EP1884555A2 - Masking mineral oil smell and scenting of mineral oils - Google Patents

Abstract

Mineral oil (A) contains 0.5-1.2 ppm of odorant(s) selected from 156 specific compounds (mainly esters, aldehydes, ketones, alcohols, nitriles or heterocyclic compounds) such as 2,4,6-trimethyl-1,3,5-trioxan (Ia), 2,4,6-trimethyl-4-phenyl-1,3-dioxan (Ia), 1-octanol, (2E,6Z)-2,6-nonadienal, 3-methyl-2-butenyl acetate or hexanal. Mineral oil (A) contains 0.5-1.2 ppm of odorant(s) (I) selected from: 2,4,6-trimethyl-4-phenyl-1,3-dioxan; ethyl 2-methyl-1,3-dioxolan-2-acetate; 4-propyl-(Z)-2,4-dimethyl-1,3-oxathian; 1,1-dimethoxy-1-nonene; 1-octanol; 5-hexyl-dihydro-2(3H)-furanone; 3-(4-ethylphenyl)-2,2-dimethylpropanal; (E,E)-2,4-decadienal; (2E,6Z)-2,6-nonadienal; 3,7-dimethyl-(2E)-2,6-octadienyl formate; 3-methyl-2-butenyl acetate; 1-(2,6,6-trimethyl-3-cyclohexenyl)-(E)-2-butenone; 2(E)-decenal; 2-butyl-3,6-dihydro-4,6-dimethyl-2H-pyran; 1,2,3,4,4a,5,6,7-octahydro-2,6,6-trimethyl-2-naphthol; 2(E)-nonenenitrile; (E)-2-tridecenal; (E)-2-tridecenenitrile; 3,7-dimethyl-(2Z)-3,6-nonadienenitrile; 3-methyl-4-(2,6,6-trimethyl-2-cyclohexenyl)-3-buten-2-one; 4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one; 2,4,6-trimethyl-3-cyclohexene-1-carboxaldehyde; 2,4-dimethyl-(Z)-3-cyclohexene-1-carboxaldehyde; (Z)- or (E)-3-hexenol; 3,7-dimethyl-3-octanol; (Z)-4-decenal; octahydro-2,2,5,8,8,9a-hexamethyl-9-4H-4a,9-methanoazuleno[5,6-d]-1,3-dioxole; 2,6,10-trimethyl-undecenal; (E)- or (Z)-9-undecenal; 4-(1-methylethyl)-benzaldehyde; 1,3,3- or 1,7,7-trimethyl-bicyclo(2,2,1)heptanol; 2,6,6-trimethyl-bicyclo(3,1,1)hept-2-ene; cyclohexyl butyrate; ethyl butyrate; ethyl 2-methylbutyrate; 6-(1-methylpropyl)-quinoline; 5-methyl-2-(1-methylethyl)-(iso)cyclohexanone; decanal; 2-methyl-dodecanal; 2-propenyl cyclohexyloxyacetate; 2-propenyl 2-(3-methylbutoxy)-acetate; ethanethoic acid S-[1-[2-(acetoxy)ethyl)butyl] ester; ethyl heptanoate; hexanal; 3,5,5-trimethylhexanal; nonanal; octanal; 2-methoxy-4-(2-propenyl)-phenol; phenylacetaldehyde; alpha -methyl-phenylacetaldehyde; 2-ethoxy-1-(1-methylethyl)-pyrazine; 2-(3-phenylpropyl)-pyridine; 4-(4,8-dimethyl-3,7-nonadienyl)- pyridine; undecanal; 2-methyl-undecanal; 2,4,6-trimethyl-1,3,5-trioxan (Ia); 3-methylbutyl acetate; 4-hydroxy-2,5-dimethyl-2(3H)-furanone; dihydro-5-pentyl-2(3H)-furanone; 3,7-dimethyl-(2E)-2,6-octadienol; 3,7-dimethyl-(2E)-2,6-octadienal; 1-(2,6,6-trimethyl-1-cyclohexenyl)-(E)-2-butenone; 3,7-dimethyl-6-octenol; 3,7-dimethyl-6-octenal; 3,7-dimethyl-6-octenenitrile; 3,7-dimethyl-acetaldehyde;((3,7-dimethyl-6-octenyl)oxy)-4-methylbenzaldehyde; (2,2-dimethoxyethyl)-benzene; cyclohexyl acetate; 5-methyl-2-(1-methylethyl)-(L) or (iso)-cyclohexanone; 2-propenyl cyclohexanepropionate; decanal; 2-propenyl phenoxyacetate; 1-(1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthyl)-ethanone; 1-(2-pyrazinyl)-ethanone; 1-(4-methylphenyl)-ethanone; heptanal; 1-methylpropyl 3-methyl-thiobutyrate; 7-methyl-2H-1,5-benzodioxepin-3(4H)-one; 3,7-dimethyl-(2Z) or (2E)-2,6-octadienenitrile; 2,6-dimethyl-5-heptenal; 5-butyl-tetrahydro-2(3H)-furanone; ethyl 3-methylbutyrate; 3,7-dimethyl-1,6-octadien-3-ol; ethyl 2-methylpentanoate; ethyl 3-phenyl-(E)-2-propenoate; methyl 7-isopropyl-1,4a-dimethyl-1,2,3,4,4a,9,10,10a-octahydro-phenanthrene-1-carboxylate; alpha -methyl-1,3-benzodioxolan-5-propanal; ethyl 2-methyl-1,3-dioxolan-2-acetate; 10-undecenal; 1-decanol; 3a,4,5,6,7,7a-hexahydro-1H-4,7-methanoinden-5-yl propionate; 3,5,5-trimethylhexanol; 1-octen-3-yl acetate; 2,6-octadienyl acetate; 5-heptyl-dihydro-2(3H)-furanone; 3,7-dimethyl-(2E) or (2Z)-2,6-octadienyl acetate; 4-(2,6,6-trimethyl-1-cyclohexenyl)-2-butanone; 3-methyl-2-(2-pentenyl)-(Z)-2-cyclopenten-1-one; 7-methyl-2H-1-benzopyran-2-one; 2,6-dimethyl-2-heptanol; 2,6-dimethyl-2-octanol; 2-octanone; 2-methyl-2-pentenoic acid; 2-phenylethanol; 3-phenyl-(E)-2-propenol; 2-methyl-3-phenyl-(E)-2-propenal; 3-phenyl-(E)-2-propenal; benzyl 3-phenyl-2-propenoate; 1-(2,4,4-trimethyl-2-cyclohexenyl)-(2E)-3-buten-2-one; 4-(2,6,6-trimethyl-1-cyclohexenyl)-buten-2-one; 3-(4-methyl-3-pentenyl)-3-cyclohexene-1-carboxaldehyde; 4-(4-hydroxy-4-methylpentyl)-3-cyclohexene-1-carboxaldehyde; alpha ,alpha ,4-trimethyl-3-cyclohexene-1-methyl acetate; 2,6-dimethyl-2-octanol; octahydro-4,7-methano-1H-indene-2,5-dimethanol; 2,6,10-trimethyl-5,9-undecadienal; 2,4,4,7-tetramethyl-6-octen-3-one; 2,6-dimethyl-7-octen-2-ol; 2-methylpropyl 2-hydroxybenzoate; 3-methylbutyl benzoate; ethyl benzoate; methyl 2-(methylamino)-benzoate; n-pentyl 2-hydroxybenzoate; n-propyl benzoate; 1-(1,1-dimethylethyl)-3,5-dimethyl-2,4,6-trinitrobenzene; diphenylmethane; 1,4-dimethoxybenzene; 2,2-dimethyl-3-methylene-bicyclo(2,2,1)heptane; 2-phenylethyl 3-methylbutyrate; 3-methylbutyl 3-methylbutyrate; butyl butyrate; ethyl 3-oxobutyrate; cyclohexyl acetate; cyclohexylethyl acetate; 5-methyl-2-(1-methylethyl)-cyclohexanol; 5-methyl-2-(1-methylethyl)-cyclohexanol acetate; 1-methyl-4-(1-methylethylidene)-cyclohexene; methyl 3-oxo-2-pentyl-(E)-cyclopentaneacetate; 2-phenylethyl acetate; 1-(2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a,7-methanoazulen-5-yl)-ethanone; 1-(2-naphthyl)-ethanone; 4,4a,5,9b-tetrahydro-indeno(1,2-d)-1,3-dioxin; 4,4a,5,9b-tetrahydro-2,4-dimethyl-indeno(1,2-d)-1,3-dioxin; benzophenone; ethyl octanoate; alpha -cyclohexylidene-phenylacetonitrile; 2-methylpropyl phenylacetate; alpha -methylbenzyl acetate; diethyl propanedioate; 2-phenoxyethyl 2-methylpropionate; and hexyl 2-methylpropionate. An independent claim is included for an odorizing additive for mineral oils, in which at least 55 wt. % of the odorant components consist of (I).

Description

The invention relates to the field of masking mineral oil odor and the scenting of mineral oils. In this context, the invention relates to a selection of particularly suitable fragrances for masking a mineral oil odor and the scenting of mineral oils. Furthermore, the invention relates to additives and corresponding scented mineral oils themselves, in particular fuels and heating or lubricating oils.

• Kraftstoffe, insbesondere
  • Benzin und insbesondere Ottokraftstoff gemäß DIN EN 228),
  • Kerosin und insbesondere Flugbenzin gemäß ASTM D910 Sorte 100 LL oder Düsentreibstoff wie Jet A-1 oder Jet B, und
  • Diesel, insbesondere nach DIN EN 590, früher: DIN 51 601; sowie
• Öle, insbesondere
  • Heizöl, insbesondere leichtes und schweres und insbesondere gemäß DIN 51603,
  • Motorenöl, Getriebeöl, Hydrauliköl, Kettenöl, Schneidöl und Schmieröl.

In the context of the present invention, a mineral oil is a mineral oil fraction generally produced from petroleum and is preferably liquid to highly viscous at 25 ° C. and 1013 hPa. Mineral oils within the meaning of the invention are in particular

• Fuels, in particular
  • Petrol and in particular petrol according to DIN EN 228),
  • Kerosene and in particular aviation gasoline according to ASTM D910 grade 100 LL or jet fuel such as Jet A-1 or Jet B, and
  • Diesel, in particular according to DIN EN 590, formerly: DIN 51 601; such as
• Oils, in particular
  • Fuel oil, in particular light and heavy and in particular according to DIN 51603,
  • Engine oil, transmission oil, hydraulic oil, chain oil, cutting oil and lubricating oil.

Particularly preferred mineral oils are the so-called middle distillates which have a boiling range of from 180 to 360 ° C. under normal pressure (1013 mbar), in particular fuel oil EL according to DIN 51603 and diesel fuel according to DIN EN 590, fuel oil according to DIN 51601 part 1. mineral oil fraction Boiling range (at 1013 mbar) use LPG below 30 ° C Heating gas for industry and household petroleum ether 40 - 70 ° C Petrol, solvent benzine 60 - 100 ° C Production of benzene, production of gases by cracking, solvents means petrol 70 - 150 ° C Carburetor fuel (gasoline) solvent naphtha 120 - 180 ° C Fuel for jet aircraft, solvent Kerosene (petroleum) 150-280 ° C Jet fuel petrol solvent, light fuel oil gas oil 200 - 360 ° C Diesel fuel, heating oil Residue over 360 ° C By vacuum distillation: Production of motor oil, heavy fuel oil Rest: bitumen ("tar")

Mineral oil odor is understood to mean the odor which emanates from higher-boiling, unperfumed mineral-oil fractions such as fuel oil, diesel, gasoline, aviation gasoline, lubricating oil for engines or chains or cutting oil. This smell of mineral oil fractions (mineral oil odor), which is perceived as unpleasant by humans, is also referred to below as a bad smell or malodor.

Under masking (masking) of mineral oil odor understood the complete or partial covering of the mineral oil malodor, especially of fuels, heating or lubricating oils, by a fragrance or by a fragrance mixture, so that the sensory Malodoreindruck is reduced or covered. The masking, reducing or covering the mineral oil malodors has been found to be particularly difficult if the mineral oil is a heating oil, in particular a heating oil EL according to DIN 51603, a heating oil according to DIN 51601 part 1 and a diesel fuel according to DIN EN 590, so a share of at least 90% by weight and in particular of 95-99.9% by weight, based on the total mineral oil, of a heating oil EL according to DIN 51603, a heating oil according to DIN 51601 part 1 and / or a diesel fuel according to DIN EN 590.

Scenting or perfuming is understood to mean the imparting of an odor impression, here of mineral oils, i. an additional odor effect over the total or partial coverage of the odor of mineral oil fractions; the fragrance goes beyond mere masking.

A perfume is in the broader sense any substance that evokes an odor impression or changes the smell perception of another substance. In the narrower sense, in the context of this invention, a fragrance is a substance that causes an odor impression (in humans).

A fragrance mixture according to the invention is a mixture containing two or more fragrances in the narrower or broader sense.

Additives are additives, active ingredients or mixtures of active ingredients which enhance desired properties in fuels, fuels and lubricants, suppress undesirable properties or exert new effects. For example, in the case of fuels, the engine intake system can be kept clean and deposits in the engine can be prevented, or the resistance to aging can be extended in lubricating oils. Lowering pollutant emissions in the exhaust and preventing corrosion of metal parts in the fuel system are other desirable effects of additives.

Essential mineral oils according to the invention essentially contain no substances with a boiling point of less than 120 ° C. at 1013 mbar. Preference is given to mineral oils in which at least 90% by weight, particularly preferably at least 95% by weight, of the compounds contained therein have a boiling point in the range from 180 ° to 380 ° C. at 1013 mbar. Particularly preferred mineral oils are heating oil and diesel, in particular as indicated above.

Mineral oils preferred according to the invention have a water content of at most 1% by weight, preferably of at most 0.5% by weight.

The sulfur content in mineral oils according to the invention is preferably at most 500 mg / kg, preferably at most 200 mg / kg.

The proportion of mineral oil fractions according to the above table, in particular heavy fuel, kerosene and gas oil, to a mineral oil according to the invention is at least 90 wt .-%, particularly preferably 95 to 99.9% by weight, each based on the total mineral oil.

The odorization of gaseous fuels, such as methane, or under low pressure at 20 ° C in the liquid state transfer fuels, such as LPG (liquefied petroleum gas), by adding odor-intensive, acting as warning or alarm substances (odorants), is known and required by law in many states. Due to its high degree of purity these fuels are virtually odorless. If leaks are not detected in time, explosive gas / air mixtures with a high hazard potential build up quickly. For safety reasons, these fuels are therefore odorized by the addition of odorous substances. The odorants are also perceptible in high dilution and call due to their exceptionally unpleasant odor as desired, an alarm association in humans. An odorant must not only smell unpleasant and unmistakable, but above all clearly represent a warning smell.

In the context of the present invention, on the other hand, the fragrances or perfume mixtures should give the mineral oil fractions a pleasant odor or at least mask the malodor of the mineral oil fractions, a warning smell should not be imparted. The relevant in the context of the present invention mineral oil fractions are fundamentally different from the essentially odorless fuels such as methane or LPG by their characteristic odor. Furthermore, the mineral oil fractions which are relevant in the context of the present invention differ in their boiling point range or state of aggregation from the abovementioned fuels, so that the physicochemical interactions between the mineral oil fractions considered here and the fragrances or perfume mixtures incorporated therein and their release from the respective mineral oil fraction or whose masking properties are different with respect to the odor of the mineral oil fraction than with the abovementioned fuels.

In JP-A 55-104393 it is described that odorants (ie substances which should give the fuel gas a warning smell and no pleasant smell) containing an alkyne and at least 2 compounds selected from a group consisting of methyl acrylate, ethyl acrylate, methyl methacrylate, allyl methacrylate, ethyl propionate, methyl n-butyrate, Methyl isobutyrate and prenyl acrylate, and optionally tert-butylmercaptan, are suitable for the odorization of fuel gases. The amount of odorant is 50 ppm by weight (mg / kg gas), preferably greater than or equal to 100 ppm. The best results in LPG were obtained with mixtures comprising tert-butylmercaptan.

JP 59-185813 deals with the odor overlap of exhaust gases of a two-stroke engine. The solution shown there provides that the provided with an aromatic perfume lubricating oil is fed via a pump in the combustible fuel-air - mixture and the resulting mixture is introduced into the cylinder, wherein the provided with an aromatic perfume lubricating oil only partially burns. By remaining in the exhaust gas residual amount of perfume then the exhaust odor should be covered. Usual perfumes for use in cosmetic products, etc. are considered suitable, the amount of perfume used is about 1 wt .-%, based on the mass of the lubricating oil.

CN 1 049 176 describes the scenting of fuels such as LPG (Liquefied Petroleum Gas), gasoline and diesel by adding essences such as orange oil or jasmine oil, so that sweet smelling fuels are obtained. The proportion of essences is in the range of 0.5 to 5 wt .-%, based on the total mass of the fuels.

In JP 53-081634 is a mixture of odorous substances described, which causes petroleum-like solvents smell very unpleasant. This should prevent abuse of the same. These additives to unpleasant-smelling substances related to smell cause the opposite of what should be effected in the context of this invention.

EP 0 134 014 describes mineral oil compositions containing 2-70% terpenes, such as pinenes, cineole, limonene, dipentene, terpineols, menthol. Due to the high proportion of fragrances, the exhaust gases formed during the combustion of these mineral oil compositions should be given a more pleasant odor.

DE 1 037 668 describes kerosene containing steppe grass oil.

EP 1 591 514 describes hydrocarbon compositions containing tricyclododecanes or - dodecenes, such as cycloaddol acetate.

US 4,451,266 describes an additive for hydrocarbon mixtures such as gasoline or diesel, which in addition to an alcohol having at most four carbon atoms, an aromatic hydrocarbon, a halogenated alkene, a hydroxy acid and a hydrocarbon fraction of a certain boiling range also 5 to 15 wt.% Of an aliphatic ester comprising has at most 6 carbon atoms. Explicitly named esters are there: methyl acetate, ethyl acetate, propyl acetate, tert-butyl acetate, methyl propionate, ethyl propionate, methyl n-butyrate, isopropyl acetate, methyl isobutyrate and mixtures thereof, with acetates, in particular propyl acetate, being preferred.

Extenders for hydrocarbon fuels, which are heavier than gasoline (eg middle distillates), are used in US 4,353,710 described. Such Extenders are characterized by the presence of a methoxy or ethoxy group, especially from the class of ethers or esters. Representative examples of such extenders are methyl acetate, methyl propionate, methyl butyrate, ethyl acetate, ethyl propionate and ethyl butyrate. Typically, there is the proportion of said extenders 1 to 30 wt .-%, preferably 5 to 25 wt .-%, in particular by 20 wt .-%, based on the weight of the middle distillate.

WO 91/18961 describes esters having up to 25 C atoms, most preferably having 6 to 12 C atoms, as reodorants. Preferably, the acid there comprises 1 to 4 C atoms, more preferably there are C ₄ -C ₁₀ esters of acetic acid, for example n-heptyl acetate or a 1: 1 mixture of n-hexyl acetate and n-octyl acetate. Furthermore, it is generally stated that, in addition to these esters, reodorants may also contain aldehydes, ketones, alcohols, etc.

The use of amyl acetate for the deodorization of hydrocarbons, especially of petroleum, is out GB 10,772 known. It is recommended that a dosage of 10 g of amyl acetate to 1 L petroleum.

Aerosol compositions which preferably contain 20-60% by weight of a low molecular weight ketone such as acetone and 20-60% by weight of petroleum ether having a boiling range of 30-40 ° C are disclosed in US Pat GB 1 385 199 described. The aerosol compositions described therein preferably comprise, for the purpose of leak detection, a perfume which contains hexanoic acid allyl ester, ethylhexanoate, amyl acetate or furfurylmercaptan.

In our own experiments, it has been found that many alkanecarboxylic acid alkyl esters such as amyl acetate (n-pentyl acetate), ethyl acetate, n-butyl acetate or n-heptyl acetate have no satisfactory masking effect on mineral oil odor (see also the results summarized in Table 2) fragrances not to be used according to the invention). Also, compounds such as hexanoic acid allyl ester, benzyl acetate and ethyl vanillin did not show a sufficient masking effect.

Previous fragrance mixtures, which are aimed at improving the odor of mineral oil fractions, usually have an unsatisfactory odor coverage of the mineral oil and / or fuel oil odor. Furthermore, not a few of these fragrance mixtures, after incorporation into mineral oil fractions, especially in the presence of additives, produce strong discoloration under the action of (solar) light, tend to separate (segregate) and / or to cloud.

Previous perfumes, fragrance mixtures and additives, which are aimed at the revaluation of mineral oil fractions, usually have an unsatisfactory odor coverage of the mineral oil odor (malodors). Furthermore, some of these mixtures show strong discoloration of the additives when exposed to light.

• leichte Zugänglichkeit
• Einsetzbarkeit auch in konzentrierter Form, gegebenenfalls als Bestandteil eines Additivs
• weitgehende oder vollständige Farblosigkeit, auch in dem bzw. der Mineralölfraktionen und gegenüber gegebenenfalls zugesetzten Additiven
• gute Löslichkeit in Mineralölfraktionen
• hohe Stabilität in dem bzw. der geruchlich zu maskierenden und/oder zu beduftenden Mineralölfraktion, insbesondere soll keine Verfärbung und/oder Separation und/oder Trübung auftreten
• inertes Verhalten gegenüber dem bzw. den Mineralölfraktionen und gegenüber gegebenenfalls zugesetzten Additiven.

In view of the above-referenced prior art, it was the primary object of the present invention to provide alternative or improved perfume mixtures for masking mineral oil odor and / or scents of mineral oil fractions, especially middle distillates such as diesel or fuel oil. The fragrances should fulfill as many and preferably all of a number of requirements, in particular:

• easy accessibility
• Usability also in concentrated form, optionally as part of an additive
• extensive or complete colorlessness, even in the or of the mineral oil fractions and optionally added additives
• good solubility in mineral oil fractions
• high stability in the orally to be masked and / or scented mineral oil fraction, in particular no discoloration and / or separation and / or turbidity should occur
• inert behavior towards the mineral oil fractions and optionally added additives.

According to a first aspect, the stated object is achieved by a mineral oil, characterized in that the mineral oil has a proportion of 0.5 ppm to 1.2 wt .-%, based on the total mineral oil, on one or more fragrances which are selected from the group consisting of (A) number Surname 1 1,2,3,4,4a, 9,10,10a-octahydro-phenanthrene-1-carboxylic acid methyl ester; 7-Isopropyl-1,4a-dimethyl- 2 1,3,5-trioxane; 2,4,6-trimethyl 3 1,3-benzodioxolan-5-propanal; alpha-methyl 4 1,3-dioxane; 2,4,6-trimethyl-4-phenyl- 5 1,3-dioxolan-2-acetic acid ethyl ester; 2,4-dimethyl- 6 1,3-dioxolane 2-acetic acid ethyl ester; 2-methyl- 7 1,3-oxathiane; 2-methyl-4-propyl- (Z) 154 1,6-octadiene-3-ol; 3,7-dimethyl 8th 10-undecenal 9 1-Butanolacetat; 3-methyl 10 1-decanol 11 1H-4,7-methanoinden-5-olpropionat; 3a, 4,5,6,7,7a-hexahydro- 12 1-hexanol; 3,5,5-trimethyl 13 1-nonyne; 1,1-dimethoxy- 14 1-octanol 15 1-octen-3-ol acetate 16 2 (3H) -furanone; 4-hydroxy-2,5-dimethyl- 152 2 (3H) -furanone; 5-butyl-tetrahydro- 17 2 (3H) -furanone; 5-heptyl-dihydro- 18 2 (3H) -furanone; 5-hexyl-dihydro- 19 2 (3H) -furanone; Dihydro-5-pentyl- 20 2,2-dimethylpropanal; 3- (4-ethylphenyl) - 21 2,4-decadienal (2E, 4E) 22 2,6-nonadienal (2E, 6Z) 23 2,6-octadien-1-ol; 3,7-dimethyl- (2E) 24 2,6-octadiene-1-ol acetate; 3,7-dimethyl- (2E) 25 2,6-octadiene-1-ol acetate; 3,7-dimethyl- (2Z) 26 2,6-octadiene-1-olformiat; 3,7-dimethyl- (2E) 27 2,6-octadienal; 3,7-dimethyl- (2E) 150 2,6-octadienenitrile; 3,7-dimethyl- (2E) 149 2,6-octadienenitrile; 3,7-dimethyl- (2Z) 28 2-butanone; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) - 29 2-butene-1-ol acetate; 3-methyl 30 2-butene-1-one; 1- (2,6,6-trimethyl-1-cyclohexene-1-yl) - (E) 31 2-butene-1-one; 1- (2,6,6-trimethyl-3-cyclohexene-1-yl) - (E) 32 2-cyclopenten-1-one; 3-methyl-2- (2-pentenyl) - (Z) 33 2-Decenal (2E) 148 2H-1,5-benzodioxepin-3 (4H) -one; 7-methyl 34 2H-1-benzopyran-2-one 35 2-heptanol; 2,6-dimethyl 36 2-Hexenal (2E) 37 2H-pyran; 2-butyl-3,6-dihydro-4,6-dimethyl- 38 2-naphthalenol; 1,2,3,4,4a, 5,6,7-octahydro-2,6,6-trimethyl- 39 2-Nonenenitrile (2E) 40 2-octanol; 2,6-dimethyl 61 2-octanol; 2,6-dimethyl 41 2-octanone 42 2-pentenoic acid; 2-methyl- 43 2-phenylethanol 44 2-propen-1-ol; 3-phenyl- (E) 45 2-propenal; 2-methyl-3-phenyl- (E) 46 2-propenal; 3-phenyl- (E) 156 2-propenoate; 3-phenyl- (E) 47 2-Propensäurephenylmethylester; 3-phenyl 48 2-tridecenal (2E) 49 2-tridecenitrile (2Z) 50 3,6-Nonadiennitril; 3,7-dimethyl 51 3-buten-2-one; 1- (2,4,4-trimethyl-2-cyclohexene-1-yl) - (2E) 52 3-buten-2-one; 3-methyl-4- (2,6,6-trimethyl-2-cyclohexen-1-yl) - 53 3-buten-2-one; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) - 54 3-cyclohexene-1-carbaldehyde; 2,4,6-trimethyl 55 3-cyclohexene-1-carbaldehyde; 2,4-dimethyl- (Z) 56 3-cyclohexene-1-carbaldehyde; 3- (4-methyl-3-pentenyl) - 57 3-cyclohexen-1-carbaldehyde; 4- (4-hydroxy-4-methylpentyl) - 58 3-cyclohexene-1-methanol acetate; alpha, alpha, 4-trimethyl 59 3-hexene-1-ol (3E) 60 3-hexene-1-ol (3Z) 62 3-octanol; 3,7-dimethyl 63 4,7-methano-1H-indene-2,5-dimethanol; octahydro- 64 4-Decenal (4Z) 65 4H-4a, 9-Methanoazuleno [5,6-d] -1,3-dioxole; Octahydro-2,2,5,8,8,9a-hexamethyl 66 5,9-Undecadienal; 2,6,10-trimethyl 151 5-heptenal; 2,6-dimethyl 67 6-octene-1-ol; 3,7-dimethyl 68 6-octen-3-one; 2,4,4,7-tetramethyl 69 -Octenal 6; 3,7-dimethyl 70 6-octenonitrile; 3,7-dimethyl 71 7-octen-2-ol; 2,6-dimethyl 72 9-undecenal (9E) 73 9-undecenal (9Z) 74 9-undecenal; 2,6,10-trimethyl 75 Acetaldehyde; [(3,7-dimethyl-6-octenyl) oxy] - 76 benzaldehyde; 4- (1-methylethyl) - 77 benzaldehyde; 4-methyl- 78 Benzoic acid 2-methylpropyl ester; 2-hydroxy 79 Benzoic acid 3-methylbutyl 80 benzoate 81 benzoate; 2- (methylamino) - 82 Benzoic acid n-pentyl ester, 2-hydroxy 83 Benzoic acid, n-propyl 84 Benzene; (2,2-dimethoxyethyl) - 85 Benzene; 1- (1,1-dimethylethyl) -3,5-dimethyl-2,4,6-trinitro 86 Benzene; 1,1'-methylene bis 87 Benzene; 1,4-dimethoxy- 88 Bicyclo [2.2.1] heptane; 2,2-dimethyl-3-methylene 89 Bicyclo [2.2.1] heptane-2-ol; 1,3,3-trimethyl 90 Bicyclo [2.2.1] heptane-2-ol; 1,7,7-trimethyl 91 Bicyclo [3,1,1] hept-2-ene; 2,6,6-trimethyl 92 Butyric acid 2-phenylethyl ester; 3-methyl 93 Butyric acid-3-methylbutyl; 3-methyl 95 Buttersäurecyclohexylester 96 butyrate 97 butyrate; 2-methyl- 153 butyrate; 3-methyl 98 butyrate; 3-oxo 94 Butyl butyrate 99 quinoline; 6- (1-methylpropyl) - 100 Cyclohexanethanolacetat 101 cyclohexanol; 5-methyl-2- (1-methylethyl) - 102 cyclohexanol; 5-methyl-2- (1-methylethyl) - 103 Cyclohexanolacetat 104 Cyclohexanolacetat; 5-methyl-2- (1-methylethyl) - 105 cyclohexanone; 5-methyl-2- (1-methylethyl) - (iso) 106 cyclohexanone; 5-methyl-2- (1-methylethyl) - (L) 107 Cyclohexanepropionic acid 2-propenyl 108 Cyclohexene; 1-methyl-4- (1-methylethylidene) - 109 Cyclopentanessigsäuremethylester; 3-oxo-2-pentyl- (E) 110 decanal 111 decanal; 2-methyl- 112 dodecanal 113 Acetic acid 2-phenylethyl ester 114 Acetic acid 2-propenyl ester; (Cyclohexyloxy) - 115 Acetic acid 2-propenyl ester; 2- (3-methylbutoxy) - 116 Acetic acid 2-propenyl ester; phenoxy 117 ethanone; 1- (1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl) - 118 ethanone; 1- (2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a, 7-methano-azulen-5-yl) - 119 ethanone; 1- (2-naphthalenyl) - 120 ethanone; 1- (2-pyrazinyl) - 121 ethanone; 1- (4-Methylphenyl) - 122 Ethanthiosäure-S- [1- [2- (acetyloxy) ethyl] butyl] ester 123 heptanal 124 heptanoate 125 hexanal 126 hexanal; 3,5,5-trimethyl 127 Indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro- 128 Indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro-2,4-dimethyl- 129 methanone; diphenyl 130 nonanal 131 octanal 132 octanoate 155 pentanoate; 2-methyl- 133 Phenol; 2-methoxy-4- (2-propenyl) - 134 phenylacetaldehyde 135 phenylacetaldehyde; alpha-methyl 136 phenylacetonitrile; alpha-cyclohexylidene 137 Phenylacetic acid-2-methylpropyl 138 Phenylmethanolacetat; alpha-methyl 139 propanedioic 140 Propionic acid-2-phenoxyethyl; 2-methyl- 141 Propionsäurehexylester; 2-methyl- 142 pyrazine; 2-ethoxy-1- (1-methylethyl) - 143 pyridine; 2- (3-phenylpropyl) - 144 pyridine; 4- (4,8-dimethyl-3,7-nonadienyl) - 145 Thiobutyric-1-methylpropyl ester; 3-methyl 146 undecanal 147 undecanal; 2-Methyl-

The fragrances or fragrance mixtures of group (A) to be used according to the invention are preferably formulated in an additive and added to a mineral oil fraction or a mixture of several mineral oil fractions to form a mineral oil according to the invention. The fragrances of group (A) have a masking effect against unpleasant mineral oil odor and thus ensure a higher acceptance and nobler quality of these fragrances containing mineral oils. The fragrances of group (A) have a masking effect against unpleasant mineral oil odor, in particular against the malodor of diesel and heating oil. They are readily available, can also be used in concentrated form, largely or completely colorless, readily soluble in mineral oils and other mineral oil additive components, very stable in or of the odorous to be masked and / or scented mineral oils, in particular occurs no discoloration and / or Separation and / or turbidity, and cause the rest, no noticeable disturbing reactions with mineral oils or other common mineral oil additive ingredients.

• Fließverbesserer (Flow-Improver, Anti-Settling, z.B. beim Dieselkraftstoff Wachs Anti Settling Additives, WASA, beispielsweise Polyolefine, chlorierte Polyethylene, Ethylen/Propylen-Mischpolymerisate, niedermolekulare Copolymere wie Ethylen-VinylacetatCopolymere),
• Filtrierbarkeitsverbesserer (z.B, höhermolekulare chlorierte Kohlenwasserstoffe wie beispielsweise Kondensate von Naphthalin und chlorierten Paraffinen, Copolymerisate auf Basis von Ethylen mit jeweils Acryl- und Methacrylsäureestern, Maleinsäurediestern, Alkoholen oder Vinylacetat),
• Metalldeaktivatoren (zumeist Chelatbildner, z.B. 1,3-Bis-(2-hydroxybenzylidenamino)propan = N,N'-Disalicyliden-1,2-diaminopropan),
• Antioxidantien (Oxidationsinhibitoren, z.B. Phenolderivate wie p-Aminophenol, 2,6-Di-tert.-butyl-4-methylphenol (BHT), Phenylendiamin, Naphthalinderivate wie Naphthylamin, 1,3-Bis-(2-hydroxybenzylidenamino)propan),
• Korrosionsinhibitoren (z.B. Naphthensäure-Na-Salz, Mischungen von (2-Ethylhexyl)-(3-methylbutyl)phosphat und C₁₄-C₁₆-Aminen, 2-(2-(2-Ethylhexyl)-phenoxyl)-1,1,2,2-tetraethoxyethanol, Ethylendiamin-dinonylnaphthalinsulfonat, Mischungen von polymerisierter Linolsäure, polymerisierter Methyllinolsäure und organischen Phosphorverbindungen, Hydrazin, Ölsäureamide),
• Schaumverhinderer (Anti-Foam),
• Zündbeschleuniger (Cetanzahl-Verbesserer, z.B. Amylnitrat, Cyclohexylnitrat, 2-Ethylhexylnitrat, Nitrobenzol),
• Detergentien (z.B. Benzolsulfonsäure-Na-Salz, Alkyl substituierte Succinimide wie beispielsweise Polyisobutenyl-Bernsteinsäurederivate, Alkyl substituierte Carbamide, Polyisobutenamine / -polyamine, Amine),
• partikelreduzierende Stoffe,
• Stabilisatoren (insbesondere für Diesel und Heizöl) (beispielsweise langkettige oder cyclische Amine wie N,N-Dimethylcyclohexylamin),
• Antiklopfmittel (z.B. tert.-Butylalkohol, Isobutylalkohol, MTBE, ETBE, TAME, N-Methylanilin, Methanol),
• Zusätze gegen Vergaservereisung (Vereisungsinhibitor, z.B. Ethanol, Isopropanol, Dimethylformamid, Dimethylacetamid, Dipropylenglykol, Diethylenglykolmonomethylether, organische Phosphorverbindungen, Glycerinester von Fettsäuren, Formamide, Imidazoline),
• Rückstandsumwandler (Antipreignitionsstoffe, z.B. 1,2-Dibromethan, Kresyldiphenylphosphat, Trikresylphosphat, Trikresylphosphit, Trimethylphosphat, Trichlorethylphosphat, Borsäureester),
• Anti -Smoke (Abbrennhilfen, Mittel zur Verminderung der Rauchentwicklung, z.B. Bariumnaphthalinsulfonat, Bariumcarbonat, Bleinaphthenat, Tetraethylblei, Calciumsulfonat, Mangannaphthenat, Nickelcarbonyl, Methylcyclopentadienyl-Mangan-tricarbonyl, Ferrocen, Butylhydroperoxid, Nitropropan, Ethylnitrat),
• Biozide,
• Schmierfähigkeitsverbesserer (Lubricity improvers),
• Leitfähigkeitsverbesserer (Anti-static),
• Mittel zum Verschleissschutz,
• Farbstoffe,
• Farbstabilisatoren, und
• Viskositätsverbesserer.

Commercially available fuels or oils, such as diesel fuels or fuel oils, which comprise one or more fragrances of group (A) according to the invention, regularly contain conventional additives. A mineral oil according to the invention therefore preferably comprises in a total concentration of 0.001 to 2 vol.%, based on the total volume of the mineral oil, one or more further additive constituents selected from the group consisting of:

• Flow improvers (flow improvers, anti-settling, eg in the case of diesel fuel wax anti-settling additives, WASA, for example polyolefins, chlorinated polyethylenes, ethylene / propylene copolymers, low molecular weight copolymers such as ethylene-vinyl acetate copolymers),
• Filtrierbarkeitsverbesserer (eg, higher molecular weight chlorinated hydrocarbons such as condensates of naphthalene and chlorinated paraffins, copolymers based on ethylene with each acrylic and methacrylic acid esters, maleic diesters, alcohols or vinyl acetate),
• Metal deactivators (mostly chelating agents, eg 1,3-bis (2-hydroxybenzylideneamino) propane = N, N'-disalicylidene-1,2-diaminopropane),
• Antioxidants (oxidation inhibitors, eg phenol derivatives such as p-aminophenol, 2,6-di-tert-butyl-4-methylphenol (BHT), phenylenediamine, naphthalene derivatives such as naphthylamine, 1,3-bis (2-hydroxybenzylideneamino) propane),
• Corrosion inhibitors (eg naphthenic acid Na salt, mixtures of (2-ethylhexyl) - (3-methylbutyl) phosphate and C ₁₄ -C ₁₆ amines, 2- (2- (2-ethylhexyl) phenoxyl) -1,1, 2,2-tetraethoxyethanol, ethylenediamine dinonylnaphthalenesulfonate, mixtures of polymerized linoleic acid, polymerized methyl linoleic acid and organic phosphorus compounds, hydrazine, oleic acid amides),
• Foam inhibitor (anti-foam),
• Ignition accelerator (cetane number improver, eg, amyl nitrate, cyclohexyl nitrate, 2-ethylhexyl nitrate, nitrobenzene),
• Detergents (eg benzenesulfonic acid Na salt, alkyl-substituted succinimides such as, for example, polyisobutenyl succinic acid derivatives, alkyl-substituted carbamides, polyisobutene amines / polyamines, amines),
• particle-reducing substances,
• Stabilizers (in particular for diesel and heating oil) (for example long-chain or cyclic amines such as N, N-dimethylcyclohexylamine),
• Anti-knock agents (eg tert-butyl alcohol, isobutyl alcohol, MTBE, ETBE, TAME, N-methylaniline, methanol),
• Additives against carburetor icing (icing inhibitor, eg ethanol, isopropanol, dimethylformamide, dimethylacetamide, dipropylene glycol, diethylene glycol monomethyl ether, organic phosphorus compounds, glycerol esters of fatty acids, formamides, imidazolines),
• Residue converter (anti-repellent substances, eg 1,2-dibromoethane, cresyldiphenyl phosphate, tricresyl phosphate, tricresyl phosphite, trimethyl phosphate, trichloroethyl phosphate, boric acid ester),
• Anti-smoke (burning aids, smoke reduction agents, eg barium naphthalenesulfonate, barium carbonate, lead naphthenate, tetraethyl lead, calcium sulfonate, manganese naphthenate, nickel carbonyl, methylcyclopentadienyl manganese tricarbonyl, ferrocene, butyl hydroperoxide, nitropropane, ethyl nitrate),
• biocides,
• Lubricity improvers,
• Conductivity improvers (anti-static),
• Means for wear protection,
• dyes,
• Color stabilizers, and
• Viscosity improvers.

