EP0719323A1 - Composition de nettoyage - Google Patents

Composition de nettoyage

Info

Publication number
EP0719323A1
EP0719323A1 EP94927331A EP94927331A EP0719323A1 EP 0719323 A1 EP0719323 A1 EP 0719323A1 EP 94927331 A EP94927331 A EP 94927331A EP 94927331 A EP94927331 A EP 94927331A EP 0719323 A1 EP0719323 A1 EP 0719323A1
Authority
EP
European Patent Office
Prior art keywords
ether
cleaning composition
glycol
percent
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94927331A
Other languages
German (de)
English (en)
Other versions
EP0719323B1 (fr
Inventor
Marius A M Kuemin
Michael Schneider
Farooq Alam
Nelly Rence Charles
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of EP0719323A1 publication Critical patent/EP0719323A1/fr
Application granted granted Critical
Publication of EP0719323B1 publication Critical patent/EP0719323B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/263—Ethers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/266—Esters or carbonates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3227—Ethers thereof
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5022—Organic solvents containing oxygen

Definitions

  • the present invention relates to a cleaning composition and to the use of the cleaning composition for cleaning surfaces.
  • Cleaning compositions are widely used in the industry. Hard surfaces, such as glass, metallic or polymeric surfaces are often cleaned, either during finishing or prior to further processing, in order to remove traces of impurities like grease or salts.
  • the cleaning composition is applied on the surface to be cleaned and distributed with the aid of an absorbent object, such as a sponge, cloth or paper.
  • the cleaning composition should have a good wetting ability, a high cleaning efficiency and a fast and residue-free evaporation behavior. For example, it should not be necessary to rinse the surfaces with water or an organic solvent after cleaning.
  • WO 93/06204 discloses a cleaning composition which comprises (1 ) 30 to 70 volume percent of a glycol ether, dipropylene glycol n-butyl ether, tripropylene glycol n-butyl ether, propylene glycol phenyl ether or mixtures thereof, (2) 30 to 70 volume percent of one or more C 12 _ ⁇ g aliphatic hydrocarbons and (3) 0 to 10 volume percent of at least one surfactant.
  • Metal parts are cleaned by subjecting the parts to a solvent wash with the described cleaning composition, blowing the washed parts with air, rinsing them with water and drying them.
  • the published German Offenlegungsschrift 37.17.600 relates to water-based hand cleansing compositions containing 4 to 20 weight percent of a water-soluble surfactant, 5 to 15 weight percent of a water-insoluble emulsifier, 10 to 20 weight percent of a hydrophilic organic solvent, 0 to 15 weight percent of a lipophilic oxygen-free organic solvent and 30 to 75 weight percent water.
  • the hand cleansing compositions are said to be useful for removing paint, oil, grease, and tar from hands. Although these compositions may be useful for cleaning hands, they are less useful for cleaning glass, metallic or polymeric surfaces. Due to their high amount of high molecular emulsifiers and surfactants, such cleaning compositions leave an unacceptable level of residues upon drying or need a water rinse.
  • U.S. Patent 4,592,787 relates to a composition suitable for stripping cross-linked polymer which comprises a) 40 to 75 weight percent of a lower alkyl monoether of a propylene glycol or a mixture of lower alkyl monoethers of propylene glycol; b) 10 to 30 weight percent of a C 2 .6-al anol; c) 4 to 28 weight percent of an alkanolamine and d) 1 to 14 weight percent of a base. 15 to 99 parts by weight of this composition may be diluted with 1 to 85 parts by weight of water.
  • the function of the lower alkyl monoether of propylene glycol is to dissolve the adhesive and lift the photoresist polymer from the substrate.
  • Many lower alkyl monoethers of propylene glycol are listed, with propylene glycol isopropyl ether and propylene glycol methyl ether said to be preferred.
  • the published European patent application 0,407,952 relates to water-based compositions for stripping coatings and adhesives. They consist of from 40 to 80 weight percent of an aqueous surfactant solution containing one or more thickeners and 20 to 60 weight percent of a solvent mixture.
  • the solvent mixture contains water-soluble and water- -insoluble components.
  • Exemplary of (partially) water-soluble components are ethylene carbonate, ethyl lactate, N-methyl-pyrrolidone or alkylene glycol alkyl ethers, such as mono- or dipropylene glycol monoalkyl ethers or diethylene glycol monoalkyl ethers.
  • Exemplary of partially water-soluble or water-insoluble components are esters, ketones, terpenes, aromatic or aliphatic compounds, such as mono- or diacetates of ethylene glycol or propylene glycol.
