CN103602278A - Internal and external adhesive tape for pipeline anticorrosion - Google Patents
Internal and external adhesive tape for pipeline anticorrosion Download PDFInfo
- Publication number
- CN103602278A CN103602278A CN201310517266.9A CN201310517266A CN103602278A CN 103602278 A CN103602278 A CN 103602278A CN 201310517266 A CN201310517266 A CN 201310517266A CN 103602278 A CN103602278 A CN 103602278A
- Authority
- CN
- China
- Prior art keywords
- adhesive tape
- parts
- outside adhesive
- corrosion protection
- pipeline
- 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
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides an internal and external adhesive tape for pipeline anticorrosion. The adhesive tape comprises a base and a glue layer, wherein the base is a modified polypropylene fiber cloth having a thickness of 0.3-0.5mm; and the glue layer is an anticorrosive layer with butyl rubber as a base rubber, and comprises, by weight, 20-35 parts of the butyl rubber, 25-35 parts of polyisobutylene, 15-25 parts of a tackifying resin, 5-14 parts of a plasticizing system, 0.5-2 parts of titanium dioxide, 0.1-1 part of an antioxidant and 8-14 parts of a filler. The internal and external adhesive tape has a protection effect on a pipeline as an external adhesive tape, and has an anticorrosive effect on the pipeline as an internal adhesive tape, and there is a good adhesive property between the internal and external adhesive tape and the pipeline, and the adhesive tape also has a sealing property and a water penetration resistance.
Description
Technical field
The present invention relates to pipeline corrosion protection, in particular to the inside and outside adhesive tape of a kind of pipeline corrosion protection.
Background technology
The etching problem of steel is one of subject matter affecting the industry developments such as oil, and the Anticorrosion of resolving pipeline is to be related to industry development and the energy-conservation most important thing.Traditional anti-corrosion method is in pipeline corrosion protection field, mainly to adopt the agent of asphaltic base gluing to process the binding agent of steel pipe, but as time goes by, the cohesive strength of sizing agent lost efficacy gradually, had had at present pipeline that many places are the moving state in being badly in need of repairing.Existing 3PE anti-corrosion mode needs naked light and is not suitable for this class reparation of oil pipeline, adopts superior performance, pressure sensitive adhesive (PSA) and goods thereof easy to use to become one of effective solution of the above problems.
Inside and outside adhesive tape is a kind of of inside and outside adhesive tape, is characterized in easy to use, and various materials are all had to certain cohesive force, protects adhesive tape outward both can be used for buried steel pipe as pipeline, also can be used for workshop pipeline or suspension pipe line.But the inside and outside adhesive tape using at present often more or less exist some problems, the cohesive strength between some adhesive tape and steel pipe is little, the not good water resistant perviousness of some airtight performance is bad.
Summary of the invention
The invention solves deficiency of the prior art, provide that a kind of cohesiveness is good, water-proof sealing is superior, the inside and outside adhesive tape for pipeline corrosion protection of favorable anti-corrosion effect and easy construction.
Technical scheme of the present invention is: the inside and outside adhesive tape of a kind of pipeline corrosion protection, it comprises base material and glue-line, described base material is modified polypropylene fiber cloth, the thickness of described modified polypropylene fiber cloth is 0.3～0.5mm, described glue-line is for doing the preservative coat of basic rubber with isoprene-isobutylene rubber, described glue-line formula is counted by weight, comprise: 20～35 parts of isoprene-isobutylene rubbers, 25～35 parts of polyisobutene, 15～25 parts of tackifying resins, 5～14 parts of Plasticising systems, 0.5～2 part of titanium dioxide, 0.1～1 part of oxidation inhibitor, 8～14 parts of fillers.
Most preferred embodiment of the present invention, further comprises, described glue-line formula is counted by weight, comprising: 28 parts of isoprene-isobutylene rubbers, 30 parts of polyisobutene, 20 parts of tackifying resins, 9 parts of Plasticising systems, 1.5 parts of titanium dioxide, 0.5 part of oxidation inhibitor, 11 parts of fillers.
