CN109589535A - A kind of high fire-retardance extinguishing chemical - Google Patents
A kind of high fire-retardance extinguishing chemical Download PDFInfo
- Publication number
- CN109589535A CN109589535A CN201710914308.0A CN201710914308A CN109589535A CN 109589535 A CN109589535 A CN 109589535A CN 201710914308 A CN201710914308 A CN 201710914308A CN 109589535 A CN109589535 A CN 109589535A
- Authority
- CN
- China
- Prior art keywords
- parts
- retardance
- extinguishing chemical
- fire
- high fire
- 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
- 239000000126 substance Substances 0.000 title claims abstract description 34
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000007787 solid Substances 0.000 claims abstract description 19
- 239000004114 Ammonium polyphosphate Substances 0.000 claims abstract description 18
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims abstract description 18
- 229920001276 ammonium polyphosphate Polymers 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 229920002261 Corn starch Polymers 0.000 claims abstract description 17
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 claims abstract description 17
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 17
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 17
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000007864 aqueous solution Substances 0.000 claims abstract description 17
- 239000004202 carbamide Substances 0.000 claims abstract description 17
- 239000008120 corn starch Substances 0.000 claims abstract description 17
- 229940099112 cornstarch Drugs 0.000 claims abstract description 17
- 239000008101 lactose Substances 0.000 claims abstract description 17
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 17
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 17
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 17
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 16
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 235000019795 sodium metasilicate Nutrition 0.000 claims 1
- 239000003063 flame retardant Substances 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000004888 barrier function Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 11
- 239000000443 aerosol Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 235000012222 talc Nutrition 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- -1 atlapulgite Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
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
- A62D1/005—Dispersions; Emulsions
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing Compositions (AREA)
- Fireproofing Substances (AREA)
Abstract
The present invention relates to a kind of extinguishing chemicals, and in particular to a kind of high fire-retardance extinguishing chemical belongs to fire prevention fire extinguishing field.A kind of high fire-retardance extinguishing chemical, each component including following parts by weight: 20-30 parts of sodium silicate aqueous solution, 1-10 parts of protein liquid, 2-5 parts of triethanolamine, 5-20 parts of lactose, 1-10 parts of cornstarch, 2-8 parts of atlapulgite, 3-6 parts of solid ammonium polyphosphate, 10-15 parts of urea, 2-6 parts of ethylene glycol, 6-13 parts of talcum powder.The present invention can form air barrier on burning objects surface, play the role of fire-retardant and isolation air；It can reduce the temperature of burning objects, prevent the conduction of heat, can be effectively reduced the temperature of comburant, there is good flame-retarding characteristic.
Description
Technical field
The present invention relates to a kind of extinguishing chemicals, and in particular to a kind of high fire-retardance extinguishing chemical belongs to fire prevention fire extinguishing field.
Background technique
Currently used a few class extinguishing chemicals have water, fire foam, carbon dioxide extinguishing agent, dry powder fire extinguishing agent and comprehensive
Extinguishing chemical.Wherein fire foam and carbon dioxide gas fire-extinguishing agent inconvenience transport, mobility are very poor；Dry powder fire extinguishing agent goes out
Though fiery performance is good, dying fire cannot be put out, the scene of a fire flutterred is easy to and re-ignition；And although water is taken conveniently, mobility
By force, dying fire can be effectively put out, but live water source is limited, expense is excessive, and difficulty will occur for water intaking, often affects fire extinguishing adversely thus
Opportunity.Publication No. 102626546A, publication date are that the Chinese invention patent application on the 8th of August in 2012 discloses a kind of cold air
Aerosol extinguishing agent is prepared by following several raw materials: 50-80 parts of solid ammonium polyphosphate, 3-10 parts of talcum powder, titanium dioxide
8-22 parts of silicon, 5-15 parts of magnesium stearate, above-mentioned raw materials are uniformly mixed, and select air-flow crushing, are crushed average particle size and are reached
Less than 5 microns, cold aerosol fire extinguishing agent is made.The present invention also provides above-mentioned cold aerosol fire extinguishing agents in fire-fighting fire extinguishing
Using.Application of the cold aerosol fire extinguishing agent of the present invention in fire-fighting fire extinguishing, application method are as follows: put above-mentioned cold aerosol fire extinguishing agent
It sets in extinguishing chemical storage tank, extinguishing chemical storage tank is discharged into after gas is connected to enabled instruction, cold aerosol fire extinguishing agent is by gas
Disperse and formed to after releasing stress by spray head injection with gas mixing the gas-solid that can be floated in air of dissolved colloidal state
Mixture puts out a fire to fire source.Using above-mentioned extinguishing chemical, flame retardant effect is undesirable, therefore, needs to develop a kind of new high resistant
Fire extinguishing chemical.
Summary of the invention
The object of the present invention is to provide a kind of high fire-retardance extinguishing chemical, the present invention can burning objects surface formed air every
Absciss layer plays the role of fire-retardant and isolation air；It can reduce the temperature of burning objects, prevent the conduction of heat, it can be effective
The temperature of comburant is reduced, there is good flame-retarding characteristic.
The purpose of the present invention is what is be achieved through the following technical solutions, a kind of high fire-retardance extinguishing chemical, characterized in that the height
Fire retardant extinguisher includes each component of following parts by weight: 20-30 parts of sodium silicate aqueous solution, 1-10 parts of protein liquid, and triethanolamine
2-5 parts, 5-20 parts of lactose, 1-10 parts of cornstarch, 2-8 parts of atlapulgite, 3-6 parts of solid ammonium polyphosphate, urea 10-
15 parts, 2-6 parts of ethylene glycol, 6-13 parts of talcum powder.
Preferably, the high fire-retardance extinguishing chemical includes each component of following parts by weight: sodium silicate aqueous solution 21.2-28.8
Part, 1.6-9.4 parts of protein liquid, 2.4-4.6 parts of triethanolamine, 8-17 parts of lactose, 1.9-8.8 parts of cornstarch, activity is white
It is 2.6-7.4 parts native, 3.3-5.7 parts of solid ammonium polyphosphate, 10.6-14.4 parts of urea, 2.8-5.2 parts of ethylene glycol, talcum powder
6.9-11.5 part.
Preferably, the high fire-retardance extinguishing chemical includes each component of following parts by weight: sodium silicate aqueous solution 22.4-26.6
Part, 2.1-8.9 parts of protein liquid, 2.7-4.3 parts of triethanolamine, 10-15 parts of lactose, 3.2-7.5 parts of cornstarch, activity is white
It is 3.2-6.8 parts native, 3.8-5.2 parts of solid ammonium polyphosphate, 11.3-12.7 parts of urea, 3.4-4.6 parts of ethylene glycol, talcum powder
8.3-9.7 part.
Preferably, the high fire-retardance extinguishing chemical includes each component of following parts by weight: sodium silicate aqueous solution 22.8-26.2
Part, it is 2.9-8.0 parts of protein liquid, 3.1-3.9 parts of triethanolamine, 10.8-14.2 parts of lactose, 3.7-6.9 parts of cornstarch, living
3.9-6.1 parts of carclazyte of property, 4.4-4.8 parts of solid ammonium polyphosphate, 11.6-12.4 parts of urea, 3.8-4.2 parts of ethylene glycol, talcum
8.9-9.4 parts of powder.
Preferably, the high fire-retardance extinguishing chemical includes each component of following parts by weight: sodium silicate aqueous solution 23.6-25.4
Part, it is 4.2-7.0 parts of protein liquid, 3.4-3.6 parts of triethanolamine, 12.3-13.4 parts of lactose, 4.6-6.0 parts of cornstarch, living
4.4-5.7 parts of carclazyte of property, 4.5-4.7 parts of solid ammonium polyphosphate, 11.9-12.2 parts of urea, 3.9-4.1 parts of ethylene glycol, talcum
9.1-9.2 parts of powder.
Compared with prior art, the invention has the following advantages: the present invention is by sodium silicate aqueous solution, protein liquid,
Triethanolamine, lactose, cornstarch, atlapulgite, solid ammonium polyphosphate, urea, the compounding of ethylene glycol and talcum powder, combination
Fluid good flame retardation effect, the liquid extinguisher is nontoxic, and calamity easy post-processing is rinsed with water, and is easy to prepare and store；This
75-85 grams/cubic metre of confined space of test extinguishing concentration for inventing cold aerosol fire extinguishing agent obtained has application well
Prospect.
Specific embodiment
Embodiment 1
A kind of high fire-retardance extinguishing chemical, each component including following parts by weight: 20-30 parts of sodium silicate aqueous solution, protein liquid 1-10
Part, 2-5 parts of triethanolamine, 5-20 parts of lactose, 1-10 parts of cornstarch, 2-8 parts of atlapulgite, solid ammonium polyphosphate 3-6
Part, 10-15 parts of urea, 2-6 parts of ethylene glycol, 6-13 parts of talcum powder.
Embodiment 2
A kind of high fire-retardance extinguishing chemical, each component including following parts by weight: 21.2-28.8 parts of sodium silicate aqueous solution, protein liquid
1.6-9.4 parts, 2.4-4.6 parts of triethanolamine, 8-17 parts of lactose, 1.9-8.8 parts of cornstarch, atlapulgite 2.6-7.4
Part, 3.3-5.7 parts of solid ammonium polyphosphate, 10.6-14.4 parts of urea, 2.8-5.2 parts of ethylene glycol, talcum powder 6.9-11.5
Part.
Embodiment 3
A kind of high fire-retardance extinguishing chemical, each component including following parts by weight: 22.4-26.6 parts of sodium silicate aqueous solution, protein liquid
2.1-8.9 parts, 2.7-4.3 parts of triethanolamine, 10-15 parts of lactose, 3.2-7.5 parts of cornstarch, atlapulgite 3.2-6.8
Part, 3.8-5.2 parts of solid ammonium polyphosphate, 11.3-12.7 parts of urea, 3.4-4.6 parts of ethylene glycol, 8.3-9.7 parts of talcum powder.
Embodiment 4
A kind of high fire-retardance extinguishing chemical, each component including following parts by weight: 22.8-26.2 parts of sodium silicate aqueous solution, protein liquid
2.9-8.0 parts, 3.1-3.9 parts of triethanolamine, 10.8-14.2 parts of lactose, 3.7-6.9 parts of cornstarch, atlapulgite
3.9-6.1 parts, 4.4-4.8 parts of solid ammonium polyphosphate, 11.6-12.4 parts of urea, 3.8-4.2 parts of ethylene glycol, talcum powder 8.9-
9.4 part.
Embodiment 5
A kind of high fire-retardance extinguishing chemical, each component including following parts by weight: 23.6-25.4 parts of sodium silicate aqueous solution, protein liquid
4.2-7.0 parts, 3.4-3.6 parts of triethanolamine, 12.3-13.4 parts of lactose, 4.6-6.0 parts of cornstarch, atlapulgite
4.4-5.7 parts, 4.5-4.7 parts of solid ammonium polyphosphate, 11.9-12.2 parts of urea, 3.9-4.1 parts of ethylene glycol, talcum powder 9.1-
9.2 part.
Claims (5)
1. a kind of high fire-retardance extinguishing chemical, characterized in that the high fire-retardance extinguishing chemical includes each component of following parts by weight: sodium metasilicate
20-30 parts of aqueous solution, 1-10 parts of protein liquid, 2-5 parts of triethanolamine, 5-20 parts of lactose, 1-10 parts of cornstarch, activity is white
It is 2-8 parts native, 3-6 parts of solid ammonium polyphosphate, 10-15 parts of urea, 2-6 parts of ethylene glycol, 6-13 parts of talcum powder.
2. a kind of high fire-retardance extinguishing chemical according to claim 1, characterized in that the high fire-retardance extinguishing chemical includes following heavy
The each component of amount part: 21.2-28.8 parts of sodium silicate aqueous solution, 1.6-9.4 parts of protein liquid, 2.4-4.6 parts of triethanolamine, lactose
8-17 parts, 1.9-8.8 parts of cornstarch, 2.6-7.4 parts of atlapulgite, 3.3-5.7 parts of solid ammonium polyphosphate, urea
10.6-14.4 parts, 2.8-5.2 parts of ethylene glycol, 6.9-11.5 parts of talcum powder.
3. a kind of high fire-retardance extinguishing chemical according to claim 1, characterized in that the high fire-retardance extinguishing chemical includes following heavy
The each component of amount part: 22.4-26.6 parts of sodium silicate aqueous solution, 2.1-8.9 parts of protein liquid, 2.7-4.3 parts of triethanolamine, lactose
10-15 parts, 3.2-7.5 parts of cornstarch, 3.2-6.8 parts of atlapulgite, 3.8-5.2 parts of solid ammonium polyphosphate, urea
11.3-12.7 parts, 3.4-4.6 parts of ethylene glycol, 8.3-9.7 parts of talcum powder.
4. a kind of high fire-retardance extinguishing chemical according to claim 1, characterized in that the high fire-retardance extinguishing chemical includes following heavy
The each component of amount part: 22.8-26.2 parts of sodium silicate aqueous solution, 2.9-8.0 parts of protein liquid, 3.1-3.9 parts of triethanolamine, lactose
10.8-14.2 parts, 3.7-6.9 parts of cornstarch, 3.9-6.1 parts of atlapulgite, 4.4-4.8 parts of solid ammonium polyphosphate, urea
11.6-12.4 parts, 3.8-4.2 parts of ethylene glycol, 8.9-9.4 parts of talcum powder.
5. a kind of high fire-retardance extinguishing chemical according to claim 1, characterized in that the high fire-retardance extinguishing chemical includes following heavy
The each component of amount part: 23.6-25.4 parts of sodium silicate aqueous solution, 4.2-7.0 parts of protein liquid, 3.4-3.6 parts of triethanolamine, lactose
12.3-13.4 parts, 4.6-6.0 parts of cornstarch, 4.4-5.7 parts of atlapulgite, 4.5-4.7 parts of solid ammonium polyphosphate, urea
11.9-12.2 parts, 3.9-4.1 parts of ethylene glycol, 9.1-9.2 parts of talcum powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710914308.0A CN109589535A (en) | 2017-09-30 | 2017-09-30 | A kind of high fire-retardance extinguishing chemical |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710914308.0A CN109589535A (en) | 2017-09-30 | 2017-09-30 | A kind of high fire-retardance extinguishing chemical |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109589535A true CN109589535A (en) | 2019-04-09 |
Family
ID=65955359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710914308.0A Pending CN109589535A (en) | 2017-09-30 | 2017-09-30 | A kind of high fire-retardance extinguishing chemical |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109589535A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3108913A1 (en) * | 2020-04-06 | 2021-10-08 | Nexans | Cable comprising a fire-resistant and/or retardant composition |
-
2017
- 2017-09-30 CN CN201710914308.0A patent/CN109589535A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3108913A1 (en) * | 2020-04-06 | 2021-10-08 | Nexans | Cable comprising a fire-resistant and/or retardant composition |
| WO2021205104A1 (en) * | 2020-04-06 | 2021-10-14 | Nexans | Fire resistant and/or retardant composition |
| CN115335490A (en) * | 2020-04-06 | 2022-11-11 | 耐克森公司 | Fire-resistant and/or flame-retardant composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105396254A (en) | Fluorine-containing complex function extinguishing material | |
| CN110935128B (en) | Fireproof cooling hydrogel and preparation method thereof | |
| CN108905038B (en) | Micro-capsule fire extinguishing agent based on secondary shock wave throwing and preparation method thereof | |
| CN110193163B (en) | Water-based extinguishing agent with adjustable proportion and preparation method thereof | |
| CN102058951A (en) | Extinguishing agent | |
| CN105688360A (en) | Class-A fire extinguishing agent | |
| CN102319499A (en) | Built-up synergetic class-A/B water extinguishing agent series | |
| CN108421196A (en) | A kind of three-phase foam extinguishing agent and preparation method thereof | |
| WO2012034490A1 (en) | Fire extinguishing composition producing fire extinguishing substance by high temperature sublimation | |
| CN104629256A (en) | Flame-retardant smoke inhibitor for sprayed polyurethane foam as well as preparation method and application of flame-retardant smoke inhibitor | |
| CN102350032A (en) | Environmental-friendly water-based fire extinguishing agent and its preparation method | |
| CN109589535A (en) | A kind of high fire-retardance extinguishing chemical | |
| CN106267675A (en) | Aqua type extinguishing chemical and Portable extinguisher | |
| CN106964098A (en) | A kind of preparation method for compounding synergetic A, B, E class water-based extinguishing agent | |
| US20100000746A1 (en) | Process for producing extinguishing agent and throw-type fire extinguisher | |
| CA3204147A1 (en) | Aqueous fire extinguishing agent | |
| CN107684682A (en) | A kind of extinguishing chemical for fire extinguisher | |
| CN113679996A (en) | High-ammonium-polyphosphate-based forest dry powder extinguishing agent and preparation method thereof | |
| CN104841084A (en) | Low-carbon mixed gas hydrate extinguishing agent and preparation method thereof | |
| CN109589538A (en) | A kind of environmental protection extinguishing chemical | |
| CN109589539A (en) | A kind of low-density extinguishing agent | |
| CN109589540A (en) | A kind of extinguishing chemical with high adhesion property | |
| CN107226673A (en) | A kind of insulated fire sheet material and preparation method thereof | |
| JP2013075129A (en) | Manufacturing method of fire extinguishing agent | |
| CN108774388A (en) | Low temperature rapid aging fireproof blocking block and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190409 |