Detergent composition, its preparation and use

Abstract

The present invention provides a cleaning composition contained in an aerosol spray can, which contains a liquid cleaning mixture including a) 25-35 parts by weight of a solvent selected from the group consisting of isohexane, isoheptane and n-heptane, b) 18-30 parts by weight of a dearomatized hydrocarbon solvent having 7-8 carbon atoms in the molecule, a distillation range of 120-160°C and a closed cup flash point of about 20°C, c) 5-15 parts by weight of a branched aliphatic alkane having 10-11 carbon atoms, a distillation range of 161-173°C and a closed cup flash point of about 44°C, d) 5-15 parts by weight of ethanol, e) 1-15 parts by weight of isopropanol, f) 1-10 parts by weight of acetone, and g) 0.01-0.2 parts by weight of an isotridecanol polyoxyethylene ether having an HLB value of 12-13, and a gas propellant. Also provided is a method for producing the cleaning composition and its use.

Description

[Technical Field]

[0001] The present invention relates to a cleaning composition contained in an aerosol spray can, a method for producing the same and its use. [Background technology]

[0002] In the field of vehicle (for example, automobile) repair, machine cleaning and maintenance, various detergent preparations are known.However, because it is difficult to remove accumulated oily dirt, and the surface of various parts is complicated and difficult to access, commercially available detergent preparations do not always satisfy the balance between good cleaning ability and health / environmental concerns. Summary of the Invention [Problem to be solved by the invention]

[0003] The object of the present invention is to provide a cleaning composition that has an excellent balance between cleaning ability and health / environmental concerns. Surprisingly, the cleaning composition of the present invention has strong cleaning ability, an appropriate drying speed, low toxicity and low odor, and is convenient for end users. [Means for solving the problem]

[0004] In one aspect, the present invention provides a cleaning composition contained in an aerosol spray can, comprising: a) 25 to 35 parts by weight of a solvent selected from the group consisting of isohexane, isoheptane and n-heptane, b) 18 to 30 parts by weight of a dearomatized hydrocarbon solvent having 7 to 8 carbon atoms in the molecule, a distillation range of 120 to 160°C, and a closed cup flash point of about 20°C; c) 5 to 15 parts by weight of a branched aliphatic alkane having 10 to 11 carbon atoms, a distillation range of 161 to 173°C and a closed cup flash point of about 44°C; d) 5 to 15 parts by weight of ethanol; e) 1 to 15 parts by weight of isopropanol; f) 1 to 10 parts by weight of acetone, and g) 0.01 to 0.2 parts by weight of isotridecanol polyoxyethylene ether having an HLB value of 12 to 13; a liquid detergent mixture comprising: - gas propellants, The present invention relates to a cleaning composition comprising:

[0005] In another aspect, the present invention provides a method for producing a pharmaceutical composition comprising: mixing components a) to g) to obtain a liquid detergent mixture; packaging the liquid detergent mixture in an aerosol spray can and sealing said can; and Filling gas propellants into sealed cans The present invention relates to a method for producing the cleaning composition of the present invention, comprising:

[0006] In yet another aspect, the present invention relates to the use of the detergent composition of the present invention in cleaning parts of a vehicle or machine, wherein the vehicle is preferably an automobile and the part is preferably a brake disc. DETAILED DESCRIPTION OF THE INVENTION

[0007] The invention will be described in more detail in the following sections. Each aspect described therein may be combined with any other aspect(s) unless expressly stated to the contrary. In particular, any feature indicated as being preferred or advantageous may be combined with any other feature(s) indicated as being preferred or advantageous.

[0008] Terms used in connection with the present invention shall be construed in accordance with the following definitions, unless the context clearly indicates otherwise.

[0009] As used herein, the singular forms "a," "an," and "the" include both singular and plural references unless the context clearly dictates otherwise.

