Solvent composition based on organic sulphoxide with masked odour

FIELD: chemistry.

SUBSTANCE: invention relates to solvent compositions which contain at least one organic sulphoxide of general formula (1): , where X, Y, R, R' are given in claim 1, by adding to said organic sulphoxide at least one odour masking agent which contains at least one compound selected from monoesters, di- or triesters, alcohols, ketones, aldehydes and terpenes.

EFFECT: obtaining a solvent composition.

24 cl, 2 tbl, 3 ex

The present invention relates to the field of organic sulphides and more specifically sulfoxidov of the alkyl or dialkyl and, in particular, dimethyl sulfoxide (DMSO).

It is well known that organic sulfides have mostly strong, unpleasant, even aggressive smell. Organic sulfoxidov, in particular, DMSO, may have a less aggressive smell, but nonetheless, depending on the concentration of impurities, the smell can be unpleasant and repulsive to the end user.

This disadvantage was not a real problem, because organic sulfoxidov and, in particular, DMSO mainly used in small quantities, often in the compositions, such as pharmaceutical, cosmetic, vicegerency and others. Such compositions contain several other components, which is often much more fragrant, even unpleasant-smelling, smells which usually mask solvents, fragrances, aromatic chemicals, etc. Thus, the disadvantages associated with the smell of organic sulfoxidov, up to this time was not a real problem that could be faced by the specialist.

However, organic sulfoxidov and, in particular, DMSO, now can find other applications, the development of the which may be complicated due to their smells. Indeed, the software replacement of toxic solvents, such as N-organic (NMP), N,N-dimethylformamide (DMF) or methylene chloride, the organic sulfoxidov and in particular, DMSO, are solvents which are selected because of their properties, namely low toxicity and high solvent capacity.

Thus, to use organic sulfoxidov the solvent should solve the problem of odors inherent in these products. Currently, the applicant found that it is possible to mask, to otherout organic sulfoxidov used as solvents, so that they can be used without obstacles, which are odors inherent in these oxides, while maintaining the solvent properties inherent in these organic sulfoxidov.

Thus, the object of the invention is the composition of the solvent containing:

a) at least 50% and preferably at least 70%, most preferably at least 80% of the mass. at least one organic sulfoxide of General formula (1):

(1)

in which

- X and Y, identical or different, are selected, independently of one another, oxygen, sulfur, -SO-, -SO₂-, -NH - and-NR-;

a and b, identical or different,denote, independently of one another, 0 or 1; n is 1 or 2;

R, R' and R", identical or different, are selected, independently of one another, linear or branched alkyl radical containing from 1 to 12 carbon atoms, linear or branched alkenylphenol radical containing from 2 to 12 carbon atoms, and aryl radicals containing from 6 to 10 carbon atoms, with R, R' and R" may be replaced by radicals selected from alkyl, alkenyl, aryl, halogen and may contain one or more heteroatoms selected from O, S, N, P and Si; R and R' may also form together with the atoms to which they are bound, a cyclic hydrocarbon structure and may contain one or more heteroatoms selected from O, S and N, and the specified cyclic structure contains 5, 6, 7, 8 or 9 tops;

b) from a few ppm, mainly from 10 ppm to 2%, preferably from 10 ppm to 1 wt%. in relation to the total weight of the composition of at least one agent, a masking scent, containing at least one compound selected from complex monoufia, complex diesters and/or Trifonov, alcohols, aldehydes, ketones and terpenes.

The amount of masking agent (composition b) can vary within wide limits specified above, depending on the target of the effect, the intensity of the masked what about the smell, the corresponding residues of various contaminants that may be present in one (of several) component(component a), above, and others.

The amount of masking agent, less than a few ppm, may be too small to obtain the desired effect. The amount of masking agent in excess of 2%, can have negative consequences depending on the target applications of organic sulfoxidov as solvents.

Preferably, and without limitation, the content of the masking agent(s) (b) is from 0.001% to 0.2% of the mass. in relation to the total weight of the composition, preferably from 100 ppm to 1000 ppm, for example, about 500 ppm of the mass.

In the description of the present invention percentages are by weight, unless otherwise indicated. Unless otherwise stated, "ppm" means million weights. By "aryl radical" is understood aromatic hydrocarbon radical, preferably selected from phenyl and naphthyl. Preferably, the aryl radical is a phenyl radical.

In accordance with a preferred aspect of the present invention component (a) corresponds to the formula (1)where and denotes 0 and -(Y)_bmeans -(S)_x-where x denotes 0 or 1, preferably 0. Also preferred are components (a) of formula (1)in which the radicals R and R' are about incopyme and are selected independently of one another linear or branched alkyl radical, containing from 1 to 12 carbon atoms, preferably from 1 to 6 carbon atoms, preferably from 1 to 4 carbon atoms, a linear or branched alkenylphenol radical containing from 2 to 12 carbon atoms, preferably from 2 to 6 carbon atoms, preferably from 2 to 4 carbon atoms, and aryl radicals, preferably phenyl radical.

In accordance with another preferred aspect of the component a) of formula (1)above, preferred are those in which a and b denote each 1, and X and Y independently selected from oxygen, sulfur, -NR -, and-NR"-.

In accordance with the embodiment component a)used in the composition of the present invention, is an organic sulfoxide obtained by any known method, or commercially available, and preferably with a limited content of volatile impurities. Such impurities are, for example, and in particular, if the compound (a) is DMSO, dimethyl sulfide (DMS), dimethyl disulfide (DMDS) and/or bis(methylthio)methane, also known as 2,4-diapente (WMTM).

Suitable may be any well-known specialist way intended to remove or at least reduce the content of the above-mentioned volatile impurities, which can be called, without limitation, distillation, crystallization,evaporation in a stream of inert gas, such as nitrogen, air, and other.

In the case of DMSO content of impurities, such as VMI, DMDS and/or VMTM should primarily be less than 100 ppm, preferably less than 50 ppm, more preferably less than 10 ppm of each of the impurities taken separately.

In accordance with a preferred embodiment component a) of the composition according to the present invention corresponds to the formula (1'):

(1')

in which R is chosen from linear or branched alkyl radical containing from 1 to 4 carbon atoms, a linear or branched alkenylphenol radical containing from 2 to 4 carbon atoms, and aryl radicals, preferably phenyl, n is 1 or 2; x represents 0 or 1; R' is chosen from linear or branched alkyl radical containing from 1 to 4 carbon atoms, a linear or branched alkenylamine radical containing from 2 to 4 carbon atoms, and aryl radicals, preferably phenyl.

In accordance with a preferred embodiment component a) of the composition according to the present invention corresponds to the formula (1A):

(1a)

in which R and R', identical or different, chosen from linear or branched alkyl radical, steriade is about 1 to 4 carbon atoms, linear or branched alkenylphenol radical containing from 1 to 4 carbon atoms, and the phenyl radical, n is 1 or 2; x is 0.

Preferably component a) of formula (1A) is DMSO.

According to the invention the masking odor organic sulfoxide of formula (1), (1') or (1A)described above, by adding to the specified oxide composition defined above in paragraph (b).

The advantage of the present invention consists in masking the unpleasant odor of at least one organic sulfoxide without chemical changes its nature. Thus, the present invention features a composition comprising a) a predominant amount of at least one organic sulfoxide of formula (1), (1') or (1A)above, to which is added a small amount of the composition (b)masking the unpleasant smell of the component (a).

Composition with masked the smell of the present invention can be obtained by any known method by a simple combination of at least one component a) with at least one composition (b)masking the smell. For example, you can add at least one composition (b) at least one component (a) or, on the contrary, it is possible in the conditions of mixing and/or maybe when heated. In General, may be any known method is masiania and/or heat.

A composition according to the invention can, for example, be carried out at atmospheric pressure, at a temperature from 0°C to 100°C, preferably from room temperature to about 80°C. the Receipt can also be carried out under pressure or under reduced pressure in the temperature limits specified above.

The time required to obtain compositions with a disguised smell varies depending on the nature and quantity of one or more components (a) and one or more of the compositions (b), but also depending on the selected temperature and pressure. Typically, this time corresponds to the time required to obtain a homogeneous mixture with the expected effect of masking the odor of one or more components a); it is usually from several seconds to several minutes, even one or a few hours.

The above method of obtaining can be done periodically (a way to “batch”) or continuously.

As mentioned above, the agent, masking the smell b)contains one or more compounds chosen from:

b1) complex monoamino;

b2) complex di and/or Trifonov;

b3) alcohols, mainly monospiral containing from 1 to 30 carbon atoms, preferably from 6 to 20 carbon atoms, more preferably from 8 to 11 carbon atoms, and these carbon atoms is brisout linear or branched chain, may contain one or more unsaturated bonds in the form of one or more double bonds and may contain 5-or 6-titlenew a cyclic structure, saturated, or fully or partially unsaturated;

b4) aldehydes and/or ketones, in particular, aldehydes and/or ketones of the formula R^a-CO-R^bin which R^ais a hydrocarbon chain containing from 1 to 6 carbon atoms, linear or branched, may contain one or more unsaturated bonds in one or several double bonds, and R^bdenotes a hydrogen atom, a cyclic hydrocarbon chain or a linear or branched hydrocarbon chain, it is possible, but preferably substituted cyclic structure, R^bcontains from 6 to 12 carbon atoms, this may contain one or more unsaturated bonds in the form of one or more double bonds and, possibly substituted by one or more hydroxyl groups; and

b5) terpenes.

As illustrative, but non-limiting examples of complex monoamino referred to in paragraph b1)include esters of saturated or unsaturated With₂-C₂₀acids, such as acetates, propionate, butyrate, methylbutyrate, pentanoate, hexanoate, heptanoate, caproate, oleates, linoleates, linolenate ethyl, propyl who, butyl, penttila, 2-methylbutyl, isoamyl, hexyl, benzyl, phenylethyl, mantila, carvela and others, as well as mixtures thereof.

Most preferred are acetate isoamyl, acetate hexyl, butyrate 2-methylbutyl, butyrate of isoamyl, benzyl acetate, acetate phenylethyl and mixtures of these compounds.

As illustrative, but non-limiting examples of complex di - and/or Trifonov b2) can be called orthophthalate, such as orthophthalic of diethyl; citrates such as triethyl citrate; and/or malonate, takia as malonate of diethyl.

As illustrative, but non-limiting examples of the above alcohols b3) is preferably monosperma, hydroxyl functional group which is preferably connected with the carbon atom sp². It should be noted that the hydroxyl functional group can also be linked to a carbon atom included in a cyclic structure, as described above.

The alcohols b3), which can be used in the composition of the agent, a masking scent, and are defined above, and mainly as illustrative, but non-limiting examples, which are selected from menthol, neo-menthol, phenethyl alcohol, benzyl alcohol, citronellol, dihydromyrcenol, dihydromorphinone, dimeola, amillenial, geraniol, linalool, tetrahydroindole, tetrahydromyrcenol, nerol and D. the natives as well as mixtures of two or more of them.

As illustrative, but non-limiting examples of aldehydes and ketones specified in paragraph b4), can preferably be called Propionaldehyde, Butyraldehyde, valeraldehyde, caprellidae, benzaldehyde, geranial, neral, citronellal and mainly aldehydes containing hydrocarbon group containing one or more unsaturated bonds of olefinic type, Menton, isomenthone, 1,8-cineole, ascaridole, flavone, damascone, damascenone, ionone, Arizona, methylionone, Prambanan (n CAS 5471-51-2) and others, as well as a mixture of two or more of them at any ratio.

As illustrative, but non-limiting examples of terpenes listed in paragraph b5)can be, for example, to call terpinena, MIRCEN, lemon, terpinolene, pinene, Sabine, camphene and others, a mixture of two or more of them, as well as essential oil-based terpenes, in particular, those that contain these ingredients.

In addition, the agent, masking the smell b)fit within the framework of the present invention may contain small quantities of other agents (aromatic substances), usually used in the field of perfumery.

Composition b), intended to mask the smell of organic sulfides, such as described above can, if necessary, further comprise one or more to the AVOK, usually used in this field. Such additives may, for example, and without limitation, be selected from solvents, pigments, dyes, preservatives, biocides and others.

The most preferred examples of solvents are alcohols, ethers, esters and glycols. Most preferably the solvent is selected from diethylphthalate, ethylene glycol, propylene glycol, diethylene glycol, dipropyleneglycol, glycols, polypropylenglycol and mixtures thereof and even more preferably from diethylphthalate, dipropyleneglycol and mixtures thereof.

It should be understood that a complex of mono-, di - or truefire present in composition (b) agent, a masking scent, as component b1) and/or b2) may also be functions of the solvents defined above.

In accordance with a preferred aspect of the agent, masking the smell used in the compositions of the present invention, are selected from agents, masking odors, which contain:

at least one component b1);

at least one component b1) and at least one component b2);

at least one component b1) and at least one component b3);

at least one component b1) and at least one component b4);

at least one component b1) and at least one component b5);

- at least one is component b1), at least one component b2) and at least one component b3);

at least one component b1)at least one component b2) and at least one component b4);

at least one component b1)at least one component b2) and at least one component b5);

at least one component b1)at least one component b3) and at least one component b4);

at least one component b1)at least one component b3) and at least one component b5);

at least one component b1)at least one component b2)at least one component b3) and at least one component b4);

at least one component b1)at least one component b2)at least one component b3) and at least one component b5);

at least one component b1)at least one component b2)at least one component b3)at least one component b4) and at least one component b5);

at least one component b2),

at least one component b2) and at least one component b3),

at least one component b2) and at least one component b4),

at least one component b2) and at least one component b5),

at least one component b2)at least one component b3) and at IU is e one component b4);

at least one component b2)at least one component b3) and at least one component b5);

at least one component b2)at least one component b4) and at least one component b5);

at least one component b2)at least one component b3)at least one component b4) and at least one component b5);

at least one component b3),

at least one component b3) and at least one component b4),

at least one component b3) and at least one component b5),

at least one component b3)at least one component b4) and at least one component b5),

at least one component b4),

at least one component b4) and at least one component b5) and

at least one component b5).

