WO2005103210A1 - Melange odorisant pour combustible gazeux inodore - Google Patents
Melange odorisant pour combustible gazeux inodore Download PDFInfo
- Publication number
- WO2005103210A1 WO2005103210A1 PCT/FR2005/000823 FR2005000823W WO2005103210A1 WO 2005103210 A1 WO2005103210 A1 WO 2005103210A1 FR 2005000823 W FR2005000823 W FR 2005000823W WO 2005103210 A1 WO2005103210 A1 WO 2005103210A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alkyl
- radical
- compound
- carbon atoms
- composition according
- 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.)
- Ceased
Links
- SYHLCMUSYHFPPE-UHFFFAOYSA-O CCOP(C(C(C)(C)C)N(C(C)(C)C)[OH2+])(OCC)=O Chemical compound CCOP(C(C(C)(C)C)N(C(C)(C)C)[OH2+])(OCC)=O SYHLCMUSYHFPPE-UHFFFAOYSA-O 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/003—Additives for gaseous fuels
- C10L3/006—Additives for gaseous fuels detectable by the senses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Definitions
- the present invention relates to the field of odorants for gaseous fuels, in particular odorless, and more particularly to a composition comprising an alkyl sulfide and an alkyl acrylate for the detection of gas leaks and the prevention of the risks of resulting explosion.
- City gases and coke oven gases that were obtained by thermal processes have long been used in the past as gaseous fuels for both public lighting and domestic purposes. These gases contained highly odoriferous components, and therefore had a strong, clean odor, so that a gas leak could easily be detected.
- the gaseous fuels used today are essentially odorless, either because of their origin or because of the purification treatment they received.
- LPG liquefied petroleum gas
- oxygen for example for welds
- the natural gas circulating in the pipelines is odorised by injection (in specialized stations) of appropriate additives called odorants.
- Natural gas is generally sent odorless to the consuming countries from the production sites, after an appropriate purification treatment, either by gas pipeline or (in a liquid state) in specialized vessels (LNG carriers).
- natural gas is thus received in a limited number of injection stations where the odorant is injected so that the natural gas that circulates both in the French pipeline network, and that stored in Underground tanks are odorised, allowing easy detection in the event of a leak, regardless of the portion of the network where it occurs.
- natural gas can be distributed on the territory by a network of gas pipelines in which it circulates without odorant, which is then odorized at the entrance of the cities where it is consumed, which requires a number even higher injection stations.
- the storage bins are most often maintained under nitrogen or natural gas in order to limit, at this stage, the risk of explosion.
- Alkyl sulfides are known as odorants, alone or in admixture. There may be mentioned, for example, diethylsulfide, dimethylsulfide, methylethylsulfide or tetrahydrothiophene which are widely used for their excellent properties, in particular, capable of triggering an alarming sensation in persons in the event of accidental leakage of the natural gas thus smelled, and initiate the necessary backup operations.
- these products generate a quantity of sulfur dioxide which, however small, becomes significant when an overall assessment is carried out at the level of a country or a region, especially at a rate of industrialization or high urbanization.
- Patent JP55-137190 also discloses an odorant mixture associating with ethyl acrylate a specific sulfur compound, in this case tert-butyl mercaptan (or TBM).
- the application WO 2004/024852 describes an odorant consisting of four components including an alkyl acrylate, an alkyl sulfide and an antioxidant stabilizing agent such as tert-butylhydroxy toluene, hydroquinone, etc.
- the object of the present invention is to propose a new odorant mixture, in particular overcoming the disadvantages of the odorizing mixtures of the prior art described above.
- the subject of the present invention is thus a composition that can be used especially as odorant of a gaseous fuel, more particularly natural gas, comprising: from 0.1 to 49.9% of an alkyl sulphide (I) of formula R ⁇ SR 2 wherein R 1 and R 2, identical or different, represent: - an alkyl radical containing from 1 to 4 carbon atoms; or R and R taken with the sulfur atom to which they are attached represent a saturated or unsaturated ring comprising from 3 to 5 carbon atoms, optionally substituted by a -C-alkyl or C ⁇ -C 4 alkenyl radical; from 50 to 99.8% of an alkyl (II) acrylate, the alkyl radical of which comprises from 1 to
- - RR 33 e and R 4 which may be identical or different, each represent a tertiary or secondary hydrocarbon radical comprising from 2 to 30 carbon atoms, preferably from 4 to 15, and optionally one or more heteroatoms selected from sulfur, phosphorus, nitrogen or oxygen; or - R 3 and R 4 taken with the nitrogen atom to which they are attached represent a cyclic hydrocarbon radical comprising from 4 to 10 carbon atoms, preferably from 4 to 6, said radical being optionally substituted.
