CN105153555A - Formula, preparation method and use of anti-aging cable composition - Google Patents
Formula, preparation method and use of anti-aging cable composition Download PDFInfo
- Publication number
- CN105153555A CN105153555A CN201510652260.1A CN201510652260A CN105153555A CN 105153555 A CN105153555 A CN 105153555A CN 201510652260 A CN201510652260 A CN 201510652260A CN 105153555 A CN105153555 A CN 105153555A
- Authority
- CN
- China
- Prior art keywords
- aging
- parts
- contact member
- composition formula
- cable
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention relates to a formula of an anti-aging cable composition. The anti-aging cable composition comprises the following ingredients by weight: 50 to 60 parts of ethylene-propylene-diene monomer, 20 to 30 parts of butadiene-acrylonitrile rubber, 20 to 25 parts of silicone rubber, 6 to 8 parts of nano-TiO2, 6 to 10 parts of water glass, 1.5 to 3 parts of zinc oxide, 6 to 8 parts of antimony trioxide, 1.5 to 2 parts of sulphur, 1.2 to 2 parts of a vulcanization accelerator, 1 to 2 parts of an antiager, 0.2 to 0.5 part of an ultraviolet light absorber, 1 to 5 parts of surfactant modified silver nano-particles, 3 to 6 parts of sodium dodecyl sulfate modified carbon nano-tubes, and 2 to 5 parts of surfactant modified nano-aluminum oxide. The anti-aging cable composition has the advantages that various types of rubber are combined, so that the obtained cable is high in mechanical property; due to the combination of nanoscale TiO2 and the ultraviolet light absorber, the aging resistance and the ultraviolet resistance are excellent; due to the combination of the sodium dodecyl sulfate modified carbon nano-tubes and the surfactant modified nano-aluminum oxide, the compactness of the rubber of the anti-aging cable composition is improved, so that the ageing resistance, the corrosion resistance and the ultraviolet resistance are excellent.
Description
Technical field
The present invention relates to a kind of anti-aging Wire/cable contact member composition formula and preparation method thereof, belong to cable preparation field.
Background technology
Rubber is the strong flexible polymer material with reversible deformation.At room temperature high resilience, can produce comparatively large deformation under very little External Force Acting, resilient after removing external force.Rubber belongs to complete amorphous polymer, and its second-order transition temperature is low, and molecular weight is often very large, is greater than hundreds of thousands of.
Rubber cable is exactly Plastic-sheathed Cable, is the electric wire that is insulation and sheath basis with the thermo-setting elastomer of various rubber or equivalent performance.Plastic-sheathed Cable is because himself distinctive flexibility, and usual great majority are all be used on ambulant electric installation.
But existing rubber cable exists cannot have fungi-proofing, ultraviolet, corrosion resistance nature shortcoming simultaneously, this area needs to develop a kind of rubber cable, has fungi-proofing, ultraviolet, erosion resistance advantage simultaneously.
Summary of the invention
An object of the present invention is to provide a kind of anti-aging Wire/cable contact member composition formula, comprises following component by following portions by weight:
Surfactant-modified silver nano-grain of the present invention is utilize tensio-active agent at the copolymer film of silver nano-grain Surface coating vinylbenzene and Vinylstyrene.
Preferably, described tensio-active agent is the combination of any a kind or at least 2 kinds in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate or your ether sulfate.
The preparation process of surfactant-modified silver nano-grain of the present invention is: be dispersed in by silver nano-grain and be dissolved with in the solution of tensio-active agent, then add vinylbenzene, Vinylstyrene and coupling agent, stirs after shearing and completes.
The preparation process of the carbon nanotube of sodium lauryl sulphate modification of the present invention is: by carbon nanotube dispersed in the solution being dissolved with sodium lauryl sulphate, then add coupling agent, and spraying dry obtains the carbon nanotube of sodium lauryl sulphate modification.
