CN103771803A - Foam concrete with efficient sound-absorption and heat-preservation functions and preparation method thereof - Google Patents
Foam concrete with efficient sound-absorption and heat-preservation functions and preparation method thereof Download PDFInfo
- Publication number
- CN103771803A CN103771803A CN201410012491.1A CN201410012491A CN103771803A CN 103771803 A CN103771803 A CN 103771803A CN 201410012491 A CN201410012491 A CN 201410012491A CN 103771803 A CN103771803 A CN 103771803A
- Authority
- CN
- China
- Prior art keywords
- cement
- foamed concrete
- heat insulation
- sound absorption
- efficient sound
- 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
Images
Abstract
The invention relates to foam concrete with efficient sound-absorption and heat-preservation functions and a preparation method thereof. The method comprises the following steps: adopting a cement gelatin material, a foam stabilizer and a pore structure regulator material to mix with a chemical foaming agent and water, so as to prepare even slurry; casting into a mold, and preparing the foam concrete with fine communicated holes on an air bubble wall after foaming and hardening. The prepared foam concrete has fine communicated holes on the air bubble wall besides having macro and even large air bubbles, the entering sound wave transmits through the fine holes when the sound wave enters and penetrates into the internal part of the foam concrete, and sound wave energy is quickly decayed. Thus, the sound-absorption performance is effectively improved, and meanwhile, the effect on the heat retaining property of the material caused by the fine holes is small.
Description
Technical field
The present invention relates to a kind of foamed concrete, especially relate to a kind of foamed concrete with efficient sound absorption-heat insulation function and preparation method thereof.
Background technology
Vigorously promote the use energy saving building material, grow continuously and fast and be extremely important for save energy, protection of the environment, maintenance Chinese national economy.Building heat preservation lagging material is the basic substance of building energy conservation.Inorganic heat insulation material fire line is good, flame retardant resistance is strong, weather resistance is high, long service life, construction process is simple, engineering cost is low and meet the requirement of ecological, environmental protective, can realize in process of production cycling and reutilization.Foamed concrete is a kind of new building insulation material of environmental protection and energy saving.The material that foamed concrete uses is mainly inorganic materials, and the feature of environmental protection is good.Foamed concrete outer wall heat preservation system has good fire resistance, lower water-intake rate, good heat-insulating property, and cheap price, is the material that outer wall heat preservation system is comparatively suitable.The preparation of foamed concrete is divided into physical blowing and chemical foaming technology, and physical blowing process using mechanical stirring or pressurized air mode make whipping agent produce a large amount of foams, and foam dispersion forms porous bubble structure in slip; Chemical foaming technology is in concrete slurry, to add whipping agent, and whipping agent and slip material generation chemical reaction discharge gas and form tiny bubble.Chemical foaming technology is suitable for prefabrication product, as external wall insulation, combined wall board etc.
Along with social development, the background noise in city increases day by day.Noise has become the integral part of environmental pollution.Buildings adopts sound-absorbing material can reduce room noise, has important social effect.Early stage because resident's environmental consciousness is not strong, lower for the requirement of building, take shelter from rain as long as becalm.Along with the raising of social environment consciousness, require progressively to improve for the Control Noise Pollution of environment.Provide relevant environmental-friendly construction material to there is vast potential for future development.
In regular foam concrete body, be rich in a large amount of holes, but it mostly is closure bubble hole, walls is solid cement slurry, and therefore its sound absorbing capabilities is not outstanding, is mainly used in heat-insulation material, not as sound-absorbing material.
Summary of the invention
Object of the present invention is exactly to provide a kind of foam coagulation with efficient sound absorption-heat insulation function in order to overcome the defect that above-mentioned prior art exists.
Object of the present invention can be achieved through the following technical solutions: a kind of foamed concrete with efficient sound absorption-heat insulation function, it is characterized in that, and this concrete comprises the component of following weight part content:
Cement, 100;
Pore structure conditioning agent, 10～20;
Suds-stabilizing agent, 0.01～0.1;
Subsidiary material, 40～70;
Water 60～70.
Described cement refers to silicate cement or aluminosulfate cement.
Described pore structure conditioning agent refers to hydrogen peroxide or aluminium powder.
Described suds-stabilizing agent comprises fatty alcohol sulfate.
Described subsidiary material refer to flyash, unslaked lime, gypsum, calcium carbonate, one or more in slag, metakaolin, hydroxyethyl ether cellulose, polypropylene fibre, wooden calcium, naphthalenesulfonate based water reducer, water.
A kind of preparation method of the foamed concrete with efficient sound absorption-heat insulation function, it is characterized in that, the method comprises the following steps: take by weight cement 100 weight parts, suds-stabilizing agent 0.01～0.1 weight part, subsidiary material 40～70 weight parts, water 60～70 weight parts, add mortar mixer, make even slurry through high-speed stirring, in slurry, add pore structure conditioning agent 10～20 weight parts, carrying out high-speed stirring is dispersed in cement slurry pore structure conditioning agent again, afterwards slurry is built in mould, through foaming, sclerosis, form removal after 24h, excision forming, reaching requirement of strength through maintenance can use.
The present invention is from sound-absorbing material ultimate principle, in foamed concrete preparation process, add pore structure conditioning agent, make it to form on the basis of even macroscopical bubble, in cement walls, form trickle, uniformly mutual communicating pores, obtain having the foamed concrete of trickle open pore, thereby make foamed concrete with reducing sound pollution and wall thermal insulating function, can be prepared into sheet material pattern and be applied to the inside and outside body of wall of buildings, in improving wall thermal insulating effect, annex sound-absorbing and noise-decreasing effect, reach energy-saving and noise-reducing effect.
Compared with prior art, key problem in technology of the present invention: add pore structure conditioning agent in foamed concrete preparation process, by adjusting slurry viscosity, make it in cement slurry, to form on the basis of a large amount of even macroscopical bubbles, in cement walls, form trickle, uniformly mutual communicating pores, make foamed concrete except having macroscopical homogeneous atmosphere bubble, in walls, there is trickle open pore, when sound wave incident, while penetrating into foamed concrete inside, the sound wave entering is by trickle aperture communication process, acoustic wave energy will be decayed rapidly, thereby effectively improve sound absorbing capabilities.Meanwhile, trickle hole is little on the heat retaining property impact of material.
The present invention can make block elements and be covered on surface of wall.Concrete construction method is identical with existing wall body heat insulating construction method.
Accompanying drawing explanation
Fig. 1 is the sound absorption coefficient figure of foamed concrete.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1:
1) starting material are prepared:
A. cement: ordinary Portland cement P042.5 cement-C
B. flyash: second class powered coal ash-FA;
C. conditioning agent: lime-Ca
C. admixture: wooden calcium-M
D. suds-stabilizing agent: fatty alcohol sulfate-P
E. hole wall pore former: hydroxyethyl ether cellulose-Q
F. fortifying fibre: regular foam concrete adopts polypropylene fibre-F
G. foaming agent: hydrogen peroxide-H
Water: W
It is as follows that above material is got mass ratio:
C∶FA∶Ca∶M∶P∶Q∶F∶H∶W
＝100∶50∶5∶0.3∶0.05∶0.02∶1∶15∶60
2) test specimen is built
At normal temperatures and pressures, above-mentioned material a～f is added water and makes slip, adopt cement mortar mixer uniform stirring 120s, add material g rapid stirring 20s, pour into the mold.
3) moulding process:
The foaming in mould of above-mentioned slip, moulding, sclerosis, be placed into the sclerosis 24h of concrete curing chamber, after form removal, makes through natural curing 27d, cut mechanically the foamed concrete that contains a large amount of pores.
Embodiment 2:
1) starting material are prepared:
E. cement: 42.5 grades-SC of aluminosulfate cement
F. adulterant: ground slag-SG;
C. conditioning agent: gypsum-G
G. admixture: naphthalenesulfonate based water reducer-N
H. suds-stabilizing agent: fatty alcohol sulfate-P
Hole wall pore former: hydroxyethyl ether cellulose-Q
F. fortifying fibre: regular foam concrete adopts polypropylene fibre-F.
G. foaming agent: hydrogen peroxide-H.
Water: W
It is as follows that above material is got mass ratio:
SC∶SG∶G∶N∶P∶Q∶F∶H∶W
＝100∶50∶7∶1∶0.05∶0.02∶1∶15∶70
2) test specimen is built
At normal temperatures and pressures, above-mentioned material a～f is added water and makes slip, adopt cement mortar mixer uniform stirring 120s, add material g rapid stirring 20s, pour into the mold.
3) moulding process:
The foaming in mould of above-mentioned slip, moulding, sclerosis, be placed into the sclerosis 24h of concrete curing chamber, after form removal, makes through natural curing 27d, cut mechanically the foamed concrete that contains a large amount of pores.
Embodiment 3
A kind of preparation method of the foamed concrete with efficient sound absorption-heat insulation function, the method comprises the following steps: take by weight silicate cement 100 weight parts, suds-stabilizing agent fatty alcohol sulfate 0.01 weight part, subsidiary material 40 weight parts (comprising flyash 40 weight parts), water 50 weight parts, add mortar mixer, make even slurry through high-speed stirring, in slurry, add pore structure conditioning agent hydrogen peroxide 10 weight parts, carrying out high-speed stirring is dispersed in cement slurry pore structure conditioning agent again, afterwards slurry is built in mould, through foaming, sclerosis, form removal after 24h, excision forming, reaching requirement of strength through maintenance can use.
Embodiment 4
A kind of preparation method of the foamed concrete with efficient sound absorption-heat insulation function, the method comprises the following steps: take by weight silicate cement 100 weight parts, suds-stabilizing agent fatty alcohol sulfate 0.1 weight part, subsidiary material 70 weight parts (comprise flyash 50, unslaked lime 2, gypsum 3, calcium carbonate 1, slag 5, metakaolin 5, hydroxyethyl ether cellulose 1, polypropylene fibre 1, wood calcium 1, naphthalenesulfonate based water reducer 1), water 70, add mortar mixer, make even slurry through high-speed stirring, in slurry, add pore structure conditioning agent aluminium powder 20 weight parts, carrying out high-speed stirring is dispersed in cement slurry pore structure conditioning agent again, afterwards slurry is built in mould, through foaming, sclerosis, form removal after 24h, excision forming, reaching requirement of strength through maintenance can use.
Claims (6)
1. a foamed concrete with efficient sound absorption heat insulation function, is characterized in that, this concrete comprises the component of following weight part content:
Cement, 100;
Pore structure conditioning agent, 10～20;
Suds-stabilizing agent, 0.01～0.1;
Subsidiary material, 40～70;
Water 60～70.
2. a kind of foamed concrete with efficient sound absorption heat insulation function according to claim 1, is characterized in that, described cement refers to silicate cement or aluminosulfate cement.
3. a kind of foamed concrete with efficient sound absorption heat insulation function according to claim 1, is characterized in that, described pore structure conditioning agent refers to hydrogen peroxide or aluminium powder.
4. a kind of foamed concrete with efficient sound absorption heat insulation function according to claim 1, is characterized in that, described suds-stabilizing agent comprises fatty alcohol sulfate.
5. a kind of foamed concrete with efficient sound absorption heat insulation function according to claim 1, it is characterized in that, described subsidiary material refer to flyash, unslaked lime, gypsum, calcium carbonate, one or more in slag, metakaolin, hydroxyethyl ether cellulose, polypropylene fibre, wooden calcium, naphthalenesulfonate based water reducer, water.
6. the preparation method of a foamed concrete with efficient sound absorption heat insulation function as claimed in claim 1, it is characterized in that, the method comprises the following steps: take by weight cement 100 weight parts, suds-stabilizing agent 0.01～0.1 weight part, subsidiary material 40～70 weight parts, water 60～70 weight parts, add mortar mixer, make even slurry through high-speed stirring, in slurry, add pore structure conditioning agent 10～20 weight parts, carrying out high-speed stirring is dispersed in cement slurry pore structure conditioning agent again, afterwards slurry is built in mould, through foaming, sclerosis, form removal after 24h, excision forming, reaching requirement of strength through maintenance can use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012491.1A CN103771803A (en) | 2014-01-10 | 2014-01-10 | Foam concrete with efficient sound-absorption and heat-preservation functions and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410012491.1A CN103771803A (en) | 2014-01-10 | 2014-01-10 | Foam concrete with efficient sound-absorption and heat-preservation functions and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103771803A true CN103771803A (en) | 2014-05-07 |
Family
ID=50564640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410012491.1A Pending CN103771803A (en) | 2014-01-10 | 2014-01-10 | Foam concrete with efficient sound-absorption and heat-preservation functions and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103771803A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310915A (en) * | 2014-10-10 | 2015-01-28 | 乔生艮 | High-strength thermal insulation foam concrete and preparation method thereof |
| CN104355656A (en) * | 2014-10-22 | 2015-02-18 | 贵州省栋梁建材有限责任公司 | Foam concrete and preparation method thereof |
| CN104478305A (en) * | 2014-11-10 | 2015-04-01 | 广西华欣建材有限公司 | Sound-insulation building block |
| CN104478314A (en) * | 2014-11-24 | 2015-04-01 | 柳州立洁科技有限公司 | Energy-saving heat-insulating building block with noise reducing function |
| CN105130336A (en) * | 2015-08-17 | 2015-12-09 | 陕西建科节能发展有限公司 | Preparation method of foam concrete |
| CN105238374A (en) * | 2014-06-18 | 2016-01-13 | 阳泉市高星建材外加剂有限公司 | Hole sealing material, and preparation method and using method thereof |
| CN105254335A (en) * | 2015-09-30 | 2016-01-20 | 广州大学 | Preparation technology of ionic conductive concrete |
| CN105669236A (en) * | 2014-11-19 | 2016-06-15 | 集佳绿色建筑科技有限公司 | Alkali-activated slag foamed concrete material and preparation method thereof |
| CN105669237A (en) * | 2014-11-19 | 2016-06-15 | 集佳绿色建筑科技有限公司 | High-sulphate-resistance cement foam concrete and preparation method thereof |
| CN105669126A (en) * | 2016-01-13 | 2016-06-15 | 王湖彬 | High-strength foam insulation concrete and production method thereof |
| CN105731912A (en) * | 2016-01-19 | 2016-07-06 | 龙岩市新罗区新耀建材有限公司 | Foamed concrete dry powder, and preparation and application methods thereof |
| CN106083148A (en) * | 2015-08-21 | 2016-11-09 | 广东省肇庆市质量计量监督检测所 | A kind of resisting breakage foam cement composite insulation boards and preparation method thereof |
| CN106630818A (en) * | 2016-11-07 | 2017-05-10 | 青岛理工大学 | Anti-explosion porous concrete with negative poisson's ratio effect and preparation method thereof |
| CN107265975A (en) * | 2017-06-22 | 2017-10-20 | 合肥易美特建材有限公司 | A kind of novel energy-saving construction material and preparation method thereof |
| CN108424077A (en) * | 2018-04-09 | 2018-08-21 | 福州市鸿生建材有限公司 | A kind of foam porous concrete of antiskid noise reduction and preparation method thereof |
| CN108892449A (en) * | 2018-07-16 | 2018-11-27 | 成都宏基建材股份有限公司 | A kind of recycled fine aggregate non-light tight concrete and preparation method thereof |
| CN108911600A (en) * | 2018-07-19 | 2018-11-30 | 成都宏基建材股份有限公司 | A kind of lightweight light transmission foam concrete and preparation method thereof |
| CN111960767A (en) * | 2020-08-22 | 2020-11-20 | 山东华森兴隆混凝土有限公司 | Low-noise concrete and preparation method thereof |
| CN113233841A (en) * | 2021-06-04 | 2021-08-10 | 中国铁路设计集团有限公司 | Open-cell foamed concrete with sound absorption and insulation functions and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102898064A (en) * | 2012-10-24 | 2013-01-30 | 同济大学 | Cement composite foaming agent as well as preparation method thereof and application thereof |
| CN102964142A (en) * | 2012-10-26 | 2013-03-13 | 安徽艾柯泡塑股份有限公司 | Foaming agent for lightweight grouting material |
| CN103030418A (en) * | 2011-10-08 | 2013-04-10 | 江苏金贸新材料科技有限公司 | Low-density composite foaming cement and preparation method thereof |
-
2014
- 2014-01-10 CN CN201410012491.1A patent/CN103771803A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103030418A (en) * | 2011-10-08 | 2013-04-10 | 江苏金贸新材料科技有限公司 | Low-density composite foaming cement and preparation method thereof |
| CN102898064A (en) * | 2012-10-24 | 2013-01-30 | 同济大学 | Cement composite foaming agent as well as preparation method thereof and application thereof |
| CN102964142A (en) * | 2012-10-26 | 2013-03-13 | 安徽艾柯泡塑股份有限公司 | Foaming agent for lightweight grouting material |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105238374A (en) * | 2014-06-18 | 2016-01-13 | 阳泉市高星建材外加剂有限公司 | Hole sealing material, and preparation method and using method thereof |
| CN104310915A (en) * | 2014-10-10 | 2015-01-28 | 乔生艮 | High-strength thermal insulation foam concrete and preparation method thereof |
| CN104310915B (en) * | 2014-10-10 | 2016-04-13 | 广东广泽实业有限公司 | A kind of high-strength heat preservation foamed concrete and preparation method thereof |
| CN104355656A (en) * | 2014-10-22 | 2015-02-18 | 贵州省栋梁建材有限责任公司 | Foam concrete and preparation method thereof |
| CN104478305A (en) * | 2014-11-10 | 2015-04-01 | 广西华欣建材有限公司 | Sound-insulation building block |
| CN105669236A (en) * | 2014-11-19 | 2016-06-15 | 集佳绿色建筑科技有限公司 | Alkali-activated slag foamed concrete material and preparation method thereof |
| CN105669237A (en) * | 2014-11-19 | 2016-06-15 | 集佳绿色建筑科技有限公司 | High-sulphate-resistance cement foam concrete and preparation method thereof |
| CN104478314A (en) * | 2014-11-24 | 2015-04-01 | 柳州立洁科技有限公司 | Energy-saving heat-insulating building block with noise reducing function |
| CN105130336A (en) * | 2015-08-17 | 2015-12-09 | 陕西建科节能发展有限公司 | Preparation method of foam concrete |
| CN106083148A (en) * | 2015-08-21 | 2016-11-09 | 广东省肇庆市质量计量监督检测所 | A kind of resisting breakage foam cement composite insulation boards and preparation method thereof |
| CN106083148B (en) * | 2015-08-21 | 2019-10-18 | 广东省肇庆市质量计量监督检测所 | A kind of resisting breakage foamed cement composite insulation boards and preparation method thereof |
| CN105254335A (en) * | 2015-09-30 | 2016-01-20 | 广州大学 | Preparation technology of ionic conductive concrete |
| CN105669126A (en) * | 2016-01-13 | 2016-06-15 | 王湖彬 | High-strength foam insulation concrete and production method thereof |
| CN105669126B (en) * | 2016-01-13 | 2017-09-12 | 佛山市顺德区伦教港兴建材有限公司 | A kind of high-strength foam thermal insulation concrete and preparation method thereof |
| CN105731912A (en) * | 2016-01-19 | 2016-07-06 | 龙岩市新罗区新耀建材有限公司 | Foamed concrete dry powder, and preparation and application methods thereof |
| CN106630818A (en) * | 2016-11-07 | 2017-05-10 | 青岛理工大学 | Anti-explosion porous concrete with negative poisson's ratio effect and preparation method thereof |
| CN106630818B (en) * | 2016-11-07 | 2019-04-09 | 青岛理工大学 | Explosion-proof celluar concrete with Negative poisson's ratio and preparation method thereof |
| CN107265975A (en) * | 2017-06-22 | 2017-10-20 | 合肥易美特建材有限公司 | A kind of novel energy-saving construction material and preparation method thereof |
| CN108424077A (en) * | 2018-04-09 | 2018-08-21 | 福州市鸿生建材有限公司 | A kind of foam porous concrete of antiskid noise reduction and preparation method thereof |
| CN108892449A (en) * | 2018-07-16 | 2018-11-27 | 成都宏基建材股份有限公司 | A kind of recycled fine aggregate non-light tight concrete and preparation method thereof |
| CN108911600A (en) * | 2018-07-19 | 2018-11-30 | 成都宏基建材股份有限公司 | A kind of lightweight light transmission foam concrete and preparation method thereof |
| CN111960767A (en) * | 2020-08-22 | 2020-11-20 | 山东华森兴隆混凝土有限公司 | Low-noise concrete and preparation method thereof |
| CN111960767B (en) * | 2020-08-22 | 2022-01-07 | 山东华森兴隆混凝土有限公司 | Low-noise concrete and preparation method thereof |
| CN113233841A (en) * | 2021-06-04 | 2021-08-10 | 中国铁路设计集团有限公司 | Open-cell foamed concrete with sound absorption and insulation functions and preparation method thereof |
| CN113233841B (en) * | 2021-06-04 | 2023-03-14 | 中国铁路设计集团有限公司 | Open-cell foamed concrete with sound absorption and insulation functions and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103771803A (en) | Foam concrete with efficient sound-absorption and heat-preservation functions and preparation method thereof | |
| CN105804315B (en) | Steel wire and fiber reinforcement integrated foam concrete lightweight wall plate and preparation method thereof | |
| CN102285778B (en) | Ultra-light cement-based composite foaming material and preparation method thereof | |
| CN102390968B (en) | Heat insulation fireproofing honeycomb cement board and preparation method thereof | |
| CN103183487B (en) | Preparation method of modified common silicate cement based foam insulating plate and special assistant | |
| CN102659354B (en) | A-grade non-ignitable heat insulating material and preparation method thereof | |
| CN104130006A (en) | Straw fiber reinforced foam concrete and preparation method thereof | |
| CN111807807A (en) | Non-autoclaved lightweight heat-insulating particle aerated concrete block and preparation method thereof | |
| CN107417202B (en) | Foam concrete for wall sandwich layer and preparation method and application thereof | |
| CN107265965A (en) | A kind of aerogel foam concrete segment and preparation method thereof | |
| CN103664122A (en) | Novel light-weight porous heat-insulating material and preparation method thereof | |
| CN104213649A (en) | Polyurethane composite insulation board and manufacturing method thereof | |
| CN102603352A (en) | Sound absorbing material quick in onsite construction and method for preparing sound absorbing material | |
| CN105541376A (en) | Light-weight high-strength foamed ceramic board material and preparation method thereof | |
| CN205804646U (en) | A kind of aerogel foam concrete heat-insulating PLASTIC LAMINATED of band decorative cover | |
| CN102745955B (en) | Preparation process for three-dimensional mesh cloth foaming cement composite material | |
| CN110803938A (en) | Aerogel foam concrete and preparation method and application thereof | |
| CN103803909B (en) | A kind of foam glass particle concrete | |
| CN102515671B (en) | Waterproof, fireproof and heat-insulating reinforced composite form and preparation method thereof | |
| CN104671822A (en) | Foaming magnesium cement EPS particle grade A noncombustible board and preparation method thereof | |
| CN205777030U (en) | A kind of aerogel foam concrete segment | |
| CN103524101B (en) | A kind of preparation method of inorganic foamed building thermal insulation material | |
| CN106431492A (en) | Cement foaming insulation plate and preparation method thereof | |
| CN104803704A (en) | Soundproof and heatproof light weight foam concrete | |
| CN108975810A (en) | A kind of fire-retardant foam concrete material 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |