DE1692938A1 - Process for influencing the taste properties of tobacco smoke - Google Patents
Process for influencing the taste properties of tobacco smokeInfo
- Publication number
- DE1692938A1 DE1692938A1 DE19661692938 DE1692938A DE1692938A1 DE 1692938 A1 DE1692938 A1 DE 1692938A1 DE 19661692938 DE19661692938 DE 19661692938 DE 1692938 A DE1692938 A DE 1692938A DE 1692938 A1 DE1692938 A1 DE 1692938A1
- Authority
- DE
- Germany
- Prior art keywords
- tobacco
- substances
- added
- methoxy
- vinylbenzene
- 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
- 241000208125 Nicotiana Species 0.000 title claims description 32
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims description 32
- 238000000034 method Methods 0.000 title claims description 14
- 239000000779 smoke Substances 0.000 title claims description 8
- 239000000126 substance Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 16
- 235000019504 cigarettes Nutrition 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 2
- NJXYTXADXSRFTJ-UHFFFAOYSA-N 1,2-Dimethoxy-4-vinylbenzene Chemical compound COC1=CC=C(C=C)C=C1OC NJXYTXADXSRFTJ-UHFFFAOYSA-N 0.000 claims 2
- -1 methylenedioxy groups Chemical group 0.000 claims 2
- 238000002955 isolation Methods 0.000 claims 1
- 150000003440 styrenes Chemical class 0.000 claims 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 239000001273 butane Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- FXEIWOUGVRUQNK-UHFFFAOYSA-N 5-ethenyl-2-methoxyphenol Chemical compound COC1=CC=C(C=C)C=C1O FXEIWOUGVRUQNK-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- YLGXILFCIXHCMC-JHGZEJCSSA-N methyl cellulose Chemical compound COC1C(OC)C(OC)C(COC)O[C@H]1O[C@H]1C(OC)C(OC)C(OC)OC1COC YLGXILFCIXHCMC-JHGZEJCSSA-N 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 125000003198 secondary alcohol group Chemical group 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Tobacco Products (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Description
H.F, & Ph.P. Reemtsma.Hamburg-Großflottbek,Parkstr.51H.F, & Ph.P. Reemtsma, Hamburg-Großflottbek, Parkstrasse 51
"Verfahren zur Beeinflussung der geschmacklichen Eigenschaften"Process for influencing the taste properties
des Tabakrauch.es"of tobacco smoke.es "
Die Erfindung betrifft ein Verfahren zur Beeinflussung der gegeschmacklichen Eigenschaften des Tabakrauches,welohea es ermöglicht, innerhalb weiter Grenzen die Geschmacksnote insbesondere einer Zigarettentabakmischung,gegebenenfalls auch einer Kunsttabakfolie oder einer neutralen selbst bei ihrem Verglimmen keine geschmacklich negativ wirksamen Komponenten entwickelnden Tragsubstanz zu beeinflussen.The invention relates to a method for influencing the palatable Properties of tobacco smoke, which makes it possible within wide limits the flavor note in particular of a cigarette tobacco mixture, possibly also one Artificial tobacco foil or a neutral film, even when it fades, does not develop any components that have a negative effect on the taste To influence supporting substance.
Es ist bereite vorgeschlagen worden(deutsche Patentschrift 1 131 580), Kunsttabakfasern dadurch herzustellen,daß eine vorgegebene Tabakmischung einer Sxtraktionsbehandlung-unter aufeinanderfolgender Extraktion der wasserlöslichen und Jer Alkohollöslichen Aromastoffe, unterzogen wird,durch welche sämtliche Aromastoffe gewonnen verden,aus diesen Stoffen einen Trockenextrakt herzustellen und diesen Extrakt einem aus Zellulose-oder Tylosematerial bestehenden Trägerstoff zuzumischen,worauf die Mischung zu Pasern vom Querschnitt der Naturfaser versponnen wird.It has already been proposed (German patent specification 1 131 580), Manufacture synthetic tobacco fibers in that a predetermined tobacco mixture an extraction treatment-under successive Extraction of water-soluble and alcohol-soluble flavorings, is subjected, through which all flavorings are obtained from to produce a dry extract of these substances and an extract made of cellulose or tylose material To mix in the carrier material, whereupon the mixture is made into strips of cross-section the natural fiber is spun.
Dieses bekannte Verfahren dient zu dem Zwecke,einen Kunsttabak herzustellen,welcher frei von den holzigen bzw.ZellulosebestandteilenThis known method is used for the purpose of producing an artificial tobacco, which free from the woody or cellulose components
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des Tabaks ist,und nicht der planmäßigen Beeinflussung der Geschmackseigenschaften eines gegebenen Tabaks oder einer Tabakmischung.of tobacco is, and not the systematic manipulation of Taste characteristics of a given tobacco or tobacco blend.
Diese letztere Aufgabe liegt andererseits einem bekannten Verfahren(amerikanische Patentschrift 3147485) zugrunde,nach welchem einer Tabakmischung oder dem Material,aus welchem ein Zigarettenfilter besteht,bzw.dem Zigarettenpapier bestimmte organische Verbindungen zugesetzt werden sollen,um dadurch die unvermeidlichen auf Differenzen in der Beschaffenheit der Mischungskomponenten beruhenden Unterschiede einer gegebenen in der Zigarette enthaltenen Tabakmischung zu überblenden.On the other hand, this latter object is based on a known method (American patent specification 3147485) which a tobacco blend or the material from which a Cigarette filter exists or the cigarette paper determined Organic compounds should be added to avoid the inevitable differences in the nature of the Mixture components based differences of a given tobacco mixture contained in the cigarette to blend.
Gemäß der Erfindung wird erstmalig der Zusatz von aus Tabak isolierten Substanzen zur geschmacklichen Beeinflussung von Tabakmischungen vorgeschlagen,um die an sich vorhandene Wirkung der für das Aroma der Zigarette in erster Linie bestimmenden Mischungskomponenten und damit entweder das natürlicheAccording to the invention, for the first time, the addition of from tobacco isolated substances for influencing the taste of tobacco blends are proposed in order to reduce the existing effect which primarily determines the aroma of the cigarette Mixture components and thus either the natural one
Gesamtaroma der Zigarette bei gleichbleibendem Anteil dieser Mischungskomponenten zu verbessern,oder unter Umständen den Mengenanteil von teuren Komponenten der Tabakmischung herabzusetzen, ohne daß das durch diese Zusatzstoffe aufgefüllteTotal aroma of the cigarette with the same proportion of it To improve mixture components or, under certain circumstances, reduce the amount of expensive components in the tobacco mixture, without that being replenished by these additives
Aroma des Rauches nachteilig beeinflußt wird.Flavor of the smoke is adversely affected.
Die Aromastoffe,welche gemäß der Erfindung zugesetzt werden können,werden durch Untersuchung der betreffenden Tabakwasserdampfdestillate ermittelt.Sie können aus diesen Destillaten isoliert werden.Es ist aber auch möglich,diese Stoffe,nachdem ihre chemische Bestimmung durch Untersuchung der TabakwasserdampfDestillate erfolgt ist,synthetisch herzustellen,ohne daß dann also für ihre Gewinnung von ifaturtabak ausgegangen werden muß.The flavoring substances which are added according to the invention can be determined by examining the tobacco steam distillates in question They can be isolated from these distillates, but it is also possible to use these substances after their chemical determination by examining the tobacco water vapor distillates has taken place to produce synthetically, without then starting out from ifatur tobacco for their production got to.
209812/1263209812/1263
Biese Stoffe werden in jeweils zweckentsprechenden Mengen,die innerhalb verhältnismäßig weiter Grenzen schwanken können,und je nach ihrer Zusammensetzung 5-500 Teile auf 1 Million(ppm) betragen können,zugesetzt.These substances are used in appropriate amounts may fluctuate within relatively wide limits, and depending on their composition 5-500 parts to 1 million (ppm) can be added.
Als eine erste Gruppe von den Toraussetzungen des neuen Verfahrens entsprechenden,teilweise also solche neuen Stoffen, deren Vorhandensein im Tabak und deren Wirkung auf das Aroma des Tabakrauchs festgestellt wurden,seien die VinyTbenzole,die in der 3.4.-Stellung durch Hydroxygruppen,Methoxygruppen und die Methylendloxygruppen disubstituiert sind,sowie die,deren Vinylgruppe zu der entsprechenden sekundären Alkoholgruppe hydratisiert worden sind,insbesondere die folgenden Verbindungen zu nennen:As a first group of the goal suspensions of the new procedure corresponding, in some cases such new substances, their presence in tobacco and their effect on the aroma of tobacco smoke were found to be the VinyTbenzenes, the in the 3.4.-position by hydroxyl groups, methoxy groups and the methylenedoxy groups are disubstituted, as well as those whose Vinyl group have been hydrated to the corresponding secondary alcohol group, particularly the following compounds to call:
1. 1-Hydro3cy-2-methoxy-4-vinylbenzol1. 1-Hydro3cy-2-methoxy-4-vinylbenzene
2. 1-Hydroxy-2-methoxy-5-viny!benzol2. 1-Hydroxy-2-methoxy-5-vinyl benzene
3. 1.2.-Dimethoxy-4-Vinylbenzol3. 1.2.-Dimethoxy-4-vinylbenzene
4. 1.2.-Methylen-dioxy-4-viny!benzol4. 1.2.-Methylen-dioxy-4-vinylbenzene
5. 4-Hydroxy-5-methoxy-a-phenaethylalkohol5. 4-Hydroxy-5-methoxy-a-phenaethyl alcohol
Diese Stoffe werden dem Tabak für sich oder in Mischung in anteiligen Mengen von zwischen 5 und 500 ppm,vorzugsweise 10 bis 100 ppm zugesetzt.These substances are used alone or in a mixture in the tobacco proportional amounts of between 5 and 500 ppm, preferably 10 to 100 ppm, are added.
Eine zweite aus dem Wasserdampfdestillat .Isolierbare Gruppe Ton Substanzen,die das Aroma des Tabakrauches mitbestimmen, umfaßt die folgenden Verbindungen:A second group that can be isolated from the steam distillate Clay substances that determine the aroma of tobacco smoke, includes the following compounds:
1. 4 2·.6·.6'-Trimethylcyelonexanon-(4f)-yliden-(1r)-buten-(2) sowie der entsprechende Alkohol1. 4 2 · .6 · .6'-Trimethylcyelonexanone- (4 f ) -ylidene- (1 r ) -butene- (2) and the corresponding alcohol
2. 4 2·.6·.6·-Trimethylcyclohexen-C2«)-on-(4*)-yl-(1')-buten-(2) sowie der entsprechende Alkohol2. 4 2 · .6 · .6 · -Trimethylcyclohexene-C2 «) - on- (4 *) - yl- (1 ') - buten- (2) as well as the corresponding alcohol
209812/1263209812/1263
3. 4 2·.6'.6·-Trimethylcyclohexen-(2·)-on-(4')-yliden-(1·)-buten-(2) sowie der entsprechende Alkohol3. 4 2 · .6'.6 · -Trimethylcyclohexen- (2 ·) -one- (4 ') -yliden- (1 ·) -butene- (2) as well as the corresponding alcohol
4. 4 2'.6l.6l-Trimethylcyclohexen-(2')-on-(4l)-yliden-(11)-butan sowie der entsprechende Alkohol4. 4 2'.6 l .6 l -Trimethylcyclohexen- (2 ') -one- (4 l ) -ylidene- (1 1 ) -butane and the corresponding alcohol
5. 4 2».6·.6f-Trimethylcyclohexanon-(4')-yl-(1')-buten-(2) sowie der entsprechende Alkohol5. 4 2 ».6 · .6 f -trimethylcyclohexanon- (4 ') - yl- (1') - butene (2) and the corresponding alcohol
6. 4 2l.6'.6'-Trimethylcyclohexen-(2l)-on-(4t)-yl-(1l)-"butan sowie der entsprechende Alkohol6. 4 2 l .6'.6'-Trimethylcyclohexen- (2 l ) -one- (4 t ) -yl- (1 l ) - "butane and the corresponding alcohol
7. 4 2·.6'.6'-Trimethylcyclohexanon-(4')-yliden-(1')-butan sowie der entsprechende Alkohol7. 4 2 · .6'.6'-trimethylcyclohexanon- (4 ') - ylidene- (1') - butane as well as the corresponding alcohol
a. 4 2i.6l.6l-Trimethylhexen-(2l)-on-(4f)-yl-(11)-butanol-(2) a. 4 2 i .6 l .6 l -Trimethylhexen- (2 l ) -one- (4 f ) -yl- (1 1 ) -butanol- (2)
9. 4 2'.6'.6l-Trimethylcyclohexen-(2l)-on-(4l)-yl-(1l) -butanol-(2)9. 4 2'.6'.6 l -Trimethylcyclohexen- (2 l ) -one- (4 l ) -yl- (1 l ) -butanol- (2)
IO; 4 2l.6l.6l-Trimethylcyclohexen-(2'7-on-(4t)-yl-(1')-"buten-IO; 4 2 l .6 l .6 l -Trimethylcyclohexen- (2'7-one- (4 t ) -yl- (1 ') - "buten-
11. 4 2t.6l.6t-Irimethylcyclohexen-(2l)-on-(4l)-yliden-(11)-butanon-(3). 11. 4 2 t .6 l .6 t -Irimethylcyclohexen- (2 l ) -one- (4 l ) -ylidene- (1 1 ) -butanone- (3).
12. 4 2·.6·.6'-Trimethylcyclohexanon-(4')-yl-(1')-butanon-(3) und deren Di- und Tetrahydroderivate.12. 4 2 · .6 · .6'-Trimethylcyclohexanon- (4 ') - yl- (1') - butanone- (3) and their di- and tetrahydro derivatives.
Diese Stoffgruppe ist bereits in kleineren Mengen von Größenordnungsmäßig 2 bis 120 ppm,die dem Tabak zugesetzt werden,im Sinne der Zielsetzung des neuen Verfahrens wirksam.This group of substances is already present in smaller amounts of the order of 2 to 120 ppm, which are added to the tobacco Effective in terms of the objective of the new procedure.
m * βm * β
• *• *
Die Isolierung dieser Stoffe aus den Wasserdampfdestillaten erfolgt nach den hierfür üblichen Methoden der organischen Chemie.These substances are isolated from the steam distillates using the organic methods customary for this purpose Chemistry.
Durch die Erfindung werden neue Möglichkeiten sowohl für die Beeinflussung der geschmacklichen Eigenschaften des Ta~bakrauch.es wie gegebenenfalls auch in wirtschaftlicher Hinsicht für dieThe invention opens up new possibilities for influencing the taste properties of the tobacco smoke as if necessary also in economic terms for the
Terbilligung von teuren Mischungskomponenten und Erzeugung derDiscounting of expensive mixture components and production of the
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sonst auf diese zurückgehenden Nuancen der geschmacklichen Eigenschaften durch die erfindungsgemäß zuzusetzenden tabakeigenen Stoffe eröffnet.otherwise due to these nuances of the taste properties due to the tobacco inherent to be added according to the invention Fabrics opened.
Patentansprüche: Patent claims :
- 6 209812/1263 - 6 209812/1263
Claims (6)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DER0042755 | 1966-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1692938A1 true DE1692938A1 (en) | 1972-03-16 |
Family
ID=7406745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19661692938 Pending DE1692938A1 (en) | 1966-03-05 | 1966-03-05 | Process for influencing the taste properties of tobacco smoke |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3476118A (en) |
| BE (1) | BE694958A (en) |
| CH (1) | CH491610A (en) |
| DE (1) | DE1692938A1 (en) |
| GB (2) | GB1175442A (en) |
| LU (1) | LU53121A1 (en) |
| NL (1) | NL6703164A (en) |
| NO (1) | NO118357B (en) |
| SE (1) | SE343465B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7462727B2 (en) | 2003-07-25 | 2008-12-09 | Basf Aktiengesellschaft | Multimetal oxide containing silver, vanadium and a promoter metal and use thereof |
Families Citing this family (64)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3651816A (en) * | 1969-02-20 | 1972-03-28 | Georg Neurath | Treating tobacco |
| GB1591098A (en) | 1976-11-23 | 1981-06-17 | Naaden International Nv | Substituted cyclohexanones as falvour and fragrance materials |
| DE102004028930A1 (en) * | 2004-06-15 | 2006-01-05 | Basf Ag | Silver, vanadium and phosphorus group containing multimetal oxide and its use |
| RU2307544C1 (en) * | 2006-03-23 | 2007-10-10 | Олег Иванович Квасенков | Method for producing of aromatized tobacco |
| US7726320B2 (en) | 2006-10-18 | 2010-06-01 | R. J. Reynolds Tobacco Company | Tobacco-containing smoking article |
| US20100037903A1 (en) * | 2008-08-14 | 2010-02-18 | R. J. Reynolds Tobacco Company | Method for Preparing Flavorful and Aromatic Compounds |
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| US9924741B2 (en) | 2014-05-05 | 2018-03-27 | Rai Strategic Holdings, Inc. | Method of preparing an aerosol delivery device |
| US10888119B2 (en) | 2014-07-10 | 2021-01-12 | Rai Strategic Holdings, Inc. | System and related methods, apparatuses, and computer program products for controlling operation of a device based on a read request |
| US10238145B2 (en) | 2015-05-19 | 2019-03-26 | Rai Strategic Holdings, Inc. | Assembly substation for assembling a cartridge for a smoking article |
| US20170055565A1 (en) | 2015-09-02 | 2017-03-02 | R. J. Reynolds Tobacco Company | Systems and Apparatus for Reducing Tobacco-Specific Nitrosamines in Dark-Fire Cured Tobacco Through Electronic Control of Curing Conditions |
| US20170059554A1 (en) | 2015-09-02 | 2017-03-02 | R. J. Reynolds Tobacco Company | Method for monitoring use of a tobacco product |
| US11641874B2 (en) | 2015-09-09 | 2023-05-09 | R.J. Reynolds Tobacco Company | Flavor delivery article |
| US10532046B2 (en) | 2015-12-03 | 2020-01-14 | Niconovum Usa, Inc. | Multi-phase delivery compositions and products incorporating such compositions |
| US10405579B2 (en) | 2016-04-29 | 2019-09-10 | Rai Strategic Holdings, Inc. | Methods for assembling a cartridge for an aerosol delivery device, and associated systems and apparatuses |
| US20220079212A1 (en) | 2020-09-11 | 2022-03-17 | Nicoventures Trading Limited | Alginate-based substrates |
| KR20240044428A (en) | 2021-07-09 | 2024-04-04 | 니코벤처스 트레이딩 리미티드 | extruded structure |
| WO2023002439A1 (en) | 2021-07-22 | 2023-01-26 | Nicoventures Trading Limited | Nanoemulsion comprising cannabinoid and/or cannabimimetic |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3082125A (en) * | 1961-05-23 | 1963-03-19 | Philip Morris Inc | Process for improving the flavor and aroma of tobacco and product |
| US3047433A (en) * | 1961-10-19 | 1962-07-31 | Philip Morris Inc | Use of diels-alder adducts as tobacco additives |
| GB989703A (en) * | 1963-04-29 | 1965-04-22 | British American Tobacco Co | Improvements relating to the processing of smoking tobacco |
| US3174485A (en) * | 1963-05-23 | 1965-03-23 | Brown & Williamson Tobacco Corp | Organoleptically improved tobacco product |
| US3298378A (en) * | 1964-01-30 | 1967-01-17 | Kimberly Clark Co | Method of making a tobacco product |
-
1966
- 1966-03-05 DE DE19661692938 patent/DE1692938A1/en active Pending
-
1967
- 1967-02-27 US US619058A patent/US3476118A/en not_active Expired - Lifetime
- 1967-02-28 NL NL6703164A patent/NL6703164A/xx unknown
- 1967-03-03 GB GB02895/69A patent/GB1175442A/en not_active Expired
- 1967-03-03 BE BE694958D patent/BE694958A/xx unknown
- 1967-03-03 LU LU53121D patent/LU53121A1/xx unknown
- 1967-03-03 SE SE2970/67A patent/SE343465B/xx unknown
- 1967-03-03 CH CH315167A patent/CH491610A/en not_active IP Right Cessation
- 1967-03-03 GB GB00141/67A patent/GB1175441A/en not_active Expired
- 1967-03-04 NO NO167130A patent/NO118357B/no unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7462727B2 (en) | 2003-07-25 | 2008-12-09 | Basf Aktiengesellschaft | Multimetal oxide containing silver, vanadium and a promoter metal and use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| NO118357B (en) | 1969-12-15 |
| GB1175442A (en) | 1969-12-23 |
| GB1175441A (en) | 1969-12-23 |
| US3476118A (en) | 1969-11-04 |
| NL6703164A (en) | 1967-09-06 |
| SE343465B (en) | 1972-03-13 |
| LU53121A1 (en) | 1967-05-03 |
| CH491610A (en) | 1970-06-15 |
| BE694958A (en) | 1967-08-14 |
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