CN109401222A - A kind of insect-repelling mulching film and preparation method thereof - Google Patents
A kind of insect-repelling mulching film and preparation method thereof Download PDFInfo
- Publication number
- CN109401222A CN109401222A CN201811157360.7A CN201811157360A CN109401222A CN 109401222 A CN109401222 A CN 109401222A CN 201811157360 A CN201811157360 A CN 201811157360A CN 109401222 A CN109401222 A CN 109401222A
- Authority
- CN
- China
- Prior art keywords
- parts
- insect
- repelling
- expelling parasite
- mulching film
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/08—Cellulose derivatives
- C08J2401/26—Cellulose ethers
- C08J2401/28—Alkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a kind of insect-repelling mulching films and preparation method thereof, are related to technical field of polymer materials.A kind of insect-repelling mulching film, the ingredient including following parts by weight: 8~10 parts of 40~70 parts of PBAT, 20~25 parts of carboxymethyl cellulose, 10~15 parts of chitosan, 3~8 parts of DBP, 1~2 part of chain extender, 1 ~ 3 part of bentonite, 10~20 parts of clay and expelling parasite source.Preparation method is simple for a kind of insect-repelling mulching film of the present invention, there is the expelling parasite source of expelling parasite effectiveness with the clay absorption of absorption property, bentonite with adhesiveness is wrapped on the clay in the load expelling parasite source of endless white drying, as expelling parasite source power, this powder can be used as stabilizer due to bentonitic cladding, it is kneaded, squeezed out, is granulated, is blow molded with remaining ingredient, obtained expelling parasite film properties are stable, anthelminthic effect is good, degradability is good and good film-forming property, and have antibiotic property.
Description
Technical field
The present invention relates to technical field of polymer materials more particularly to a kind of insect-repelling mulching film and preparation method thereof.
Background technique
Mulch is a kind of indispensable material of modern agriculture, has effects that heat preservation soil moisture conservation, retain water and nutrients, also has anti-
The effect of insect pest promotes plant health growth.China is large agricultural country, and is that mulch consumes most, area coverage in the world
Country maximum, nurse crop type is most wide, mulch also bring white to environment while bringing huge income
Pollution.Currently, most widely used is polyethylene and polychloroethylene film, this film properties are stablized, but not degradable, it is not easy to quilt
Crop absorbs to be utilized again, and a large amount of mulch, which is remained, brings serious negative effect to ecology, destroys soil texture, soil matter
The series of problems such as amount decline, crop production reduction are comed one after another.
Moreover, insect pest is also to influence a big factor of crop production reduction, and traditional pesticide is essentially for crops
Organic synthesis object, toxicity is big, and the pesticide remained on crops can generate the health of human body and greatly threaten, and pesticide is big
Amount is using can make to waste a large amount of people, object and financial resources.
Summary of the invention
In view of the above problems, the present invention provides a kind of insect-repelling mulching film and preparation method thereof, this insect-repelling mulching films
Preparation method is simple, convenient, gained insect-repelling mulching film function admirable, degradable, anthelminthic effect is good, it is environmentally friendly and have certain antibacterial
Effect has broad application prospects.
A kind of insect-repelling mulching film, the ingredient including following parts by weight: 40~70 parts of PBAT, 20~25 parts of carboxymethyl cellulose,
10~15 parts of chitosan, DBP3~8 part, 1~2 part of chain extender, 1~3 part of bentonite, 10~20 parts of clay and expelling parasite source 8~10
Part.
Preferably, the insect-repelling mulching film, the ingredient including following parts by weight: 55~70 parts of PBAT, carboxymethyl cellulose 22
~25 parts, 13~15 parts of chitosan, 5~8 parts of DBP, 1.5~2 parts of chain extender, 2~3 parts of bentonite, 15~20 parts of clay and drive
9~10 parts of worm sources.
Preferably, the insect-repelling mulching film, the ingredient including following parts by weight: 55 parts of PBAT, 22 parts of carboxymethyl cellulose,
9 parts of 13 parts of chitosan, 5 parts of DBP, 1.5 parts of chain extender, 2 parts of bentonite, 15 parts of clay and expelling parasite source.
Preferably, the expelling parasite source includes cinnamomum camphora oil, lavender oil, daphne odera oil, jasmin oil, tagetes oil and folium artemisiae argyi
At least two in oil.
Preferably, the preparation method of a kind of insect-repelling mulching film, comprising the following steps:
S1. the clay of formula ratio is added in the expelling parasite source of formula ratio, stirs 3~5h, drying, adds formula ratio
Bentonite stirs 2~2.5h；
S2. S1 gains are dried in vacuo, are ground up, sieved to obtain powder, it is spare；
S3. the PBAT of powder described in S2 and formula ratio, carboxymethyl cellulose, chitosan, DBP and chain extender are added to and are stirred
It mixes and is stirred 0.5~1h in device, obtain mixture；
S4. mixture described in S3 is kneaded in kneading machine, then is squeezed out, is granulated in double screw extruder,
It is finally blow molded, obtains insect-repelling mulching film.
Preferably, drying temperature described in the S1 is 25~40 DEG C, 10~15min of drying time.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
(1) a kind of preparation method of insect-repelling mulching film of the present invention, the preparation method are simple, easy；
(2) a kind of insect-repelling mulching film of the present invention, using the clay with absorption property to the drive with expelling parasite effectiveness
Worm sources are adsorbed, it is made to load expelling parasite source, and since bentonite has adhesiveness, bentonite is wrapped in the suction of endless white drying
On the attached clay in expelling parasite source, the powder with expelling parasite effectiveness is obtained, since bentonite has stability, so that this powder also has
There is certain stability；This powder is added in PBAT, carboxymethyl cellulose, chitosan, DBP and chain extender again and is carried out
It is kneaded, squeezes out, being granulated, blow molding, obtained expelling parasite film properties are stable, anthelminthic effect is good；
(3) a kind of insect-repelling mulching film of the present invention utilizes the film forming characteristics of biological material carboxymethyl cellulose, easily drop
Characteristic is solved, the readily degradable of the anti-microbial property of chitosan, degradable characteristic and PBAT makes to obtain due to the use of these materials
Insect pest-repellent film degradability is good, good film-forming property, environmental protection and has certain anti-microbial property.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Embodiment 1
A kind of insect-repelling mulching film, the ingredient including following parts by weight: 40 parts of PBAT, 20 parts of carboxymethyl cellulose, chitosan 10
Part, 3 parts of DBP, 1 part of chain extender, 1 part of bentonite, 10 parts of clay and 8 parts of expelling parasite source.
Embodiment 2
A kind of insect-repelling mulching film, the ingredient including following parts by weight: 70 parts of PBAT, 25 parts of carboxymethyl cellulose, chitosan 15
Part, 8 parts of DBP, 2 parts of chain extender, 3 parts of bentonite, 20 parts of clay and 10 parts of expelling parasite source.
Embodiment 3
A kind of insect-repelling mulching film, the ingredient including following parts by weight: 55 parts of PBAT, 22 parts of carboxymethyl cellulose, chitosan 13
Part, 5 parts of DBP, 1.5 parts of chain extender, 2 parts of bentonite, 15 parts of clay and 9 parts of expelling parasite source.
Embodiment 4
A kind of insect-repelling mulching film, the ingredient including following parts by weight: 63 parts of PBAT, 24 parts of carboxymethyl cellulose, chitosan 14
Part, 7 parts of DBP, 1.8 parts of chain extender, 2.5 parts of bentonite, 18 parts of clay and 9.5 parts of expelling parasite source.