[0010] As used herein, the terms "comprising," "comprises," and "comprised of" are synonymous with "including," "includes," "containing," or "contains," and are inclusive or open-ended and do not exclude additional, unrecited members, elements, or method steps.

[0011] The recitation of numerical endpoints includes all numbers and fractions subsumed within the respective ranges, as well as the recited endpoints.

[0012] Depending on the context, each numerical value may have a deviation of ±10% of the referenced numerical value, for example, the numerical value "5" represents 5±0.5, i.e., a numerical range of 4.5 to 5.5.

[0013] All documents cited herein are incorporated by reference in their entirety.

[0014] "Closed cup flash point" is measured according to ASTM D56.

[0015] "Distillation Range" is measured according to ASTM D86.

[0016] All operations, steps and methods are carried out at room temperature and atmospheric pressure unless the context indicates otherwise or clearly contradicts.

[0017] Unless otherwise defined, all terms used in disclosing the present invention, including technical and scientific terms, have the meaning commonly understood by one of ordinary skill in the art to which this invention belongs. As a further guide, definitions of terms are included to better understand the teachings of the present invention.

[0018] <Cleaning agent composition> In one aspect, the present invention provides a cleaning composition contained in an aerosol spray can, comprising: a) 25 to 35 parts by weight of a solvent selected from the group consisting of isohexane, isoheptane and n-heptane, b) 18 to 30 parts by weight of a dearomatized hydrocarbon solvent having 7 to 8 carbon atoms in the molecule, a distillation range of 120 to 160°C, and a closed cup flash point of about 20°C; c) 5 to 15 parts by weight of a branched aliphatic alkane having 10 to 11 carbon atoms, a distillation range of 161 to 173°C and a closed cup flash point of about 44°C; d) 5 to 15 parts by weight of ethanol; e) 1 to 15 parts by weight of isopropanol; f) 1 to 10 parts by weight of acetone, and g) 0.01 to 0.2 parts by weight of isotridecanol polyoxyethylene ether having an HLB value of 12 to 13; a liquid detergent mixture comprising: - gas propellants, The present invention relates to a cleaning composition comprising:

[0019] In some examples, the cleaning compositions of the present invention comprise: a) 28 to 32 parts by weight, preferably about 30 parts by weight, of isohexane, b) 18 to 22 parts by weight, preferably about 20 parts by weight, of a dearomatized hydrocarbon solvent having 7 to 8 carbon atoms in the molecule, a distillation range of 120 to 160°C and a closed cup flash point of about 20°C, e.g., D20; c) 5 to 10 parts by weight, preferably 10 parts by weight, of a branched aliphatic alkane having 10 to 11 carbon atoms, a distillation range of 161 to 173°C and a closed cup flash point of about 44°C, such as isoparaffin G, d) 8 to 10 parts by weight, preferably 10 parts by weight, of ethanol; e) 4 to 6 parts by weight, preferably 5 parts by weight, of isopropanol; f) 4 to 6 parts by weight, preferably 5 parts by weight, of acetone, and g) 0.1 to 0.2 parts by weight, preferably 0.1 parts by weight, of an isotridecanol polyoxyethylene ether having an HLB value of 12 to 13, preferably an HLB value of 12; a liquid detergent mixture comprising: - Gas propellant Includes.

[0020] The liquid detergent mixture according to the present invention has advantages including low toxicity, low cost, strong decomposition performance, and suitable drying speed. The combination of an aerosol spray can and a gas propellant makes it convenient for end users to use the detergent composition, increases the cleaning power applied to stains, and prevents residual detergent composition from accumulating on the walls or bottom of the container.

[0021] The detergent composition of the present invention has a cleaning ability of 90% or more, preferably 95% or more, and more preferably 99% or more, where cleaning ability refers to the ratio of the mass of soil removed from a soiled surface by the detergent composition to the total mass of soil on the soiled surface.

