COMPOSITION comprising an alkane and an oxo-ester

Abstract

The invention relates to a composition comprising at least one alkane of formula CnH2n+2 with n ≤ 12, and at least one oxo-ester, and an aerosol containing it. The invention also relates to a method for degreasing, cleaning, protecting, loosening, polishing, and / or lubricating the surface of an object comprising the application of said composition.

Description

Title of the invention: COMPOSITION comprising an alkane and an oxo-ester

[0001] This application relates to the technical field of degreasing, penetrating, cleaning and / or lubricating compositions.

[0002] The invention relates to a composition comprising at least one alkane of formula Cn H2n+2 with n<12 and at least one oxo-ester, and an aerosol comprising it.

[0003] The invention also relates to a method for degreasing, cleaning, protecting, loosening, shining and / or lubricating a surface comprising the application of the composition.

[0004] The WD-40® product is a multi-purpose degreaser developed in 1953 and widely distributed commercially.

[0005] The main ingredients of WD-40 are as follows: - 50% aliphatic hydrocarbons, - Less than 25% petroleum base oil, - Aliphatic hydrocarbon with a low vapor pressure of 12 to 18% - 2 to 3% carbon dioxide, - Less than 10% inert ingredients.

[0006] Although effective, this product is harmful to the environment due to its petrochemical composition. It is also highly toxic and irritating to the skin.

[0007] There is therefore a real need for compositions to degrease, clean, protect, loosen, polish and / or lubricate surfaces and which have a better impact both ecologically and on the health of the user.

[0008] Patent application CN103510099 discloses an environmentally friendly degreasing agent. Said degreaser consists mainly of sodium carbonate and soda and has as minor constituents emulsifiers and silicones.

[0009] Other applications, such as CN106011877, CN103614732, and CN105220166, describe work intended to provide an environmentally friendly degreaser. None of these applications discloses the use of a composition comprising at least one alkane of formula CnH2n+2 with n<12 and at least one oxo-ester.

[0010] Patent EP2726649 discloses a method for degreasing metal surfaces comprising the application of a composition comprising at least one levulinic acid ester. However, it is demonstrated in comparative tests that this composition This formulation exhibits poor volatility, making its formulation in aerosol form more complex and also requiring the user to rinse or dry the surface after application. It has also been shown that this composition is ineffective for treating, by immersion, burnt-on grease commonly found on mechanical parts.

[0011] Quite surprisingly, a process comprising the application of a composition to degrease, clean, protect, loosen, shine and / or lubricate a surface, having good volatility, being neither toxic nor irritating to the skin and having a good index of biodegradability and naturalness has been developed by the applicant.

[0012] A first object according to the present invention relates to a composition characterized in that it comprises: a. at least one alkane of formula CnH2n+2 with n<12, at a content of 40% to 95% (v / v) by volume relative to the total volume of the composition and b. at least one oxo-ester of formula I, wherein, - Ri is chosen from the group consisting of linear or branched alkyls comprising 1 to 8 carbon atoms; - R2, R3 and R4, identical or different, are chosen from the group formed by the hydrogen atom and / or linear or branched alkyls comprising 1 to 4 carbon atoms; and - n' is a natural number from 1 to 4 the content of said oxo-ester being from 5% to 60% (v / v) by volume relative to the total volume of the composition.

[0013] In the present application, an "alkane" is a saturated hydrocarbon consisting solely of carbon and hydrogen atoms linked together by single covalent bonds whose general formula is CnH2n+2. It is called a "linear alkane" when each carbon atom is bonded to a maximum of two carbon atoms and a "branched alkane" when some carbon atoms are bonded to three, or even four, carbon atoms.

[0014] In the present application, a “bioalkane” is a bio-based alkane.

[0015] For the purposes of the present invention, "bio-based" means an organic compound or composition in which the organic carbon present in the compound or composition is 100% of plant origin (14C) by radiocarbon analysis according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0016] In one embodiment, the composition according to the invention comprises a mixture of at least two different alkanes of formula CnII2n+2 with n<12.

[0017] In one embodiment, at least one alkane of formula CnII2n+2 with n<12 is a bioalkane.

[0018] In one embodiment, all alkanes of formula CnH2n+2 with n<12 are bioalkanes.

[0019] In one embodiment, at least one alkane of formula CnH2n+2 with n<12 has an even number of carbon atoms.

[0020] In one embodiment, all alkanes of formula CnH2n+2 with n<12 have an even number of carbon atoms.

[0021] In one embodiment, at least one alkane of formula CnH2n+2 with n<12 has an odd number of carbon atoms.

[0022] In one embodiment, at least one alkane of formula CnH2n+2 with n<12 is chosen from the group comprising: dodecane, 2-methyl undecane (CAS 7045-71-8), 3-methyl undecane (CAS 1002-43-3), 4-methyl undecane (CAS 2980-69-0), 5-methyl undecane (CAS 1632-70-8), 6-methyl undecane (CAS 17302-33-9), 2,4-dimethyl decane (CAS 2801-84-5), 4,4-dimethyl decane (CAS 17312-39-9), 3,5-dimethyl decane (CAS 17312-48-0), 2,5-dimethyl decane (CAS 17312-50-4), 2,3-dimethyl decane (17312-44-6), 3,3-dimethyl decane (17302-38-4), 3,7-dimethyl decane (CAS 17312-54-8), 3,4,6-trimethyl nonane (CAS 62184-24-1), 3,5,6-trimethyl nonane (CAS 62184-26-3), 3,5,7-trimethyl nonane (CAS 62184-27-4), 2,5,7-trimethyl nonane (CAS 62184-14-9), 2,5,6-trimethyl nonane (CAS 62184-13-8), 2,5,7-trimethyl nonane (CAS 62184-14-9), 2,5,8-trimethyl nonane (CAS 49557-09-7), 3,3,4,5-tetramethyl octane (CAS 62185-21-1), 2,3,4,5-tetramethyl octane (CAS 62199-27-3), 2,2,4,5-Tetramethyl octane (CAS 62183-80-6), 2,2,5,7-Tetramethyl octane (CAS 62199-19-3), 2,3,4,7-Tetramethyl octane (CAS 62199-29-5), 2,4,4,7-Tetramethyl octane (CAS 35866-96-7), 3-Ethyl-4-Methyl nonane (CAS 62184-45-6), 3-Ethyl-4,5-Dimethyl octane (CAS 62183-72-6), 2,5-Dimethyl-6-Ethyl octane (CAS 62183-50-0), Undecane (CAS 1120-21-4), 2-Methyl decane (CAS 6975-98-0), 4-Methyl decane (CAS 2847-72-5), 3-methyl decane (13141-34-3), 5-methyl decane (CAS 13151-35-4), 2,6-dimethyl nonane (CAS 17302-28-2), 3,7-dimethyl nonane (CAS 17302-32-8), 4,5-dimethyl nonane (CAS 17302-23-7), 2,3-dimethyl nonane (CAS 2884-06-2), 2,4,6-trimethyl octane (CAS 62016-37-9), 2,5,6-trimethyl octane (CAS 62016-14-2), decane (CAS 124-18-5), 2-methyl nonane (CAS 871-83-0), the 4-Methyl nonane (CAS 17301-94-9), 3-Methyl nonane (CAS 5911-04-6), 3-Ethyl octane (CAS 5881-17-4), 2,2-Dimethyl octane (CAS 15869-87-1), 2,3-Dimethyl octane (CAS 7146-60-3), 2,5-dimethyl octane (CAS 15869-89-3), 3,5-dimethyl octane (CAS 15869-93-9), 4-propyl heptane (CAS 3178-29-8), 3-ethyl-2-methyl heptane (CAS 14676-29-0), 2,2,3-trimethyl heptane (CAS 52896-92-1), 2,3,5-trimethyl heptane (CAS 20278-85-7), 2,3,6-trimethyl, heptane (CAS 4032-93-3), 3,3,4-trimethyl heptane (CAS 20278-87-9), 2,3,4-trimethyl heptane (CAS 52896-95-4), 2,2,4-trimethyl heptane (CAS 14720-74-2), 3,3-diethyl hexane (CAS 17302-02-2), 2,2,3,3-tetramethyl hexane (CAS 13475-81-5), 3-ethyl-2,2,3-trimethyl pentane (CAS 52897-17-3), nonane (111-84-2), 2-methyl octane (3221-61-2), 3-methyl octane (CAS 2216-33-3), 4-Methyl octane (CAS 2216-34-4), 2,4-Dhenethyl heptane (CAS 2213-23-2), 2,6-Dimethyl heptane (CAS 1072-05-5), 2,3-Dimethyl heptane (CAS 3074-71-3), 2,5-Dimethyl heptane (CAS 2216-30-0), 2,2-Dimethyl heptane (CAS 1071-26-7), 2,2,5-Trimethyl hexane (CAS 3522-94-9), 2,3,5-Trimethyl hexane (CAS 1069-53-0), 2,2,4-Trimethyl hexane (CAS 167476-26-5), 2,3,4-Trimethyl hexane (CAS 921-47-1), 3-ethyl heptane (CAS 15869-80-4), 4-ethyl heptane (CAS 2216-32-2), octane (CAS 111-65-9), 2,2,4-trimethyl heptane (CAS 592-27-8), 3-methyl heptane (CAS 589-81-1), 2-methyl heptane (CAS 592-27-8), 2,3,4-Thrhethyl pentane (CAS 565-75-3), 2,4-Dimethyl hexane (CAS 589-43-5), 2,5-Dimethyl hexane (CAS 592-13-2), 3,4-Dimethyl hexane (CAS 583-48-2), 3-Ethyl hexane (CAS 619-99-8), 4-Methyl heptane (CAS 589-53-7), and mixtures thereof.

[0023] In one embodiment, at least one alkane of formula CnH2n+2 with n<12 is linear.

[0024] In one embodiment, all alkanes of formula CnH2n+2 with n<12 are linear.

[0025] In one embodiment, at least one alkane of formula CnH2n+2 with n<12 is a dodecane.

[0026] In one embodiment, at least one alkane of formula CnH2n+2 with n<12 is an undecane.

[0027] In one embodiment, at least one alkane of formula CnH2n+2 with n<12 is a decane.

[0028] In one embodiment, at least one alkane of formula CnH2n+2 with n<12 is a nonane.

[0029] In one embodiment, at least one alkane of formula CnH2n+2 with n<12 is an octane.

[0030] In one embodiment, at least one alkane of formula CnH2n+2 with n<12 is branched.

[0031] In one embodiment, the alkanes of formula CnH2n+2 with n<12 comprise a mixture of decane and dodecane.

[0032] In one embodiment, the alkanes of formula CnH2n+2 with n<12 consist of a mixture of decane and dodecane.

[0033] The "naturalness index" of an organic composition is the percentage of organic carbon of plant origin (14C) determined by radiocarbon analysis. according to one of the following standards: ASTM D6866, EN 16640 or EN 16785-1.

[0034] In the context of the present invention, the OECD 301F method allows the biodegradability of a substance to be assessed by a manometric respirometry test.

[0035] In the context of the present invention, the OECD 301F method allows the biodegradability of a substance to be assessed by a manometric respirometry test.

[0036] In one embodiment, the alkane of formula CnH2n+2 with n<12 has a naturalness index greater than or equal to 60% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0037] In one embodiment, the alkane of formula CnH2n+2 with n<12 has a naturalness index greater than or equal to 70% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0038] In one embodiment, the alkane of formula CnH2n+2 with n<12 has a naturalness index greater than or equal to 75% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0039] In one embodiment, the alkane of formula CnH2n+2 with n<12 has a naturalness index greater than or equal to 85% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0040] In one embodiment, the alkane of formula CnH2n+2 with n<12 has a naturalness index greater than or equal to 90% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0041] Advantageously, the alkane of formula CnH2n+2 with n<12 has a naturalness index of 100% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0042] In one embodiment, the alkane of formula CnH2n+2 with n<12 is obtained from raw materials of plant, bacterial or animal origin.

[0043] In one embodiment, the alkane of formula CnH2n+2 with n<12 is obtained from raw materials of plant origin.

[0044] In one embodiment, the alkane of formula CnH2n+2 with n<12 exhibits a biodegradability of at least 50% according to the OECD 301F method.

[0045] In one embodiment, the alkane of formula CnH2n+2 with n<12 exhibits a biodegradability of at least 60% according to the OECD 301F method.

[0046] In one embodiment, the alkane of formula CnH2n+2 with n<12 exhibits a biodegradability of 50 to 80% according to the OECD 301F method.

[0047] In one embodiment, the alkane of formula CnH2n+2 with n<12 exhibits a biodegradability of 50 to 70% according to the OECD 301F method.

[0048] In one embodiment, the alkane of formula CnH2n+2 with n<12 exhibits a biodegradability of 50 to 60% according to the OECD 301F method.

[0049] In one embodiment, the alkane with formula CnH2n+2 with n<12 exhibits a biodegradability of 60 to 70% according to OECD method 301F.

[0050] In one embodiment, the alkane of formula CnH2n+2 with n<12 exhibits a biodegradability of 70 to 80% according to the OECD 301F method.

[0051] In one embodiment, the composition according to the invention comprises at least one oxo-ester of formula II:

[0052] [Chem.2] R2 O Formula II

[0053] in which, - R' i is chosen from the group consisting of linear or branched alkyls comprising 1 to 4 carbon atoms; - R2, R3 and R4, identical or different, are chosen from the group formed by the hydrogen atom or linear or branched alkyls comprising 1 to 4 carbon atoms; and - n' is a natural number between 1 and 4.

[0054] In one embodiment, the composition according to the invention comprises at least one oxo-ester of formula II, in which R2 and R3 are identical or different and are chosen from the group consisting of the hydrogen atom, the methyl group or the ethyl group, R4 is chosen from the group consisting of linear or branched alkyls comprising from 1 to 3 carbon atoms and n' is a natural number between 1 and 3.

[0055] In one embodiment, the composition according to the invention comprises at least one oxo-ester of formula I in which R2 and R3 are hydrogen atoms, R4 is a methyl group and n is equal to 1.

[0056] In one embodiment, the composition according to the invention comprises at least one oxo-ester of formula II in which R2 and R3 are hydrogen atoms, R4 is a methyl group and n is equal to 1.

[0057] In one embodiment, the composition according to the invention comprises an oxo-ester alone or in a mixture.

[0058] In one embodiment, the oxo-ester alone or in a mixture is selected from the group comprising: methyl levulinate (CAS 624-45-3), ethyl levulinate (CAS 539-88-8), propyl levulinate (645-67-0), isopropyl levulinate (CAS 21884-26-4), butyl levulinate (CAS 2052-15-5), isobutyl levulinate (CAS 3757-32-2), tert-butyl levulinate (CAS 2854-10-6), s-butyl levulinate (CAS 85734-01-6), penthyl levulinate (CAS 20279-49-6), hexyl levulinate (CAS 24431-34-3), octyl levulinate (CAS 41780-57-8), ethyl ester of 2-methyl-4-oxovaleric acid (CAS 4749-12-6), methyl 6-oxoheptanoate (CAS 2046-21-1), methyl 4-oxohexanoate (CAS 2955-62-6), methyl 5-oxohexanoate (CAS 13984-50-4), methyl 3-methyl-5-oxohexanoate (CAS 14983-18-7), methyl ester of 5-ketoenanthic acid (17745-32-3), methyl ester (CAS 36045-56-4), pentanoic acid, 2-ethyl-4-oxo-methyl ester (CAS 62359-06-2), methyl 3-methyl-4-oxohexanoate (CAS 69448-35-7), hexanoic acid, 2-methyl-5-oxo methyl ester (CAS 38872-30-9), pentanoic acid, 3-methyl-4-oxo ethyl ester (CAS 55424-74-3), ester 2-ethyl-4-oxomethyl hexanoic acid (CAS 75436-59-8), 2,4-dimethyl-5-oxomethyl hexanoic acid ester (CAS 93176-58-0),4-Oxo-2-propylmethyl ester of pentanoic acid (CAS 244196-06-3), 2,5-Dimethyl-4-oxomethyl ester of hexanoic acid (CAS 1249353-11-4), 4-Oxomethyl ester of octanoic acid (CAS 4316-48-7), 2-Methyl-6-oxomethyl ester of heptanoic acid (CAS 2570-90-3), 3-Methyl-6-oxomethyl ester of heptanoic acid (CAS 5128-55-2), 6-Methyl-5-oxomethyl ester of heptanoic acid (CAS 23575-33-9), 3-Methyl-5-oxoethyl ester of hexanoic acid (CAS 38052-21-0), 2-methyl-5-oxomethyl ester of heptanoic acid (CAS 25912-38-3), 4-methyl-6-oxomethyl ester of heptanoic acid (CAS 41841-53-6), 5-methyl-4-oxomethyl ester of heptanoic acid (CAS 42511-74-0), 4-methyl-5-oxomethyl ester of heptanoic acid (CAS 54225-40-0), 3,5-dimethyl-4-oxomethyl ester of hexanoic acid (CAS 64712-02-3), 6-methyl-4-oxomethyl ester of heptanoic acid (CAS 76678-33-6), heptanoic acid,2-Methyl-4-oxo-methyl ester (CAS 90647-21-5), hexanoic acid, 4-Ethyl-5-oxo-methyl ester (CAS 90647-24-8), heptanoic acid, 3-Methyl-5-oxo-methyl ester (CAS 103252-99-9), hexanoic acid, 2-Ethyl-5-oxo-methyl ester (CAS 103260-39-5), hexanoic acid 3-acetyl methyl ester (CAS 1081559-93-4), heptanoic acid 5-Methyl-6-oxo-methyl ester (CAS 344295-02-9), 3-Methyl-4-oxo-methyl ester of heptanoic acid (CAS 64712-01-2), methyl 2-(1-methylethyl)-4-oxopentanoate (CAS 99183-33-2), methyl 2,3-dimethyl-4-oxohexanoate (CAS 86044-19-1), ethyl 2-ethyl-4-oxopentanoate (CAS 101514-30-1), ethyl 5-oxo ester of hexanoic acid (CAS 13984-57-1), ethyl 3-methyl-4-oxohexanoate (CAS 42895-72-7), ethyl 2,3-dimethyl-4-oxopentanoate (CAS 136964-44-8), ethyl 4-oxo ester of hexanoic acid (CAS 3249-33-0), the 6-oxo-ethyl ester of , heptanoic acid (CAS 30956-41-3), 1-methylethyl 4-oxohexanoate (CAS 939422-07-8), pentanoic acid 2-ethyl-4-oxoethyl ester (CAS 101514-30-1), hexanoic acid 2-ethyl-5-methyl-4-oxomethyl ester (CAS 1195311-69-3).

[0059] In one embodiment, at least one oxo-ester is a levulinate.

[0060] In one embodiment, at least one oxo-ester is a levulinate selected from the group including: methyl levulinate (CAS 624-45-3), ethyl levulinate (CAS 539-88-8), propyl levulinate (645-67-0), isopropyl levulinate (CAS 21884-26-4), butyl levulinate (CAS 2052-15-5), isobutyl levulinate (CAS 3757-32-2), tert-butyl levulinate (CAS 2854-10-6), s-butyl levulinate (CAS 85734-01-6), penthyl levulinate (CAS 20279-49-6), hexyl levulinate (CAS 24431-34-3), levulinate of octyl (CAS 41780-57-8), or mixtures thereof.

[0061] In one embodiment, at least one oxo-ester is a methyl levulinate.

[0062] In one embodiment, at least one oxo-ester is a butyl levulinate.

[0063] In one embodiment, at least one oxo-ester is an ethyl levulinate.

[0064] In one embodiment, the oxo-ester comprises an ethyl levulinate and / or a le butyl vulinate.

[0065] In one embodiment, the oxo-ester consists of an ethyl levulinate and / or a butyl levulinate.

[0066] In one embodiment, the oxo-ester has a molecular mass less than or equal to 200g / mol.

[0067] In one embodiment, the oxo-ester has a molecular mass less than or equal to 180 g / mol.

[0068] In one embodiment, the oxo-ester has a molecular mass less than or equal to 160 g / mol.

[0069] In one embodiment, the oxo-ester has a molecular mass less than or equal to 150 g / mol.

[0070] In one embodiment, the composition according to the invention comprises a decane and an ethyl levulinate.

[0071] In one embodiment, the composition according to the invention comprises a dodecane and an ethyl levulinate.

[0072] In one embodiment, the composition according to the invention comprises a decane, a dodecane and an ethyl levulinate.

[0073] In one embodiment, the composition according to the invention comprises a branched alkane of 10 carbon atoms and an ethyl levulinate.

[0074] In one embodiment, the composition according to the invention comprises a branched alkane of 12 carbon atoms and an ethyl levulinate.

[0075] In one embodiment, the composition according to the invention comprises a decane and a butyl levulinate.

[0076] In one embodiment, the composition according to the invention comprises a dodecane and a butyl levulinate.

[0077] In one embodiment, the composition according to the invention comprises a decane, a dodecane and a butyl levulinate.

[0078] In one embodiment, the composition according to the invention comprises a branched alkane of 10 carbon atoms and a butyl levulinate.

[0079] In one embodiment, the composition according to the invention comprises a branched alkane of 12 carbon atoms and a butyl levulinate.

[0080] In one embodiment, the composition according to the invention comprises a decane, a dodecane, an ethyl levulinate and a butyl levulinate.

[0081] In one embodiment, the oxo-ester has a naturalness index greater than or equal to 60% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0082] In one embodiment, the oxo-ester has a naturalness index greater than or equal to 70% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0083] In one embodiment, the oxo-ester has a naturalness index greater than or equal to 75% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0084] In one embodiment, the oxo-ester has a naturalness index greater than or equal to 85% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0085] In one embodiment, the oxo-ester has a naturalness index greater than or equal to 90% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0086] Advantageously, the oxo-ester has a naturalness index of 100% carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0087] In one embodiment, the oxo-ester is obtained from raw materials of plant, bacterial or animal origin.

[0088] In one embodiment, the levulinate is obtained from biomass.

[0089] In one embodiment, the oxo-ester exhibits a biodegradability of at least 50% according to OECD method 301F.

[0090] In one embodiment, the oxo-ester exhibits a biodegradability of at least 60% according to the OECD 301F method.

[0091] In one embodiment, the oxo-ester exhibits a biodegradability of 50% to 80% according to the OECD 301F method.

[0092] In one embodiment, the oxo-ester exhibits a biodegradability of 50% to 70% according to the OECD 301F method.

[0093] In one embodiment, the oxo-ester exhibits a biodegradability of 50% to 60% according to the OECD 301F method.

[0094] In one embodiment, the oxo-ester exhibits a biodegradability of 60 to 70% according to the OECD 301F method.

[0095] In one embodiment, the oxo-ester exhibits a biodegradability of 70 to 80% according to the OECD 301F method.

[0096] In one embodiment, the composition according to the invention comprises a content of an oxo-ester of formula I, from 10% to 50% (v / v), by volume relative to the total volume of the composition according to the invention.

[0097] In one embodiment, the composition according to the invention comprises a content of an oxo-ester of formula I, from 10% to 30% (v / v), relative to the total volume of the composition according to the invention.

[0098] In one embodiment, the composition according to the invention comprises a content of an oxo-ester of formula I, of 10% to 20% (v / v), relative to the total volume of the composition according to the invention.

[0099] In one embodiment, the composition according to the invention comprises a butyl levulinate content of at least 1% (v / v), by volume relative to the total volume of the composition according to the invention.

[0100] In one embodiment, the composition according to the invention comprises a butyl levulinate content of at least 5% (v / v), by volume relative to the total volume of the composition according to the invention.

[0101] In one embodiment, the composition according to the invention comprises a butyl levulinate content of 1 to 60% (v / v), by volume relative to the total volume of the composition according to the invention.

[0102] In one embodiment, the composition according to the invention comprises a butyl levulinate content of 5 to 25% (v / v), by volume relative to the total volume of the composition according to the invention.

[0103] In one embodiment, the composition according to the invention comprises a butyl levulinate content of approximately 5% (v / v), by volume relative to the total volume of the composition according to the invention.

[0104] In one embodiment, the composition according to the invention comprises an ethyl levulinate content of at least 1% (v / v), by volume relative to the total volume of the composition according to the invention.

[0105] In one embodiment, the composition according to the invention comprises an ethyl levulinate content of at least 5% (v / v), by volume relative to the total volume of the composition according to the invention.

[0106] In one embodiment, the composition according to the invention comprises an ethyl levulinate content of 1% to 60% (v / v), by volume relative to the total volume of the composition according to the invention.

[0107] In one embodiment, the composition according to the invention comprises an ethyl levulinate content of 5% to 25% (v / v), by volume relative to the total volume of the composition according to the invention.

[0108] In one embodiment, the composition according to the invention comprises an ethyl levulinate content of approximately 5% (v / v), by volume relative to the total volume of the composition according to the invention.

[0109] In one embodiment, the composition according to the invention comprises an alkane content of formula CnH2n+2 with n<12 of 50% to 90% (v / v), by volume relative to the total volume of the composition according to the invention.

[0110] In one embodiment, the composition according to the invention comprises an alkane content of formula CnH2n+2 with n<12 of 70% to 90% (v / v), relative to the total volume of the composition according to the invention.

[0111] In one embodiment, the composition according to the invention comprises an alkane content of formula CnH2n+2 with n<12 of 80% to 90% (v / v), relative to the total volume of the composition according to the invention.

[0112] In one embodiment, the composition according to the invention comprises a decane content of at least 1% (v / v) by volume relative to the total volume of the composition according to the invention.

[0113] In one embodiment, the composition according to the invention comprises a decane content of at least 5% (v / v) by volume relative to the total volume of the composition according to the invention.

[0114] In one embodiment, the composition according to the invention comprises a decane content of 1% to 50% (v / v) by volume relative to the total volume of the composition according to the invention.

[0115] In one embodiment, the composition according to the invention comprises a decane content of 5% to 30% (v / v) by volume relative to the total volume of the composition according to the invention.

[0116] In one embodiment, the composition according to the invention comprises a decane content of 7.5% to 20% (v / v) by volume relative to the total volume of the composition according to the invention.

[0117] In one embodiment, the composition according to the invention comprises a dodecane content of at least 20% (v / v) by volume relative to the total volume of the composition according to the invention.

[0118] In one embodiment, the composition according to the invention comprises a dodecane content of at least 30% (v / v) by volume relative to the total volume of the com- position according to the invention.

[0119] In one embodiment, the composition according to the invention comprises a dodecane content of 30% to 80% (v / v) by volume relative to the total volume of the composition according to the invention.

[0120] In one embodiment, the composition according to the invention comprises a dodecane content of 40% to 75% (v / v) by volume relative to the total volume of the composition according to the invention.

[0121] In one embodiment, the composition according to the invention comprises a proportion of decane from 5% to 30% (v / v) by volume relative to the total volume of alkanes of formula CnH2n+2 with n<12.

[0122] In one embodiment, the composition according to the invention comprises a proportion of decane of 10% to 20% (v / v) by volume relative to the total volume of alkanes of formula CnH2n+2 with n<12.

[0123] In one embodiment, the composition according to the invention comprises a proportion of dodecane of 70% to 95% (v / v) by volume relative to the total volume of alkanes of formula CnH2n+2 with n<12.

[0124] In one embodiment, the composition according to the invention comprises a proportion of dodecane of 80% to 90% (v / v) by volume relative to the total volume of alkanes of formula CnH2n+2 with n<12.

[0125] In one embodiment, the composition according to the invention does not include petrochemical derivatives.

[0126] In one embodiment, the composition does not include shea butter and / or shea butter extract.

[0127] In one embodiment, the composition according to the invention further comprises at least one oil.

[0128] Another object according to the present invention therefore relates to a composition characterized in that it comprises: a. at least one alkane of formula CnH2n+2 with n<12, at a content of 40% to 95% (v / v) by volume relative to the total volume of the composition and b. at least one oxo-ester of formula I:

[0129] [Chem.3] O Formula I

[0130] in which, - Ri is chosen from the group consisting of linear or branched alkyls comprising 1 to 8 carbon atoms; - R2, R3 and R4, identical or different, are chosen from the group formed by the hydrogen atom and / or linear or branched alkyls comprising 1 to 4 carbon atoms; and - n' is a natural number from 1 to 4 at a content of 5% to 60% (v / v) by volume relative to the total volume of the composition according to the invention. a. at least one oil.

[0131] In an embodiment of the composition comprising at least one oil, at least one oxo-ester is chosen from among the oxo-esters of formula II:

[0132] [Chem.4] R2 O Formula II

[0133] in which, - R' i is chosen from the group consisting of linear or branched alkyls comprising 1 to 4 carbon atoms; - R2, Ri and R4, identical or different, are chosen from the group constituted by the hydrogen atom or linear or branched alkyls comprising 1 to 4 carbon atoms; and - n' is a natural number between 1 and 4.

[0134] In an embodiment of the composition comprising at least one oil, at least one oxo-ester is chosen from among the oxo-esters of formula I in which R2 and R3 are hydrogen atoms, R4 is a methyl group and n is equal to 1.

[0135] In an embodiment of the composition comprising at least one oil, at least one oxo-ester is chosen from among the oxo-esters of formula II, in which R2 and R3, identical or different, are chosen from the group consisting of the hydrogen atom, the methyl group or the ethyl group, I^ is chosen from the group consisting of linear or branched alkyls comprising from 1 to 3 carbon atoms and n' is a natural number between 1 and 3.

[0136] In an embodiment of the composition comprising at least one oil, at least one oxo-ester is chosen from among the oxo-esters of formula II in which R2 and R3 are a hydrogen atom, R4 is a methyl group and n' is equal to 1.

[0137] The presence of oil in the composition has the advantage of providing lubricating properties. It also has the advantage of depositing a protective film on the surface, preventing fouling. Finally, the presence of oil increases the degreasing power of the composition.

[0138] In one embodiment, the oil comprises an oil of vegetable and / or synthetic origin.

[0139] In one embodiment, the composition according to the invention does not include mineral oil.

[0140] In one embodiment, the oil comprises a hydrocarbon, silicone, fluorinated and / or fluorosiliconized oil.

[0141] For the purposes of the present invention, hydrocarbon oil means an oil essentially consisting of carbon atoms, hydrogen and possibly oxygen and / or nitrogen atoms.

[0142] In one embodiment, these hydrocarbon oils are chosen from the group of linear or branched alkanes of mineral or synthetic origin such as linear or branched alkanes of 17 to 40 carbon atoms, (poly)esters and (poly)ethers, and in particular (poly)esters of C2-C24 acids (preferably C6-C20), C6-C20 fatty acid triglycerides, vegetable oils, dialkyl carbonates, branched and / or unsaturated fatty acids and / or branched and / or unsaturated fatty alcohols and mixtures thereof.

[0143] In one embodiment, the silicone oils are chosen from the group comprising phenyl silicone oils, non-volatile polydimethylsiloxanes, or derivatives of non-volatile polydimethylsiloxanes and their mixtures.

[0144] In one embodiment, the oil comprises an oil selected from the group consisting of non-volatile linear or branched alkanes.

[0145] In one embodiment, the non-volatile linear or branched alkanes are chosen from the group consisting of linear or branched alkanes of 17 to 40 carbon atoms.

[0146] In one embodiment, the oil comprises a vegetable oil.

[0147] In one embodiment, the oil comprises a vegetable hydrocarbon oil.

[0148] In one embodiment, the oil comprises a vegetable hydrocarbon oil chosen from the group including wheat germ, sunflower, grapeseed, sesame, coconut, apricot, corn, avocado, soybean, olive, sweet almond, cottonseed, palm, macadamia, rapeseed, jojoba, hazelnut, poppy, alfalfa, pumpkin, blackcurrant, squash, evening primrose, barley, and their mixtures.

[0149] In one embodiment, the composition according to the invention does not include castor oil.

[0150] In one embodiment, the oil comprises coconut oil.

[0151] In one embodiment, the oil consists of coconut oil.

[0152] In one embodiment, the composition according to the invention comprises a content in oil less than or equal to 30% (v / v) by volume of oil relative to the total volume of the composition according to the invention.

[0153] In one embodiment, the composition according to the invention comprises an oil content less than or equal to 20% (v / v) by volume of oil relative to the total volume of the composition according to the invention.

[0154] In one embodiment, the composition according to the invention comprises an oil content less than or equal to 15% (v / v) by volume of oil relative to the total volume of the composition according to the invention.

[0155] In one embodiment, the composition according to the invention comprises an oil content that is 5 to 20% (v / v) lower by volume of oil compared to the total volume of the composition according to the invention.

[0156] In one embodiment, the composition according to the invention has a naturalness index greater than or equal to 60% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0157] In one embodiment, the composition according to the invention has a naturalness index greater than or equal to 70% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0158] In one embodiment, the composition according to the invention has a naturalness index greater than or equal to 75% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0159] In one embodiment, the composition according to the invention has a naturalness index greater than or equal to 85% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0160] In one embodiment, the composition according to the invention has a naturalness index greater than or equal to 90% of carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0161] Advantageously, the composition according to the invention has a naturalness index of 100% carbon 14 (14C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

[0162] In one embodiment, the composition according to the invention is obtained from raw materials of plant, bacterial or animal origin.

[0163] In one embodiment, the composition according to the invention exhibits a biodegradable biodegradability of at least 50% according to OECD method 301F.

[0164] In one embodiment, the composition according to the invention exhibits biodegradability of at least 60% according to OECD method 301F.

[0165] In one embodiment, the composition according to the invention exhibits biodegradability of 50% to 80% according to OECD method 301F.

[0166] In one embodiment, the composition according to the invention exhibits biodegradability of 50% to 70% according to OECD method 301F.

[0167] In one embodiment, the composition according to the invention exhibits biodegradability of 50% to 60% according to OECD method 301F. a biodegradability

[0168] In one embodiment, the composition according to the invention exhibits a biodegradability of 60% to 70% according to OECD method 301F. a biodegradability

[0169] In one embodiment, the composition according to the invention exhibits a biodegradability of 70% to 80% according to OECD method 301F. a biodegradability

[0170] In one embodiment, the composition according to the invention exhibits a density from 0.6 to 1 g / cm3.

[0171] In one embodiment, the composition according to the invention has a density of 0.75 to 0.85 g / cm3.

[0172] In one embodiment, the composition according to the invention has a dynamic viscosity of 1 to 3 centipoise.

[0173] In one embodiment, the composition according to the invention has a dynamic viscosity of 1.5 to 2.75 centipoise.

[0174] In one embodiment, the composition according to the invention has a kinematic viscosity of 1.5 to 3 centistokes.

[0175] In one embodiment, the composition according to the invention has a kinematic viscosity of 1.8 to 2.6 centistokes.

[0176] The invention also relates to an aerosol comprising the composition according to the invention and a propellant gas.

[0177] In one embodiment, the propellant gas is chosen from the group of carbon dioxide (CO2), butane, propane, isobutane, dimethyl ether, nitrogen, nitrous oxide or mixtures thereof.

[0178] In one embodiment, the propellant gas is chosen from the group of carbon dioxide (CO2), butane, propane or mixtures thereof.

[0179] In one embodiment, the propellant gas is carbon dioxide.

[0180] In one embodiment, the aerosol according to the invention is packaged in a aerosol can.

[0181] In one embodiment, the internal pressure of the aerosol can is at least 7 bars.

[0182] In one embodiment, the internal pressure of the aerosol can is at minus 8 bars.

[0183] In one embodiment, the aerosol bomb includes a nozzle allowing a mist diffusion at least 20 cm wide.

[0184] In one embodiment, the aerosol bomb includes a nozzle allowing a mist diffusion at least 30 cm wide.

[0185] In one embodiment, the aerosol can allows a flow rate of at least 1 gram per second.

[0186] In one embodiment, the aerosol can allows a flow rate of at least 2 grams per second.

[0187] In one embodiment, the aerosol can allows a flow rate of at least 4 grams per second.

[0188] Another object according to the present invention relates to a method for degreasing, cleaning, protecting, loosening, polishing and / or lubricating a surface of an object comprising at least one step of applying to said surface a composition comprising: a. At least one alkane with the formula CnH2n+2, where n < 12, and b. At least one oxo-ester of formula I,

[0189] [Chem.5] Formula I

[0190] in which, - Ri is chosen from the group consisting of linear or branched alkyls comprising 1 to 8 carbon atoms; - R2, R2 and R4, whether identical or different, are chosen from the group formed by the hydrogen atom and / or linear or branched alkyls comprising 1 to 4 carbon atoms; and - n' is a natural number from 1 to 4.

[0191] In one embodiment of the process according to the invention, the composition is any one of the compositions according to the invention and / or the aerosol according to the invention.

[0192] In one embodiment, the process includes at least one step of applying a composition comprising: a. at least one alkane with the formula CnH2n+2 with n<12, at a content of 40% to 95% (v / v) by volume relative to the total volume of the composition and b. at least oxo-ester of formula II:

[0193] [Chem.6] Formula II

[0194] in which, - R' i is chosen from the group consisting of linear or branched alkyls comprising 1 to 4 carbon atoms; - R2, R3 and R4, identical or different, are chosen from the group formed by the hydrogen atom or linear or branched alkyls comprising 1 to 4 carbon atoms; and - n' is a natural number between 1 and 4, the content of said oxo-ester being from 5% to 60% (v / v) by volume relative to the total volume of the composition according to the invention.

[0195] In one embodiment, the process includes the application of a composition comprising a. At least one alkane of formula CnH2n+2 with n<12, at a content of 40% to 95% (v / v) by volume relative to the total volume of the composition and b. At least one oxo-ester of formula I,

[0196] [Chem.7] Formula I

[0197] in which, - Ri is chosen from the group consisting of linear or branched alkyls comprising 1 to 8 carbon atoms; - R2, R3 and R4, identical or different, are chosen from the group formed by the hydrogen atom and / or linear or branched alkyls comprising 1 to 4 carbon atoms; and - n' is a natural number from 1 to 4 the content of said oxo-ester being from 5% to 60% (v / v) by volume relative to the total volume of the composition according to the invention. a. At least one oil.

[0198] In one embodiment, the surface of an object is a surface of a metallic object.

[0199] In one embodiment, the object comprises all or part of an electronic component, a mechanical part, an automotive part, a cable, a chain and / or a tool.

[0200] In one embodiment, the process makes it possible to protect the surface against moisture, rust, oxidation and / or frost.

[0201] In one embodiment, the application is carried out by dipping, by spraying and / or by aerosol spraying.

[0202] In one embodiment, the application has a duration of less than 60 minutes.

[0203] In one embodiment, the application has a duration of less than 15 minutes. Description of the figures

[0204] Figures [Fig.1] to [Fig.5] are photographs illustrating the evolution over time of the degreasing effect on burnt grease, by soaking in formulas 1 to 4 or WD40, respectively in that order, according to example 2.

[0205] Figures [Fig.6] to [Fig. 10] are photographs illustrating the evolution over time of the degreasing effect on burnt grease, by spraying formulas 1 to 4 or WD40, respectively in that order, according to example 3.

[0206] Figures [Fig. 11] to [Fig. 16] are photographs illustrating the evolution over time of the degreasing effect on cooked grease, by spraying formulas 1 to 4 or WD40, respectively in that order, according to example 4.

[0207] The [Fig. 17] is the curve of evolution of the percentage of evaporation as a function of time according to example 6, with, from the curve having the fastest growth to the slowest; formula 6, WD40®, formula 5, formula 4, formula 3 and formula 1.

[0208] In the examples, all percentages are expressed in volume unless otherwise stated, temperature is expressed in degrees Celsius unless otherwise stated, and pressure is atmospheric pressure unless otherwise stated. Examples

[0209] Example 1: Preparation of compositions according to the invention.

[0210] The compositions were prepared by mixing in a beaker at temperature ambient in the proportions as described in Table 1.

[0211] Vegelight® Silk marketed by BIOSYNTHIS is a mixture of alkanes of formula CnH2n+2 with n<12 of plant origin, comprising 17% (v / v) by volume of decane and 83% (v / v) by volume of dodecane relative to the total weight of the alkane mixture. [Tables 1] Ethyl levulinate (v / v %) Butyl levulinate (v / v %) Vegelight® Silk Iso CIO (v / v %) Dodecene (v / v %) Coconut oil (v / v %) Formula 1 (comparative) 50 50 Formula 2 5 5 90 Formula 3 25 25 50 Formula 4 5 5 75 15 Formula 5 (comparative) 15 15 55 15 Formula 6 15 15 55 15 Example 2: Evaluation of the degreasing effect of the composition according to the invention by soaking it on burnt grease:

[0212] Stainless steel plates were dipped in lithium grease.

[0213] The deposited lithium grease was then burned off with a blowtorch flame.

[0214] The plates were then placed in test tubes containing one of the formulas according to example 1 or WD40®.

[0215] The plates were finally photographed at t=0 min, 15 min, 30 min, 60 min, 75 min, 120 min, as shown in figures [Fig.1] to [Fig.5], in the order of appearance in the table below respectively.

[0216] The times at which the degreasing effect was first observed are shown in Table 2. [Tables 2] Time (in min) Formula 1 (comparison) No degreasing effect Formula 2 60 Formula 3 30 Formula 4 15 WD40® 15 Conclusion: Formula 1, corresponding to the use of oxo-ester alone, did not produce a degreasing effect by soaking. With formula 2, when the proportion of alkane (CnH2n+2 with n<12) is at least equal to the proportion of oxo-ester, a degreasing effect is observed after 60 minutes. With formula 3, this effect is observed more rapidly as the amount of alkane increases. With formula 4, the presence of a vegetable oil allows for a degreasing effect in a time comparable to that of the reference formulation, WD40®.

[0217] Example 3: Evaluation of the degreasing effect on burnt grease by spraying the composition according to the invention:

[0218] Stainless steel plates were dipped in lithium grease.

[0219] The deposited lithium grease was then burned off with a blowtorch flame.

[0220] The formulas according to example 1 or WD40® were then applied by spraying risation in equivalent quantities on the plates.

[0221] The plates were finally photographed at t=0 min, 15 min, 30 min, 60 min, 75 min, 120 min, as shown in figures [Fig.6] to [Fig. 10] respectively, in the order of appearance in the table below.

[0222] The times at which the degreasing effect was first observed are shown in Table 3. [Tables 3] Time (in min) Formula 1 (comparison) 15 Formula 2 120 Formula 3 120 Formula 4 15 WD40® 15 Conclusion: Formula 1 and formula 4 provide a degreasing effect. a duration comparable to that of the reference formulation; WD40®. Formulas 2 and 3 provide a degreasing effect, but over a much longer period.

[0223] Example 4: Evaluation of the degreasing effect on cooked fat by spraying the composition according to the invention:

[0224] Stainless steel plates were dipped in lithium grease.

[0225] The deposited lithium grease was then baked at 300°C.

[0226] The formulas according to example 1 or WD40® were then sprayed on the plates in equivalent quantities.

[0227] The plates were finally photographed at t=0min, 15min, 30 min, 60 min, 75 min, 120 min, as shown in figures [Fig. 11] to [Fig. 16] respectively, in the order of appearance in the table below.

[0228] The times at which the degreasing effect was first observed are shown in the table and figures. [Tables 4] Time (in min) Formula 1 (comparison) 15 Formula 3 15 Formula 4 15 Formula 5 (comparison) No degreasing effect Formula 6 15 WD40® No degreasing effect

[0229] Conclusion: Formulas 3, 4, and 6 according to the invention demonstrated an effect comparable to that of formula 1 comprising only oxo-esters. Conversely, formula 5, comprising an alkene instead of the alkane, as well as WD40®, demonstrated no degreasing effect.

[0230] Example 5: Measurements of viscosity and density of compositions according to the invention.

[0231] The density and viscosities of formulas 1 to 6 and of WD40 were measured with a Brookfield viscometer (ULA module, speed 100 rpm).

[0232] The results are shown in Table 5. [Tables 5] Density (20°C g / cm³) Viscosity (centipoise) Viscosity (centistokes) Formula 1 (comparative) 0.9926 2.41 2.42 Formula 2 0.7679 1.39 1.81 Formula 3 0.7830 1.45 1.85 Formula 4 0.7879 1.99 2.52 Formula 5 (comparative) 0.8401 2.58 2.58 Formula 6 0.8231 1.67 2.02 WD40® 0.8026 2.99 3.76

[0233] Example 6: Evaluation of the volatility of compositions according to the invention.

[0234] The percentage of evaporation over time for the formulas according to example 1 and WD40® was measured with a LABOMODERNE THERMOBALANCE KERN DBS 60-3 desiccator, at 20°C, under a controlled atmosphere.

[0235] The evaporation curve obtained is shown in [Fig.17].

[0236] Formula 6 according to the invention is the most volatile. WD40® has the second highest volatility. The formula consisting exclusively of levulinate esters is the least volatile.

[0237] The compositions according to the invention therefore have better volatility than levulinate esters alone.

[0238] Example 7: Evaluation of the skin compatibility of a composition according to the invention.

[0239] A clinical test was carried out on a panel of 11 people aged 23 to 66 years in order to verify the skin compatibility of the product by application of an occlusive patch (Finn Chamber ® AQUA Patch Test) containing an amount of 0.02 ml of formula 4 according to example 1 for 48h on the skin of the subject's back.

[0240] Thirty minutes after removal of the patch, a total absence of skin manifestations (erythema, edema, dryness, desquamation, papules, vesicles, detergent effect or reflectivity) was observed by the operator.

[0241] The composition according to the invention is therefore compatible with the skin.

Claims

Demands

1. Composition characterized in that it comprises: a. at least one alkane of formula CnH2n+2 with n<12, at a content of 40% to 95% (v / v) by volume relative to the total volume of the composition and b. at least one oxo-ester of formula I, [Chem. 8] Formula I in which, - Ri is chosen from the group consisting of linear or branched alkyls comprising 1 to 8 carbon atoms; - R2, R3 and R4, identical or different, are chosen from the a group consisting of the hydrogen atom and / or linear or branched alkyl groups comprising 1 to 4 carbon atoms; and - n' is a natural number from 1 to 4 the content of said oxo-ester being from 5% to 60% (v / v) by volume relative to the total volume of the composition, and said at least one alkane of formula CnH2n+2 with n<12 is chosen from the group comprising: dodecane, 2-methyl undecane (CAS 7045-71-8), 3-methyl undecane (CAS 1002-43-3), 4-methyl undecane (CAS 2980-69-0), 5-methyl undecane (CAS 1632-70-8), 6-methyl undecane (CAS 17302-33-9), 2,4-dimethyl decane (CAS 2801-84-5), 4,4-dimethyl decane (CAS 17312-39-9), 3,5-dimethyl decane (17312-48-0), 2,5-dimethyl decane (CAS 17312-50-4), 2,3-dimethyl decane (17312-44-6), 3,3-dimethyl decane (17302-38-4), 3,7-dimethyl decane (CAS 17312-54-8), 3,4,6-trimethyl nonane (CAS 62184-24-1), 3,5,6-trimethyl nonane (CAS 62184-26-3), 3,5,7-trimethyl nonane (CAS 62184-27-4), 2,5,7-trimethyl nonane (CAS 62184-14-9), 2,5,6-trimethyl nonane (CAS 62184-13-8), 2,5,7-trimethyl nonane (CAS 62184-14-9), 2,5,8-trimethyl nonane (CAS 49557-09-7), 3,3,4,5-tetramethyl octane (CAS 62185-21-1), 2,3,4,5-tetramethyl octane (CAS 62199-27-3), 2,2,4,5-tetramethyl octane (CAS 62183-80-6), 2,2,5,7-tetramethyl octane (CAS 62199-19-3), 2,3,4,7-tetramethyl octane (CAS 62199-29-5), 2,4,4,7-tetramethyl octane (CAS 35866-96-7), 3-ethyl-4-methyl nonane (CAS 62184-45-6), 3-ethyl-4,5-dimethyl octane (CAS 62183-72-6), 2,5-dimethyl-6-ethyl octane (CAS 62183-50-0), undecane (CAS 1120-21-4), 2-methyl decane (CAS 6975-98-0), 4-methyl decane (CAS 2847-72-5), 3-methyl decane (13141-34-3), 5-methyl decane (CAS 13151-35-4), 2,6-dimethyl nonane (CAS 17302-28-2), 3,7-dimethyl nonane (CAS 17302-32-8), 4,5-dimethyl nonane (CAS 17302-23-7), 2,3-dimethyl nonane (CAS 2884-06-2), 2,4,6-trimethyl octane (CAS 62016-37-9), 2,5,6-trimethyl octane (CAS 62016-14-2), decane (CAS 124-18-5), 2-methyl nonane (CAS 871-83-0), 4-methyl nonane (CAS 17301-94-9), 3-methyl nonane (CAS 5911-04-6), 3-ethyl octane (CAS 5881-17-4), 2,2-dimethyl octane (CAS 15869-87-1), the 2,3-Dimethyloctane (CAS 7146-60-3), 2,5-Dimethyloctane (CAS 15869-89-3), 3,5-Dimethyloctane (CAS 15869-93-9), 4-Propyl heptane (CAS 3178-29-8), 3-Ethyl-2-Methylheptane (CAS 14676-29-0), 2,2,3-Trimethylheptane (CAS 52896-92-1), 2,3,5-Trimethylheptane (CAS 20278-85-7), 2,3,6-Trimethylheptane (CAS 4032-93-3), 3,3,4-Trimethylheptane (CAS 20278-87-9), 2,3,4-Trimethylheptane (CAS 52896-95-4), 2,2,4-Trimethylheptane (CAS 14720-74-2), 3,3-Diethylhexane (CAS 17302-02-2), 2,2,3,3-Tetramethylhexane (CAS 13475-81-5), 3-Ethyl-2,2,3-Trimethylpentane (CAS 52897-17-3), nonane (111-84-2), 2-methyl octane (3221-61-2), 3-methyl octane (CAS 2216-33-3), 4-methyl octane (CAS 2216-34-4), 2,4-dimethyl heptane (CAS 2213-23-2), 2,6-dimethyl heptane (CAS 1072-05-5), 2,3-dimethyl heptane (CAS 3074-71-3), 2,5-dimethyl heptane (CAS 2216-30-0), 2,2-dimethyl heptane (CAS 1071-26-7), 2,2,5-trimethyl hexane (CAS 3522-94-9), 2,3,5-trimethyl hexane (CAS 1069-53-0), 2,2,4-trimethyl hexane (CAS 167476-26-5), 2,3,4-trimethyl hexane (CAS 921-47-1), 3-ethyl heptane (CAS, 15869-80-4), 4-ethyl heptane (CAS 2216-32-2), octane (CAS 111-65-9), 2,2,4-trimethyl heptane (CAS 592-27-8), 3-methyl heptane (CAS 589-81-1), 2-methyl heptane (CAS 592-27-8), 2,3,4-trimethyl pentane (CAS 565-75-3), 2,4-dimethyl hexane (CAS 589-43-5), 2,5-dimethyl hexane (CAS 592-13-2), 3,4-dimethyl hexane (CAS 583-48-2), 3-ethyl hexane (CAS 619-99-8), 4-methyl heptane (CAS 589-53-7), and their mixtures.

2. Composition according to any one of the preceding claims, characterized in that at least one alkane of formula CnH2n+2 with n<12 is a bioalkane said bioalkane being an alkane whose organic carbon present in the compound or composition is 100% of plant origin (14C) by radiocarbon analysis according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.

3. Composition according to any one of the preceding claims, characterized in that the alkanes of formula CnH2n+2 with n<12 comprise a mixture of decane and dodecane.

4. Composition according to any one of the preceding claims, characterized in that at least one oxo-ester is a levulinate.

5. Composition according to any one of claims 1 to 3, characterized in that the oxo-ester comprises a butyl levulinate and / or an ethyl levulinate.

6. Composition according to any one of the preceding claims, characterized in that it further comprises at least one oil of vegetable origin.

7. Composition according to claim 6, characterized in that the oil content is less than or equal to 30% (v / v) by volume of oil relative to the total volume of the composition according to the invention.

8. Aerosol comprising a composition according to any one of the preceding claims and a propellant gas.

9. A method for degreasing, cleaning, protecting, loosening, polishing and / or lubricating a surface of an object comprising at least one step of applying to said surface a composition comprising: a. At least one alkane of formula CnH2n+2 with n<12, and b. At least one oxo-ester of formula I, [Chem.9] Formula I in which, - Ri is chosen from the group consisting of linear or branched alkyls comprising 1 to 8 carbon atoms; - R2, Ri and R4, identical or different, are chosen from the a group consisting of the hydrogen atom and / or linear or branched alkyl groups comprising 1 to 4 carbon atoms; and - n' is a natural number from 1 to 4, said at least one alkane of formula CnH2n+2 with n<12 is chosen from the group comprising: dodecane, 2-methyl undecane (CAS 7045-71-8), 3-methyl undecane (CAS 1002-43-3), 4-methyl undecane (CAS 2980-69-0), 5-methyl undecane (CAS 1632-70-8), 6-methyl undecane (CAS 17302-33-9), 2,4-dimethyl decane (CAS 2801-84-5), 4,4-dimethyl decane (CAS 17312-39-9), 3,5-dimethyl decane (CAS 17312-48-0), 2,5-dimethyl decane (CAS 17312-50-4), 2,3-Dimethyl decane (17312-44-6), 3,3-Dimethyl decane (17302-38-4), 3,7-Dimethyl decane (CAS 17312-54-8), 3,4,6-Trimethyl nonane (CAS 62184-24-1), 3,5,6-Trimethyl nonane (CAS 62184-26-3), 3,5,7-Trimethyl nonane (CAS 62184-27-4), 2,5,7-Trimethyl nonane (CAS 62184-14-9), 2,5,6-Trimethyl nonane (CAS 62184-13-8), 2,5,7-Trimethyl nonane (CAS 62184-14-9), 2,5,8-Trimethyl nonane (CAS 49557-09-7), 3,3,4,5-tetramethyl octane (CAS 62185-21-1), 2,3,4,5-tetramethyl octane (CAS 62199-27-3), 2,2,4,5-tetramethyl octane (CAS 62183-80-6), 2,2,5,7-tetramethyl octane (CAS 62199-19-3), 2,3,4,7-tetramethyl octane (CAS 62199-29-5), 2,4,4,7-tetramethyl octane (CAS 35866-96-7), 3-ethyl-4-methyl nonane (CAS 62184-45-6), 3-ethyl-4,5-dimethyl octane (CAS 62183-72-6), 2,5-Dimethyl-6-ethyl octane (CAS 62183-50-0), undecane (CAS 1120-21-4), 2-methyl decane (CAS 6975-98-0), 4-methyl decane (CAS 2847-72-5), 3-methyl decane (CAS 13141-34-3), 5-methyl decane (CAS 13151-35-4), 2,6-dimethyl nonane (CAS 17302-28-2), 3,7-dimethyl nonane (CAS 17302-32-8), 4,5-dimethyl nonane (CAS 17302-23-7), 2,3-dimethyl nonane (CAS 2884-06-2), 2,4,6-trimethyl octane (CAS 62016-37-9), 2,5,6-trimethyl octane (CAS 62016-14-2), decane (CAS 124-18-5), 2-methyl nonane (CAS 871-83-0), 4-methyl nonane (CAS 17301-94-9), 3-methyl nonane (CAS 5911-04-6), 3-ethyl octane (CAS 5881-17-4), 2,2-dimethyl octane (CAS 15869-87-1), 2,3-dimethyl octane (CAS 7146-60-3), 2,5-dimethyl octane (CAS 15869-89-3), 3,5-dimethyl octane (CAS 15869-93-9), the 4-Propyl heptane (CAS 3178-29-8), 3-Ethyl-2-methyl heptane (CAS 14676-29-0), 2,2,3-Trimethyl heptane (CAS 52896-92-1), 2,3,5-Trimethyl heptane (CAS 20278-85-7), 2,3,6-Trimethylheptane (CAS 4032-93-3), 3,3,4-Trimethylheptane (CAS 20278-87-9), 2,3,4-Trimethylheptane (CAS 52896-95-4), 2,2,4-Trimethylheptane (CAS 14720-74-2), 3,3-Diethylhexane (CAS 17302-02-2), 2,2,3,3-Tetramethylhexane (CAS 13475-81-5), 3-Ethyl-2,2,3-Trimethylpentane (CAS 52897-17-3), Nonane (111-84-2), 2-Methyloctane (3221-61-2), 3-Methyloctane (CAS 2216-33-3), 4-methyl octane (CAS 2216-34-4), 2,4-dimethyl heptane (CAS 2213-23-2), 2,6-dimethyl heptane (CAS 1072-05-5), 2,3-dimethyl heptane (CAS 3074-71-3), 2,5-dimethyl heptane (CAS 2216-30-0), 2,2-dimethyl heptane (CAS 1071-26-7), 2,2,5-trimethyl hexane (CAS 3522-94-9), 2,3,5-trimethyl hexane (CAS 1069-53-0), 2,2,4-trimethyl hexane (CAS 167476-26-5), 2,3,4 trimethyl hexane (CAS 921-47-1), 3-ethyl heptane (CAS 15869-80-4), 4-ethyl heptane (CAS 2216-32-2), octane (CAS 111-65-9), 2,2,4-trimethyl heptane (CAS 592-27-8), 3-methyl heptane (CAS 589-81-1), 2-methyl heptane (CAS 592-27-8), 2,3,4-Trimethyl pentane (CAS 565-75-3), 2,4-Dimethyl hexane (CAS 589-43-5), 2,5-Dimethyl hexane (CAS 592-13-2), 3,4-Dimethyl hexane (CAS 583-48-2), 3-Ethyl hexane (CAS 619-99-8), 4-Methyl heptane (CAS 589-53-7), and mixtures thereof.

10. A method according to claim 9, wherein the composition is a composition as defined according to any one of claims 1 to 7 or an aerosol as defined according to claim 8.

11. A method according to any one of claims 9 or 10, wherein the surface is a surface of a metallic object.

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