FR2700776A1 - Stabilized cleaning composition based on 1,1-dichloro-1-fluoroethane and methanol. - Google Patents

Stabilized cleaning composition based on 1,1-dichloro-1-fluoroethane and methanol. Download PDF

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Publication number
FR2700776A1
FR2700776A1 FR9300781A FR9300781A FR2700776A1 FR 2700776 A1 FR2700776 A1 FR 2700776A1 FR 9300781 A FR9300781 A FR 9300781A FR 9300781 A FR9300781 A FR 9300781A FR 2700776 A1 FR2700776 A1 FR 2700776A1
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Prior art keywords
methanol
dichloro
fluoroethane
composition
composition based
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FR9300781A
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French (fr)
Inventor
Michaud Pascal
Desbiendras Daniel
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Arkema France SA
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Elf Atochem SA
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Priority to FR9300781A priority Critical patent/FR2700776A1/en
Priority to TW083100500A priority patent/TW336956B/en
Priority to ES94400141T priority patent/ES2133502T3/en
Priority to EP94400141A priority patent/EP0609125B1/en
Priority to KR1019940001216A priority patent/KR960006562B1/en
Priority to JP6007542A priority patent/JP2510951B2/en
Publication of FR2700776A1 publication Critical patent/FR2700776A1/en
Pending legal-status Critical Current

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    • 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
    • C11D7/28—Organic compounds containing halogen
    • C11D7/30—Halogenated hydrocarbons
    • 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
    • C11D7/261—Alcohols; Phenols
    • 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
    • C11D7/5018—Halogenated solvents
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
    • C23G5/02809—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine
    • C23G5/02825—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine containing hydrogen
    • C23G5/02829—Ethanes
    • C23G5/02832—C2H3Cl2F
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
    • C23G5/02854—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons characterised by the stabilising or corrosion inhibiting additives
    • C23G5/02861—Oxygen-containing compounds
    • C23G5/02877—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
    • C11D7/267—Heterocyclic compounds
    • 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
    • C11D7/28—Organic compounds containing halogen

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Manufacturing Of Printed Wiring (AREA)

Abstract

On utilise le diméthoxyméthane ou le 1,3-dioxolane comme stabilisant d'une composition à base de 1,1-dichloro-1-fluoroéthane et de méthanol, destinée au nettoyage de surfaces solides.Dimethoxymethane or 1,3-dioxolane is used as stabilizer of a composition based on 1,1-dichloro-1-fluoroethane and methanol, intended for cleaning solid surfaces.

Description

-1 - f COMPOSITION DE NETTOYAGE STABILISEE A BASE DE-1 - f STABILIZED CLEANING COMPOSITION BASED ON

1,1-DICHLORO-1-FLUOROETHANE ET DE METHANOL  1,1-DICHLORO-1-FLUOROETHANE AND METHANOL

La présente invention concerne le domaine des hydrocarbures chlorofluorés et a plus particulièrement pour objet une composition stabilisée à base de 1,1- dichloro-1-fluoroéthane et de méthanol, utilisable comme agent de nettoyage et de dégraissage de surfaces solides, en particulier dans le défluxage des circuits  The present invention relates to the field of chlorofluorinated hydrocarbons and more particularly relates to a stabilized composition based on 1,1-dichloro-1-fluoroethane and methanol, usable as an agent for cleaning and degreasing solid surfaces, in particular in the defluxing of circuits

imprimés et le dégraissage de pièces mécaniques.  printing and degreasing of mechanical parts.

Le 1,1,2-trichloro-1,2,2-trifluoroéthane, connu dans le métier sous la désignation F 113, est largement utilisé dans l'industrie pour le nettoyage et le dégraissage des surfaces solides Il fait cependant partie des chlorofluorocarbures perhalogénés (CFC) suspectés d'attaquer et de dégrader l'ozone stratosphérique, et devra donc à brève échéance être remplacé par des substituts ayant peu ou pas  1,1,2-Trichloro-1,2,2-trifluoroethane, known in the art under the designation F 113, is widely used in industry for cleaning and degreasing solid surfaces It is, however, part of perhalogenated chlorofluorocarbons (CFC) suspected of attacking and degrading stratospheric ozone, and will therefore have to be replaced in the short term by substitutes with little or no

d'effet destructeur vis-à-vis de l'ozone, tel que le 1,1-dichloro-1fluoroéthane.  destructive effect with respect to ozone, such as 1,1-dichloro-1fluoroethane.

Ce dernier composé, connu dans le métier sous la désignation F 141 b, présente comme le F 113 I'avantage de former avec le méthanol une composition azéotropique particulièrement utile pour les opérations de nettoyage (brevets  The latter compound, known in the art under the designation F 141 b, has, like F 113, the advantage of forming with methanol an azeotropic composition which is particularly useful for cleaning operations (patents

EP 325 265, US 4 842 764 et JP 2 273 632).  EP 325,265, US 4,842,764 and JP 2,273,632).

Que l'hydrocarbure chlorofluoré associé au méthanol soit le F 113 ou le F 141 b, il est nécessaire de stabiliser la composition azéotropique pour éviter une attaque des métaux par le méthanol conduisant à la formation d'hydrogène Le nitrométhane est habituellement utilisé pour stabiliser la composition azéotropique F 113-méthanol et ce même composé a aussi été proposé dans le brevet  Whether the chlorofluorinated hydrocarbon associated with methanol is F 113 or F 141 b, it is necessary to stabilize the azeotropic composition to avoid attack of the metals by methanol leading to the formation of hydrogen Nitromethane is usually used to stabilize the azeotropic composition F 113-methanol and this same compound has also been proposed in the patent

US 4 816 174 comme stabilisant de la composition azéotropique F 141 bméthanol.  US 4,816,174 as stabilizer of the azeotropic composition F 141 b methanol.

Comme autres composés susceptibles d'être utilisés pour stabiliser cette composition azéotropique, le brevet US 4 842 764 mentionne les amines secondaires et tertiaires, les oléfines et cyclooléfines, les oxydes d'alkylène, les  As other compounds capable of being used to stabilize this azeotropic composition, US Pat. No. 4,842,764 mentions secondary and tertiary amines, olefins and cycloolefins, alkylene oxides,

sulfoxydes, les sulfones, les nitrites et nitriles, et les alcools ou éthers acétyléniques.  sulfoxides, sulfones, nitrites and nitriles, and acetylenic alcohols or ethers.

Le document JP 2 273 632 précité indique, sans préciser leur rôle, que  Document JP 2 273 632 cited above indicates, without specifying their role, that

d'autres constituants peuvent être ajoutés à la composition azéotropique F 141 b-  other constituents can be added to the azeotropic composition F 141 b-

méthanol et, à ce titre, énumère divers composés incluant des éthers comme le méthylcellosolve, le tétrahydrofurane et le 1,4-dioxane Ces deux derniers éthers ont par ailleurs été étudiés, en même temps qu'une soixantaine d'autres composés de nature très diverse, comme inhibiteurs de la réaction de l'aluminium avec les  methanol and, as such, lists various compounds including ethers such as methylcellosolve, tetrahydrofuran and 1,4-dioxane These last two ethers have also been studied, along with around sixty other compounds of very various, as inhibitors of the reaction of aluminum with

solvants chlorés tels que le 1,1-dichloroéthane, le 1,1,1trichloroéthane, le 1,1,2-  chlorinated solvents such as 1,1-dichloroethane, 1,1,1trichloroethane, 1,1,2-

trichloroéthane ou le mélange 10/90 toluène/dichlorométhane (W L Archer,  trichloroethane or the 10/90 toluene / dichloromethane mixture (W L Archer,

"Comparaison of chlorinated solvent-aluminiumm reaction inhibitors", Ind Eng.  "Comparison of chlorinated solvent-aluminumm reaction inhibitors", Ind Eng.

Chem Prod Res Dev, Vol 18 ( 2) 1979, 131-135).  Chem Prod Res Dev, Vol 18 (2) 1979, 131-135).

-2 - Il a maintenant été trouvé que le diméthoxyméthane et le 1,3dioxolane sont d'excellents stabilisants des compositions F 14 lbméthanol Ils permettent en effet d'inhiber la réaction du méthanol avec les métaux légers tels que l'aluminium et le magnésium (très sensible) et présentent à cet égard un comportement très différent de celui de composés très voisins tels que le diméthoxyéthane, le diéthyléther, le  -2 - It has now been found that dimethoxymethane and 1,3dioxolane are excellent stabilizers for compositions F 14 lbmethanol They indeed make it possible to inhibit the reaction of methanol with light metals such as aluminum and magnesium ( very sensitive) and exhibit in this respect a behavior very different from that of very similar compounds such as dimethoxyethane, diethyl ether,

méthyl tert-butyl éther, le furane et le tétrahydrofurane.  methyl tert-butyl ether, furan and tetrahydrofuran.

L'invention a donc pour objet une composition de nettoyage à base de F 141 b et de méthanol, caractérisée en ce qu'elle contient, à titre de stabilisant, de 0,01 à 1 % (de préférence 0,1 à 0,5 %) de diméthoxyméthane ou de 1,3-dioxolane  The subject of the invention is therefore a cleaning composition based on F 141 b and methanol, characterized in that it contains, as stabilizer, from 0.01 to 1% (preferably 0.1 to 0, 5%) of dimethoxymethane or 1,3-dioxolane

par rapport au poids total de méthanol et de F 141 b.  relative to the total weight of methanol and F 141 b.

Dans les compositions selon l'invention, la proportion pondérale de méthanol est avantageusement comprise entre 0,2 et 10 % et celle de F 141 b entre 99,8 et 90 % Une composition plus particulièrement préférée est celle dans laquelle les proportions respectives de méthanol et de F 141 b correspondent sensiblement à la composition azéotropique, c'est- à-dire 3 à 5 % de méthanol et 97 à 95 % de  In the compositions according to the invention, the weight proportion of methanol is advantageously between 0.2 and 10% and that of F 141 b between 99.8 and 90% A more particularly preferred composition is that in which the respective proportions of methanol and of F 141 b correspond substantially to the azeotropic composition, that is to say 3 to 5% of methanol and 97 to 95% of

F 141 b.F 141 b.

Les compositions selon l'invention ne présentent pas de point éclair dans les conditions standard de détermination et peuvent donc être employées sans danger dans les machines habituellement utilisées pour le nettoyage des flux de soudure, le dégraissage de pièces métalliques lourdes ou le nettoyage de pièces mécaniques de haute qualité et de grande précision comme, par exemple, les gyroscopes et le  The compositions according to the invention do not have a flash point under standard conditions of determination and can therefore be used without danger in the machines usually used for cleaning weld fluxes, degreasing heavy metal parts or cleaning mechanical parts. high quality and high accuracy such as, for example, gyroscopes and

matériel militaire ou aérospatial.  military or aerospace equipment.

Les exemples suivants illustrent l'invention sans la limiter.  The following examples illustrate the invention without limiting it.

EXEMPLE 1EXAMPLE 1

On prépare une composition selon l'invention en ajoutant 0,2 % en poids (soit 12 g) de 1,3-dioxolane à 5 litres de mélange azéotropique F 141 bméthanol ( 96 % de FI 41 b et 4 % de méthanol), puis on introduit cette composition dans une petite machine de nettoyage BRANSON et la porte au reflux pendant 4 heures pour  A composition according to the invention is prepared by adding 0.2% by weight (ie 12 g) of 1,3-dioxolane to 5 liters of azeotropic mixture F 141 b methanol (96% FI 41 b and 4% methanol), then this composition is introduced into a small BRANSON cleaning machine and brought to reflux for 4 hours to

que le système soit en équilibre.that the system is in balance.

On prélève alors un aliquat du retour des condensats et on l'analyse par chromatographie en phase vapeur L'examen des résultats rapportés dans le tableau suivant montre la présence de 1,3-dioxolane dans la fraction recueillie, ce qui indique que la composition selon l'invention est également stabilisée en phase  An aliquat of the condensate return is then taken and analyzed by vapor phase chromatography. Examination of the results reported in the following table shows the presence of 1,3-dioxolane in the fraction collected, which indicates that the composition according to the invention is also stabilized in phase

vapeur.steam.

-3--3-

EXEMPLE 2EXAMPLE 2

On répète l'exemple I en remplaçant les 12 g de 1,3-dioxolane par 24 g de diméthoxyméthane ( 0,4 % en poids) Après 4 heures de reflux pour que le système soit en équilibre, I'analyse d'une fraction des retours des condensats par  Example I is repeated, replacing the 12 g of 1,3-dioxolane with 24 g of dimethoxymethane (0.4% by weight) After 4 hours of reflux so that the system is in equilibrium, the analysis of a fraction condensate returns by

chromatographie en phase gazeuse indique que la phase vapeur est stabilisée.  Gas chromatography indicates that the vapor phase has stabilized.

EXEMPLE 3EXAMPLE 3

Dans un ballon de 250 ml, on introduit 100 ml de la composition de  100 ml of the composition are introduced into a 250 ml flask.

l'exemple 1 et 0,25 g de magnésium activé, puis on porte le mélange au reflux.  Example 1 and 0.25 g of activated magnesium, then the mixture is brought to reflux.

Après une semaine de reflux, I'analyse de la composition ne révèle aucune différence par rapport à la composition initiale, démontrant ainsi l'effet inhibiteur du  After a week of reflux, the analysis of the composition reveals no difference compared to the initial composition, thus demonstrating the inhibitory effect of the

1,3-dioxolane sur la réaction du magnésium et du méthanol.  1,3-dioxolane on the reaction of magnesium and methanol.

Il en est de même si l'on remplace le 1,3-dioxolane par la même proportion  It is the same if we replace 1,3-dioxolane by the same proportion

de diméthoxyméthane.of dimethoxymethane.

Au contraire, si l'on remplace le 1,3-dioxolane par la même proportion de méthyl tert-butyléther, de furane, de diéthyléther, de diméthoxyéthane ou de  On the contrary, if we replace 1,3-dioxolane with the same proportion of methyl tert-butyl ether, furan, diethyl ether, dimethoxyethane or

tétrahydrofurane, la réaction entre le magnésium et le méthanol démarre au reflux.  tetrahydrofuran, the reaction between magnesium and methanol starts at reflux.

EXEMPLE 4EXAMPLE 4

Dans une petite machine de laboratoire mono-cuve équipée d'un générateur d'ultrasons, on introduit 125 ml de la composition de l'exemple 1, puis on porte le  In a small single-tank laboratory machine equipped with an ultrasound generator, 125 ml of the composition of Example 1 are introduced, then the

liquide à l'ébullition.liquid when boiling.

Cinq circuits tests normalisés (modèle IPC-B-25), enduits de flux de soudure à base colophane (flux R 8 F de la Société ALPHAMETAL), recuits à 230 C pendant COMPOSITION (% poids) F 141 b Méthanol 1,3-dioxolane Mélange initial 95,8 4 0,2 Fraction recueillie 96,08 3,8 0,12 COMPOSITION (% poids) F 141 b Méthanol diméthoxyméthane Mélange initial 95,62 3,98 0,40 Fraction recueillie 95,77 3,99 0,24 -4- secondes et refroidis, sont immergés durant 3 minutes dans le liquide à  Five standardized test circuits (model IPC-B-25), coated with rosin-based solder flux (flux R 8 F from the company ALPHAMETAL), annealed at 230 C during COMPOSITION (% by weight) F 141 b Methanol 1.3- dioxolane Initial mixture 95.8 4 0.2 Fraction collected 96.08 3.8 0.12 COMPOSITION (% by weight) F 141 b Methanol dimethoxymethane Initial mixture 95.62 3.98 0.40 Fraction collected 95.77 3.99 0.24 -4- seconds and cooled, are immersed for 3 minutes in the liquid to

l'ébullition sous ultrasons, puis rincés dans la phase vapeur pendant 3 minutes.  boil under ultrasound, then rinse in the vapor phase for 3 minutes.

Après séchage à l'air, la qualité du nettoyage est évaluée en déterminant le taux de résidu ionique selon la procédure normalisée IPC- TM 650 n 2 3 25 et 2 3 26 et selon la norme MIL-STD-2000 La valeur obtenue, 1,87 pg éq Na CI/cm 2, est très  After air-drying, the quality of the cleaning is evaluated by determining the ionic residue level according to the standard procedure IPC-TM 650 n 2 3 25 and 2 3 26 and according to the MIL-STD-2000 standard. The value obtained, 1 , 87 pg eq Na CI / cm 2, is very

inférieure au seuil ( 2,5 pg éq Na CI/cm 2) toléré dans le domaine de l'électronique.  below the threshold (2.5 pg eq Na CI / cm 2) tolerated in the field of electronics.

EXEMPLE 5EXAMPLE 5

On répète l'exemple 4, mais avec la composition de l'exemple 2 stabilisée au  Example 4 is repeated, but with the composition of Example 2 stabilized at

diméthoxyméthane.dimethoxymethane.

Le taux de résidu ionique est alors de 1,86 pg éq Na CI/cm 2.  The rate of ionic residue is then 1.86 pg eq Na CI / cm 2.

-5--5-

Claims (4)

REVENDICATIONS 1 Composition de nettoyage à base de 1,1-dichloro-1-fluoroéthane et de méthanol, caractérisée en ce qu'elle contient, à titre de stabilisant, de 0,01 à 1 % de diméthoxyméthane ou de 1,3-dioxolane par rapport au poids total de méthanol et de  1 Cleaning composition based on 1,1-dichloro-1-fluoroethane and methanol, characterized in that it contains, as stabilizer, 0.01 to 1% of dimethoxymethane or 1,3-dioxolane by relative to the total weight of methanol and 1,1-dichloro-1 -fluoroéthane.1,1-dichloro-1-fluoroethane. 2 Composition selon la revendication 1, dans laquelle la proportion de  2 Composition according to claim 1, in which the proportion of diméthoxyméthane ou de 1,3-dioxolane est comprise entre 0,1 et 0,5 %.  dimethoxymethane or 1,3-dioxolane is between 0.1 and 0.5%. 3 Composition selon la revendication 1 ou 2, dans laquelle le méthanol  3 Composition according to claim 1 or 2, in which methanol représente 0,2 à 10 %, de préférence 3 à 5 %, du poids total de méthanol et de 1,1-  represents 0.2 to 10%, preferably 3 to 5%, of the total weight of methanol and 1.1- dichloro-1 -fluoroéthane.1-dichloro-fluoroethane. 4 Application d'une composition selon l'une des revendications I à 3 au  4 Application of a composition according to one of claims I to 3 to nettoyage de surfaces solides.cleaning of solid surfaces. Application selon la revendication 4 au défluxage des circuits imprimés et  Application according to claim 4 for defluxing printed circuits and au dégraissage des pièces mécaniques.  degreasing of mechanical parts.
FR9300781A 1993-01-27 1993-01-27 Stabilized cleaning composition based on 1,1-dichloro-1-fluoroethane and methanol. Pending FR2700776A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR9300781A FR2700776A1 (en) 1993-01-27 1993-01-27 Stabilized cleaning composition based on 1,1-dichloro-1-fluoroethane and methanol.
TW083100500A TW336956B (en) 1993-01-27 1994-01-21 Stabilized azeotropic composition based on 1, 1-dichloro-1-fluoroethane and methanol
ES94400141T ES2133502T3 (en) 1993-01-27 1994-01-24 STABILIZED CLEANING COMPOSITION BASED ON 1,1-DICHLORO-1-FLUORETHANE AND METHANOL.
EP94400141A EP0609125B1 (en) 1993-01-27 1994-01-24 Stabilized cleaning composition based on 1,1-dichloro-1-fluoroethane and methanol
KR1019940001216A KR960006562B1 (en) 1993-01-27 1994-01-24 Stabilized detergent composition based on 1,1-dichloro-1-fluoroethane and methanol
JP6007542A JP2510951B2 (en) 1993-01-27 1994-01-27 Stabilized detergent composition containing 1,1-dichloro-1-fluoroethane and methanol as main components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9300781A FR2700776A1 (en) 1993-01-27 1993-01-27 Stabilized cleaning composition based on 1,1-dichloro-1-fluoroethane and methanol.

Publications (1)

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FR2700776A1 true FR2700776A1 (en) 1994-07-29

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FR9300781A Pending FR2700776A1 (en) 1993-01-27 1993-01-27 Stabilized cleaning composition based on 1,1-dichloro-1-fluoroethane and methanol.

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EP (1) EP0609125B1 (en)
JP (1) JP2510951B2 (en)
KR (1) KR960006562B1 (en)
ES (1) ES2133502T3 (en)
FR (1) FR2700776A1 (en)
TW (1) TW336956B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900024901A1 (en) 2019-12-19 2021-06-19 Clean Consult Int S P A Cleaning composition of dimethoxymethane and dioxolane

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EP0609125A1 (en) 1994-08-03
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