WO2017001304A1 - Liquid manual dishwashing detergent - Google Patents
Liquid manual dishwashing detergent Download PDFInfo
- Publication number
- WO2017001304A1 WO2017001304A1 PCT/EP2016/064743 EP2016064743W WO2017001304A1 WO 2017001304 A1 WO2017001304 A1 WO 2017001304A1 EP 2016064743 W EP2016064743 W EP 2016064743W WO 2017001304 A1 WO2017001304 A1 WO 2017001304A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- detergent composition
- liquid
- dishwashing detergent
- weight
- present
- Prior art date
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- 239000003599 detergent Substances 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 title claims abstract description 49
- 238000004851 dishwashing Methods 0.000 title claims abstract description 43
- 239000000203 mixture Substances 0.000 claims abstract description 74
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 18
- 150000002191 fatty alcohols Chemical class 0.000 claims description 9
- 239000004094 surface-active agent Substances 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 8
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims description 7
- 239000002280 amphoteric surfactant Substances 0.000 claims description 7
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 6
- -1 germicides Substances 0.000 claims description 6
- 229960003237 betaine Drugs 0.000 claims description 4
- 239000003125 aqueous solvent Substances 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 102000004190 Enzymes Human genes 0.000 claims description 2
- 108090000790 Enzymes Proteins 0.000 claims description 2
- 239000013543 active substance Substances 0.000 claims description 2
- 230000000845 anti-microbial effect Effects 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- MRUAUOIMASANKQ-UHFFFAOYSA-N cocamidopropyl betaine Chemical group CCCCCCCCCCCC(=O)NCCC[N+](C)(C)CC([O-])=O MRUAUOIMASANKQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000975 dye Substances 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 239000000417 fungicide Substances 0.000 claims description 2
- 230000002070 germicidal effect Effects 0.000 claims description 2
- 239000003002 pH adjusting agent Substances 0.000 claims description 2
- 239000002304 perfume Substances 0.000 claims description 2
- 239000003755 preservative agent Substances 0.000 claims description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 229940077388 benzenesulfonate Drugs 0.000 description 7
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 5
- 239000002736 nonionic surfactant Substances 0.000 description 5
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- 239000002562 thickening agent Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- HLZKNKRTKFSKGZ-UHFFFAOYSA-N 1-Tetradecanol Natural products CCCCCCCCCCCCCCO HLZKNKRTKFSKGZ-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Chemical group CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004435 Oxo alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 150000003973 alkyl amines Chemical class 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 229940045714 alkyl sulfonate alkylating agent Drugs 0.000 description 1
- 150000008052 alkyl sulfonates Chemical class 0.000 description 1
- 125000001204 arachidyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000000656 azaniumyl group Chemical group [H][N+]([H])([H])[*] 0.000 description 1
- 229960000541 cetyl alcohol Drugs 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000000373 fatty alcohol group Chemical group 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229930182470 glycoside Natural products 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- 230000003165 hydrotropic effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229940043348 myristyl alcohol Drugs 0.000 description 1
- GOQYKNQRPGWPLP-UHFFFAOYSA-N n-heptadecyl alcohol Natural products CCCCCCCCCCCCCCCCCO GOQYKNQRPGWPLP-UHFFFAOYSA-N 0.000 description 1
- BXWNKGSJHAJOGX-UHFFFAOYSA-N n-hexadecyl alcohol Natural products CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 1
- 238000006384 oligomerization reaction Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229940012831 stearyl alcohol Drugs 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
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
- C11D1/88—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
- C11D1/02—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
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/90—Betaines
-
- 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 present invention relates to liquid manual dishwashing detergent compositions, which have improved viscous properties. Furthermore, the present invention relates to usage of such liquid manual dishwashing detergents for dish cleaning purposes and a process for cleaning dishes using liquid manual dishwashing detergent compositions according to the present invention.
- cleaning compositions such as hand dishwashing compositions are those that they should have a certain consistency or viscosity.
- the desired viscosity expected by the consumer, should not be too thin.
- the consumer desires viscous formulations allowing a controlled handling (providing good pourability and ease of dissolution in water). Also, the consumer associates viscous cleaning compositions with good performance and quality as well as with high levels of active ingredients.
- high viscous cleaning compositions areobtained by incorporating gums, polymeric thickeners and/or high levels of salts and/or active matter of surfactants into the cleaning compositions.
- This approach has the drawback that it negatively affects the formula costs while providing no benefit (apart from thickening).
- this approach is not sustainable, since cleaning formulations with high levels of polymeric thickeners and/or surfactants are under environmental aspects undesirable.
- aqueous cleaning composition in particular a hard-surface cleaning composition, which is highly viscous (jelly like) by means of a self- thickening system and which delivers improved cleaning performance (degreasing performance), lather performance (rapid generation of foam, stability of the foam) and solubility in water.
- a liquid dishwashing detergent composition comprising:
- At least one amphoteric surfactant preferably betaine, in an amount of 3 % to 5.5 % by weight of said liquid dishwashing detergent composition.
- the present invention also relates to the use of a liquid dishwashing detergent composition according to the present invention for the manual cleaning of dishes and kitchenware.
- the present invention relates to a process for cleaning dishes or kitchenware comprising the use of a liquid detergent composition according to the present invention.
- Liquid as used in the context of the present invention, comprises all kinds of flowable compositions, including gels and paste-like compositions. Furthermore, non-Newtonian liquids, which possess a yield point, are considered to be encompassed by said term.
- At least one comprises, without limitation, 1 , 2, 3, 4, 5, 6, 7, 8, 9, etc.
- the liquid dishwashing detergent composition according to the present invention comprises at least one sulfonated linear alkyi benzene surfactant in an amount of 8 % to 12 % by weight of said liquid dishwashing detergent composition.
- this at least one sulfonated linear alkyi benzene surfactant is present in an amount of 9 % to 1 1 % by weight of said liquid dishwashing detergent composition.
- this at least one sulfonated linear alkyi benzene surfactant is a linear alkyi benzene sulfonate.
- Linear alkyi benzene sulfonate surfactants are typically compounds of the formula: wherein Ri is linear alkyi group having from 8 to 15 carbon atoms and M is H, alkali metal or alkyi amine.
- the alkali metal can be selected from the group consisting of sodium, potassium and lithium, and the alkyl amine can be selected from the group consisting of monoethanolamine, triethanolamine, and diethanolamine.
- the linear alkyl benzene sulfonate is preferably a linear alkyl benzene sulfonate having an alkyl chain length of Cs-Os.
- the linear alkyl benzene sulfonate is a C9-C13 alkyl benzene sulfonate.
- the liquid dishwashing detergent composition according to the present invention further comprises at least one fatty alcohol ether sulfate in an amount of 3 % to 4.5 % by weight, preferably 3 % to 4 % by weight, of said liquid dishwashing detergent composition.
- the at least one fatty alcohol ether sulfate surfactant may correspond to the following formula: wherein R is a linear unsubstituted fatty alcohol group.
- R is selected from the group consisting of decyl, dodecyl, tetradecyl, hexadecyl, octadecyl, eicosyl groups and mixtures thereof.
- R is selected from Ci2-Cisfatty alcohols, for example, those derived from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol, or C10-C20 oxo alcohols.
- AO is an ethylene oxide (EO) or a propylene oxide (PO) group, preferably an ethylene oxide group
- n is an integer from 1 to 50, preferably from 1 to 20 and especially preferably from 2 to 10.
- n is an integer selected from 2, 3, 4, 5, 6, 7 or 8.
- X is a monovalent cation or the n-th part of a cation having a valence of n, wherein alkaline metal ions are especially preferred, among which Na + or K + in particular Na + are most preferred.
- Other cations X + may be selected from NhV, 1 ⁇ 2 Zn 2 Y/ 2 Mg 2+ ,/ 2 Ca 2+ ,/ 2 Mn 2+ , and mixtures thereof.
- the detergent compositions according to the present invention preferably comprise at least one fatty alcohol ether sulfate having the following formula:
- liquid dishwashing detergent composition further comprises at least one amphoteric surfactant in an amount of 3 % to 5.5 % by weight of said liquid dishwashing detergent composition.
- this at least one amphoteric surfactant is present in an amount of 3.25 % to 4.5 % by weight of said liquid dishwashing detergent composition.
- this at least one amphoteric surfactant is a betaine.
- Betaines which may be used in the liquid dishwashing compositions according to the present invention may be selected from the group consisting of alkylamidopropyl betaines, preferably linear C8-C16 alkylamidopropyl betaines, and particularly cocoamidopropyl betaine, in which ⁇ 3- (Dodecanoylamino)propyl](dimethyl)ammonio ⁇ acetate is comprised as a main ingredient. Betaines of this type are commercially available under the brand name Tego® Betaine by Evonik Industries.
- liquid dishwashing detergent compositions described herein may, in various embodiments, comprise additional anionic surfactants that may be selected from those typically used in dishwashing applications and known to those skilled in the art. These include, without limitation, fatty acid soaps and alkyl sulfonates. In various embodiments, the presently described dishwashing compositions do however not contain any additional anionic detergents besides those defined above.
- the liquid dishwashing detergent compositions according to the present invention may further comprise at least one nonionic surfactant.
- nonionic surfactants known to those skilled in the art may be employed in detergent compositions according to the present invention.
- Suitable nonionic surfactants are, for example, alkyl glycosides of the general formula RO(G) x , wherein R is a primary straight-chain or methyl-branched, in particular 2-methyl-branched aliphatic radical having 8 to 22, preferably 12 to 18 carbon atoms, and G denotes a glycose unit comprising 5 or 6 carbon atoms, preferably glucose.
- the degree of oligomerization x which indicates the distribution of mono- and oligoglycosides, is any number between 1 and 10, preferably, x is 1.2 to 1.4
- nonionic surfactants that may either be used individually or in combination with other nonionic surfactants are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably having 1 to 4 carbon atoms in the alkyl chain.
- compositions according to the invention at a temperature of 20° C are in the range from 1 .000 to 10.000 mPas. preferably in the range from 2,500 to 10.000 mPas and more preferably in the range from 3.000 to 7.000 mPas (shear rate 10 s "1 ) or in the range from 500 to 5.000 Pas (shear rate 30 s "1 ).
- the compositions according to the present invention preferably also show higher viscosities than previously known formulas at elevated temperatures of 30° C or 35° C.
- the liquid manual dishwashing composition according to the present invention may contain one or more further ingredients typically used in liquid manual dishwashing composition. Accordingly, in various embodiments, the liquid manual dishwashing composition additionally contains at least one substance selected from the group consisting of, without limitation, enzymes, non-aqueous solvents, pH adjusting agents, free perfumes, dyes, antimicrobial active substances, germicides, fungicides, antioxidants, preservatives, bittering agents and mixtures thereof.
- the liquid manual dishwashing detergent composition is manufactured using usual and known methods and processes.
- the constituents of the dishwashing composition can be simply mixed in agitator vessels, water, non-aqueous solvent, and active detergent compounds usefully being prepared first. After cooling under stirring the further constituents are then added in portions.
- compositions according to the invention were produced, as well as a comparative example C.
- the following table shows all three compositions, with the amounts given in wt.-% of actives in the formula:
- compositions according to the invention exhibit better/higher viscosity at high temperature (35 °C) when compared to the comparative example C. Additionally, the inventive compositions show comparable or even improved cleaning performance over C.
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Abstract
The present invention relates to liquid manual dishwashing detergent composition, and more particularly, to such detergents, which feature improved viscous properties. Furthermore, the present invention relates to usage of such liquid manual dishwashing detergents for dish cleaning purposes and a process for cleaning dishes using liquid manual dishwashing detergent compositions according to the present invention.
Description
"Liquid manual dishwashing detergent"
The present invention relates to liquid manual dishwashing detergent compositions, which have improved viscous properties. Furthermore, the present invention relates to usage of such liquid manual dishwashing detergents for dish cleaning purposes and a process for cleaning dishes using liquid manual dishwashing detergent compositions according to the present invention.
An important feature of cleaning compositions such as hand dishwashing compositions is that they should have a certain consistency or viscosity. The desired viscosity, expected by the consumer, should not be too thin. The consumer desires viscous formulations allowing a controlled handling (providing good pourability and ease of dissolution in water). Also, the consumer associates viscous cleaning compositions with good performance and quality as well as with high levels of active ingredients.
Usually, high viscous cleaning compositions areobtained by incorporating gums, polymeric thickeners and/or high levels of salts and/or active matter of surfactants into the cleaning compositions. This approach has the drawback that it negatively affects the formula costs while providing no benefit (apart from thickening). In addition, this approach is not sustainable, since cleaning formulations with high levels of polymeric thickeners and/or surfactants are under environmental aspects undesirable.
It is known in the art to formulate so-called self-thickened cleaning compositions where thickening is achieved without the use of polymeric thickeners. For instance, international patent publication WO 95/03302 discloses aqueous viscous compositions comprising an amine oxide or an amine, a secondary or primary monobranched alkyl sulfate or sulfonate, a hydrotrope and an organic acid and EP 0 839 898 discloses aqueous viscous compositions comprising linear alcohols and/or linear alkoxylated alcohols, a hydrotropic solvent and anionic surfactants.
However, there is still a need to provide self-thickened aqueous compositions with better performance in several respects including cleaning performance, in particular grease cleaning performance, and viscosity properties.
It is thus the object of the present invention to provide an aqueous cleaning composition, in particular a hard-surface cleaning composition, which is highly viscous (jelly like) by means of a self- thickening system and which delivers improved cleaning performance (degreasing performance), lather performance (rapid generation of foam, stability of the foam) and solubility in water.
The present invention solves this problem by providing, in a first aspect, a liquid dishwashing detergent composition, comprising:
a) at least one linear alkyi benzene sulfonate in an amount of 8 % to 12 % by weight of said liquid dishwashing detergent composition,
b) at least one fatty alcohol ether sulfate in an amount of 3 % to 4.5 % by weight of said liquid dishwashing detergent composition, and
c) at least one amphoteric surfactant, preferably betaine, in an amount of 3 % to 5.5 % by weight of said liquid dishwashing detergent composition.
In another aspect, the present invention also relates to the use of a liquid dishwashing detergent composition according to the present invention for the manual cleaning of dishes and kitchenware.
In yet another aspect, the present invention relates to a process for cleaning dishes or kitchenware comprising the use of a liquid detergent composition according to the present invention.
"Liquid", as used in the context of the present invention, comprises all kinds of flowable compositions, including gels and paste-like compositions. Furthermore, non-Newtonian liquids, which possess a yield point, are considered to be encompassed by said term.
"At least one", as used herein, comprises, without limitation, 1 , 2, 3, 4, 5, 6, 7, 8, 9, etc.
All indications of quantity, unless defined otherwise, are based on the total weight of the liquid dishwashing detergent composition according to the present invention.
The liquid dishwashing detergent composition according to the present invention comprises at least one sulfonated linear alkyi benzene surfactant in an amount of 8 % to 12 % by weight of said liquid dishwashing detergent composition. In a preferred embodiment, this at least one sulfonated linear alkyi benzene surfactant is present in an amount of 9 % to 1 1 % by weight of said liquid dishwashing detergent composition. Preferably, this at least one sulfonated linear alkyi benzene surfactant is a linear alkyi benzene sulfonate.
Linear alkyi benzene sulfonate surfactants are typically compounds of the formula:
wherein Ri is linear alkyi group having from 8 to 15 carbon atoms and M is H, alkali metal or alkyi amine. The alkali metal can be selected from the group consisting of sodium, potassium and lithium,
and the alkyl amine can be selected from the group consisting of monoethanolamine, triethanolamine, and diethanolamine.
The linear alkyl benzene sulfonate is preferably a linear alkyl benzene sulfonate having an alkyl chain length of Cs-Os. In preferred embodiments, the linear alkyl benzene sulfonate is a C9-C13 alkyl benzene sulfonate.
The liquid dishwashing detergent composition according to the present invention further comprises at least one fatty alcohol ether sulfate in an amount of 3 % to 4.5 % by weight, preferably 3 % to 4 % by weight, of said liquid dishwashing detergent composition.
In the detergent compositions according to the present invention, the at least one fatty alcohol ether sulfate surfactant may correspond to the following formula:
wherein R is a linear unsubstituted fatty alcohol group. Preferably, R is selected from the group consisting of decyl, dodecyl, tetradecyl, hexadecyl, octadecyl, eicosyl groups and mixtures thereof. In particular embodiments, R is selected from Ci2-Cisfatty alcohols, for example, those derived from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol, or C10-C20 oxo alcohols.
AO is an ethylene oxide (EO) or a propylene oxide (PO) group, preferably an ethylene oxide group, n is an integer from 1 to 50, preferably from 1 to 20 and especially preferably from 2 to 10. In particular, n is an integer selected from 2, 3, 4, 5, 6, 7 or 8. X is a monovalent cation or the n-th part of a cation having a valence of n, wherein alkaline metal ions are especially preferred, among which Na+ or K+ in particular Na+ are most preferred. Other cations X+ may be selected from NhV, ½ Zn2Y/2 Mg2+,/2 Ca2+,/2 Mn2+, and mixtures thereof.
Accordingly, in certain embodiments, the detergent compositions according to the present invention preferably comprise at least one fatty alcohol ether sulfate having the following formula:
wherein k is an integer from 9 to 19, and n is an integer selected from 2, 3, 4, 5, 6, 7 or 8. Thus, preferred examples of these compounds are Na, K and/ or Mg salts of C10-16 fatty alcohol ether sulfates with 2 to 7 EO (k = 9-15, n = 2 - 7). More particularly, Na, K and/ or Mg salts of C12 fatty alcohol ether sulfates with 3 EO (k = 12, n = 3) are most preferred.
The liquid dishwashing detergent composition further comprises at least one amphoteric surfactant in an amount of 3 % to 5.5 % by weight of said liquid dishwashing detergent composition. In a preferred embodiment of the present invention, this at least one amphoteric surfactant is present in an amount of 3.25 % to 4.5 % by weight of said liquid dishwashing detergent composition. Preferably, this at least one amphoteric surfactant is a betaine.
Betaines, which may be used in the liquid dishwashing compositions according to the present invention may be selected from the group consisting of alkylamidopropyl betaines, preferably linear C8-C16 alkylamidopropyl betaines, and particularly cocoamidopropyl betaine, in which {3- (Dodecanoylamino)propyl](dimethyl)ammonio}acetate is comprised as a main ingredient. Betaines of this type are commercially available under the brand name Tego® Betaine by Evonik Industries.
The liquid dishwashing detergent compositions described herein may, in various embodiments, comprise additional anionic surfactants that may be selected from those typically used in dishwashing applications and known to those skilled in the art. These include, without limitation, fatty acid soaps and alkyl sulfonates. In various embodiments, the presently described dishwashing compositions do however not contain any additional anionic detergents besides those defined above.
The liquid dishwashing detergent compositions according to the present invention may further comprise at least one nonionic surfactant. All kinds of nonionic surfactants known to those skilled in the art may be employed in detergent compositions according to the present invention. Suitable nonionic surfactants are, for example, alkyl glycosides of the general formula RO(G) x, wherein R is a primary straight-chain or methyl-branched, in particular 2-methyl-branched aliphatic radical having 8 to 22, preferably 12 to 18 carbon atoms, and G denotes a glycose unit comprising 5 or 6 carbon atoms, preferably glucose. The degree of oligomerization x, which indicates the distribution of mono- and oligoglycosides, is any number between 1 and 10, preferably, x is 1.2 to 1.4
Another class of preferred nonionic surfactants that may either be used individually or in combination with other nonionic surfactants are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably having 1 to 4 carbon atoms in the alkyl chain.
Favorable viscosities for the compositions according to the invention at a temperature of 20° C (spindle 1 , speed 10 rpm) are in the range from 1 .000 to 10.000 mPas. preferably in the range from 2,500 to 10.000 mPas and more preferably in the range from 3.000 to 7.000 mPas (shear rate 10 s"1) or in the range from 500 to 5.000 Pas (shear rate 30 s"1). The compositions according to the present invention preferably also show higher viscosities than previously known formulas at elevated temperatures of 30° C or 35° C.
in addition to the aforementioned substances, the liquid manual dishwashing composition according to the present invention may contain one or more further ingredients typically used in liquid manual dishwashing composition. Accordingly, in various embodiments, the liquid manual dishwashing composition additionally contains at least one substance selected from the group consisting of, without limitation, enzymes, non-aqueous solvents, pH adjusting agents, free perfumes, dyes, antimicrobial active substances, germicides, fungicides, antioxidants, preservatives, bittering agents and mixtures thereof.
The liquid manual dishwashing detergent composition is manufactured using usual and known methods and processes. For example, the constituents of the dishwashing composition can be simply mixed in agitator vessels, water, non-aqueous solvent, and active detergent compounds usefully being prepared first. After cooling under stirring the further constituents are then added in portions.
Of course, all embodiments disclosed herein also apply to use and a process for the use of the liquid manual dishwashing detergent composition according to the present invention.
Examples
Two compositions according to the invention, A1 and A2, were produced, as well as a comparative example C. The following table shows all three compositions, with the amounts given in wt.-% of actives in the formula:
The cleaning performance and the viscosities at different temperatures were measured for all three compositions. The results are summarized below.
Both compositions according to the invention exhibit better/higher viscosity at high temperature (35 °C) when compared to the comparative example C. Additionally, the inventive compositions show comparable or even improved cleaning performance over C.
Claims
1. Liquid dishwashing detergent composition comprising:
a) at least one sulfonated linear alkyl benzene surfactant in an amount of 8 % to 12 % by weight of said liquid dishwashing detergent composition,
b) at least one fatty alcohol ether sulfate in an amount of 3 % to 4.5 % by weight of said liquid dishwashing detergent composition, and
c) at least one amphoteric surfactant, preferably betaine, in an amount of 3 % to 5.5 % by weight of said liquid dishwashing detergent composition.
2. The liquid detergent composition according to claim 1 , wherein the at least one sulfonated linear alkyl benzene surfactant is present in an amount of 9 % to 1 1 % by weight of said liquid dishwashing detergent composition.
3. The liquid detergent composition of any one of claims 1 or 2, wherein the at least one fatty alcohol ether sulfate is present in an amount of 3 % to 4 % by weight of said liquid dishwashing detergent composition.
4. The liquid detergent composition according to any one of claims 1 to 3, wherein the at least one fatty alcohol ether sulfate is a C10-16 fatty acid ether sulfate with 3 EO.
5. The liquid detergent composition according to any one of claims 1 to 4, wherein the at least one amphoteric surfactant is present in an amount of 3.25 % to 4.5 % by weight of said liquid dishwashing detergent composition.
6. The liquid detergent composition according to any one of claims 1 to 5, wherein the amphoteric surfactant is cocoamidopropyl betaine.
7. The liquid detergent composition according to any one of claims 1 to 6, wherein the said liquid dishwashing detergent composition additionally comprises preferably at least one other substance selected from the group consisting of enzymes, non-aqueous solvents, pH adjusting agents, free perfumes, dyes, antimicrobial active substances, germicides, fungicides, antioxidants, preservatives, bittering agents and mixtures thereof.
8. Use of a liquid dishwashing detergent composition according to any one of claims 1 to 7 for the manual cleaning of dishes and kitchenware.
9. A method for cleaning dishes or kitchenware comprising the use of a liquid detergent composition according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015212246.8 | 2015-06-30 | ||
| DE102015212246 | 2015-06-30 |
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| WO2017001304A1 true WO2017001304A1 (en) | 2017-01-05 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030144218A1 (en) * | 2001-05-11 | 2003-07-31 | Colgate-Palmolive Company | Mild antibacterial liquid dish cleaning compositions having improved stability |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030144218A1 (en) * | 2001-05-11 | 2003-07-31 | Colgate-Palmolive Company | Mild antibacterial liquid dish cleaning compositions having improved stability |
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