In accordance with a more preferred aspect, the agent, masking the smell used in the compositions of the present invention, are selected from agents, masking odors, which contain:

at least one component b1)at least one component b2) and at least one component b3),

at least one component b1)at least one component b2) and at least one component b4),

at least one component b1)at least one component b2) and at least od the n component b5),

at least one component b1)at least one component b2)at least one component b3) and at least one component b4),

at least one component b1)at least one component b2)at least one component b3) and at least one component b5) and

at least one component b1)at least one component b2)at least one component b3)at least one component b4) and at least one component b5).

As indicated above, the composition according to the present invention contains at least one agent composition, masking the smell of b), and the specified agent contains from 1% to 40%, preferably from 2% to 35%, more preferably from 5% to 30% of the mass. in relation to the total weight of the composition (b) at least one compound monoether specified in item b1).

The composition of the agent, a masking smell b)also contains at least one complex of di - and/or triavir b2) in an amount of from 10% to 70 wt. -%, preferably from 15% to 65 wt. -%, more preferably from 20% to 60% of the mass. in relation to the total weight of the composition (b).

Agent, a masking smell b)also contains from 1% to 30%, preferably from 5% to 25% of the mass. in relation to the total weight of the composition of at least one alcohol b3).

The number of aldehyde(s) or ketone(s)specified in paragraph b4)is preferably from 05% to 20%, preferably from 1% to 10% of the mass. in relation to the total weight of the composition.

Agent, a masking odor may also contain up to 20%, preferably from 1% to 10% of the mass. in relation to the total weight of the composition of at least one terpene specified in b5).

In accordance with the preferred embodiment, the agent, masking the smell, b) contains:

b1) from 1% to 40% of the mass. at least one compound monoether;

b2) from 10% to 70% of the mass. at least one complex of di - and/or Trevira;

b3) from 1% to 30% of at least one alcohol;

b4) from 0.5% to 20% of at least one aldehyde or ketone of the formula R^a-CO-R^bin which R^ais a hydrocarbon chain containing from 1 to 6 carbon atoms, linear or branched, may contain one or more unsaturated bonds in one or several double bonds, and R^bdenotes a hydrogen atom, a cyclic hydrocarbon chain or a linear or branched hydrocarbon chain, it is possible, but preferably substituted cyclic structure, R^bcontains from 6 to 12 carbon atoms, this may contain one or more unsaturated bonds in the form of one or more double bonds and, possibly substituted by one or more hydroxyl groups; and

b5) is possible up to 20% of at least one the of the terpene.

A typical composition of the agent, a masking scent, suitable for organic sulfoxidov of the present invention contains by weight:

- from 5% to 30% of the mass. at least one compound monoether b1)selected from Solidaritate, methyl-2-ethyl butyrate, ISO-amyl of butyrate, phenylethylamine, ethylcaproic, benzoylacetate, vexillata and mixtures thereof;

- from 20% to 60% of the mass. at least one complex of di - and/or Trevira b2), selected (-s) of ortho-phthalates, such as diethyl-orthophthalate; citrates such as triethylcitrate and malonates, such as the diethyl malonate and mixtures thereof;

- from 5% to 25% of at least one alcohol, preferably at least two alcohols, preferably at least three alcohols, such as described above in b3);

from 1% to 10% of at least one ketone, preferably at least two ketones, preferably at least three ketones, such as described above in b4);

from 1% to 10% of at least one, preferably at least two, preferably a mixture of terpenes listed above in b5).

This composition, hereinafter in this text labeled C_imost suitable for masking the smell, to improve the smell of organic sulfoxidov, and in particular DMSO.

Typical, but not limiting example of such a composition C_ibelow each and the components contains one, several, even all these connections:

Component b1) 16,00%

containing benzoylacetate, exilerated, isoamylase, fenilatilamin, ethylcaproic, ethyl methyl-2-butyrate

Component b3)

containing phenethyl alcohol, citronellol, geraniol, linalool, CIS-3-hexenol 20,60%

Component b4)

containing 1-(4-hydroxyphenyl)butane-3-one, alpha-irison 4,50%

Component b5)

orange terpenes 7,00%

Other

containing citral, utililty, utilitysponsored 1,90%

Component b2)

containing diethylmalonate, diethylphthalate in the amount of up to 100.00%

These compositions are masking agents for organic sulfoxidov used as solvent, are given as examples and do not limit the potential variety of compositions provided by the present invention defined by the attached claims.

In accordance with another aspect of the present invention relates to the composition of the solvent containing:

a) from 50% to 95%, preferably from 70% to 90%, most preferably about 80% of the mass/ at least one organic sulfoxide of General formula (1), such as defined above;

b) from a few ppm, mainly from 10 ppm to 2%, preferably from 10 ppm to 1 wt%. in relation to the total weight of the composition of at least one agent,a masking smell b), such as defined above;

C) from 5% to 50%, preferably from 10% to 30%, most preferably about 20% of the mass. at least one co-solvent.

The co-solvent is typically selected from compounds, soluble, at least partially or completely in the organic sulfoxidov a) and in particular in DMSO.

Thus, the co-solvent is preferably selected from carbonates, esters, ketones, amines, amides and alcohols, preferably alcohols, preferably saturated, preferably containing from 1 to 10 carbon atoms, and, for example, but without limitation, selected from methanol, ethanol, propanol, butanol, pentanol, ethylene glycol, propylene glycol and glycerol (propane-1,2,3-triol), preferably from methanol, ethanol, ethylene glycol and glycerol. The preferred co-solvent is glycerin.

The most preferred composition of the present invention contains:

a) from 50% to 95%, preferably from 70% to 90%, most preferably about 80% of the mass. at least one organic sulfoxide of formula (1), (1') or (1A), such as described above, and preferably DMSO;

b) from a few ppm, mainly from 10 ppm to 2%, preferably from 10 ppm to 1 wt%. in relation to the total weight of the composition of at least one agent, a masking smell b), such as defined above; and site is preferably a masking agent C _i;

C) from 5% to 50%, preferably from 10% to 30%, most preferably about 20% of the mass. at least one alcohol, preferably glycerol.

For example, the composition of the present invention contains:

(a) about 80% of the mass. DMSO;

b) from a few ppm, mainly from 10 ppm to 2%, preferably from 10 ppm to 1 wt%. in relation to the total weight of the composition masking agent C_i;

(C) about 20% of the mass. glycerol.

The solvent composition of the present invention, mainly containing at least one organic sulfoxide and at least one agent, a masking scent, mainly applied to many areas where such solvents are rarely used or not used in connection with their smell.

Such applications is now possible are, for example, the use of solvent based mainly organic (-) sulfoxide(-s) and in particular, DMSO, such as a cleaning solvent or remover (paint, in electronics, for the etching of photoresists and other), agrochemical products, in particular, pesticides (herbicides, insecticides, fungicides, bactericides, nematicides, etc.), protivoobledinitelnoy, composition for Metalworking fluids and other drugs for synthesis or dissolution (cleaning or shaping) resin and/or polymer clay is s, of which can be called the polyacrylates, polymethacrylates, polyacrylonitrile, poly(vinyl acetate), polyimides (such as, for example, a complex polyetherimide, polyamideimide, simple polyetherimide and poly(amino-bismaleimide), polysulfones, polyesters, vinyl polyalcohol, simple polyethersulfone, polyamides, polyurethanes, elastomers such as EPDM, SBR, epoxy resin, phenolic plastics, aminos, chlorine-containing polymers (such as PVC), fluorinated polymers such as PTFE and PVDF, in particular, various kinds of Kynar®, manufactured by ARKEMA and particular, Kynar Flex®), and mentioned only some of the possible applications without restrictions.

The following examples illustrate the invention without limiting it.

EXAMPLE 1: COMPOSITION BASED DMSO WITH a DISGUISED SMELL

In order to characterize the flavouring composition, allowing the mask to improve the smell of DMSO was developed to test the smell. This procedure allows us to classify the different compositions of the hedonic method.

The CONDITIONS of the experiment:

To conduct this test on the smell use 30-litre barrel of polyethylene (PE), each of which is equipped with a cover, which cut the hatch about the size of 10 cm × 10 cm, allowing the operator (participant survey) to smell the vapors contained in the barrel.

In to the each of the barrels is the mold, contains 2 sheets of absorbent paper (chromatography paper). On each sheet pour 1 ml of the test composition. Hatches closed for 24 hours at room temperature. Then the evaluation is made blindly.

Respondents in the amount of 10 people, in turn tested several products within one session (maximum of 3 product per session). They start to smell from the barrel, which is DMSO, which is the control in this study, then one of the test compositions.

In accordance with your preferences survey respondents grade of each of the tested compositions relative to the control, which was arbitrarily given a rating of 5. Estimates put forward by the respondents, ranging from 1 (the most enjoyable product) to 10 (very bad product).

OBTAINING TEST SAMPLES:

Control DMSO is an industrial grade DMSO with purity equal to 99.97%of the product of Arkema, which is then injected with 50 ppm of dimethyl sulfide (DMS). This sample is called In₁.

In the same sample of DMSO, which was introduced 50 ppm of dimethyl sulfide, add 700 ppm flavouring composition C_iaccording to the invention. This sample is referred to as₂.

The results of the test on the smell in the following table 1.

The aggregation of these results allows us to calculate the standard deviation and to classify the samples in two groups, studying PPDS (least significant difference), which in this test is 1.01.

Test PPDS is a statistical test for comparison of mean values and allows you to define, do significantly differ in average of 2 samples or not from a statistical point of view.

In the examples of the present invention applied statistical configuration is 95%. If the average value does not significantly differ, both samples belong to the same group. If the averages differ significantly, two sample form 2 separate groups (a and B in the examples illustrating the invention).

The same action carried out to compare all samples, allowing the end to get 1, 2 or more groups, each of which consists of Bristow, the average rating which differ insignificantly. These different types of processing was performed using the software FIZZ, version 2,01 (Biosystèmes, Couternon, France).

Therefore, there is a very significant statistical difference, showing the perception distinctly more pleasant odor sample₂than sample₁.

EXAMPLE 2: COMPOSITION BASED DMSO WITH a DISGUISED SMELL

The same industrial DMSO as in example 1 with a purity of 99.97%, the product of Arkema, test without the addition of 50 ppm LCA in accordance with the smell test described in example 1. This sample is called With₁.

This industrial DMSO add 150 ppm flavouring composition C_iaccording to the invention. This sample is called With₂.

The results of the test on the smell of samples With₁and C₂show that the sample With₂statistically recognized as distinctly more pleasant than the sample With₁.

EXAMPLE 3: COMPOSITION BASED DMSO WITH a DISGUISED SMELL

The same industrial DMSO as in example 1 with a purity of 99.97%, the product of Arkema, test without the addition of 50 ppm LCA in accordance with the smell test described in example 1. This sample is called With₁.

To the same industrial DMSO add 50 ppm flavouring composition C_iaccording to the invention. This sample is referred to as the D₂.

This PR is industrial DMSO ₁add 50 ppm flavouring composition consisting of 100% pine essential oil (Firm D.R.T., Dax, France), which is a mixture of monoterpenes and cineole: terpinolene, dipentene, cineole-and 1,4 cineole and 1.8. This sample is referred to as the D₃.

The results of the test on the smell in the following table 2.

Flavouring composition based pine essential oil can, thus, make the smell of the sample With₁more enjoyable, as the aromatic composition C_iaccording to the invention.

1. The composition of the solvent containing:
a) at least 50% and preferably at least 70%, most preferably at least 80 wt.% at least one organic sulfoxide of General formula (I):

in which X and Y are the same and the different, chosen, independently of one another, oxygen, sulfur, -SO-, -SO₂-, NH - and-NR-;
a and b, identical or different, denote, independently of one another, 0 or 1; n is 1 or 2;
R, R' and R", identical or different, are selected, independently of one another, linear or branched alkyl radical containing from 1 to 12 carbon atoms, linear or branched alkenylphenol radical containing from 2 to 12 carbon atoms, and aryl radicals containing from 6 to 10 carbon atoms, with R, R' and R" may be replaced by radicals selected from alkyl, alkenyl, aryl, halogen, and may contain one or more heteroatoms selected from O, S, N, P and Si; R and R' may also form together with the atoms to which they are bound, a cyclic hydrocarbon structure and may contain one or more heteroatoms selected from O, S and N, and the specified cyclic structure contains 5, 6, 7, 8 or 9 tops; and
b) from a few ppm, mainly from 10 ppm to 2%, preferably from 10 ppm to 1 wt.% in relation to the total weight of the composition of at least one agent, a masking scent, containing at least one compound selected from complex monoufia, complex diesters and/or Trifonov, alcohols, aldehydes, ketones and terpenes.

2. The composition according to claim 1, in which soderzhaniemmasla agent(s) (b) is from 0.001% to 0.2 wt.% in relation to the total weight of the composition, preferably from 100 ppm to 1000 ppm, for example, about 500 ppm wt.

3. The composition according to claim 1, in which and indicates 0, -(Y)_bmeans -(S)_x-where x denotes 0 or 1, preferably 0, and R and R' are identical and are chosen, independently of one another, linear or branched alkyl radical containing from 1 to 12 carbon atoms, preferably from 1 to 6 carbon atoms, preferably from 1 to 4 carbon atoms, a linear or branched alkenylphenol radical containing from 2 to 12 carbon atoms, preferably from 2 to 6 carbon atoms, preferably from 2 to 4 carbon atoms, and aryl radicals, preferably phenyl.

4. The composition according to claim 1, in which component (a) of the composition according to the present invention corresponds to the formula (1'):

in which R is chosen from linear or branched alkyl radical containing from 1 to 4 carbon atoms, a linear or branched alkenylphenol radical containing from 2 to 4 carbon atoms, and aryl radicals, preferably phenyl, n is 1 or 2; x represents 0 or 1; R' is chosen from linear or branched alkyl radical containing from 1 to 4 carbon atoms, a linear or branched alkenylamine radical containing from 2 to 4 carbon atoms, and aryl radicals, preferably the phenyl.

5. The composition according to claim 1, in which component (a) of the composition according to the present invention corresponds to the formula (1A)in which R and R', identical or different, chosen from linear or branched alkyl radical containing from 1 to 4 carbon atoms, a linear or branched alkenylphenol radical containing from 1 to 4 carbon atoms, and the phenyl radical, n is 1 or 2; and x is 0.

6. The composition according to claim 1, in which component a) is DMSO.

7. The composition according to claim 1, in which the agent, a masking smell b)contains one or more compounds chosen from:
b1) complex monoamino;
b2) complex di - and/or Trifonov;
b3) alcohols, mainly monospiral containing from 1 to 30 carbon atoms, preferably from 6 to 20 carbon atoms, more preferably from 8 to 11 carbon atoms, and these atoms form a linear or branched chain, and possibly containing one or more unsaturated bonds in the form of one or more double bonds and may contain 5 - or 6-membered cyclic structure, saturated, or fully or partially unsaturated;
b4) aldehydes and/or ketones, in particular aldehydes and/or ketones of the formula R^a-CO-R^bin which R^ais a hydrocarbon chain containing from 1 to 6 carbon atoms, linear or branched, perhaps terasul one or more unsaturated bonds in one or several double bonds, and R^bdenotes a hydrogen atom, a cyclic hydrocarbon chain or a linear or branched hydrocarbon chain, it is possible, but preferably substituted cyclic structure, R^bcontains from 6 to 12 carbon atoms, this may contain one or more unsaturated bonds in the form of one or more double bonds and, possibly substituted by one or more hydroxyl groups; and
b5) terpenes.

8. The composition according to claim 7, in which b1) is chosen from esters of saturated or unsaturated C₂-C₂₀acids, such as acetates, propionate, butyrate, methylbutyrate, pentanoate, hexanoate, heptanoate, caproate, oleates, linoleates, linolenate ethyl, propyl, butyl, penttila, 2-methylbutyl, isoamyl, hexyl, benzyl, phenylethyl, mantila, carvela and others, as well as mixtures thereof.

9. The composition according to claim 7, in which b2) selected from orthophthalates, (preferably of orthophthalate of diethyl); citrate (preferably triethylcitrate) and malonate (preferably diethylmalonate).

10. The composition according to claim 7, in which b3) is selected from menthol, neo-menthol, phenethyl alcohol, benzyl alcohol, citronellol, dihydromyrcenol, dihydromorphinone, dimeola, amillenial, geraniol, linalool, tetrahydroindole, tetrahydromyrcenol, nerol and others, or mixtures of two or more of them.

11. The composition according to claim 7, in which b4) are selected from Propionaldehyde, Butyraldehyde, valeraldehyde, caprellidea, benzaldehyde, geranial, neral, citronellal and mainly aldehydes containing hydrocarbon group containing one or more unsaturated bonds of olefinic type, Mentone, isomenthone, 1,8-cineole, ascaridole, flavanone, damasceno, damascenone, Ivanov, assonov, methylionone and Prambanan and others, as well as mixtures of two or more of them at any ratio.

12. The composition according to claim 7, in which b5) are selected from terpineol, myrcene, limonene, terpinolene, Pimenov, sabinene, camphene, and others, and mixtures of two or more of them, as well as essential oils on the basis of terpenes, in particular, those that contain these ingredients.

13. The composition according to claim 1, in which the agent, a masking scent, choose from agents, masking odors, which contain:
at least one component b1);
at least one component b1) and at least one component b2);
at least one component b1) and at least one component b3);
at least one component b1) and at least one component b4);
at least one component b1) and at least one component b5);
at least one component b1)at least one component b2) and at least one component b3);
at measures is one component b1), at least one component b2) and at least one component b4);
at least one component b1)at least one component b2) and at least one component b5);
at least one component b1)at least one component b3) and at least one component b4);
at least one component b1)at least one component b3) and at least one component b5);
at least one component b1)at least one component b2)at least one component b3) and at least one component b4);
at least one component b1)at least one component b2)at least one component b3) and at least one component b5);
at least one component b1)at least one component b2)at least one component b3)at least one component b4) and at least one component b5);
at least one component b2),
at least one component b2) and at least one component b3),
at least one component b2) and at least one component b4),
at least one component b2) and at least one component b5),
at least one component b2)at least one component b3) and at least one component b4);
at least one component b2)at least one component b3) and at least one component b5);
for less than the least one component b2), at least one component b4) and at least one component b5);
at least one component b2)at least one component b3)at least one component b4) and at least one component b5);
at least one component b3),
at least one component b3) and at least one component b4),
at least one component b3) and at least one component b5),
at least one component b3)at least one component b4) and at least one component b5),
at least one component b4),
at least one component b4) and at least one component b5) and
at least one component b5).

14. The composition according to claim 1, in which the agent, a masking scent, choose from agents, masking odors, which contain:
at least one component b1)at least one component b2) and at least one component b3),
at least one component b1)at least one component b2) and at least one component b4),
at least one component b1)at least one component b2) and at least one component b5),
at least one component b1)at least one component b2)at least one component b3) and at least one component b4),
at least one component b1)at least one component b2), at least one of the components is HT b3) and at least one component b5) and
at least one component b1)at least one component b2)at least one component b3)at least one component b4) and at least one component b5).

15. The composition according to claim 1, in which the agent, a masking scent, contains from 1% to 40%, preferably from 2% to 35%, more preferably from 5% to 30 wt.% at least one compound monoether b1) relative to the total weight of the composition.

16. The composition according to claim 1, in which the agent, a masking scent, contains 10% to 70 wt.%, preferably from 15% to 65 wt.%, more preferably from 20% to 60 wt.% at least one complex of di - and/or Trevira b2) relative to the total mass of the composition (b).

17. The composition according to claim 1, in which the agent, a masking scent, contains from 1% to 30%, preferably from 5% to 25 wt.% at least one of the alcohol b3) with respect to the total mass of the composition (b).

18. The composition according to claim 1, in which the agent, a masking scent, contains from 0.5% to 20%, preferably from 1% to 10 wt.% at least one aldehyde or ketone b4) with respect to the total mass of the composition (b).

19. The composition according to claim 1, in which the agent, a masking scent, contains up to 20%, preferably from 1% to 10 wt.% at least one terpene b5) with respect to the total mass of the composition (b).

20. The composition according to claim 1, in which the agent, a masking scent, contains:
b1) from 1% to 40 wt.% at least one layer is aqueous monoether;
b2) from 10% to 70 wt.% at least one complex of di - and/or Trevira;
b3) from 1% to 30% of at least one alcohol;
b4) from 0.5% to 20% of at least one aldehyde and/or ketone of the formula R^a-CO-R^bin which R^ais a hydrocarbon chain containing from 1 to 6 carbon atoms, linear or branched, may contain one or more unsaturated bonds in one or several double bonds, and R^bdenotes a cyclic hydrocarbon chain or a linear or branched hydrocarbon chain, it is possible, but preferably substituted cyclic structure, R^bcontains from 6 to 12 carbon atoms, this may contain one or more unsaturated bonds in the form of one or more double bonds and, possibly substituted by one or more hydroxyl groups; and
b5) is possible up to 20% of at least one terpene.

21. The composition according to claim 1, in which the agent, a masking scent, contains:
from 5% to 30 wt.% at least one compound monoether b1)selected from Solidaritate, methyl-2-ethyl butyrate, ISO-amyl butyrate, phenylethylamine, ethylcaproic, benzoylacetate, vexillata and their mixtures;
from 20% to 60 wt.% at least one complex of di - and/or Trevira b2), selected(-s) of ortho-phthalates, such as diethyl-orthophthalate; citrato is, such as triethylcitrate, and malonates, such as the diethyl malonate and their mixtures;
from 5% to 25% of at least one alcohol, preferably at least two alcohols, preferably at least three alcohols, such as described above in b3);
from 1% to 10% of at least one ketone, preferably at least two ketones, preferably at least three ketones, such as described above in b4); and
from 1% to 10% of at least one, preferably two, preferably a mixture of terpenes listed above in b5).

22. The composition according to claim 1, containing:
a) from 50% to 95%, preferably from 70% to 90%, most preferably about 80 wt.% at least one organic sulfoxide of General formula (1),
b) from a few ppm, mainly from 10 ppm to 2%, preferably from 10 ppm to 1 wt.% in relation to the total weight of the composition of at least one agent, a masking smell b), and
c) from 5% to 50%, preferably from 10% to 30%, most preferably about 20 wt.% at least one co-solvent.

23. The composition according to item 22, in which the co-solvent is chosen from compounds that at least partially or completely soluble in organic sulfoxidov a), preferably selected from carbonates, esters, ketones, amines, amides and alcohols, preferably alcohols, preferably saturated, predpochtitelno containing from 1 to 10 carbon atoms, and more preferably from methanol, ethanol, propanol, butanol, pentanol, ethylene glycol, propylene glycol and glycerol (propane-1,2,3-triol),

24. The composition according to item 22, containing:
a) about 80 wt.% DMSO;
b) from a few ppm, mainly from 10 ppm to 2%, preferably from 10 ppm to 1 wt.% in relation to the total weight of the composition masking agent containing;
from 5% to 30 wt.% at least one compound monoether b1)selected from Solidaritate, methyl-2-ethyl butyrate, ISO-amyl of butyrate, phenylethylamine, ethylcaproic, benzoylacetate, vexillata and their mixtures;
from 20% to 60 wt.% at least one complex of di - and/or Trevira b2), selected(data) from orthophthalates, such as the diethyl orthophthalate; citrates such as triethylcitrate and malonates, such as the diethyl malonate and their mixtures;
from 5% to 25% of at least one alcohol, preferably at least two alcohols, preferably at least three alcohols, such as described above in b3);
from 1% to 10% of at least one ketone, preferably at least two ketones, preferably at least three ketones, such as described above in b4);
from 1% to 10% of at least one, preferably at least two, preferably a mixture of terpenes listed above in b5) and (C) about 20 wt.% glycerol.