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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0094—High foaming compositions
• • 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
  • C11D1/88—Ampholytes; Electroneutral 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/88—Ampholytes; Electroneutral compounds
  • C11D1/94—Mixtures with anionic, cationic or non-ionic 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
  • 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

Definitions

• Liquid dishwashing composition The present invention relates to liquid dishwashing compositions and • more particularly to such compositions which contain an anionic tenside, at least one amphoteric surface active compound and at least one foam boosting compoun .
• the most common commercial liquid dishwashing com ⁇ positions are primarily intended for hand dishwashing and are as a rule aqueous solutions containing anionic ten- sides, such as al yl sulfonates and alkyl ether sulfates, as essential component.
• anionic ten- sides such as al yl sulfonates and alkyl ether sulfates
• These dishwashing agents are entirely satisfactory with regard to cleaning effect, foam forming effect and foam stability.
• the dishwashing compositions based on this type of anionic surface active agents are not satisfactory from an environmental point of view nor with regard to mildness to skin, since they have a certain irritating and allergy causing effect.
• anionic tensides such as for example paraffin sulfonates
• anionic tensides in dishwashing compositions can be replaced by at least one amphoteric surface active compound and at least one foam boasting compound which is an amine oxide, an amido betaine or an amide to give a dishwashing composition which is mild and kind to the skin, has a good foam stability and gives a low biological load and is more efficient than a dishwashing composition based solely on anionic tensides.
• the present invention thus relates to a dishwashing composition as further defined in the appended claims.
• Dishwashing compositions according to the present invention are particularly suitable for manual washing, of glass, china, kitchen utensils etc, thanks to their mildness.
• amphoteric surface active compounds present in the dishwashing compositions of the invention can be characterized by the general formula (I) R - (A) n - [N - (CHRx J xl y - N - Q ( I )
• R is a hydrocarbon group having from 7 to 22 carbon atoms
• A is the group (C(O) )
• n is 0 or 1
• Ri is hydrogen or a lower alkyl group
• x is 2 or 3
• y is an integer of 0 to 4
• Q is the group -R 2 COOM wherein R 2 is an alkylene group having from 1 to 6 carbon atoms and M is hydrogen or an ion from the groups alkali metals, alkaline earth metals, ammonium and substituted ammonium
• B is hydrogen or a group Q as defined.
• Amphoteric compounds encompassed by the above given formula are per se known and used in cleaning compositions and shampoo compositions. They are for example described in the European patent applications 160507, 162600 and 214868. According to the European patent application 160507 a combination of two different amphoteric compounds en ⁇ compassed by the above given formula is used in mild shampoo compositions.
• R is a hydrocarbon group having from 7 to 22 carbon atoms and suitably from 11 to 22 carbon atoms.
• the hydrocarbon group R can be straight or branched, saturated or unsaturated and optionally contain substi- tuents such as hydroxyl groups.
• the group R can also contain one or several, up to about 20, ethylene oxide groups.
• the group R can also be a cycloalkyl-alkyl group, an aralkyl or aralkenyl group where the alkyl or alkenyl group contains at least 6 carbon atoms.
• R is preferably an alkyl or alkenyl group and it is particularly preferred that R is a hydrocarbon group originating from coco, tallow or oleic fatty acid.
• R- ⁇ in the given formula is hydrogen or a lower alkyl group, suitably with 1 to 6 carbon atoms and is preferably hydrogen or a methyl group, x is 2 or 3 and y is suitably 2, 3 or 4 and preferably 2 or 3.
• the group R 2 is suitably a methylene or an ethylene group, preferably a methylene group.
• M is hydrogen or an ion from the groups alkali metals, alkaline earth metals, ammonium or sub ⁇ stituted ammonium such as for example mono-, di- or tri- hydroxyethylammonium. M is preferably a sodium ion.
• Preferred compounds of the formula (I) have the formula (II) :
• Q is CH 2 -COOM or CH CH 2 COOM
• y is 1, 2 or 3 and wherein M, R, x, A, n and B have the above given meanings.
• Mixtures of the amphoteric compounds with different values for y are especially preferred.
• R in these compounds suitably originates from tallow, oleic or coco fatty acid.
• amphoteric compound of type 1 acts primarily as a tenside and suds former and the amphoteric compound of type 2 acts primarily as a detoxifying tenside.
• Suitable weight ratios between compounds of type 1 and type 2 is within the range of from 1:10 to 10:1 and preferably within the range of from 1:5 to 5:1.
• amphoteric compounds of type 1 x in the above given formulae is suitably 2 and the groups B are hydrogen or groups Q.
• amphoteric compounds of type 2 x in the above given formulae is suitably 3 and all groups B are groups Q.
• amphoteric compounds containing a carbonyl group such compounds which can be characterized by the general formula (III)
• R, A, y, Q and B have the same meaning as given for compounds of formula (I), whereby, however, one group B is the group -CH CHR*0H, wherein R * is H or CH 3 are used in combination with the amphoteric compound which does not contain a carbonyl group.
• R.and for M in the group Q are as given for compounds of formula (I).
• Most suitable are compounds of formula (III) wherein y is l and Q is the group -CH 2 COOM.
• Amphoteric compounds of formulae Ilia and Illb are commercially available as mixtures and usually with a weight ratio of compounds of formula Ilia to compounds of formula Illb within the range of 1:10 to 10:1. Like the amphoteric compounds of formula I and II which contain a carbonyl group the compounds of formula III, Ilia and Illb act primarily as tensides and suds formers. Suitable weight ratios between compounds of formula III or Ilia and/or Illb and amphoteric compounds which do not contain a carbonyl group is within the range of from 1:10 to 10:1 and prefer ⁇ ably within the range of from 1:5 to 5:1.
• Amphoteric compounds of the above given formulae are commercially available and sold under the trade name Am ⁇ holak( R ) by Berol Nobel AB, Sweden.
• amphoteric compounds can partly replace anionic tensides in liquid dishwashing compositions.
• the amphoteric compounds are com ⁇ bined with an amide, an amido betaine or an amine oxide having this effect.
• Amides, amido betaines and amine oxides with this effect for dishwashing agents and other products are per se known and can generally be characterized as amides, amido betaines and amine oxides respectively con ⁇ taining at least one longer hydrophobic hydrocarbon group, ie a fatty acid residue having at least 7 carbon atoms and suitably up to 22 carbon atoms.
• suitable amides can be mentioned ammonium and ethanol amides, such as mono- and diethanol amides of fatty acids containing at least one longer hydrophobic group having at least 7 carbon atoms.
• the amides can be characterized by the general formula (IV) R - CO - N(H) p (R 1 0H) 2 _p (IV) wherein R is the longer hydrophobic hydrocarbon group, which suitably is a saturated or unsaturated, straight or branched, aliphatic hydrocarbon group with 7 to 21 carbon atoms and preferably is an alkyl or alkenyl group with from 11 to 17 carbon atoms.
• R ⁇ is a methylene or ethylene group and p is 1 or 2.
• suitable amides can be mentioned mono- and diethanol amides of natural or synthetic fatty acids having 12 to 18 carbon atoms, for example dodecyl carboxylic acid and coco fatty acid.
• amido betaines which can be used can be charac ⁇ terized by the general formula (V)
• R is the longer hydrophobic hydrocarbon group, which suitably is a saturated or unsaturated, straight or branched, aliphatic hydrocarbon group with 7 to 21 carbon atoms and preferably is an alkyl or alkenyl group with from 11 to 17 carbon atoms, n is 1 or 2 and M is preferably hydrogen or a sodium ion.
• the amine oxides which can be used can be charac ⁇ terized by the formula (VI) R(R 1 ) 2 N- ) (VI) wherein R is the longer hydrophobic hydrocarbon group, suitably a saturated or unsaturated, straight or branched aliphatic hydrocarbon group having at least 8 carbon atoms.
• R is especially a group having from 8 to 22 carbon atoms, and suitably it is an alkyl group which can be substituted by a hydroxyl group and also contain one or several, up to about 10, alkoxy groups, preferably ethylene oxide groups.
• the groups R ⁇ are, independent of each other, lower alkyl or hydroxy alkyl groups with from 1 to 4 carbon atoms.
• the amine oxides are preferred.
• the group R is preferable a coconut alkyl group.
• the weight ratio of the foam boosting compound or compounds, ie the amide, amido- betaine or amine oxide or mixture of two or more of these, to the amphoteric compound or compounds should suitably be at least l:10 and the ratio is suitably within the range of from 1:10 to 10:1 and preferably within the range from 1:5 to 5:1.
• an amphoteric compound in combination with a fatty acid amide, an amido- betaine or an amine oxide having foam boosting and foam stabilizing effect anionic tensides, which normally are water soluble salts of organic sulfonated acid or sulfated alcohols, in liquid dishwashing compositions can be re ⁇ placed to a certain extent and hereby a dishwashing com ⁇ position is obtained which is advantageous from a biologi- cal point of view and advantageous with regard to mildness at use.
• the improved mildness which is obtained is depen ⁇ dent on an efficient detoxification of anionic tensides through formation of mixed micelles of the anionic surface active compounds and the amphoteric surface active com- pounds.
• anionic tensides of the above mentioned types are also present, but in lower amounts than usual.
• the amount of anionic tenside is suitably within the range of from 90 to 20 per cent by weight, based on the total amount of amphoteric surface active compounds and anionic surface active compounds, preferably within the range 85 to 60 per cent and most preferably within the range of from 80 to 60 per cent by weight.
• the anionic tensides are, as indicated above, water soluble salts of organic sulfonated acids or sulfated alcohols, and then particularly alkyl sulfates, alkyl ether sulfates, alkyl sulfonates, alkyl aryl sulfonates, wherein the alkyl group usually contains from 8 to 22 carbon atoms.
• alkyl group usually contains from 8 to 22 carbon atoms.
• anionic tensides containing ether groups these are usually ethylene oxide groups and the compounds normally contain between 1 and 10 such groups per molecule.
• the cations of these salts are alkali metals, alkaline earth metals, ammonium or amines such as mono-, di- and tri- ethanol amine cations.
• anionic tensides can be mentioned sodium lauryl sulfonate, sodium lauryl ether sulfate with two or three ethylene oxide groups, the corresponding ammonium or ethanol amine salts, sodium or other salts of dodecyl benzene sulfonic acid and alkyl benzene sulfonic acid wherein the alkyl group con ⁇ tains an average of from 11 to 13 carbon atoms.
• the present dishwashing compositions are liquid and the main component for this is of course preferably water.
• Water used in liquid dishwashing compositions is often deionized but other types of water can also be used.
• Other liquid solvents can of course be included, such as for example lower alcohols and glycols and lower alkyl ethers of the glycols. These types of solvents are normally present, if at all present, in minor amounts. As some specific examples can be mentioned ethanol, isopropanol, ethylene glycol etc.. Solvents are sometimes included mainly for preservation.
• One advantage of the present compositions is, however, that since they contain ampho ⁇ teric compounds of the type according to formula (I) no solvent is required in order to obtain preservative effect.
• the present dishwashing compositions can be prepared in per se conventional manner by simple mixing of the components and they can of course also be used in con- ventional manner. Normal dosage is about 0.2 g/1 dish liquor of a dishwashing composition with a total dry content of from about 10 to about 45 per cent by weight.
• the dishwashing compositions can of course also contain other conventionally used additives for improvement of different properties such as thickeners, antibacterial agents, colorants, pigments, perfumes etc..
• Other ampho ⁇ teric compounds can also be present if desired, such as betaines, and also nonionic tensides such as glycosides.
• betaines such as betaines
• nonionic tensides such as glycosides.
• Dishwashing compositions were prepared from the following components (all amounts given are as 100% active substance) :
• Composition I 12 g of linear alkyl benzene sulfonate with C12 to C18 alkyl groups, 7 g of sodium lauryl ether sulfate with 3 ethylene oxide groups, 2 g of C12-C18 alkane sul ⁇ fonate, 2 g of ethanol and 77 g of water.
• This composition is a standard dishwashing composition.
• Composition II 1.68 g of sodium lauryl ether sulfate with 3 ethylene oxide groups, 10.8 g of C12-C18 alkane sul ⁇ fonate, 2.22 g of amphoteric compounds, a 1:1 mixture of amphoteric compounds sold under the trade marks Ampholak ( R ) XCO-30 and Ampholak( R >7TX, respectively, 1.11 g of alkyl dimethyl amine oxide wherein the alkyl group had 14 carbon atoms and 84.19 g of water.
• the first mentioned amphoteric compound can chemically be characterized as cocoamphocarboxyglycinate and contains a carbonyl group and comprises a mixture of compounds defined in formulae Ilia and Illb) and the other one can chemically be de ⁇ scribed as tallowampho polycarboxyglycinate, corresponds to formulae II and does not contain a carbonyl group.
• composition II The efficiency of composition II according to the invention was set in relation to this and found to be 2.4.

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Cited By (6)

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Citations (2)

• 1990
  • 1990-09-19 SE SE9002986A patent/SE9002986D0/sv unknown
• 1991
  • 1991-04-09 JP JP3509334A patent/JPH05502265A/ja active Pending
  • 1991-04-09 AU AU79032/91A patent/AU7903291A/en not_active Abandoned
  • 1991-04-09 DK DK91910074.3T patent/DK0500819T3/da active
  • 1991-04-09 EP EP91910074A patent/EP0500819B1/en not_active Expired - Lifetime
  • 1991-04-09 DE DE69117726T patent/DE69117726T2/de not_active Expired - Fee Related
  • 1991-04-09 ES ES91910074T patent/ES2084165T3/es not_active Expired - Lifetime
  • 1991-04-09 AT AT91910074T patent/ATE135038T1/de not_active IP Right Cessation
  • 1991-04-09 WO PCT/SE1991/000257 patent/WO1992005236A1/en active IP Right Grant
• 1992
  • 1992-05-13 FI FI922184A patent/FI922184A/fi not_active Application Discontinuation
  • 1992-05-18 NO NO921960A patent/NO179952C/no unknown

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