CN1597879A - Synergistic mixed light hydrocarbon industrial gas - Google Patents
Synergistic mixed light hydrocarbon industrial gas Download PDFInfo
- Publication number
- CN1597879A CN1597879A CN 03156905 CN03156905A CN1597879A CN 1597879 A CN1597879 A CN 1597879A CN 03156905 CN03156905 CN 03156905 CN 03156905 A CN03156905 A CN 03156905A CN 1597879 A CN1597879 A CN 1597879A
- Authority
- CN
- China
- Prior art keywords
- gas
- tertiary butyl
- mixed light
- synergistic
- light hydrocarbon
- 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
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 16
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 13
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 13
- 230000002195 synergetic effect Effects 0.000 title claims abstract description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229940120693 copper naphthenate Drugs 0.000 claims abstract description 10
- SEVNKWFHTNVOLD-UHFFFAOYSA-L copper;3-(4-ethylcyclohexyl)propanoate;3-(3-ethylcyclopentyl)propanoate Chemical compound [Cu+2].CCC1CCC(CCC([O-])=O)C1.CCC1CCC(CCC([O-])=O)CC1 SEVNKWFHTNVOLD-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims abstract description 10
- 239000002383 tung oil Substances 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 15
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 9
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 9
- 239000002737 fuel gas Substances 0.000 claims description 9
- 229910001689 halotrichite Inorganic materials 0.000 claims description 9
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- 239000011734 sodium Substances 0.000 claims description 9
- -1 alkane alkene Chemical class 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 abstract description 15
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 abstract description 15
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 abstract description 3
- 150000001336 alkenes Chemical class 0.000 abstract description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 abstract 1
- KQSJSRIUULBTSE-UHFFFAOYSA-M sodium;3-(3-ethylcyclopentyl)propanoate Chemical compound [Na+].CCC1CCC(CCC([O-])=O)C1 KQSJSRIUULBTSE-UHFFFAOYSA-M 0.000 abstract 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 abstract 1
- 239000000567 combustion gas Substances 0.000 description 14
- 239000000843 powder Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000003915 liquefied petroleum gas Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000012747 synergistic agent Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000011344 liquid material Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000005997 Calcium carbide Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Liquid Carbonaceous Fuels (AREA)
Abstract
A synergistic mixed light hydrocarbon industrial gas is prepared from multifunctional synergist and alkane-olefin through mixing in 1-3 ‰. The alkane and olefin are mixed by light hydrocarbon gas and heavy hydrocarbon gas according to the proportion of 1: 0-0.2. The multifunctional synergist is prepared from 120# solvent oil, ethanol, methyl tert-butyl ether, tung oil, tert-butyl metallocene, sodium naphthenate, copper naphthenate and potassium hydroxide according to a certain proportion. The invention has the advantages of low energy consumption, little pollution, low cost and safety, the flame temperature is higher than acetylene, the industrial gas requirement can be completely met, the invention is suitable for operation in alpine regions and ships, and the gas can be saved by more than 30%.
Description
Technical field
The present invention relates to the industrial combustion gas technical field, particularly a kind of Synergistic mixed light-hydrocarbon industril fuel gas.
Background technology
People generally adopt the acetylene combustion gas to weld, cut for these years, domestic up to now have at least 85% user still continuing to use acetylene, and acetylene energy consumption height, pollution is big, dangerous, price is expensive, produce one ton of calcium carbide and need power consumption 3600 degree and 1 ton of coke, and produce 3.3 tons of pollutions, discharge obnoxious flavoures such as sulfide and phosphide simultaneously.The cost of 1 bottle of 5 kilograms of acetylene is 55 yuan, and cost is very high.And now with the liquefied petroleum gas (LPG) industrial combustion gas when envrionment temperature be lower than-(15-20) ℃ and gas consumption when big, supply falls short of demand for steam output, and be heavier than air, when using on the naval vessel, gas leakage is easily sunk to naval vessel bilge portion and is difficult for discharging, and deflagration accident having easily takes place.As far back as the seventies, developed countries just begins to come replaced acetylene with new and effective alkane combustion gas.Recently domestic some unit also attempts to make alkane, alkene welding and cutting fuel gas with water-soluble additive, but poor performance: the one, long warm up time to the cutting of metal; The 2nd, not up to standard to the welding performance of ferrous metal, mechanical strength is not enough, and oxidation is serious, and the user is difficult to accept.
Summary of the invention
The object of the present invention is to provide that a kind of energy consumption is low, pollution is little, price is low, the welding performance is good, to cutting short, non-oxidizing a kind of Synergistic mixed light-hydrocarbon industril fuel gas warm up time of metal.
The objective of the invention is to be achieved through the following technical solutions; A kind of Synergistic mixed light-hydrocarbon work combustion gas is mixed with the weight proportion of alkane alkene by 1-3 ‰ mutually by multifunctional synergist.Alkane alkene by lighter hydrocarbons gas and heavy hydrocarbon gas by 1: proportioning (0-0.2) mixes.Multifunctional synergist is formulated by a certain percentage by powders such as liquid material such as 120# solvent oil, ethanol, methyl tertiary butyl ether, tung oil and tertiary butyl halotrichite, sodium napthionate, copper naphthenate, potassium hydroxide.The weight percent of each composition is: 120# solvent oil 40-60%, ethanol 15-30%, methyl tertiary butyl ether 14-20%, tung oil 10-14%, tertiary butyl halotrichite 2-5%, sodium napthionate 2.5-5%, copper naphthenate 1-3.5%, potassium hydroxide 0.5-1%.The 120# solvent oil has dissolving powder and combustion aid function in the prescription; Ethanol has dissolving powder and smoke elimination function; Methyl tertiary butyl ether and tertiary butyl halotrichite have makes each organic composition fusedly be in the same place, not repel mutually and do not produce precipitation and heat function, and methyl tertiary butyl ether also has explosion prevention function in addition; Tung oil has the calorific value of increasing function; Sodium napthionate and copper naphthenate have catalysis and heat function; Close function during potassium hydroxide has, make the combustion gas acid base equilibrium, also have the function of heating simultaneously.
The present invention is widely used in industrial combustion gas, automobile fuel gas, Industrial Stoves.
The present invention compared with prior art has following advantage:
1, this industrial combustion gas is owing to adopt lighter hydrocarbons gas as basic section gas, and utilize the energetic synergistic agent, and both improved the volatility of combustion gas, improved flame temperature again, therefore satisfied the service requirements of industrial combustion gas under the various environment (comprising extremely frigid zones), can under-45 ℃ of low temperature environment in severe winter, use.
2, because this industrial combustion gas lighter than air leaks gas and can not sink to naval vessel bilge portion, overcome the existing problem that detonation easily takes place with liquefied petroleum gas (LPG) operation on the naval vessel.
3, energy consumption is low, and the 5 kilograms of one bottle of acetylene usefulness in 3 kilograms of this industrial combustion gas tops are saved combustion gas more than 30%, and conserve oxygen is more than 20%.
4, cost is low, and its cost only is 1/4 of an acetylene, and welding comprehensively consumes pneumatolytic, and this reduces more than 50% than acetylene.
5, because catalysis, the combustion-supporting effect of synergistic agent, combustion gas is fully burnt and reduce pollution, help environmental protection.
6, safe in utilization, the limits of explosion scope only is 1/8 of an acetylene, and pressure only is 1/4 of acetylene, not tempering.
7, cutting is shorter than acetylene warm up time, and cutting section is bright and clean, and the molten solder performance of ferrous metal is better than similar cutting-welding gas.
Embodiment
A kind of Synergistic mixed light-hydrocarbon industril fuel gas is mixed with the weight proportion of alkane alkene by 1-3 ‰ mutually by multifunctional synergist.Alkane alkene by lighter hydrocarbons gas and heavy hydrocarbon gas by 1: proportioning (0-0.2) mixes.Multifunctional synergist is formulated by a certain percentage by powders such as liquid material such as 120# solvent oil, ethanol, methyl tertiary butyl ether, tung oil and tertiary butyl halotrichite, sodium napthionate, copper naphthenate, potassium hydroxide.During enforcement, at first liquid material such as 120# solvent oil, ethanol, methyl tertiary butyl ether, tung oil are poured into by a certain percentage or pumped in the stirring tank and stir with explosion-proof pump, pour into powders such as tertiary butyl halotrichite, sodium napthionate, copper naphthenate, potassium hydroxide in the stirring tank by a certain percentage again and stir about half an hour quiet again putting 24 hours.By the valve on the stirring tank sidewall limpid solution is put into packing galvanized sheet iron bucket then, just make multifunctional synergist.Again with heavy hydrocarbon gas and lighter hydrocarbons gas in (0-0.2): 1 ratio is filled in industrial gas cylinder or the gas-holder successively with pump.At last the weight proportion of multifunctional synergist by 1-3 ‰ is filled in the industrial gas cylinder with pitcher pump, or is filled into volume pump and promptly makes Synergistic mixed light-hydrocarbon industril fuel gas in the gas-holder.
Embodiment 1 (use winter)
Multifunctional synergistic agent prescription (weight percent) is: 120# solvent oil 40%, ethanol 20%, methyl tertiary butyl ether 18%, tung oil 12%, tertiary butyl halotrichite 4%, sodium napthionate 4.5%, copper naphthenate 1%, potassium hydroxide 0.5%.
Embodiment 2 (use summer)
Multifunctional synergistic agent prescription (weight percent) is: 120# solvent oil 50%, ethanol 15%, methyl tertiary butyl ether 15%, tung oil 10%, tertiary butyl halotrichite 2.5%, sodium napthionate 3%, copper naphthenate 3.5%, potassium hydroxide 1%.
Above-mentioned prescription is in Central Plains natural gas utilisation technology scientific research institution evidence: weld, cut flame temperature and reached 3410 ℃, tungsten electrode can fuse; Perforation and opening warm up time shorten about 50% than acetylene, and cutting speed in feet per minute is than acetylene improve about 15%, and normalizing speed is than acetylene fast 25%.
Claims (2)
1, a kind of Synergistic mixed light-hydrocarbon industril fuel gas is characterized in that: it is mixed with the weight proportion of alkane alkene by 1-3 ‰ mutually by multifunctional synergist, alkane alkene by lighter hydrocarbons gas and heavy hydrocarbon gas by 1: proportioning (0-0.2) mixes.
2, a kind of Synergistic mixed light-hydrocarbon industril fuel gas according to claim 1, it is characterized in that: multifunctional synergist is formulated by a certain percentage by 120# solvent oil, ethanol, methyl tertiary butyl ether, tung oil, tertiary butyl halotrichite, sodium napthionate, copper naphthenate, potassium hydroxide, and the weight percent of each composition is: 120# solvent oil 40-60%, ethanol 15-30%, methyl tertiary butyl ether 14-20%, tung oil 10-14%, tertiary butyl halotrichite 2-5%, sodium napthionate 2.5-5%, copper naphthenate 1-3.5%, potassium hydroxide 0.5-1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03156905 CN1280383C (en) | 2003-09-15 | 2003-09-15 | Synergistic mixed light hydrocarbon industrial gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03156905 CN1280383C (en) | 2003-09-15 | 2003-09-15 | Synergistic mixed light hydrocarbon industrial gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1597879A true CN1597879A (en) | 2005-03-23 |
| CN1280383C CN1280383C (en) | 2006-10-18 |
Family
ID=34660130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03156905 Expired - Fee Related CN1280383C (en) | 2003-09-15 | 2003-09-15 | Synergistic mixed light hydrocarbon industrial gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1280383C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618340A (en) * | 2012-04-11 | 2012-08-01 | 刘越 | Efficient cutting gas used for continuous casting and based on coke oven gas |
| CN103614176A (en) * | 2013-12-16 | 2014-03-05 | 德阳恒博秸油科技有限公司 | Synergist of light alkane and preparation method thereof |
| CN103710062A (en) * | 2014-01-02 | 2014-04-09 | 北京大通鸿业科技发展有限公司 | Efficient natural gas |
| CN106520238A (en) * | 2016-12-02 | 2017-03-22 | 广州阿多斯化工科技有限公司 | Fuel gas/fuel oil synergist for industrial kiln stove and boiler and preparation method and application of fuel gas/fuel oil synergist |
-
2003
- 2003-09-15 CN CN 03156905 patent/CN1280383C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618340A (en) * | 2012-04-11 | 2012-08-01 | 刘越 | Efficient cutting gas used for continuous casting and based on coke oven gas |
| CN102618340B (en) * | 2012-04-11 | 2014-04-16 | 刘越 | Efficient cutting gas used for continuous casting and based on coke oven gas |
| CN103614176A (en) * | 2013-12-16 | 2014-03-05 | 德阳恒博秸油科技有限公司 | Synergist of light alkane and preparation method thereof |
| CN103710062A (en) * | 2014-01-02 | 2014-04-09 | 北京大通鸿业科技发展有限公司 | Efficient natural gas |
| CN103710062B (en) * | 2014-01-02 | 2015-02-04 | 北京大通鸿业科技发展有限公司 | Efficient natural gas |
| CN106520238A (en) * | 2016-12-02 | 2017-03-22 | 广州阿多斯化工科技有限公司 | Fuel gas/fuel oil synergist for industrial kiln stove and boiler and preparation method and application of fuel gas/fuel oil synergist |
| CN106520238B (en) * | 2016-12-02 | 2017-09-15 | 广州阿多斯化工科技有限公司 | A kind of Industrial Stoves and boiler combustion gas/synergist for fuel oil and preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1280383C (en) | 2006-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102492504B (en) | Combustion synergist for industrial fuel gas | |
| CN101139535B (en) | Environment-protection energy-saving gas for welding and cutting | |
| CN1280383C (en) | Synergistic mixed light hydrocarbon industrial gas | |
| CN103710058A (en) | Methanol gasoline additive and methanol gasoline containing same | |
| CN102634393A (en) | Efficiency energy-saving additive for liquefied petroleum cutting gas | |
| CN102373101B (en) | High-cleaning aged fuel | |
| CN1079984A (en) | Complex intensifying hydro carbons and its production and use | |
| CN103820681A (en) | Explosion suppression material | |
| CN106244270A (en) | A kind of natural gas for cutting metal | |
| CN101941110A (en) | Process method for cutting metals by using flames of oxygen biodiesel oil and diesel oil blended fuel | |
| CN101144043A (en) | Environmental protection high-energy mixed light hydrocarbon industrial gas and producing method thereof | |
| CN205316032U (en) | Tombarthite CNG metal surely welds gas high pressure and fills bottled putting | |
| CN101089152B (en) | Industrial fuel gas for metal welding and cutting in high efficiency and low consumption | |
| CN103146442B (en) | M15 automotive plateau type clean methanol gasoline and production method thereof | |
| CN1329132A (en) | High energy liquid fuel | |
| CN101643678A (en) | Industrial gas synergist | |
| CN101092580A (en) | Environmental protection typed high-energy liquid fuel in alcohol group | |
| CN104877722A (en) | Natural gas metal cutting gas | |
| CN206527414U (en) | Reclaim the BOG making bottled metals of high pressure and cut weldering gas equipment | |
| CN1245487C (en) | Enviroment protection energy-saving building hydrocarbon gas fuel | |
| CN103160341B (en) | M30 car plateau type cleaning methanol gasoline and manufacture method thereof | |
| CN103952189A (en) | Methanol gasoline for vehicles and preparation method thereof | |
| CN1206329C (en) | Metal welding and cutting ether-hydrocarbon gas | |
| CN101890552A (en) | Process method for cutting metal by using oxygen-methanol gasoline flame | |
| CN1057110C (en) | Process for preparing metal material welding cutting gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING HUASHIDAI CHAONENG SCIENCE CO., LTD., EPO Free format text: FORMER OWNER: LI YUEHONG Effective date: 20080125 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080125 Address after: No. 19, ancient West Street, Shijingshan District, Beijing, China Patentee after: Beijing huashidai super energy technology limited liability company Address before: No. 947 box 2-251, Beijing Patentee before: Li Yuehong |
|
| DD01 | Delivery of document by public notice |
Addressee: Beijing huashidai super energy technology limited liability company Document name: Notification to Pay the Fees Addressee: Beijing huashidai super energy technology limited liability company Document name: Notification that Application Deemed not to be Proposed |
|
| DD01 | Delivery of document by public notice |
Addressee: Beijing huashidai super energy technology limited liability company Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing huashidai super energy technology limited liability company Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061018 Termination date: 20190915 |