CN103435914B - Position, a kind of car door sealing strip turning is with engaging sizing material and preparation method - Google Patents
Position, a kind of car door sealing strip turning is with engaging sizing material and preparation method Download PDFInfo
- Publication number
- CN103435914B CN103435914B CN201310324585.8A CN201310324585A CN103435914B CN 103435914 B CN103435914 B CN 103435914B CN 201310324585 A CN201310324585 A CN 201310324585A CN 103435914 B CN103435914 B CN 103435914B
- Authority
- CN
- China
- Prior art keywords
- parts
- sizing material
- sealing strip
- car door
- door sealing
- 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.)
- Active
Links
Landscapes
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Position, a kind of car door sealing strip turning is with engaging sizing material and preparation method, its technical scheme is: described combination sizing material is formulated by the material of following mass parts: ethylene propylene diene rubber K4869:100～160 part, ethylene propylene diene rubber 4045M:20～50 part, zinc oxide: 3～8 parts, stearic acid: 1～3 part, dispersant L-24:1～3 part, polyethylene glycol: 2～5 parts, FEF level carbon black N550:60～100 part, precipitated calcium carbonate: 20～80 parts, paraffin oil: 40～70 parts, hygroscopic agent: 3～8 parts, antiscorching agent: 0.1～0.5 part, sulphur: 0.8～1.6 part, promoter: 1.7～4.7 parts. the Mooney viscosity of product of the present invention is increased to 16, and hot strength is increased to 12.3MPa, and has obviously improved the shearing force when mixing, improves the dispersiveness of filler, and skidding while stopping rubber compounding, has improved production efficiency.
Description
Technical field
The present invention relates to a kind of rubber, joint sizing material and preparation method that particularly position, car door sealing strip turning is used.
Background technology
Car door sealing strip is mainly used in the position, gap that the door, window, hatchcover of automobile etc. needs sealing, except playing sealing function, prevent inside and outside the harmful substance intrusion cars such as outside dust storm, rainwater and dust, can also play damping, sound insulation and decoration function, to improve the working life of automobile component and the riding comfort of automobile. Because of the otherness of body of a motor car panel beating different parts structure, cause the section structure material of weather strip for automobile different parts changeable, the particularly activity of automobile door and window and fixed position, and corner, bending and the different parts such as straight, in order to reach assembling effect, need to use engage sizing material by different section material through the heat cure complete sealing strip of composition that bonds, for normal assembling, and finally realize the function of sealing strip. Position, existing car door sealing strip turning, with engaging sizing material, adopts the closely knit glue of soft to engage. Buffering effect and door closing force when ensureing closing of the door, the hardness of sizing material need to be controlled between 35～40 degree, and in order to reach the requirement of such soft, in existing sizing compound formula, need to fill a large amount of paraffin oils, but a large amount of filled stone wax oil can cause, rubber strength is low, physical and mechanical properties is poor; And when mixing because adding in a large number paraffin oil to occur skidding, make the mixing process time extend to 10 minutes; In addition low compound viscosity reduces the shear stress when mixing, and filler grain is difficult to disperse, and while affect the dispersiveness of sizing material and molded vulcanization, low pressure in die cavity, makes gas be difficult to discharge, affects the compactness of product, and the defect such as occur choking with resentment.
Summary of the invention
The present invention provides a kind of Mooney viscosity that can obviously improve sizing material for overcoming the defect of prior art, occur that the position, car door sealing strip turning of skidding is with engaging sizing material and preparation method when improving the dispersed of filler and stopping rubber compounding.
The alleged problem of the present invention is solved by following technical scheme:
Position, a kind of car door sealing strip turning is with engaging sizing material, its special feature is: described combination sizing material is formulated by the material of following mass parts: ethylene propylene diene rubber K4869:100～160 part, ethylene propylene diene rubber 4045M:20～50 part, zinc oxide: 3～8 parts, stearic acid: 1～3 part, dispersant L-24:1～3 part, polyethylene glycol: 2～5 parts, FEF level carbon black N550:60～100 part, precipitated calcium carbonate: 20～80 parts, paraffin oil: 40～70 parts, hygroscopic agent: 3～8 parts, antiscorching agent: 0.1～0.5 part, sulphur: 0.8～1.6 part, promoter: 1.7～4.7 parts.
Position, above-mentioned car door sealing strip turning is with engaging sizing material, described promoter is made up of the material of following mass parts: accelerant B Z:0.8～1.6 part, captax: 0.5～1.5 part, accelerant N a-22:0.2～0.8 part, diphenylguanidine TDM:0.2～0.8 part.
Position, above-mentioned car door sealing strip turning is with engaging sizing material, and described antiscorching agent is anti-scorching agent CTP, and described paraffin oil is 300# paraffin oil, and described hygroscopic agent is hygroscopic agent GR.
Position, above-mentioned car door sealing strip turning joint glue preparation method for material, it comprises and weighs operation, once mixing operation, the mixing operation of secondary, shaping operation, bonding process, the mixing time of described once mixing operation is controlled at 360s ± 10s.
Position, above-mentioned car door sealing strip turning joint glue preparation method for material, the junction temperature of described combination operation is 165 DEG C ± 10 DEG C, engaging time is 90s ± 10s.
The present invention is directed to position, general-utility car door weather strip turning low with engaging rubber strength, the problem that occurs when mixing skidding etc. is improved by the raw material proportioning and the preparation method that engage sizing material position, car door sealing strip turning, through kind and the proportioning of the selected rubber of development test repeatedly, reduce paraffin oil consumption, suitably increase amount of filler, and by the each component of optimum organization vulcanizing system, ensure sizing material processing stability, reduce the harmful effect that material moisture docking symphysis is produced, in the situation that coordinating hygroscopic agent GR to exist, owe sulphur, under the state of over cure, all there will not be bloom phenomenon. test shows, the Mooney viscosity of joint sizing material of the present invention is increased to 16(testing conditions ML(1+4 by 10 of common sizing material), 125 DEG C), hot strength is increased to 12.3MPa by 6.3MPa, and obviously improve the shearing force when mixing, when improving the dispersed of filler and stopping rubber compounding, there is the problem of skidding, significantly shortened mixing activity time and in conjunction with activity time, improved production efficiency.
Detailed description of the invention
Position, car door sealing strip of the present invention turning is analyzed as follows with the recipe principle that engages sizing material:
One, rubber: prior art sizing material rubber adopts oil extended EPDM 3072EM and low mooney viscosity, low the 3rd monomer ethylene propylene diene rubber KEP210 and uses, this rubber collocation, cause low sizing consumption and high paraffin oil consumption in integral formulation, cause that rubber compounding skids, mixing time grows to 600s, limit because of the 3rd content of monomer, the curingprocess rate of sizing material is slower. The primary raw material rubber of product of the present invention is selected the rubber of HMW, to accept a large amount of filled stone wax oils, thereby obtains high sizing material Mooney viscosity and intensity, improves the processing characteristics of sizing material and the physical and mechanical properties of vulcanizate. Simultaneously, cause mixing difficulty for fear of more interpolation paraffin oil, use oil-filled rubber that the rubber of these high Mooney viscosities is first effectively softened, calendering process performance improvement, and the supra polymer of rubber itself quantizes to make again it in cooperation when a large amount of oiling, the viscosity of sizing material and intensity are unlikely to reduce excessively, thereby have ensured the process industrial art performance that sizing material is essential. Select suitable oil-filled rubber, even if adopt the filler of LR low reinforcing also can obtain higher rubber strength, can reduce the problem that adds a large amount of paraffin oils to bring when mixing, shorten the mixing process time, reduce production costs. But, in practice, find to use the rubber of the single trade mark can cause rubber mobility variation, because the use of paraffin oil can affect rubber vulcanization speed, therefore need in formula, be aided with the rubber of middle low mooney viscosity, high the 3rd content of monomer, ensure mobility and the sulfidization molding speed of sizing material. In sum, the preferred rubber trade mark of the present invention is the oil-filled 100PHR of oil extended EPDM K4869() 100～160 parts with the ethylene propylene diene rubber 4045M(ML(1+4 of middle low mooney viscosity, high the 3rd monomer), 125 DEG C: 45; 7.6%) 20～50 parts both be used in conjunction with, ensure intensity own and the processing characteristics of sizing material, can ensure again good mobility and curingprocess rate fast.
Two, filler: soft sizing material, under the pressure of the particular/special requirement of hot strength, tear-proof, the aspect such as wear-resisting, need to adopt the carbon black of medium reinforcement, rationally adds the carbon black of medium reinforcement in improving rubber strength, also can make sizing material have good processing characteristics. Therefore filler of the present invention is taking medium reinforcement carbon black N550(60-100 part) as main, suitably improve the content of carbon black, ensureing on the basis of physical property, coordinate a certain amount of precipitated calcium carbonate (20-80 part), the hot strength of sizing material is obviously improved, hot strength is increased to 12.3MPa by 6.3MPa, uses a small amount of white filler precipitated calcium carbonate in formula simultaneously, can ensure newly to coordinate the cost of system not higher than prior art.
Three, paraffin oil: in order to reach the soft requirement of sizing material, in sizing material, the consumption of softening agent is conventionally larger, softening agent of the present invention selects to have with ethylene propylene diene rubber the 300# paraffin oil of better compatibility, to prevent oozing out of oil plant. In proportioning of the present invention, addition 40-70 part of paraffin oil, compares general consumption and reduces approximately 20%, has so both ensured processing characteristics, has stopped skidding in mixing process, again mixing time is foreshortened to 360s. Reducing after the addition of paraffin oil the oil-filled 100PHR of the oil-filled rubber ethylene propylene diene rubber of choice for use K4869(), ensure the soft of sizing material.
Four, vulcanizing system: soft sizing material need to use the oil plant of volume, obvious to the diluting effect of vulcanizing system, can reduce crosslinking degree and the efficiency of sizing material, so vulcanizing system should suitably strengthen according to actual conditions in sizing material. The present invention is selecting to adopt taking sulphur (0.8-1.6 part) as vulcanizing agent and be equipped with sulfur-donor diphenylguanidine TDM(0.2-0.8 part when vulcanizing system), be aided with accelerant B Z(0.8-1.6 part), captax (0.5-1.5 part), accelerant N a-22(0.2-0.8 part) semi effcient vulcanization system. Meanwhile, coordinate and add anti-scorching agent CTP (0.1-0.5 part) and hygroscopic agent GR(3-8 part), to extend the processing stability of sizing material time of scorch, guarantee sizing material, reduce the harmful effect that material moisture docking symphysis is produced. The preferred compositions of above-mentioned vulcanizing system, is outstanding improvement of the present invention, adopts this vulcanizing system, in the situation that coordinating hygroscopic agent GR to exist, no matter owes, under the state of sulphur, over cure, all to there will not be bloom phenomenon.
Position, car door sealing strip of the present invention turning is as follows with the process of preparing that engages sizing material:
Weigh and--once mixingly--park for the first time that----shaping--is parked--joint to secondary mixing (add vulcanizing agent and promoter) for the second time.
In each operation of above-mentioned technique, be embodied in once mixing and bonding process with conventional method difference. Wherein once the processing performance due to sizing material improves in mixing operation, stops skidding in mixing process, and therefore mixing time is controlled at 360s ± 10s. Engaging production process: junction temperature is 165 DEG C ± 10 DEG C, engaging time is 90s ± 10s, and (180 DEG C of junction temperatures, engaging time 120s) reduced junction temperature, shortened engaging time compared to existing technology, improve production efficiency, reduced production cost.
Below provide several raw material proportioning embodiment of the present invention:
Embodiment 1, takes raw material according to following mass parts: the oil-filled 100PHR of ethylene propylene diene rubber K4869() 100 parts, ethylene propylene diene rubber 4045M30 part, 3 parts, zinc oxide, 1 part of stearic acid, dispersant L-241.5 part, 2.5 parts of polyethylene glycol, FEF level carbon black N55060 part, 80 parts of precipitated calcium carbonates, 40 parts of 300# paraffin oils, 0.8～1.6 part, sulphur, hygroscopic agent GR3～8 part, 0.2 part of anti-scorching agent CTP, accelerant B Z1.2 part, 0.5 part of captax, accelerant N a-220.8 part, diphenylguanidine TDM0.2 part.
