CN106492394A - A kind of extinguishing chemical and preparation method thereof and application - Google Patents
A kind of extinguishing chemical and preparation method thereof and application Download PDFInfo
- Publication number
- CN106492394A CN106492394A CN201610897910.3A CN201610897910A CN106492394A CN 106492394 A CN106492394 A CN 106492394A CN 201610897910 A CN201610897910 A CN 201610897910A CN 106492394 A CN106492394 A CN 106492394A
- Authority
- CN
- China
- Prior art keywords
- extinguishing chemical
- water
- carbamide
- alkyl polyglucoside
- extinguishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0028—Liquid extinguishing substances
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0028—Liquid extinguishing substances
- A62D1/0035—Aqueous solutions
- A62D1/0042—"Wet" water, i.e. containing surfactant
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0071—Foams
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The present invention relates to fire-fighting fire extinguishing field, more particularly to a kind of extinguishing chemical and preparation method thereof and application.The extinguishing chemical is composed of the following components, and by weight percentage, carbamide 0.5% 15%, alkyl polyglucoside 85% 99.5% does not add water.The present invention while extinguishing chemical component is reduced improves the content of surfactant, can reach faster blow-off velocity, with more efficient, more environmentally friendly, more inexpensive combination property;And moisture is not added during synthesis, the weight of extinguishing chemical is reduced, and is made storage and is transported more convenient.
Description
Technical field
The present invention relates to fire-fighting fire extinguishing field, more particularly to a kind of extinguishing chemical and preparation method thereof and application.
Background technology
Water based fire suppressant refers to addition additive in fire water, changes the performance of water, so as to improve the extinguishing ability of water, subtracts
The consumption of few water, expands a series of extinguishing chemicals of the fire extinguishing scope of water.Water-based extinguishing agent includes that fortified water extinguishing chemical, moistening water go out
Fiery agent, antifreezing water extinguishing agent, viscous water extinguishing chemical, drag reduction above-water method agent.
Water based fire suppressant low production cost, easy to use, it is to apply extinguishing chemical species the most universal.In prior art most
Conventional water-based extinguishing agent is aqueous film-forming foam extinguishing agent, and the extinguishing chemical is that one kind is lived with hc-surfactant and fluorocarbon surface
Property agent for base material foam solution, water membrane can be formed on some hydro carbons surfaces, with spies such as efficient, environmental protection, long shelf-lifes
Point, but expensive;And due to fluorocarbon surfactant once and sea water mixing, the performance of fluorocarbon surfactant will become
Extremely unstable being obtained, extreme influence being produced to foaming properties and extinguishing property, so as to greatly limit the use of this kind of extinguishing chemical;And
And the extinguishing chemical containing fluorine activating agent is not allowed degradable, brings threat to environment.
Existing aqueouss extinguishing chemical is to add surfactant, fire retardant in water, subtract the synthesis water based fire suppressant such as fumicants, by
Many in constituent so that preparation technology is comparatively laborious, and have no idea to realize that the quick preparation of extinguishing chemical is used;And go out
Containing substantial amounts of water in fiery agent, weight and the memory space of extinguishing chemical is increased, need not add in building-up process of the present invention and appoint
What moisture, is effectively reduced the weight of extinguishing chemical, saves car, ship, the memory space of warship and cost of transportation.
Content of the invention
It is an object of the invention to provide a kind of extinguishing chemical and preparation method thereof and application, which is reducing extinguishing chemical group
While dividing, the content of surfactant is improve, faster blow-off velocity can be reached, with more efficient, more environmentally friendly, lower
The combination property of cost;And moisture is not added during synthesis, the weight of extinguishing chemical is reduced, and makes storage and transport
More convenient.
For achieving the above object, technical scheme is as follows.
The present invention relates to a kind of extinguishing chemical, the extinguishing chemical is composed of the following components, by weight percentage, carbamide 0.5%-
15%th, alkyl polyglucoside 85%-99.5%, does not add water.
The optimal technical scheme of the extinguishing chemical is that the extinguishing chemical is composed of the following components, by weight percentage, carbamide
10%-12%, alkyl polyglucoside 88%-90%, do not add water.
The invention further relates to a kind of extinguishing chemical, the extinguishing chemical is composed of the following components, by weight percentage, carbamide
0.5%-14%, alkyl polyglucoside 85%-99%, hexadecyltrimethylammonium chloride 0.1%-8%, do not add water.
The invention further relates to a kind of extinguishing chemical, the extinguishing chemical is composed of the following components, by weight percentage, carbamide
0.5%-14%, alkyl polyglucoside 85%-99%, sodium polyacrylate 0.1%-8%, do not add water.
The invention further relates to a kind of extinguishing chemical, the extinguishing chemical is composed of the following components, by weight percentage, carbamide
0.5%-14%, alkyl polyglucoside 85%-99%, sodium polyacrylate 0.1%-8%, hexadecyltrimethylammonium chloride 0.1%-
8%, do not add water.
The invention further relates to the preparation method of above-mentioned extinguishing chemical, is got the raw materials ready by formula proportion, and under agitation, will urine
Element is directly added in alkyl polyglucoside, without adding water, abundant moistening, mixing, dissolving after stop stirring obtaining this product or in carbamide
Add after being completely dissolved other materials stir dissolving after obtain this product.
The invention further relates to the application of above-mentioned extinguishing chemical, the extinguishing chemical can be used directly or be 1 by weight ratio with water:
30~150 ratio is used in mixed way.
The optimal technical scheme of above-mentioned application is that the water is one or more combination of salt water, fresh water, high hardness water.
The optimal technical scheme of above-mentioned application is, using operating pressure more than 3 atmospheric pressure compressor by extinguishing chemical
Spray to fiery face;Or control the proportioning of the extinguishing chemical and water with dosing pump, using operating pressure more than 3 atmospheric pressure compression
Device or fire-fighting foams pump, are sprayed to fiery face.
Alkyl polyglucoside is a kind of new and effective, nontoxic, biodegradable nonionic surfactant, and surface activity is very
Good, surface tension is low, foaming power is strong, foam stabilization, wettability are good, little to human body zest, the rapid biodegradation of energy, frequently as
Surfactant in extinguishing chemical is used.But due to alkyl polyglucoside viscosity very high, it is impossible to directly use in extinguishing chemical, need exist
Just there is after diluting in water certain mobility to be used in extinguishing chemical.And the present invention passes through its effective cooperation with carbamide so as to
Viscosity reduces, and is used directly for putting out a fire, and without the need for dilute with water.
Carbamide is expansion type flame retardant in the present invention, and with efficient, low cigarette, work in-process do not produce toxic gas;?
Coordinate dispersibility, heat stability and the fire resistance for effectively improving extinguishing chemical during use with alkyl polyglucoside.And the present invention
By the rational proportion of composition, can effectively extend extinguishing chemical in the fire extinguishing body surface time of staying, few consumption can be played, subtracted
The characteristics of few water stain pollution, prolongation fire resistanttime.
The present invention reaches the purpose of quick extinguishing using the synergism that steam asphyxia and physics are cooled down.Alkyl in the present invention
Glucosides has low surface tension, can sprawl one layer in flame surface, makes oxygen concentration be reduced to burning critical following, and will
Comburant is effectively isolated with air, plays the effect of fire smothering;And carbamide decomposes rapidly at high temperature, physics cooling is played
Effect;Under the collective effect of above two principle, blow-off velocity is effectively raised.
Burning is a kind of violent oxidation reaction that emits light and heat, and aqueouss extinguishing chemical is that the foaming of abutment surface activating agent intercepts combustion
The purpose that the oxygen in thing and air reacts and reaches fire extinguishing is burnt, so improving surface-active contents, increase blowing ratio is
Improve the unique channel of water based fire suppressant fire extinguishing effectiveness.The present invention is greatly improved containing for alkyl polyglucoside compared with prior art
Amount, so as to improve the content of effective active thing in extinguishing chemical, makes blow-off velocity faster;And constituent is few in the present invention,
So that preparation process is simple, it is possible to achieve the quick preparation of extinguishing chemical and use;And do not have during extinguishing chemical synthesizes
Moisture is added, product weight is alleviated, storage is made and is transported more convenient;This product can be used directly in use,
Can also use in the case of without water source, expand the use occasion of product, and save the time of fire extinguishing, for point
The scene of suing and labouring that second must strive is highly beneficial.
Specific embodiment
Embodiment 1
A kind of extinguishing chemical, by weight percentage, carbamide 11%, alkyl polyglucoside 89% do not add water.
Got the raw materials ready by above-mentioned formula proportion, in the presence of blender carbamide is added in alkyl polyglucoside, fill carbamide
Share in the benefit wet, mix, be dissolved in alkyl polyglucoside, stop stirring, obtain extinguishing chemical of the present invention.
During use, directly using above-mentioned extinguishing chemical, using the slush pump that operating pressure is 6 atmospheric pressure, sprayed to fire
Face, and according to GB GB15308-2006《Fire foam》Fire fighting test is carried out, its attack time is 6s.
Embodiment 2
A kind of extinguishing chemical, the extinguishing chemical are composed of the following components, by weight percentage, carbamide 4%, alkyl polyglucoside
88%, hexadecyltrimethylammonium chloride 8% is not aqueous.
Got the raw materials ready by above-mentioned formula proportion, in the presence of blender carbamide is added in alkyl polyglucoside, fill carbamide
Share in the benefit wet, mix, be dissolved in alkyl polyglucoside, add hexadecyltrimethylammonium chloride, stop stirring after fully dissolving, obtain
Arrive extinguishing chemical of the present invention.
During use, directly need not be added water using above-mentioned extinguishing chemical, using the slush pump that operating pressure is 5 atmospheric pressure, by which
Spray to fiery face, and according to GB GB15308-2006《Fire foam》Fire fighting test is carried out, its attack time is 4s.
Embodiment 3
A kind of extinguishing chemical, the extinguishing chemical are composed of the following components, by weight percentage, carbamide 0.5%, alkyl polyglucoside
99.4%, hexadecyltrimethylammonium chloride 0.5%.
Got the raw materials ready by above-mentioned formula proportion, in the presence of blender carbamide is added in alkyl polyglucoside, fill carbamide
Share in the benefit wet, mix, be dissolved in alkyl polyglucoside, add hexadecyltrimethylammonium chloride, stop stirring after fully dissolving, obtain
Arrive extinguishing chemical of the present invention.
During use, directly need not be added water using above-mentioned extinguishing chemical, using the slush pump that operating pressure is 5 atmospheric pressure, by which
Spray to fiery face, and according to GB GB15308-2006《Fire foam》Fire fighting test is carried out, its attack time is 4s.
Embodiment 4
A kind of extinguishing chemical, the extinguishing chemical are composed of the following components, by weight percentage, carbamide 1.9%, alkyl polyglucoside
90%, hexadecyltrimethylammonium chloride 0.1%, sodium polyacrylate 8%.
Got the raw materials ready by above-mentioned formula proportion, in the presence of blender carbamide is added in alkyl polyglucoside, fill carbamide
Share in the benefit wet, mix, be dissolved in alkyl polyglucoside, add hexadecyltrimethylammonium chloride and sodium polyacrylate, fully dissolve
Stop stirring afterwards, obtain extinguishing chemical of the present invention.
During use, directly need not be added water using above-mentioned extinguishing chemical, using the compressor that operating pressure is 3 atmospheric pressure, will
Which is sprayed to fiery face, and according to GB GB15308-2006《Fire foam》Fire fighting test is carried out, its attack time is 5s.
Embodiment 5
A kind of extinguishing chemical, the extinguishing chemical are composed of the following components, by weight percentage, 6.9% part of carbamide, alkyl polyglucoside
85%, hexadecyltrimethylammonium chloride 8%, sodium polyacrylate 0.1%.
Got the raw materials ready by above-mentioned formula proportion, in the presence of blender carbamide is added in alkyl polyglucoside, fill carbamide
Share in the benefit wet, mix, be dissolved in alkyl polyglucoside, add hexadecyltrimethylammonium chloride and sodium polyacrylate, fully dissolve
Stop stirring afterwards, obtain extinguishing chemical of the present invention.
During use, directly need not be added water using above-mentioned extinguishing chemical, using the slush pump that operating pressure is 5 atmospheric pressure, by which
Spray to fiery face, and according to GB GB15308-2006《Fire foam》Fire fighting test is carried out, its attack time is 3s.
Embodiment 6
A kind of extinguishing chemical, the extinguishing chemical are composed of the following components, by weight percentage, carbamide 14%, alkyl polyglucoside
85%, hexadecyltrimethylammonium chloride 0.5%, sodium polyacrylate 0.5%.
Got the raw materials ready by above-mentioned formula proportion, in the presence of blender carbamide is added in alkyl polyglucoside, fill carbamide
Share in the benefit wet, mix, be dissolved in alkyl polyglucoside, add hexadecyltrimethylammonium chloride and sodium polyacrylate, fully dissolve
Stop stirring afterwards, obtain extinguishing chemical of the present invention.
By extinguishing chemical obtained above and fresh water during use, according to 1: 50 proportioning of mass ratio, the use of operating pressure is 6 air
The compression pump of pressure, is sprayed to fiery face, and according to GB GB15308-2006《Fire foam》Fire fighting test is carried out, which goes out
The fiery time is 10S.
Embodiment 7
A kind of extinguishing chemical, the extinguishing chemical are composed of the following components, by weight percentage, carbamide 7%, alkyl polyglucoside
85%, sodium polyacrylate 8%.
Got the raw materials ready by above-mentioned formula proportion, in the presence of blender carbamide is added in alkyl polyglucoside, fill carbamide
Share in the benefit wet, mix, be dissolved in alkyl polyglucoside, add sodium polyacrylate, stop stirring after fully dissolving, obtain institute of the present invention
State extinguishing chemical.
By extinguishing chemical obtained above and fresh water during use, according to 1: 150 proportioning of mass ratio, big for 7 using operating pressure
The compression pump of air pressure, is sprayed to fiery face, and according to GB GB15308-2006《Fire foam》Fire fighting test is carried out, its
Attack time is 12S.
Embodiment 8
A kind of extinguishing chemical, the extinguishing chemical are composed of the following components, by weight percentage, carbamide 0.9%, alkyl polyglucoside
99%, sodium polyacrylate 0.1%.
Got the raw materials ready by above-mentioned formula proportion, in the presence of blender carbamide is added in alkyl polyglucoside, fill carbamide
Share in the benefit wet, mix, be dissolved in alkyl polyglucoside, add sodium polyacrylate, stop stirring after fully dissolving, obtain institute of the present invention
State extinguishing chemical.
By extinguishing chemical obtained above and fresh water during use, according to 1: 30 proportioning of mass ratio, the use of operating pressure is 5 air
The compression pump of pressure, is sprayed to fiery face, and according to GB GB15308-2006《Fire foam》Fire fighting test is carried out, which goes out
The fiery time is 8S.
Claims (9)
1. a kind of extinguishing chemical, it is characterised in that the extinguishing chemical is composed of the following components, by weight percentage, carbamide 0.5%-
15%th, alkyl polyglucoside 85%-99.5%, does not add water.
2. extinguishing chemical according to claim 1, it is characterised in that the extinguishing chemical is composed of the following components, by weight percentage
Meter, carbamide 10%-12%, alkyl polyglucoside 88%-90% do not add water.
3. a kind of extinguishing chemical, it is characterised in that the extinguishing chemical is composed of the following components, by weight percentage, carbamide 0.5%-
14%th, alkyl polyglucoside 85%-99%, hexadecyltrimethylammonium chloride 0.1%-8%, do not add water.
4. a kind of extinguishing chemical, it is characterised in that the extinguishing chemical is composed of the following components, by weight percentage, carbamide 0.5%-
14%th, alkyl polyglucoside 85%-99%, sodium polyacrylate 0.1%-8%, do not add water.
5. a kind of extinguishing chemical, it is characterised in that the extinguishing chemical is composed of the following components, by weight percentage, carbamide 0.5%-
14%th, alkyl polyglucoside 85%-99%, sodium polyacrylate 0.1%-8%, hexadecyltrimethylammonium chloride 0.1%-8%, are not added with
Water.
6. the preparation method of any one extinguishing chemical of Claims 1 to 5, it is characterised in that got the raw materials ready by formula proportion, stirred
Under the conditions of mixing, carbamide is directly added in alkyl polyglucoside, without adding water, abundant moistening, mixing, stops stirring after dissolving and obtain this
Product or add after carbamide is completely dissolved other materials stir dissolving after obtain this product.
7. the application of any one extinguishing chemical of Claims 1 to 5, it is characterised in that the extinguishing chemical can be used directly or and water
Ratio by weight ratio for 1: 30~150 is used in mixed way.
8. the application of extinguishing chemical according to claim 7, it is characterised in that the water be salt water, fresh water, the one of high hardness water
Plant or multiple combination.
9. the application of extinguishing chemical according to claim 7, it is characterised in that using operating pressure more than 3 atmospheric pressure pressure
Compression apparatus spray extinguishing chemical to fiery face;Or with the dosing pump control extinguishing chemical and the proportioning of water, it is more than 3 using operating pressure
The compressor of individual atmospheric pressure or fire-fighting foams pump, are sprayed to fiery face.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610897910.3A CN106492394B (en) | 2016-10-17 | 2016-10-17 | Fire extinguishing agent, preparation method and application thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610897910.3A CN106492394B (en) | 2016-10-17 | 2016-10-17 | Fire extinguishing agent, preparation method and application thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106492394A true CN106492394A (en) | 2017-03-15 |
CN106492394B CN106492394B (en) | 2020-02-14 |
Family
ID=58294967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610897910.3A Active CN106492394B (en) | 2016-10-17 | 2016-10-17 | Fire extinguishing agent, preparation method and application thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106492394B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108837368A (en) * | 2018-06-01 | 2018-11-20 | 潘洋 | A kind of preparation method and application of synthetic foam extinguishing chemical |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008031559A2 (en) * | 2006-09-14 | 2008-03-20 | Buma Advanced Technologies, S.L. | Flame retardant composition |
CN103520870A (en) * | 2013-10-17 | 2014-01-22 | 中国人民武装警察部队学院 | Multifunctional water-based extinguishing agent and preparation method thereof |
CN103961835A (en) * | 2014-05-22 | 2014-08-06 | 国家电网公司 | Environment-friendly fire extinguishing agent for forest fire |
CN104857662A (en) * | 2015-05-26 | 2015-08-26 | 厦门安港消防科技有限公司 | Foam extinguishing agent |
CN105363164A (en) * | 2015-11-24 | 2016-03-02 | 中国民用航空飞行学院 | Hazardous chemical substance fire-fighting foam fire extinguishing agent formula and preparation method of hazardous chemical substance fire-fighting foam fire extinguishing agent |
-
2016
- 2016-10-17 CN CN201610897910.3A patent/CN106492394B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008031559A2 (en) * | 2006-09-14 | 2008-03-20 | Buma Advanced Technologies, S.L. | Flame retardant composition |
CN103520870A (en) * | 2013-10-17 | 2014-01-22 | 中国人民武装警察部队学院 | Multifunctional water-based extinguishing agent and preparation method thereof |
CN103961835A (en) * | 2014-05-22 | 2014-08-06 | 国家电网公司 | Environment-friendly fire extinguishing agent for forest fire |
CN104857662A (en) * | 2015-05-26 | 2015-08-26 | 厦门安港消防科技有限公司 | Foam extinguishing agent |
CN105363164A (en) * | 2015-11-24 | 2016-03-02 | 中国民用航空飞行学院 | Hazardous chemical substance fire-fighting foam fire extinguishing agent formula and preparation method of hazardous chemical substance fire-fighting foam fire extinguishing agent |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108837368A (en) * | 2018-06-01 | 2018-11-20 | 潘洋 | A kind of preparation method and application of synthetic foam extinguishing chemical |
Also Published As
Publication number | Publication date |
---|---|
CN106492394B (en) | 2020-02-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107812340A (en) | A kind of anti-resume combustion environment-friendly type water-based extinguishing agent | |
CN105396254A (en) | Fluorine-containing complex function extinguishing material | |
CN101559270B (en) | Environment-friendly water-based extinguishing agent | |
CN105688360A (en) | Class-A fire extinguishing agent | |
CN109899104A (en) | A kind of economic and environment-friendly type gel foam for preventing and treating spontaneous combustionof coal | |
CN103691091B (en) | Sea water resistance high-expansion foam extinguishing agent | |
CN106377863A (en) | Water-based extinguishing agent and preparing method | |
JP2005536246A (en) | Flame retardant and method for producing the same | |
CN110193163B (en) | Water-based extinguishing agent with adjustable proportion and preparation method thereof | |
CN105641846A (en) | Fire extinguishing agent for fire protection engineering | |
CN104906742A (en) | Foam extinguishing agent | |
CN111450463B (en) | Water-based extinguishing agent and preparation method thereof | |
KR20120054245A (en) | Fire extinguishing | |
CN104826263A (en) | Carbon-free gas hydrate fire extinguishing agent and preparation method thereof | |
CN105999607B (en) | A kind of dedicated extinguishing chemical of edible oil and preparation method thereof | |
CN106492393A (en) | A kind of extinguishing chemical and preparation method thereof and application | |
CN107684682A (en) | A kind of extinguishing chemical for fire extinguisher | |
CN106492394A (en) | A kind of extinguishing chemical and preparation method thereof and application | |
CN111617428B (en) | Chlorine-free aqueous film-forming foam extinguishing agent and preparation method thereof | |
CN110124241A (en) | A kind of water-based extinguishing agent | |
CN104888397A (en) | Fine water mist additive and preparation method and application thereof | |
CN104841084A (en) | Low-carbon mixed gas hydrate extinguishing agent and preparation method thereof | |
CN107376181A (en) | Suitable for 20 DEG C ~ 55 DEG C water-based extinguishing agents and preparation method thereof | |
CN104922848B (en) | A kind of compound additive for fine mist fire-fighting and preparation method thereof and using method | |
CN106377864A (en) | Expanded perlite dry powder extinguishing agent |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |