CN108641128A - A kind of Fanglun slurry cake base rubber composite material and preparation method thereof - Google Patents

A kind of Fanglun slurry cake base rubber composite material and preparation method thereof Download PDF

Info

Publication number
CN108641128A
CN108641128A CN201810412311.7A CN201810412311A CN108641128A CN 108641128 A CN108641128 A CN 108641128A CN 201810412311 A CN201810412311 A CN 201810412311A CN 108641128 A CN108641128 A CN 108641128A
Authority
CN
China
Prior art keywords
parts
slurry cake
fanglun slurry
polyvinyl alcohol
rubber
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
Application number
CN201810412311.7A
Other languages
Chinese (zh)
Inventor
朱凉伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu General Science Technology Co Ltd
Original Assignee
Jiangsu General Science Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu General Science Technology Co Ltd filed Critical Jiangsu General Science Technology Co Ltd
Priority to CN201810412311.7A priority Critical patent/CN108641128A/en
Publication of CN108641128A publication Critical patent/CN108641128A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00Compositions of natural rubber
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/002Methods
    • B29B7/005Methods for mixing in batches
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2296Oxides; Hydroxides of metals of zinc
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/14Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16Fibres; Fibrils

Abstract

The present invention relates to a kind of Fanglun slurry cake base rubber composite materials and preparation method thereof, and component is calculated by weight as:100 parts of rubber, 0.1 20 parts of Fanglun slurry cake polyvinyl alcohol compound, 0.5 5 parts of polyvinyl butyral, 30 60 parts of carbon black, 5 10 parts of zinc oxide, 0.5 4 parts of stearic acid, 15 parts of anti-aging agent, 26 parts of sulphur, 0.5 2 parts of accelerating agent, 0.1 0.4 parts of antiscorching agent, the mass ratio of Fanglun slurry cake and polyvinyl alcohol is 1 in Fanglun slurry cake polyvinyl alcohol compound:5~1:50.Each raw material obtains Fanglun slurry cake base rubber composite material after one section of masterbatching and eventually refining.Preparation method of the present invention is simple, step is easily operated, Fanglun slurry cake is scattered in polyvinyl alcohol, it is agglomerating to avoid Fanglun slurry cake aggregation, ensure that Fanglun slurry cake is evenly dispersed in sizing material, polyvinyl butyral is added in rubber compounding, on the one hand it can interact with Fanglun slurry cake polyvinyl alcohol compound, on the other hand it can interact again with rubber, promote Fanglun slurry cake evenly dispersed in sizing material, improve the comprehensive performance of sizing material.

Description

A kind of Fanglun slurry cake base rubber composite material and preparation method thereof
Technical field
The present invention relates to a kind of Fanglun slurry cake base rubber composite materials and preparation method thereof, belong to rubber composite material preparation Technical field.
Background technology
Rubber is a kind of important strategic goods and materials, in national economy, new and high technology and national defence because of its unique high resiliency Military industry field has extremely wide application.Fanglun slurry cake be crimped by single-layer or multi-layer graphite flake or inlaid-assembling at it is seamless Hollow nanoscale coaxial cylindrical tubular material.The carbon atom of Fanglun slurry cake side wall is mainly with sp2 hydridization and adjacent carbon atom Formation height is delocalized to obtain pi-electron, so that easily gathering into bundles and being not easy there are stronger Van der Waals force between Fanglun slurry cake Dispersion.Fanglun slurry cake has important application as reinforcing filler in rubber.Fanglun slurry cake is introduced into rubber and improves rubber Comprehensive performance have been a hot spot of research.Fanglun slurry cake can not only improve the mechanical performance of rubber, while can assign its spy Different functionality.It is to play Fanglun slurry cake performance to improve dispersibility of the Fanglun slurry cake in rubber, promotes rubber comprehensive performance It is crucial.
Invention content
The purpose of the present invention is overcoming the deficiencies in the prior art, a kind of Fanglun slurry cake base rubber composite material is provided And preparation method thereof.
The present invention adopts the following technical scheme that:A kind of Fanglun slurry cake base rubber composite material, component are calculated by weight as: 100 parts of rubber, Fanglun slurry cake -0.1-20 parts of polyvinyl alcohol compound, 0.5-5 parts of polyvinyl butyral, 30-60 parts of carbon black, 5-10 parts of zinc oxide, 0.5-4 parts of stearic acid, 1-5 parts of anti-aging agent, 2-6 parts of sulphur, 0.5-2 parts of accelerating agent, antiscorching agent 0.1-0.4 Part.
Further, the mass ratio of Fanglun slurry cake and polyvinyl alcohol is 1 in the Fanglun slurry cake-polyvinyl alcohol compound:5 ~1:50。
Further, the preparation method of the Fanglun slurry cake-polyvinyl alcohol compound includes the following steps:
(1)Polyvinyl alcohol is dissolved in deionized water, compound concentration is the polyvinyl alcohol water solution of 1-10 wt%, waits being completely dissolved After be added ethyl alcohol, the volume fraction of ethyl alcohol is 1-5%, obtains poly-vinyl alcohol solution;
(2)Under fast stirring, step is added in Fanglun slurry cake(1)In poly-vinyl alcohol solution in, stirring it is equal to Fanglun slurry cake Even dispersion obtains Fanglun slurry cake-polyvinyl alcohol dispersion liquid;
(3)Fanglun slurry cake-polyvinyl alcohol dispersion liquid is dried into 2 ~ 24 h at room temperature, Fanglun slurry cake-polyvinyl alcohol is prepared Compound.
Further, the rubber is natural rubber, butadiene rubber, butadiene-styrene rubber, butyl rubber, EP rubbers, neoprene It is one or more in rubber.
The preparation method of Fanglun slurry cake base rubber composite material, includes the following steps:
(1)One section of masterbatching:It counts in parts by weight and sequentially adds 100 parts of natural rubber, Fanglun slurry cake-polyvinyl alcohol into mixer 0.1-20 parts of compound, 0.5-5 parts of polyvinyl butyral, 30-60 parts of carbon black, 5-10 parts of zinc oxide, 0.5-4 parts of stearic acid, 1-5 parts of anti-aging agent, closed-smelting machine rotor rotating speed are 45-55 revs/min, ram piston pressure 0.3-0.5MPa, and the refining glue time is 50- 140 seconds, dump temperature was 150-165 DEG C, obtains one section of rubber master batch;
(2)Refining eventually:One section of rubber master batch is added into mixer, 2-6 parts of sulphur, 0.5-2 parts of accelerating agent, 0.1-0.4 parts of antiscorching agent are close The rotor speed of mill is 20-40 revs/min, ram piston pressure 0.3-0.5MPa, and the refining glue time is 50-130 seconds, dumping temperature Degree is 90-110 DEG C, obtains finished composition.
Preparation method of the present invention is simple, and step is easily operated, and Fanglun slurry cake is scattered in polyvinyl alcohol in advance, avoids Fanglun slurry cake aggregation is agglomerating, ensure that Fanglun slurry cake is evenly dispersed in sizing material, and polyvinyl alcohol contracting is added in rubber compounding On the one hand butyraldehyde can interact with Fanglun slurry cake-polyvinyl alcohol compound, on the other hand can interact again with rubber, Fanglun slurry cake can be promoted evenly dispersed in sizing material, improve the comprehensive performance of sizing material.
Specific implementation mode
The present invention is further explained in the light of specific embodiments.
Embodiment 1
A kind of Fanglun slurry cake base rubber composite material, component are calculated by weight as:100 parts of T PNR, Fanglun slurry cake-polyethylene 0.1 part of alcohol compound, 2 parts of polyvinyl butyral, 30 parts of carbon black N234,10 parts of zinc oxide, 2 parts of stearic acid, antioxidant 4020 5 parts, 2 parts of sulphur, 2 parts of accelerant NOBS, 0.1 part of anti-scorching agent CTP.
Preparation method includes the following steps:
1)Polyvinyl alcohol is dissolved in deionized water, configuration concentration is the polyvinyl alcohol water solution of 1 wt%, is added until completely dissolved Enter ethyl alcohol, the volume fraction of ethyl alcohol is 3%, obtains poly-vinyl alcohol solution;
2)Under fast stirring, step is added in Fanglun slurry cake(1)In poly-vinyl alcohol solution in, stirring it is uniform to Fanglun slurry cake Dispersion, obtains Fanglun slurry cake-polyvinyl alcohol dispersion liquid;
3)Fanglun slurry cake-polyvinyl alcohol dispersion liquid is dried into 2 h at room temperature, it is compound that Fanglun slurry cake-polyvinyl alcohol is prepared The mass ratio of object, Fanglun slurry cake and polyvinyl alcohol is 1:5;
4) one section of masterbatching:Sequentially add 100 parts of natural rubber into mixer, Fanglun slurry cake -0.1 part of polyvinyl alcohol compound, 2 parts of polyvinyl butyral, 30 parts of carbon black N326,10 parts of zinc oxide, 2 parts of stearic acid, 5 parts of anti-aging agent, closed-smelting machine rotor rotating speed It it is 50 revs/min, ram piston pressure 0.4MPa, the refining glue time is 100 seconds, and dump temperature is 155 DEG C, obtains one section of rubber master batch;
5) refining eventually:One section of rubber master batch, 2 parts of sulphur, 2 parts of accelerating agent, 0.1 part of antiscorching agent, closed-smelting machine rotor turn are added into mixer Speed is 40 revs/min, ram piston pressure 0.3MPa, and the refining glue time is 130 seconds, and dump temperature is 90 DEG C, obtains finished composition.
Embodiment 2
A kind of Fanglun slurry cake base rubber composite material, component are calculated by weight as:100 parts of natural rubber, the poly- second of Fanglun slurry cake- 10 parts of enol compound, 5 parts of polyvinyl butyral, 40 parts of carbon black, 7 parts of zinc oxide, 4 parts of stearic acid, 2 parts of anti-aging agent RD, sulphur 6 parts of sulphur, 0.5 part of accelerant CZ, 0.4 part of anti-scorching agent CTP.
Preparation method includes the following steps:
1)Polyvinyl alcohol is dissolved in deionized water, configuration concentration is the polyvinyl alcohol water solution of 10 wt%, until completely dissolved Ethyl alcohol is added, volume fraction 1% obtains poly-vinyl alcohol solution;
2)Under fast stirring, step is added in Fanglun slurry cake(1)In poly-vinyl alcohol solution in, stirring it is uniform to Fanglun slurry cake Dispersion, obtains Fanglun slurry cake-polyvinyl alcohol dispersion liquid;
3)Fanglun slurry cake-polyvinyl alcohol dispersion liquid is dried into 12 h at room temperature, it is compound that Fanglun slurry cake-polyvinyl alcohol is prepared The mass ratio of object, Fanglun slurry cake and polyvinyl alcohol is 1:50;
4) one section of masterbatching:100 parts of natural rubber is sequentially added into mixer, Fanglun slurry cake -10 parts of polyvinyl alcohol compound gathers 5 parts of vinyl butyral, 40 parts of carbon black, 7 parts of zinc oxide, 4 parts of stearic acid, 2 parts of anti-aging agent, closed-smelting machine rotor rotating speed be 45 turns/ Minute, ram piston pressure 0.5MPa, the refining glue time is 50 seconds, and dump temperature is 165 DEG C, obtains one section of rubber master batch;
5) refining eventually:One section of rubber master batch, 6 parts of sulphur, 0.5 part of accelerating agent, 0.4 part of antiscorching agent, closed-smelting machine rotor are added into mixer Rotating speed is 20 revs/min, ram piston pressure 0.4MPa, and the refining glue time is 50 seconds, and dump temperature is 110 DEG C, obtains finished composition.
Embodiment 3
A kind of Fanglun slurry cake base rubber composite material, component are calculated by weight as:100 parts of natural rubber, the poly- second of Fanglun slurry cake- 20 parts of enol compound, 0.5 part of polyvinyl butyral, 60 parts of carbon black N375,5 parts of zinc oxide, 0.5 part of stearic acid, anti-aging agent 1 part of RD, 3 parts of sulphur, 1 part of accelerator DZ, 0.2 part of anti-scorching agent CTP.
Preparation method includes the following steps:
1)Polyvinyl alcohol is dissolved in deionized water, configuration concentration is the polyvinyl alcohol water solution of 5 wt%, is added until completely dissolved Enter ethyl alcohol, volume fraction 5% obtains poly-vinyl alcohol solution;
2)Under fast stirring, step is added in Fanglun slurry cake(1)In poly-vinyl alcohol solution in, stirring it is uniform to Fanglun slurry cake Dispersion, obtains Fanglun slurry cake-polyvinyl alcohol dispersion liquid;
3)Fanglun slurry cake-polyvinyl alcohol dispersion liquid is dried into 24 h at room temperature, it is compound that Fanglun slurry cake-polyvinyl alcohol is prepared The mass ratio of object, Fanglun slurry cake and polyvinyl alcohol is 1:25;
4) one section of masterbatching:100 parts of natural rubber is sequentially added into mixer, Fanglun slurry cake -20 parts of polyvinyl alcohol compound gathers 0.5 part of vinyl butyral, 60 parts of carbon black, 5 parts of zinc oxide, 0.5 part of stearic acid, 1 part of anti-aging agent, closed-smelting machine rotor rotating speed are 55 Rev/min, ram piston pressure 0.3MPa, the refining glue time is 140 seconds, and dump temperature is 150 DEG C, obtains one section of rubber master batch;
5) refining eventually:One section of rubber master batch, 3 parts of sulphur, 1 part of accelerating agent, 0.2 part of antiscorching agent, closed-smelting machine rotor turn are added into mixer Speed is 30 revs/min, ram piston pressure 0.5MPa, and the refining glue time is 80 seconds, and dump temperature is 100 DEG C, obtains finished composition.

Claims (5)

1. a kind of Fanglun slurry cake base rubber composite material, it is characterised in that:Component is calculated by weight as:100 parts of rubber, aramid fiber It is pulp -0.1-20 parts of polyvinyl alcohol compound, 0.5-5 parts of polyvinyl butyral, 30-60 parts of carbon black, 5-10 parts of zinc oxide, hard 0.5-4 parts of resin acid, 1-5 parts of anti-aging agent, 2-6 parts of sulphur, 0.5-2 parts of accelerating agent, 0.1-0.4 parts of antiscorching agent.
2. Fanglun slurry cake base rubber composite material as described in claim 1, it is characterised in that:Fanglun slurry cake-the polyethylene The mass ratio of Fanglun slurry cake and polyvinyl alcohol is 1 in alcohol compound:5~1:50.
3. Fanglun slurry cake base rubber composite material as described in claim 1, it is characterised in that:Fanglun slurry cake-the polyethylene The preparation method of alcohol compound includes the following steps:
(1)Polyvinyl alcohol is dissolved in deionized water, compound concentration is the polyvinyl alcohol water solution of 1-10 wt%, waits being completely dissolved After be added ethyl alcohol, the volume fraction of ethyl alcohol is 1-5%, obtains poly-vinyl alcohol solution;
(2)Under fast stirring, step is added in Fanglun slurry cake(1)In poly-vinyl alcohol solution in, stirring it is equal to Fanglun slurry cake Even dispersion obtains Fanglun slurry cake-polyvinyl alcohol dispersion liquid;
(3)Fanglun slurry cake-polyvinyl alcohol dispersion liquid is dried into 2 ~ 24 h at room temperature, Fanglun slurry cake-polyvinyl alcohol is prepared Compound.
4. Fanglun slurry cake base rubber composite material as described in claim 1, it is characterised in that:The rubber be natural rubber, It is one or more in butadiene rubber, butadiene-styrene rubber, butyl rubber, EP rubbers, neoprene.
5. the preparation method of Fanglun slurry cake base rubber composite material described in claim 1, it is characterized in that:Include the following steps:
(1)One section of masterbatching:It counts in parts by weight and sequentially adds 100 parts of natural rubber, Fanglun slurry cake-polyvinyl alcohol into mixer 0.1-20 parts of compound, 0.5-5 parts of polyvinyl butyral, 30-60 parts of carbon black, 5-10 parts of zinc oxide, 0.5-4 parts of stearic acid, 1-5 parts of anti-aging agent, closed-smelting machine rotor rotating speed are 45-55 revs/min, ram piston pressure 0.3-0.5MPa, and the refining glue time is 50- 140 seconds, dump temperature was 150-165 DEG C, obtains one section of rubber master batch;
(2)Refining eventually:One section of rubber master batch is added into mixer, 2-6 parts of sulphur, 0.5-2 parts of accelerating agent, 0.1-0.4 parts of antiscorching agent are close The rotor speed of mill is 20-40 revs/min, ram piston pressure 0.3-0.5MPa, and the refining glue time is 50-130 seconds, dumping temperature Degree is 90-110 DEG C, obtains finished composition.
CN201810412311.7A 2018-05-03 2018-05-03 A kind of Fanglun slurry cake base rubber composite material and preparation method thereof Pending CN108641128A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810412311.7A CN108641128A (en) 2018-05-03 2018-05-03 A kind of Fanglun slurry cake base rubber composite material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810412311.7A CN108641128A (en) 2018-05-03 2018-05-03 A kind of Fanglun slurry cake base rubber composite material and preparation method thereof

Publications (1)

Publication Number Publication Date
CN108641128A true CN108641128A (en) 2018-10-12

Family

ID=63749099

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810412311.7A Pending CN108641128A (en) 2018-05-03 2018-05-03 A kind of Fanglun slurry cake base rubber composite material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN108641128A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110128714A (en) * 2019-06-06 2019-08-16 江苏通用科技股份有限公司 A kind of aramid fiber short fibre base rubber composite material and preparation method thereof
CN113817235A (en) * 2021-10-12 2021-12-21 无锡安睿驰科技有限公司 Structure and manufacturing process of anti-prick silent tire

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104558708A (en) * 2015-01-19 2015-04-29 南京理工大学 Multifunctional vulcanized rubber containing polyvinylpyrrolidone-modified graphene oxide and preparation method of multifunctional vulcanized rubber

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104558708A (en) * 2015-01-19 2015-04-29 南京理工大学 Multifunctional vulcanized rubber containing polyvinylpyrrolidone-modified graphene oxide and preparation method of multifunctional vulcanized rubber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110128714A (en) * 2019-06-06 2019-08-16 江苏通用科技股份有限公司 A kind of aramid fiber short fibre base rubber composite material and preparation method thereof
CN113817235A (en) * 2021-10-12 2021-12-21 无锡安睿驰科技有限公司 Structure and manufacturing process of anti-prick silent tire

Similar Documents

Publication Publication Date Title
CN101332994B (en) Method for preparing reinforced white carbon black
CN108641128A (en) A kind of Fanglun slurry cake base rubber composite material and preparation method thereof
CN113372617B (en) Modification method and application of pyrolysis carbon black
CN105777142B (en) A kind of high-efficiency ceramic green body reinforcing agent and preparation method and application
CN113861511A (en) Modified pyrolysis carbon black, preparation method thereof and aging-resistant rubber compound
CN108586836A (en) Carbon fiber-based rubber composite material and preparation method thereof
CN110003503A (en) The preparation method of high-dispersibility carbon nanotube base rubber composite material
CN116332157B (en) Preparation method of nitrogen-metal doped carbon material and application of nitrogen-metal doped carbon material in rubber
CN108717974A (en) A kind of preparation method of lithium ion battery material
CN106957464A (en) A kind of CNT is dispersed in the preparation method in Heveatex
CN110396226B (en) Modified white carbon black and tread rubber thereof
CN102219931B (en) Method for preparing rubber reinforcing agent
CN108530697A (en) Carbon nanotube base rubber composite material and preparation method thereof
CN113443901A (en) High-strength alumina foamed ceramic and preparation method thereof
CN109721860A (en) A kind of ageing-resistant rubber crawler belt
CN113488606A (en) Preparation method of lithium battery electrode slurry
CN106549148B (en) A kind of spinel lithium manganate of high-temperature stable-foamed aluminium electrode material and preparation method
CN110128714A (en) A kind of aramid fiber short fibre base rubber composite material and preparation method thereof
CN109181038B (en) Preparation method of modified white carbon black tread rubber
CN103938491B (en) A kind of Waterproofing/oilproofing oil filter filter paper adding nano titanium oxide and preparation method thereof
CN108641129A (en) Graphene-based rubber composite material and preparation method thereof
CN108517055A (en) Nylon fiber base rubber composite material and preparation method thereof
CN110078469A (en) It is a kind of for dispergation and the ceramic mud additive of enhancing and preparation method thereof
CN108503905A (en) Graphite oxide alkenyl rubber composite material and preparation method thereof
WO2013097263A1 (en) Method for blending natural latex and silica slurry

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: 20181012