An additive contained in the mineral oil according to the invention, in particular heating oil, diesel or gasoline, or usable for producing a mineral oil according to the invention preferably comprises, in addition to one or more fragrances of group (A) at least one, preferably 2, 3, 4, 5, 6, 7 or all the following ingredients: flow improver (WASA), lubricity improvers, antioxidants, ignition accelerators, anti-smoke, metal deactivators (chelating agents), stabilizers, detergents.

• (L1) Isopropylmyristat, Benzylbenzoat, Diethylphthalat und deren Mischungen,
• (L2) Isododecan, n-Paraffine mit 9 bis 14 C-Atomen, iso-Paraffine mit 9 bis 14 C-Atomen, Naphthalin, Alkylnaphthaline (insbesondere Methylnaphthaline) und deren Mischungen.

For the production of an additive according to the invention or of a mineral oil according to the invention, it may be helpful, for reasons of simpler dosage or handling, to mix the fragrance or fragrances from group (A) with the additive or mineral oil in the form of a mixture with one or more solution or Add diluents. The solution or the Diluents must be compatible with the odoriferous or fragrances of group (A) and the additives or the mineral oil fractions used for the mineral oil according to the invention. Preferred solvents or diluents are substances from one of the following groups L1 and L2 or a mixture of substances from both groups L1 and L2, consisting of:

• (L1) isopropyl myristate, benzyl benzoate, diethyl phthalate and mixtures thereof,
• (L2) isododecane, n-paraffins having 9 to 14 carbon atoms, iso-paraffins having 9 to 14 carbon atoms, naphthalene, alkylnaphthalenes (especially methylnaphthalenes) and mixtures thereof.

Solvents of the group L2 are e.g. under the name Shellsol D60 or Shellsol D100 (defined mixtures of n- and iso-paraffins in the range of 9 to 14 C-atoms) or Shellsol T (mixture of iso-paraffins) commercially available.

A special requirement in the masking of mineral oil odor lies in the low dosage of the fragrance or the fragrance mixture in the respective mineral oil. The concentration of fragrances of group (A) is preferably 1 to 1000 ppm in total, preferably 10 to 500 ppm and more preferably 30 to 300 ppm in heating oil, diesel and gasoline and 0.01 to 2% by weight, preferably 0.1 - 2 wt .-% and particularly preferably 0.2 - 2 wt .-% of lubricating oils.

Advantageous in the context of the present invention are mineral oils and additives having a number of at most 100 fragrances which furthermore preferably comprise at most 80 fragrances of group (A) to be used according to the invention or consist of fragrances of group (A). Preferred mineral oils and additives comprise at most 60 fragrances, which further preferably at most 50 according to the invention odiferous substances of group (A) to be used or consist of odoriferous substances of group (A). Particularly preferred mineral oils and additives comprise at most 30 fragrances which furthermore preferably comprise 3 to 30 fragrances of group (A) to be used according to the invention or consist of fragrances of group (A).

The investigations carried out in the context of the present invention showed that fuel oil and lubricating oil are masked by a large number of substances structurally strongly differing from this material. This was in the face of US 5,538,719 not expected, since according to the teaching there structurally similar compounds to a mutual odor masking by cross-adaptation (cross-adaptation) to effect.

However, it has now been found that of the fragrances of group (A), the fragrances of the following group (B) are particularly suitable for reducing, masking or suppressing the malodor of a mineral oil: number Surname 2 1,3,5-trioxane; 2,4,6-trimethyl 154 1,6-octadiene-3-ol; 3,7-dimethyl 9 1-Butanolacetat; 3-methyl 16 2 (3H) -furanone; 4-hydroxy-2,5-dimethyl- 152 2 (3H) -furanone; 5-butyl-tetrahydro- 19 2 (3H) -furanone; Dihydro-5-pentyl- 23 2,6-octadiene-1-ol; 3,7-dimethyl- (2E) 27 2,6-octadienal; 3,7-dimethyl- (2E) 150 2,6-octadienenitrile; 3,7-dimethyl- (2E) 149 2,6-octadienenitrile; 3,7-dimethyl- (2Z) 30 2-butene-1-one; 1- (2,6,6-trimethyl-1-cyclohexene-1-yl) - (E) 148 2H-1,5-benzodioxepin-3 (4H) -one; 7-methyl 36 2-Hexenal (2E) 156 2-propenoate; 3-phenyl- (E) 151 5-heptenal; 2,6-dimethyl 67 6-octene-1-ol; 3,7-dimethyl 69 6-octenal; 3,7-dimethyl 70 6-octenonitrile; 3,7-dimethyl 75 Acetaldehyde; [(3,7-dimethyl-6-octenyl) oxy] - 77 benzaldehyde; 4-methyl- 84 Benzene; (2,2-dimethoxyethyl) - 153 butyrate; 3-methyl 103 Cyclohexanolacetat 106 cyclohexanone; 5-methyl-2- (1-methylethyl) - (L) 107 Cyclohexanepropionic acid 2-propenyl 110 decanal 116 Acetic acid 2-propenyl ester; phenoxy 117 ethanone; 1- (1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl) - 120 ethanone; 1- (2-pyrazinyl) - 121 ethanone; 1- (4-Methylphenyl) - 123 heptanal 155 pentanoate; 2-methyl- 145 Thiobutyric-1-methylpropyl ester; 3-methyl

These group (A) fragrances group (B), as shown below, have the strongest effect of reducing, masking or suppressing the mineral oil malodor. They are therefore preferred in used mineral oils of the invention, especially in diesel and fuel oil. Particularly preferably, a corresponding mineral oil contains two, three, four, five or more, preferably not more than 25, fragrances of group (B).

Also preferred is a mineral oil according to the invention which contains one or more fragrances of the group (A) of the fragrances of group (A): number Surname 4 1,3-dioxane; 2,4,6-trimethyl-4-phenyl- 5 1,3-dioxolan-2-acetic acid ethyl ester; 2,4-dimethyl- 7 1,3-oxathiane; 2-methyl-4-propyl- (Z) 13 1-nonyne; 1,1-dimethoxy- 14 1-octanol 18 2 (3H) -furanone; 5-hexyl-dihydro- 20 2,2-dimethylpropanal; 3- (4-ethylphenyl) - 21 2,4-decadienal (2E, 4E) 22 2,6-nonadienal (2E, 6Z) 26 2,6-octadiene-1-olformiat; 3,7-dimethyl- (2E) 29 2-butene-1-ol acetate; 3-methyl 31 2-butene-1-one; 1- (2,6,6-trimethyl-3-cyclohexene-1-yl) - (E) 33 2-Decenal (2E) 37 2H-pyran; 2-butyl-3,6-dihydro-4,6-dimethyl- 38 2-naphthalenol; 1,2,3,4,4a, 5,6,7-octahydro-2,6,6-trimethyl- 39 2-Nonenenitrile (2E) 48 2-tridecenal (2E) 49 2-tridecenitrile (2Z) 50 3,6-Nonadiennitril; 3,7-dimethyl 52 3-buten-2-one; 3-methyl-4- (2,6,6-trimethyl-2-cyclohexen-1-yl) - 54 3-cyclohexene-1-carbaldehyde; 2,4,6-trimethyl 55 3-cyclohexene-1-carbaldehyde; 2,4-dimethyl- (Z) 59 3-hexene-1-ol (3E) 60 3-hexene-1-ol (3Z) 62 3-octanol; 3,7-dimethyl 64 4-Decenal (4Z) 65 4H-4a, 9-Methanoazuleno [5,6-d] -1,3-dioxole; Octahydro-2,2,5,8,8,9a-hexamethyl 72 9-undecenal (9E) 73 9-undecenal (9Z) 74 9-undecenal; 2,6,10-trimethyl 76 benzaldehyde; 4- (1-methylethyl) - 89 Bicyclo [2.2.1] heptane-2-ol; 1,3,3-trimethyl 90 Bicyclo [2.2.1] heptane-2-ol; 1,7,7-trimethyl 91 Bicyclo [3,1,1] hept-2-ene; 2,6,6-trimethyl 95 Buttersäurecyclohexylester 96 butyrate 97 butyrate; 2-methyl- 99 quinoline; 6- (1-methylpropyl) - 105 cyclohexanone; 5-methyl-2- (1-methylethyl) - (iso) 111 decanal; 2-methyl- 112 dodecanal 114 Acetic acid 2-propenyl ester; (Cyclohexyloxy) - 115 Acetic acid 2-propenyl ester; 2- (3-methylbutoxy) - 122 Ethanthiosäure-S- [1- [2- (acetyloxy) ethyl] butyl] ester 124 heptanoate 125 hexanal 126 hexanal; 3,5,5-trimethyl 130 nonanal 131 octanal 133 Phenol; 2-methoxy-4- (2-propenyl) - 134 phenylacetaldehyde 135 phenylacetaldehyde; alpha-methyl 142 pyrazine; 2-ethoxy-1- (1-methylethyl) - 143 pyridine; 2- (3-phenylpropyl) - 144 pyridine; 4- (4,8-dimethyl-3,7-nonadienyl) - 146 undecanal 147 undecanal; 2-methyl-

These fragrances of the group (C), in addition to a good Malodorreduktionswert (more below) also have a strong and pleasant odor, which can contribute to improving the acceptance of a mineral oil according to the invention. Accordingly, preferred is a corresponding mineral oil containing two, three, four, five or more, preferably not more than 25, fragrances of group (C).

The fragrances of Groups (B) and (C), especially in combination, exhibit a particularly good effect of improving the odor of a mineral oil and reducing, masking or suppressing the malodour of a mineral oil. Preferably, therefore, a mineral oil according to the invention contains at least one, preferably two, three, four, five or more, and further preferably up to 25 fragrances of group (B) and at least one, preferably two, three, four, five or more and further preferably up to 25 fragrances of the group (C).

Further preferred is a mineral oil, which in addition to the one or more fragrances of group (B) and / or (C) additionally contains one or more of the fragrances of the following group (D): number Surname 1 1,2,3,4,4a, 9,10,10a-octahydro-phenanthrene-1-carboxylic acid methyl ester; 7-Isopropyl-1,4a-dimethyl- 3 1,3-benzodioxolan-5-propanal; alpha-methyl 6 1,3-dioxolan-2-acetic acid ethyl ester; 2-methyl- 8th 10-undecenal 10 1-decanol 11 1H-4,7-methanoinden-5-olpropionat; 3a, 4,5,6,7,7a-hexahydro- 12 1-hexanol; 3,5,5-trimethyl 15 1-octen-3-ol acetate 17 2 (3H) -furanone; 5-heptyl-dihydro- 24 2,6-octadiene-1-ol acetate; 3,7-dimethyl- (2E) 25 2,6-octadiene-1-ol acetate; 3,7-dimethyl- (2Z) 28 2-butanone; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) - 32 2-cyclopenten-1-one; 3-methyl-2- (2-pentenyl) - (Z) 34 2H-1-benzopyran-2-one 35 2-heptanol; 2,6-dimethyl 40 2-octanol; 2,6-dimethyl 61 2-octanol; 2,6-dimethyl 41 2-octanone 42 2-pentenoic acid; 2-methyl- 43 2-phenylethanol 44 2-propen-1-ol; 3-phenyl- (E) 45 2-propenal; 2-methyl-3-phenyl- (E) 46 2-propenal; 3-phenyl- (E) 47 2-Propensäurephenylmethylester; 3-phenyl 51 3-buten-2-one; 1- (2,4,4-trimethyl-2-cyclohexene-1-yl) - (2E) 53 3-buten-2-one; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) - 56 3-cyclohexene-1-carbaldehyde; 3- (4-methyl-3-pentenyl) - 57 3-cyclohexene-1-carbaldehyde; 4- (4-hydroxy-4-methylpentyl) - 58 3-cyclohexene-1-methanol acetate; alpha, alpha, 4-trimethyl 63 4,7-methano-1H-indene-2,5-dimethanol; octahydro- 66 5,9-Undecadienal; 2,6,10-trimethyl 68 6-octen-3-one; 2,4,4,7-tetramethyl 71 7-octen-2-ol; 2,6-dimethyl 78 Benzoic acid 2-methylpropyl ester; 2-hydroxy 79 Benzoic acid 3-methylbutyl 80 benzoate 81 benzoate; 2- (methylamino) - 82 Benzoic acid n-pentyl ester, 2-hydroxy 83 Benzoic acid, n-propyl 85 Benzene; 1- (1,1-dimethylethyl) -3,5-dimethyl-2,4,6-trinitro 86 Benzene; 1,1'-methylene bis 87 Benzene; 1,4-dimethoxy- 88 Bicyclo [2.2.1] heptane; 2,2-dimethyl-3-methylene 92 Butyric acid 2-phenylethyl ester; 3-methyl 93 Butyric acid-3-methylbutyl; 3-methyl 98 butyrate; 3-oxo 94 Butyl butyrate 100 Cyclohexanethanolacetat 101 cyclohexanol; 5-methyl-2- (1-methylethyl) - 102 cyclohexanol; 5-methyl-2- (1-methylethyl) - 104 Cyclohexanolacetat; 5-methyl-2- (1-methylethyl) - 108 Cyclohexene; 1-methyl-4- (1-methylethylidene) - 109 Cyclopentanessigsäuremethylester; 3-oxo-2-pentyl- (E) 113 Acetic acid 2-phenylethyl ester 118 ethanone; 1- (2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a, 7-methano-azulen-5-yl) - 119 ethanone; 1- (2-naphthalenyl) - 127 Indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro- 128 Indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro-2,4-dimethyl- 129 methanone; diphenyl 132 octanoate 136 phenylacetonitrile; alpha-cyclohexylidene 137 Phenylacetic acid-2-methylpropyl 138 Phenylmethanolacetat; alpha-methyl 139 propanedioic 140 Propionic acid-2-phenoxyethyl; 2-methyl- 141 Propionsäurehexylester; 2-methyl-

• zumindest einen, vorzugsweise zwei, drei, vier, fünf oder mehr und Riechstoffe der Gruppe (B) und/oder (C), und
• zumindest einen, vorzugsweise zwei, drei, vier, fünf oder mehr und ferner bevorzugt bis zu 25 Riechstoffe der Gruppe (D).

These fragrances also have a good Malodorreduktionswert and are also characterized by the fact that they round off in mineral oils caused by the fragrances of the groups (B) and / or (C) smell harmoniously. Preferably, therefore, contains a mineral oil according to the invention

• at least one, preferably two, three, four, five or more and fragrances of group (B) and / or (C), and
• at least one, preferably two, three, four, five or more, and further preferably up to 25 fragrances of group (D).

Preferably, the proportion of the total mass of fragrances of group (A) in additives of the invention from 0.5 to 80 wt .-%, preferably 2 to 50 wt .-%, preferably 3 to 30 wt .-%, each based on the total weight of the additive.

For technical reasons, it is often desirable to use only a small number of effective against unpleasant smell of mineral odor odorants. Therefore, it is preferable that the number of the fragrances of the group (A), particularly the group (B), (C) and / or (D), in a mineral oil or additive of the invention is from 2 to 50, more preferably a number Fragrances of 3 to 30 to be used according to the invention, in each case based on the total mixture of the fragrances of group (A) in the mineral oil or additive.

For perfumery and hedonistic reasons, it is often necessary to additionally use a, in the present case low, proportion of odorants which are less active against mineral oil odor. Therefore, in addition to the fragrances of group (A), in particular of groups (B), (C) and / or (D), additional fragrances in the mineral oil or additive may additionally be present. Overall, however, as described above, the total number of fragrances in a mineral oil according to the invention should not be more than 100.

The above-described preferably low dosage of fragrances in mineral oils according to the invention requires particularly effective fragrances and fragrance mixtures, therefore these should preferably be composed of a not too large number of particularly effective fragrances. In particular, the possibility of discoloring an additive poses a difficulty. These discolorations can be triggered, for example, by an excessive concentration of vanillin, ethyl vanillin, maltol and / or ethyl maltol in the perfuming. Vanillin is effective against the unpleasant smell of mineral oil, but can lead to strong discoloration in the additive. Vanillin, ethyl vanillin, maltol and / or ethyl maltol Therefore, they should only be present in minimal amounts in an additive for malodormaskierung, -erringerung or -unterdrückung or completely absent.

A mineral oil or additive according to the invention preferably comprises at least one, two or more, preferably no more than ten, other fragrances (which are therefore not part of the fragrances of group (A) to be used according to the invention) having a vapor pressure of greater than or equal to 0.1 Pa 25 ° C, preferably with a vapor pressure of greater than or equal to 0.5 Pa at 25 ° C, more preferably with a vapor pressure of greater than or equal to 1 Pa at 25 ° C.

Examples of further fragrances which may be part of an additive according to the invention or of a mineral oil according to the invention can be found, for example, in US Pat S. Arctander, Perfume and Flavor Chemicals, Vol. I and II, Montclair, NJ, 1969 , Self-published or K. Bauer, D. Garbe and H. Surburg, Common Fragrance and Flavor Materials, 4th. Ed., Wiley-VCH, Weinheim 2001 ,

Since essential oils generally comprise a large number (often far more than 100 compounds) of fragrances which in part do not mask any (significant) malodor due to their low content in the essential oil, the total proportion of essential oils in mineral oils and additives according to the invention is preferably at the highest 25 wt .-%, preferably at most 15 wt .-%, more preferably at most 7 wt .-%, based on the total amount of fragrances of group (A) in the mineral oil or additive. In a particularly preferred embodiment, additives according to the invention and mineral oil fractions are free of essential oils, especially since essential oils can partly lead to discoloration, separation and / or clouding in additives according to the invention and mineral oil fractions.

A mineral oil or additive according to the invention which comprises a total fraction of less than 8% by weight of vanillin, ethylvanillin, maltol and / or ethylmaltol, based on the total mass of the fragrances of group (A), is advantageous. Preference is given to a mineral oil or additive according to the invention which comprises a total proportion of less than 4% by weight, particularly preferably less than 1.5% by weight, of vanillin, ethyl vanillin, maltol and / or ethyl maltol on the total mass of the fragrances of the group (A). These limitations apply in particular to heating oil and diesel.

Particularly advantageous is an inventive mineral oil or additive with a proportion of less than 8 wt .-% of vanillin based on the total amount of fragrances of group (A). Preference is given to a mineral oil and additive according to the invention which has a proportion of less than 4% by weight and more preferably less than 1.5% by weight of vanillin, based on the total amount of fragrances of group (A) in the mineral oil or Additive includes. These limitations apply in particular to heating oil and diesel.

By using mixtures of the specified fragrances of group (A) and especially groups (B) and (C), a product can be perfumed so that a faint fragrance is perceived, but at the same time the presence of the unpleasant odor of mineral oil fractions is suppressed , Strong high intensity perfuming is not necessary to achieve the desired effect.

To mask the unpleasant smell of mineral oil, perfumes and fragrance compositions are occasionally used. The development of such fragrance compositions and the checking of their effectiveness for masking the mineral oil smell has hitherto been carried out by trial and error. Typically, a sample of a fragrance or perfume mixture to be tested for its ability to mask mineral oil odor (masking sample) is mixed with a sample of the mineral oil fraction to be masked (Malodor standard) and the resulting odor impression determined olfactorily by a panel of testers. Accordingly, the development of a fragrance masking odor odor or a fragrance mixture is currently consuming.

1. a) Herstellen einer Malodorstandard-Mischung enthaltend Mineralöl in einem geruchlosen Trägergas,
2. b) Herstellen einer Testmischung enthaltend eine Mineralölfraktion und eine Testprobe in dem Trägergas, und
3. c) Bestimmen der Gesamtintensität und/oder des Malodoreindrucks der Malodorstandard-Mischung im Vergleich zur Testmischung.

The present invention therefore also provides a test method for checking the masking of mineral oil odor by a test sample with one or more fragrances, comprising the steps:

1. a) preparing a malodor standard mixture containing mineral oil in an odorless carrier gas,
2. b) preparing a test mixture containing a mineral oil fraction and a test sample in the carrier gas, and
3. c) Determining the total intensity and / or the malodorous impression of the malodor standard mixture in comparison to the test mixture.

The intensity of a substance or substance mixture describes the intensity of the mixture perceived by trained examiners as odorless or odor, regardless of the quality of the odor. The stronger a substance or substance mixture smells, the higher the value for the intensity. The intensity is rated here on a scale of 1 to 9. The value 1 means odorless, 9 means very strong smelling. The malodorous impression in turn describes the intensity of the perceived bad smell. The term malodor reduction value in the present case describes the intensity difference, i. the difference, bad odor (malodor) of the malodor standard mixture and the test mixture.

Preferably, the test method is carried out at 20 ° C and 1013 mbar. It is likewise preferred if the concentration of heating oil in the malodor standard mixture and the test mixture is the same. This allows a particularly good comparison of the mixtures.

The test sample according to the invention preferably comprises one or more fragrances. In this way, more complex fragrance mixtures such as chords of fragrances and essential oils can be checked for their suitability for masking mineral oil odor.

To carry out the test method according to the invention, a defined amount of a mineral oil fraction is preferably used.

In addition, it is preferred if, for carrying out the test method according to the invention, the concentration of the malodor standard heating oil in the test and / or malodor standard mixture is at least 0.1 μl / l, preferably 0.1 to 1 μl / l and particularly preferably 0.3 to 0.8 μl / l. At these concentrations, the Bad odor of Malodor standards already clearly perceptible, but without the olfactory sense of an examiner is largely blocked by the malodor standard. This concentration does not affect the cognitive ability or well-being of the examiners even if many (10-30) samples are evaluated promptly. These concentrations can be adjusted particularly easily by evaporating 5 .mu.l of the mineral oil fraction to be investigated in 7 l of air.

The test method is particularly preferably carried out by testing the individual test samples in the suitability for covering the mineral oil odor in vessels of the same size. The individual samples are evaluated in each case by at least 8 examiners (experts) by smelling compared to a sample only with the mineral oil fraction (malodor standard). This malodor standard without fragrance gets the intensity 6 specified. The evaluation of the odor intensities is carried out on a scale from 1 according to "odorless" to 9 corresponding to "very strong". The reduction value is calculated by subtracting the intensity of the standard from the mean odor intensity of the malodor. The examiners are chosen for their ability to reproducibly evaluate the strengths of odors. The examiners are trained before the test series on the recognition of mineral oil odor.

As an alternative to the test method just described, the fragrance to be tested or the fragrance mixture to be tested is incorporated in a concentration of 50 ppm in the relevant mineral oil fraction.

At room temperature (about 20 ° C.), in two separate glasses or beakers (volume 200 ml each), on the one hand, 20 μl of the relevant mineral oil fraction (reference sample) and 20 μl of the relevant mineral oil fraction containing 50 ppm of the fragrance or perfume mixture to be investigated are introduced ( usually pipetted centered on the bottom of the glass or beaker pipetted). Both glasses or cups are evaluated by six trained examiners in a direct comparison after 1 minute odor.

• 1 = kein Unterschied zur Referenzprobe
• 2 = geringfügiger Unterschied zur Referenzprobe
• 3 = erkennbarer Unterschied zur Referenzprobe
• 4 = deutlicher Unterschied zur Referenzprobe
• 5 = deutlicher Unterschied zur Referenzprobe, Riechstoff(mischung) ist erkennbar
• 6 = deutlicher Unterschied zur Referenzprobe, Riechstoff(mischung) ist deutlich erkennbar

The odor assessment in both cases is based on the following rating scale of 1-6:

• 1 = no difference to the reference sample
• 2 = slight difference to the reference sample
• 3 = discernible difference to the reference sample
• 4 = significant difference to the reference sample
• 5 = clear difference to the reference sample, perfume (mixture) is recognizable
• 6 = clear difference to the reference sample, perfume (mixture) is clearly visible

The fragrances or perfume mixtures to be used according to the invention and the test sample containing one or more fragrances according to the invention can be combined with perfume oils in particularly preferred embodiments of the invention.

1. a) Auswählen einer Testmischung wie zuvor erfindungsgemäß beschrieben,
2. b) Zubereiten des Additivs enthaltend den oder die Riechstoffe der ausgewählten Testmischung in einer zum Maskieren von Mineralöl ausreichenden Konzentration.

Accordingly, a method for producing a mineral oil odor masking additive is also given according to the invention, comprising the steps:

1. a) selecting a test mixture as described above according to the invention,
2. b) preparing the additive containing the perfume (s) of the selected test mixture in a concentration sufficient to mask mineral oil.

In addition, according to the invention a mineral oil odor masking additive is specified, prepared by a production process according to the invention.

Fragrances of group (A) to be used according to the invention or a fragrance mixture to be used according to the invention comprising 2, 3, 4, 5, 6, 7, 8, 9, 10 or more fragrances of group (A) have a malodor reduction value of greater than or equal to 2.3 on.

Preferred fragrances of group (A) to be used according to the invention or a fragrance mixture to be used according to the invention comprising 2, 3, 4, 5, 6, 7, 8, 9, 10 or more fragrances of group (A) have a Malodorreduktionswert of greater or equal 3.0, more preferably a malodor reduction value of greater than or equal to 3.5.

Examples Example 1: 1. Selection and training of examiners

• A. The inspectors must be able to distinguish the smell of heating oil from an odorless solvent (dipropylene glycol = DPG).
  For this purpose, several smelling strips of cardboard are dipped in heating oil. In addition, several scented strips are dipped in DPG. Only those examiners who are able to differentiate between the smelling strips in a test fuel oil - heating oil - DPG and DPG - DPG - heating oil without error will take part in further tests.
• B. Thereafter, several concentrations of fuel oil are placed in a defined airspace. The samples are analyzed by the examiners for intensity, i. H. Odor strength, sorted. The order of concentrations must be properly recognized and evaluated by the examiners. Examiners who have passed both tests may take part in the raw material test described below.

3. Raw material test against mineral oil odor in diesel or heating oil

The fragrances investigated are individual fragrances (in individual cases, these may also be mixtures of (E) and (Z) isomers or of stereoisomers). The fragrances are evaluated by the selected examiners in a defined gaseous sample with regard to intensity and residual odor strength of the diesel or heating oil.

Not all fragrances are equally soluble in mineral oil fractions. Therefore, 30 μl fragrance and 150 μl each of the diesel or fuel oil are mixed for sample preparation. From the oil phase, place 6 μl in an air-filled 7 l volume container. The samples are held at room temperature (about 20 ° C) for 15 hours prior to evaluation. The individual samples are each smelled by at least 8 examiners compared to a sample containing only 5 μl of diesel or fuel oil. From the obtained at least 8 values for the respective raw material then the mean value is formed.

With regard to the terms used and the rating scale, reference is made to the definitions and explanations detailed above.

It has been found that Solutol A (2- (2-ethoxyethoxy) ethanol) and dipropylene glycol (DPG) have no influence on the intensity of the bad odor or the overall intensity. Thus, these solvents can be used as placeholders for application examples for the remaining parts of a perfume not examined here. The fragrances of group (A) listed in Table 1 showed very similar results for diesel or heating oil. <u> Table 1 </ u>: Malodor reduction values of Group (A) raw materials to be used in the present invention No. reduction value Surname 1 3.0 1,2,3,4,4a, 9,10,1 0a-octahydro-phenanthrene-1-carboxylic acid methyl ester; 7-Isopropyl-1,4a-dimethyl- 2 3.6 1,3,5-trioxane; 2,4,6-trimethyl 3 2.6 1,3-benzodioxolan-5-propanal; alpha-methyl 4 2.5 1,3-dioxane; 2,4,6-trimethyl-4-phenyl- 5 3.2 1,3-dioxolan-2-acetic acid ethyl ester; 2,4-dimethyl- 6 3.5 1,3-dioxolan-2-acetic acid ethyl ester; 2-methyl- 7 2.7 1,3-oxathiane; 2-methyl-4-propyl- (Z) 8th 3.4 10-undecenal 9 3.9 1-Butanolacetat; 3-methyl 10 2.4 1-decanol 11 2.5 1H-4,7-methanoinden-5-olpropionat; 3a, 4,5,6,7,7a-hexahydro- 12 2.7 1-hexanol; 3,5,5-trimethyl 13 2.9 1-nonyne; 1,1-dimethoxy- 14 2.7 1-octanol 15 2.8 1-octen-3-ol acetate 16 3.9 2 (3H) -furanone; 4-hydroxy-2,5-dimethyl- 17 3.2 2 (3H) -furanone; 5-heptyl-dihydro- 18 3.3 2 (3H) -furanone; 5-hexyl-dihydro- 19 4.0 2 (3H) -furanone; Dihydro-5-pentyl- 20 2.7 2,2-dimethylpropanal; 3- (4-ethylphenyl) - 21 2.3 2,4-decadienal (2E, 4E) 22 3.5 2,6-nonadienal (2E, 6Z) 23 4.5 2,6-octadiene-1-ol; 3,7-dimethyl- (2E) 24 2.3 2,6-octadiene-1-ol acetate; 3,7-dimethyl- (2E) 25 2.3 2,6-octadiene-1-ol acetate; 3,7-dimethyl- (2Z) 26 2.5 2,6-octadiene-1-olformiat; 3,7-dimethyl- (2E) 27 3.8 2,6-octadienal; 3,7-dimethyl- (2E) 28 3.5 2-butanone; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) - 29 2.4 2-butene-1-ol acetate; 3-methyl 30 4.2 2-butene-1-one; 1- (2,6,6-trimethyl-1-cyclohexene-1-yl) - (E) 31 3.4 2-butene-1-one; 1- (2,6,6-trimethyl-3-cyclohexene-1-yl) - (E) 32 2.9 2-cyclopenten-1-one; 3-methyl-2- (2-pentenyl) - (Z) 33 2.9 2-Decenal (2E) 34 2.9 2H-1-benzopyran-2-one 35 2.3 2-heptanol; 2,6-dimethyl 36 4.0 2-Hexenal (2E) 37 2.3 2H-pyran; 2-butyl-3,6-dihydro-4,6-dimethyl- 38 3.3 2-naphthalenol; 1,2,3,4,4a, 5,6,7-octahydro-2,6,6-trimethyl- 39 2.9 2-Nonenenitrile (2E) 40 2.6 2-octanol; 2,6-dimethyl 41 2.5 2-octanone 42 2.7 2-pentenoic acid; 2-methyl- 43 2.9 2-phenylethanol 44 2.9 2-propen-1-ol; 3-phenyl- (E) 45 2.4 2-propenal; 2-methyl-3-phenyl- (E) 46 2.8 2-propenal; 3-phenyl- (E) 47 2.9 2-Propensäurephenylmethylester; 3-phenyl 48 3.4 2-tridecenal (2E) 49 3.0 2-tridecenitrile (2Z) 50 3.2 3,6-Nonadiennitril; 3,7-dimethyl 51 3.4 3-buten-2-one; 1- (2,4,4-trimethyl-2-cyclohexene-1-yl) - (2E) 52 3.5 3-buten-2-one; 3-methyl-4- (2,6,6-trimethyl-2-cyclohexen-1-yl) - 53 2.7 3-buten-2-one; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) - 54 2.3 3-cyclohexene-1-carbaldehyde; 2,4,6-trimethyl 55 3.4 3-cyclohexene-1-carbaldehyde; 2,4-dimethyl- (Z) 56 2.3 3-cyclohexene-1-carbaldehyde; 3- (4-methyl-3-pentenyl) - 57 2.4 3-cyclohexene-1-carbaldehyde; 4- (4-hydroxy-4-methylpentyl) - 58 2.3 3-cyclohexene-1-methanol acetate; alpha, alpha, 4-trimethyl 59 3.3 3-hexene-1-ol (3E) 60 2.9 3-hexene-1-ol (3Z) 61 3.6 2-octanol; 2,6-dimethyl 62 3.0 3-octanol; 3,7-dimethyl 63 3.0 4,7-methano-1H-indene-2,5-dimethanol; octahydro- 64 3.2 4-Decenal (4Z) 65 2.5 4H-4a, 9-Methanoazuleno [5,6-d] -1,3-dioxole; Octahydro-2,2,5,8,8,9a-hexamethyl 66 3.5 5,9-Undecadienal; 2,6,10-trimethyl 67 4.4 6-octene-1-ol; 3,7-dimethyl 68 3.3 6-octen-3-one; 2,4,4,7-tetramethyl 69 4.7 6-octenal; 3,7-dimethyl 70 4.0 6-octenonitrile; 3,7-dimethyl 71 3.2 7-octen-2-ol; 2,6-dimethyl 72 3.2 9-undecenal (9E) 73 3.3 9-undecenal (9Z) 74 2.9 9-undecenal; 2,6,10-trimethyl 75 3.9 Acetaldehyde; [(3,7-dimethyl-6-octenyl) oxy] - 76 3.5 benzaldehyde; 4- (1-methylethyl) - 77 4.9 benzaldehyde; 4-methyl- 78 3.2 Benzoic acid 2-methylpropyl ester; 2-hydroxy 79 2.9 Benzoic acid 3-methylbutyl 80 3.5 benzoate 81 3.3 benzoate; 2- (methylamino) - 82 2.3 Benzoic acid n-pentyl ester, 2-hydroxy 83 2.7 Benzoic acid, n-propyl 84 3.8 Benzene; (2,2-dimethoxyethyl) - 85 3.5 Benzene; 1- (1,1-dimethylethyl) -3,5-dimethyl-2,4,6-trinitro 86 2.5 Benzene; 1,1'-methylene bis 87 3.2 Benzene; 1,4-dimethoxy- 88 2.5 Bicyclo [2.2.1] heptane; 2,2-dimethyl-3-methylene 89 2.3 Bicyclo [2.2.1] heptane-2-ol; 1,3,3-trimethyl 90 2.9 Bicyclo [2.2.1] heptane-2-ol; 1,7,7-trimethyl 91 2.7 Bicyclo [3,1,1] hept-2-ene; 2,6,6-trimethyl 92 3.2 Butyric acid 2-phenylethyl ester; 3-methyl 93 2.5 Butyric acid-3-methylbutyl; 3-methyl 94 3.4 Butyl butyrate 95 2.3 Buttersäurecyclohexylester 96 2.8 butyrate 97 2.7 butyrate; 2-methyl- 98 2.8 butyrate; 3-oxo 99 2.5 quinoline; 6- (1-methylpropyl) - 100 2.7 Cyclohexanethanolacetat 101 2.3 cyclohexanol; 5-methyl-2- (1-methylethyl) - 102 2.5 cyclohexanol; 5-methyl-2- (1-methylethyl) - 103 3.7 Cyclohexanolacetat 104 2.9 Cyclohexanolacetat; 5-methyl-2- (1-methylethyl) - 105 2.9 cyclohexanone; 5-methyl-2- (1-methylethyl) - (iso) 106 3.8 cyclohexanone; 5-methyl-2- (1-methylethyl) - (L) 107 4.7 Cyclohexanepropionic acid 2-propenyl 108 3.0 Cyclohexene; 1-methyl-4- (1-methylethylidene) - 109 3.0 Cyclopentanessigsäuremethylester; 3-oxo-2-pentyl- (E) 110 4.7 decanal 111 3.3 decanal; 2-methyl- 112 3.0 dodecanal 113 3.4 Acetic acid 2-phenylethyl ester 114 3.0 Acetic acid 2-propenyl ester; (Cyclohexyloxy) - 115 3.3 Acetic acid 2-propenyl ester; 2- (3-methylbutoxy) - 116 4.2 Acetic acid 2-propenyl ester; phenoxy 117 3.6 ethanone; 1- (1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl) - 118 2.5 ethanone; 1- (2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a, 7-methano-azulen-5-yl) - 119 2.4 ethanone; 1- (2-naphthalenyl) - 120 3.7 ethanone; 1- (2-pyrazinyl) - 121 3.8 ethanone; 1- (4-Methylphenyl) - 122 2.6 Ethanthiosäure-S- [1- [2- (acetyloxy) ethyl] butyl] ester 123 4.0 heptanal 124 3.0 heptanoate 125 2.9 hexanal 126 3.5 hexanal; 3,5,5-trimethyl 127 3.0 Indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro- 128 2.7 Indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro-2,4-dimethyl- 129 2.7 methanone; diphenyl 130 3.3 nonanal 131 3.5 octanal 132 2.9 octanoate 133 3.5 Phenol; 2-methoxy-4- (2-propenyl) - 134 3.5 phenylacetaldehyde 135 3.0 phenylacetaldehyde; alpha-methyl 136 3.3 phenylacetonitrile; alpha-cyclohexylidene 137 2.7 Phenylacetic acid-2-methylpropyl 138 2.9 Phenylmethanolacetat; alpha-methyl 139 2.5 propanedioic 140 2.4 Propionic acid-2-phenoxyethyl; 2-methyl- 141 3.3 Propionsäurehexylester; 2-methyl- 142 2.7 pyrazine; 2-ethoxy-1- (1-methylethyl) - 143 3.3 pyridine; 2- (3-phenylpropyl) - 144 3.2 pyridine; 4- (4,8-dimethyl-3,7-nonadienyl) - 145 4.2 Thiobutyric-1-methylpropyl ester; 3-methyl 146 3.3 undecanal 147 2.7 undecanal; 2-methyl- 148 2H-1,5-benzodioxepin-3 (4H) -one; 7-methyl 149 2,6-octadienenitrile; 3,7-dimethyl- (2Z) 150 2,6-octadienenitrile; 3,7-dimethyl- (2E) 151 5-heptenal; 2,6-dimethyl 152 2 (3H) -furanone; 5-butyl-tetrahydro- 153 butyrate; 3-methyl 154 1,6-octadiene-3-ol; 3,7-dimethyl 155 pentanoate; 2-methyl- 156 2-propenoate; 3-phenyl- (E) Examples of fragrances without sufficient odor-reducing effect against mineral oil odor Surname reduction value 1-hexanol 1.2 1-Hexanolacetat; 3,5,5-trimethyl 1.0 1H-indene 0.4 1-propan-1-ol acetate 1.0 1-propanol; 3- (3-methoxypropoxy) - 0.8 2-butanone; 4- (4-hydroxyphenyl) - 0.9 2-propanol; 2-methyl-1-phenyl 1.0 3-heptanone; 5-methyl- 0.9 3-heptene-2-one; 3,4,5,6,6-pentamethyl 1.0 3-hexene; 1- (methoxypropoxy) - (3E) 0.9 3-Octanolacetat; 3,7-dimethyl 1.0 5-heptene-2-one; 6-Methyl 1.1 benzoate 1.0 Bicyclo [2.2.1] heptan-2-ol acetate; 1,7,7-trimethyl 0.8 Bicyclo [3,1,1] heptane; 6,6-dimethyl-2-methylene 0.5 dipropylene -0.4 acetate 1.2 Butyl acetate 0.6 ethyl acetate 0.5 Acetic acid n-heptyl 1.0 Acetic acid n-pentyl -0.2 Heptanoic acid 2-propenyl 1.0 hexanoate 0.7

Example 2: Test of mixtures / chords against fuel oil odor

3 mixtures (AC) are prepared according to the following recipes: Mixture A: Surname reduction value Quantity / g 2,2-dimethylpropanal; 3- (4-ethylphenyl) - 2.7 6.50 3-buten-2-one; 1- (2,4,4-trimethyl-2-cyclohexen-1-yl) - (2E) 3.4 10.00 Indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro-2,4-dimethyl- 2.7 7.00 Indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro- 3.0 9.50 1,3-dioxane; 2,4,6-trimethyl-4-phenyl- 2.5 8.00 4H-4a, 9-Methanoazuleno [5,6-d] -1,3-dioxole; Octahydro-2,2,5,8,8,9a-hexamethyl- (4aR, 5R, 7aS; 9R) 2.5 2.00 5,9-Undecadienal; 2,6,10-trimethyl 3.5 12,00 2- (2-ethoxyethoxy) ethanol 45,00 Surname reduction value Quantity / g phenylacetaldehyde 3.5 2.75 cyclohexanone; 5-methyl-2- (1-methylethyl) - (L) 2.9 4.50 2-Hexenal (2E) 4.0 9.25 2 (3H) -furanone; 4-hydroxy-2,5-dimethyl- 3.9 16.00 2,6-nonadienal (2E, 6Z) 3.5 20.00 6-octenal; 3,7-dimethyl 4.7 7.00 3-buten-2-one; 3-methyl-4- (2,6,6-trimethyl-2-cyclohexen-1-yl) - 3.5 2.50 2-butene-1-one; 1- (2,6,6-trimethyl-1-cyclohexene-1-yl) - (E) 3.4 17.00 2-butanone; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) - 3.5 16.00 2- (2-ethoxyethoxy) ethanol 5.00 Surname reduction value Quantity / g pyridine; 2- (3-phenylpropyl) - 3.3 16.50 2-tridecenal (2E) 3.4 4.50 2 (3H) -furanone; 4-hydroxy-2,5-dimethyl- 3.9 16.00 2,6-nonadienal (2E, 6Z) 3.5 2.50 2,6-octadienal; 3,7-dimethyl- (2E) 3.8 4.00 2-butene-1-one; 1- (2,6,6-trimethyl-3-cyclohexene-1-yl) - (E) 4.2 15.00 6-octen-3-one; 2,4,4,7-tetramethyl 3.3 4.50 5,9-Undecadienal; 2,6,10-trimethyl 3.5 17.00 2- (2-ethoxyethoxy) ethanol 20.00

The mixtures AC were compared to 4.4a.5.9b-tetrahydro-indeno [1.2-d] -1,3-dioxin, 1-methyl-4- (1-methylethenyl) -cyclohexene and 2- (2-ethoxyethoxy) -ethanol after the above method tested. The mixtures have the desired effect. The values of the individual substances could be repeated. <u> Table 4: </ u> Results of the tests with the mixtures SURNAME reduction value MIXTURE A 3.6 MIX B 4.1 MIXTURE C 3.9 Indeno [1,2-d] -1,3-dioxin, 4.4a.5.9b tetrahydrofuran 3.2 Cyclohexene, 1-methyl-4- (1-methylethenyl) - 0.5 2- (2-ethoxyethoxy) ethanol 0.2

The mixtures AC were also compared to 4.4a.5.9b-tetrahydro-indeno [1,2-d] -1,3-dioxin, 1-methyl-4- (1-methylethenyl) -cyclohexene and 2- (2-ethoxyethoxy) -ethanol tested in a dosage of 50 ppm in heating oil. For this purpose, the perfumes were stirred in this dosage in fuel oil. In each case 10 g of the perfumed fuel oil were filled in 30 ml screw jars. The samples were evaluated on the same scale as unperfumed fuel oil, as in the above procedure. The mixtures also have the desired effect in this test, closer to the actual use of the products. Since only a few samples were compared in this way, neither the personal well-being nor the cognitive abilities of the examiners were impaired. The effects of the individual substances could also be found here. <u> Table 5: </ u> Results of the tests with the mixtures of heating oil directly SURNAME reduction value MIXTURE A 3.5 MIX B 4.6 MIXTURE C 4.0 Indeno [1,2-d] -1,3-dioxin, 4.4a.5.9b tetrahydrofuran 2.9 Cyclohexene, 1-methyl-4- (1-methylethenyl) - 0.1 2- (2-ethoxyethoxy) ethanol 0.3

Claims (15)

Mineral oil, characterized in that the mineral oil has a proportion of 0.5 ppm to 1.2 wt .-%, based on the total mineral oil, of one or more fragrances, which are selected from the group consisting of (A)
1,3-dioxane; 2,4,6-trimethyl-4-phenyl-1,3-dioxolan-2-acetic acid ethyl ester; 2,4-dimethyl-1,3-oxathiane; 2-methyl-4-propyl- (Z)
1-nonyne; 1,1-dimethoxy-1-octanol
2 (3H) -furanone; 5-hexyl-dihydro-2,2-dimethylpropanal; 3- (4-ethylphenyl) -2,4-decadienal (2E, 4E)
2,6-nonadienal (2E, 6Z)
2,6-octadiene-1-olformiat; 3,7-dimethyl- (2E)
2-butene-1-ol acetate; 3-methyl-2-buten-1-one; 1- (2,6,6-trimethyl-3-cyclohexene-1-yl) - (E)
2-Decenal (2E)
2H-pyran; 2-butyl-3,6-dihydro-4,6-dimethyl-2-naphthalenol; 1,2,3,4,4a, 5,6,7-octahydro-2,6,6-trimethyl-2-nonenenitrile (2E)
2-tridecenal (2E)
2-tridecenitrile (2Z)
3,6-Nonadiennitril; 3,7-dimethyl-3-buten-2-one; 3-methyl-4- (2,6,6-trimethyl-2-cyclohexen-1-yl) -3-cyclohexene-1-carbaldehyde; 2,4,6-trimethyl-3-cyclohexene-1-carbaldehyde; 2,4-dimethyl- (Z)
3-hexene-1-ol (3E)
3-hexene-1-ol (3Z)
3-octanol; 3,7-dimethyl-4-decenal (4Z)
4H-4a, 9-Methanoazuleno [5,6-d] -1,3-dioxole; Octahydro-2,2,5,8,8,9a-hexamethyl-9-undecenal (9E)
9-undecenal (9Z)

9-undecenal; 2,6,10-trimethyl-benzaldehyde; 4- (1-methylethyl) bicyclo [2.2.1] heptan-2-ol; 1,3,3-trimethyl-bicyclo [2.2.1] heptane-2-ol; 1,7,7-trimethyl-bicyclo [3,1,1] hept-2-ene; 2,6,6-trimethyl-Buttersäurecyclohexylester
butyrate
butyrate; 2-methyl-quinoline; 6- (1-methylpropyl) cyclohexanone; 5-methyl-2- (1-methylethyl) - (iso)
decanal; 2-methyl-dodecanal
Acetic acid 2-propenyl ester; (Cyclohexyloxy) acetic acid 2-propenyl ester; 2- (3-methylbutoxy) -Ethanthiosäure-S- [1- [2- (acetyloxy) ethyl] butyl] ester
heptanoate
hexanal
hexanal; 3,5,5-trimethyl-nonanal
octanal
Phenol; 2-methoxy-4- (2-propenyl) -Phenylacetaldehyd
phenylacetaldehyde; alpha-methyl-pyrazine; 2-ethoxy-1- (1-methylethyl) pyridine; 2- (3-phenylpropyl) pyridine; 4- (4,8-dimethyl-3,7-nonadienyl) -Undecanal
undecanal; 2-methyl-1,3,5-trioxane; 2,4,6-trimethyl-1-Butanolacetat; 3-methyl-2 (3H) -furanone; 4-Hydroxy-2,5-dimethyl-2 (3H) -furanone; Dihydro-5-pentyl-2,6-octadiene-1-ol; 3,7-dimethyl- (2E)
2,6-octadienal; 3,7-dimethyl- (2E)
2-butene-1-one; 1- (2,6,6-trimethyl-1-cyclohexene-1-yl) - (E)
2-Hexenal (2E)
6-octene-1-ol; 3,7-dimethyl-6-octenal; 3,7-dimethyl-6-octenonitrile; 3,7-dimethyl-acetaldehyde; [(3,7-dimethyl-6-octenyl) oxy] -benzaldehyde; 4-methyl-benzene; (2,2-dimethoxyethyl) -Cyclohexanolacetat
cyclohexanone; 5-methyl-2- (1-methylethyl) - (L)
Cyclohexanepropionic acid 2-propenyl
decanal
Acetic acid 2-propenyl ester; Phenoxy-ethanone; 1- (1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl) ethanone; 1- (2-pyrazinyl) ethanone; 1- (4-methylphenyl) -heptanal
Thiobutyric-1-methylpropyl ester; 3-methyl-2H-1,5-benzodioxepin-3 (4H) -one; 7-methyl-2,6-octadienenitrile; 3,7-dimethyl- (2Z)
2,6-octadienenitrile; 3,7-dimethyl- (2E)
5-heptenal; 2,6-dimethyl-2 (3H) -furanone; 5-butyl-tetrahydro-butyrate; 3-methyl-1,6-octadiene-3-ol; 3,7-dimethyl-pentanoic acid; 2-methyl-2-propenoate; 3-phenyl- (E)
1,2,3,4,4a, 9,10,10a-octahydro-phenanthrene-1-carboxylic acid methyl ester; 7-Isopropyl-1,4a-dimethyl-1,3-benzodioxolan-5-propanal; alpha-methyl-1,3-dioxolan-2-acetic acid ethyl ester; 2-methyl-10-undecenal
1-decanol
1H-4,7-methanoinden-5-olpropionat; 3a, 4,5,6,7,7a-hexahydro-1-hexanol; 3,5,5-trimethyl-1-octen-3-ol acetate
2 (3H) -furanone; 5-heptyl-dihydro-2,6-octadiene-1-ol acetate; 3,7-dimethyl- (2E)
2,6-octadiene-1-ol acetate; 3,7-dimethyl- (2Z)
2-butanone; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) -2-cyclopentene-1-one; 3-methyl-2- (2-pentenyl) - (Z) 2H-1-benzopyran-2-one
2-heptanol; 2,6-dimethyl-2-octanol; 2,6-dimethyl-2-octanone
2-pentenoic acid; 2-Methyl-2-phenylethanol
2-propen-1-ol; 3-phenyl- (E)
2-propenal; 2-methyl-3-phenyl- (E)
2-propenal; 3-phenyl- (E)
2-Propensäurephenylmethylester; 3-phenyl-3-buten-2-one; 1- (2,4,4-trimethyl-2-cyclohexene-1-yl) - (2E)
3-buten-2-one; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) -3-cyclohexene-1-carbaldehyde; 3- (4-methyl-3-pentenyl) -3-cyclohexene-1-carbaldehyde; 4- (4-hydroxy-4-methylpentyl) -3-cyclohexene-1-methanol acetate; alpha, alpha, 4-trimethyl-2-octanol; 2,6-dimethyl-4,7-methano-1H-indene-2,5-dimethanol; Octahydro-5,9-Undecadienal; 2,6,10-trimethyl-6-octen-3-one; 2,4,4,7-tetramethyl-7-octen-2-ol; 2,6-dimethyl-benzoic acid 2-methylpropyl; 2-Hydroxy-benzoic acid-3-methylbutyl ester
benzoate
benzoate; 2- (methylamino) benzoic acid n-pentyl ester, 2-hydroxy
Benzoic acid, n-propyl
Benzene; (1,1-Dimethylethyl) -3,5-dimethyl-2,4,6-trinitro-benzene 1-; 1,1'-methylene bis-benzene; 1,4-dimethoxy-bicyclo [2.2.1] heptane; 2,2-dimethyl-3-methylene-butyric acid 2-phenylethyl ester; 3-methyl-butyric acid-3-methylbutyl; 3-methyl-butyl butyrate
butyrate; 3-oxo-Cyclohexanethanolacetat
cyclohexanol; 5-methyl-2- (1-methylethyl) -cyclohexanol; 5-methyl-2- (1-methylethyl) -Cyclohexanolacetat; 5-methyl-2- (1-methylethyl) cyclohexene; 1-methyl-4- (1-methylethylidene) -Cyclopentanessigsäuremethylester; 3-oxo-2-pentyl- (E)
Acetic acid 2-phenylethyl ester
ethanone; 1- (2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a, 7-methano-azulen-5-yl) ethanone; 1- (2-naphthalenyl) indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro-indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro-2,4-dimethyl-methanone; Diphenyl-octanoate
phenylacetonitrile; alpha-cyclohexylidene-phenylacetic acid 2-methylpropyl ester
Phenylmethanolacetat; alpha-methyl-propanedioic
Propionic acid-2-phenoxyethyl; 2-methyl-Propionsäurehexylester; 2-methyl. Mineral oil according to claim 1, characterized in that the content of fragrances of the group (A) a) 1 to 1000 ppm, preferably 10 - 500 ppm, and more preferably 30 - 300 ppm, based on the total mineral oil, if the mineral oil is a heating oil, diesel or gasoline, and b) 0.01-2 wt .-%, preferably 0.1 to 2 wt .-%, and particularly preferably 0.2 to 2 wt .-% based on the total mineral oil, when the mineral oil is a lubricating oil. Mineral oil according to one of claims 1 to 2, characterized in that at least one or the fragrances of the group (A) is selected from the group (B), wherein the group (B) consists of:
1,3,5-trioxane; 2,4,6-trimethyl-1-Butanolacetat; 3-methyl-2 (3H) -furanone; 4-Hydroxy-2,5-dimethyl-2 (3H) -furanone; Dihydro-5-pentyl-2,6-octadiene-1-ol; 3,7-dimethyl- (2E)
2,6-octadienal; 3,7-dimethyl- (2E)
2-butene-1-one; 1- (2,6,6-trimethyl-1-cyclohexene-1-yl) - (E)
2-Hexenal (2E)
6-octene-1-ol; 3,7-dimethyl-6-octenal; 3,7-dimethyl-6-octenonitrile; 3,7-dimethyl-acetaldehyde; [(3,7-dimethyl-6-octenyl) oxy] -benzaldehyde; 4-methyl-benzene; (2,2-dimethoxyethyl) -Cyclohexanolacetat
cyclohexanone; 5-methyl-2- (1-methylethyl) - (L)
Cyclohexanepropionic acid 2-propenyl
decanal
Acetic acid 2-propenyl ester; Phenoxy-ethanone; 1- (1,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl) ethanone; 1- (2-pyrazinyl) ethanone; 1- (4-methylphenyl) -heptanal
Thiobutyric-1-methylpropyl ester; 3-methyl-2H-1,5-benzodioxepin-3 (4H) -one; 7-methyl-2,6-octadienenitrile; 3,7-dimethyl- (2Z)
2,6-octadienenitrile; 3,7-dimethyl- (2E)
5-heptenal; 2,6-dimethyl-2 (3H) -furanone; 5-butyl-tetrahydro-butyrate; 3-methyl-1,6-octadiene-3-ol; 3,7-dimethyl-pentanoic acid; 2-methyl-2-propenoate; 3-phenyl- (E). Mineral oil according to one of the preceding claims, characterized in that at least one of the fragrances of the group (A) is selected from the group consisting of (C)
1,3-dioxane; 2,4,6-trimethyl-4-phenyl-1,3-dioxolan-2-acetic acid ethyl ester; 2,4-dimethyl-1,3-oxathiane; 2-methyl-4-propyl- (Z)
1-nonyne; 1,1-dimethoxy-1-octanol
2 (3H) -furanone; 5-hexyl-dihydro-2,2-dimethylpropanal; 3- (4-ethylphenyl) -2,4-decadienal (2E, 4E)
2,6-nonadienal (2E, 6Z)
2,6-octadiene-1-olformiat; 3,7-dimethyl- (2E)
2-butene-1-ol acetate; 3-methyl-2-buten-1-one; 1- (2,6,6-trimethyl-3-cyclohexene-1-yl) - (E)
2-Decenal (2E)
2H-pyran; 2-butyl-3,6-dihydro-4,6-dimethyl-2-naphthalenol; 1,2,3,4,4a, 5,6,7-octahydro-2,6,6-trimethyl-2-nonenenitrile (2E)
2-tridecenal (2E)
2-tridecenitrile (2Z)
3,6-Nonadiennitril; 3,7-dimethyl-3-buten-2-one; 3-methyl-4- (2,6,6-trimethyl-2-cyclohexen-1-yl) -3-cyclohexene-1-carbaldehyde; 2,4,6-trimethyl-3-cyclohexene-1-carbaldehyde; 2,4-dimethyl- (Z)
3-hexene-1-ol (3E)
3-hexen-1-ol (3Z) 3-octanol; 3,7-dimethyl-4-decenal (4Z)
4H-4a, 9-Methanoazuleno [5,6-d] -1,3-dioxole; Octahydro-2,2,5,8,8,9a-hexamethyl-9-undecenal (9E)
9-undecenal (9Z)
9-undecenal; 2,6,10-trimethyl-benzaldehyde; 4- (1-methylethyl) bicyclo [2.2.1] heptan-2-ol; 1,3,3-trimethyl-bicyclo [2.2.1] heptane-2-ol; 1,7,7-trimethyl-bicyclo [3,1,1] hept-2-ene; 2,6,6-trimethyl-Buttersäurecyclohexylester
butyrate
butyrate; 2-methyl-quinoline; 6- (1-methylpropyl) cyclohexanone; 5-methyl-2- (1-methylethyl) - (iso)
decanal; 2-methyl-dodecanal
Acetic acid 2-propenyl ester; (Cyclohexyloxy) acetic acid 2-propenyl ester; 2- (3-methylbutoxy) -Ethanthiosäure-S- [1- [2- (acetyloxy) ethyl] butyl] ester
heptanoate
hexanal
hexanal; 3,5,5-trimethyl-nonanal
octanal
Phenol; 2-methoxy-4- (2-propenyl) -Phenylacetaldehyd
phenylacetaldehyde; alpha-methyl-pyrazine; 2-ethoxy-1- (1-methylethyl) pyridine; 2- (3-phenylpropyl) pyridine; 4- (4,8-dimethyl-3,7-nonadienyl) -Undecanal
undecanal; 2-methyl. Mineral oil according to one of the preceding claims, characterized in that at least one of the fragrances of the group (A) is selected from the group (B) and at least one of the fragrances of the group (A) is selected from the group (C) and / or at least one of the fragrances of the group (A) is selected from the group (D), wherein the group (D) consists of
1,2,3,4,4a, 9,10,10a-octahydro-phenanthrene-1-carboxylic acid methyl ester; 7-Isopropyl-1,4a-dimethyl-1,3-benzodioxolan-5-propanal; alpha-methyl-1,3-dioxolan-2-acetic acid ethyl ester; 2-methyl-10-undecenal
1-decanol
1H-4,7-methanoinden-5-olpropionat; 3a, 4,5,6,7,7a-hexahydro-1-hexanol; 3,5,5-trimethyl-1-octen-3-ol acetate
2 (3H) -furanone; 5-heptyl-dihydro-2,6-octadiene-1-ol acetate; 3,7-dimethyl- (2E)
2,6-octadiene-1-ol acetate; 3,7-dimethyl- (2Z)
2-butanone; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) -2-cyclopentene-1-one; 3-methyl-2- (2-pentenyl) - (Z)
2H-1-benzopyran-2-one
2-heptanol; 2,6-dimethyl-2-octanol; 2,6-dimethyl-2-octanone
2-pentenoic acid; 2-Methyl-2-phenylethanol
2-propen-1-ol; 3-phenyl- (E)
2-propenal; 2-methyl-3-phenyl- (E)
2-propenal; 3-phenyl- (E)
2-Propensäurephenylmethylester; 3-phenyl-3-buten-2-one; 1- (2,4,4-trimethyl-2-cyclohexene-1-yl) - (2E)
3-buten-2-one; 4- (2,6,6-trimethyl-1-cyclohexen-1-yl) -3-cyclohexene-1-carbaldehyde; 3- (4-methyl-3-pentenyl) -3-cyclohexene-1-carbaldehyde; 4- (4-hydroxy-4-methylpentyl) -3-cyclohexene-1-methanol acetate; alpha, alpha, 4-trimethyl-2-octanol; 2,6-dimethyl-4,7-methano-1H-indene-2,5-dimethanol; Octahydro-5,9-Undecadienal; 2,6,10-trimethyl-6-octen-3-one; 2,4,4,7-tetramethyl-7-octen-2-ol; 2,6-dimethyl-benzoic acid 2-methylpropyl; 2-Hydroxy-benzoic acid-3-methylbutyl ester
benzoate
benzoate; 2- (methylamino) benzoic acid n-pentyl ester, 2-hydroxy
Benzoic acid, n-propyl
Benzene; (1,1-Dimethylethyl) -3,5-dimethyl-2,4,6-trinitro-benzene 1-; 1,1'-methylene bis-benzene; 1,4-dimethoxy-bicyclo [2.2.1] heptane; 2,2-dimethyl-3-methylene-butyric acid 2-phenylethyl ester; 3-methyl-butyric acid-3-methylbutyl; 3-methyl-butyl butyrate
butyrate; 3-oxo-Cyclohexanethanolacetat
cyclohexanol; 5-methyl-2- (1-methylethyl) -cyclohexanol; 5-methyl-2- (1-methylethyl) -Cyclohexanolacetat; 5-methyl-2- (1-methylethyl) cyclohexene; 1-methyl-4- (1-methylethylidene) -Cyclopentanessigsäuremethylester; 3-oxo-2-pentyl- (E)
Acetic acid 2-phenylethyl ester
ethanone; 1- (2,3,4,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1H-3a, 7-methano-azulen-5-yl) ethanone; 1- (2-naphthalenyl) indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro-indeno [1,2-d] -1,3-dioxin; 4,4a, 5,9b-tetrahydro-2,4-dimethyl-methanone; Diphenyl-octanoate
phenylacetonitrile; alpha-cyclohexylidene-phenylacetic acid 2-methylpropyl ester
Phenylmethanolacetat; alpha-methyl-propanedioic
Propionic acid-2-phenoxyethyl; 2-methyl-Propionsäurehexylester; 2-methyl. Mineral oil according to one of the preceding claims, characterized in that at least one of the fragrances of the group (A) is selected from the group (B) and at least one of the fragrances of the group (A) is selected from the group (C) and at least one of Fragrances of group (A) is selected from group (D). Mineral oil according to one of the preceding claims, characterized in that the mineral oil in addition to the perfume (s) of group (A) comprises at least one additive component which is selected from: a flow improver, a Filtrierbarkeitsverbesserer, a metal deactivator, an antioxidant, a corrosion inhibitor a foam inhibitor, an ignition accelerator, a detergent, a particulate reducing agent, a stabilizer, an antiknock agent, an anti-calciner additive, a residual converter, an anti-smoke, a biocide, a lubricity improver, a conductivity improver, a wear protection agent, a dye, a color stabilizer, and a viscosity improver. Mineral oil according to one of the preceding claims, characterized in that the mineral oil is a proportion of 90 wt .-%, preferably 95 - 99.9 wt .-%, of a heating oil EL according to DIN 51603, a heating oil according to DIN 51601 Part 1 and / or diesel fuel according to DIN EN 590. An additive for scenting a mineral oil, comprising a fragrance content, said additive comprising one or more fragrances of group (A) in a proportion of at least 55 wt .-% based on the total mass of fragrances. An additive according to claim 9, wherein one or more of the fragrances of group (A) are selected from group (B), and preferably one or more of the fragrances of group (A) is selected from group (C) and / or Group (D). Use of a fragrance selected from the group (A), preferably the group (B), to reduce, mask or suppress the malodor of a mineral oil, or for producing an additive for reducing, masking or suppressing the malodour of a mineral oil. Use of a mixture comprising a fragrance of the group (B) and a fragrance of the group (C) and / or a fragrance of the group (D) to reduce, mask or suppress the malodor of a mineral oil or for producing an additive for reducing, masking or suppressing the malodour of a mineral oil. Use of an additive according to any one of claims 9 or 10 for reducing, masking or suppressing the malodour of a mineral oil. Use according to one of claims 11 to 13, wherein the bad smell of the mineral oil is the bad smell of a heating oil EL according to DIN 51603, a heating oil according to DIN 51601 part 1 and / or a diesel fuel according to DIN EN 590. A method for reducing, masking or suppressing the malodour of a mineral oil, comprising the steps of: a) providing a mineral oil to be treated, and b) adding an additive according to claim 9 or 10 to the mineral oil until a desired reduction, masking or suppression of bad odor is achieved.