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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/75—Amino oxides
• • 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
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0026—Low foaming or foam regulating compositions

Definitions

• This invention relates to low foaming detergent compositions having controlled sudsing capacity.
• foam stabilising agents in detergent compositions to impr prove the persistence and the stability of the foam produced by agitation of the wash liquors.
• the prior art compound which function as foam stabilising agents in detergent systems depend upon Well-known foam-stabilising functional groups such as the amide, alcolohic, and phenolic hydroxyl groups.
• foam stabilising agents are fatty alcohols, fatty acid monoalkanolamides, fatty acid dialkanolamides, p-hydroxylaurophenone and alkylene oxide adducts with a short polyglycol chain such as nonylphenol/4 E.O.
• foam stabilising agent do not produce any significant amount of foam themselves, but influence the system in such a way that it becomes less sensitive to soil, so that the foam-depressing action of soil in a wash liquor is decreased.
• R is a branched or straight-chain alkyl radical, containing from to 18 carbon atoms, and R and R are each alkyl radicals containing from 1 to 3 carbon atoms.
• these amine oxides are lauryl-, myristyl-, stearyl-dimethylamine oxides. Also mixtures of any of the foregoing compounds may be used according to the present invention.
• Suitable foam stabilising agents according to the present invention are those mentioned priviously. Especially suitable are the fatty acid alkanolamides, such as coconut fatty acid monoand di-ethanolamides, tallow fatty acid mono-ethanolamide, etc. Also mixtures of any of these foam-stabilisers may be used.
• the Weight ratio of amine oxides to foam stabilising agent is from 25:1 to 1:2. The amine oxides are not included in the term foam-stabilising agent.
• the detergent compositions according to the present invention show their controlled sudsing characteristics over a wide temperature range, viz. from 20 to C., while the water hardness does not influence the foam stability; the foam produced is of a fine texture. They also have excellent detergency characteristics, and are mild in their action towards the skin.
• the composition may include other constituents, provided its low-sudsing character is not impaired and may naturally contain all the usual constitutents desirable in a built detergent composition, such as phosphates, silicates, bleaching agents, Whitening agent, perfumes, soil-suspending agents, etc. They may be prepared in any desired physical form, such as powders, pastes, liquids and solids and are suitable for use a dish washing composition, light and heavy duty detergent compositions, hard-surface cleaners and scouring powders.
• the foaming height was compared with the foaming heights of the solutions obtained by adding to the above solution 0.15 g./l., 0.25 g./l. and 0.5 g./l. of coconut monoethanolamide (CEA).
• the foaming heights of a 1 litre aqueous solution of a mixture of 1 g. of a commercial tridecyldimethylamine oxide, known under the trade name Noxamine C50 (equivalent to 0.52 g. tridecyldimethyl amine oxide as dry substance) and 2 g. sodium tripolyphosphate with and without 0.15 g. coconut monoethanolamide were determined in water of DH and 15 DH. The following results were obtained:
• EXAMPLE 3 Three aqueous solutions were prepared each containing 2 g./l. sodium tripolyphosphate (STPP) and 1 g./l. of a different commercial amine oxide, viz. 1aury1, myristyland cetyldimethylamine oxide, as supplied under the trade names Ammonyx LO, MO and CO respectively. The foaming height of each of these combinations was determined with 0 and 1 g. soil per litre. These values were compared with those obtained with the same systems to which 0.15 g. coconut monoethanolamide was adde. The following results were obtained:
• Example 3 was repeated using different foam stabilisers, viz. lauric monoethanolamide '(LEA), tallow monoethanolamide (TEA) and coconut diethanolamide 4 (CDEA). The following results were obtained in the absence of soil:
• Ammonyx L0 LEA g./l. TEA, g./l. CDEA, g./l.
• Ammonyx MO LEA g./l. TEA, g.ll. CDEA, g./l.
• Ammonyx C0 LEA g./l. TEA, g./l. CDEA, g./l.
• EXAMPLE 5 The foaming height of an aqueous solution containing 2.83 g./1. Ammonyx CO and 2 g./l. STPP was compared with that of the same solution to which 0.15 g./l. nonylphenol condensed with 4 moles ethylene oxide was added. The following results were obtained:
• EXAMPLE 6 In a Wyandotte dynamic foam meter (as described in Soap and Chemical Specialties, April 1961, pages 55-57, 104) the foam capacity of aqueous solutions containing 2.83 g./l. of Ammonyx CO equivalent to 1 g./l. of cetyl dimethyl amine oxide as dry substance or 3.21 g./l. of Ammonyx SO (equivalent to 1 g./l. stearyl dimethyl amine oxide as dry substance) and 2 g./l. STPP with and without 0.25 g./l. CEA was determined. 200 ml./ min. of solution was used (water hardness 15 DH). The warming-up time was 34 minutes. The following results were obtained:
• EXAMPLE 7 The foaming height of an aqueous solution containing 3.33 g./1. of a commercial branched tridecyldimethyl amine oxide (supplied under the code name CWA 40-29 ex Union Carbide Cy.) equivalent to 1 g./1. of tridecyldimethyl amine oxide as dry substance and 2 g./l. of STPP was compared with that of the same solution to which 0.25 g./l. of CEA was added.
• a commercial branched tridecyldimethyl amine oxide supplied under the code name CWA 40-29 ex Union Carbide Cy.
• EXAMPLE 8 The foaming height of an aqueous solution containing per litre a mixture of 1.57 g. of Ammonyx MO (equivalent to 0.5 g. myristyldimethyl amine oxide as a dry substance) and 1.6 g. of Ammonyx SO (equivalent to 0.5 g. stearyldimethyl amine oxide as dry substance) and 2 g. of STPP was compared with the foaming height of the same solution to which 0.25 or 0.5 g./l. of a mixture of coconut monoethanolamide and tallow monoethanolamide (ratio of 1:1) were added.
• CEA plus TEA g./1.
• EXAMPLE 9 The foaming height of an aqueous solution containing per litre 2.83 g. of Ammonyx CO, 2 g. of STPP and 0.25
• a low-foaming detergent composition having controlled sudsing capacity consisting essentially of an amine oxide, as the only active organic detergent component, of

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• 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)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

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Country Status (11)

Cited By (5)

Citations (5)

• 0
  • CA CA786293A patent/CA786293A/en not_active Expired
  • NL NL131045D patent/NL131045C/xx active
• 1965
  • 1965-01-22 GB GB2962/65A patent/GB1131492A/en not_active Expired
• 1966
  • 1966-01-14 CH CH47466A patent/CH475344A/de not_active IP Right Cessation
  • 1966-01-17 NL NL6600551A patent/NL6600551A/xx unknown
  • 1966-01-19 US US521550A patent/US3470102A/en not_active Expired - Lifetime
  • 1966-01-21 AT AT55866A patent/AT284305B/de not_active IP Right Cessation
  • 1966-01-21 FR FR46865A patent/FR1465181A/fr not_active Expired
  • 1966-01-21 DE DE19661617206 patent/DE1617206A1/de active Pending
  • 1966-01-21 ES ES0322080A patent/ES322080A1/es not_active Expired
  • 1966-01-21 LU LU50303A patent/LU50303A1/xx unknown
  • 1966-01-21 BE BE675450D patent/BE675450A/xx unknown

Patent Citations (5)

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