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
  • C11D3/16—Organic compounds
  • C11D3/37—Polymers
  • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3707—Polyethers, e.g. polyalkyleneoxides
• • 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
  • C11D1/835—Mixtures of non-ionic with cationic 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
  • C11D1/38—Cationic compounds
  • C11D1/62—Quaternary ammonium 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
  • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

• This invention relates to heavy-duty, stable liquid detergent compositions containing polyethylene glycol and -a surfactant mixture consisting essentially of selected nonionic, polysaccharide and cationic surfactants.
• the compositions herein exhibit surprisingly effective detergency as well as fabric softening and static control, even in the total absence of detergency builder materials.
• the compositions are also relatively insensitive to water hardness conditions, performing well in both hard and soft water conditions.
• the polyethylene glycol provides important soil, especially particulate soil, removal benefits in the present compositions.
• alkylpolysaccharide surfactant is a highly effective hydrotroping agent which allows for the formulation of single phase liquids in which the polyethylene glycol can peptize and aid in the removal 6f soils, especially particulate soils.
• the present invention relates to stable liquid detergent compositions comprising:
• compositions of the present invention comprise, by weight, from about 5% to about 50%, preferably from about 10% to about 40%, and most preferably from about 15% to about 30%, by weight of a'mixture of particularly defined nonionic, alkylpolysaccharide and cationic surfactants in the ratios stated herein.
• Preferred compositions contain at least about 15% of the non- ioniclalkylpolysaccharide/cationic surfactant mixture and at least about 1.5% of the cationic component in order to assure the presence of a sufficient amount of both the cationic surfactant and the mixture to provide the desired cleaning and fabric conditioning benefits.
• compositions of the present invention contain the nonionic, alkylpolysaccharide and cationic surfactants, defined hereinafter, . within ratios of nonionic and alkylpolysaccharide to cationic surfactant of from about 2:1 to about 12:1, preferably from about 3:1 to about 9:1 for cleaning; and most preferably from about 4:1 to about 9:1, in order to achieve the best soil removal performance.
• compositions of the present invention are formulated so as to have a pH of at least about 6 in the laundry solution, at conventional usage concentrations, in order to optimize their overall cleaning performance, to aid in their manufacturing and processing, and to minimize the possibility of washing machine corrosion.
• Alkalinity sources such as potassium hydroxide, potassium carbonate, potassium bicarbonate, sodium hydroxide, sodium carbonate and sodium bicarbonate, can be included in the compositions for this purpose.
• compositions haing a pH of at least about 8 in the laundry solution provide better removal of greasy/oily and body soils.
• Such compositions also preferably have the ability to maintain a pH in the laundry solution of from about 8 to 11 throughout the washing operation (reserve alkalinity), which can be obtained by incorporating compounds which buffer at pH's of from about 8 to 11, such as monoethanolamine, diethanolamine or triethanolamine.
• the compositions herein preferably are formulated to provide a pH in the laundry solution of from about 6.5 to about 7.5.
• compositions of the present invention are also essentially free of oily hydrocarbon materials and solvents, such as mineral oil, paraffin oil and kerosene, since these materials, which are themselves oily by nature, load the washing liquor with excessive oily material, thereby diminishing the cleaning effectiveness of the compositions.
• oily hydrocarbon materials and solvents such as mineral oil, paraffin oil and kerosene
• the alkylpolysaccharides are those having a hydrophobic group containing from about 6 to about 30 carbon atoms, preferably from about 10 to about 16 carbon atoms and a polysaccharide, e.g., a polyglycoside, hydrophilic group containing from about 1 to about 10, preferably from about 11 to about 3, most preferably from about 1.6 to about 2.7 saccharide units. Any reducing saccharide containing 5 or 6 carbon atoms can be used, e.g.
• glucose, galactose and galactosyl moieties can substitute for the glucosyl moieties.
• the hydrophobic group is attached at the 2, 3, 4 etc. positions thus giving a glucose or galactose as opposed to a glucoside or galactoside.
• the intersaccharide bonds can be, e.g.,. between the one position of the additional saccharide units and the 2-, 3-, 4-, and/or 6 positions on the preceding saccharide units.
• a polyalkoxide chain joining the hydrophobic moiety and the polysaccharide moiety.
• the preferred alkoxide is ethylene oxide.
• Typical hydrophobic groups include alkyl groups, either saturated or unsaturated, branched or unbranched containing from about 8 to about 18, 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 10, preferably less than 5, most preferably 0, alkoxide moieties.
• Suitable alkyl polysaccharides are octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, and: octadecyl, di-, tri-, tetra-, penta-, and hexaglucosides, galactosides, lactosides, glucoses, fructosides, fructoses, and/or galactoses.
• Suitable mixtures include coconut alkyl, di-, tri-, tetra-, and pentaglucosides and tallow alkyl tetra-, penta-, and hexagiucosides.
• the preferred alkylpolyglycosides have the formula wherein R 2 is 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 about 12 to about 14 carbon atoms; n is 2 or 3, preferably 2; t is from 0 to about 10, preferably 0; and x is from 1 to about 10, preferably from about 1 to about 3, most preferably from about 1.6 to about 2.7.
• the glycosyl is preferably derived from glucose.
• the alcohol or alkylpolyethoxy alcohol is formed first and then reacted with glucose, or a source of glucose, to form the glucoside (attachment at the I-position).
• the additional glycosyl units are attached between their 1-position and the preceding glycosyl units 2-, 3-, 4- and/or 6- position, preferably predominately the 2-position.
• the content of alkylmonoglycoside is low, preferably less than about 60%, more preferably less than about 50%.
• Nonionic surfactants useful herein have an HLB (hydrophilic-lipophilic balance, as defined in Nonionic Surfactants by M. J. Schick, Marcel Dekker, Inc., 1966, pages 607-613, incorporated herein by reference) of from about 5 to about 14, and are well known in the detergency art. They are included in the compositions of the present invention together with the, e.g., alkylpolyglycoside surfactants defined hereinbefore. They may be used singly or in combination with one or more of the preferred alcohol ethoxylate nonionic surfactants, described below, to form nonionic surfactant mixtures useful in combination with the alkylpolyglycosides. Examples of such surfactants are listed in U.S.
• Nonlimiting examples of suitable nonionic surfactants which can be used in the present invention are as follows:
• nonionic surfactants because of their superior biodegradaility have the formula R(OC 2 H 4 ) n OH, wherein R is a primary alkyl chain containing an average of from about 10 to about 18, preferably from about 10 to about 16, carbon atoms, and n is an average of from about 2 to about 9, preferably from about 2 to about 7.
• These nonionic surfactants have an HLB (hydrophilic-lipophilic balance) of from about 5 to about 1'4, preferably from about 6 to about 13.
• Preferred nonionic surfactants for use in the present invention include the condensation product of coconut alcohol with 5 moles of ethylene oxide; the condensation product of coconut alcohol with 6 moles of ethylene oxide; the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide; the condensation product of C 12-15 alcohol with 9 moles of ethylene oxide; the condensation product of C 14-15 alcohol with 2.25 moles of ethylene oxide; the condensation product of C 14-15 alcohol with 7 moles of ethylene oxide; the condensation product of C 9-11 alcohol with 8 moles of ethylene oxide, which is stripped so as to remove unethoxylated and lower ethoxylate fractions; the condensation product of C 12-13 alcohol with 6.5 moles of ethylene oxide, and this same alcohol ethoxylate- which is stripped so as to remove unethoxylated and lower ethoxylate fractions.
• a preferred class of such surfactants utilize alcohols which contain about 20% 2-methyl branched isomers, and are commercially available, under the tradename Neodol, from Shell Chemical Company.
• the condensation product of tallow alcohol with 9 moles of ethylene oxide is also a preferred nonionic surfactant for use herein.
• Particularly preferred nonionic surfactants for use in the compositions of the present invention include the condensation product of coconut alcohol with 5 moles of ethylene oxide, the condensation product of C 12-13 alcohol with 6.5 moles of ethylene oxide, the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide, the condensation product of C14-15 alcohol with 7 moles of ethylene oxide, and mixtures thereof.
• compositions of the present invention are substantially free of fatty acid polyglycol ether di-ester compounds, such as polyethylene glycol-600-dioleate or polyethylene glycol-800- distearate.
• fatty acid polyglycol ether di-ester compounds such as polyethylene glycol-600-dioleate or polyethylene glycol-800- distearate.
• Such additives can be detrimental to the particulate soil removal and fabric conditioning benefits provided by the present invention.
• the cationic surfactants used in the compositions of the present invention are of the di-long chain quaternary ammonium type, having two chains which contain an average of from about 12 to about 22, preferably from about 16 to about 22, more preferably from about 16 to about 18, carbon atoms.
• the remaining groups, if any, attached to the quaternary nitrogen atom are preferably C 1 to C 4 alkyl or hydroxyalkyl groups.
• the long chains be alkyl groups, these chains can contain hydroxy groups or can contain heteroatoms or other linkages, such as double or triple carbon-carbon bonds, and ester, amide, or ether linkages, as long as each chain falls within the above carbon atom ranges.
• Preferred cationic surfactants are those having the formula wherein the R 1 and R groups contain an average of from about 16 to about 22 carbon atoms, preferably as alkyl groups, and most preferably contain an average of from about 16 to about 18 carbon atoms, R 3 and R 4 are C 1 . to C 4 alkyl or hydroxyalkyl groups, and X is any compatible anion, particularly one selected from the group consisting of halide (e.g., chloride), hydroxide, methylsulfate, or acetate.
• halide e.g., chloride
• cationic surfactants are also useful in the present invention.
• These cationic surfactants can also be mixed with other types of c 3 tionic surfactants, such as sulfonium, phosphonium, and mono- or tri-long chain quaternary ammonium materials, as long as the amount of required cationic surfactant falls within the nonionic:cationic ratios.
• Examples of cationic surfactants which can be used together with those required herein are described in U.S. Pat. 4,259,217, Murphy, U.S. Pat. 4,222,905, Cockrell, U.S. Pat. 4,260,529, Letton, and U.S. Pat. 4,228,042, Letton, all incorporated herein by reference.
• Preferred cationic surfactants include ditaltowalkyldimethyl (or diethyl or dihydroxyethyl) ammonium chloride, ditallowalkyldimethylammonium methyl sulfate, dihexadecylalkyl (C 16 ) dimethyl (or diethyl, or dihydroxyethyl) ammonium chloride, dioctodecyl- alkyl (C 18 )-dimethylammonium chloride, dieicosylalkyl-(C 20 ) dimethylammonium chloride, methyl (I) tallowalkyl amido ethyl (2) tallowalkyl imidazolinium methyl sulfate (commercially available as Varisoft 475 from Ashland Chemical Company), or mixtures of those surfactants.
• Particularly preferred cationic surfactants are ditallowalkyldimethylammonium methyl sulfate, methyl (1) tallowalkyl amido ethyl (2) tallowalkyl imidazolinium methyl sulfate, and mixtures of those surfactants, with ditallowalkyldimethylammonium chloride being especially preferred.
• compositions of the present invention can be formulated so as to be substantially free of ethoxylated cationic surfactants which contain more than an average of about 10, and preferably free of those which contain more than an average of about 7, moles of ethylene oxide per mole of surfactant. It is to be noted that polyethoxylated cationic surfactants having relatively low levels of ethoxylation, i.e., those with less than 10, and particularly less than 7, ethylene oxide groups exhibit better biodegradability characteristics.
• compositions of the present invention also contain from about 0.1% to about 10%, preferably from about 0.5% to about 5%, and more preferably from about 0.8% to about 3%, by weight of a. polyethylene glycol having an average molecular weight of from about 2000 to about 15,000.
• the molecular weight is preferably from about 3000 to about 10,000, more preferably from about 4000 to about 8000, for optimum soil removal benefits in the present compositions.
• Polyethylene glycols which are homopolymers of ethylene oxide having the general formula HO(C 2 H 4 O) n H, are well known in the art and are available from a variety of commercial sources. For example, CARBOWAX having a molecular weight of about 6000, is a preferred material made by the Union Carbide Company. Polyethylene glycols useful herein are also commercially available from Dow Chemical Company and Jefferson Chemical Corporation.
• compositions herein containing more than about 2% by weight of polyethylene glycol should contain a suitable hydrotrope to aid solubilization.
• a preferred hydrotrope is butyl glycoside, and it should represent from about 5% to about 10% by weight of the polysaccharide surfactant.
• the detergent compositions additionally contain from about 1% to about 25%, preferably from about 2% to about 16%, and most preferably from about 2% to about 10% of a fatty amide surfactant, such as ammonia amides (e.g., coconut ammonia amides), diethanol-amides, and ethoxylated amides.
• a fatty amide surfactant such as ammonia amides (e.g., coconut ammonia amides), diethanol-amides, and ethoxylated amides.
• the weight ratio of the cationic/nonionic mixture to the amide component in the composition is in the range of from about 5:1 to about 50:1, preferably from about 8:1 to about 25:1.
• the use of.amides in such compositions is described in greater detail in U.S. Pat.
• amide components can also be added in small amounts, i.e., from about 2% to about 5%, to act as suds modifiers. Specifically, it is believed that they tend to boost the sudsing in an active system which exhibits relatively low sudsing, and depress the sudsing in an active system which exhibits relatively high sudsing.
• compositions of the present invention can also contain additional ingredients generally found in laundry detergent compositions, at their conventional art-established levels, as long as these ingredients are compatible with the nonionic and cationic components required herein.
• the compositions can contain up to about 15%, preferably up to about 5%, and most preferably from about 0.001% to about 2%, of a suds suppressor component.
• Typical suds suppressors useful in the compositions of the present invention include, but are not limited to, silicone-type suds suppressing additives which are described in U.S. Pat. 3,933,672, issued January 20, 1976, Bartolotta et al, incorporated herein by reference and the self-emulsifying silicone suds suppressors, described in U.S.
• Microcrystalline waxes having a melting point in the range from 35°C-115°C and a saponification value of less than 100 represent additional examples of a preferred suds regulating component for use in the subject compositions, and are described in detail in U.S. Pat. 4,056,481, Tate, issued November 1, 1977, incorporated herein by reference.
• Alkyl phosphate esters represent an additional preferred suds suppressant for use herein. These preferred phosphate esters are predominantly monostearyl phosphate which, in addition thereto, can contain di- and tristearyl phosphates and monooleyl phosphates, which can contain di- and trioleyl phosphates.
• adjunct components which can be included in the compositions of the present invention, in their conventional art-established levels for use (i.e., from about 0% to abut 40%, preferably from about 0% to about 20%, by weight), include semi-polar nonionic (such as trialkyl amine oxides), zwitterionic and ampholytic detergency cosurfactants; detergency builders; bleaching agents; bleach activators; soil release agents; soil suspending agents; corrosion inhibitors; dyes; fillers; optical brighteners; germicides; pH adjusting agents; alkalinity sources; hydrotropes; enzymes; enzyme-stabilizing agents; perfumes; solvents; carriers; suds modifiers; opacifiers; and the like.
• semi-polar nonionic such as trialkyl amine oxides
• zwitterionic and ampholytic detergency cosurfactants include zwitterionic and ampholytic detergency cosurfactants; detergency builders; bleaching agents; bleach activators; soil release agents; soil suspend
• compositions of the present invention can contain less than about 15% phosphate materials.
• Preferred compositions contain less than 7% phosphate, and can even be substantially, or totally free of such phosphate materials, without excessively decreasing the performance of the compositions.
• the compositions of the present invention preferably contain less than 10%, and are preferably substantially free of, 'silicate materials.
• Preferred compositions of the present invention are also substantially free of carboxymethylcellulose.
• compositions of the present invention can contain very small amounts of anionic materials, such as hydrotropes (e.g., alkali metal toluene sulfonates), it is preferred that particular anionic materials be contained in amounts sufficiently small such that not more- than about 10%, preferably not more than about 1%, of the cationic surfactant, contained in the laundry solution, is complexed by the anionic material. Such a complexing of the anionic material with the cationic surfactant, decreases the overall cleaning and fabric conditioning performance of the composition. Suitable anionic materials can be selected based on their strength of complexation with the cationic material included in the composition (as indicated by their dissociation constant).
• an anionic material when it has a dissociation constant of at least about 1 x 10 (such as sodium toluene sulfonate), it can be contained in an amount up to about 40%, by weight, of the cationic surfactant; and where the anionic material has a dissociation constant of at least about 1 x 10 , but less than about 1 x 10 -3 , it can be contained in an amount up to about 15%, by weight, of the cationic surfactant.
• Preferred compositions are substantially or completely free of such anionic materials.
• cosurfactants and detergency builders which can be used in the compositions of the present invention are found in U.S. Pat. 3,717,630, Booth, issued February 20, T973, and U.S. Pat. 4,259,217, Murphy, issued March 31, 1981, both of which are incorporated herein by reference.
• these components, particularly the anionic surfactants should be checked with the particular nonionic/cationic surfactant system chosen, and used in an amount, so as to be certain that they will be compatible with the nonionic/cationic surfactant system.
• a preferred brightener for use in the present compositions at a level of from about 0.01% to about 3%, preferably from about 0.05% to about 1.5%, more preferably from about 0.1% to about 0.5%, is an anionic brightener of the formula wherein each A is hydrogen, methyl, ethyl, isopropyl, 2-hydroxyethyl, 2-hydroxypropyl, or propanamido, or taken together are morpholino or anilino; and each B is hydrogen or -SO 3 M, wherein M is a compatible cation and the total number of -SO 3 M groups in the molecule is from 3 to 6 with no more than 2 -S0 3 M groups per anilino group.
• Preferred brighteners contain from 3 to 5, and especially 4, -SO 3 M groups. While M can be any suitable cation, such as potassium, ammonium, or substituted ammonium (e.g., mono-, di-, or triethanolammonium), it preferably is sodium.
• M can be any suitable cation, such as potassium, ammonium, or substituted ammonium (e.g., mono-, di-, or triethanolammonium), it preferably is sodium.
• Preferred brighteners are those in which A in the above formula is 2-hydroxyethyl or 2-hydroxypropyl, or taken together form a morpholino group with the nitrogen atom.
• Examples of brighteners of the above class are tetrasodium 4,4'-bis ⁇ 4-[bis(2-hydroxyethyl)amino]-6- ⁇ p-sulfoanilino)-1,3,5-triazin-2-yl ⁇ amino ⁇ -2,2'-stilbene disulfonate, commercially available as Tinopal DCS (powder) from Ciba-Geigy, and as Phorwhite BBU, (powder and liquid) from Mobay; and the corresponding material in which the 2-hydroxyethyl groups are replaced with 2-hydroxypropyl groups, commercially available as Phorwhite BRU from Mobay.
• compositions of the present invention can be produced in a variety of forms, including liquid, solid, granular, paste, powder or substrate compositions.
• the compositions of the present invention are formulated as liquids and contain up to about 20% of a lower alkyl (C 1 to C 4 ) alcohol, particularly ethanol. Liquid compositions containing lower levels of such alcohols (i.e., about 7 to 12%) tend to exhibit less phase separation than compositions containing higher alcohol levels. '
• compositions of the present invention are used in the laundering process by forming an aqueous solution containing from about 0.01% (100 parts per million) to about 0.3% (3,000 parts per million), preferably from about 0.02% to about 0.2%, and most preferably from about 0.03% to about 0.15%, of the nonionic/cationic detergent mixture, and agitating the soiled fabrics in that solution.
• the fabrics are then rinsed and dried.
• the compositions of the present invention yield exceptionally good particulate soil removal, and also provide fabric softening, static control, color fidelity, and dye transfer inhibition to the laundered fabrics, without requiring the use of any of the other conventionally-used fabric softening and/or static control laundry additives.
• Heavy-duty liquid detergents of the present invention are as follows.
• glycoside units are derived from glucose. 2
• the alcohol and monoethoxylated alcohol have been removed. 3
• Polyethylene glycol of molecular weight 6000 4 Tetrasodium 4,4'-bis((4-[bis(2-hydroxyethyl)amino]-6-(p-sulfo- anilino)-1,3,5-triazin-2-yl ⁇ amino ⁇ -2,2'-stilbene disulfonate.
• compositions of the present invention are obtained when the cationic surfactant in the above compositions is replaced, in whole or in part, by ditallowalkyldimethylammonium methyl sulfate, ditallowalkyldimethylammonium iodide, dihexadecylalkyldimethylammonium chloride, dihexadecylalkyldihydroxylethylammonium methyl sulfate, dioctadecylalkyldimethylammonium chloride, dieicosylalkyl methyl ethyl ammonium chloride, dieicosylalkyl dimethylammonium bromide, methyl (1) tallowalkyl amido ethyl (2) tallowalkyl imidazolinium methyl sulfate, or mixtures of these surfactants.
• compositions of the present, invention are also obtained where the nonionic surfactant in the above compositions is replaced, in whole or in part, by the condensation product of C 14-15 alcohol with 2.25 moles of ethylene oxide; the condensation product of C 14-15 alcohol with 7 moles of ethylene oxide; the condensation product of C 12-15 alcohol with 9 moles of ethylene oxide; the condensation product of C12-13 alcohol with 6.5 moles of ethylene oxide, which is stripped so as to remove lower ethoxylate and nonethoxylated fractions; the condensation product of coconut alcohol with 5 moles of ethylene oxide; the condensation product of coconut alcohol with 6 moles of ethylene oxide; the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide; the condensation product of tallow alcohol with 9 moles of ethylene oxide; a 1:1 by weight mixture of the condensation product of C 12-15 alcohol with 7 moles of ethylene oxide and the condensation product of C 14-15 alcohol with 7 moles of ethylene oxide; and other mixtures of those surfactants.
• compositions herein are obtained when the molecular weight of the polyethylene glycol in the above compositions is about 4000, 8000 or 12,000.
• compositions can also contain a suds suppressor such as trimethyl-, diethyl-, dipropyl-, dibutyl-, methylethyl-, or phenylmethyl polysiloxane, or mixtures thereof; a petrolatum or oxidized petrolatum wax; a Fischer-Tropsch or oxidized Fischer-Tropsch wax; ozokerite; ceresin; montan wax; beeswax: candelilla; or carnauba wax.
• a suds suppressor such as trimethyl-, diethyl-, dipropyl-, dibutyl-, methylethyl-, or phenylmethyl polysiloxane, or mixtures thereof; a petrolatum or oxidized petrolatum wax; a Fischer-Tropsch or oxidized Fischer-Tropsch wax; ozokerite; ceresin; montan wax; beeswax: candelilla; or carnauba wax.
• the following heavy-duty liquid detergents were prepared.
• the glycoside units are derived from glucose. 2
• the alcohol and monoethoxylated alcohol have been removed. 3
• the fabrics were graded tactilely for softness by a panel of three judges making paired comparisons of the control and test fabrics.
• the graders assigned an integer grade of from 0 to 4, in which "0" means the fabrics are equal in softness, “1” means I think this fabric is softer, “2” means I know this fabric is a little softer, “3” means this fabric is a lot softer, and “4" means this fabric is a whole lot softer.
• the data obtained were analyzed statistically to determine the mean softness grades in panel score units (PSU) and a statistical estimate of the least significant difference (LSD) at the 95% confidence level.
• PSU panel score units
• LSD least significant difference

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Cited By (18)

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• 1983
  • 1983-10-17 EP EP83306287A patent/EP0106692A1/fr not_active Withdrawn

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