- composition according to the invention gives the gaseous fuels, in particular natural gas after it has been injected into it, a high odor power, comparable to that obtained with the alkyl sulfide odorants of the prior art, allowing any person in the vicinity of a leak to recognize it, and to take appropriate safety measures.
- This strong odor power is obtained at the same time as a significant decrease in the amounts of SO 2 released into the ecosphere after combustion of the gas thus odorized.
- this composition because of the lack of reactivity between the compounds (I) and (II) can be implemented in the injection stations by means of a single storage tank, a single pump and 'a single injection head, which leads to greatly simplified logistics.
- this comprises from 5 to 14.95% of compound (I), from 85 to 94.95% of compound (II) and from 0.005 to 0.05% of compound (III).
- the acrylic acid ester (II) is especially chosen from methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, pentyl, acrylate and hexyl, heptyl, octyl and dodecyl.
- use is made of methyl acrylate or ethyl acrylate.
- a composition comprising tetrahydrothiophene and ethyl acrylate is used.
- composition according to the invention of the compound (III) has the effect of inhibiting the polymerization of acrylates which are very reactive monomers that can polymerize spontaneously.
- Such an uncontrolled polymerization is likely to put people in the vicinity of injection stations, such as residents or workers in charge of maintenance in danger, because of a risk of explosion.
- This polymerization occurring during storage including for example in the bins or storage tanks of the injection stations, can also lead to fouling or even a quick clogging of the pipes between the storage tank and the injection point.
- Such a phenomenon can lead to an uncontrolled decline in the concentration of odorant in natural gas, which increases the risk of undetected gas leakage.
- the compounds of formula (IV) are known per se, and their preparation is for example described in the "Synthetic Chemistry of Stable Nitroxides” by LB Volodarsky et al, CRC Press, 1993, ISBN 0-8493-4590-1 .
- the inhibitor of formula (IV) has the advantage, unlike other inhibitors such as free radical inhibitors belonging to the family of hydroquinones, not to require storage of the odorant mixture in air. Storage under air is indeed necessary for hydroquinone free radical inhibitors, because the active form of the inhibitor is a molecule comprising a radical which is formed as a result of a reaction with oxygen. Now it is very interesting, in the practice of the design of the injection stations, to be able to store the odorant mixture in the appropriate tank under pressure of natural gas.
- the inhibitor of formula (IV) also offers the advantage, for the same reason, of being able to be used in nitrogen storage tanks that are encountered in certain natural gas injection stations.
- the compound used as an inhibitor of formula (IV) is a compound derived from tetramethylpiperidine oxide (also known as TEMPO) of formula (IVa):
- R 5 is hydroxy, amino, R 6 COO-, R 6 CON- where R 6 is a C ⁇ -C alkyl radical. It is preferable to choose the compound of formula (III) from among the following compounds: - compound (A) called N- (tert-butyl) -N- (1- [ethoxy (ethyl) phosphino] propyl) nitroxide of formula:
- the present invention also relates to a process for odorizing an odorless gaseous fuel comprising the addition of an effective amount of the composition comprising an alkyl sulfide and an alkyl acrylate, as defined above.
- the amount of said composition should be determined by those skilled in the art through systematic tests, taking into account the particular characteristics of the gaseous fuel, and distribution networks. As a guide only, this effective amount may be between 1 and 500 mg / Nm 3 , preferably between 2 and 50 mg / Nm 3 .
- the gaseous fuels to which the process according to the invention applies include: natural gas, propane, butane, liquefied petroleum gas (or LPG), or even oxygen or hydrogen, such as that generated by fuel cells.
- Natural gas is a preferred gaseous fuel according to the present invention because of its very wide diffusion and the importance of the distribution networks, making it particularly desirable to reduce any danger arising from a risk of leakage.
- the composition that can be used as an odorant is added by injection into the specialized stations according to the usual techniques used in this field.
- the invention finally relates to a gaseous fuel, preferably a natural gas, comprising an amount of between 1 and 500 mg / Nm 3 , preferably between 2 and 50 mg / Nm 3 of the composition comprising an alkyl sulphide and an alkyl acrylate, as defined above.
- a gaseous fuel preferably a natural gas, comprising an amount of between 1 and 500 mg / Nm 3 , preferably between 2 and 50 mg / Nm 3 of the composition comprising an alkyl sulphide and an alkyl acrylate, as defined above.
- Example 1 Odorization of natural gas with tetrahydrothiophene 10 mg per Nm 3 of tetrahydrothiophene are injected into natural gas by means of a suitable laboratory device.
- the sulfur dioxide content formed, after combustion of the gas thus odorized, is equal to 7.3 mg / Nm 3 .
- EXAMPLE 2 The following composition is obtained by simply mixing the weight of the components indicated in the liquid state, corresponding to the percentage by weight also indicated: ethyl acrylate 879.9 g 87.99% Tetrahydrothiophene 120 g 12.00% Hydroxy TEMPO 0.1 g 0.01% Example 1 is then repeated, replacing the tetrahydrothiophene with the composition thus prepared. The gas thus odorized is subjected to an olfactory test, from which it emerges that the gas thus odorized has the same odor as the gas obtained in Example 1. The sulfur dioxide content formed after combustion of the gas thus odorized , is equal to 0.87 mg / Nm 3 .
- Example 3 Example 2 is repeated, preparing the following composition:
- Methyl Acrylate 899.8 g 89.98% Tetrahydrothiophene 100 g 10.00% Inhibitor (C) 0.2 0.02% The same results are obtained.
- Example 4 Example 2 is repeated, preparing the following composition:
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Polymerisation Methods In General (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
Claims
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL05751611T PL1758970T3 (pl) | 2004-04-08 | 2005-04-05 | Mieszanka zapachowa do bezwonnego paliwa gazowego |
| CN2005800188683A CN1965065B (zh) | 2004-04-08 | 2005-04-05 | 用于无味气体燃料的添味混合物 |
| CA2562002A CA2562002C (fr) | 2004-04-08 | 2005-04-05 | Melange odorisant pour combustible gazeux inodore |
| DK05751611.4T DK1758970T3 (da) | 2004-04-08 | 2005-04-05 | Røbeblanding til lugtfrit gasformigt brændstof |
| US11/547,832 US7829522B2 (en) | 2004-04-08 | 2005-04-05 | Odorizing mixture for an odorless gas fuel |
| AT05751611T ATE452955T1 (de) | 2004-04-08 | 2005-04-05 | Geruchsmischung für geruchloses brenngas |
| EP05751611A EP1758970B1 (fr) | 2004-04-08 | 2005-04-05 | Melange odorisant pour combustible gazeux inodore |
| DE602005018479T DE602005018479D1 (de) | 2004-04-08 | 2005-04-05 | Geruchsmischung für geruchloses brenngas |
| JP2007506804A JP2007532710A (ja) | 2004-04-08 | 2005-04-05 | 無臭ガス燃料のための臭気化混合物 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0403698A FR2868790B1 (fr) | 2004-04-08 | 2004-04-08 | Melange odorisant pour combustible gazeux inodore |
| FR0403698 | 2004-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005103210A1 true WO2005103210A1 (fr) | 2005-11-03 |
Family
ID=34946413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2005/000823 Ceased WO2005103210A1 (fr) | 2004-04-08 | 2005-04-05 | Melange odorisant pour combustible gazeux inodore |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US7829522B2 (fr) |
| EP (1) | EP1758970B1 (fr) |
| JP (1) | JP2007532710A (fr) |
| CN (1) | CN1965065B (fr) |
| AT (1) | ATE452955T1 (fr) |
| CA (1) | CA2562002C (fr) |
| CY (1) | CY1108967T1 (fr) |
| DE (1) | DE602005018479D1 (fr) |
| DK (1) | DK1758970T3 (fr) |
| ES (1) | ES2337703T3 (fr) |
| FR (1) | FR2868790B1 (fr) |
| PL (1) | PL1758970T3 (fr) |
| PT (1) | PT1758970E (fr) |
| RU (1) | RU2365616C2 (fr) |
| SI (1) | SI1758970T1 (fr) |
