EP0890670B1 - Compositions en aérosol pour détachage - Google Patents

Compositions en aérosol pour détachage Download PDF

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Publication number
EP0890670B1
EP0890670B1 EP98305491A EP98305491A EP0890670B1 EP 0890670 B1 EP0890670 B1 EP 0890670B1 EP 98305491 A EP98305491 A EP 98305491A EP 98305491 A EP98305491 A EP 98305491A EP 0890670 B1 EP0890670 B1 EP 0890670B1
Authority
EP
European Patent Office
Prior art keywords
weight
composition
composition according
microemulsion
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.)
Expired - Lifetime
Application number
EP98305491A
Other languages
German (de)
English (en)
Other versions
EP0890670A3 (fr
EP0890670A2 (fr
Inventor
Jan S.C. Johnson Europlant bv de Jager
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.)
SC Johnson and Son Inc
Original Assignee
SC Johnson and Son Inc
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 SC Johnson and Son Inc filed Critical SC Johnson and Son Inc
Publication of EP0890670A2 publication Critical patent/EP0890670A2/fr
Publication of EP0890670A3 publication Critical patent/EP0890670A3/fr
Application granted granted Critical
Publication of EP0890670B1 publication Critical patent/EP0890670B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5027—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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0017—Multi-phase liquid compositions
    • C11D17/0021—Aqueous microemulsions
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0043—For use with aerosol devices
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/18—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
    • C11D7/24—Hydrocarbons

Definitions

  • the present invention relates to compositions suitable for use in aerosol dispensers for removing spots and stains from textiles.
  • Stains and spots can be removed from many textiles by aqueous washing media, as in conventional laundering. However many textiles are adversely affected if brought into contact with water, and an extended drying time may be needed if a conventional aqueous washing medium is used. It is known to remove stains and spots from textiles by the use of so-called "dry cleaning " sprays in which a non-aqueous medium is sprayed on the textile from an aerosol dispenser using a propellant to force the cleaning medium from the dispenser.
  • the liquid medium may contain an absorbent solid.
  • Halogenated hydrocarbons have been used as the cleaning fluid. Halogenated hydrocarbons have also been used as aerosol propellants.
  • halogenated hydrocarbons are no longer acceptable in products released to the atmosphere because of their adverse effect on the ozone layer.
  • Hydrocarbon propellants e.g. propane or butane
  • hydrocarbon solvents have been used as the cleaning liquid.
  • the use of these hydrocarbons introduces a fire hazard because of their flammability.
  • the hydrocarbon solvents although less volatile than the propellant, must be sufficiently volatile to evaporate readily from the surfaces on to which they are sprayed.
  • a spark may be produced which may ignite the hydrocarbons.
  • US-A- 5 269 958 discusses these problems and proposes to overcome them by eliminating the hydrocarbon propellant and solvents.
  • the composition disclosed contains a small amount of water, together with major amounts of dimethyl ether as propellant and dimethoxymethane to remove oil-based stains, a co-solvent, e.g. isopropanol, and a particulate absorbent.
  • GB-A-2 247 894 discloses prewash cleaning compositions in the form of water-in-oil-microemulsions/and/include hydrocarbon solvent, water, nonionic surfactant and dimethylether.
  • oxygenated solvents are relatively expensive and it would be highly desirable to be able to produce a spray cleaning composition which made use of the cheaper and more readily available hydrocarbon solvents but which reduced the disadvantages associated with the use of hydrocarbons.
  • a self-pressurized aerosol composition for spot dry cleaning of a textile comprising
  • the propellant may be a liquefied petroleum gas (LPG).
  • LPG liquefied petroleum gas
  • the propellant is preferably dimethyl ether (DME). This is water-soluble and is less flammable than the hydrocarbon propellants.
  • the quantity of propellant may for example be 2.0 to 50 % by weight of the total composition, preferably 30 to 45 % by weight, e.g ca. 35% by weight.
  • the volatile organic solvent is preferably an alkane having from 5 to 8 carbon atoms in the molecule or a mixture of such alkanes.
  • An example of a suitable volatile organic solvent is a pentane/heptane blend. Such a blend is commercially available as Exxsol 45/100 from Exxon.
  • the quantity of solvent is preferably in the range 10 to 50% by weight of the total composition, more preferably 15 to 45% by weight of the total composition.
  • the particulate absorbent capable of absorbing a stain from a textile on to which the composition is sprayed is one which has a particle size which permits it to be sprayed from a self-pressurized aerosol dispenser.
  • suitable particulate absorbents are fumed or pyrogenic silica, precipitated silica, surface-treated silica, calcium silicate, calcium carbonate, magnesium silicate, starch, clays, talc, magnesium oxide. The nature of the particulate absorbent is discussed in detail in US-A-5 269 958.
  • the quantity of particulate absorbent is preferably 1% to 10%, preferably 5% to 9%, more preferably from 6% to 8% of the total weight of composition.
  • Water is incorporated into the composition in the form of a microemulsion in which water is the internal phase. Despite the water being in the form of droplets within an organic continuous phase it has been found that the presence of a relatively small amount of water has a significant effect on flammability and prevents the production of static electricity if the can is punctured.
  • Water-in-oil emulsions suitable for use in the present invention are available from the firm of Dow under the name "Invert Solvents".
  • Emulsions in which the continuous phase is an aliphatic hydrocarbon phase are used, preferably a low flash point hydrocarbon phase which evaporates readily, e.g Dow "Invert 1000".
  • the boiling point is preferably less than 90 °C
  • the viscosity is preferably less than 7 cps at 25°C
  • the flash point (closed cup) is preferably below 0°C.
  • the water content is preferably in the range 45% to 55% by weight of the microemulsion.
  • the quantity of water-in-oil emulsion in the composition is in the range 5 to 50%, preferably 15 to 40%, e.g. 10 to 30 % of the total weight of composition.
  • the absorbent solid when used in the conventional aerosol composition using hydrocarbon solvents and hydrocarbon propellants usually shows no tendency to cake or clump and can be readily dispersed in the composition by shaking.
  • an anti-caking agent in the composition.
  • An example of a suitable anti-caking agent is diammonium phosphate. This may be present, for example, in an amount in the range 0.2 to 1.5% 5 by weight of the total composition, e.g. 0.5% by weight.
  • dimethoxy methane also known as methylal
  • This preferably constitutes not more than 5% of the composition.
  • a self-pressurized spot remover composition suitable for use in an aerosol dispenser for removing stains from textiles was prepared as follows. An intermediate composition was first prepared from the following ingredients. Ingredient Amount (% wt of final product) Hydrocarbon solvent 35.550 Microemulsion 20.000 Absorbent 07.500 Anti-caking agent 00.500 Silicone oil 00.200 Surfactant 01.000 Ammonia 25% 00.250
  • hydrocarbon solvent was a pentane/heptane blend available from Exxon under the trade name "Exxsol DSP 45/100".
  • the microemulsion was a water-in-oil microemulsion supplied by Dow under the name "Invert 1000". It contained about 50% by weight of water with the continuous phase being a low flash point aliphatic hydrocarbon. It had a boiling point of 84°C, a freezing point of -2°C, a vapour pressure of 34.9 mm Hg at 20°C, a viscosity of 6.2 cps,
  • the absorbent was a precipitated silicon dioxide from Akzo available under the trade name "Ketjensil SM604" and with an average particle size of 12 ⁇ m.
  • the anti-caking agent was diammonium phosphate. In addition to having an anti-caking effect it acts as a corrosion inhibitor and has a quenching effect on flammability.
  • the silicone oil was silicone oil with a viscosity of 1000 cps at 25 °C is included to provide a lubricating effect for the absorbent solid in the plastic channels of the valve and actuator of the dispensing device used to dispense the composition.
  • the surfactant was a 70% solution of sodium dioctyl sulphosuccinate in petroleum distillate commercially available from Cytec under the trade name "Aerosil OT-S”. It acts as an additional emulsifier and helps to remove water-based stains.
  • the ammonia was a 25% by weight aqueous solution. It is used to increase the pH of the composition to about pH 8.5 to minimize corrosion of aerosol canisters.
  • the intermediate product was prepared by mixing the liquids, then adding the two solids and agitating with a Silverson-type mixer until a smooth particle free mixture was obtained.
  • Propellant (dimethyl ether) was then added in an amount corresponding to 35% of the total composition (i.e. the composition after the dimethyl ether had been added).
  • a composition was prepared as in Example 1 except that the intermediate composition was prepared using the amounts of ingredients set out below.
  • Ingredient Amount (% wt of final product)
  • Hydrocarbon solvent 40.549 Microemulsion 15.000 Absorbent 07.500
  • Anti-caking agent 00.500 Silicone oil 00.200
  • Surfactant 01.000 Ammonia 25% 00.250
  • a composition was prepared as in Example 1 except that the intermediate composition was prepared using the amounts of ingredients set out below.
  • Ingredient Amount (% wt of final product)
  • Hydrocarbon solvent 30.549 Microemulsion 25.000 Absorbent 07.500
  • Anti-caking agent 00.500 Silicone oil 00.200
  • Surfactant 01.000 Ammonia 25% 00.250
  • a composition was prepared as in Example 1, but with the intermediate composition as set out below, and using Liquefied Petroleum Gases (LPG 48) as propellant.
  • Ingredient Amount (% wt of final product)
  • Hydrocarbon solvent 26.520
  • Microemulsion 2 0.000 Absorbent 07.500
  • Anti-caking agent 00.500
  • Silicone oil 00.200 Ammonia 25% 00.250
  • the quantity of LPG used was 45.00% of the weight of the total composition.
  • valve system was used with the aerosol container used to dispense the composition in all the tests.
  • the discharge rates vary in some cases because the narrow channels in the valve system can become partialy clogged with powder particles.
  • the weights of sample sprayed are however sufficiently close for the tests to provide useful results.
  • Discharge rate 0.665 g/s Weight of sample sprayed 15.67 g Time taken for explosion 23.19 s Discharge rate 0.598 g/s Weight of sample sprayed 14.86 g Time taken for explosion 25.03 s Ignition distance 20 cm
  • compositions of Examples 1, 2, and 3 gave satisfactory removal of stains from textiles without excessive drying times and without adversely affecting the textile because of the presence of water on a variety of oil-based and water-based stains.
  • compositions based on the microemulsions and using dimethyl ether as propellant gave the best flammability results.
  • Better flammability results compared with conventional aerosol dry cleaning compositions are obtained using compositions containing microemulsions even when using hydrocarbon propellants.
  • compositions containing microemulsions will eliminate the risk of static electricity discharge leading to ignition if the aerosol dispenser is accidentally punctured.
  • Conventional compositions can reduce the risk of static electricity discharge by incorporating organic antistatic agents but these are believed to be more dependent on the ambient atmospheric conditions (temperature, humidity) for successful results.

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)
  • Cosmetics (AREA)

Claims (11)

  1. Composition en aérosol auto-pressurisée pour le nettoyage à sec de taches d'un textile, ladite composition comprenant :
    a) un propulseur ;
    b) un solvant hydrocarboné volatil pour éliminer des taches, dans lequel le solvant est un alcane ayant de 5 à 8 atomes de carbone dans la molécule ou est un mélange de tels alcanes ;
    c) un adsorbant particulaire capable d'absorber une tache d'un textile sur lequel il est pulvérisé ; et
    d) une micro-émulsion eau-dans-huile dans une quantité de 5 % à 50 % en poids de la composition totale comprenant le propulseur, ladite micro-émulsion eau-dans-huile contenant de 2,5 % à 25 % en poids d'eau rapportés au poids de la composition totale comprenant le propulseur, dans laquelle la micro-émulsion eau-dans-huile présente une phase continue qui est un hydrocarbure aliphatique.
  2. Composition selon la revendication 1, dans laquelle le propulseur est le diméthyléther.
  3. Composition selon la revendication 1 ou la revendication 2, dans laquelle la micro-émulsion présente un point d'ébullition inférieur à 90°C.
  4. Composition selon l'une quelconque des revendications précédentes, dans laquelle la viscosité de la micro-émulsion est inférieure à 7 cps à 25°C.
  5. Composition selon l'une quelconque des revendications précédentes, dans laquelle la micro-émulsion a un point éclair (bol fermé) inférieur à 0°C.
  6. Composition selon l'une quelconque des revendications précédentes, dans laquelle la micro-émulsion présente une teneur en eau dans l'intervalle de 45 % à 55 % en poids.
  7. Composition selon l'une quelconque des revendications précédentes qui contient de 15 à 40 % en poids de la micro-émulsion.
  8. Composition selon l'une quelconque des revendications précédentes qui contient de 10 à 50 % en poids de solvant hydrocarboné volatil.
  9. Composition selon l'une quelconque des revendications précédentes qui contient de 15 à 45 % en poids de solvant hydrocarboné volatil.
  10. Composition selon l'une quelconque des revendications précédentes, dans laquelle la composition contient en outre un agent anti-prise en masse.
  11. Composition selon la revendication 10, dans laquelle l'agent anti-prise en masse est le phosphate de diammonium.
EP98305491A 1997-07-11 1998-07-10 Compositions en aérosol pour détachage Expired - Lifetime EP0890670B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9714707 1997-07-11
GBGB9714707.8A GB9714707D0 (en) 1997-07-11 1997-07-11 Compositions suitable for use in aerosol dispensers

Publications (3)

Publication Number Publication Date
EP0890670A2 EP0890670A2 (fr) 1999-01-13
EP0890670A3 EP0890670A3 (fr) 2000-10-11
EP0890670B1 true EP0890670B1 (fr) 2003-05-21

Family

ID=10815759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98305491A Expired - Lifetime EP0890670B1 (fr) 1997-07-11 1998-07-10 Compositions en aérosol pour détachage

Country Status (5)

Country Link
EP (1) EP0890670B1 (fr)
AT (1) ATE241030T1 (fr)
DE (1) DE69814748T2 (fr)
ES (1) ES2202750T3 (fr)
GB (1) GB9714707D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005011722A1 (de) * 2005-03-15 2006-09-21 Clariant Produkte (Deutschland) Gmbh Verfahren zur chemischen Reinigung von Textilmaterial

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270711A1 (fr) * 2001-06-28 2003-01-02 Givaudan SA Compositions de nettoyage pour tissu
EP1491620A1 (fr) * 2003-06-27 2004-12-29 S.C. Johnson & Son, Inc. Compositions en aérosol pour détachage de tissus
DE102005011719A1 (de) 2005-03-15 2006-09-28 Clariant Produkte (Deutschland) Gmbh Wasch- und Reinigungsmittel enthaltend Acetale als organische Lösemittel
DE102009027206A1 (de) 2009-06-25 2010-12-30 Chemische Fabrik Kreussler & Co. Gmbh Verwendung von Dietherverbindungen bei der chemischen Reinigung von Textil-, Leder- oder Pelzwaren

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL302725A (fr) * 1963-01-14
US4460489A (en) * 1983-02-14 1984-07-17 American Home Products Corporation Aerosol rubbing compound
US4711739A (en) * 1986-12-18 1987-12-08 S. C. Johnson & Son, Inc. Enzyme prespotter composition stabilized with water insoluble polyester or polyether polyol
JPH0823040B2 (ja) * 1988-11-01 1996-03-06 株式会社竹原 汚垢除去洗浄剤
AU610460B1 (en) * 1990-09-14 1991-05-16 R & C Assets Pty Limited Prewash cleaner compositions
US5269958A (en) * 1993-01-13 1993-12-14 S. C. Johnson & Son, Inc. Self-pressurized aerosol spot dry cleaning compositions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005011722A1 (de) * 2005-03-15 2006-09-21 Clariant Produkte (Deutschland) Gmbh Verfahren zur chemischen Reinigung von Textilmaterial
DE102005011722B4 (de) * 2005-03-15 2010-04-08 Clariant Produkte (Deutschland) Gmbh Verfahren zur chemischen Reinigung von Textilmaterial

Also Published As

Publication number Publication date
EP0890670A3 (fr) 2000-10-11
ATE241030T1 (de) 2003-06-15
DE69814748D1 (de) 2003-06-26
DE69814748T2 (de) 2004-03-11
EP0890670A2 (fr) 1999-01-13
GB9714707D0 (en) 1997-09-17
ES2202750T3 (es) 2004-04-01

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