CN111851375A - Road surface cleaning method for road and bridge construction - Google Patents
Road surface cleaning method for road and bridge construction Download PDFInfo
- Publication number
- CN111851375A CN111851375A CN202010752211.6A CN202010752211A CN111851375A CN 111851375 A CN111851375 A CN 111851375A CN 202010752211 A CN202010752211 A CN 202010752211A CN 111851375 A CN111851375 A CN 111851375A
- Authority
- CN
- China
- Prior art keywords
- pavement
- cleaning
- base
- road
- equipment
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/001—Treatment of dispersed oil or similar pollution on roads, for instance devices for applying treating agents
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/16—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for applying or spreading liquid materials, e.g. bitumen slurries
- E01C19/17—Application by spraying or throwing
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/12—Hand implements, e.g. litter pickers
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Road Repair (AREA)
Abstract
The invention discloses a road surface cleaning method for road and bridge construction, which comprises the following steps: s1, using the construction enclosure to enclose and block the construction pavement and reserving an inlet and an outlet of construction equipment; s2, moving mechanical equipment on the base pavement and construction materials placed on the base pavement; s3, manually cleaning leaves and garbage on the base pavement; s4, uniformly spraying a glue removing agent on the surface of the base pavement through spraying equipment, standing for 5-10 hours, and waiting for the glue removing agent to fully react with attachments adhered to the base pavement; s5, carrying out washing and cleaning operations on the base pavement sprayed with the adhesive removing agent through cleaning equipment; s6, washing the base pavement by using high-pressure cleaning equipment, and removing the residual adhesive removing agent on the base pavement; s7, standing for 1-2 days, and after the base layer pavement is dried, uniformly spraying the adhesive on the surface of the base layer pavement through spraying equipment to prepare for asphalt paving operation.
Description
Technical Field
The invention relates to the field of road and bridge construction, in particular to a road surface cleaning method for road and bridge construction.
Background
In the process of asphalt pavement construction, a layer of concrete is paved on a construction pavement as a base layer of the construction pavement, and then asphalt is paved on the base layer pavement to complete all paving operations of the construction pavement; but because the concrete is laid and needs to dry completely, and some construction roads are comparatively serious because the crowded situation of vehicle, can lead to the car in advance after laying and accomplishing basic unit's road surface, wait for all basic unit's road surfaces to dry totally and then lay pitch in unison, because the walking of vehicle can lead to having rubbish on the basic unit's road surface, debris such as tire granule, therefore, need clear up the operation to basic unit's road surface before laying pitch, in order to guarantee the firm effect of structure with basic unit's road surface after the pitch is laid, and current basic unit's road surface clearance only adopts artifical cleaning process, some tire granules can adhere and are difficult for being cleaned on basic unit's road surface, it can cause certain influence to the laying effect of pitch, reduce the structure steadiness of pitch and basic unit's road surface.
Disclosure of Invention
The invention aims to provide a road surface cleaning method for road and bridge construction, which aims to improve the paving effect of an asphalt pavement.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a road surface cleaning method for road and bridge construction comprises the following steps:
s1, using the construction enclosure to enclose and block the construction pavement and reserving an inlet and an outlet of construction equipment;
s2, moving mechanical equipment on the base pavement and construction materials placed on the base pavement;
s3, manually cleaning leaves and garbage on the base pavement;
s4, uniformly spraying a glue removing agent on the surface of the base pavement through spraying equipment, standing for 5-10 hours, and waiting for the glue removing agent to fully react with attachments adhered to the base pavement;
s5, carrying out washing and cleaning operations on the base pavement sprayed with the adhesive removing agent through cleaning equipment;
s6, washing the base pavement by using high-pressure cleaning equipment, and removing the residual adhesive removing agent on the base pavement;
s7, standing for 1-2 days, and after the base layer pavement is dried, uniformly spraying the adhesive on the surface of the base layer pavement through spraying equipment to prepare for asphalt paving operation.
Further, the spraying device in the steps S4 and S7 is a water sprinkler.
Further, the degumming agent is prepared by mixing ethylene glycol, methyl isoamyl ketone, triethyl phosphate and 4-aminobutyraldehyde diethyl acetal, wherein the volume ratio of the ethylene glycol, the methyl isoamyl ketone, the triethyl phosphate to the 4-aminobutyraldehyde diethyl acetal is (2-3: 1): 1: 1-2.
Further, the cleaning device in step S5 is a road sweeper.
Further, in the step S6, the high-pressure cleaning device is a high-pressure water gun.
Further, the adhesive in step S7 is prepared by mixing percarbamide, α -amino- β -phenylpropionic acid, 2-methoxy-9-chloro-5-decene, and phenolic resin; the volume ratio of the percarbamide to the alpha-amino-beta-phenylpropionic acid to the 2-methoxy-9-chloro-5-decene to the phenolic resin is 1: 3-5: 2-3: 5-6.
Compared with the prior art, the invention has the advantages and positive effects that:
according to the invention, firstly, the garbage on the base pavement is removed through manual cleaning, and then the design that the adhesive remover is uniformly sprayed on the surface of the base pavement by adopting spraying equipment is adopted, so that the adhesive remover can be contacted with substances such as rubber particles adhered to the base pavement and fully react, the substances such as the rubber particles are completely removed under the action of the cleaning equipment, the condition that the asphalt laying effect is influenced due to the fact that the residual rubber particles cannot be removed is avoided, and the using effect of the asphalt pavement cleaning agent is improved;
on the other hand, before asphalt is paved, the design of spraying the adhesive on the base pavement enables the adhesive to increase the adhesion between the asphalt and the base pavement, thereby increasing the structural stability between the paved asphalt and the base pavement, effectively improving the paving effect of the asphalt and further improving the using effect of the asphalt paving machine.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived from the embodiments of the present invention by a person skilled in the art without any creative effort, should be included in the protection scope of the present invention.
Embodiment 1, the method for cleaning a road surface for road and bridge construction in this embodiment includes the steps of:
s1, using the construction enclosure to enclose and block the construction pavement and reserving an inlet and an outlet of construction equipment;
s2, moving mechanical equipment on the base pavement and construction materials placed on the base pavement;
s3, manually cleaning leaves and garbage on the base pavement;
s4, uniformly spraying a degumming agent on the surface of the base pavement by a sprinkler, wherein the degumming agent is prepared by mixing ethylene glycol, methyl isoamyl ketone, triethyl phosphate and 4-aminobutyraldehyde diethyl acetal, and the volume ratio of the ethylene glycol to the methyl isoamyl ketone to the triethyl phosphate to the 4-aminobutyraldehyde diethyl acetal is (2: 1): 1: 1; then standing for 5 hours, and waiting for the adhesive remover to fully react with the attachments adhered on the base pavement;
s5, carrying out washing and cleaning operations on the base pavement sprayed with the adhesive removing agent through a pavement sweeper;
s6, washing the base pavement by using a high-pressure water spray gun, and removing the residual adhesive removing agent on the base pavement to prevent the adhesive removing agent from influencing the adhesion between the base pavement and the asphalt to be paved;
s7, standing for 1 day, after the base pavement is dried, uniformly spraying an adhesive on the surface of the base pavement through a sprinkler to prepare for asphalt paving operation; the adhesive is prepared by mixing percarbamide, alpha-amino-beta-phenylpropionic acid, 2-methoxy-9-chloro-5-decene and phenolic resin; the volume ratio of the percarbamide to the alpha-amino-beta-phenylpropionic acid to the 2-methoxy-9-chloro-5-decene to the phenolic resin is 1:3:2: 5.
Embodiment 2, the method for cleaning a road surface for road and bridge construction in this embodiment includes the steps of:
s1, using the construction enclosure to enclose and block the construction pavement and reserving an inlet and an outlet of construction equipment;
s2, moving mechanical equipment on the base pavement and construction materials placed on the base pavement;
s3, manually cleaning leaves and garbage on the base pavement;
s4, uniformly spraying a degumming agent on the surface of the base pavement by a sprinkler, wherein the degumming agent is prepared by mixing ethylene glycol, methyl isoamyl ketone, triethyl phosphate and 4-aminobutyraldehyde diethyl acetal, and the volume ratio of the ethylene glycol, the methyl isoamyl ketone, the triethyl phosphate and the 4-aminobutyraldehyde diethyl acetal is 3: 1: 1: 1; then standing for 8 hours, and waiting for the adhesive remover to fully react with the attachments adhered to the base pavement;
s5, carrying out washing and cleaning operations on the base pavement sprayed with the adhesive removing agent through a pavement sweeper;
s6, washing the base pavement by using a high-pressure water spray gun, and removing the residual adhesive removing agent on the base pavement to prevent the adhesive removing agent from influencing the adhesion between the base pavement and the asphalt to be paved;
s7, standing for 1 day, after the base pavement is dried, uniformly spraying an adhesive on the surface of the base pavement through a sprinkler to prepare for asphalt paving operation; the adhesive is prepared by mixing percarbamide, alpha-amino-beta-phenylpropionic acid, 2-methoxy-9-chloro-5-decene and phenolic resin; the volume ratio of the percarbamide to the alpha-amino-beta-phenylpropionic acid to the 2-methoxy-9-chloro-5-decene to the phenolic resin is 1:4:2: 5.
Embodiment 3, the method for cleaning a road surface for road and bridge construction in this embodiment includes the steps of:
s1, using the construction enclosure to enclose and block the construction pavement and reserving an inlet and an outlet of construction equipment;
s2, moving mechanical equipment on the base pavement and construction materials placed on the base pavement;
s3, manually cleaning leaves and garbage on the base pavement;
s4, uniformly spraying a degumming agent on the surface of the base pavement by a sprinkler, wherein the degumming agent is prepared by mixing ethylene glycol, methyl isoamyl ketone, triethyl phosphate and 4-aminobutyraldehyde diethyl acetal, and the volume ratio of the ethylene glycol, the methyl isoamyl ketone, the triethyl phosphate and the 4-aminobutyraldehyde diethyl acetal is 3: 1: 1: 2; then standing for 10 hours, and waiting for the adhesive remover to fully react with the attachments adhered to the base pavement;
s5, carrying out washing and cleaning operations on the base pavement sprayed with the adhesive removing agent through a pavement sweeper;
s6, washing the base pavement by using a high-pressure water spray gun, and removing the residual adhesive removing agent on the base pavement to prevent the adhesive removing agent from influencing the adhesion between the base pavement and the asphalt to be paved;
s7, standing for 2 days, after the base pavement is dried, uniformly spraying an adhesive on the surface of the base pavement through a sprinkler to prepare for asphalt paving operation; the adhesive is prepared by mixing percarbamide, alpha-amino-beta-phenylpropionic acid, 2-methoxy-9-chloro-5-decene and phenolic resin; the volume ratio of the percarbamide to the alpha-amino-beta-phenylpropionic acid to the 2-methoxy-9-chloro-5-decene to the phenolic resin is 1:5:3: 6.
According to the invention, firstly, the garbage on the base pavement is removed through manual cleaning, and then the design that the adhesive remover is uniformly sprayed on the surface of the base pavement by adopting spraying equipment is adopted, so that the adhesive remover can be contacted with substances such as rubber particles adhered to the base pavement and fully react, the substances such as the rubber particles are completely removed under the action of the cleaning equipment, the condition that the asphalt laying effect is influenced due to the fact that the residual rubber particles cannot be removed is avoided, and the using effect of the asphalt pavement cleaning agent is improved;
on the other hand, before asphalt is paved, the design of spraying the adhesive on the base pavement enables the adhesive to increase the adhesion between the asphalt and the base pavement, thereby increasing the structural stability between the paved asphalt and the base pavement, effectively improving the paving effect of the asphalt and further improving the using effect of the asphalt paving machine.
Claims (6)
1. A road surface cleaning method for road and bridge construction is characterized by comprising the following steps: the method comprises the following steps:
s1, using the construction enclosure to enclose and block the construction pavement and reserving an inlet and an outlet of construction equipment;
s2, moving mechanical equipment on the base pavement and construction materials placed on the base pavement;
s3, manually cleaning leaves and garbage on the base pavement;
s4, uniformly spraying a glue removing agent on the surface of the base pavement through spraying equipment, standing for 5-10 hours, and waiting for the glue removing agent to fully react with attachments adhered to the base pavement;
s5, carrying out washing and cleaning operations on the base pavement sprayed with the adhesive removing agent through cleaning equipment;
s6, washing the base pavement by using high-pressure cleaning equipment, and removing the residual adhesive removing agent on the base pavement;
s7, standing for 1-2 days, and after the base layer pavement is dried, uniformly spraying the adhesive on the surface of the base layer pavement through spraying equipment to prepare for asphalt paving operation.
2. The method for cleaning a road surface for road and bridge construction according to claim 1, characterized in that: the spraying equipment in the steps S4 and S7 is a sprinkler.
3. The method for cleaning a road surface for road and bridge construction according to claim 2, characterized in that: the degumming agent is prepared by mixing ethylene glycol, methyl isoamyl ketone, triethyl phosphate and 4-aminobutyraldehyde diethyl acetal, wherein the volume ratio of the ethylene glycol to the methyl isoamyl ketone to the triethyl phosphate to the 4-aminobutyraldehyde diethyl acetal is (2-3: 1): 1: 1-2.
4. A method for cleaning a road surface for road and bridge construction according to claim 3, characterized in that: the cleaning device in step S5 is a road sweeper.
5. The method for cleaning a road surface for road and bridge construction according to claim 4, wherein: the high-pressure cleaning device in the step S6 is a high-pressure water gun.
6. The method for cleaning a road surface for road and bridge construction according to claim 5, characterized in that: the adhesive in the step S7 is prepared by mixing percarbamide, alpha-amino-beta-phenylpropionic acid, 2-methoxy-9-chloro-5-decene and phenolic resin; the volume ratio of the percarbamide to the alpha-amino-beta-phenylpropionic acid to the 2-methoxy-9-chloro-5-decene to the phenolic resin is 1: 3-5: 2-3: 5-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010752211.6A CN111851375A (en) | 2020-07-30 | 2020-07-30 | Road surface cleaning method for road and bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010752211.6A CN111851375A (en) | 2020-07-30 | 2020-07-30 | Road surface cleaning method for road and bridge construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111851375A true CN111851375A (en) | 2020-10-30 |
Family
ID=72946514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010752211.6A Pending CN111851375A (en) | 2020-07-30 | 2020-07-30 | Road surface cleaning method for road and bridge construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111851375A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU491751A1 (en) * | 1973-06-14 | 1975-11-15 | ||
| CN101899365A (en) * | 2009-05-27 | 2010-12-01 | 宁波百仕高联合工业有限公司 | Adhesive remover and preparation method thereof |
| CN202247584U (en) * | 2011-08-26 | 2012-05-30 | 江苏省交通科学研究院股份有限公司 | Novel asphalt pavement |
| CN203559320U (en) * | 2013-09-13 | 2014-04-23 | 王朝锋 | Semi-rigid base asphalt pavement |
| CN107129647A (en) * | 2017-06-23 | 2017-09-05 | 广西南宁桂尔创环保科技有限公司 | A kind of fire-retardant degradable environmental protection macromolecule foamed material and preparation method thereof |
| CN107254261A (en) * | 2017-06-28 | 2017-10-17 | 徐州鑫典家具厂 | A kind of wood furniture sticks agent with viscous |
| CN107652696A (en) * | 2017-09-14 | 2018-02-02 | 温州隆盛市政建设有限公司 | A kind of bridge asphalt material and its preparation technology and bridge structure |
| CN108410597A (en) * | 2018-02-02 | 2018-08-17 | 上海珑灵洁净科技有限公司 | Aqueous adhesive remover composition and preparation method thereof |
| CN109370513A (en) * | 2018-09-29 | 2019-02-22 | 南京兴佑交通科技有限公司 | A kind of adhesion coating emulsified asphalt and preparation method thereof |
| CN110939034A (en) * | 2019-11-21 | 2020-03-31 | 广东中晋建设工程有限公司 | Asphalt concrete pavement construction method |
-
2020
- 2020-07-30 CN CN202010752211.6A patent/CN111851375A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU491751A1 (en) * | 1973-06-14 | 1975-11-15 | ||
| CN101899365A (en) * | 2009-05-27 | 2010-12-01 | 宁波百仕高联合工业有限公司 | Adhesive remover and preparation method thereof |
| CN202247584U (en) * | 2011-08-26 | 2012-05-30 | 江苏省交通科学研究院股份有限公司 | Novel asphalt pavement |
| CN203559320U (en) * | 2013-09-13 | 2014-04-23 | 王朝锋 | Semi-rigid base asphalt pavement |
| CN107129647A (en) * | 2017-06-23 | 2017-09-05 | 广西南宁桂尔创环保科技有限公司 | A kind of fire-retardant degradable environmental protection macromolecule foamed material and preparation method thereof |
| CN107254261A (en) * | 2017-06-28 | 2017-10-17 | 徐州鑫典家具厂 | A kind of wood furniture sticks agent with viscous |
| CN107652696A (en) * | 2017-09-14 | 2018-02-02 | 温州隆盛市政建设有限公司 | A kind of bridge asphalt material and its preparation technology and bridge structure |
| CN108410597A (en) * | 2018-02-02 | 2018-08-17 | 上海珑灵洁净科技有限公司 | Aqueous adhesive remover composition and preparation method thereof |
| CN109370513A (en) * | 2018-09-29 | 2019-02-22 | 南京兴佑交通科技有限公司 | A kind of adhesion coating emulsified asphalt and preparation method thereof |
| CN110939034A (en) * | 2019-11-21 | 2020-03-31 | 广东中晋建设工程有限公司 | Asphalt concrete pavement construction method |
Non-Patent Citations (3)
| Title |
|---|
| 化工部标准化研究所: "《国外化工产品质量规格汇编》", 31 December 1986, 化工部标准化研究所 * |
| 温辉梁等: "《化工助剂》", 31 December 2009, 江西科学技术出版社 * |
| 秦浩正等: "《中学生化学词典 化学卷》", 30 September 2012, 世界图书上海出版公司 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107151511B (en) | A kind of concrete guardrail anti-collision wall breakage renovation agent and renovation technique | |
| CN105421265A (en) | Cooling and dedusting device capable of preventing tracks | |
| KR100639933B1 (en) | Elastic flooring and method for producing and constructing the same | |
| CN109096991B (en) | Anti-sliding fog seal material and construction method thereof | |
| CN105421277A (en) | Construction method of urban road surface cooling and dust removing system | |
| CN104032639A (en) | Ice condensation resistant ultra-thin wearing course pavement and preparation method thereof | |
| CN111851375A (en) | Road surface cleaning method for road and bridge construction | |
| CN107513350B (en) | Transparent outdoor super-hydrophobic self-cleaning coating | |
| CN109233600B (en) | Long-acting hydrophobic ice inhibition coating and preparation method thereof | |
| CN111777945B (en) | High-performance sand-containing fog sealing layer material and preparation method thereof | |
| KR102000219B1 (en) | Maintenance method of road gutter using polymer mortar | |
| JPH02285103A (en) | Method and material for jointing | |
| EP0985458B1 (en) | Method of maintenance of structure like building and paved road | |
| CN204125817U (en) | A kind of road local route repair bituminous distributor | |
| CN109403192A (en) | Asphalt pavement pit repairing method | |
| CN201730077U (en) | Dust suction device of road sweeping truck | |
| CN101451335B (en) | High attachment road surface construction method | |
| CN205188762U (en) | Pavement patching AS sprinkler that can adapt to speed of a motor vehicle and bituminous paving automatically | |
| CN106381816A (en) | Repairing and processing method for corrosion expansion type breakage of bridge member reinforcing bars | |
| CN111519491A (en) | Construction method of sand-containing fog seal in highway maintenance | |
| CN105064166A (en) | Mounting method of plastic track | |
| CN104141269A (en) | Pavement construction method of photocatalysis coating | |
| CN115433491B (en) | Anti-skid material capable of easily breaking ice on pavement and application | |
| JPH083907A (en) | Constructing method for anti-skid pavement of surface of covering plate | |
| CN106223153B (en) | Modified by tar epoxy pavement structure and construction technology under a kind of low temperature environment |
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 |
Application publication date: 20201030 |
|
| RJ01 | Rejection of invention patent application after publication |