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
  • C11D1/66—Non-ionic compounds
  • C11D1/662—Carbohydrates or derivatives
• • 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
  • C11D1/83—Mixtures of non-ionic with anionic 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
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/221—Mono, di- or trisaccharides or derivatives thereof
• • 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
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
  • C11D1/143—Sulfonic acid esters
• • 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
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
  • C11D1/146—Sulfuric acid esters
• • 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
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/29—Sulfates of polyoxyalkylene 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • 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

• the invention relates to aqueous high sudsing liquid detergent compositions containing specified amounts and types of surfactants especially useful in the washing of tableware, kitchenware and other hard surfaces.
• compositions of this invention provide more complete drainage of rinse water from surfaces such as glass, ceramics and metal, thereby reducing spotting and filming, particularly in a dishwashing procedure that involves drain drying without towel drying and polishing.
• the performance of a detergent composition for cleaning glasses, dishes, and other articles with a normally shiny surface is evaluated by the consumer in terms of shine and the absence of filming, streaking, and spotting.
• the liquid dishwashing detergent compositions presently on the market are designed to remove the soils from glasses, dishes, and other tableware and kitchen utensils.
• the detergent solution and redeposited soil residues are normally removed from the washed articles by rinsing and optionally by towel drying the articles when they are still wet. If not rinsed and towel dried, these residues can dry upon the surfaces of the washed articles, leaving films, streaks, or spots.
• U.S. Patent 3,963,649, Spadini et al discloses liquid detergent compositions containing a nonionic surfactant and a water-soluble gel-forming gelatin. These compositions are said to minimize filming, streaking and spotting of tableware and kitchen utensils.
• the essential nonionic surfactant may be a tertiary amine or phosphine oxide, an amide or a condensation product of ethylene oxide and an organic hydrophobic compound.
• U.S. Patent 3,983,079, Spadini et al discloses dishwashing detergent compositions said to have good rinse water draining characteristics.
• the compositions contain a water-soluble quaternary ammonium compound, a nonionic surfactant containing both ethylene oxide and propylene oxide and ' a sultaine or betaine zwitterionic surfactant.
• Belgium Patent 845,184 discloses liquid and granular dishwashing detergent compositions containing one or more specified classes of surfactants to ensure rapid drainage and provide a shiny surface.
• compositions and methods which can be employed during dishwashing operations to improve the final dry appearance of washed and dried kitchen utensils and articles. If such compositions and methods are intended to be useful for conventional dishwashing soil removal operations, there Is a continuing need for a compatible combination of materials which will simultaneously provide the surfactancy, sudsing, and mildness attributes of an acceptable dishwashing detergent composition as well as the anti-spotting and anti-filming benefits described above.
• the present invention comprises a liquid detergent composition containing by weight:
• dishware, glassware, and other tableware and kitchenware are washed in water solutions of the detergent composition, generally at a weight concentration of about 0.05% to about 0.4% of the composition in water at a temperature of about 80°F (26.7°C) to about 120°F (48.9°C).
• the tableware and kitchenware are then rinsed, drained, and allowed to dry in a rack or other means of separation.
• liquid detergent compositions of the present invention contain three essential components:
• compositions of this invention contain from about 5% to about 70% by weight of an anionic surfactant or mixtures thereof.
• Preferred compositions contain from about 10% to about 60% of anionic surfactant by weight.
• anionic detergents can be broadly described as the water-soluble salts, particularly the alkali metal, alkaline earth metal, ammonium and amine salts, of organic sulfuric reaction products having in their molecular structure an alkyl radical containing from about 8 to about 22 carbon atoms and a radical selected from the group consisting of sulfonic acid and sulfuric acid ester radicals. Included in the term alkyl is the alkyl portion of acyl radicals.
• anionic synthetic detergents which can form the surfactant component of the compositions of the present invention are the sodium, ammonium, potassium, lithium, or magnesium alkyl sulfates, especially those obtained by sulfating the higher alcohols (C 8 -C 18 carbon atoms) sodium or magnesium alkyl benzene or alkyl toluene sulfonates, in which the alkyl group contains from about 9 to about 15 carbon atoms, the alkyl radical being either a straight or branched aliphatic chain; sodium or magnesium paraffin sulfonates and olefin sulfonates in which the alkyl or alkenyl group contains from about 10 to about 20 carbon atoms; sodium Cl0-20 alkyl glyceryl ether sulfonates, especially those ethers of alcohols derived from tallow and coconut oil; sodium coconut oil fatty acid monoglyceride' sulfates and sulfonates; sodium, ammonium or magnesium alky
• alkyl sulfate salts which can be employed in the instant detergent compositions include sodium lauryl alkyl sulfate, sodium stearyl alkyl sulfate, sodium paimityl alkyl sulfate, sodium decyl sulfate, sodium myristyl alkyl sulfate, potassium lauryl alkyl sulfate, potassium stearyl alkyl sulfate, potassium decyl sulfate, potassium palmityl alkyl sulfate, potassiulm myristyl alkyl sulfate, sodium dodecyl sulfate, magnesium dodecyl sulfate, potassium tallow alkyl suffate, sodium tallow alkyl sulfate, sodium coconut alkyl sulfate, potassium coconut alkyl sulfate, magnesium C 12-15 alkyl sulfate and mixtures of these surfactants.
• Suitable alkylbenzene or alkyltoluene sulfonates include the alkali metal (lithium, sodium, potassium), alkaline earth (calcium, magnesium) ammonium and alkanolamine salts of straight or branched chain alkylbenzene or alkyltoluene sulfonic acids.
• Alkylbenzene sulfonic acids useful as precursors for these surfactants include decyl benzene sulfonic acid, undecyl benzene sulfonic acid, dodecyl benzene sulfonic acid, tridecyl benzene sulfonic acid, tetrapropylene benzene sulfonic acid and mixtures thereof.
• Preferred sulfonic acids as precursors of the alkyl-benzene sulfonates useful for compositions herein are those in which the alkyl chain is linear and averages about 11 to 13 carbon atoms in length. Examples of commercially available alkyl benzene sulfonic acids useful in the present invention include Conoco SA 515 and SA 597 marketed by the Continental Oil Company and Calsoft LAS 99 marketed by the Pilot Chemical Company.
• Particularly preferred anionic surfactants useful herein are olefin sulfonates containing from about 10 to about 20 carbon atoms. Particularly preferred olefin sulfonates contain low levels of 2-hydroxy sulfonates. Sodium, potassium, ammonium alkanolamine, and magnesium olefin sulfonates are preferred, especially in mixtures containing some magnesium.
• alkyl ether sulfates of the present invention are sodium coconut alkyl triethylene glycol ether sulfate, magnesium C 12-15 alkyl triethylene glycol ether sulfate, and sodium tallow alkyl hexaethylene glycol ether sulfate.
• Preferred alkyl ether sulfates are those comprising a mixture of individual compounds, said mixture having an average alkyl chain length of from about 12 to 16 carbon atoms and an average degree of ethoxylation of from about I to 12 moles of ethylene oxide.
• anionic surfactants useful herein are the compounds which contain two anionic functional groups. These are referred to as dianionic surfactants.
• Suitable dianionic surfactants are the disulfonates, disulfates, or mixtures thereof which may be represented by the following formula: R(SO 3 ) 2 M 2 ,R 4 ) 2 M 2 ,R 3 ) (SO 4 )M 2 where R is an acyclic aliphatic hydrocarbyl group having 15 to 20 carbon atoms and M is a water-solubilizing cation, for example, the C 15 to C20 disodium 1,2-alkyldisulfates, C 15 to C 20 dipotassium-1,2-alkyldisulfonates or disulfates, di-sodium 1,9-hexadecyl disulfates, C 15 to C 20 disodium 1,2-alkyldisulfonates, disodium 1,9-stearyldisulfates and 6,1.0-octade
• the ethoxylated nonionic surfactants of the present Invention are the condensation product of alcohols, alkyl phenols and other specified hydrophobic molecules with ethylene oxide.
• the compositions of the present invention contain from about 1 ⁇ 4% to about 20%, more preferably from about 1 ⁇ 2% to about 15%, and most preferably from about 3/4% to about 10%, of drainage promoting ethoxylated aliphatic alcohols of the formula R(OC 2 H 4 ) n OH wherein R is an aliphatic hydrocarbyl radical containing from about 16 to about 30 carbon atoms, wherein n is from about 16 to about 100.
• ethoxylated nonionic surfactants at a level of from about 1 ⁇ 4% to about 20% can provide the drainage promoting characteristics of ethoxylated alcohols, but are less desirable for reasons of biodegradability and effect on sudsing or cleaning performance.
• ethoxylated nonionic surfactants are:
• an aliphatic alcohol containing from about 16 to 22 carbon atoms is ethoxylated to an average degree of from about 18 to about 50 moles of ethylene oxide per mole of alcohol.
• the alkylpolysaccharides are those having a hydrophobic group containing- from about 8 to about 20 carbon atoms, preferably from about 10 to about 16 carbon atoms, most preferably from 12 to 14 carbon atoms, and a polysaccharide hydrophilic group containing from about 1.5 to about 10. preferably from abcut 1.5 to about 4, most preferably from 1.6 to 2.7 saccharide units (e.g. , galactoside, glucoside, fructoside, glucosyl, fructosyl and/or galactosyl units). Mixtures of saccharide moieties may be used in the alkyl polysaccharide surfactants.
• the number x indicates the number of saccharide units in a particular alkylpolysaccharide surfactant.
• x can only assume inte- grat values.
• the physical sample can be characterized by the average value of x and this average value can assume non-integral values.
• the values of x are to be understood to be average values.
• the hydrophobic group (R) can be attached at the 2-, 3-, or 4-positions rather than at the 1- position, (thus giving e.g.
• glucosyl or galactosyl as opposed to a glucoside or galactoside).
• attachment through the 1-position i.e., glucosides, galactosides, fructosides, etc.
• additional saccharide units are predominately attached to the previous saccharide unit's 2-position. Attachment through the 3-, 4-, and 6- positions can also occur.
• polyalkoxide chain joining the hydrophobic moiety (R) and the polysaccharide-chain there can be a polyalkoxide chain joining the hydrophobic moiety (R) and the polysaccharide-chain.
• the preferred alkoxide moiety is ethoxide.
• Typical hydrophobic groups include alkyl groups, either saturated or unsaturated, branched or unbranched containing from about 8 to about 20, preferably from about 10 to about 16 carbon atoms.
• the alkyl group is a straight chain saturated alkyl group.
• the alkyl group can contain up to 3 hydroxy groups and/or the polyalkoxide chain can contain up to about 30, preferably less than 10, most preferably 0, alkoxide moieties.
• Suitable alkyl polysaccharides are decyl, dodecyl, tetradecyl, hexadecyl, and octadecyl, di-, tri-, tetra-, penta-, and hexaglucosides, galactosides, lactosides, fructosides, fructosyls, lactosyls, glucosyls and/or galactosyls and mixtures thereof.
• the alkylmonosaccharides are relatively less soluble in water than the higher alkylpolysaccharides. When used in admixture with alkylpolysaccharides, the alkylmonosaccharides are solubilized to some extent.
• the use of alkylmonosaccharides in admixture with alkylpolysaccharides is a preferred mode of carrying out the invention. Suitable mixtures include coconut alkyl, di-, tri-, tetra-, and pentaglucosides and tallow alkyl tetra- penta-, and hexaglucosides.
• the preferred alkyl polysaccharides are alkyl polyglucosides having the formula R 2 O(C n H 2n O) t (Z) x wherein Z is derived from glucose R 2 is a hydrophobic group selected from. the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which said alkyl groups contain from about 10 to about 18, preferably from 12 to 14 carbon atoms; n is 2 or 3, preferably 2, t is from 0 to about 10, preferably 0; and x is from about 1.5 to about 8, preferably from about 1.5 to about 11, most preferably from 1.6 to 2.7.
• a long chain alcohol R 2 OH
• glucose in the presence of an acid catalyst to form the desired glucoside
• the short chain alkylglucoside content of the final alkylpolyglucoside material should be less than 50%, preferably less than 10%, more preferably less than 5%, most preferably 0% of the alkylpolyglucoside.
• the amount of unreacted alcohol (the free fatty alcohol content) in the desired alkylpolysaccharide surfactant is preferably less than about 2%, more preferably less than about 0.5% by weight of the total of the alkyl polysaccharide plus unreacted alcohol.
• the amount of alkylmonosaccharide is about 20% to about 70%, preferably 25% to 60%, most preferably 30% to 50% by weight of the total of the alkylpolysaccharide. For some uses it is desirable to have the alkylmonosaccharide content less than about 10%.
• alkylpolysaccharide surfactant is intended to represent both the preferred glucose and galactose derived surfactants and the less preferred alkylpolysaccharide surfactants.
• alkylpolyglucoside is used to include alkylpolyglycosides because the stereo chemistry of the saccharide moiety is changed during the preparation reaction.
• the amount of alkylpolysaccharide surfactant is from about 1 ⁇ 4% to about 20%, preferably from about 1% to about 70%, most preferably from about 2% to about 10%.
• compositions of this invention can contain from 0% to about 10%, preferably from about 1% to about 8%, of suds stabilizing nonionic surfactant or mixtures thereof having a different chemical structure and function than the essential drainage promoting nonionic surfactant and a different chemical structure than the alkylpolysaccharide surfactant.
• Suds stabilizing nonionic surfactants operable in the instant compositions are two basic types -- amides and the amine oxide semipolar nonionics.
• the amide type of nonionic surface active agent include the ammonia, mono- and diisopropanol, and mono- and diethanol amides of fatty acids having an acyl moiety of from about 8 to about 18 carbon atoms and represented by the general formula R 1 -CO-N(H) m-1 (R 2 OH) 3-m wherein R is a saturated or unsaturated, aliphatic hydrocarbon radical having from 7 to 21, preferably from 11 to 17 carbon atoms; R 2 represents a methylene or ethylene group; and m is 1, 2, or 3, preferably 1 or 2.
• Specific examples of said amides are mono-ethanol coconut fatty acid amide and diethanol dodecyl fatty acid amide.
• acyl moieties may be derived from naturally occurring glycerides, e.g., coconut oil, palm oil, soybean oil and tallow, but can be derived synthetically, e.g., by the oxidation of petroleum, or hydrogenation of carbon monoxide by the Fischer-Tropsch process.
• the monoethanol amides and diethanolamides of C 12-14 fatty acids are preferred.
• Amine oxide semi-polar nonionic surface active agents comprise compounds and mixtures of compounds having the formula: wherein R is an alkyl, 2-hydroxyalkyl, 3-hydroxyalkyl, or 3-alkoxy-2-hydroxypropyl radical in which the alkyl and-alkoxy, respectively, contain from about 8 to about 18 carbon atoms, R 7 . and R 3 are methyl, ethyl, propyl, isopropyl, 2-hydroxyethyl, 2-hydroxypropyl, or 3-hydroxypropyl and n is from 0 to about 10. Particularly preferred are amine oxides of the formula: wherein R is a C 10-14 alkyl and R and R 3 are methyl or ethyl.
• compositions of the invention are those which will provide the user of the product with an indication of cleaning potential In a dishwashing solution. Soils encountered in dishwashing act as suds depressants and the presence or absence of suds from the surface of a dishwashing solution is a convenient guide to product usage.
• Mixtures of anionic surfactants and suds stabilizing nonionic surfactants are utilized in the compositions of the invention because of their high sudsing characteristics, their suds stability in the presence of food soils and their ability to indicate accurately an adequate level of product usage in the presence of soil. Additionally and most importantly, compositions containing the other two essential surfactants of the invention but not the suds stabilizing nonionic surfactants as defined herein, do not provide an optimum draining promoting effect.
• the ratio of anionic surfactants to total nonionic surfactants in the composition will be in a molar ratio of from about 11:1 to about 1:1, and more preferably from about 8:1 to about 2:1.
• the suds stabilizing nonionic surfactants are generally preferred, but the essential relatively highly ethoxylated drainage promoting nonionic surfactants of the invention can contribute to sudsing performance and are included in the calculation of ratios of anionic to nonionic surfactant.
• compositions of the invention may contain optional surfactants such as ampholytic, zwitterionic and cationic surfactants.
• Ampholytic surfactants can be broadly described as derivatives of aliphatic amines which contain a long chain of about 8 to 18 carbon atoms and an anionic water-solubilizing group, e.g., carboxy, sulfo or sulfate. Examples of compounds falling within this definition are sodium-3-dodecylamino propane sulfonate, and dodecyl dimethylammonium hexanoate.
• Zwitterionic surface active agents operable in the Instant composition are broadly described as internally-neutralized derivatives of aliphatic quaternary ammonium and phosphonium and tertiary sulfonium compounds in which the aliphatic radical can be straight chain or branched, and wherein one of the aliphatic substituents contains from about 8 to 18 carbon atoms and one contains an anionic water solubilizing group, e.g., carboxy, sulfo, sulfato, phosphate, or phosphono.
• Cationic surfactants such as quaternary ammonium compounds can find optional use in the practice of the invention to the extent they are compatible with the other surfactants in the particular composition.
• compositions of this invention contain from about. 20% to about 88%, preferably from about 40% to about 70%, water.
• compositions of this invention can contain up to about 10%, by weight of detergency builders either of the organic or inorganic type.
• detergency builders either of the organic or inorganic type.
• water-soluble inorganic builders which can be used, alone or in admixture with themselves and organic alkaline sequestrant builder salts, are alkali metal carbonates, phosphates, polyphosphates, and silicates.
• specific examples of such salts are sodium tripolyphosphate, sodium carbonate, potassium carbonate, sodium pyrophosphate, potassium pyrophosphate, potassium tripolyphosphate, and sodium hexametaphosphate.
• alkali metal polycarboxylates e.g., water-soluble citrates such as sodium and potassium citrate, sodium and potassium tartratc, sodium and potassium ethylenediaminetetraacetate, sodium and potassium N-(2-hydroxyethyl)-ethylenediamine triacetates, sodium and potassium nitrilotriacetates (NTA) and sodium and potassium N-(2-hydroxyethyl)-nitrilodiacetates.
• Other organic detergency builders such as water-soluble phosphonates can find use in the compositions of the invention. In general, however, detergency builders have limited value in dishwashing detergent compositions and use at levels above about 10% can restrict formulation flexibility in liquid compositions because of solubility and phase stability considerations.
• Alcohols such as ethyl alcohol, and hydrotropes, such as sodium and potassium toluene sulfonate, sodium and potassium xylene sulfonate, trisodium sulfosuccinate and related compounds (as disclosed in U.S. Patent 3,915,903, incorporated herein by reference) and urea, can be utilized in the interests of achieving a desired product phase stability and viscosity.
• Ethyl alcohol at a level of from about 3% to about 15% and potassium or sodium toluene, xylene or cumene sulfonate at a level of from about 1% to about 6% are particularly useful in the compositions of the invention.
• the detergent compositions of this invention can contain, if desired, any of the usual adjuvants, diluents and additives, for example, perfumes, enzymes, dyes, antitarnishing agents, antimicrobial agents, and the like, without detracting from the advantageous properties of the compositions.
• adjuvants for example, perfumes, enzymes, dyes, antitarnishing agents, antimicrobial agents, and the like.
• Alkalinity sources and pH buffering agents such as monoethanolamine, triethanolamine and alkali metal hydroxides can also be utilized.
• liquid detergent compositions were prepared and compared to a typical premium commercial product control.
• compositions formulated with olefin sulfonates are preferred over those compositions formulated with alkyl benzene sulfonates. Furthermore, from a spotting/filming standpoint, it is clear that both the alkylpolysaccharide and the drainage promoting nonionic surfactant are required and that approximately equal amounts of both surfactants are preferred,
• compositions A-E are substituted for the tallow alcohol polyethoxylate. (18) in Compositions A-E:

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Cited By (33)

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• 1983
  • 1983-09-26 EP EP83201373A patent/EP0105556A1/de not_active Withdrawn

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