The preparation process of surfactant-modified nano aluminium oxide of the present invention is: be dispersed in by silver nano-grain and be dissolved with in the solution of tensio-active agent, then add vinylbenzene, Vinylstyrene and coupling agent, stirs after shearing and completes.
Preferably, described tensio-active agent is the combination of any a kind or at least 2 kinds in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate or your ether sulfate.
UV light absorber of the present invention is selected from the combination of any a kind or at least 2 kinds in salicylate ultraviolet absorption agent, benzophenone class UV light absorber, Benzotriazole Ultraviolet Stabilizer, group-substituted acrylonitrile UV light absorber, triazine-based ultraviolet absorption agent and hindered amines UV light absorber.
Anti-aging agent of the present invention is selected from the combination of any a kind or at least 2 kinds in antioxidant D, anti-aging agent RD, antioxidant MB, antioxidant D NP, antioxidant NBC.
Anti-aging Wire/cable contact member composition formula, is characterized in that, comprises following component by following portions by weight:
Present invention also offers a kind of preparation method of anti-aging cable, it is characterized in that, the raw material of described anti-aging cable has the anti-aging Wire/cable contact member composition formula as described in one of object, and described method comprises the steps:
(1) by the anti-aging Wire/cable contact member composition formula one of object Suo Shu, terpolymer EP rubber, paracril, silicon rubber are added rubber mixing machine, control roller temperature 45 ~ 55 DEG C, pressure refining 2 ~ 10min;
(2) by the anti-aging Wire/cable contact member composition formula one of object Suo Shu, add remaining ingredient, pressure refining 5 ~ 8min, obtains anti-aging cable after extruding.
Present invention also offers the using method of one of a kind of object described anti-aging Wire/cable contact member composition formula, described composite formula composition is used as the sheath of anti-aging cable.
Compared with prior art, the present invention has following beneficial effect:
The present invention is composite multiple rubber, obtains the cable with good mechanical properties, coordinates nano level TiO
2obtain good ageing-resistant and ultra-violet resistance energy with UV light absorber, the silver nano-grain of matching surface promoting agent modification obtains good antimicrobial property; And the carbon nanotube of sodium lauryl sulphate modification and surfactant-modified nano aluminium oxide improve the compactness of rubber, obtain good anti-aging, corrosion-resistant and ultra-violet resistance energy.
Embodiment
Technical scheme of the present invention is further illustrated below by embodiment.
Those skilled in the art should understand, described embodiment is only help to understand the present invention, should not be considered as concrete restriction of the present invention.
Embodiment 1
A kind of anti-aging Wire/cable contact member composition formula, comprises following component by following portions by weight:
Embodiment 2
A kind of anti-aging Wire/cable contact member composition formula, comprises following component by following portions by weight:
Embodiment 3
A kind of anti-aging Wire/cable contact member composition formula, comprises following component by following portions by weight:
Embodiment 4
A kind of anti-aging Wire/cable contact member composition formula, comprises following component by following portions by weight:
Embodiment 1 ~ 4 preparation method
The preparation method of the anti-aging cable that the embodiment of the present invention provides is:
(1) by the anti-aging Wire/cable contact member composition formula described in embodiment 1 ~ 4, terpolymer EP rubber, paracril, silicon rubber are added rubber mixing machine, control roller temperature 45 ~ 55 DEG C, pressure refining 2 ~ 10min;
(2) by the anti-aging Wire/cable contact member composition formula described in embodiment 1 ~ 4, add remaining ingredient, pressure refining 5 ~ 8min, obtains anti-aging cable after extruding.
Comparative example 1
Be surfactant-modified silver nano-grain to replace with silver nano-grain with the difference of embodiment 1.
Comparative example 2
The carbon nanotube not adding sodium lauryl sulphate modification is with the difference of embodiment 1.
Performance test
Anti-aging cable embodiment and comparative example prepared is placed in ageing oven, arranges 75 DEG C of conditions and carries out aging, several lower 75 DEG C of digestion times when Article 1 crackle appears in anti-aging cable surface;
Anti-aging cable embodiment and comparative example prepared is placed in ageing oven, arranges 55 DEG C, and 400nm condition carries out ultraviolet aging resistance, several lower ultraviolet ageing time when Article 1 crackle appears in anti-aging cable surface;
Measure according to ISO22916 plastic-plastic antibacterial surface agent activity and measure germ resistance.