| WO (1) | WO2005103210A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2891841A1 (fr) * | 2005-10-11 | 2007-04-13 | Arkema Sa | Melange odorisant pour combustible gazeux inodore |
| FR2902798A1 (fr) * | 2006-06-26 | 2007-12-28 | Arkema France | Melange odorisant pour combustible gazeux inodore |
| WO2008034901A1 (fr) * | 2006-09-22 | 2008-03-27 | Symrise Gmbh & Co. Kg | Agent odorant pauvre en soufre à stabilité améliorée |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2374305C1 (ru) * | 2008-06-24 | 2009-11-27 | Открытое акционерное общество "Газпром" | Одорант для природного газа |
| US10344237B2 (en) | 2017-04-13 | 2019-07-09 | Welker, Inc. | System and method for odorizing natural gas |
| FR3065375B1 (fr) | 2017-04-25 | 2019-06-28 | Arkema France | Procede d'odorisation de fluide cryogenique |
| CN110192664A (zh) * | 2019-06-06 | 2019-09-03 | 河南农业大学 | 丙烯酸苄酯取代吡嗪氮氧化物在烟草制品加香中的应用、烟草增香添加剂、烟草制品 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55137190A (en) * | 1979-04-11 | 1980-10-25 | Tokyo Gas Co Ltd | Addition of odor to fuel gas |
| US4487613A (en) * | 1983-09-26 | 1984-12-11 | International Flavors & Fragrances Inc. | Odorization of combustible hydrocarbon gases |
| US5282957A (en) * | 1992-08-19 | 1994-02-01 | Betz Laboratories, Inc. | Methods for inhibiting polymerization of hydrocarbons utilizing a hydroxyalkylhydroxylamine |
| US5312459A (en) * | 1989-07-25 | 1994-05-17 | Sprugel Friedrich A | Additive for liquefied-gas fuels |
| WO2004024852A1 (fr) * | 2002-08-27 | 2004-03-25 | Symrise Gmbh & Co. Kg | Agents odorants a faible teneur en soufre destines a des gaz liquides |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS512324B2 (fr) * | 1972-05-12 | 1976-01-24 | ||
| US5877344A (en) * | 1997-06-13 | 1999-03-02 | Ciba Specialty Chemicals Corporation | Polymerization inhibition of acrylates using blends of nitroxides |
| DE19837066A1 (de) * | 1998-08-17 | 2000-02-24 | Haarmann & Reimer Gmbh | Odorierung von Gas |
| DE10359743A1 (de) * | 2003-12-19 | 2005-07-14 | Symrise Gmbh & Co. Kg | Odorierung von Brenngas mit schwefelarmen Odoriermitteln |
-
2004
- 2004-04-08 FR FR0403698A patent/FR2868790B1/fr not_active Expired - Fee Related
-
2005
- 2005-04-05 US US11/547,832 patent/US7829522B2/en active Active
- 2005-04-05 AT AT05751611T patent/ATE452955T1/de active
- 2005-04-05 WO PCT/FR2005/000823 patent/WO2005103210A1/fr not_active Ceased
- 2005-04-05 JP JP2007506804A patent/JP2007532710A/ja active Pending
- 2005-04-05 CN CN2005800188683A patent/CN1965065B/zh not_active Expired - Fee Related
- 2005-04-05 PT PT05751611T patent/PT1758970E/pt unknown
- 2005-04-05 ES ES05751611T patent/ES2337703T3/es not_active Expired - Lifetime
- 2005-04-05 RU RU2006139136/04A patent/RU2365616C2/ru active
- 2005-04-05 PL PL05751611T patent/PL1758970T3/pl unknown
- 2005-04-05 CA CA2562002A patent/CA2562002C/fr not_active Expired - Lifetime
- 2005-04-05 SI SI200530929T patent/SI1758970T1/sl unknown
- 2005-04-05 DE DE602005018479T patent/DE602005018479D1/de not_active Expired - Lifetime
- 2005-04-05 EP EP05751611A patent/EP1758970B1/fr not_active Expired - Lifetime
- 2005-04-05 DK DK05751611.4T patent/DK1758970T3/da active
-
2010
- 2010-03-23 CY CY20101100283T patent/CY1108967T1/el unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55137190A (en) * | 1979-04-11 | 1980-10-25 | Tokyo Gas Co Ltd | Addition of odor to fuel gas |
| US4487613A (en) * | 1983-09-26 | 1984-12-11 | International Flavors & Fragrances Inc. | Odorization of combustible hydrocarbon gases |
| US5312459A (en) * | 1989-07-25 | 1994-05-17 | Sprugel Friedrich A | Additive for liquefied-gas fuels |
| US5282957A (en) * | 1992-08-19 | 1994-02-01 | Betz Laboratories, Inc. | Methods for inhibiting polymerization of hydrocarbons utilizing a hydroxyalkylhydroxylamine |
| WO2004024852A1 (fr) * | 2002-08-27 | 2004-03-25 | Symrise Gmbh & Co. Kg | Agents odorants a faible teneur en soufre destines a des gaz liquides |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 005, no. 008 (C - 039) 11 April 1979 (1979-04-11) * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2891841A1 (fr) * | 2005-10-11 | 2007-04-13 | Arkema Sa | Melange odorisant pour combustible gazeux inodore |
| WO2007042729A1 (fr) * | 2005-10-11 | 2007-04-19 | Arkema France | Melange odorisant pour combustible gazeux inodore |
| FR2902798A1 (fr) * | 2006-06-26 | 2007-12-28 | Arkema France | Melange odorisant pour combustible gazeux inodore |
| WO2008001000A3 (fr) * | 2006-06-26 | 2008-06-19 | Arkema France | Melange odorisant pour combustible gazeux inodore |
| JP2009541570A (ja) * | 2006-06-26 | 2009-11-26 | アルケマ フランス | 無臭の可燃性ガスに臭いを加えるための混合物 |
| AU2007264760B2 (en) * | 2006-06-26 | 2010-11-11 | Arkema France | Mixture to add odour to an odourless combustible gas |
| KR101130599B1 (ko) * | 2006-06-26 | 2012-04-02 | 아르끄마 프랑스 | 무취 가연성 가스에 냄새를 부가하는 혼합물 |
| EA018470B1 (ru) * | 2006-06-26 | 2013-08-30 | Аркема Франс | Одоризационная композиция для газообразного топлива, не имеющего запаха, способ одоризации и газообразное топливо |
| CN104830390A (zh) * | 2006-06-26 | 2015-08-12 | 阿肯马法国公司 | 用于无味气体燃料的添味混合物 |
| CN104830390B (zh) * | 2006-06-26 | 2020-08-21 | 阿肯马法国公司 | 用于无味气体燃料的添味混合物 |
| WO2008034901A1 (fr) * | 2006-09-22 | 2008-03-27 | Symrise Gmbh & Co. Kg | Agent odorant pauvre en soufre à stabilité améliorée |
| EP2066766B1 (fr) | 2006-09-22 | 2015-07-01 | Symrise AG | Agent odorant pauvre en soufre à stabilité améliorée |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE452955T1 (de) | 2010-01-15 |
| CN1965065B (zh) | 2010-04-21 |
| CN1965065A (zh) | 2007-05-16 |
| PL1758970T3 (pl) | 2010-06-30 |
| ES2337703T3 (es) | 2010-04-28 |
| DE602005018479D1 (de) | 2010-02-04 |
| CY1108967T1 (el) | 2014-07-02 |
| FR2868790A1 (fr) | 2005-10-14 |
| CA2562002A1 (fr) | 2005-11-03 |
| US7829522B2 (en) | 2010-11-09 |
| RU2365616C2 (ru) | 2009-08-27 |
| FR2868790B1 (fr) | 2008-07-25 |
| DK1758970T3 (da) | 2010-04-19 |
| JP2007532710A (ja) | 2007-11-15 |
| CA2562002C (fr) | 2012-11-27 |
| US20070219113A1 (en) | 2007-09-20 |
| EP1758970B1 (fr) | 2009-12-23 |
| RU2006139136A (ru) | 2008-05-20 |
| SI1758970T1 (sl) | 2010-04-30 |
| EP1758970A1 (fr) | 2007-03-07 |
| PT1758970E (pt) | 2010-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2038382B1 (fr) | Melange odorisant pour combustible gazeux inodore | |
| EP1758970B1 (fr) | Melange odorisant pour combustible gazeux inodore | |
| EP1934314B1 (fr) | Melange odorisant pour combustible gazeux inodore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2005751611 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2562002 Country of ref document: CA |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 11547832 Country of ref document: US Ref document number: 2007219113 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2007506804 Country of ref document: JP |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2006139136 Country of ref document: RU |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 200580018868.3 Country of ref document: CN |
|
| WWP | Wipo information: published in national office |
Ref document number: 2005751611 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 11547832 Country of ref document: US |