[0022] The cleaning composition of the present invention has a drying speed of 3 to 4 minutes, preferably 3 to 3.5 minutes. Here, the drying speed refers to the time it takes for the solvent in the cleaning composition to evaporate at room temperature and atmospheric pressure. A drying speed of 3 to 4 minutes, preferably 3 to 3.5 minutes, is advantageous because it ensures sufficient penetration into soiled objects and the desired cleaning efficiency.

[0023] <Component a)> The cleaning composition contains 25 to 35 parts by weight, preferably 28 to 32 parts by weight, of a solvent selected from the group consisting of isohexane, isoheptane, and n-heptane.

[0024] Isohexane, isoheptane and n-heptane have good decomposition performance for non-polar oily soils, high volatilization rate and low toxicity. Preferably, component a) is isohexane, which exhibits very high cleaning power and is cost-effective.

[0025] <Component b)> The cleaning composition comprises 18 to 30 parts by weight, preferably 18 to 22 parts by weight, of a dearomatized hydrocarbon solvent having 7 to 8 carbon atoms in the molecule, a distillation range of 120 to 160°C, and a closed cup flash point of about 20°C.

[0026] Dearomatized hydrocarbon solvents are environmentally friendly because they contain almost no aromatic components. They are typically a mixture of dearomatized aliphatic alkanes, primarily containing n-alkanes. They have good penetration and decomposition capabilities for non-polar oily stains, effectively removing oily stains from the surfaces of vehicles and machinery. They are miscible with component a) solvents, component c) branched aliphatic alkanes (isoparaffins), and component d) petroleum-based solvents, including ethanol.

[0027] Dearomatized hydrocarbon solvents are commercially available, for example, from Industrial Chemical Technologies, from Pure Chems under the trade name EXXSOL, or from Mobil.

[0028] Preferably, the dearomatized hydrocarbon solvent is D20, which is a mixture of 40 parts by weight of a C7 alkane and 60 parts by weight of a C8 alkane, with a distillation range of 120-160°C and a closed cup flash point of about 20°C.

[0029] <Ingredient c)> The cleaning composition comprises 5 to 15 parts by weight, preferably 5 to 10 parts by weight, of a branched aliphatic alkane having 10 to 11 carbon atoms, a distillation range of 161 to 173°C, and a closed cup flash point of about 44°C.

[0030] Branched aliphatic alkanes (also known as "isoparaffins") have low surface tension and strong cohesion, which allows them to penetrate and decompose non-polar oily stains effectively, removing them from vehicle and machinery surfaces. Isoparaffins are also easy to recycle and cost-effective. They have a low odor and are more biodegradable than aromatics, making them harmless to humans and the environment.

[0031] Isoparaffins are commercially available, for example, from Pure Chems under the trade name EXXSOL or from ExxonMobil.

[0032] Preferably, the isoparaffin is isoparaffin G. Isoparaffin G is a mixture of C10 branched aliphatic alkanes and C11 branched aliphatic alkanes, with a distillation range of 161-173°C and a closed cup flash point of about 44°C.

[0033] <Component d)> The detergent composition contains 5 to 15 parts by weight, preferably 8 to 10 parts by weight of ethanol.

[0034] Ethanol can dissolve various inorganic and organic substances (including oily dirt). Ethanol has good cleaning ability against carbon deposits, gum, dust, iron rust, and water stains. Ethanol can increase the contact area between the cleaning composition and the machine parts being cleaned, thereby improving the cleaning speed.

[0035] <Ingredient e)> The cleaning composition contains 1 to 15 parts by weight, preferably 4 to 6 parts by weight, of isopropanol.

[0036] Isopropanol has strong decomposition ability for lipophilic substances. It has good cleaning ability for carbon deposits, gum, dust, iron rust, and water stains. Isopropanol is also highly compatible with component d) ethanol.

[0037] <Component f)> The cleaning composition contains 1 to 10 parts by weight, preferably 4 to 6 parts by weight, of acetone.

[0038] Acetone has good decomposition ability for oily dirt. Acetone has good cleaning ability for carbon deposits, gum, dust, iron rust, and water stains.

[0039] <Ingredient g)> The detergent composition contains 0.01 to 0.2 parts by weight, preferably 0.1 to 0.2 parts by weight, of an isotridecanol polyoxyethylene ether having an HLB value of 12-13.

[0040] Isotridecanol polyoxyethylene ether is obtained by polymerization of isotridecanol and ethylene oxide. Isotridecanol polyoxyethylene ether is a nonionic surfactant with good emulsifying and cleaning properties.

[0041] Isotridecanol polyoxyethylene ethers are commercially available, for example, from Haian Petrochem, Jiangsu Province.

[0042] According to the present invention, the isotridecanol polyoxyethylene has an HLB value of 12 to 13, preferably 12. When the HLB value is within the above range, the isotridecanol polyoxyethylene has appropriate solubilizing and cleansing properties and uniform emulsifying properties.

[0043] Preferably, component g) is selected from the group consisting of isotridecanol polyoxyethylene ether 1307 having an HLB value of 12 and isotridecanol polyoxyethylene ether 1308 having an HLB value of 13, more preferably isotridecanol polyoxyethylene ether 1307 having an HLB value of 12.

[0044] <Gas propellant> The composition includes a gas propellant, which, in combination with an aerosol spray, makes the cleaning composition convenient for end users to use, ensures sufficient penetration of soiled materials and the desired cleaning efficiency, and prevents residual cleaning composition from accumulating on the walls or bottom of the container.

[0045] There are no particular limitations on the gas propellant, and any gas propellant generally known as a propellant for liquid detergent compositions can be used as long as it does not adversely affect the effects of the present invention.

[0046] In some examples, the gas propellant comprises a gas selected from the group consisting of carbon dioxide, propane, and butane.

[0047] In some examples, the gas propellant is h) 1 to 5 parts by weight of carbon dioxide, and i) 10 to 30 parts by weight of a mixture of propane and butane in a volume ratio of about 1 to 4:9 to 6, preferably about 3:7. By combining component h) with component i), the gas propellant ensures highly desirable atomization properties and internal pressure.

[0048] The mass ratio of the liquid detergent mixture to the gas propellant is not particularly limited as long as it ensures the desired atomization and internal pressure. In some examples, the mass ratio of the liquid detergent mixture to the gas propellant is about 60-90:40-10, for example, 70:30, 75:35, 80:20, 85:15, or 90:10, which ensures the highly desirable atomization and internal pressure.

[0049] The material of the aerosol spray can is not particularly limited as long as it is pressure-resistant and corrosion-resistant. In some examples, the aerosol spray can is made of electrolytic tin-plated iron.

[0050] <Method of manufacturing the cleaning composition> In another aspect, the present invention provides a method for producing a pharmaceutical composition comprising: mixing components a) to g) to obtain a liquid detergent mixture; packaging the liquid detergent mixture in an aerosol spray can and sealing said can; and Filling gas propellants into sealed cans The present invention provides a method for producing the cleaning composition of the present invention, comprising:

[0051] Optionally, the method further comprises filtering the liquid detergent mixture, for example through a filter screen, before packaging it into an aerosol spray can.

[0052] The method or order of mixing the components of the liquid cleaning agent mixture and / or the gas propellant is not particularly limited, and any commonly known mixing method can be used as long as it does not adversely affect the effects of the present invention.

[0053] <Use of cleaning composition> The detergent composition according to the invention can be used to clean parts of a vehicle or machine, the vehicle being preferably an automobile and the part being preferably a brake disc.

[0054] In some instances, the parts are made of rubber or plastic, such as polypropylene and / or polycarbonate. [Example]

[0055] <Material> 6# Solvent oil: Contains n-hexane, 2,4-dimethylpentane, 2,3-dimethylbutane, n-pentane, cyclopentane and cyclohexane as main components, and a mixture of small amounts of aromatic hydrocarbons, available from Maoming petrochemical company.

[0056] 120# Solvent Oil: Also known as industrial heptane, mainly composed of n-heptane, iso-heptane and cycloheptane, containing small amounts of impurities such as aromatic hydrocarbons, sulfur-containing compounds and nitrogen-containing compounds, available from Maoming petrochemical company.

[0057] D20: A mixture of 40 parts by weight of a C7 alkane and 60 parts by weight of a C8 alkane, with a distillation range of 120-160°C and a closed cup flash point of approximately 20°C, available from Mobil.

[0058] D30: A mixture of 45 parts by weight of a C8 alkane and 55 parts by weight of a C9 alkane, with a distillation range of 145-160°C and a closed cup flash point of approximately 30°C, available from Mobil.

[0059] D80: A mixture of C18 to C30 n-alkanes, with a distillation range of 208 to 237°C and a closed cup flash point of approximately 80°C. Available from Mobil.

[0060] Isoparaffin G: A mixture of C10 branched aliphatic alkanes and C11 branched aliphatic alkanes, with a distillation range of 161-173°C and a closed cup flash point of approximately 44°C. Available from ExxonMobil.

[0061] Isoparaffin C: A mixture of C7 and C8 branched alkanes, with a boiling point range of 99-104°C and a closed cup flash point below 0°C. Available from ExxonMobil.

[0062] Isoparaffin E: A mixture of C8 and C9 branched alkanes, with a boiling point range of 113-139°C and a closed cup flash point of approximately 7°C. Available from ExxonMobil.

[0063] Isoparaffin H: A mixture of C11 and C12 branched aliphatic alkanes, with a distillation range of 182-192°C and a closed cup flash point of 54°C or less. Available from ExxonMobil.

[0064] Isoparaffin L: A mixture of C11 branched aliphatic alkanes and C12 branched aliphatic alkanes. Distillation range: 207-253°C. Closed cup flash point: 64°C or less. Available from ExxonMobil.

[0065] E-1307: Isotridecanol polyoxyethylene with an HLB value of about 12, available from Haian Petrochem, Jiangsu Province Co., Ltd.

[0066] E-1308: Isotridecanol polyoxyethylene with an HLB value of about 13, available from Haian Petrochem, Jiangsu Province Co., Ltd.

[0067] E-1305: Isotridecanol polyoxyethylene with an HLB value of about 10.5, available from Haian Petrochem, Jiangsu Province Co., Ltd.

[0068] E-1306: Isotridecanol polyoxyethylene with an HLB value of about 11.2, available from Haian Petrochem, Jiangsu Province Co., Ltd.

[0069] E-1310: Isotridecanol polyoxyethylene with an HLB value of about 13.5, available from Haian Petrochem, Jiangsu Province Co., Ltd.

[0070] E-1312: Isotridecanol polyoxyethylene with an HLB value of about 14.5, available from Haian Petrochem, Jiangsu Province Co., Ltd.

[0071] E-1315: Isotridecanol polyoxyethylene with HLB value of 14.5-18, available from Haian Petrochem, Jiangsu Province Co., Ltd.

[0072] E-1320: Isotridecanol polyoxyethylene with an HLB value of 14.5-18, available from Haian Petrochem, Jiangsu Province Co., Ltd.

[0073] <Preparation of Cleaning Composition> The cleaning compositions of Examples (Ex.) and Comparative Examples (CEx.) were prepared according to the formulations shown in the following tables. The amount of each component shown in the following tables is expressed in parts by weight.

[0074] Each of components a) to g) was added to a reactor and stirred at a rotation speed of 800 r / min for 15 minutes to obtain a base stock. This base stock was filtered through a filter screen (300 mesh). The filtered base stock was filled into an aerosol spray can. The aerosol can was sealed. Carbon dioxide and propane / butane (volume ratio 3:7) were filled into the aerosol spray can sealed with an aerator. A press head was attached to the aerosol spray can to obtain the final cleaning agent composition.

[0075] <Evaluation of Prepared Cleaning Compositions> Each of the compositions thus obtained was evaluated for cleaning ability, drying speed, and odor as follows.

[0076] i) Preparation of oil stains In accordance with QB / T 2117-1995 General Water-based Metal Detergents, 8% sodium petroleum sulfonate, 3.5% lanolin magnesium soap, 2% lanolin, 30% industrial petrolatum, 34.5% 20# machine oil, 12% 30# machine oil, 2% calcium soap grease, and 8% alumina were weighed out (by weight), heated to 120°C, melted and mixed uniformly, and cooled to room temperature to prepare an oily soil.

[0077] ii) Preparation of test plates A steel plate (20 mm x 40 mm) was washed with absolute alcohol and weighed as "M0".

[0078] 1 g of the oily soil prepared in step i) was uniformly coated on one side of the steel plate. The steel plate coated with the oily soil was weighed as "M1".

[0079] iii) Cleaning The test plate was placed at a 60° inclination angle from the horizontal and secured with a clamp. The cleaning composition prepared above was sprayed horizontally onto the test plate several times to cover the surface of the oil stain. The horizontal spray distance between the sprayer and the test plate was 15 cm. After the washed oil stain had washed away, the cleaned test plate was dried. The weight of the test plate after cleaning and drying was recorded as "M2."

[0080] The drying time (minutes) was taken as the drying rate.

[0081] In step iii), the odor of the cleaning composition was evaluated by the operator's sense of smell and recorded at different levels: light, medium-light, medium, medium-strong, and strong.

[0082] Cleaning power represents the ratio of the mass of soil removed from a soiled surface by a detergent composition to the total mass of soil on the soiled surface (i.e., the surface to be cleaned).

[0083] The cleaning capacity can be calculated according to the following formula: X1 = [(M1-M2) / (M1-M0)] x 100% X1: cleaning capacity, %, M0: Mass of the steel plate, g M1: Mass of the contaminated steel plate before cleaning, g M2: Mass of the contaminated steel plate after cleaning and drying, g

[0084] [Table 1]

[0085] As can be seen from Table 1, when component a) was selected from the group consisting of 6# solvent oil, 120# solvent oil, isohexane, isoheptane, and n-heptane, strong detergency (90% or more), an adequate drying speed (3-3.5 minutes), and an acceptably light or moderately light odor were achieved. However, the 6# solvent oil used in Comparative Example 1 and the 120# solvent oil used in Comparative Example 2 contained aromatic hydrocarbons and were toxic. In contrast, the isohexane, isoheptane, and n-heptane used in Examples 3-5 did not contain aromatic hydrocarbons and were environmentally friendly. In particular, when component a) was isohexane, an optimal balance of high detergency of 99.2%, slight odor, adequate drying speed, extremely low toxicity, and low cost was achieved.

[0086] [Table 2]

[0087] As can be seen from Table 2, when component b) was D20 in Example 3, an optimal balance was achieved between a high cleaning performance of 99.2%, slight odor, adequate drying speed, and very low toxicity. In contrast, when component b) was D30 in Comparative Example 6 or D80 in Comparative Example 7, the cleaning performance was reduced and the drying speed was too slow.

[0088] [Table 3]

[0089] As can be seen from Table 3, when component c) in Example 3 was isoparaffin G, an optimal balance was achieved between a high cleaning performance of 99.2%, slight odor, adequate drying speed, and very low toxicity. In contrast, when component c) was isoparaffin C in Comparative Example 8, isoparaffin E in Comparative Example 9, isoparaffin H in Comparative Example 10, or isoparaffin L in Comparative Example 11, the cleaning performance was reduced and the drying speed was either too slow or too fast.

[0090] [Table 4]

[0091] As can be seen from Tables 1 and 4, when the amount of component a) was appropriate within the range of 25 to 35 parts by weight in Examples 3, 12, and 13, the cleaning ability was higher than 95%, the drying speed was appropriate, and there was little odor.

[0092] When the amount of component b) was too low (15 parts by weight) in Comparative Example 14, the cleaning performance was undesirably low. When the amount of component b) was 18-30 parts by weight in Examples 3 and 15, the cleaning performance was greater than 95%, the drying speed was adequate, and the odor was slight.

[0093] In Examples 3, 16 and 17, when the amount of component c) was 5 to 15 parts by weight, the cleaning ability was higher than 90%, the drying speed was appropriate and the odor was slight.

[0094] [Table 5]

[0095] As can be seen from Tables 5 and 1, when the amount of components d) and e) was 0 in Comparative Example 18, the cleaning ability decreased dramatically and the drying rate was too fast. When the amount of components d) and e) was too high in Comparative Example 19, the cleaning ability decreased dramatically and the drying rate was too slow.

[0096] TIFF0007801368000006.tif144164

[0097] As can be seen from Tables 6 and 1, when the HLB value of g) was 12 (Example 3, E-1307) to 13 (Example 22, E-1308), an optimal balance was achieved among 95% or greater cleaning performance, low odor, fast drying speed, and low toxicity. When the HLB value of g) was lower than 12 (Comparative Examples 20 and 21, E-1305 and E-1306) or higher than 13 (Comparative Examples 23-26, E-1310, E-1312, E-1315, E-1320), cleaning performance undesirably decreased. The initial disclosure of this specification encompasses at least the following aspects. [1] A cleaning composition contained in an aerosol spray can, a) 25 to 35 parts by weight of a solvent selected from the group consisting of isohexane, isoheptane and n-heptane, b) 18 to 30 parts by weight of a dearomatized hydrocarbon solvent having 7 to 8 carbon atoms in the molecule, a distillation range of 120 to 160°C, and a closed cup flash point of about 20°C; c) 5 to 15 parts by weight of a branched aliphatic alkane having 10 to 11 carbon atoms, a distillation range of 161 to 173°C and a closed cup flash point of about 44°C; d) 5 to 15 parts by weight of ethanol; e) 1 to 15 parts by weight of isopropanol; f) 1 to 10 parts by weight of acetone, and g) 0.01 to 0.2 parts by weight of isotridecanol polyoxyethylene ether having an HLB value of 12 to 13; a liquid detergent mixture comprising: - gas propellants, A cleaning composition comprising: [2] The cleaning composition according to [1] above, wherein the isotridecanol polyoxyethylene ether has an HLB value of 12. [3]-a) 28 to 32 parts by weight of isohexane; b) 18 to 22 parts by weight of a dearomatized hydrocarbon solvent having 7 to 8 carbon atoms in the molecule, a distillation range of 120 to 160°C, and a closed cup flash point of about 20°C; c) 5 to 10 parts by weight of a branched aliphatic alkane having 10 to 11 carbon atoms, a distillation range of 161 to 173°C and a closed cup flash point of about 44°C; d) 8 to 10 parts by weight of ethanol; e) 4 to 6 parts by weight of isopropanol; f) 4 to 6 parts by weight of acetone, and g) 0.1 to 0.2 parts by weight of isotridecanol polyoxyethylene ether having an HLB value of 12 to 13, preferably an HLB value of 12; a liquid detergent mixture comprising: - Gas propellant The cleaning composition according to [1] or [2] above, comprising: [4] The cleaning composition according to any one of the above [1] to [3], wherein the gas propellant comprises a gas selected from the group consisting of carbon dioxide, propane, and butane. [5] The gas propellant is h) 1 to 5 parts by weight of carbon dioxide, and i) 10 to 30 parts by weight of a mixture of propane and butane in a volume ratio of about 1-4:9-6, preferably about 3:7; The cleaning composition according to [4] above, comprising: [6] A method for producing the cleaning composition according to any one of [1] to [5], mixing components a) to g) to obtain a liquid detergent mixture; packaging the liquid detergent mixture in an aerosol spray can and sealing said can; and Filling gas propellants into sealed cans A method comprising: [7] The method according to [6], further comprising filtering the liquid detergent mixture before packaging it in an aerosol spray can. [8] Use of the detergent composition according to any one of the above [1] to [5] in cleaning a vehicle or machine part, wherein the vehicle is preferably an automobile and the part is preferably a brake disc. [9] The use according to [8] above, wherein the part is made of rubber or plastic, such as polypropylene and / or polycarbonate.

Claims

1. A cleaning composition contained in an aerosol spray can, comprising, relative to 100 parts by weight of the cleaning composition: a) 25 to 35 parts by weight of a solvent selected from the group consisting of isohexane, isoheptane and n-heptane; b) 18 to 30 parts by weight of a dearomatized hydrocarbon solvent having 7 to 8 carbon atoms in the molecule, a distillation range of 120 to 160°C and a closed cup flash point of 20°C; c) 5 to 15 parts by weight of a branched aliphatic alkane having 10 to 11 carbon atoms, a distillation range of 161 to 173°C and a closed cup flash point of 44°C; d) 5 to 15 parts by weight of ethanol; e) 1 to 15 parts by weight of isopropanol; f) 1 to 10 parts by weight of acetone, and g) 0.01 to 0.2 parts by weight of an isotridecanol polyoxyethylene ether having an HLB value of 12 to 13; a liquid detergent mixture comprising: - gas propellants, A cleaning composition comprising:

2. 2. The cleaning composition according to claim 1, wherein the isotridecanol polyoxyethylene ether has an HLB value of 12.

3. For 100 parts by weight of the cleaning composition, a) 28 to 32 parts by weight of isohexane, b) 18 to 22 parts by weight of a dearomatized hydrocarbon solvent having 7 to 8 carbon atoms in the molecule, a distillation range of 120 to 160°C and a closed cup flash point of 20°C; c) 5 to 10 parts by weight of a branched aliphatic alkane having 10 to 11 carbon atoms, a distillation range of 161 to 173°C and a closed cup flash point of 44°C; d) 8 to 10 parts by weight of ethanol; e) 4 to 6 parts by weight of isopropanol; f) 4 to 6 parts by weight of acetone, and g) 0.1 to 0.2 parts by weight of an isotridecanol polyoxyethylene ether having an HLB value of 12 to 13; a liquid detergent mixture comprising: - Gas propellant The cleaning composition according to claim 1 or 2, comprising:

4. 4. The cleaning composition according to claim 1, wherein the gas propellant comprises a gas selected from the group consisting of carbon dioxide, propane, and butane.

5. The gas propellant is, relative to 100 parts by weight of the cleaning composition, h) 1 to 5 parts by weight of carbon dioxide, and i) 10 to 30 parts by weight of a mixture of propane and butane in a volume ratio of 1-4:9-6; The cleaning composition of claim 4, comprising:

6. A method for producing the cleaning composition according to any one of claims 1 to 5, comprising: mixing components a) to g) to obtain a liquid detergent mixture; packaging the liquid detergent mixture in an aerosol spray can and sealing said can; and Filling gas propellants into sealed cans A method comprising:

7. 7. The method of claim 6, further comprising filtering the liquid detergent mixture before packaging it in an aerosol spray can.

8. Use of the detergent composition according to any one of claims 1 to 5 in cleaning vehicle or machine parts, wherein the vehicle is an automobile and the part is a brake disc.

9. 9. The use according to claim 8, wherein the part is made of rubber or plastic.

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