Embodiment 2, takes raw material according to following mass parts: the oil-filled 100PHR of ethylene propylene diene rubber K4869() 60 parts, ethylene propylene diene rubber 4045M20 part, 5 parts, zinc oxide, 3 parts of stearic acid, dispersant L-241 part, 5 parts of polyethylene glycol, FEF level carbon black N55070 part, 20 parts of precipitated calcium carbonates, 45 parts of 300# paraffin oils, 0.8 part, sulphur, hygroscopic agent GR4 part, 0.1 part of anti-scorching agent CTP, accelerant B Z1.0 part, 0.7 part of captax, accelerant N a-220.2 part, diphenylguanidine TDM0.6 part.
Embodiment 3, takes raw material according to following mass parts: the oil-filled 100PHR of ethylene propylene diene rubber K4869() 120 parts, ethylene propylene diene rubber 4045M50 part, 8 parts, zinc oxide, 2 parts of stearic acid, dispersant L-242 part, 3 parts of polyethylene glycol, FEF level carbon black N55080 part, 60 parts of precipitated calcium carbonates, 70 parts of 300# paraffin oils, 1.6 parts, sulphur, hygroscopic agent GR3 part, 0.5 part of anti-scorching agent CTP, accelerant B Z1.6 part, 1.2 parts of captaxs, accelerant N a-220.5 part, diphenylguanidine TDM0.3 part.
Embodiment 4, takes raw material according to following mass parts: the oil-filled 100PHR of ethylene propylene diene rubber K4869() 150 parts, ethylene propylene diene rubber 4045M40 part, 6 parts, zinc oxide, 2.5 parts of stearic acid, dispersant L-243 part, 2 parts of polyethylene glycol, FEF level carbon black N550100 part, precipitated calcium carbonate 20,60 parts of 300# paraffin oils, 1.2 parts, sulphur, hygroscopic agent GR6 part, 0.3 part of anti-scorching agent CTP, accelerant B Z0.8 part, 1.5 parts of captaxs, accelerant N a-220.3 part, diphenylguanidine TDM0.5 part.
Embodiment 5, takes raw material according to following mass parts: the oil-filled 100PHR of ethylene propylene diene rubber K4869() 130 parts, ethylene propylene diene rubber 4045M35 part, 4 parts, zinc oxide, 1.5 parts of stearic acid, dispersant L-242 part, 4.5 parts of polyethylene glycol, FEF level carbon black N55090 part, 30 parts of precipitated calcium carbonates, 50 parts of 300# paraffin oils, 1.5 parts, sulphur, hygroscopic agent GR8 part, 0.4 part of anti-scorching agent CTP, accelerant B Z1.2 part, 0.9 part of captax, accelerant N a-220.7 part, diphenylguanidine TDM0.8 part.
Position, car door sealing strip turning with engage sizing material and preparation method comprise weighings, once mixing, park for the first time, secondary mixing (interpolation vulcanizing agent and promoter), shaping, park for the second time, engage. Wherein once mixing operation mixing time is controlled at 360s ± 10s, is 165 DEG C ± 10 DEG C in conjunction with junction temperature in operation, and engaging time is 90s ± 10s, and other operation is produced according to common process parameter.
Claims (4)
1. position, a car door sealing strip turning is with engaging sizing material, it is characterized in that: described joint sizing material is formulated by the material of following mass parts: ethylene propylene diene rubber K4869:100～160 part, ethylene propylene diene rubber 4045M:20～50 part, zinc oxide: 3～8 parts, stearic acid: 1～3 part, dispersant L-24:1～3 part, polyethylene glycol: 2～5 parts, FEF level carbon black N550:60～100 part, precipitated calcium carbonate: 20～80 parts, paraffin oil: 40～70 parts, hygroscopic agent: 3～8 parts, antiscorching agent: 0.1～0.5 part, sulphur: 0.8～1.6 part, promoter: 1.7～4.7 parts,
Described promoter is made up of the material of following mass parts: accelerant B Z:0.8～1.6 part, and captax: 0.5～1.5 part, accelerant N a-22:0.2～0.8 part, diphenylguanidine TDM:0.2～0.8 part.
2. position, car door sealing strip according to claim 1 turning, with engaging sizing material, is characterized in that: described antiscorching agent is anti-scorching agent CTP, and described paraffin oil is 300# paraffin oil, and described hygroscopic agent is hygroscopic agent GR.
3. position, car door sealing strip according to claim 1 and 2 turning joint glue preparation method for material, it comprises and weighs operation, once mixing operation, the mixing operation of secondary, shaping operation, bonding process, it is characterized in that: the mixing time of described once mixing operation is controlled at 360s ± 10s.
4. position, car door sealing strip according to claim 3 turning joint glue preparation method for material, is characterized in that: the junction temperature of described bonding process is 165 DEG C ± 10 DEG C, and engaging time is 90s ± 10s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310324585.8A CN103435914B (en) | 2013-07-30 | 2013-07-30 | Position, a kind of car door sealing strip turning is with engaging sizing material and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310324585.8A CN103435914B (en) | 2013-07-30 | 2013-07-30 | Position, a kind of car door sealing strip turning is with engaging sizing material and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103435914A CN103435914A (en) | 2013-12-11 |
| CN103435914B true CN103435914B (en) | 2016-05-04 |
Family
ID=49689641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310324585.8A Active CN103435914B (en) | 2013-07-30 | 2013-07-30 | Position, a kind of car door sealing strip turning is with engaging sizing material and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103435914B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103709526A (en) * | 2013-12-12 | 2014-04-09 | 建新赵氏集团有限公司 | Rubber material capable of eliminating retentate on extrusion die |
| CN104387677A (en) * | 2014-11-05 | 2015-03-04 | 安徽龙川橡塑科技有限公司 | Anti-aging rubber |
| CN105504549A (en) * | 2016-01-22 | 2016-04-20 | 太仓冠联高分子材料有限公司 | Low-VOC and smell-free environmental-protection automobile sealing strip rubber and preparation method thereof |
| CN105504550A (en) * | 2016-01-22 | 2016-04-20 | 太仓冠联高分子材料有限公司 | Weather-proof environment-friendly rubber tube material with high stress at definite elongation and preparing method thereof |
| CN106609005B (en) * | 2016-04-28 | 2020-10-23 | 保定威奕汽车有限公司 | Sealing strip butt joint sheet rubber material and preparation method thereof, and processing method and processing device of sealing strip butt joint sheet rubber sheet |
| CN106243530A (en) * | 2016-09-14 | 2016-12-21 | 福州福启橡塑有限公司 | A kind of complete vehicle system sealing strip and preparation method thereof |
| CN109370065B (en) * | 2018-10-15 | 2021-05-04 | 浙江仙通橡塑股份有限公司 | Rubber compound for automobile sealing strip continuously mixed by one-step method and preparation method thereof |
| CN111171464A (en) * | 2020-02-24 | 2020-05-19 | 天津中和胶业股份有限公司 | EPDM foamed car lamp sealing ring material and preparation method thereof |
| CN112409706A (en) * | 2020-12-01 | 2021-02-26 | 江苏冠联新材料科技股份有限公司 | Waterproof automotive sponge sealing strip sizing material |
| CN113754961A (en) * | 2021-08-26 | 2021-12-07 | 浙江韦氏电器有限公司 | Rubber compound, preparation method and application |
| CN114516989B (en) * | 2022-01-29 | 2023-09-15 | 江门市鑫辉密封科技有限公司 | EPDM halogen-free flame retardant rubber and preparation method thereof |
| CN115386172A (en) * | 2022-09-23 | 2022-11-25 | 江西奋发科技有限公司 | High-performance low-compression-set ethylene propylene diene monomer sealing rubber strip |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6422571B1 (en) * | 2000-04-26 | 2002-07-23 | Hutchinson Sealing Systems, Inc. | Automotive vehicle seal and decorative trim strip |
| CN101245237A (en) * | 2008-03-22 | 2008-08-20 | 解忠深 | Composite water-proof coil stock of rubber and producing method thereof |
| CN102516673A (en) * | 2011-11-30 | 2012-06-27 | 长城汽车股份有限公司 | Car door-window straight-line part gland strip and preparation method |
| CN103194155A (en) * | 2013-04-28 | 2013-07-10 | 长城汽车股份有限公司 | Automobile door glass guide groove seal bar adhesive material and applications thereof |
-
2013
- 2013-07-30 CN CN201310324585.8A patent/CN103435914B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6422571B1 (en) * | 2000-04-26 | 2002-07-23 | Hutchinson Sealing Systems, Inc. | Automotive vehicle seal and decorative trim strip |
| CN101245237A (en) * | 2008-03-22 | 2008-08-20 | 解忠深 | Composite water-proof coil stock of rubber and producing method thereof |
| CN102516673A (en) * | 2011-11-30 | 2012-06-27 | 长城汽车股份有限公司 | Car door-window straight-line part gland strip and preparation method |
| CN103194155A (en) * | 2013-04-28 | 2013-07-10 | 长城汽车股份有限公司 | Automobile door glass guide groove seal bar adhesive material and applications thereof |
Non-Patent Citations (1)
| Title |
|---|
| EPDM的性能研究;高树峰等;《像塑技术与设备》;20051231;第31卷(第4期);第32-34页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103435914A (en) | 2013-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103435914B (en) | Position, a kind of car door sealing strip turning is with engaging sizing material and preparation method | |
| CN102775687B (en) | Sponge adhesive tape jointed on corners of doors and windows of car, and preparation method thereof | |
| CN103073754B (en) | Low-rolling-resistance tire tread rubber composition | |
| CN107573600A (en) | A kind of railway tunnel special (purpose) rubber water stop rubber and its preparation technology | |
| KR20120001729A (en) | Crosslinkable rubber composition, uses thereof, rubber granules made of the same, and methods of preparation and injection forming methods of the rubber granules | |
| CN102086275A (en) | Zero degree belt compound of all-steel radial tire | |
| CN103403080B (en) | Rubber composition and by using the tire of its production | |
| CN103804802A (en) | Automobile sealing strip and manufacturing method thereof | |
| CN103804806A (en) | Rubber composite applicable to inside liner of tubeless tire | |
| CN103421250A (en) | Preparation method for novel rubber strip for sealing of automobile doors and windows and product | |
| KR20080112991A (en) | Rubber composition for side wall, as well as pneumatic tire | |
| JP2015129239A (en) | pneumatic tire | |
| CN105646959A (en) | Rubber composition, rubber composition preparation method and application of rubber composition to 3D (three-dimensional) printing of pneumatic tires | |
| CN106496805A (en) | A kind of antibacterial weather strip for automobile elastomeric material and preparation method thereof that eliminates the unusual smell | |
| JP2017222763A (en) | Production method of rubber composition for tire and rubber composition for tire | |
| CN102653615A (en) | Method for preparing blade of cooling fan of automobile engine | |
| JP4874315B2 (en) | Rubber composition for tire and tire | |
| CN104861226A (en) | Polypropylene material for car dust cover and preparation method thereof | |
| CN102634082A (en) | Tire tread base rubber composition and preparation method | |
| KR101110484B1 (en) | Rubber composition for sidewall and process for producing the same | |
| JP2008189846A (en) | Rubber composition for tire tread | |
| CN113174110A (en) | EPDM clamping material and preparation method and application thereof | |
| JP2007169558A (en) | Rubber composition and pneumatic tire using the same | |
| JP5102865B2 (en) | Method for producing rubber composition for sidewall, rubber composition for sidewall and pneumatic tire | |
| CN103483705A (en) | Inner liner compound for truck tire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |