10-30 parts by weight, manganese slag 5-16 parts by weight, glass bead 2-6 parts by weight, dolomite dust 20-40
Parts by weight, gypsum 30-50 parts by weight, titanate esters 1-5 parts by weight, calcium sulfate 15-25 parts by weight, flyash 20-40 parts by weight, sand
Rock 30-50 parts by weight, potassium dihydrogen phosphate 3-8 parts by weight, polyvinyl alcohol 20-40 parts by weight, wooden sodium sulfonate's 1-5 parts by weight.
Preferably, slag 20-30 parts by weight.
Preferably, manganese slag 6-15 parts by weight.
Preferably, glass bead 2-5 parts by weight.
Preferably, dolomite dust 30-40 parts by weight.
Preferably, titanate esters 2-5 parts by weight.
Preferably, calcium sulfate 20-25 parts by weight.
Preferably, sandstone 40-50 parts by weight.
Preferably, potassium dihydrogen phosphate 3-7 parts by weight.
Accordingly, the present invention also provides a kind of preparation method of high strength cement, comprises the following steps：By portland cement
Clinker 100-400 parts by weight, slag 10-30 parts by weight, manganese slag 5-16 parts by weight, glass bead 2-6 parts by weight, dolomite dust
20-40 parts by weight, gypsum 30-50 parts by weight, titanate esters 1-5 parts by weight, calcium sulfate 15-25 parts by weight, flyash 20-40 weight
Part, sandstone 30-50 parts by weight, potassium dihydrogen phosphate 3-8 parts by weight, polyvinyl alcohol 20-40 parts by weight, wooden sodium sulfonate's 1-5 weight
Part mixing, dry method grinding obtains high strength cement to 100-300 mesh in ball mill.
From above scheme as can be seen that the present invention provides a kind of high strength cement and preparation method thereof, using the following raw material
Prepare：Portland clinker 100-400 parts by weight, slag 10-30 parts by weight, manganese slag 5-16 parts by weight, glass bead 2-6 weights
Measure part, dolomite dust 20-40 parts by weight, gypsum 30-50 parts by weight, titanate esters 1-5 parts by weight, calcium sulfate 15-25 parts by weight, powder
It is coal ash 20-40 parts by weight, sandstone 30-50 parts by weight, potassium dihydrogen phosphate 3-8 parts by weight, polyvinyl alcohol 20-40 parts by weight, wooden
Sodium sulfonate 1-5 parts by weight.From above scheme as can be seen that the present invention with Portland clinker, slag, manganese slag, glass bead,
Dolomite dust, gypsum, titanate esters, calcium sulfate, flyash, sandstone, potassium dihydrogen phosphate, polyvinyl alcohol, wooden sodium sulfonate are raw material,
Each interaction between component, influence each other, improve the intensity of cement, there is good combination property.
Embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, still
It should be appreciated that these descriptions are simply further explanation the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
The embodiment of the invention discloses the invention provides a kind of high strength cement, prepared using the following raw material：Silicate
Clinker 100-400 parts by weight, slag 10-30 parts by weight, manganese slag 5-16 parts by weight, glass bead 2-6 parts by weight, dolomite
Powder 20-40 parts by weight, gypsum 30-50 parts by weight, titanate esters 1-5 parts by weight, calcium sulfate 15-25 parts by weight, flyash 20-40 weights
Measure part, sandstone 30-50 parts by weight, potassium dihydrogen phosphate 3-8 parts by weight, polyvinyl alcohol 20-40 parts by weight, wooden sodium sulfonate 1-5 weights
Measure part.
Preferably, slag 20-30 parts by weight, manganese slag 6-15 parts by weight, glass bead 2-5 parts by weight, dolomite
Powder 30-40 parts by weight, titanate esters 2-5 parts by weight, calcium sulfate 20-25 parts by weight, sandstone 40-50 parts by weight, potassium dihydrogen phosphate 3-7
Parts by weight.
Accordingly, the present invention also provides a kind of preparation method of high strength cement, comprises the following steps：By portland cement
Clinker 100-400 parts by weight, slag 10-30 parts by weight, manganese slag 5-16 parts by weight, glass bead 2-6 parts by weight, dolomite dust
20-40 parts by weight, gypsum 30-50 parts by weight, titanate esters 1-5 parts by weight, calcium sulfate 15-25 parts by weight, flyash 20-40 weight
Part, sandstone 30-50 parts by weight, potassium dihydrogen phosphate 3-8 parts by weight, polyvinyl alcohol 20-40 parts by weight, wooden sodium sulfonate's 1-5 weight
Part mixing, dry method grinding obtains high strength cement to 100-300 mesh in ball mill.
From above scheme as can be seen that the present invention is with Portland clinker, slag, manganese slag, glass bead, dolomite
Powder, gypsum, titanate esters, calcium sulfate, flyash, sandstone, potassium dihydrogen phosphate, polyvinyl alcohol, wooden sodium sulfonate are raw material, Ge Gecheng
Split-phase interaction, influence each other, improve the intensity of cement, there is good combination property.
For a further understanding of the present invention, technical scheme provided by the invention is carried out specifically with reference to embodiment
Bright, protection scope of the present invention is not limited by the following examples.
The raw material that the embodiment of the present invention uses is purchased in market.
Embodiment 1
By parts by weight of the Portland clinker 100, parts by weight of slag 30, the parts by weight of manganese slag 5, the parts by weight of glass bead 6, white
The parts by weight of marble dust 20, the parts by weight of gypsum 50, the parts by weight of titanate esters 1, the parts by weight of calcium sulfate 25, the parts by weight of flyash 20, sandstone
50 parts by weight, the parts by weight of potassium dihydrogen phosphate 3, the parts by weight of polyvinyl alcohol 40, the parts by weight mixing of wooden sodium sulfonate 1, in ball mill
Dry method grinding obtains high strength cement to 200 mesh.
The performance of high strength cement manufactured in the present embodiment is detected, the compression strength of 1 day is 46MPa, 5 days anti-
Compressive Strength is 60MPa, and the compression strength of 10 days is 78MPa.
Embodiment 2
By the parts by weight of Portland clinker 400, the parts by weight of slag 10, the parts by weight of manganese slag 16, the parts by weight of glass bead 2,
The parts by weight of dolomite dust 40, the parts by weight of gypsum 30, the parts by weight of titanate esters 5, the parts by weight of calcium sulfate 15, the parts by weight of flyash 40, sand
The parts by weight of rock 30, the parts by weight of potassium dihydrogen phosphate 8, the parts by weight of polyvinyl alcohol 20, the parts by weight mixing of wooden sodium sulfonate 5, in ball mill
Middle dry method grinding obtains high strength cement to 200 mesh.
The performance of high strength cement manufactured in the present embodiment is detected, the compression strength of 1 day is 44MPa, 5 days anti-
Compressive Strength is 59MPa, and the compression strength of 10 days is 77MPa.
Embodiment 3
By the parts by weight of Portland clinker 400, the parts by weight of slag 30, the parts by weight of manganese slag 16, the parts by weight of glass bead 2,
The parts by weight of dolomite dust 20, the parts by weight of gypsum 30, the parts by weight of titanate esters 5, the parts by weight of calcium sulfate 25, the parts by weight of flyash 20, sand
The parts by weight of rock 30, the parts by weight of potassium dihydrogen phosphate 8, the parts by weight of polyvinyl alcohol 40, the parts by weight mixing of wooden sodium sulfonate 1, in ball mill
Middle dry method grinding obtains high strength cement to 200 mesh.
The performance of high strength cement manufactured in the present embodiment is detected, the compression strength of 1 day is 46MPa, 5 days anti-
Compressive Strength is 57MPa, and the compression strength of 10 days is 73MPa.
Embodiment 4
By the parts by weight of Portland clinker 200, the parts by weight of slag 20, the parts by weight of manganese slag 10, the parts by weight of glass bead 4,
The parts by weight of dolomite dust 30, the parts by weight of gypsum 40, the parts by weight of titanate esters 3, the parts by weight of calcium sulfate 20, the parts by weight of flyash 30, sand
The parts by weight of rock 40, the parts by weight of potassium dihydrogen phosphate 6, the parts by weight of polyvinyl alcohol 30, the parts by weight mixing of wooden sodium sulfonate 3, in ball mill
Middle dry method grinding obtains high strength cement to 200 mesh.
The performance of high strength cement manufactured in the present embodiment is detected, the compression strength of 1 day is 44MPa, 5 days anti-
Compressive Strength is 59MPa, and the compression strength of 10 days is 76MPa.
Embodiment 5
By the parts by weight of Portland clinker 300, the parts by weight of slag 25, the parts by weight of manganese slag 15, the parts by weight of glass bead 3,
The parts by weight of dolomite dust 25, the parts by weight of gypsum 45, the parts by weight of titanate esters 2, the parts by weight of calcium sulfate 16, the parts by weight of flyash 25, sand
The parts by weight of rock 45, the parts by weight of potassium dihydrogen phosphate 7, the parts by weight of polyvinyl alcohol 25, the parts by weight mixing of wooden sodium sulfonate 4, in ball mill
Middle dry method grinding obtains high strength cement to 200 mesh.
The performance of high strength cement manufactured in the present embodiment is detected, the compression strength of 1 day is 47MPa, 5 days anti-
Compressive Strength is 61MPa, and the compression strength of 10 days is 79MPa.
The explanation of above example is only intended to help the method and its core concept for understanding the present invention.It should be pointed out that pair
For those skilled in the art, under the premise without departing from the principles of the invention, the present invention can also be carried out
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of high strength cement, it is characterised in that prepared using the following raw material：
Portland clinker 100-400 parts by weight, slag 10-30 parts by weight, manganese slag 5-16 parts by weight, glass bead 2-6 weights
Measure part, dolomite dust 20-40 parts by weight, gypsum 30-50 parts by weight, titanate esters 1-5 parts by weight, calcium sulfate 15-25 parts by weight, powder
It is coal ash 20-40 parts by weight, sandstone 30-50 parts by weight, potassium dihydrogen phosphate 3-8 parts by weight, polyvinyl alcohol 20-40 parts by weight, wooden
Sodium sulfonate 1-5 parts by weight.
2. high strength cement according to claim 1, it is characterised in that slag 20-30 parts by weight.
3. high strength cement according to claim 1, it is characterised in that manganese slag 6-15 parts by weight.
4. high strength cement according to claim 1, it is characterised in that glass bead 2-5 parts by weight.
5. high strength cement according to claim 1, it is characterised in that dolomite dust 30-40 parts by weight.
6. high strength cement according to claim 1, it is characterised in that titanate esters 2-5 parts by weight.
7. high strength cement according to claim 1, it is characterised in that calcium sulfate 20-25 parts by weight.
8. high strength cement according to claim 1, it is characterised in that sandstone 40-50 parts by weight.
9. high strength cement according to claim 1, it is characterised in that potassium dihydrogen phosphate 3-7 parts by weight.
10. a kind of preparation method of high strength cement, it is characterised in that comprise the following steps：By Portland clinker 100-
400 parts by weight, slag 10-30 parts by weight, manganese slag 5-16 parts by weight, glass bead 2-6 parts by weight, dolomite dust 20-40 weight
Part, gypsum 30-50 parts by weight, titanate esters 1-5 parts by weight, calcium sulfate 15-25 parts by weight, flyash 20-40 parts by weight, sandstone
30-50 parts by weight, potassium dihydrogen phosphate 3-8 parts by weight, polyvinyl alcohol 20-40 parts by weight, wooden sodium sulfonate's 1-5 parts by weight mixing,
Dry method grinding obtains high strength cement to 100-300 mesh in ball mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711245221.5A CN107867805A (en) | 2017-11-30 | 2017-11-30 | A kind of high strength cement and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711245221.5A CN107867805A (en) | 2017-11-30 | 2017-11-30 | A kind of high strength cement and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107867805A true CN107867805A (en) | 2018-04-03 |
Family
ID=61754954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711245221.5A Pending CN107867805A (en) | 2017-11-30 | 2017-11-30 | A kind of high strength cement and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107867805A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896024A (en) * | 2005-07-11 | 2007-01-17 | 张卫党 | High-performance cement and concrete and their production |
| CN101948254A (en) * | 2010-09-15 | 2011-01-19 | 北京科技大学 | Method for preparing electrolytic manganese slag ecological cement |
| CN102557495A (en) * | 2012-02-27 | 2012-07-11 | 武汉理工大学 | Method for enhancing early strength of steel slag cement |
| CN103880310A (en) * | 2014-02-20 | 2014-06-25 | 辽宁石化职业技术学院 | Portland blast furnace slag cement and preparation method thereof |
| CN107200486A (en) * | 2017-07-11 | 2017-09-26 | 陕西北元化工集团股份有限公司 | A kind of highly doped industrial residue cement and preparation method thereof |
-
2017
- 2017-11-30 CN CN201711245221.5A patent/CN107867805A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896024A (en) * | 2005-07-11 | 2007-01-17 | 张卫党 | High-performance cement and concrete and their production |
| CN101948254A (en) * | 2010-09-15 | 2011-01-19 | 北京科技大学 | Method for preparing electrolytic manganese slag ecological cement |
| CN102557495A (en) * | 2012-02-27 | 2012-07-11 | 武汉理工大学 | Method for enhancing early strength of steel slag cement |
| CN103880310A (en) * | 2014-02-20 | 2014-06-25 | 辽宁石化职业技术学院 | Portland blast furnace slag cement and preparation method thereof |
| CN107200486A (en) * | 2017-07-11 | 2017-09-26 | 陕西北元化工集团股份有限公司 | A kind of highly doped industrial residue cement and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6332988B2 (en) | Refractory mortar | |
| AU2014359207B2 (en) | Binder composition for improved mortars and coatings | |
| CN106316172B (en) | Fine high intensity High-belite Cement and preparation method thereof | |
| CN102173700B (en) | Minimum inflation low heat silicate cement | |
| CN107200544A (en) | A kind of energy-conserving and environment-protective construction material and preparation method thereof | |
| CN103396077A (en) | Crack-resistant thermal insulation mortar | |
| CN106866090B (en) | Cement-free desulfurized gypsum plastering mortar and preparation method thereof | |
| CN106673553B (en) | A kind of low cost ceramic tile adhesive and preparation method thereof | |
| CN103717549A (en) | Mortar or concrete composition using coal ash, and usage thereof | |
| JP2012515128A (en) | Hydraulic cement assembly for heat insulation and heat reflection products | |
| CN103496903A (en) | Thermal mortar | |
| CN104193201A (en) | Environment-friendly and energy-saving masonry cement | |
| CN104591582B (en) | A kind of preparation method of the cement intensifier that can improve cement products intensity | |
| CN103922619A (en) | Desulfurized gypsum-based hydraulic cementing material | |
| CN104860587B (en) | A kind of double-decker flexibility finishing material and preparation method thereof | |
| CN104446204A (en) | Plastering type premixed mortar | |
| CN104003672A (en) | High strength hollow brick | |
| CN107867805A (en) | A kind of high strength cement and preparation method thereof | |
| KR20150010072A (en) | Method of manufacturing ecofriendly sidewalk blocks and them thereof | |
| CN107082587B (en) | A kind of preparation method of calcium sulphate retarder | |
| CN108178540A (en) | A kind of ferrous aluminate cement clinker | |
| CN103723962A (en) | Vitrified particulate heat-insulated mortar for buildings | |
| RU2659288C1 (en) | Crude mixture for producing finishing structural materials | |
| CN106747017A (en) | Baking-free brick-making is formulated | |
| CN104773972B (en) | A kind of preparation method of the mineral additive being primary raw material with dickite that can improve portland cement intensity |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180403 |