DE842995C - Pressure transmission means - Google Patents
Pressure transmission meansInfo
- Publication number
- DE842995C DE842995C DEB7014D DEB0007014D DE842995C DE 842995 C DE842995 C DE 842995C DE B7014 D DEB7014 D DE B7014D DE B0007014 D DEB0007014 D DE B0007014D DE 842995 C DE842995 C DE 842995C
- Authority
- DE
- Germany
- Prior art keywords
- glycol
- acid
- esters
- pressure transmission
- transmission means
- 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.)
- Expired
Links
- 230000005540 biological transmission Effects 0.000 title description 3
- 150000001991 dicarboxylic acids Chemical class 0.000 claims description 5
- 150000001298 alcohols Chemical class 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 21
- 150000002148 esters Chemical class 0.000 description 11
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 5
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000001361 adipic acid Substances 0.000 description 3
- 235000011037 adipic acid Nutrition 0.000 description 3
- 150000002334 glycols Chemical class 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- -1 aliphatic dicarboxylic acids Chemical class 0.000 description 2
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 2
- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- UTOPWMOLSKOLTQ-UHFFFAOYSA-N octacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O UTOPWMOLSKOLTQ-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 2
- RTBFRGCFXZNCOE-UHFFFAOYSA-N 1-methylsulfonylpiperidin-4-one Chemical compound CS(=O)(=O)N1CCC(=O)CC1 RTBFRGCFXZNCOE-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- HABHUTWTLGRDDU-UHFFFAOYSA-N 2-oxopimelic acid Chemical compound OC(=O)CCCCC(=O)C(O)=O HABHUTWTLGRDDU-UHFFFAOYSA-N 0.000 description 1
- WDBZEBXYXWWDPJ-UHFFFAOYSA-N 3-(2-methylphenoxy)propanoic acid Chemical compound CC1=CC=CC=C1OCCC(O)=O WDBZEBXYXWWDPJ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- JFCQEDHGNNZCLN-UHFFFAOYSA-N anhydrous glutaric acid Natural products OC(=O)CCCC(O)=O JFCQEDHGNNZCLN-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical class OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 229960000541 cetyl alcohol Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000010696 ester oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 description 1
- 229950006389 thiodiglycol Drugs 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M3/00—Liquid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single liquid substances
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
- C10M2207/046—Hydroxy ethers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/102—Polyesters
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/109—Polyethers, i.e. containing di- or higher polyoxyalkylene groups esterified
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/042—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds between the nitrogen-containing monomer and an aldehyde or ketone
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/043—Mannich bases
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2221/04—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2221/043—Polyoxyalkylene ethers with a thioether group
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
Druckübertragungsmittel Es wurde gefunden, daß die linearen Poly. ster aus Dicarbonsäuren und zweiwertigen Alkoholen, deren Herstellung beispielsweise in der Patentschrift 318222 beschrieben ist, Kautschuk nicht angreifen, so daß sie als Druckübertragungsmittel in Vorrichtungen verwendet werden können, die, wie z. B. hydraulische Apparate, mit Gummidichtungen versehen sind.Pressure transmission media It has been found that the linear poly. ster from dicarboxylic acids and dihydric alcohols, their production, for example is described in the patent 318222, do not attack rubber, so that they can be used as a pressure transmission medium in devices which, such. B. hydraulic equipment, are provided with rubber seals.
Am besten eignen sich für den angegebenen Zweck die Polyester aus aliphatisch-,n Dicarbonsäuren, z. B. aus Bernsteinsäure, Glutarsäure, Adipinsäure, Sebacinsäure, Ketopimelinsäure, aber auch Ester aromatischer und hy<lroaromatisclier Dicarbonsä tuen können, besonders als Zusätze zu den Estern aliphatischer Dicarbonsäuren, verwendet werden. Als Glykolkomponente können die Ester die einfachen Glykole, wie Äthylenglykol, Propylenglykol, Butylenglykole sowie auch Polyglykole enthalte ferner auch Glykole, in denen die Kohlenstoffkette durch andere Heteroatome unterbrochen ist, wie Thiodiglykol oder Diäthanolamin.The polyesters are best suited for the stated purpose aliphatic, n dicarboxylic acids, e.g. B. from succinic acid, glutaric acid, adipic acid, Sebacic acid, ketopimelic acid, but also esters of aromatic and hy <lroaromatisclier Dicarboxylic acids, especially as additives to the esters of aliphatic dicarboxylic acids, be used. As a glycol component, the esters can be the simple glycols, such as Ethylene glycol, propylene glycol, butylene glycols and also polyglycols also contain also glycols in which the carbon chain is interrupted by other heteroatoms is like thiodiglycol or diethanolamine.
Je nach der Art der bei der Veresterung verwendeten Ausgangsstoffe sind die Ester Öle von verschieden hoher Viskosität oder mehr oder weniges feste Massen von vaselin- bis talgartiger Konsistenz. Ölige Stoffe sind beispielsweise die Ester der Adipinsäure mit i, 2-Propylenglykol, i, 3-Butylenglykol, D i- oder Triäthylenglykol, Tetradecenglykol oder Dimethyldimethylolmethan, die Ester der Methyladipinsäuren mit Äthylenglykol, die Ester der Bernsteinsäure mit i, 2-Propylenglykol oder Diäthylenglykol und die Ester der Maleinsäure mit Äthylenglykol oder i, 2-Propylenglykol.Depending on the type of starting materials used in the esterification the ester oils are of different viscosity or more or less solid Masses from vaseline to sebum-like consistency. Oily substances are for example the esters of adipic acid with i, 2-propylene glycol, i, 3-butylene glycol, Di- or triethylene glycol, tetradecenglycol or dimethyldimethylolmethane, the Esters of methyl adipic acid with ethylene glycol, the esters of succinic acid with i, 2-propylene glycol or diethylene glycol and the esters of maleic acid with ethylene glycol or i, 2-propylene glycol.
Auch durch Verwendung von Mischungen verschiedener Ester miteinander oder mit Verdünnungsmitteln, z. B. Alkoholen, wie Äthylalkohol, Diacetonalkohol und Äthylenglykolmonoalkyläther, lassen sich die Eigenschaften dem gewünschten Zweck anpassen.Also by using mixtures of different esters with one another or with diluents, e.g. B. alcohols such as ethyl alcohol, diacetone alcohol and ethylene glycol monoalkyl ether, the properties can be adjusted to the desired purpose adjust.
Die Ester werden in an sich üblicher Weise, am zweckmäßigsten durch Erhitzen der freien Dicarbonsäuren mit den Glykolen, hergestellt. Man kann auf i Mol Säure zwischen o,8 und 2 Mol des Glykols anwenden. Die aus i Mol Säure und weniger als i,i Mol Glykol erhaltenen Verbindungen sind noch sauer; sie können durch Behandeln mit Metalloxyden, -hydroxyden oder Salzen in Salze, z. B. Zink-, Magnesium- oder Calciumsalze, übergeführt und als solche verwendet werden. Die mit mehr als i,i Mol Glykol auf i Mol Säure erhaltenen Ester sind neutral; sie werden mit steigendem Glykolgehalt dünnflüssiger. Bei der Veresterung kann man einbasische Carbonsäuren, z. B. Stearinsäure ,oder Montansäure, oder einwertige Alkohole, z. B. Hexyl- öder Cetylalkohol, mitverwenden und dadurch die Eigenschaften der Ester noch beeinflussen. Man kann die Ester vor der Anwendung noch reinigen, z. B. durch Behandeln mit Bleicherde, jedoch ist dies meist nicht erforderlich.The esters are in a conventional manner, most expediently by Heating the free dicarboxylic acids with the glycols. You can go to i Use moles of acid between 0.8 and 2 moles of the glycol. Those from 1 mole of acid and less Compounds obtained as i, i mol of glycol are still acidic; they can by treating with metal oxides, hydroxides or salts in salts, e.g. B. zinc, magnesium or Calcium salts, can be converted and used as such. Those with more than i, i The moles of glycol obtained on 1 mole of the acid are neutral; they are increasing with Glycol content thinner. In the esterification one can use monobasic carboxylic acids, z. B. stearic acid, or montanic acid, or monohydric alcohols, e.g. B. Hexyl orer Cetyl alcohol, and thereby influence the properties of the ester. You can clean the ester before use, for. B. by treating with fuller's earth, however, this is usually not necessary.
Beispiel Eine Mischung aus 5o Gcwichtsteilen des Polyesters aus i Mol Adipinsäure und i, 3 Mol Triäthylenglykol mit _ 5o Gewichtsteilen Äthylenglykolmonoäthyläther eignet sich als Füllung einer hydraulischen Bremsvorrichtung. Sie schmiert gut und greift Kautschuk nicht an.Example A mixture of 50 parts by weight of the polyester from i Moles of adipic acid and 1.3 moles of triethylene glycol with _ 50 parts by weight of ethylene glycol monoethyl ether is suitable as a filling for a hydraulic braking device. It lubricates well and does not attack rubber.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB7014D DE842995C (en) | 1940-07-10 | 1940-07-10 | Pressure transmission means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB7014D DE842995C (en) | 1940-07-10 | 1940-07-10 | Pressure transmission means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE842995C true DE842995C (en) | 1952-07-03 |
Family
ID=6955049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB7014D Expired DE842995C (en) | 1940-07-10 | 1940-07-10 | Pressure transmission means |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE842995C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10882823B2 (en) | 2015-04-15 | 2021-01-05 | T. Hasegawa Co., Ltd. | Flavor modulator having pyridine derivative or salt thereof as active ingredient |
-
1940
- 1940-07-10 DE DEB7014D patent/DE842995C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10882823B2 (en) | 2015-04-15 | 2021-01-05 | T. Hasegawa Co., Ltd. | Flavor modulator having pyridine derivative or salt thereof as active ingredient |
| US10894772B2 (en) | 2015-04-15 | 2021-01-19 | T. Hasegawa Co., Ltd. | Flavor modulator having pyridine derivative or salt thereof as active ingredient |
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