Most preferred embodiment of the present invention, further comprises, described tackifying resin is the mixture of C5 petroleum resin and terpine resin.In glue line material formula of the present invention, select the mixture of C5 petroleum resin and terpine resin as tackifying resin, not only Efficient Adhesive Promotion is better, and more economical.
Most preferred embodiment of the present invention, further comprises, described Plasticising system comprises environment-friendly aromatic oil or dibutyl phthalate.In glue line material formula, add softening agent, effectively strengthened the snappiness of glue-line, more easily processing, and the construction effect of product is better.
Most preferred embodiment of the present invention, further comprises, described oxidation inhibitor is the composite antioxidant of oxidation inhibitor 246 and zinc dibutyl dithiocarbamate.The present invention adopts this two kinds of composite antioxidants, and they have synergy, all better to the anti-old performance of thermooxidizing or photoxidation.
Most preferred embodiment of the present invention, further comprises, described mineral filler is that platy talc, median size are the light calcium carbonate of 0.1～3 μ m.What in formula of the present invention, adopt is platy talc, and sheet structure can significantly be improved tensile strength and stress at definite elongation; Light calcium carbonate in formula system, have reduce elongation and elastic loss can, the present invention selects the light calcium carbonate that median size is less, the reinforcing effect of the less filler of particle diameter is better, and the performances such as tensile strength, stress at definite elongation, tear strength and hardness are all better; And the larger filler of particle diameter impairs anti tear, resistance to subduing and wear resistant etc.
Most preferred embodiment of the present invention, further comprises, a kind of for the preparation of pipeline corrosion protection of the present invention the method with inside and outside adhesive tape, comprise the following steps:
(1) according to taking each component in pressure-sensitive adhesive layer material prescription, each component raw material is dropped in Banbury mixer, temperature is controlled at 130～160 ℃, and banburying was extruded mixture after 60 minutes in forcing machine, obtained glue line material;
(2) by the glue line material of preparation in step (1) under melted state, by automatic coating machine, be coated on the base material of modified polypropylene fiber cloth, Amount of spread is 10～12g/m
3, make inside and outside adhesive tape.
Most preferred embodiment of the present invention, further comprises, the bondline thickness on the modified polypropylene fiber cloth base material described in step (2) is 0.8～1.2mm.Not only the covering performance of glue is good on base material time for the method mesogloea coated materials of preparing adhesive tape of the present invention, and evenly, and bondline thickness is suitable, is difficult for too thickly, in order to avoid the thickness being wound around in construction is blocked up, affects preservative effect.
The defect that solves prior art of the present invention, has following beneficial effect:
1. inside and outside adhesive tape provided by the invention not only can be as in addition pipeline being played a protective role; but also can to pipeline, play preservative activity as interior band; between this inside and outside adhesive tape and pipeline, there is good cohesiveness, there is airtight performance and water resistant perviousness simultaneously.
2. through performance test is known, after priming paint surface drying (time is less than 5 minutes), can be wound around this inside and outside adhesive tape, and pipeline is carried out to corrosionproof protection, adhesive tape after being wound around time of drying at normal temperatures very fast, easy construction.
Embodiment
In order to make those skilled in the art person understand better the present invention, and above-mentioned advantage of the present invention can be become apparent more, below in conjunction with specific embodiment, the present invention is further detailed explanation.
Embodiment 1
(1) according to taking each component in glue line material formula: 28 parts of isoprene-isobutylene rubbers, 30 parts of polyisobutene, the mixture of 20 parts of C5 petroleum resin and terpine resin, 9 parts of environment-friendly aromatic oils, 1.5 parts of titanium dioxide, the composite antioxidant of 0.5 part of oxidation inhibitor 246 and zinc dibutyl dithiocarbamate, 11 parts of median sizes are the light calcium carbonate of 0.1～3 μ m; Each component raw material is dropped in Banbury mixer, and temperature is controlled at 130～160 ℃, and banburying was extruded mixture after 60 minutes in forcing machine, obtained glue line material;
(2) by the glue line material of preparation in step (1) under melted state, by automatic coating machine, be coated on the base material of modified polypropylene fiber cloth, Amount of spread is 10～12g/m
3, make inside and outside adhesive tape.
When glue being coated on modified polypropylene fiber cloth base material, bondline thickness is 0.8～1.2mm, and Amount of spread is also at 10～12g/m according to working control
3, the adhesive tape gluing making is like this even, and bondline thickness adapts to, and is conducive to construction.
Embodiment 2
(1) according to taking each component in glue line material formula: 20 parts of isoprene-isobutylene rubbers, 35 parts of polyisobutene, the mixture of 15 parts of C5 petroleum resin and terpine resin, 14 parts of dibutyl phthalates, 1.5 parts of titanium dioxide, the composite antioxidant of 0.5 part of oxidation inhibitor 246 and zinc dibutyl dithiocarbamate, 14 parts of median sizes are the light calcium carbonate of 0.1～3 μ m; Each component raw material is dropped in Banbury mixer, and temperature is controlled at 130～160 ℃, and banburying was extruded mixture after 60 minutes in forcing machine, obtained glue line material;
(2) by the glue line material of preparation in step (1) under melted state, by automatic coating machine, be coated on the base material of modified polypropylene fiber cloth, Amount of spread is 10～12g/m
3, make inside and outside adhesive tape.
When glue being coated on modified polypropylene fiber cloth base material, bondline thickness is 0.8～1.2mm, and Amount of spread is also at 10～12g/m according to working control
3, the adhesive tape gluing making is like this even, and bondline thickness adapts to, and is conducive to construction.
Embodiment 3
(1) according to taking each component in glue line material formula: 35 parts of isoprene-isobutylene rubbers, 25 parts of polyisobutene, the mixture of 25 parts of C5 petroleum resin and terpine resin, 14 parts of environment-friendly aromatic oils, 1.5 parts of titanium dioxide, the composite antioxidant of 0.1 part of oxidation inhibitor 246 and zinc dibutyl dithiocarbamate, 8.4 parts of platy talc; Each component raw material is dropped in Banbury mixer, and temperature is controlled at 130～160 ℃, and banburying was extruded mixture after 60 minutes in forcing machine, obtained glue line material;
(2) by the glue line material of preparation in step (1) under melted state, by automatic coating machine, be coated on the base material of modified polypropylene fiber cloth, Amount of spread is 10～12g/m
3, make inside and outside adhesive tape.
When glue being coated on modified polypropylene fiber cloth base material, bondline thickness is 0.8～1.2mm, and Amount of spread is also at 10～12g/m according to working control
3, the adhesive tape gluing making is like this even, and bondline thickness adapts to, and is conducive to construction.
Performance test
Inside and outside adhesive tape to embodiment 1-3 is done performance test, and the project of performance test comprises: the tensile strength of base material, the elongation at break of base material, to performances such as the stripping strength of steel pipe, electrical strength, volume specific resistance, heat aging property, water-intake rates.
Detected result as shown in table 1, the properties result of embodiment 1 will be got well compared to embodiment 2-3's, and embodiment 1 is the most preferred embodiment in the embodiment of the present invention.Tensile strength 19～the 21MPa of the inside and outside adhesive band base in embodiment 1-3, is better than standard base material tensile strength >=18MPa; Elongation at break, 387～412%, far away higher than the standard of base material elongation at break >=200%, illustrates that the elasticity of inside and outside adhesive tape of the present invention is larger, can be good at meeting the winding of anticorrosive construction, makes preservative effect better.
Inside and outside adhesive tape normal temperature of the present invention can reach 26N/cm to the stripping strength of pipeline, be greater than standard 20N/cm, at normal temperatures, under this inside and outside adhesive tape normal temperature, to the stripping strength maximum of backing, can reach 14N/cm, be greater than from far away 5N/cm, inside and outside adhesive tape is larger to the stripping strength of pipeline and backing, illustrates that the adhesive property of this inside and outside adhesive tape is superior; Water-intake rate is minimum is only 0.09%; lower than standard 0.2%; vapor permeability is all better lower than the waterproof effect of lower this material of explanation of standard 0.45% water-intake rate; be wrapped on pipeline and can prevent water smoke infiltration; its preservative effect is better; and this inside and outside adhesive tape is when shielding to pipeline in addition, water-proof sealing is particularly important also.
After testing by heat-proof aging, its heat-proof aging conservation rate, all more than 90%, is better than standard 75%, and the heat aging property of illustrative material is better; The aging conservation rate of ultraviolet resistance of this inside and outside adhesive tape is more than 90%; be better than standard 75%; the ultraviolet light oxidation susceptibility that adhesive tape is described is better; in the time that pipeline corrosion protection can being met, this adhesive tape is exposed to outside as protection use in addition; can stand to expose to the weather and the environment of high temperature, the corrosionproof protection effect that this adhesive tape can have been kept lastingly.The electrical strength of the adhesive tape in embodiment is all greater than 30MV/m, volume specific resistance>=1 * 10
12Ω m, its electric property is better.
After the clean drying treatment such as the appearance of the steel pipe that first will protect eliminates rust, deburring, decontamination; then the position that will protect at pipeline is coated with priming and (coordinates the inside and outside adhesive tape of the present invention to use; conventional anti-corrosive primer coating); priming paint is surface drying fast at normal temperatures; through test, be all no more than 5 minutes; after priming paint surface drying, with inside and outside adhesive tape provided by the invention, be wound around; after being wound around, tape surface is evenly smooth; without bubbling phenomenon; and not enough 10S; adhesive tape will be dried rapidly, saves the engineering time, constructability.
The base material of inside and outside adhesive tape of the present invention is modified polypropylene fiber cloth, the inside and outside adhesive tape of doing with this material not only well meets Construction corrosion prevention and provide protection aspect flexility, and this material be a kind of pollution-free, without harm environmental friendly, anti-corrosive product; Its fibrous texture can be resisted the creep fracture producing due to soil stress effectively, through material property, detects proof, and its corrosion fatigue life reaches more than 50 years, is the optimal selection of anticorrosion adhesive tape.It is existing material that the present invention prepares inside and outside adhesive tape modified polypropylene fiber cloth used; inside and outside adhesive tape prepared by subsidiary book invention glue line material; its adhesive property is higher; stopping property and water resistant perviousness are better; anticorrosion good with protective value; and itself and primer base have time of drying faster, constructability.Because of advantages such as its excellent performance, easy construction, moderate costs, be promptly applied to pipeline corrosion protection field.
The above; be only the specific embodiment of the present invention, protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim was defined.Table 1 the performance test results
Claims (8)
1. the inside and outside adhesive tape of pipeline corrosion protection, it is characterized in that, it comprises base material and glue-line, described base material is modified polypropylene fiber cloth, the thickness of described modified polypropylene fiber cloth is 0.3～0.5mm, described glue-line is for doing the preservative coat of basic rubber with isoprene-isobutylene rubber, described glue-line formula is counted by weight, comprise: 20～35 parts of isoprene-isobutylene rubbers, 25～35 parts of polyisobutene, 15～25 parts of tackifying resins, 5～14 parts of Plasticising systems, 0.5～2 part of titanium dioxide, 0.1～1 part of oxidation inhibitor, 8～14 parts of fillers.
2. the inside and outside adhesive tape of pipeline corrosion protection according to claim 1, is characterized in that, described glue-line formula is counted by weight, comprising: 28 parts of isoprene-isobutylene rubbers, 30 parts of polyisobutene, 20 parts of tackifying resins, 9 parts of Plasticising systems, 1.5 parts of titanium dioxide, 0.5 part of oxidation inhibitor, 11 parts of fillers.
