EP1191095B1 - Procédé de nettoyage d'objets et liquide nettoyant - Google Patents

Procédé de nettoyage d'objets et liquide nettoyant Download PDF

Info

Publication number
EP1191095B1
EP1191095B1 EP01128155A EP01128155A EP1191095B1 EP 1191095 B1 EP1191095 B1 EP 1191095B1 EP 01128155 A EP01128155 A EP 01128155A EP 01128155 A EP01128155 A EP 01128155A EP 1191095 B1 EP1191095 B1 EP 1191095B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
liquid
active liquid
azeotropic
groups
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.)
Revoked
Application number
EP01128155A
Other languages
German (de)
English (en)
Other versions
EP1191095A3 (fr
EP1191095A2 (fr
Inventor
Oskar K. Wack
Martin Hanek
Karsten Lessmann
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.)
Drok Wack Chemie GmbH
Original Assignee
Drok Wack Chemie GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26023617&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1191095(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19609119A external-priority patent/DE19609119C2/de
Application filed by Drok Wack Chemie GmbH filed Critical Drok Wack Chemie GmbH
Priority to DE29724628U priority Critical patent/DE29724628U1/de
Publication of EP1191095A2 publication Critical patent/EP1191095A2/fr
Publication of EP1191095A3 publication Critical patent/EP1191095A3/fr
Application granted granted Critical
Publication of EP1191095B1 publication Critical patent/EP1191095B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

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
    • C11D7/32—Organic compounds containing nitrogen
    • C11D7/3227—Ethers thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
    • 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
    • C11D7/5031—Azeotropic mixtures of non-halogenated solvents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam

Definitions

  • the present invention relates to a method for cleaning objects and Materials made of metal, glass, ceramics, plastic (s) or composites thereof or Textiles.
  • the invention further relates to a cleaning liquid
  • EP-A-47 55 96 A1 describes a cleaning method in which to be cleaned Items with a non-halogenated organic solvent, the one contains hydrogenated or dehydrogenated analogue of terpene, for example at 35 ° C in Be brought into contact.
  • the residue left on the cleaned items Solvent contamination is removed by the cleaned items at elevated Temperature with an aqueous medium and / or a low boiling solvent Be brought in contact with the solvent contamination as an azeotrope evaporating.
  • the invention has for its object to provide a cleaning method that under Achieving a good cleaning effect in environmentally friendly and the ones to be cleaned Objects can be carried out gently, in particular mixtures of inorganic and organic dirt can be removed efficiently at the same time can.
  • the invention is further based on the object of providing a cleaning liquid with which the method according to the invention can be carried out.
  • Azeotropic preparations which can be used according to the invention as cleaning-active liquids first have the advantage that their liquid phase due to the water content pigment and dirt with ionic components, such as salts, dissolves well if the azeotropic preparation used as a cleaning active liquid in the liquid state comes into contact with the objects to be cleaned.
  • the lipophilic groups containing Molecules of the at least one further component which are preferably per se at ambient conditions or is also a liquid at low treatment temperatures, ensure good fat-dissolving power of the azeotropic preparation.
  • the steam is not flammable because of its high water content is.
  • Protective measures in this regard for carrying out the inventive method Device used in the process are superfluous.
  • the flash point of the Vapor if such exists at all, is above that in such a cleaning process normally occurring temperatures, but at least above the boiling temperature the liquid and advantageously above about 200 ° C.
  • a temperature above 200 ° C Flash point is particularly advantageous because of the implementation protective measures to be taken in the cleaning process are less extensive than for Use of cleaning-active liquids with lower flash points.
  • the azeotropic Preparation can be done either on the objects to be cleaned or by lowering the Temperature are condensed to the liquid phase, so that complex measures to Protection of the atmosphere surrounding the device for carrying out the method, as they are required in conventional processes, can largely be avoided.
  • An additional advantage is that it is active as a cleaning agent Liquid used azeotropic preparation because of its extensive use Recondensation is hardly used. So a closed cycle can be created in which the azeotropic preparation used as a cleaning-active liquid does not have to be replenished or only in negligibly small amounts. This will additionally supported by the fact that the liquid used according to the invention as a cleaning-active liquid azeotropic preparation can be free of surfactants, which can be found in a filtration of the active cleaning liquid for dirt separation in conventional processes on the Remove filter surface and require re-sharpening for conventionally used solutions.
  • the method according to the invention also makes complexes Types of dirt such as dried-up body fluids or other everyday occurrences Contamination caused by rain or snow Dirt etc. reliably removed from the objects to be cleaned.
  • the method according to the invention is not restricted to closed systems. It can for example in the form of an open steam jet cleaning.
  • the water content of the azeotrope from water and further component or components must be large enough that there is no flash point or the steam is not combustible.
  • the liquid and the vapor formed from it by heating must not be toxic or ozone-depleting, nor must it pose a water hazard if the preparation accidentally gets into the environment.
  • Water-soluble, homogeneous azeotrope-forming components or water-insoluble, heterogeneous azeotrope-forming components are suitable.
  • the objects to be cleaned at least once with a vapor of the azeotropic Preparation contact and steam during the duration of the contact allow the azeotropic preparation to condense on the objects to be cleaned.
  • the objects to be cleaned can be used once or several times the liquid azeotropic preparation is brought into contact, for example by immersion, Spraying, sprinkling or comparable, known per se from the prior art Liquid loading procedure. Then you can clean them Objects with the azeotropic preparation in the form of their vapor once or also be brought into contact several times.
  • the azeotropic vapor condenses regularly Preparation on the objects to be cleaned and tears off residues the contaminants removed with the objects to be cleaned.
  • the procedure be carried out in such a way that the cleaning objects at least once, but preferably several times, with one Contact vapor of the azeotropic preparation.
  • the steam also condenses here for the duration of the contact on the objects to be cleaned and thereby removes the Impurities.
  • an azeotropic preparation in the form of a mixture from water and at least one further component with molecules with hydrophilic and lipophilic groups are used, the further component (s) and the water in the phase transition liquid phase / vapor phase form an azeotrope and the azeotrope Azeotropic with miscibility gap at a temperature between 0 ° C and the temperature of the Phase transition is liquid phase / vapor phase at normal pressure. It was surprising found that azeotropes with mixture gaps have particularly advantageous cleaning properties exhibit. An azeotrope with a miscibility gap is particularly preferred a temperature in the range of 20 ° C and 110 ° C at normal pressure.
  • At normal pressure is understood to mean an atmospheric pressure (approximately 1 atm; approximately 10 5 Pa).
  • azeotropic preparations which act as cleaning-active liquid in the inventive methods can be used at low temperatures of for example 20 to 25 ° C are clear.
  • the components are complete resolved into each other.
  • the separated at elevated temperature existing phases can be carried out by suitable process steps, preferably for example by sonication with ultrasound, by intensive agitation when pumping around or stirring etc., into a milky looking emulsion.
  • This emulsion has discontinuous Droplets of the organic component (s) in a continuous aqueous Phase on.
  • the emulsion has excellent fat-dissolving power due to its content on organic components (with molecules with lipophilic groups), but dissolves due to the continuous water phase also water-soluble, e.g. ionic, impurities, for example salts. If the temperature of the azeotropic preparation is further increased this goes into the vapor phase, in which the components in the special, for the respective azeotropic typical composition.
  • organic components are the most homogeneous Form azeotropes with water, for use as organic components in the azeotropic preparations preferred for performing the method according to the present Invention can be used.
  • the invention is not based on the preferred azeotropes Connections limited.
  • the organic components of the azeotropic preparations that are in the the method according to the present invention can be chosen from organic compounds belonging to the groups alcohols, glycols, amines, ethers, Glycol ethers, esters, ketones and amino alcohols as well as N-heterocycles or organic acids belong.
  • R 1 and R 3 are hydrogen, methyl, ethyl, n-propyl, i-propyl, n-butyl, sec-butyl, i-butyl, tert-butyl, n-pentyl, n-hexyl, n-octyl, furfuryl-2, tetrahydrofuryl-2, hydroxy, methoxy, ethoxy and propoxy.
  • organic components that are used alone or in groups of several mentioned compounds together in azeotropic preparations of the cleaning active Liquid that can be used are selected from propylene glycol ether; dipropylene glycol monomethyl ether; Dipropylene glycol mono-n-propyl ether; tripropylene; 3-methoxy-3-methylbutanol; furfuryl alcohol; tetrahydrofurfuryl; 1-aminobutanol-2; monoisopropanolamine; 2-amino-2-methylpropanol-1; 2-amino-2-methyl propanediol-1,3; 3- (aminomethyl) pyridine; Ethanolamine; furfuryl; methyl; isopropyl; aminoacetaldehyde; 4-aminomorpholine; 1-methylimidazole; 1,2-dimethylimidazole; 1-vinylimidazole; 1,4-diazabicyclo [2.2.2] octane (DABCO); 1,5-
  • the cleaning-active At least one liquid for the process according to the invention is not self-evaporating cleaning booster. This should preferably be distill with the azeotropic preparation.
  • cleaning evaporators which do not evaporate independently are known to the person skilled in the art from the prior art and therefore require no further listing at this point.
  • the cleaning-active liquid has at least one Add corrosion protection additive.
  • Add corrosion protection additives are particularly advantageous if objects made of non-ferrous metals or light metals are to be cleaned.
  • aluminum parts can be cleaned excellently with an azeotropic preparation, which includes 1-methylimidazole. This acts as an inhibitor.
  • Cleaning parts out Copper can also advantageously with azeotropes comprising 1-methylimidazole Preparations are carried out. This lightens the surface.
  • the above compound can also other corrosion protection additives and inhibitors are added, as known to the person skilled in the art from the prior art are.
  • the organic component is preferably a compound that is selected is from the group dipropylene glycol monomethyl ether; Dipropylene glycol mono-n-propyl ether; tripropylene; 3-methoxy-3-methylbutanoi; furfuryl alcohol; tetrahydrofurfuryl; 1-aminobutanol-2; furfuryl; Methyl lactate and isopropyl lactate.
  • Azeotropic preparations are water and an organic component in relative terms Amounts of (100 - x)% by weight: x% by weight.
  • X is in the range of 0 ⁇ x 35 35, preferably in the range 3 ⁇ x alloy 25, particularly preferably in the range 4 ⁇ x ⁇ 15.
  • the mixing ratio of water is set and the further component (s) in the azeotropic preparation essentially on the Ratio present in the vapor coming from the liquid azeotropic preparation arises when heated.
  • the invention comprises Process for cleaning objects the step that one as cleaning-active Liquid uses an azeotropic preparation of water and two organic components.
  • An azeotropic preparation is particularly preferred as the cleaning-active liquid from water, dipropylene glycol mono-n-propyl ether and another organic component used.
  • azeotropic preparation used as a cleaning active liquid be included, for example at least one which is not self-evaporating, particularly preferred with the azeotropic preparation of distilling cleaning boosters as such is known from the prior art and has already been mentioned above, and / or at least one (with particular preference distilling with the azeotropic preparation) corrosion protection additive or corrosion protection inhibitor, as it also as such or such is known from the prior art and has already been mentioned above.
  • DABCO octane
  • the organic compounds mentioned can be used alone or in combination with one another be used.
  • a further organic component from the Group used acetic acid, hydroxyacetic acid, formic acid and butyric acid can be used alone or in combination with one another or with others, for example the organic components mentioned above can be used.
  • the cleaning active is used Liquid an azeotropic preparation of water, a glycol ether (preferred Dipropylenglykolmono-n-propylether) and another organic component in relative amounts of 90% by weight: (10 - y)% by weight y% by weight, where y is in the range of 0 ⁇ y 5 5, particularly preferably in the range from 0 ⁇ y 2 2.
  • a device in which the method according to the invention can be carried out is shown in the attached figure shows schematically: a storage tank 2 with a separation chamber 4 and an overflow chamber 6 is connected via a feed pump 8 and a heating device 10 a cleaning device 12 connected.
  • a line leads from the bottom of the cleaning device 12 to a filter device 16.
  • the filter device 16 is connected via a line with a feed pump 18 to the top the separation chamber 4 connected.
  • Another line leads from the filter device 16 via a vacuum pump 20 through a condenser 22 and a cooler 24 back to Separation chamber 4.
  • a line leads from the overflow chamber 6 via a feed pump 26 through a Heat exchanger 28 into a distillation device 30 and from there into the cleaning device 12 or back to the storage tank 2.
  • a feed line 32 leads to loading the storage tank 2 with cleaning-active Liquid.
  • the storage tank 2 further contains a device, not shown for removing sludge that settles in the separation chamber 4.
  • a ventilation line leads into the normally tightly sealed cleaning device 12 34th
  • Embodiment first a liquid cleaning, in which the feed pump 8 is put into operation and cleaning-active liquid, which may be in the heating device 10 can be tempered, the cleaning device 12 is supplied.
  • the Cleaning device 12 is an immersion bath of the rotating items to be cleaned and / or spraying the items to be cleaned with liquid.
  • the liquid is pumped through the feed pump 18 withdrawn from the cleaning device 12 through the filter device 16 and the separation chamber 4 fed.
  • the filter device 16 predominantly settles inorganic dirt that is drawn off. In the separation chamber 4 settles mainly greasy dirt, which is also removed.
  • liquid cleaning stage described by way of example is followed by rinsing under the same conditions with active cleaning liquid from the tank 6.
  • a steam cleaning stage or steam rinsing stage in which the feed pump 26 is put into operation so that the cleaning-active liquid in the distillation device 30 heated and converted into steam. Due to the azeotropic character the vapor used in the azeotropic preparation used as a cleaning active liquid a predetermined content of water and the further component or the others Components.
  • the liquid azeotropic preparation is preferably already made of it Components put together, as does the content of the corresponding components in the vapor phase.
  • the steam arrives in the cleaning device 12 in intensive contact with the material to be cleaned, taking at least part of the steam condensed.
  • the condensate is removed by means of the feed pump 18 after flowing through the filter device 16 fed to the deposition chamber.
  • Convection drying advantageously follows steam cleaning or steam rinsing or vacuum drying.
  • 12 steam is sucked off by means of the vacuum pump 20, whereby in the cleaning device 12 forming condensate flows through the filter device 16.
  • the one with the condensate is mixed with steam after flowing through the condenser 22 and Cooler 24 is supplied to the storage tank 2 as liquid again.
  • the separation chamber 4 is on the ventilation line 34 ventilated, and the cleaned good can be removed.
  • the objects to be treated are in a much better condition after the treatment than after treatment in a conventional process, i.e. using more common organic solvent for the cleaning steps under identical conditions.
  • organic dirt including Lipophilic or oil-like or fat-like substances is removed, but also all inorganic dirt, especially inorganic salts from sweat, color pigments etc.
  • the treated objects have no unpleasant smell and show an excellent appearance.
  • azeotropic preparations with a miscibility gap are surprising good and conventional preparations clearly superior cleaning behavior.
  • azeotropic preparations with a miscibility gap in the case of the use of azeotropic preparations with a miscibility gap, in the case of Treatment in the liquid phase of the objects to be cleaned according to the invention with an azeotropic preparation brought into contact, which is in a state in which the components of the azeotropic preparation are present in separate or at least partially separate phases.
  • the liquid azeotropes present in the phase separation state Preparations treated with ultrasound or pumped intensively or stirred, see above that a milky emulsion of the azeotropic preparation forms. This emulsion dissolves not only good fatty or oily components, but also ionic or salt-like impurities.
  • the azeotropic preparation - as described above - is heated, and a steam is produced in which the components are present in the proportions, which are determined by the characteristic azeotropic properties.
  • the steam condenses at least in part on the objects to be cleaned, and it turns the same milky emulsion like in the liquid phase. In this case too it will be excellent Fat and salt dissolving power observed.
  • the latter embodiment of the method is particularly advantageous for cleaning metal parts.
  • azeotropes with a gap between lapping and polishing pastes from metal parts.
  • an azeotropic preparation mixed with acidic additives used as a cleaning active liquid used as a cleaning active liquid. The cleaning is done in the above Single-chamber system and can be carried out continuously or in a batch process.
  • SMD Survace Mount Devices
  • SMD Survace Mount Devices
  • the adhesive is usually applied using dispenser systems or templates, before the circuit boards are attached. Misprinted / dispensed items can be cleaned Printed circuit boards or stencils.
  • azeotropic preparations achieve cleaning results that those with significantly exceed conventional solvents such as butyl acetate or isopropanol. moreover are protective measures (e.g. against explosions in the case of those who are at risk Solvents) superfluous.
  • the Cleaning takes place by spraying, spray rinsing and drying the objects to be cleaned preferably in the immersion process with ultrasound (cleaning stage), rinsing with or without Ultrasound (rinsing stage) and drying. Cleaning is preferred at one temperature performed in the range of 40 to 60 ° C, but is not on this temperature range limited. Especially when treating the objects to be cleaned in the cleaning stage with the steam of the azeotropic preparation, the temperature can be significantly higher, for example are also above 100 ° C.
  • Azeotropic preparations are particularly preferred for cleaning processes used according to Table I below.
  • Ratios of organic components O.K.
  • water the boiling points of each azeotropic preparation as well as the temperatures at which to be cleaned
  • Objects with the respective azeotropic preparation are treated as examples can.
  • the invention is not limited to the specified conditions Components and treatment temperatures limited.
  • azeotropes with a mixture gap three-component mixtures of water, dipropylene glycol mono-n-propyl ether and amine compounds or N-heterocyclic compounds or organic acids according to Table II below are particularly preferably used according to the invention.
  • An exemplary, but not restrictive composition of the azeotropes is as follows: water (90% by weight), dipropylene glycol mono-n-propyl ether (10 - y% by weight), y% by weight of the compounds given in Table II.
  • Component (OK) OK water ratio No. 1 8.9: 91.1 99.2 60 No. 2 7.9: 92.1 99.1 60 No.
  • Table II also shows the boiling point (° C) of water, dipropylene glycol mono-n-propyl ether and the specified compounds formed azeotropic preparation.
  • the drum of the cleaning device 12 described above was also cleaned Material loaded.
  • the material consisting of textiles was in the first step under Liquid cleaning conditions treated with azeotropic preparations at elevated temperatures.
  • the azeotropic preparations and the respective treatment temperatures are in of Table I above.
  • the material was azeotroped while moving in the warm Preparation immersed.
  • the warm azeotropic preparation was in a closed Circulated from the drum of the cleaning device 12 through a filter device 16 and the separation chamber 4 fed.
  • the filter device 16 predominantly settled inorganic dirt (salts) that has been removed.
  • In the deposition chamber 14 mainly fatty dirt settled, which was also removed.
  • the first treatment step was followed by a second treatment step, which is also under Liquid treatment conditions was performed.
  • Fresh azeotropic preparation (composition: see table I; in each run had the azeotropic preparation of the second Treatment step same composition as that of the first step) was the Drum of the cleaning device 12 fed at an elevated temperature.
  • the material was in a second closed circuit from the drum of the cleaning device 12 fed to the separating chamber 4 via a filter device 16.
  • the deposition of inorganic and organic substances was carried out in the same way as in the first treatment step.
  • the second treatment step was followed by a third treatment step, in which the one to be treated Material was treated with the steam of the respective azeotropic preparation.
  • the Azeotropic preparation was made after passing the feed pump into a distiller transferred to the vapor phase.
  • the steam was in intimate contact with the person to be treated Material brought into the drum of the cleaning device 12.
  • the liquid out the cleaning step after the condensation was removed from the drum and after passing through the filter device 16 to separate the organic substances Separation chamber 4 fed where organic contaminants have been separated.
  • the drum was evacuated, for example to 10 -2 bar, and the remaining steam was drawn off in the same manner as described above.
  • the warm treated material released the water and the organic component of the azeotropic preparation in vacuo so that it was dry after 10 minutes of vacuum treatment.
  • the material to be treated was in much better condition than that of the conventional material Had been treated wisely. Both inorganic and organic contaminants were completely removed. The material had no unpleasant smell and an excellent appearance. It could be ironed or pressed with good results become.
  • the third step (steam treatment) is not absolutely necessary after liquid cleaning; the same results as described above were obtained even without the steam treatment achieved. It is also possible to follow the steps of the treatment of the cleaning material with liquid azeotropic preparation through treatment steps to be completely or partially replaced with vaporous azeotropic preparation. This one too The same cleaning results were achieved with the procedure.
  • Misprinted printed circuit boards or stencils from SMD production were used with a Three-component mixture of water, dipropylene glycol mono-n-propyl ether or one Treated amine compound or N-heterocyclic compound or organic acids, as can be seen, for example, from Table II.
  • the three-component mixtures that as active cleaning liquids were used, consisted of 90 wt .-% of water, too (10 - y)% by weight of dipropylene glycol mono-n-propyl ether and y% by weight of one of the Compounds listed in Table II. The cleaning was done by spraying.
  • the circuit boards or stencils were used to remove SMD adhesive in the table II specified boiling temperatures with the liquid azeotropic preparations below Use of ultrasound treated (however, ultrasound is not essential to achieve good cleaning results required).
  • the azeotropic preparations were in the form of a milky emulsion that became almost clear when ultrasound was applied. There was one complete removal of the adhesive without protective devices, for example for protection before explosions, had to be provided in the system.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)

Claims (12)

  1. Procédé de nettoyage d'un objet au moyen d'un liquide nettoyant qui contient plus de 65 % en poids d'eau et au moins un composant organique qui forme une lacune de miscibilité lors du mélange avec l'eau à la température régnant lors du nettoyage liquide.
  2. Procédé selon la revendication 1, caractérisé en ce que le contact entre l'objet à nettoyer et le liquide nettoyant s'effectue sous l'action d'ultrasons.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le composant organique est choisi de façon que la lacune de miscibilité se produise lors du réchauffement du liquide nettoyant.
  4. Procédé selon la revendication 3, caractérisé par une étape de procédé au cours de laquelle la vapeur du liquide nettoyant se condense sur l'objet à nettoyer.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que le composant organique est choisi de façon que le liquide nettoyant forme un azéotrope.
  6. Procédé selon la revendication 5, caractérisé en ce que le liquide nettoyant a une composition correspondant à sa vapeur.
  7. Procédé selon la revendication 6, caractérisé en ce que le liquide nettoyant est guidé dans un circuit de condensation-évaporation contenant un filtre.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce qu'on utilise comme solvant un composant organique de formule générale R1 - [X]n - R3, où
    R1 et R3 représentent indépendamment l'un de l'autre H ; des groupes alkyle en C1 à C18 linéaires ou ramifiés saturés ou non saturés dans lesquels un ou plusieurs groupes -CH2- non voisins peuvent être remplacés par -O- ; des groupes alkyle cycliques en C1 à C8 saturés ou non saturés dans lesquels un ou plusieurs groupes -CH2- non voisins peuvent être remplacés par -O- ; hydroxy ; alcoxy en C1 à C8 ; amino, où un ou plusieurs des hydrogènes peuvent être remplacés par des groupes alkyle en C1 à C8 ; et
    X représente -O- ; -C(=O)- ; -C(=O)-O ; -NH- ; -NR1- ; -N(OH)- ; des groupes alkyle en C1 à C8 linéaires ou ramifiés dans lesquels un ou plusieurs groupes -CH2- non voisins peuvent être remplacés par -O- ; et n représente des entiers de 1, 2, 3, etc.
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que la teneur en eau du liquide nettoyant est supérieure à 75 % en poids, de préférence à 85 % en poids.
  10. Procédé selon l'une des revendications 1 à 9, caractérisé en ce que le liquide nettoyant contient un renforçateur de nettoyage ne s'évaporant pas automatiquement et/ou un additif de protection contre la corrosion.
  11. Procédé selon l'une des revendications 1 à 10, caractérisé en ce que le liquide nettoyant contient, outre un glycoléther, de préférence le dipropylèneglycolmono-n-propyléther, un autre composant organique.
  12. Procédé selon l'une des revendications 1 à 11, caractérisé en ce que la température régnant lors du nettoyage liquide est de l'ordre de 40 à 60°C.
EP01128155A 1996-03-08 1997-03-10 Procédé de nettoyage d'objets et liquide nettoyant Revoked EP1191095B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29724628U DE29724628U1 (de) 1996-03-08 1997-03-10 Reinigungsflüssigkeit

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19609119 1996-03-08
DE19609119A DE19609119C2 (de) 1996-03-08 1996-03-08 Verfahren zum Reinigen von Gegenständen
US70523796A 1996-08-30 1996-08-30
US705237 1996-08-30
EP97914208A EP0885287A1 (fr) 1996-03-08 1997-03-10 Procede pour le nettoyage d'objets

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97914208A Division EP0885287A1 (fr) 1996-03-08 1997-03-10 Procede pour le nettoyage d'objets

Publications (3)

Publication Number Publication Date
EP1191095A2 EP1191095A2 (fr) 2002-03-27
EP1191095A3 EP1191095A3 (fr) 2002-08-07
EP1191095B1 true EP1191095B1 (fr) 2003-05-28

Family

ID=26023617

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97914208A Withdrawn EP0885287A1 (fr) 1996-03-08 1997-03-10 Procede pour le nettoyage d'objets
EP01128155A Revoked EP1191095B1 (fr) 1996-03-08 1997-03-10 Procédé de nettoyage d'objets et liquide nettoyant

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97914208A Withdrawn EP0885287A1 (fr) 1996-03-08 1997-03-10 Procede pour le nettoyage d'objets

Country Status (3)

Country Link
EP (2) EP0885287A1 (fr)
DE (1) DE59710188D1 (fr)
WO (1) WO1997032963A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2749343C1 (ru) * 2020-10-22 2021-06-08 Акционерное общество «Обнинское научно-производственное предприятие «Технология» им. А.Г.Ромашина» Способ удаления индикаторной проникающей жидкости с поверхности стеклокерамических изделий с использованием ультразвуковых волн

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6511546B1 (en) 1998-11-25 2003-01-28 Petroferm Inc. Aqueous cleaning
DE19908434A1 (de) * 1999-02-26 2000-10-05 Wack O K Chemie Gmbh Verfahren und Reinigungsflüssigkeit zum Flüssigreinigen von Gegenständen
DE10060891C1 (de) 2000-12-07 2002-07-25 Wack O K Chemie Gmbh Verfahren zum Flüssigreinigen von Gegenständen
DE102005011236B3 (de) * 2005-03-11 2006-10-12 Pero Ag P. Erbel Maschinen- U. Apparatebau Verfahren und Vorrichtung zur Reinigung und Trocknung von Reinigungsgut mit Hilfe azeotroper Gemische
EP2108464A1 (fr) 2008-04-09 2009-10-14 Dow Global Technologies Inc. Procédé de nettoyage d'articles
IT1395090B1 (it) * 2009-04-08 2012-09-05 Lasa Impianti Srl Apparecchiatura a basso impatto ambientale per il lavaggio di particolari metallici e non metallici che necessitano di un altro grado di pulizia
AU2017221372B2 (en) 2016-02-18 2019-04-18 Ecolab Usa Inc. Solvent application in bottle wash using amidine based formulas

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8918504D0 (en) * 1989-08-14 1989-09-20 Bush Boake Allen Ltd Methods and compositions for cleaning articles
GB9017841D0 (en) * 1990-08-14 1990-09-26 Bush Boake Allen Ltd Methods and compositions for cleaning articles
GB2265631A (en) * 1992-03-25 1993-10-06 Exxon Chemical Patents Inc Halocarbon-free solvent cleaning method
JPH0754178A (ja) * 1993-08-16 1995-02-28 Showa Shell Sekiyu Kk 脱脂方法
JPH0796257A (ja) * 1993-09-27 1995-04-11 Sankei Giken Kogyo Kk 脱脂洗浄方法および装置
JP2641152B2 (ja) * 1993-09-27 1997-08-13 三恵技研工業株式会社 ポリプロピレン系樹脂成形品の塗装前処理剤および前処理方法
JP3375097B2 (ja) * 1994-08-31 2003-02-10 株式会社トクヤマ 物品の洗浄方法
GB9505055D0 (en) * 1995-03-09 1995-05-03 Dow Europ Sa Cleaning process and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2749343C1 (ru) * 2020-10-22 2021-06-08 Акционерное общество «Обнинское научно-производственное предприятие «Технология» им. А.Г.Ромашина» Способ удаления индикаторной проникающей жидкости с поверхности стеклокерамических изделий с использованием ультразвуковых волн

Also Published As

Publication number Publication date
EP1191095A3 (fr) 2002-08-07
EP0885287A1 (fr) 1998-12-23
DE59710188D1 (de) 2003-07-03
EP1191095A2 (fr) 2002-03-27
WO1997032963A1 (fr) 1997-09-12

Similar Documents

Publication Publication Date Title
DE3316724A1 (de) Mittel und verfahren zur reinigung und passivierung von metallen im spritzverfahren
EP1191095B1 (fr) Procédé de nettoyage d'objets et liquide nettoyant
EP0986631A1 (fr) Detergent faiblement moussant
EP0595881B1 (fr) Utilisation de compositions sans hydrocarbures halogenes pour nettoyer des ensembles electroniques et electriques des residus de soudure
EP3158049A1 (fr) Agent de nettoyage pour une élimination douce d'encres et de marqueurs
DE3329077A1 (de) Abbeizloesung
DE2253896A1 (de) Verfahren zur herstellung eines ganz wenig nicht umgesetztes oel enthaltenden, oberflaechenaktiven mittels
WO1991009925A2 (fr) Utilisation d'une combinaison de tensio-actifs non ioniques
EP2446008B1 (fr) Utilisation du diether pendant le nettoyage a sec de matiere textiles, maroquinerie et des fourrures
DE2202928B2 (de) Reinigungszusammensetzungen
EP0880491B1 (fr) Procede d'obtention de glycols a faible teneur en aldehyde
DE2853125A1 (de) Verdraengungszusammensetzung fuer fluessiges wasser
WO1994005766A1 (fr) Detergent pour le nettoyage de circuits imprimes et de composants electroniques, procede pour sa fabrication et son mode d'utilisation
DE2855104A1 (de) Entfettungsmittel zur behandlung von metalloberflaechen
DE69818059T2 (de) Stabilisierte alkylbromidhaltige lösungsmittel
DE4228461C1 (de) Reinigungsmediumzusammensetzung
DE69432702T2 (de) Verfahren zur herstellung von sauberen gegenstaenden
DE4227130A1 (de) Zusammensetzungen aus 1-Chlor-2,2,2-trifluorethyldifluormethylether und partiell fluorierten Alkanolen
DE60309036T2 (de) Verfahren zur reinigung der kammer einer zur herstellung von organischen elektrolumineszenzelementen verwendeten vakuumaufdampfanlage
DE19609119C2 (de) Verfahren zum Reinigen von Gegenständen
DE1546079A1 (de) Verfahren zum Entfernen von Harz-Flussmitteln von elektrischen Schaltbrettern
DE2300492A1 (de) Verfahren zur abtrennung von betain aus einer verunreinigungen enthaltenden waessrigen loesung
EP0616016B1 (fr) Agent de décapage
DE2321880C2 (de) Lösungsmittelgemische für die Reinigung von gelöteten elektrischen Bauteilen und ihre Verwendung
DE1145892B (de) Verfahren zum Reinigen von Metalloberflaechen und Emulsionsreiniger zu dessen Durchfuehrung

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: 20011127

AC Divisional application: reference to earlier application

Ref document number: 885287

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HANEK, MARTIN

Inventor name: LESSMANN, KARSTEN

Inventor name: WACK, OSKAR K.

RTI1 Title (correction)

Free format text: METHOD FOR CLEANING OBJECTS AND CLEANING FLUID

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB IT

17Q First examination report despatched

Effective date: 20021007

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

AKX Designation fees paid

Designated state(s): DE ES FR GB IT

AC Divisional application: reference to earlier application

Ref document number: 0885287

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Designated state(s): DE ES FR GB IT

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20030528

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59710188

Country of ref document: DE

Date of ref document: 20030703

Kind code of ref document: P

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030908

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

ET Fr: translation filed
26 Opposition filed

Opponent name: KISSEL & WOLF GMBH

Effective date: 20040227

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

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

Ref country code: GB

Payment date: 20070323

Year of fee payment: 11

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

Ref country code: DE

Payment date: 20070330

Year of fee payment: 11

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20071126

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

Ref country code: FR

Payment date: 20070321

Year of fee payment: 11

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO