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
  • C11D1/38—Cationic compounds
  • C11D1/65—Mixtures of anionic 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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/38—Cationic compounds
  • C11D1/65—Mixtures of anionic with cationic compounds
  • C11D1/652—Mixtures of anionic compounds with carboxylic amides or alkylol amides
• • 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
  • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
  • C11D11/0094—Process for making liquid detergent compositions, e.g. slurries, pastes or gels
• • 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
  • C11D1/38—Cationic compounds
  • C11D1/40—Monoamines or polyamines; Salts 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
  • C11D1/42—Amino alcohols or amino 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
  • C11D1/38—Cationic compounds
  • C11D1/42—Amino alcohols or amino ethers
  • C11D1/44—Ethers of polyoxyalkylenes with amino alcohols; Condensation products of epoxyalkanes with amines
• • 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
  • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
  • C11D2111/10—Objects to be cleaned
  • C11D2111/14—Hard surfaces

Definitions

• the invention relates to light duty liquid detergent compositions, a method of making light duty liquid detergent composition, as well as methods for using such compositions.
• Light duty liquid detergents are typically utilized for hand dish washing of kitchen utensils, plates, dishes, flatware, pots/pans, and other soiled food preparation items.
• Light duty liquid detergents are also commonly used to clean delicate textiles by hand as well as in the cleaning of automobile exteriors and many household hard surfaces, such as floors, painted woodwork, washable wallpaper and counter tops.
• LDL compositions In general, it is desirable for LDL compositions to exhibit not only grease removal properties, but also high foaming characteristics, as consumers generally incorrectly associate the latter with the cleaning performance of the LDL. Also, as LDL compositions will usually come into contact not only with the surface to be cleaned, but also with the skin of the person who is cleaning, it is also desirable for the LDL to be mild and non-drying to human skin.
• LDL compositions typically comprise a mixture of liquid surfactants.
• Many commercially available LDL compositions include one or more anionic surfactants that function as the primary cleaning component (or base surfactant formulation) within the LDL composition.
• alkylbenzene sulfonic acid is used extensively as it is an effective degreaser, has a good foam profile (except in hard water), is pH tolerant, and is low cost.
• Amines have been commonly used in LDL compositions as a source of alkalinity.
• Many LDL compositions further include divalent ions, such as Mg and Ca, to insure adequate cleaning of greasy soils in soft water. However, the use of such ions can have an undesirable effect on the stability of the LDL and may lead to the undesirable precipitation of such ions from the LDL.
• U.S. Patent No. 4,992,212 teaches the use of an organic base, a zinc salt and a complexing agent in a LDL composition to allow for the pretreatment of aluminum utensils with little or no associated staining of such utensils.
• U.S. Patent No. 5,981 ,466 describes a detergent composition, primarily for use in fabric laundering, which comprises alkyl alkoxylated sulfates and/oY alkyl sulfates and specific primary and/or tertiary amines.
• a detergent composition primarily for use in fabric laundering, which comprises alkyl alkoxylated sulfates and/oY alkyl sulfates and specific primary and/or tertiary amines.
• this formulation when as a LDL because of antagonist effects caused by the ether sulfates.
• U.S. Patent No. 5,990,065 also describes a hand dishwashing detergent comprising low molecular weight diamines.
• this invention requires the addition of magnesium and/or calcium, which results in less stable formulations.
• U.S. Patent No. 6,069,122 also describes a hand dishwashing detergent comprising low molecular weight diamines.
• LDL composition comprising one or more fatty amine derivatives selected from the group described herein and about 5% to about 50%, by weight, of an anionic base surfactant formulation, wherein the anionic base surfactant formulation comprises an alkylbenzene sulfonate having a C 6 -C 2 2 alkyl group.
• anionic base surfactant formulation comprises an alkylbenzene sulfonate having a C 6 -C 2 2 alkyl group.
• many of the prior art LDL compositions discussed above have a pH of 9 to 11 , and sometimes higher, a range that may be irritating to human skin.
• a further need exits for a LDL composition effective for baked-on greasy and fatty soils which still maintains good foaming properties and which is in a pH range that is mild to human skin.
• the strong cleaning properties of the present LDL composition allows for the reduction or elimination of Mg/Ca ions without a detrimental effect on cleaning ability.
• the present invention relates to a light duty liquid detergent composition
• a light duty liquid detergent composition comprising
• anionic base surfactant formulation (a) from about 5% to about 50%, by weight, of an anionic base surfactant formulation, wherein the anionic base surfactant formulation comprises an alkylbenzene sulfonate having a C 6 -C- 22 alkyl group;
• R 1 N[(CH 2 ) y NR 4 R 5 ] 2 (
• R 1 is a C6-C22, linear or branched, saturated or unsaturated alkyl
• R 2 , R 3 , R 4 , R 5 , and R 6 are each either hydrogen, methyl, hydroxethyl, hydroxypropyl, or an alkyl
• R 2 and R 3 , or R 4 and R 5 form a heterocyclic ring of up to 6 members with the nitrogen; or R 2 and R 3 , or R 4 and R 5 together form the group -CH2CH2OCH2CH2-
• R 7 is a C5-C2 1 , linear or branched, saturated or unsaturated alkyl
• R 8 is hydrogen or methyl
• w, x, and y are each an integer from 2 to 6
• z is an integer from 1 to 30
• u is an integer greater than or equal to 1
• v is an integer greater than or equal to 2.
• the present invention relates to a method of making a light duty liquid detergent composition which comprises the steps of:
• R 1 is a C 6 -C 2 2, linear or branched, saturated or unsaturated alkyl; R 2 ,
• R 3 , R 4 , R 5 , and R 6 are each either hydrogen, methyl, hydroxethyl, hydroxypropyl, or an alkyl; or R 2 and R 3 , or R 4 and R 5 form a heterocyclic ring of up to 6 members with the nitrogen; or R 2 and R 3 , or R 4 and R 5 together form the group -CH 2 CH 2 OCHaCH 2 -; R 7 is a C 5 -C 2 I, linear or branched, saturated or unsaturated alkyl; R 8 is hydrogen or methyl; w, x, and y are each an integer from 2 to 6; z is an integer from 1 to 30; u is an integer greater than or equal to 1 ; and v is an integer greater than or equal to 2; to the solution of (c).
• the present invention relates to a method of removing soils from hard surfaces comprising:
• anionic base surfactant formulation comprises an alkylbenzene sulfonate having a Ce-C 22 alkyl group; and (ii) at least one fatty amine derivative selected from the group consisting of:
• R 1 N[(CH 2 ) y NR 4 R 5 ] 2 ⁇ .
• O R 7 — C— NH(CH 2 ) X NR 4 R 5 (
• R 1 is a C-6-C-22. linear or branched, saturated or unsaturated alkyl
• R 2 , R 3 , R 4 , R 5 , and R 6 are each either hydrogen, methyl, hydroxethyl, hydroxypropyi, or an alkyl
• R 2 and R 3 , or R 4 and R 5 form a heterocyclic ring of up to 6 members with the nitrogen; or R 2 and R 3 , or R 4 and R 5 together form the group -CH 2 CH 2 OCH 2 CHa-
• R 7 is a C 5 -C 21 , linear or branched, saturated or unsaturated alkyl
• R 8 is hydrogen or methyl
• w, x, and y are each an integer from 2 to 6
• z is an integer from 1 to 30
• u is an integer greater than or equal to 1
• v is an integer greater than or equal to 2;
• the present invention still further relates to a method of washing soiled dishes or other kitchen items wherein an effective amount of the LDL composition described above is absorbed onto a cloth, sponge or similar cleaning tool; the cloth, sponge or similar cleaning tool is contacted with the surface of each soiled item; and each soiled item is rinsed in water.
• effective amount is meant an amount sufficient to remove enough soil from the surface of the item for the user to determine the item has been adequately cleaned, as based on the habits and practices of the user.
• the present invention additionally relates to a method of washing soiled items wherein an effective amount for cleaning of the LDL composition of the present invention is diluted in water to form a diluted solution and each of the soiled items are either immersed in the diluted solution and cleaned by contacting the surface of each of the soiled items with a cloth, sponge or similar cleaning tool; or a method by which a cleaning effective amount of the LDL composition of the present invention is diluted in water to form a diluted solution and a cloth sponge or similar cleaning tool is first immersed in the diluted solution and then the cloth sponge or similar cleaning tool is contacted with the surface of each of the soiled items.
• effective amount is meant an amount sufficient to remove enough soil from the surface of the item for the user to determine the item has been adequately cleaned, as based on the habits and practices of the user.
• the present invention utilizes an anionic base surfactant formulation comprising at least one alkylbenzene sulfonate having a C 6 -C 22 alkyl group.
• anionic surfactants for example, alfa olefin sulfonates (AOS), paraffin sulfonates (PS), secondary alkane sulfonates (SAS), fatty alcohol sulfate (FAS), sulfonated fatty acids or their esters, or mixtures thereof, may also be utilized as part of the anionic base surfactant formulation of the present invention to further enhance the cleaning or other properties of the LDL.
• AOS alfa olefin sulfonates
• PS paraffin sulfonates
• SAS secondary alkane sulfonates
• FAS fatty alcohol sulfate
• sulfonated fatty acids or their esters or mixtures thereof
• the addition of ether sulfates may have an antagonistic effect on the de
• the anionic surfactant base formulation is present in an amount equal to about 5% to about 50% and more preferably, about 7% to about 30%.
• the alkylbenzene sulfonate may be either linear or branched and can be in the form of a sodium, magnesium, isopropylamine, triethanolamine, or calcium salt.
• the alkylbenzene sulfonate is linear dodecylbenzene sulfonate in either magnesium or sodium form.
• Secondary surfactants may also be added to the LDL composition of the present invention. These secondary surfactants are not part of the base surfactant formulation and are added for a variety of other enhancing reasons including improved mildness to the skin, foam boosting, foam stabilization, and viscosity modification. For example, alkylbenzene sulfonates have a less desirable foaming profile when used with hard water and are also known to remove fat from the skin, leaving it dry with a tendency to crack. Typically, secondary surfactants would be added to the LDL in order to reduce the de-fatting effect and to provide foam boosting in hard water.
• Suitable secondary surfactants include betaines, alkanolamides, amine oxides, alkylpolyglucosides, fatty acid glucamide, and fatty alkanol amides.
• amine oxides may have an antagonistic effect on the degreasing ability of the alkylbenzene sulfonate and, preferably, the present LDL composition is substantially free of amine oxide.
• the present invention further comprises at least one fatty amine derivative selected from the group consisting of:
• R 1 is a C 6 -C 22 , linear or branched, saturated or unsaturated alkyl
• R 2 , R 3 , R 4 , R 5 , and R 6 are each either hydrogen, methyl, hydroxethyl, hydroxypropyl, or an alkyl
• R 2 and R 3 , or R 4 and R 5 form a heterocyclic ring of up to 6 members with the nitrogen; or R 2 and R 3 , or R 4 and R 5 together form the group -CH2CH2OCH2CH2-
• R 7 is a C5-C21, linear or branched, saturated or unsaturated alkyl
• R 8 is hydrogen or methyl
• w, x, and y are each an integer from 2 to 6
• z is an integer from 1 to 30
• u is an integer greater than or equal to 1
• v is an integer greater than or equal to 2.
• the fatty amine derivative(s) is or are present in the LDL composition in an amount equal to about 0.1% to about 10%, more preferably in an amount equal to about 0.1 % and about 5%, and most preferably in an amount equal to about 0.1% to about 2%.
• the amount of fatty amine derivative may be increased to counteract any antagonistic effect these surfactants may have on the ability of the alkylbenzene sulfonate to remove baked-on soil in order to achieve a cleaning performance equal to the LDL composition prior to the addition of ether sulfate or amine oxide or both.
• these ions may still be included in the LDL composition of the present invention to further enhance the cleaning properties with the added benefit that there can be a reduction in the amount of the ions utilized in the LDL composition without any corresponding loss in cleaning effectiveness when compared to currently available LDL compositions.
• these ions are added, preferably magnesium ions are utilized. In one preferred embodiment of the present invention, magnesium ions are added at levels of about 0.04% to about 0.25%.
• suitable sources of magnesium or calcium ions include salts such as chlorides, sulfates, acetates, sulfides, hydroxides or counter ions of surfactants such as ether sulfates, aikylbenzene sulfates, alkanolamides or combinations thereof.
• Hydrotroping and coupling agents may optionally be included in the composition of the present invention to increase the solubility of the surfactants contained therein.
• suitable hydrotroping and coupling agents for use with the present invention include sodium xylene sulfonate, sodium cumene sulfonate, sodium toluene sulfonate, ethanol, isopropanol, propylene glycol, polyethylene glycol or mixtures thereof.
• Buffering and neutralization agents may also be optionally added to the described composition to neutralize the aikylbenzene sulfonic acids and to adjust the formulation pH to optimize cleaning performance or to adjust the pH to a range considered milder to human skin.
• suitable buffering and neutralization agents for use in the present invention include urea, ammonia, sodium hydroxide, potassium hydroxide, citric acid, sulfuric acid, hydrochloric acid, alkanolamines, and ethanolamine. It is preferred for the pH of the present invention to be about 5 to about 12. More preferably, the pH of the present invention is about 7.5 to about 9.5.
• the present invention may optionally and preferably does contain one or more adjunct ingredients that serve to improve overall product performance and appearance.
• adjunct ingredients include dyes, preservatives, fragrances, chelating agents, solubilizers, soil release polymers, anti- irritants, dispersants, thickeners, bactericides, antifungal agents, brighteners, enzymes, abrasives, and anti-corrosive aids.
• Any conventional adjunct ingredients known in the art are suitable for use herein.
• suitable preservatives include formaldehyde, glutaraldehyde, ethanol, benzoic acid, kathon, dowicil, bronopol, and hydroxybenzoic acid.
• Alcohol ethoxylates and fatty acid ethoxylates may also be added as adjuncts in order to provide additional cleaning performance.
• the improved cleaning performance is demonstrated only when the components are added in particular sequence. More specifically, the fatty amine derivative cannot be added as part of the neutralization package (i.e., with the neutralization agent).
• at least one neutralization agent is first added to water to form a solution.
• An alkylbenzene sulfonic acid having a C 6 -C 22 alkyl group is added to the solution.
• ethoxylated ether sulfate or ethoxylated amides these components must only be added when the solution is at approximately pH 6 or greater, as the ethoxylated ether sulfate will immediately hydrolyze at lower pH values.
• Buffering agents may need to be added prior to these components in order to adjust the pH to an appropriate value.
• Optional additional components such as magnesium or calcium ions, hydrotropes, foam stabilizing agents, or buffering agents are added next. Any adjuncts being utilized, such those described above, are also added at this time. Then, one or more fatty amine derivatives are added. Finally, minor adjustments are made for viscosity and pH.
• the present invention maintains its improved cleaning abilities when utilized in a variety of consumer washing methods. These methods include, for example, the following typical consumer practices:
• a neutralizing agent e.g., sodium hydroxide
• a neutralizing agent e.g., sodium hydroxide
• Dodecylbenzene sulfonic acid was slowly added until completely in solution.
• the other ingredients shown above were added in the order listed. Adjustments to the viscosity were made by using sodium xylene sulfonate in the above formulations until the final viscosity was between 300-400 cps. The pH was checked and adjusted where required.
• Example 1 the capacity of the base formulation A to remove baked kitchen grease is very limited between ph 6-9, but increases by 20% when the formulation pH is 10 and above. No further increase is seen at higher pH values.
• the addition of 1% ethoxylated (2) tallowalkylamine in formula C in accordance with the present invention resulted in a 40% increase. Further increase in ethylene oxide content of the fatty amine derivative did not show the same boost in removal of baked on kitchen soil.
• Magnesium ion (as MgCI 2 *6H2O) 0.3 0.15 0.15 0.3 0.15 0.15 -
• a neutralizing agent e.g. sodium hydroxide
• Dodecylbenzene sulfonic acid was added until completely solublized.
• the remaining ingredients were then added in the order listed above.
• Viscosity was adjusted by using sodium xylene sulfonate until a final viscosity between 300-400 cps was achieved. The pH was checked and, if needed, was adjusted to approximately 8.5.
• Example 4 Formulation P was prepared using the same components and in the same amounts as for formulation O in example 3, except that the fatty amine derivative was added as part of the neutralization package.
• Example 5 Fatty amine derivatives were added to a commercial LDL formulation based on the following ingredients: sodium laureth sulfate, sodium dodecylbenzene sulfonate, amine oxide, sulfonated methylesters, plus other minor ingredients.
• the formula has a Magnesium ion content of about 0.36%.
• Formulations S through X all show a significantly increase in the removed of the baked on kitchen soil with the addition of the various fatty amine derivatives as described herein.

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• Oil, Petroleum & Natural Gas (AREA)
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• Detergent Compositions (AREA)

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• 2004
  • 2004-10-04 US US10/957,759 patent/US20060074004A1/en not_active Abandoned
• 2005
  • 2005-09-28 WO PCT/US2005/034989 patent/WO2006041704A1/en not_active Ceased
  • 2005-09-28 BR BRPI0516438-9A patent/BRPI0516438A/pt not_active IP Right Cessation
  • 2005-09-28 AU AU2005294597A patent/AU2005294597A1/en not_active Abandoned
  • 2005-09-28 EP EP05807473A patent/EP1814971A1/en not_active Withdrawn
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