The performance test results is in table 1:
The performance test results of table 1 embodiment and comparative example
| Project | 75 DEG C of digestion times (h) | The ultraviolet ageing time | Germ resistance |
| Embodiment 1 | 3500 | 3200 | Qualified |
| Embodiment 2 | 3600 | 3100 | Qualified |
| Embodiment 3 | 3700 | 3000 | Qualified |
| Embodiment 4 | 4200 | 3800 | Qualified |
| Comparative example 1 | 3500 | 2800 | Defective |
| Comparative example 2 | 1000 | 900 | Qualified |
As can be seen from Table 1, anti-aging cable provided by the invention has good anti-aging, resistance to ozone and anti-microbial property, and the anti-aging cable that especially embodiment 4 provides has unforeseeable technique effect especially.
Applicant states, the present invention illustrates processing method of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned processing step, does not namely mean that the present invention must rely on above-mentioned processing step and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of raw material selected by the present invention, all drops within protection scope of the present invention and open scope.
Claims (10)
1. an anti-aging Wire/cable contact member composition formula, is characterized in that, comprises following component by following portions by weight:
2. anti-aging Wire/cable contact member composition formula as claimed in claim 1, is characterized in that, described surfactant-modified silver nano-grain is utilize tensio-active agent at the copolymer film of silver nano-grain Surface coating vinylbenzene and Vinylstyrene;
Preferably, described tensio-active agent is the combination of any a kind or at least 2 kinds in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate or your ether sulfate.
3. anti-aging Wire/cable contact member composition formula as claimed in claim 2, it is characterized in that, the preparation process of described surfactant-modified silver nano-grain is: be dispersed in by silver nano-grain and be dissolved with in the solution of tensio-active agent, then add vinylbenzene, Vinylstyrene and coupling agent, stir after shearing and complete.
4. anti-aging Wire/cable contact member composition formula as claimed in claim 1, it is characterized in that, the preparation process of the carbon nanotube of described sodium lauryl sulphate modification is: by carbon nanotube dispersed in the solution being dissolved with sodium lauryl sulphate, then add coupling agent, spraying dry obtains the carbon nanotube of sodium lauryl sulphate modification.
5. anti-aging Wire/cable contact member composition formula as claimed in claim 1, it is characterized in that, the preparation process of described surfactant-modified nano aluminium oxide is: be dispersed in by silver nano-grain and be dissolved with in the solution of tensio-active agent, then add vinylbenzene, Vinylstyrene and coupling agent, stir after shearing and complete;
Preferably, described tensio-active agent is the combination of any a kind or at least 2 kinds in Sodium dodecylbenzene sulfonate, sodium lauryl sulphate or your ether sulfate.
6. anti-aging Wire/cable contact member composition formula as claimed in claim 1, it is characterized in that, described UV light absorber is selected from the combination of any a kind or at least 2 kinds in salicylate ultraviolet absorption agent, benzophenone class UV light absorber, Benzotriazole Ultraviolet Stabilizer, group-substituted acrylonitrile UV light absorber, triazine-based ultraviolet absorption agent and hindered amines UV light absorber.
7. anti-aging Wire/cable contact member composition formula as claimed in claim 1, is characterized in that, described anti-aging agent is selected from the combination of any a kind or at least 2 kinds in antioxidant D, anti-aging agent RD, antioxidant MB, antioxidant D NP, antioxidant NBC.
8. anti-aging Wire/cable contact member composition formula as claimed in claim 1, is characterized in that, comprise following component by following portions by weight:
9. a preparation method for anti-aging cable, is characterized in that, the raw material of described anti-aging cable has the anti-aging Wire/cable contact member composition formula as described in one of claim 1 ~ 8, and described method comprises the steps:
(1) by the anti-aging Wire/cable contact member composition formula one of claim 1 ~ 8 Suo Shu, terpolymer EP rubber, paracril, silicon rubber are added rubber mixing machine, control roller temperature 45 ~ 55 DEG C, pressure refining 2 ~ 10min;
(2) by the anti-aging Wire/cable contact member composition formula one of claim 1 ~ 8 Suo Shu, add remaining ingredient, pressure refining 5 ~ 8min, obtains anti-aging cable after extruding.
10. a using method for the anti-aging Wire/cable contact member composition formula as described in one of claim 1 ~ 8, is characterized in that, described composite formula composition is used as the sheath of anti-aging cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510652260.1A CN105153555B (en) | 2015-10-10 | 2015-10-10 | A kind of anti-aging Wire/cable contact member composition formula, Preparation method and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510652260.1A CN105153555B (en) | 2015-10-10 | 2015-10-10 | A kind of anti-aging Wire/cable contact member composition formula, Preparation method and use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105153555A true CN105153555A (en) | 2015-12-16 |
| CN105153555B CN105153555B (en) | 2017-10-03 |
Family
ID=54794625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510652260.1A Active CN105153555B (en) | 2015-10-10 | 2015-10-10 | A kind of anti-aging Wire/cable contact member composition formula, Preparation method and use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105153555B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504829A (en) * | 2015-12-25 | 2016-04-20 | 国网电力科学研究院武汉南瑞有限责任公司 | High-temperature silicone rubber material resistant to strong ultraviolet radiation |
| CN105585781A (en) * | 2016-02-18 | 2016-05-18 | 繁昌县菲德通讯材料设计有限公司 | Impact-resistant heat-insulating rubber cable material |
| CN106633445A (en) * | 2016-12-19 | 2017-05-10 | 钦州市科学技术开发中心 | Anti-aging cable skin and preparation method thereof |
| CN108794904A (en) * | 2018-07-04 | 2018-11-13 | 合肥信亚达智能科技有限公司 | A kind of anti-aging wire covering and preparation method thereof for power equipment |
| CN110054843A (en) * | 2019-05-13 | 2019-07-26 | 徐州工程学院 | Nano-TiO2Modified epdm and preparation method thereof |
| CN110452538A (en) * | 2019-07-15 | 2019-11-15 | 安徽伊法拉电力科技有限公司 | A kind of uvioresistant cable termination attachment special silicone rubber and preparation method thereof |
| CN110483857A (en) * | 2019-08-30 | 2019-11-22 | 安徽电缆股份有限公司 | Wear-resisting ageing-resistant power cable sheath material of one kind and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103709524A (en) * | 2013-12-16 | 2014-04-09 | 芜湖万润机械有限责任公司 | Antibacterial rubber apron |
| CN103881246A (en) * | 2014-04-14 | 2014-06-25 | 上海三原电缆附件有限公司 | Insulating material for high-voltage direct-current cable accessories and preparation method of insulating material |
| CN104262796A (en) * | 2014-09-16 | 2015-01-07 | 青岛市高科专利技术转移平台有限公司 | High-strength modified electric wire rubber sheath |
-
2015
- 2015-10-10 CN CN201510652260.1A patent/CN105153555B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103709524A (en) * | 2013-12-16 | 2014-04-09 | 芜湖万润机械有限责任公司 | Antibacterial rubber apron |
| CN103881246A (en) * | 2014-04-14 | 2014-06-25 | 上海三原电缆附件有限公司 | Insulating material for high-voltage direct-current cable accessories and preparation method of insulating material |
| CN104262796A (en) * | 2014-09-16 | 2015-01-07 | 青岛市高科专利技术转移平台有限公司 | High-strength modified electric wire rubber sheath |
Non-Patent Citations (4)
| Title |
|---|
| 刘吉平等: "《聚合物基纳米改性材料》", 31 August 2009, 科学出版社 * |
| 刘国诠: "《色谱柱技术》", 31 July 2001, 化学工业出版社 * |
| 周文英等: "《导热高分子材料》", 30 April 2014, 国防工业出版社 * |
| 大连化工研究设计院: "《纯碱工业》", 30 April 2004, 化学工业出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504829A (en) * | 2015-12-25 | 2016-04-20 | 国网电力科学研究院武汉南瑞有限责任公司 | High-temperature silicone rubber material resistant to strong ultraviolet radiation |
| CN105585781A (en) * | 2016-02-18 | 2016-05-18 | 繁昌县菲德通讯材料设计有限公司 | Impact-resistant heat-insulating rubber cable material |
| CN106633445A (en) * | 2016-12-19 | 2017-05-10 | 钦州市科学技术开发中心 | Anti-aging cable skin and preparation method thereof |
| CN108794904A (en) * | 2018-07-04 | 2018-11-13 | 合肥信亚达智能科技有限公司 | A kind of anti-aging wire covering and preparation method thereof for power equipment |
| CN110054843A (en) * | 2019-05-13 | 2019-07-26 | 徐州工程学院 | Nano-TiO2Modified epdm and preparation method thereof |
| CN110452538A (en) * | 2019-07-15 | 2019-11-15 | 安徽伊法拉电力科技有限公司 | A kind of uvioresistant cable termination attachment special silicone rubber and preparation method thereof |
| CN110483857A (en) * | 2019-08-30 | 2019-11-22 | 安徽电缆股份有限公司 | Wear-resisting ageing-resistant power cable sheath material of one kind and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105153555B (en) | 2017-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105153555A (en) | Formula, preparation method and use of anti-aging cable composition | |
| CN105585793B (en) | A kind of PVC mixture with clean surfaces function and preparation method thereof | |
| CN103922687B (en) | A kind of graphene oxide strengthens composite gypsum material and preparation method thereof | |
| CN103435964B (en) | Wear-resisting enhancing POM and preparation method thereof | |
| CN102417668A (en) | Cable sheath material for wind power generation and production method thereof | |
| EP3006523A1 (en) | Ordinary temperature-curable photocatalytic coating material, ordinary temperature-curable coating composition, and interior material | |
| CN102982929A (en) | Anti-pollution flashover insulator manufacturing method | |
| CN103755901A (en) | Preparation method of octasulfydryl polyhedral oligomeric silsesquioxane modified elastomer material | |
| CN103938458B (en) | A kind of method of aramid fiber surface modification and the application of enhancing natural rubber thereof | |
| CN105176221A (en) | Environmentally-friendly multi-effect nanometer water-based paint | |
| CN105367958A (en) | Antibacterial modified fluororubber composite material | |
| CN105440817A (en) | Preparation method of unlimited-color multifunctional antistatic aqueous coating | |
| CN104693510A (en) | Preparation material of scratch-resistant screen wiper rubber sheet and preparation method thereof | |
| CN109467866B (en) | Environment-friendly PVC (polyvinyl chloride) eraser with highlight antibacterial function and preparation process thereof | |
| Khattak et al. | Life estimation and analysis of dielectric strength, hydrocarbon backbone and oxidation of high voltage multi stressed EPDM composites | |
| CN102532903A (en) | Antibacterial environmentally friendly rubber | |
| CN104045863A (en) | Ozone-resistant rubber | |
| CN104194109B (en) | A kind of heat oxygen aging resistance epoxidized natural rubber composite material and its preparation method | |
| CN105885390A (en) | Anti-skid anti-static TPU film and preparation method thereof | |
| CN104277342A (en) | High-toughness synthetic rubber for color selector and preparation method of high-toughness synthetic rubber | |
| CN105097152B (en) | Porcelain insulator that surface is modified and preparation method thereof | |
| CN104629106A (en) | High-performance automotive rubber | |
| CN104962669B (en) | Inorganic nano leather repairing agent and preparation method thereof | |
| CN108440922A (en) | A kind of PET composite material and preparation method thereof | |
| CN106496870A (en) | A kind of fluorination self-clean type plastic plate and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |