CN110002802A - A kind of prestress hole path pressure grouting agent and preparation method thereof - Google Patents
A kind of prestress hole path pressure grouting agent and preparation method thereof Download PDFInfo
- Publication number
- CN110002802A CN110002802A CN201910246410.7A CN201910246410A CN110002802A CN 110002802 A CN110002802 A CN 110002802A CN 201910246410 A CN201910246410 A CN 201910246410A CN 110002802 A CN110002802 A CN 110002802A
- Authority
- CN
- China
- Prior art keywords
- agent
- parts
- water
- hole path
- path pressure
- 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
- 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
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)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of prestress hole path pressure grouting agent and preparation method thereof, including solid material and moist raw material, the solid material includes ordinary fly ash, redispersible latex powder, high-activity mineral matter and active material, the moist raw material includes water-reducing agent, adjustable solidification agent, thixotropic agent, defoaming agent, water-retaining agent, the component of each raw material weight number are as follows: 400-500 parts of ordinary fly ash, 60-80 parts of redispersible latex powder, 300-360 parts of mineral admixture, 30-50 parts of active material, 20-40 parts of water-reducing agent, 6-8 parts of adjustable solidification agent, 3-5 parts of thixotropic agent, 4-6 parts of defoaming agent, 30-40 parts of water-retaining agent, the water-reducing agent is lignosulfonates based water reducer, naphthalene series high-efficiency water-reducing agent and polycarboxylate high performance water-reducing agent mixture, and volume ratio is 2: 1: 1, the water-retaining agent is sodium base bentonite and low-viscosity hydroxypropylmethylc,llulose.The prestress hole path pressure grouting agent and preparation method thereof not only has efficient mobility, but also workability is good, is suitble to universal on a large scale and promotes.
Description
Technical field
The invention belongs to grouting agent technical fields, and in particular to a kind of prestress hole path pressure grouting agent further relates to a kind of prestressing force
The preparation method of hole path pressure grouting agent.
Background technique
Grouting agent (material) has microdilatancy, ungauged regions, big flowing, self-compaction, extremely low bleeding rate, fullness degree height, air bag foam
The thin diameter of layer is small, intensity is high, antirust resistance rust, low alkali out of chloride, bond degree height, environmentally protective excellent performance.It is pre- for post-tensioning beam
The press mortar of stress pipeline pack, the anti-corrosion for preventing prestressing steel guarantee between prestressing tendon and concrete structure effectively
Stress transfer, keep slurry in duct full closely knit, slurry keeps certain pH range, fully wrapped around prestressing steel, slurry
There are higher intensity and elasticity modulus and expansion shrinkage-void and bonding force after body hardening.
Suitable for the girder pre-stressed pipeline pack mud jacking of post-tensioning, the anchor grouting of earth anchor system, the grouting of continuous wall head leak-stopping, enclose
Curtain grouting etc., for high strength steel prestressed concrete member pore grout, road bridge strengthening, for 24 hours after can run, and with it is hard
Change concrete binding is secured, repairs without sharp trace, and slurry setting time is controllably i.e. moderate.But the rheology of existing grouting agent
Performance is general, and during specifically used, operability performance is not high.
Therefore it is directed to this status, there is an urgent need to design a kind of prestress hole path pressure grouting agent and preparation method thereof, to meet
The needs of actual use.
Summary of the invention
The purpose of the present invention is to provide a kind of prestress hole path pressure grouting agent and preparation method thereof, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme: a kind of prestress hole path pressure grouting agent, including solid are former
Material and moist raw material, the solid material include ordinary fly ash, redispersible latex powder, high-activity mineral matter and active material
Material, the moist raw material includes water-reducing agent, adjustable solidification agent, thixotropic agent, defoaming agent, water-retaining agent, the component of each raw material weight number are as follows:
400-500 parts of ordinary fly ash, 60-80 parts of redispersible latex powder, 200-240 parts of high-activity mineral matter, active material 30-
50 parts, 20-40 parts of water-reducing agent, 6-8 parts of adjustable solidification agent, 3-5 parts of thixotropic agent, 4-6 parts of defoaming agent, 30-40 parts of water-retaining agent.
Preferably, the water-reducing agent is lignosulfonates based water reducer, naphthalene series high-efficiency water-reducing agent and the high property of polycarboxylic-acid
Energy diminishing agent composition, and volume ratio is 2: 1: 1.
Preferably, the water-retaining agent is sodium base bentonite and low-viscosity hydroxypropylmethylc,llulose, and weight ratio is 3: 2.
Preferably, the defoaming agent is any one in organic oxygen alkane defoaming agent, polyether antifoam agent and organic silicon defoamer
Kind, the adjustable solidification agent is the mixture of sodium gluconate, sucrose and dextrin, and weight ratio is 2: 2: 1.
Preferably, the adjustable solidification agent is the mixture of sodium gluconate, sucrose and dextrin, and weight ratio is 2: 2: 1.
Preferably, the thixotropic agent is the compound of polyvinyl glue and hydroxypropyl methyl cellulose ether, and weight ratio is 2: 3,
The redispersible latex powder is set as one acetate ethylene copolymer of ethylene.
Preferably, the active material is calcium oxide and bentonitic mixture, mixes, is dried according to 2: 3 ratio
Dry grinding is made, and the ordinary fly ash is C class or F class flyash of the grade not less than II grades.
A kind of preparation method of prestress hole path pressure grouting agent, comprising the following steps:
The preparation of S1, solid material: solid material is mixed according to glass, by solid material benefits more than 300 mesh
It is ground with grinder, until meeting 300 mesh；
S2, mixing: moist raw material is mixed, and is stirred mixing using blender, is imported solid after the completion of mixing
Then raw material is mixed again, obtain grouting agent；
Metering packing is carried out after S3, inspection.
Preferably, the model of the grinder is set as flood and rises SDF0.4, and the blender model is set as TFS1.5, the
Mixing time is 7min, and second of mixing time is 25min, revolving speed 800r/min.
Technical effect and advantage of the invention: the prestress hole path pressure grouting agent and preparation method thereof passes through increased diminishing
Agent and thixotropic agent change the rheological property of grouting agent, enhancing it can so that grouting agent has high fluidity and stability significantly
Operability, by the water-retaining agent of addition, so that grouting agent does not isolate in 3 hours used, slurry workability is good, by setting
The adjustable solidification agent set, accelerates the rate of set of grouting agent, promotes working efficiency, the prestress hole path pressure grouting agent and preparation method thereof,
Not only there is efficient mobility, but also workability is good, be suitble to universal on a large scale and promote.
Specific embodiment
Below in conjunction with the contents of the present invention, the technical solution in the content of present invention is clearly and completely described, is shown
So, described content is only a part of content of the present invention, rather than whole contents.Based on the content in the present invention, originally
Field those of ordinary skill every other content obtained without making creative work, belongs to guarantor of the present invention
The range of shield.
Embodiment 1
The present invention provides a kind of prestress hole path pressure grouting agent, including solid material and moist raw material, the solid materials
Including ordinary fly ash, redispersible latex powder, high-activity mineral matter and active material, the moist raw material includes diminishing
Agent, adjustable solidification agent, thixotropic agent, defoaming agent, water-retaining agent, the component of each raw material weight number are as follows: 400 parts of ordinary fly ash, can divide again
Scattered 60 parts of property latex powder, 200 parts of high-activity mineral matter, 30 parts of active material, 20 parts of water-reducing agent, 6 parts of adjustable solidification agent, 3 parts of thixotropic agent,
4 parts of defoaming agent, 30 parts of water-retaining agent.
Specifically, the water-reducing agent is lignosulfonates based water reducer, naphthalene series high-efficiency water-reducing agent and the high property of polycarboxylic-acid
Energy diminishing agent composition, and volume ratio is 2: 1: 1.
Specifically, the water-retaining agent is sodium base bentonite and low-viscosity hydroxypropylmethylc,llulose, and weight ratio is 3: 2.
Specifically, the defoaming agent is any one in organic oxygen alkane defoaming agent, polyether antifoam agent and organic silicon defoamer
Kind, the adjustable solidification agent is the mixture of sodium gluconate, sucrose and dextrin, and weight ratio is 2: 2: 1.
Specifically, the adjustable solidification agent is the mixture of sodium gluconate, sucrose and dextrin, and weight ratio is 2: 2: 1.
Specifically, the thixotropic agent is the compound of polyvinyl glue and hydroxypropyl methyl cellulose ether, and weight ratio is 2: 3,
The redispersible latex powder is set as ethylene-vinyl acetate copolymer.
Specifically, the active material is calcium oxide and bentonitic mixture, mixes, dried according to 2: 3 ratio
Dry grinding is made, and the ordinary fly ash is C class or F class flyash of the grade not less than II grades.
A kind of preparation method of prestress hole path pressure grouting agent, comprising the following steps:
The preparation of S1, solid material: solid material is mixed according to glass, by solid material benefits more than 300 mesh
It is ground with grinder, until meeting 300 mesh；
S2, mixing: moist raw material is mixed, and is stirred mixing using blender, is imported solid after the completion of mixing
Then raw material is mixed again, obtain grouting agent；
Metering packing is carried out after S3, inspection.
Specifically, the model of the grinder, which is set as flood, rises SDF0.4, the blender model is set as TFS1.5, the
Mixing time is 7min, and second of mixing time is 25min, revolving speed 800r/min.
Embodiment 2
The present invention provides a kind of prestress hole path pressure grouting agent, including solid material and moist raw material, the solid materials
Including ordinary fly ash, redispersible latex powder, high-activity mineral matter and active material, the moist raw material includes diminishing
Agent, adjustable solidification agent, thixotropic agent, defoaming agent, water-retaining agent, the component of each raw material weight number are as follows: 500 parts of ordinary fly ash, can divide again
Scattered 80 parts of property latex powder, 240 parts of high-activity mineral matter, 50 parts of active material, 40 parts of water-reducing agent, 8 parts of adjustable solidification agent, 5 parts of thixotropic agent,
6 parts of defoaming agent, 40 parts of water-retaining agent.
Specifically, the water-reducing agent is lignosulfonates based water reducer, naphthalene series high-efficiency water-reducing agent and the high property of polycarboxylic-acid
Energy diminishing agent composition, and volume ratio is 2: 1: 1.
Specifically, the water-retaining agent is sodium base bentonite and low-viscosity hydroxypropylmethylc,llulose, and weight ratio is 3: 2.
Specifically, the defoaming agent is any one in organic oxygen alkane defoaming agent, polyether antifoam agent and organic silicon defoamer
Kind, the adjustable solidification agent is the mixture of sodium gluconate, sucrose and dextrin, and weight ratio is 2: 2: 1.
Specifically, the adjustable solidification agent is the mixture of sodium gluconate, sucrose and dextrin, and weight ratio is 2: 2: 1.
Specifically, the thixotropic agent is the compound of polyvinyl glue and hydroxypropyl methyl cellulose ether, and weight ratio is 2: 3,
The redispersible latex powder is set as ethylene-vinyl acetate copolymer.
Specifically, the active material is calcium oxide and bentonitic mixture, mixes, dried according to 2: 3 ratio
Dry grinding is made, and the ordinary fly ash is C class or F class flyash of the grade not less than II grades.
A kind of preparation method of prestress hole path pressure grouting agent, comprising the following steps:
The preparation of S1, solid material: solid material is mixed according to glass, by solid material benefits more than 300 mesh
It is ground with grinder, until meeting 300 mesh；
S2, mixing: moist raw material is mixed, and is stirred mixing using blender, is imported solid after the completion of mixing
Then raw material is mixed again, obtain grouting agent；
Metering packing is carried out after S3, inspection.
Specifically, the model of the grinder, which is set as flood, rises SDF0.4, the blender model is set as TFS1.5, the
Mixing time is 7min, and second of mixing time is 25min, revolving speed 800r/min.
Embodiment 3
The present invention provides a kind of prestress hole path pressure grouting agent, including solid material and moist raw material, the solid materials
Including ordinary fly ash, redispersible latex powder, high-activity mineral matter and active material, the moist raw material includes diminishing
Agent, adjustable solidification agent, thixotropic agent, defoaming agent, water-retaining agent, the component of each raw material weight number are as follows: 450 parts of ordinary fly ash, can divide again
Scattered 70 parts of property latex powder, 220 parts of high-activity mineral matter, 40 parts of active material, 30 parts of water-reducing agent, 7 parts of adjustable solidification agent, 4 parts of thixotropic agent,
5 parts of defoaming agent, 35 parts of water-retaining agent.
Specifically, the water-reducing agent is lignosulfonates based water reducer, naphthalene series high-efficiency water-reducing agent and the high property of polycarboxylic-acid
Energy diminishing agent composition, and volume ratio is 2: 1: 1.
Specifically, the water-retaining agent is sodium base bentonite and low-viscosity hydroxypropylmethylc,llulose, and weight ratio is 3: 2.
Specifically, the defoaming agent is any one in organic oxygen alkane defoaming agent, polyether antifoam agent and organic silicon defoamer
Kind, the adjustable solidification agent is the mixture of sodium gluconate, sucrose and dextrin, and weight ratio is 2: 2: 1.
Specifically, the adjustable solidification agent is the mixture of sodium gluconate, sucrose and dextrin, and weight ratio is 2: 2: 1.
Specifically, the thixotropic agent is the compound of polyvinyl glue and hydroxypropyl methyl cellulose ether, and weight ratio is 2: 3,
The redispersible latex powder is set as ethylene-vinyl acetate copolymer.
Specifically, the active material is calcium oxide and bentonitic mixture, mixes, dried according to 2: 3 ratio
Dry grinding is made, and the ordinary fly ash is C class or F class flyash of the grade not less than II grades.
A kind of preparation method of prestress hole path pressure grouting agent, comprising the following steps:
The preparation of S1, solid material: solid material is mixed according to glass, by solid material benefits more than 300 mesh
It is ground with grinder, until meeting 300 mesh；
S2, mixing: moist raw material is mixed, and is stirred mixing using blender, is imported solid after the completion of mixing
Then raw material is mixed again, obtain grouting agent；
Metering packing is carried out after S3, inspection.
Specifically, the model of the grinder, which is set as flood, rises SDF0.4, the blender model is set as TFS1.5, the
Mixing time is 7min, and second of mixing time is 25min, revolving speed 800r/min.
Finally, it should be noted that being not intended to restrict the invention the foregoing is merely preferred content of the invention, to the greatest extent
Invention is explained in detail referring to foregoing teachings for pipe, for those skilled in the art, still can be right
Technical solution documented by aforementioned each content is modified or equivalent replacement of some of the technical features, all at this
Within the spirit and principle of invention, any modification, equivalent replacement, improvement and so on should be included in protection model of the invention
Within enclosing.
Claims (9)
1. a kind of prestress hole path pressure grouting agent, it is characterised in that: including solid material and moist raw material, the solid material includes
Ordinary fly ash, redispersible latex powder, high-activity mineral matter and active material, the moist raw material include water-reducing agent, adjust
Solidifying agent, thixotropic agent, defoaming agent, water-retaining agent, the component of each raw material weight number are as follows: 400-500 parts of ordinary fly ash, redispersible
60-80 parts of latex powder of property, 200-240 parts of high-activity mineral matter, 30-50 parts of active material, 20-40 parts of water-reducing agent, adjustable solidification agent 6-8
Part, 3-5 parts of thixotropic agent, 4-6 parts of defoaming agent, 30-40 parts of water-retaining agent.
2. a kind of prestress hole path pressure grouting agent according to claim 1, it is characterised in that: the water-reducing agent is sulfomethylated lignin
Hydrochlorate based water reducer, naphthalene series high-efficiency water-reducing agent and polycarboxylate high performance water-reducing agent mixture, and volume ratio is 2: 1: 1.
3. a kind of prestress hole path pressure grouting agent according to claim 1, it is characterised in that: the water-retaining agent is to receive base swelling
Soil and low-viscosity hydroxypropylmethylc,llulose, and weight ratio is 3: 2.
4. a kind of prestress hole path pressure grouting agent according to claim 1, it is characterised in that: the defoaming agent is organic oxygen alkane
Any one in defoaming agent, polyether antifoam agent and organic silicon defoamer, the adjustable solidification agent are sodium gluconate, sucrose and dextrin
Mixture, and weight ratio be 2: 2: 1.
5. a kind of prestress hole path pressure grouting agent according to claim 1, it is characterised in that: the high-activity mineral matter is choosing
From one or more of slag powders, silicon powder, kaolin, sulphate aluminium cement, flyash.
6. a kind of prestress hole path pressure grouting agent according to claim 1, it is characterised in that: the thixotropic agent be polyvinyl glue and
The compound of hydroxypropyl methyl cellulose ether, and weight ratio is 2: 3, the redispersible latex powder is set as ethyl vinyl acetate
Ethylene copolymer.
7. a kind of prestress hole path pressure grouting agent according to claim 1, it is characterised in that: the active material is calcium oxide
It with bentonitic mixture, is mixed according to 2: 3 ratio, carries out drying grinding and be made, the ordinary fly ash is that grade is not low
In II grades of C classes or F class flyash.
8. a kind of preparation method of prestress hole path pressure grouting agent, it is characterised in that: the following steps are included:
The preparation of S1, solid material: solid material is mixed according to glass, and solid materials more than 300 mesh is utilized and is ground
Grinding machine is ground, until meeting 300 mesh；
S2, mixing: moist raw material is mixed, and is stirred mixing using blender, is imported solid material after the completion of mixing,
Then it is mixed again, obtains grouting agent；
Metering packing is carried out after S3, inspection.
9. a kind of preparation method of prestress hole path pressure grouting agent according to claim 8, it is characterised in that: the grinder
Model be set as flood and rise SDF0.4, the blender model is set as TFS1.5, and first time mixing time is 7min, second
Mixing time is 25min, revolving speed 800r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910246410.7A CN110002802A (en) | 2019-03-20 | 2019-03-20 | A kind of prestress hole path pressure grouting agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910246410.7A CN110002802A (en) | 2019-03-20 | 2019-03-20 | A kind of prestress hole path pressure grouting agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110002802A true CN110002802A (en) | 2019-07-12 |
Family
ID=67168730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910246410.7A Pending CN110002802A (en) | 2019-03-20 | 2019-03-20 | A kind of prestress hole path pressure grouting agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110002802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803079A (en) * | 2021-09-22 | 2021-12-17 | 中铁十四局集团大盾构工程有限公司 | Method for maintaining tunnel face mud film during cabin opening operation of large-diameter slurry shield under pressure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482899A (en) * | 2013-09-16 | 2014-01-01 | 石家庄市长安育才建材有限公司 | Channel grouting agent and manufacturing method thereof |
| CN103922633A (en) * | 2014-03-13 | 2014-07-16 | 南京瑞迪高新技术有限公司 | Prestressed duct grouting agent with self-repairing function |
-
2019
- 2019-03-20 CN CN201910246410.7A patent/CN110002802A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482899A (en) * | 2013-09-16 | 2014-01-01 | 石家庄市长安育才建材有限公司 | Channel grouting agent and manufacturing method thereof |
| CN103922633A (en) * | 2014-03-13 | 2014-07-16 | 南京瑞迪高新技术有限公司 | Prestressed duct grouting agent with self-repairing function |
Non-Patent Citations (3)
| Title |
|---|
| 戴睿等: "生石灰改性膨润土混合材料抗压强度试验研究", 《砖瓦》 * |
| 朱洪法等: "《工业助剂手册》", 30 June 2007, 金盾出版社 * |
| 林宝玉等: "《混凝土工程新材料设计与施工》", 31 August 1998, 中国水利水电出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803079A (en) * | 2021-09-22 | 2021-12-17 | 中铁十四局集团大盾构工程有限公司 | Method for maintaining tunnel face mud film during cabin opening operation of large-diameter slurry shield under pressure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107311561B (en) | A kind of 3D printing cement-based material and preparation method thereof for underwater construction | |
| CN102584101B (en) | Special grouting agent for post-tensioned prestressed concrete beams of highway bridges and culverts and preparation method thereof | |
| CN104844099B (en) | A kind of lower shrinkage low viscosity super high strength concrete | |
| CN101323515B (en) | Ultra-high strong concrete having ultra-high pumping performance and method for preparing the same | |
| CN103435301B (en) | A kind of upper flow regime microdilatancy back-tension prestressed channel mudjacking agent and preparation method | |
| CN105712738B (en) | A kind of high water filling material for discarded pipe filling | |
| CN108203281B (en) | Micro-expansion grouting material and preparation method thereof | |
| CN108409250A (en) | The method for preparing green pervious concrete using tailing | |
| CN105481324A (en) | Inorganic grouting blocking material | |
| CN110218037B (en) | Wet ash-discharging base filling material and preparation method and application thereof | |
| CN103626454A (en) | Manufacturing method of fast-setting early-strength two-fluid injecting paste material | |
| CN102924017A (en) | Super retarding concrete and application thereof | |
| CN106866065A (en) | A kind of antiseepage corrosion resistant concrete clay hardening slurry and preparation method thereof | |
| CN103922660A (en) | Shrinkage-free ultrahigh-strength grouting material for connection of steel bar sleeves | |
| CN108793857A (en) | A kind of shield-tunneling construction synchronous grouting dry-mixed mortar and preparation method thereof | |
| CN110294610A (en) | A kind of soil body composite curing agent | |
| JP2016037406A (en) | High fluidity retention type underwater non-separable grout composition | |
| CN103723940B (en) | Muck soil composite curing agent and application | |
| CN111606614A (en) | Filling material containing lithium mica slag and preparation method and application thereof | |
| CN105565745A (en) | Quick-setting early-strength grouting material | |
| CN107555865B (en) | Seepage-proofing reinforcing paste resistant to water flow erosion | |
| CN106882943A (en) | A kind of strength cement-based grouting material suitable for chlorion hyposmosis | |
| CN110002802A (en) | A kind of prestress hole path pressure grouting agent and preparation method thereof | |
| CN107056190A (en) | High-performance superfine strength cement-based grouting material | |
| CN115504747B (en) | Anti-dispersion high-permeability-resistance grouting material under flowing water condition, preparation method and application |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190712 |