Embodiment 5
A kind of preparation method of insect-repelling mulching film, comprising the following steps:
S1. 18 parts by weight of clay are added in 9.5 parts by weight of expelling parasite source, stir 3h, the dry 15min at 25 DEG C, then
2.5 parts by weight of bentonite are added and stir 2.5h；
S2. S1 gains are dried in vacuo, are ground up, sieved to obtain powder, it is spare；
S3. by 63 parts by weight of powder described in S2 and PBAT, 24 parts by weight of carboxymethyl cellulose, 14 parts by weight of chitosan,
DBP7 parts by weight and 1.8 parts by weight of chain extender are added in blender and are stirred 1h, obtain mixture；
S4. mixture described in S3 is kneaded in kneading machine, then is squeezed out, is granulated in double screw extruder,
It is finally blow molded, obtains insect-repelling mulching film.
The expelling parasite source: cinnamomum camphora oil, lavender oil, daphne odera oil, jasmin oil, tagetes oil and the folium artemisiae argyi of homogenous quantities
Oil.
Embodiment 6
A kind of preparation method of insect-repelling mulching film, comprising the following steps:
S1. 10 parts by weight of clay are added in 8 parts by weight of expelling parasite source, stir 4h, the dry 10min at 35 DEG C, then plus
Enter 1 parts by weight of bentonite stirring 2h；
S2. S1 gains are dried in vacuo, are ground up, sieved to obtain powder, it is spare；
S3. by powder described in S2 and PBAT40 parts by weight, 20 parts by weight of carboxymethyl cellulose, 10 parts by weight of chitosan,
DBP3 parts by weight and 1 parts by weight of chain extender are added in blender and are stirred 0.5h, obtain mixture；
S4. mixture described in S3 is kneaded in kneading machine, then is squeezed out, is granulated in double screw extruder,
It is finally blow molded, obtains insect-repelling mulching film.
The expelling parasite source: cinnamomum camphora oil, lavender oil, jasmin oil and tagetes oil, mass ratio 1: 1: 1: 1.
Embodiment 7
A kind of preparation method of insect-repelling mulching film, comprising the following steps:
S1. clay 20 is added in 10 parts by weight of expelling parasite source, stirs 5h, the dry 10min at 40 DEG C,
Add 3 parts by weight of bentonite stirring 2.2h；
S2. S1 gains are dried in vacuo, are ground up, sieved to obtain powder, it is spare；
S3. by powder described in S2 and PBAT70 parts by weight, 25 parts by weight of carboxymethyl cellulose, 15 parts by weight of chitosan,
DBP8 parts by weight and 2 parts by weight of chain extender are added in blender and are stirred 0.8h, obtain mixture；
S4. mixture described in S3 is kneaded in kneading machine, then is squeezed out, is granulated in double screw extruder,
It is finally blow molded, obtains insect-repelling mulching film.
The expelling parasite source: cinnamomum camphora oil, lavender oil, jasmin oil, tagetes oil and Blumea oil, mass ratio 1: 1: 1: 1: 1.
Comparative example 1
A kind of preparation method of insect-repelling mulching film is with embodiment 7, and insect-repelling mulching film includes the ingredient of following parts by weight: PBAT 55
Part, 22 parts of carboxymethyl cellulose, 13 parts of chitosan, 5 parts of DBP, 1.5 parts of chain extender, 2 parts of bentonite, 15 parts of clay and expelling parasite source
2 parts.
The culture of Lettuce vegetable is carried out with embodiment, the insect pest-repellent film of comparative example and commercially available sample 1, using national standard GB/
T16716.7-2012 standard carries out compost degradation, as a result as the following table 1 is shown:
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (6)
1. a kind of insect-repelling mulching film, which is characterized in that the ingredient including following parts by weight: 40~70 parts of PBAT, carboxymethyl cellulose
20~25 parts, 10~15 parts of chitosan, 3~8 parts of DBP, 1~2 part of chain extender, 1 ~ 3 part of bentonite, 10~20 parts of clay and drive
8~10 parts of worm sources.
2. a kind of insect-repelling mulching film as described in claim 1, which is characterized in that the ingredient including following parts by weight: PBAT 55~
70 parts, 22~25 parts of carboxymethyl cellulose, 13~15 parts of chitosan, 5~8 parts of DBP, 1.5~2 parts of chain extender, bentonite 2 ~ 3
9~10 parts of part, 15~20 parts of clay and expelling parasite source.
3. a kind of insect-repelling mulching film as described in claim 1, which is characterized in that the ingredient including following parts by weight: PBAT 55
Part, 22 parts of carboxymethyl cellulose, 13 parts of chitosan, 5 parts of DBP, 1.5 parts of chain extender, 2 parts of bentonite, 15 parts of clay and expelling parasite source
9 parts.
4. a kind of insect-repelling mulching film according to any one of claims 1 to 3, which is characterized in that the expelling parasite source includes cinnamomum camphora
At least two in oil, lavender oil, daphne odera oil, jasmin oil, tagetes oil and Blumea oil.
5. a kind of preparation method of insect-repelling mulching film according to any one of claims 1 to 3, which is characterized in that including following
Step:
S1. the clay of formula ratio is added in the expelling parasite source of formula ratio, stirs 3~5h, drying, adds the swollen of formula ratio
2~2.5h of profit soil stirring；
S2. S1 gains are dried in vacuo, are ground up, sieved to obtain powder, it is spare；
S3. the PBAT of powder described in S2 and formula ratio, carboxymethyl cellulose, chitosan, DBP and chain extender are added to stirring
It is stirred 0.5 ~ 1h in device, obtains mixture；
S4. mixture described in S3 is kneaded in kneading machine, then is squeezed out, is granulated in double screw extruder, finally
It is blow molded, obtains insect-repelling mulching film.
6. a kind of preparation method of insect-repelling mulching film as claimed in claim 5, which is characterized in that drying temperature described in the S1
It is 25 ~ 40 DEG C, 10 ~ 15min of drying time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157360.7A CN109401222A (en) | 2018-09-30 | 2018-09-30 | A kind of insect-repelling mulching film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157360.7A CN109401222A (en) | 2018-09-30 | 2018-09-30 | A kind of insect-repelling mulching film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109401222A true CN109401222A (en) | 2019-03-01 |
Family
ID=65466673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811157360.7A Pending CN109401222A (en) | 2018-09-30 | 2018-09-30 | A kind of insect-repelling mulching film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109401222A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2956345A1 (en) * | 2010-02-17 | 2011-08-19 | Ab7 Ind | Preparing a biodegradable polymer pellet filled with active ingredient, comprises introducing polymer pellet into mixer, heating pellet, adding a co-absorbing agent and a lipophilic composition having ingredients, cooling and collecting |
| CN102936400A (en) * | 2012-11-21 | 2013-02-20 | 武汉华丽生物材料有限公司 | Full-degradation deworming mulching film and preparation method thereof |
| CN106171684A (en) * | 2016-06-30 | 2016-12-07 | 桐城市华猫软膜有限公司 | A kind of insect-repelling mulching film and processing technology thereof |
| CN107501875A (en) * | 2017-07-13 | 2017-12-22 | 山东农业大学 | A kind of agricultural biodegradable special capsaicine master batch of mulch film |
| CN108219396A (en) * | 2017-12-27 | 2018-06-29 | 杨红梅 | A kind of biodegradable polymer blend and its application |
| KR101897750B1 (en) * | 2018-03-15 | 2018-09-12 | (주)테바 | Food Waste Filter manufactured by film including an insect repellent |
-
2018
- 2018-09-30 CN CN201811157360.7A patent/CN109401222A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2956345A1 (en) * | 2010-02-17 | 2011-08-19 | Ab7 Ind | Preparing a biodegradable polymer pellet filled with active ingredient, comprises introducing polymer pellet into mixer, heating pellet, adding a co-absorbing agent and a lipophilic composition having ingredients, cooling and collecting |
| CN102936400A (en) * | 2012-11-21 | 2013-02-20 | 武汉华丽生物材料有限公司 | Full-degradation deworming mulching film and preparation method thereof |
| CN106171684A (en) * | 2016-06-30 | 2016-12-07 | 桐城市华猫软膜有限公司 | A kind of insect-repelling mulching film and processing technology thereof |
| CN107501875A (en) * | 2017-07-13 | 2017-12-22 | 山东农业大学 | A kind of agricultural biodegradable special capsaicine master batch of mulch film |
| CN108219396A (en) * | 2017-12-27 | 2018-06-29 | 杨红梅 | A kind of biodegradable polymer blend and its application |
| KR101897750B1 (en) * | 2018-03-15 | 2018-09-12 | (주)테바 | Food Waste Filter manufactured by film including an insect repellent |
Non-Patent Citations (3)
| Title |
|---|
| 严瑞瑄: "《水溶性高分子》", 30 June 1998, 化学工业出版社 * |
| 李毅，等: "《生物农药（第二版）》", 30 April 2017, 华中师范大学出版社 * |
| 黄玉媛，等: "《精细化工配方常用原料手册》", 31 March 1998, 广东科技出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102180743B (en) | Method for producing insect resistance organic compound fertilizer by fermentation of agricultural organic wastes | |
| CN103964975B (en) | A kind of acid paddy soil amendment and using method thereof | |
| CN106810403A (en) | A kind of multifunctional biological fertilizer and preparation method thereof | |
| CN104255420B (en) | A kind of seedling medium of melon diseases prevention growth promoting and preparation method thereof | |
| CN103242105A (en) | Multi-antibiont organic fertilizer and preparation method thereof | |
| CN1480433A (en) | Fertilizer assorted with high grade organic matter | |
| CN107253892A (en) | A kind of method of pure straw under high temperature fermentation manufacture organic fertilizer | |
| CN105918002A (en) | Cultivation soil for climbing plants and preparation method for cultivation soil | |
| CN101973822A (en) | Pollution-free medicinal fertilizer capable of trapping and killing pests and promoting plant growth and preparation method thereof | |
| CN106883033A (en) | A kind of composite microbiological fertilizer and preparation method thereof | |
| CN105123469A (en) | Paddy rice soiless seedling nursing substrate and manufacturing method for same | |
| KR101132712B1 (en) | Environment-friendly organic agricultural products for soil insect pest control | |
| CN107325822A (en) | A kind of soil conditioner and preparation method thereof | |
| CN106366408A (en) | Degradable insect prevention and removal agricultural thin film | |
| CN107523310A (en) | It is a kind of suitable for soil conditioner of nonacid soil and preparation method thereof | |
| CN107760314B (en) | A kind of dedicated anti-continuous cropping composite soil modifier of industrialized agriculture | |
| CN105367199A (en) | Production process and use method of green fertilizer with effects of insect disinfestation, sterilization and rooting promoting | |
| CN103910545B (en) | Utilize pig manure discarded object to produce the method for Trichoderma harzianum bacterial manure | |
| CN107162775A (en) | A kind of efficient moisture-retention Flower nutrient soil and preparation method thereof | |
| CN1247073C (en) | Straw composite nutritive soil and its making method | |
| CN109054843B (en) | Soil conditioner, preparation method and application of soil conditioner as pesticide synergist | |
| CN1910978A (en) | Plant source, Wet-keeping dressing agent contg. pesticide and fertilizer | |
| CN108794271A (en) | A kind of organic fertilizer and preparation method thereof | |
| CN104961600A (en) | Preparation method of biomass soil for cultivating flowers | |
| CN108184545A (en) | A kind of Resistant White mushroom culture material and preparation method thereof 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: 20190301 |