  • the viscosity of the stripping compositions is between 1000 and 4000 mPa-s. According to the examples these compositions contain a large number of various ingredients. However, the water-based compositions do not readily evaporate and have to be washed off after their use. Many cleaning compositions have been suggested in the prior art which all require the presence of a non-volatile surfactant.
  • the published European Patent Application 0 066342 discloses a general-purpose cleaning composition which is intended for use in cleaning hard surfaces, such as tiles, walls, floors, kitchen furniture, glass, and plastic-covered doors.
  • the cleaning composition comprises 0.01 to 98 percent, most preferably 7 to 25 percent, by weight of a non-ionic surfactant, 0.005 to 20 percent, most preferably 0.5 to 10 percent, by weight of an at least partially esterified resin and 1 to 99.985 percent, most preferably 55-92.5, of a compatible liquid medium.
  • the cleaning composition is said to have improved non-streak and cleaning properties.
  • Preferred non-ionic surfactants consist of a hydrophobic moiety, such as a Cs-C 2 o primary or secondary, branched- or straight-chain monoalcohol, a C ⁇ -Ci ⁇ mono- or dialkyl phenol, a Cs- o fatty acid amide, and a hydrophilic moiety which consists of alkylene oxide units.
  • the molecular weight of the esterified resin may vary from about a thousand to a few million.
  • the compatible liquid medium may consist of water, or mixtures of water and one or more water-miscible organic solvents.
  • Typical examples of such solvents are the lower aliphatic water-miscible alcohols, such as ethanol, propanol, isopropanol and butanol and glycols, such as ethylene- or propyleneglycol and glycolethers, such as the mono- and dimethyl, -propyl, -isopropyl, -butyl, isobutylethers of ethylene glycol, di- and triethylene glycol or analogous propylene glycol ethers.
  • the lower aliphatic water-miscible alcohols such as ethanol, propanol, isopropanol and butanol and glycols, such as ethylene- or propyleneglycol and glycolethers, such as the mono- and dimethyl, -propyl, -isopropyl, -butyl, isobutylethers of ethylene glycol, di- and triethylene glycol or analogous propylene glycol ethers.
  • GB-A-2,166,153 discloses a hard surface cleaning composition which essentially consists of 1 to 10 percent of a lower aliphatic monohydric alcohol having from 2 to 4 carbon atoms, 1 to 10 percent of propylene glycol monobutyl ether, 0.08 to 2.5 percent of a nonfluorinated anionic, non-ionic, amphoteric, ampholytic or zwitterionic surfactant, 0.003 to 2 percent of an anionic, non-ionic or cationic fluorinated hydrocarbon surfactant, 0.05 to 2 percent of a fungitive alkaline material, and the balance being water. All percentages are by weight.
  • U.S. Patent No. 5,108,660 discloses an aqueous hard surface detergent composition which comprises a hydrocarbyl-amidoalkylenesulfobetaine detergent surfactant, a cleaning solvent, a buffering system, water and optionally a nonaqueous polar solvent.
  • Useful cleaning solvents are aromatic solvents, glycol ethers, such as mono- and dipropylene glycol monobutyl ether, monopropylene glycol monopropyl ether, mono- and diethylene glycol monohexyl ether and monoethylene glycol monobutyl ether and mixtures thereof.
  • Particularly preferred cleaning solvents are diols having from 6 to 16 carbon atoms.
  • U.S. Patent No. 3,882,038 discloses a cleaner formulation which comprises 0.01 to
  • the surfactant preferably is a polyethoxylated linear long chain alcohol surfactant.
  • U.S. patent No. 3,939,090 discloses an antifogging window cleaner which comprises 0.01 to 0.1 weight percent of a carboxyl-containing copolymer, up to 10 weight percent of at least one lower alkylene glycol alkyl monoether, such as ethylene glycol monobutyl or monomethyl ether, propylene glycol monomethyl or monobutyl ether, up to 25 weight percent of an aliphatic alcohol, 0.1 to 2 weight percent of an ethoxylated 1 0-18 alka ⁇ metal sulfate and the balance water.
  • the carboxyl-containing copolymer is a film former which hardens the window cleaner residue left on the glass at the time of application.
  • WO 91/15565 discloses an aqueous degreaser composition which comprises a sparingly soluble organic solvent, a solubilizing coupler and water.
  • Preferred sparingly soluble organic solvents are 2-phenoxyethanol, 1-phenoxy-2-propanol, dipropylene glycol mono-butyl ether, n-butoxyethyl acetate and the dimethyl esters of mixed succinic, glutaric and adipic acids.
  • Various sodium sulfonates, sulfates and phosphates are suggested as solubilizing couplers.
  • EP-A-0, 347,1 10 discloses a concentrated liquid all purpose cleaning composition free of builder salts which comprises 16 to 30 weight percent of a water soluble detergent system, 5 to 15 weight percent of a water soluble organic solvent and 2 to 5.5 weight percent of a fragrance which has a pH of 6 to 7.
  • the detergent system is a mixture of anionic and non- ionic surfactants.
  • the anionic surfactant is a water-soluble salt, such as sodium paraffin sulfonate.
  • the non-ionic surfactant is a condensation product of ethylene oxide and/or propylene oxide groups with an organic hydrophobic compound having terminal hydroxy groups.
  • the organic solvent is a C ⁇ . ⁇ -alkyl ether of ethylene or diethylene glycol or of mono-, di- or tripropylene glycol, such as dipropylene glycol n-butyl ether, diethylene glycol monobutyl ether or dipropylene glycol methyl ether.
  • U.S. Patent No. 4,863,629 discloses a cleaning composition which comprises from 1 to 20 weight percent of an anionic, non-ionic or amphoteric surfactant, 1 to 20 weight percent of propylene glycol mono-tert-butyl ether, optionally mixed with a C 2 . 3 alcohol or a C 4 _8 glycol ether, optional compounds like a solubilizer, a viscosity regulator, a complexing agent, further additives like perfume oils and water.
  • Useful non-ionic surfactants are for example ethoxylated long-chain alcohols.
  • all these above-described cleaning compositions comprise a substantial amount of surfactants or other non-volatile components which may leave an unacceptable level of residues upon drying.
  • U.S. Patent No. 4,077,896 discloses a wax-stripping cleaning composition which contains 1 to 25 part by weight of a water-soluble monobutyl glycol ether, 2 to 20 parts by weight of a water-soluble primary amine and the remainder of 100 parts being water.
  • the monobutyl glycol ether is preferably 2-butoxyethanol, diethylene glycol monobutyl ether or butoxyethoxy propanol.
  • the U.S. patent recommends the use of a surfactant, a thickening agent and a compatible water-soluble film-forming resin to inhibit the rapid evaporation of the water-soluble organic solvent and the primary amine. However, these recommended additives may leave unacceptable residues on the cleaned surface upon drying.
  • WO 93/25654 which has been published on December 23, 1993, discloses a homogeneous, aqueous cleaning composition which forms a solvent-water emulsion on evaporation of at least a portion of the solvent.
  • the composition comprises a first solvent component in an amount that is present at a level above the miscibility limit of that component with water and a second solvent which is sufficiently volatile such that during use of the composition the second solvent component evaporates from the composition such that an inhomogeneous mixture comprising the first solvent component and water is formed.
  • the first solvent component preferably is mono- or dipropylene glycol n-butyl ether, mono- or dipropylene glycol mono-t-butyl ether, diethylene glycol hexyl ether, ethyl acetate or a mixture thereof.
  • the second solvent component preferably is selected from volatile alcohols, water-miscible, volatile glycol ethers, aldehydes, ketones, dialkyl ethers or a mixture thereof. More preferably, the second solvent component is methanol, ethanol, isopropyl alcohol, ethylene glycol monobutyl ether and mixtures thereof.
  • FR-A-2,629,095 discloses a volatile aqueous cleaning composition for hard surfaces which does not comprise a surfactant. It comprises at least a volatile solvent and a volatile acid.
  • Useful volatile solvents are C ⁇ _ 4 alcohols, C 2 _8 glycol ethers and mixtures thereof, such as methanol, ethanol, isopropanol, butanol, ethylene glycol butyl ether, mono- and dipropylene glycol ethers and mixtures thereof.
  • Useful volatile acids are mineralic acid, such as hydrochloric acid.
  • the published French Patent Application 2,571 ,279 relates to a cleaning agent for agricultural spraying apparatus, particularly to rinsing agents for spraying and atomizing assemblies.
  • the cleaning agent comprises a propylene glycol ether or a mixture of such ethers.
  • a propylene glycol ether or a mixture of such ethers.
  • Disclosed examples are the methyl, ethyl, isopropyl, isobutyl and phenyl ether of propylene glycol, the methyl ether of di- and tripropylene glycol and propylene glycol methyl ether acetate.
  • the methyl ethers of propylene and dipropylene glycol and propylene glycol methyl ether acetate are said to be preferred.
  • the ethers are preferably applied as 1 to 5 weight percent aqueous solutions.
  • One aspect of the present invention is a cleaning composition which comprises (1) mono-, di- or tripropylene glycol n-butyl ether, (2) a solubilizer of C ⁇ .3-monoalkyl ethers of mono-, di- and tripropylene glycol, methyl ether acetates of mono-, di- and tripropylene glycol or dimethyl ethers of mono-, di- and tripropylene glycol and (3) from 35 to 95 percent water, based on the weight of the cleaning composition.
  • the cleaning composition is essentially free of non-volatile additives.
  • Another aspect of the present invention is the use of the cleaning composition of the present invention for cleaning surfaces.
  • Yet another aspect of the present invention is a method of cleaning surfaces wherein an effective amount of the cleaning composition of the present invention is applied to the surface.
  • the cleaning composition of the present invention comprises mono-, di- or tripropylene glycol n-butyl ether.
  • glycol n-butyl ether means the monoether.
  • the monopropylene glycol n-butyl ether simply called “propylene glycol n-butyl ether” is preferred. It has been found that at least the preferred embodiments of the cleaning composition of the present invention have a substantially better cleaning efficiency than corresponding cleaning compositions which contain another monoether of mono-, di- or tripropylene glycol instead of the n-butyl ether.
  • the mono-, di- or tripropylene glycol n-butyl ether is substantially more effective for lowering the surface tension of water than most of the other propylene glycol monoethers. Lowering the surface tension of water is important for achieving good cleaning and evaporation results. When the surface tension of water is sufficiently lowered, a film is formed on the articles which quickly evaporates. When the surface tension of water is not lowered to a sufficient degree, droplets of water are formed which results in a slow evaporation.
  • the cleaning composition preferably comprises from 1 to 40 percent, more preferably from 2 to 20 percent, most preferably from 2 to 8 percent of the mono-, di- or tripropylene glycol n-butyl ether, based on the total weight of the cleaning composition. If the cleaning composition contains two or more of such n-butyl ethers, their total amount preferably is within the indicated ranges.
  • the maximum amount of the n-butyl ether that is soluble in the cleaning composition depends on the amount of water and on the type and amount of the solubilizer. The amount of the n-butyl ether should generally be chosen such that the cleaning formulation has a single phase. The maximum amount of the n-butyl ether that is soluble in the cleaning composition can be evaluated by series trials.
  • a cleaning composition comprising 60 percent water, propylene glycol n-butyl ether and, as a solubilizer, propylene glycol methyl ether forms a single phase when the amount of propylene glycol n-butyl ether is up to 18 percent and the amount of propylene glycol methyl ether is at least 22 percent, based on the weight of the cleaning composition.
  • the cleaning composition contains 75 percent water, it forms a single phase when the amount of propylene glycol n-butyl ether is up to 7 percent and the amount of propylene glycol methyl ether is at least 16 percent, based on the weight of the cleaning composition.
  • the cleaning composition When the cleaning composition contains 90 percent water, it forms a single phase when the amount of propylene glycol n-butyl ether is up to 5 percent and the amount of propylene glycol methyl ether is at least 5 percent, based on the weight of the cleaning composition.
  • the cleaning composition contains from 35 to 95 percent, preferably from 60 to 90 percent, more preferably from 70 to 80 percent of water, based on the total weight of the cleaning composition. Further, the cleaning composition preferably contains from 4 to 60 percent, more preferably from 8 to 37 percent, most preferably from 12 to 28 percent of one or more solubilizers, based on the total weight of the cleaning composition.
  • the solubilizer sometimes called “coupler” by the skilled artisans, serves for increasing the solubility of the mono-, di- or tripropylene glycol n-butyl ether in water.
  • the solubilizer selected for the present invention also lowers the surface tension of water.
  • a useful solubilizer generally has a hydrophile/lipophile balance HLB of at least 7, preferably from 7.5 to 9.5.
  • the solubilizer preferably forms an azeotrope with water and/or with the mono-, di- or tripropylene glycol n-butyl ether. By forming an azeotrope with water, the evaporation rate of water can be increased.
  • the solubilizer is
  • C ⁇ _3 monoalkyl ethers of mono-, di- and tripropylene glycol such as the methyl, ethyl, n-propyl and i-propyl ethers of mono-, di- and tripropylene glycol, the dimethyl ethers of mono-, di- and tripropylene glycol or the methyl ether acetates of mono-, di- and tripropylene glycol.
  • the propylene glycol dimethyl ether is preferred over the dipropylene glycol dimethyl ether which is preferred overthe tripropylene glycol dimethyl ether.
  • the most preferred acetate is propylene glycol methyl ether acetate.
  • solubilizers are the methyl ethers of mono-, di- or tripropylene glycol, whereby the propylene glycol methyl ether is preferred over the dipropylene glycol methyl ether which is preferred over the tripropylene glycol methyl ether. It has been found that these solubilizers increase the temperature stability of the cleaning composition of the present invention.
  • propylene glycol ethers would be less useful as solubilizers.
  • mono-, di- and tripropylene glycol methyl n-butyl ethers are not useful because they are not sufficiently soluble in the cleaning composition of the present invention and their HLB is too low.
  • propylene glycol n-butyl ether acetate is not useful because they are not sufficiently soluble in the cleaning composition of the present invention and their HLB is too low.
  • propylene glycol n-butyl ether acetate for example, to propylene glycol n-butyl ether acetate.
  • the cleaning composition of the present invention may additionally comprise a monofunctional alcohol as a solubilizer.
  • Useful alcohols are mono- or multifunctional, saturated or unsaturated open-chain or cyclic alcohols, such as methanol, ethanol, the propanols, such as n-propanol or isopropanol, the butanols, such as n-butanol or isobutanol, ally! alcohol, furfuryl alcohol, crotyl alcohol or tetrahydrofurfuryl alcohol.
  • the alcohol preferably has 1 to 8 carbon atoms. Isobutanol and the furfuryl alcohol are preferred.
  • the cleaning composition of the present invention may contain one or more types of solubilizers.
  • the total amount of solubilizers is within the above-mentioned ranges of from 4 to 60 percent, more preferably from 8 to 37 percent, most preferably from 12 to 28 percent, based on the total weight of the cleaning composition.
  • this amount preferably from 0 to 10 percent, more preferably from 0 to 5 percent, most preferably from 0.5 to 3 percent of the cleaning composition is comprised of one of the above-mentioned monofunctional alcohols, most preferably isobutanol or furfuryl alcohol.
  • the residual amount of solubilizers preferably consists of one or more glycol monoethers, most preferably of the methyl ethers of mono-, di- ortri propylene glycol.
  • the cleaning composition of the present invention optionally contains a corrosion inhibitor, preferably in an amount of from 10 to 500 ppm, preferably from 20 to 200 ppm, based on the total weight of the cleaning composition.
  • Corrosion inhibitors for aqueous systems are well known in the art, for example nitrites, phosphates, borates, silicaborates or silicates.
  • the cleaning composition of the present invention preferably comprises one or more organic basic buffers instead of a salt.
  • Preferred organic basic buffers are amines, for example ammonia, ethylene diamine, hexamethylene tetraamine, benzotriazole, or mono-, di- or trialkanol amines, preferably mono- or triethanol amine or propanol amine.
  • Monoethanol amine is the most preferred corrosion inhibitor.
  • the cleaning composition of the present invention may contain known optional additives, such as thickening agents, preservatives, bactericides, coloring agents, perfumes, surfactants or wetti ng agents, however, the cleaning composition of the present invention preferably is substantially free of non-volatile additives like high molecular additives or electrolytes.
  • non-volatile additives compounds are meant which do not evaporate to a noticeable degree at room temperature.
  • substantially free is meant that the amount of non-volatile additives is preferably lessthan ⁇ O ppm, more preferably less than 50 ppm, most preferably less than 30 ppm, based on the total weight of the cleaning composition.
  • the mono-, di- ortripropylene glycol n-butyl ether, the solubilizer and water together amount to 90 percent or more, more preferably to 95 percent or more, most preferably to 99 percent or more, particularly to 99.5 percent or more of the total weight of the cleaning composition.
  • the cleaning composition consists essentially of the mono-, di- ortripropylene glycol n-butyl ether, the solubilizer and water.
  • a preferred cleaning composition of the present invention comprises propylene glycol n-butyl ether, propylene glycol methyl ether, isobutanol, water and a corrosion inhibitor, preferably ethanol amine.
  • the most preferred cleaning composition comprises from 5 to 8 percent of propylene glycol n-butyl ether, from 15 to 20 percent of propylene glycol methyl ether, from 0.5 to 2 percent of isobutanol, from 70 to 80 percent of water and from 50 to 150 ppm of a corrosion inhibitor, based on the total weight of the cleaning agent.
  • the cleaning composition of the present invention is usually prepared by mixing the various ingredients. Typically the ingredients are mixed at room temperature.
  • the cleaning composition of the present invention is very useful for removing polar and non-polar impurities, such as grease, oils or salts from hard surfaces of articles, such as glass, metallic or polymeric surfaces.
  • the cleaning composition is particularly useful for removing impurities from metallic surfaces prior to processes which require clean and dry surfaces, such as gluing or painting.
  • the cleaning composition can be applied to the surface to be cleaned in any known manner.
  • the cleaning composition may be applied to and/or distributed on the surface to be cleaned with a spraying device or an absorbent object, such as a sponge, cloth, paper, or piece of leather.
  • the cleaning compositions of the present invention generally have a flash point of more than 40°C, typically of more than 50°C at atmospheric pressure. Cleaning compositions which have a flash point of at least 55°C are preferred.
  • the present invention is further illustrated by the following examples which should not be construed to limit the scope of the present invention. Unless otherwise mentioned, all parts and percentages are by weight.
  • the cleaning efficiency according to the IPP test, the surface tension and the evaporation rate of the various cleaning compositions are measured as follows.
  • the IPP test is published in "Seifen, Oele, Fette, Wachse, Heft 10/1986, pages 371-372, Qualitatsnormen fur Fussbodenwit- und holesstoff" .
  • a white carrier is treated with defined impurities.
  • the contaminated carrier is wiped with a sponge which has been soaked with the cleaning composition under well defined conditions.
  • the surface tension of the cleaning compositions is measured at 20°C according to DIN 53914. Low surface tensions are preferred. 5 To measure the evaporation rate in minutes as listed in Tables 1 and 3, a cold rolled steel plate of the size of 12 x 20 m is marked with a gradiation line. A solvent composition is poured on the plate in a horizontal position. The plate is then suspended from a corner and the solvent is allowed to clear from the plate by dual action of drying and solvent draining. 0 Examples 1 to 3 and Comparative Examples A to Q
  • various cleaning compositions are prepared consisting of 5 percent of a glycol ether listed in Table I below, 20 percent of propylene glycol methyl ether and 75 percent of water.
  • the cleaning efficiency according to the IPP test and the surface tension of the cleaning compositions of Series A is listed in Table I below.
  • various mixtures are prepared consisting of 5 percent of a glycol ether listed in Table 1 below and 95 percent water.
  • the mixtures of Series II are prepared for further evaluating the cleaning efficiency of various glycol ethers and their capability of lowering the surface tension of water.
  • the cleaning efficiency of the mixtures of Series II according to the IPP test and their surface tension is also listed in Table I below. 0
  • the surface tension of various undiluted glycol ethers, their HLB and their ability to form an azeotrope with water are listed in Table I as well.
  • Table II illustrates that not only good results are achieved in the IPP test when the cleaning composition contains propylene glycol methyl ether as a solubilizer but also when it contains other solubilizers within the scope of the present invention.
  • Table III below lists the compositions of various cleaning compositions of the present invention, their cleaning efficiency in the IPP test, their flash points, evaporation in minutes and their surface tension.
  • the flash points are measured on a Pensky-Martens closed-cup PMCC apparatus according to DIN 51758.
  • PnB propylene glycol n-butyl ether
  • PnB propylene glycol n-butyi ether
  • PnB propylene glycol n-butyl ether
  • PnB propylene glycol n-butyl ether
  • Table III illustrates the good results of the compositions of the present invention in the IPP test (in the range of 58 and 93) whereas the composition of Comparative Example R only reaches 44 in the IPP test. Further, Table 111 illustrates that most of the cleaning compositions of the present invention have a relatively high flash point (55°C or more) and, accordingly, are not a high fire hazard.
  • Table IV illustrates the evaporation rates of undiluted water, the cleaning composition of Example 36 (75 percent water, 17.5 percent propylene glycol methyl ether, 6.5 percent propylene glycol n-butyl ether and 1 percent isobutanol), undiluted propylene glycol n-butyl ether, a mixture of 5 percent propylene glycol n-butyl ether and 95 percent water, a mixture of 25 percent propylene glycol n-butyl ether and 75 percent water, undiluted propylene glycol methyl ether, a mixture of 5 percent propylene glycol n-butyl ether and 95 percent water and a mixture of 25 percent propylene glycol n-butyl ether and 75 percent water.
  • Table IV The evaporation rates listed in Table IV are measured by a method similarto ASTM 3539. Table IV lists the amount of liquid that is left (that is, that has not evaporated) versus the time period during which the liquid is allowed to stand at 25°C.
  • PnB propylene glycol n-butyl ether
  • PnB propylene glycol n-butyl ether
  • Example 36 contains 17.5 percent of propylene glycol methyl ether and 6.5 percent of propylene glycol n-butyl ether, i.e. totally about 25 percent glycol monoether.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
EP94927331A 1993-09-15 1994-09-02 Composition de nettoyage Expired - Lifetime EP0719323B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB939319125A GB9319125D0 (en) 1993-09-15 1993-09-15 Cleaning composition
GB9319125 1993-09-15
PCT/US1994/009954 WO1995007974A1 (fr) 1993-09-15 1994-09-02 Composition de nettoyage

Publications (2)

Publication Number Publication Date
EP0719323A1 true EP0719323A1 (fr) 1996-07-03
EP0719323B1 EP0719323B1 (fr) 1997-09-10

Family

ID=10742054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94927331A Expired - Lifetime EP0719323B1 (fr) 1993-09-15 1994-09-02 Composition de nettoyage

Country Status (9)

Country Link
EP (1) EP0719323B1 (fr)
JP (1) JPH09502759A (fr)
AT (1) ATE158019T1 (fr)
AU (1) AU7681294A (fr)
DE (1) DE69405574T2 (fr)
DK (1) DK0719323T3 (fr)
ES (1) ES2107249T3 (fr)
GB (1) GB9319125D0 (fr)
WO (1) WO1995007974A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0840778B1 (fr) * 1995-07-18 2002-11-27 JohnsonDiversey, Inc. Produit de nettoyage degraissant aqueux concentre
DE19700168B4 (de) * 1997-01-08 2010-05-06 Scheidel Gmbh & Co. Kg Mit Wasser wie mit Benzin unbeschränkt mischbares glykolhaltiges Reinigungsfluid
US5854145A (en) * 1997-05-14 1998-12-29 Cortec Corporation Corrosion inhibitor solution applicator
CN1138849C (zh) * 1999-02-02 2004-02-18 李金岩 醚酯型干洗溶剂组成物
US20030022800A1 (en) 2001-06-14 2003-01-30 Peters Darryl W. Aqueous buffered fluoride-containing etch residue removers and cleaners
WO2010064558A1 (fr) * 2008-12-01 2010-06-10 株式会社トクヤマ Composition de séparation d'adhésifs de cyanoacrylate et procédé de retrait de ces adhésifs
US11851637B2 (en) * 2013-08-23 2023-12-26 Ecolab Usa Inc. Adhesive remover compositions and methods of use
EP4098729A1 (fr) * 2021-06-01 2022-12-07 Cipelia Composition de nettoyage ininflammable, volatile et aqueuse

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882038A (en) * 1968-06-07 1975-05-06 Union Carbide Corp Cleaner compositions
US4077896A (en) * 1975-01-15 1978-03-07 Minnesota Mining And Manufacturing Company Wax-stripping cleaning composition
FR2629095B1 (fr) * 1988-03-22 1990-09-28 Reckitt Colman Composition nettoyante pour surfaces dures
AU627734B2 (en) * 1988-06-13 1992-09-03 Colgate-Palmolive Company, The Stable and homogeneous concentrated all purpose cleaner
US5080822A (en) * 1990-04-10 1992-01-14 Buckeye International, Inc. Aqueous degreaser compositions containing an organic solvent and a solubilizing coupler
HUT70082A (en) * 1992-06-18 1995-09-28 Unilever Nv Solvent containing aqueous cleaning composition and cleaning process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9507974A1 *

Also Published As

Publication number Publication date
ATE158019T1 (de) 1997-09-15
EP0719323B1 (fr) 1997-09-10
AU7681294A (en) 1995-04-03
DE69405574D1 (de) 1997-10-16
DE69405574T2 (de) 1998-04-02
GB9319125D0 (en) 1993-11-03
WO1995007974A1 (fr) 1995-03-23
JPH09502759A (ja) 1997-03-18
DK0719323T3 (da) 1998-05-04
ES2107249T3 (es) 1997-11-16

Similar Documents

Publication Publication Date Title
US4812255A (en) Paint removing compositions
US5334331A (en) Method of activating N-methyl-2-pyrrolidone (NMP) varnish and paint remover solvents for removal of organic coatings
US6191087B1 (en) Environmentally friendly solvent
US6096699A (en) Environmentally friendly solvent
US6984269B2 (en) Cleaning surfaces
US5035829A (en) Paint removing compositions
WO2006009703A2 (fr) Solution de rinçage a base d'eau destinee a eliminer la peinture et d'autres revetements
CA2063739C (fr) Methode d'activation du n-methyl-e-pyrrolidone (nmp) et/ou du gamma-butyrolactone (blo) pour le decapage des surfaces peintes ou vernies
US9249378B2 (en) Aqueous cleaning compositions having enhanced properties
US5501816A (en) Aqueous based solvent free degreaser composition
US5415811A (en) Cleaning composition and method for utilizing same
EP0692004A1 (fr) Composition et procede perfectionnes de decapage de sols
EP0719323B1 (fr) Composition de nettoyage
US5744437A (en) Single phase liquid composition for cleaning and paint stripping and use thereof
JPH06506496A (ja) 低揮発性有機化合物の洗浄組成物及び方法
US5916860A (en) Cleaning and/or stripping composition, based on a dibasic acid ester and an ether
DE69200496T2 (de) Zusammensetzung zur Entfernung von Polymerüberzügen.
CA2154169A1 (fr) Composition de nettoyage
JPH09194888A (ja) インキおよびペースト用洗浄剤
EP1287099B1 (fr) Nettoyage de surfaces
DE4406753A1 (de) Reinigungsmittel, Verfahren zur Herstellung des Reinigungsmittels sowie seine Verwendung
US6624128B1 (en) Water miscible composition containing a carboxylic acid diester and a fatty acid salt
JPH04122800A (ja) 非ハロゲン系洗浄剤組成物
DE4228461C1 (de) Reinigungsmediumzusammensetzung
JP2021519839A (ja) 洗浄及びストリッピングのための組成物及び方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960311

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IE IT LI LU NL SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19961028

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IE IT LI LU NL SE

REF Corresponds to:

Ref document number: 158019

Country of ref document: AT

Date of ref document: 19970915

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

ET Fr: translation filed
REF Corresponds to:

Ref document number: 69405574

Country of ref document: DE

Date of ref document: 19971016

ITF It: translation for a ep patent filed
ET1 Fr: translation filed ** revision of the translation of the patent or the claims
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2107249

Country of ref document: ES

Kind code of ref document: T3

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: THE DOW CHEMICAL COMPANY

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: FIAMMENGHI-FIAMMENGHI

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: 76443

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980902

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20080912

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20080903

Year of fee payment: 15

Ref country code: IT

Payment date: 20080926

Year of fee payment: 15

Ref country code: IE

Payment date: 20080917

Year of fee payment: 15

Ref country code: FR

Payment date: 20080915

Year of fee payment: 15

Ref country code: AT

Payment date: 20080912

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080903

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20080919

Year of fee payment: 15

Ref country code: CH

Payment date: 20081002

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20080908

Year of fee payment: 15

Ref country code: ES

Payment date: 20081021

Year of fee payment: 15

Ref country code: BE

Payment date: 20080922

Year of fee payment: 15

BERE Be: lapsed

Owner name: THE *DOW CHEMICAL CY

Effective date: 20090930

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20100401

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090902

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100401

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090902

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090903

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110718

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090903