3. the inside and outside adhesive tape of pipeline corrosion protection according to claim 2, is characterized in that, described tackifying resin is the mixture of C5 petroleum resin and terpine resin.
4. the inside and outside adhesive tape of pipeline corrosion protection according to claim 2, is characterized in that, described Plasticising system comprises environment-friendly aromatic oil or dibutyl phthalate.
5. the inside and outside adhesive tape of pipeline corrosion protection according to claim 2, is characterized in that, described oxidation inhibitor is the composite antioxidant of oxidation inhibitor 246 and zinc dibutyl dithiocarbamate.
6. the inside and outside adhesive tape of pipeline corrosion protection according to claim 1, is characterized in that, described mineral filler is that platy talc, median size are the light calcium carbonate of 0.1～3 μ m.
7. the method with inside and outside adhesive tape for the preparation of the pipeline corrosion protection described in claim 1-6, is characterized in that, comprises the following steps:
(1) according to taking each component in pressure-sensitive adhesive layer material prescription, each component raw material is dropped in Banbury mixer, temperature is controlled at 130～160 ℃, and banburying was extruded mixture after 60 minutes in forcing machine, obtained glue line material;
(2) by the glue line material of preparation in step (1) under melted state, by automatic coating machine, be coated on the base material of modified polypropylene fiber cloth, Amount of spread is 10～12g/m3, makes inside and outside adhesive tape.
8. method according to claim 7, is characterized in that, the bondline thickness on the modified polypropylene fiber cloth base material described in step (2) is 0.8～1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517266.9A CN103602278A (en) | 2013-10-28 | 2013-10-28 | Internal and external adhesive tape for pipeline anticorrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517266.9A CN103602278A (en) | 2013-10-28 | 2013-10-28 | Internal and external adhesive tape for pipeline anticorrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103602278A true CN103602278A (en) | 2014-02-26 |
Family
ID=50120549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310517266.9A Pending CN103602278A (en) | 2013-10-28 | 2013-10-28 | Internal and external adhesive tape for pipeline anticorrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103602278A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946156A (en) * | 2015-06-30 | 2015-09-30 | 湖南省交通规划勘察设计院 | Hot-pressing self-bonding winding adhesive tape |
| CN106554728A (en) * | 2016-11-11 | 2017-04-05 | 宁波朝辉新材料有限公司 | Pressure-sensitive Protection glue band of a kind of butyl rubber base and preparation method thereof |
| CN109096937A (en) * | 2018-08-15 | 2018-12-28 | 江苏宝力泰新材料科技有限公司 | A kind of high durable protective materials and preparation method thereof for aerial pipeline |
| CN110832046A (en) * | 2017-07-05 | 2020-02-21 | 复合防腐有限公司 | Anti-corrosion adhesive tape |
| CN114846099A (en) * | 2019-12-18 | 2022-08-02 | 株式会社Lg新能源 | Coated tape for inorganic layer for electrode and method for manufacturing same |
| CN116355555A (en) * | 2023-04-10 | 2023-06-30 | 舒氏集团有限公司 | Adhesive, rubber layer and waterproof leak-repairing adhesive tape |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363717A (en) * | 2011-08-26 | 2012-02-29 | 江苏达胜热缩材料有限公司 | Anticorrosive pressure sensitive adhesive tape and preparation method thereof |
| CN102965047A (en) * | 2012-12-19 | 2013-03-13 | 吴孟怀 | Double-sided all-purpose adhesive tape |
| CN203247224U (en) * | 2013-05-23 | 2013-10-23 | 济宁迅大管道防腐材料有限公司 | Novel aluminum foil antiseptic adhesive tape |
-
2013
- 2013-10-28 CN CN201310517266.9A patent/CN103602278A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363717A (en) * | 2011-08-26 | 2012-02-29 | 江苏达胜热缩材料有限公司 | Anticorrosive pressure sensitive adhesive tape and preparation method thereof |
| CN102965047A (en) * | 2012-12-19 | 2013-03-13 | 吴孟怀 | Double-sided all-purpose adhesive tape |
| CN203247224U (en) * | 2013-05-23 | 2013-10-23 | 济宁迅大管道防腐材料有限公司 | Novel aluminum foil antiseptic adhesive tape |
Non-Patent Citations (1)
| Title |
|---|
| 李子东等: "《胶黏剂助剂》", 28 February 2005, 化学工业出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946156A (en) * | 2015-06-30 | 2015-09-30 | 湖南省交通规划勘察设计院 | Hot-pressing self-bonding winding adhesive tape |
| CN106554728A (en) * | 2016-11-11 | 2017-04-05 | 宁波朝辉新材料有限公司 | Pressure-sensitive Protection glue band of a kind of butyl rubber base and preparation method thereof |
| CN110832046A (en) * | 2017-07-05 | 2020-02-21 | 复合防腐有限公司 | Anti-corrosion adhesive tape |
| CN109096937A (en) * | 2018-08-15 | 2018-12-28 | 江苏宝力泰新材料科技有限公司 | A kind of high durable protective materials and preparation method thereof for aerial pipeline |
| CN114846099A (en) * | 2019-12-18 | 2022-08-02 | 株式会社Lg新能源 | Coated tape for inorganic layer for electrode and method for manufacturing same |
| CN116355555A (en) * | 2023-04-10 | 2023-06-30 | 舒氏集团有限公司 | Adhesive, rubber layer and waterproof leak-repairing adhesive tape |
| CN116355555B (en) * | 2023-04-10 | 2023-09-19 | 舒氏集团有限公司 | Adhesive, rubber layer and waterproof leak-repairing adhesive tape |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103602278A (en) | Internal and external adhesive tape for pipeline anticorrosion | |
| CN103602273A (en) | Cold pressure-sensitive adhesive tape for pipeline anticorrosion | |
| KR20100134800A (en) | Adhesive tape | |
| CN108779376A (en) | For wrapping shield elongate articles such as the particularly adhesive tape of core of a cable and packet maintaining method | |
| CN102027087A (en) | Adhesive film | |
| DE602007005273D1 (en) | PROCESS FOR PROVIDING AN EXTENDED ROASTER PROTECTION CORROSIVE SYSTEM | |
| RU2545297C2 (en) | Vinyl tape for mechanical and anticorrosion protection | |
| CN103602290B (en) | Pipeline joint anticorrosion dry film hot melt adhesive | |
| CN102702996A (en) | Non-drying antiseptic sealant with drying capacity and preparation method thereof | |
| CA2768673A1 (en) | Composition for the protection of a shaped article against corrosion | |
| KR20180037512A (en) | Waterproof sheets with a thin waterproof layer and manufacturing method thereof | |
| JP6983561B2 (en) | Anti-corrosion structure | |
| WO2006062197A1 (en) | Adhesive tape | |
| CN103602291A (en) | Cold-tangled anticorrosion adhesive tape for pipeline anticorrosion | |
| KR101280975B1 (en) | The coating primer to be united with asphalt waterproof sheets. | |
| CA2955916C (en) | Composition for the protection of an article against corrosion | |
| RU90527U1 (en) | ROLL ANTI-CORROSION MATERIAL (OPTIONS) | |
| CN105946323A (en) | Saline-alkaline-corrosion-resistant waterproof coiled material | |
| RU2368637C1 (en) | Mastic | |
| CA3068786A1 (en) | Corrosion prevention tape | |
| CN104672998A (en) | Rubber asphalt waterproof coating | |
| JP3591122B2 (en) | Polypropylene-coated steel pipe with excellent resistance to heat oxidation deterioration, low-temperature embrittlement resistance and water-resistant secondary adhesion | |
| CN113462306B (en) | Self-adhesive polymer waterproof coiled material and preparation method thereof | |
| CN102993578A (en) | High-temperature resistant and highly-condensed type waterproof seal puddle | |
| EA021691B1 (en) | Anticorrosion insulating tape |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140226 |