CA1211675A - Liquid detergent composition - Google Patents
Liquid detergent compositionInfo
- Publication number
- CA1211675A CA1211675A CA000435481A CA435481A CA1211675A CA 1211675 A CA1211675 A CA 1211675A CA 000435481 A CA000435481 A CA 000435481A CA 435481 A CA435481 A CA 435481A CA 1211675 A CA1211675 A CA 1211675A
- Authority
- CA
- Canada
- Prior art keywords
- composition
- weight
- sodium
- moles
- alkalimetal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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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
- C11D1/66—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
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Aqueous, built liquid detergent compositions comprising an alkylaryl sulphonate and an alkylether sulphate as the detergent materials, and a phosphate builder show an irreversible increase in viscosity when subjected to high shearing action. The inclusion in such compositions of a certain level of a nonionic detergent surfactant according to the present invention enables the use of high shearing action, necessary to achieve the required physical stability, without an irreversible increase of the viscosity.
Aqueous, built liquid detergent compositions comprising an alkylaryl sulphonate and an alkylether sulphate as the detergent materials, and a phosphate builder show an irreversible increase in viscosity when subjected to high shearing action. The inclusion in such compositions of a certain level of a nonionic detergent surfactant according to the present invention enables the use of high shearing action, necessary to achieve the required physical stability, without an irreversible increase of the viscosity.
Description
~ 7S C 813 (R) , ~ 1 LIQUID DETERGENT COMPOSITION
The present invention relates to an aqueous, built li-quid detergent composition which is pourable, physically stable and has a satisfactory, reversible viscosity behaviour.
Aqueous, built liquid detergent compositions are well-known in the art. A vast amount of different formula-tion~ has been described in the prior art, but basically such formulations always contain one or more detergent active compounds and one or more builder sal~s in an aqueous medium, and they are either true solutions, or suspensions, emulsions and the like, depending upon the type and amount of ingredients used.
The presant invention is concerned with aqueous, built liquid detergent compositions of the suspension type, by which is to be understood that one or more of the ingre-dients of the detergent composition are suspended in the final composition.
Such types of aqueous, built liquid detergent compositi-ions have been described in the prior art. Thus, our British patent ~pecification 855 893 describes aqueous built liquid detergent compositions in the form of pour-2S able suspensions, emulsions or coacervates which com-prise as essential ingredients an alXylethersulphate, an alXylarylsulphonate, a carboxymethyl cellulose and an al-kalimetal condensed phosphate. A similar type of products is described in British pat~nt application 2 028 365, which contain an alkylethersulphate, preferably together with an alkylarylsulphonate, a builder salt such as an alkalimetal condensed phosphate, and an optical brighte-ning agent.
`3~''"''' ~ 6 75 c 813 (R) -~ 2 Aqueous, built liquid detergent compositions of the above type, which contain a mixture of an alkylethersulphate and an alkylarylsulphonate as the active detergent ma-terial, and an alkalimetal condensed phosphate as the builder material, suffer however from the drawback that when they are subjected to high shearing action, e.g.
durin~ th2ir manufacture when th~y are e.g. pumped or bottled, their VilSCOSity is irreversibly increased to a very significant degree, resulting in products with an unacceptably high viscosity. Some shearing action is how-ever required to achieve the required physical stability of the products, since too low a shearing action may re-sult in physically unstable~ products.
Consequently, if the manufacturer requires a product with an acceptable pourability and viscosity, he is compelled to use a medium or low shear action during manufacture, accepting a possible unsatisfactory physical stability.
The control of this shear action while pumping or bottling ~0 the liquid product is, moreover, difficult. Thus, in the above British patent specification 885 893 the products are prepared by homogenisation in a colloid mill, whereby they are suhjected to high s~ear action, resulting in physically stable, but too viscous products, and products prepared according to British patent application 2 ~28 365, using controlled agitation (mediwm and strong, avoiding aer~tion), result in products with an acceptable physical stability, but unsatisfactory viscosity. Storage of the latter product at temperature cycling storage conditions often results in an increased, irreversible viscosity.
It has now been found that these drawbacks can be over-come to a significant degree, if in the formulation also a certain amount of a nonionic detergent active material is included. m e presence of this material enables the use of high shearing action, after which however the vis-12116~5 c 813 (R) cosity reversibly returns to an acceptable level, whilemaintaining the physical stability achieved by the high shear action.
In its broadest aspects therefore the present invention relates to an improvement in and to aqueous, built li-quid detergent co]npositions which contain as essential ingredients an al]kylethersulphate and an alkylarylsul-phonate as the active detergent materials, and a builder sa:lt, the improvement comprising the inclusion in the composition of a certain level of a nonionic detergent active material.
Further aspects of the invention will become readily apparent from the description of the invention and its various embodimentQ as detailed below.
The active detergent material comprises as essential ingredients an alkylethersulphate and an alkylarylsul-phonate.
The alkylethersulphates are represented by the followingformula R (OCnH2n ) mS3M
in which R is a linear or branched alkyl chain having from 8 to 18 carbon atoms, n i9 2 or 3, m is a number ranging from 1 to 10 and M is an alkalimetal, alkaline earth metal, ammonium or substituted am~onium radic~l.
R is preferably a linear Cl~-C15 alkyl chain, n is prefer-ably 2, m is preferably from 2 to 5 and M is preferably sodium.
C 813 (R) 12116'7S
Typical examples of such alXylethersulphates are lauryl-ethersulphates containing from 2.5 to 3 mole9 of ethylene oxide or propylene oxide or a mixture of the two; Cll-C15 sec. alkylethersulphates containing from 3 to 12 moles of ethylene oxide and C12-C15 prim. alkylethersulphates containing 3 moles of ethy]ene oxide, all in the form of their sodium or potassium salts.
These alkylethersulphates are normally prepared by 8ul-phation of the corresponding alkoxylated alcohols; since the latter may contain a small amount of non-alkoxylated alcohol which on sulphation is converted into an alkyl-sulphate, it i8 to be understood that the term alkyl-ethersulphate includes the product obtained by sulphation o~ the corresponding alkoxy~lated alcohol The amount of alkylethersulphate, calculated as the so-dium salt, required in the composition ranges from 0.2 to 7.5%, preferably from 0.5 to 5%, and particularly pre-ferably from 0.5 to 3.5% by weight of the final composi-tion.
The alkylarylsulphonates are represented by the following formula in which R is a C10-Cl8 branched or straight chain al-kyl chain and M i9 as hereinbefore defined for the alkyl-ethersulphates.
Typical examples of the alkylarylsulphonates are n-dode-cylbenzene sulphonate, tetrapropylenebenzene sulphonate, n-pentadecylbenzene sulphonate, and linear C12-Cl~ al-kylbenzene sulphonate in which the C12-C15 alkylgroup is obtained from cracked wax polymers, all in the form of their sodium or potassium salt~.
12116 ~ c 813 (R) . 5 Both the alkylethersulphates and the alkylarylsulphonates are well-known anionic synthetic detergents, amply des-cribed in the prior art, e.g. in the textbook of Schwartz-Perry "Surface-active Agents and Detergents", Volumes I
and II of 194g and 1958.
The alkylarylsulphonate is used in the present invention in an amount of 5-15, preferably 6-12~ by weight of the final composition, the alkylarylsulphonate being calcu-lated as the sodium salt.
The builder which is used in the composition can be anyconventional organic or inorganic builder. Typical exam-ples thereof are the alkalimetal-ortho-, -pyro- and -tri-polyphosphates, -glassy polymeric phosphates, -citrates, -nitrilotriacetates, -carboxymethyloxysuccinates; zeo-lites, alkalimetal salts of aminopolyphosphonic acids and so on. Mixtures of various builders are also suit-able.
The preferred builders are the alkalimetal phosphates such as sodium or potassium ortho-, -pyro- and -tripo-lyphosphate, sodiumtripolyphosphate being especially preferred. The amount of the builder present in the com-position ranges from 5 to 30% by wei~ht of the finalcomposition, preferably from 10-25~ by weight.
The nonionic detergent which is included in the composi-tion can be any well-known nonionic detergent. Nonionic detergents usually consist of a hydrophobic moiety which has been reacted with an alkyleneoxide.
Typical examples are primary or secondary, straight- or branched-chain C8-C18 alcohols, condensed with 1-30 moles of alkyleneoxide; mono- or dialkylpheno~s with an alkyl group of 9-18 carbon atoms, condensed with 1-30 7S c 813 ~ R ) moles of alkyleneoxide; C10-Cl8 ~atty acids or C10-cl8 fatty acid mono- or -dialkylolamides condensed with 1-30 moles of alkyleneoxide; block copolymers of different or identical alkyleneoxides and so on. Usually the alkyl-eneoxide is ethyleneoxide, but propyleneoxide or mixturesof ethyleneoxide and propyleneoxide can also be used.
Further suitable ,examples ~an be found in the textbook of M. Schick "Nonionic sur~actant~
The amount of nonionic to be included in the composition ranges ~rom 0.2-5, preferably from 0.5-3~ by weight of the final composition.
The weight ratio of the total amount of anionic detergent to the amount o nonionic varies from 2.5 to 1 to 25 to 1, preferably from 4:1 to 20:1.
The composition of the invention may advantageously further include a buffering agent in an amount of up to 10% by weight of the final composition. Suitable buffer-ing agents are the alkanolamines, such as triethanol-amine, buffer salts such as the alXalimetal carbonates, alkalimetal borates, alkalimetal silicates and so on. It is one of the further advantages of the present inven-tion that the liquid compositions can tolerate apprecia-ble electrolyte levels and that consequently further useful ingredients can be included without impairing the viscosity or stability of the formulations.
Thus, for example, alkalimetal sulphites can be included which improve the detergency: also enzymes, either alone or in admixture with enzyme stabilisers such as polyal-cohols or alkanol~mines with borax, can be included.
Other ingredients, commonly used in liquid detergent compositions, can also be included, such as soil-suæ-pending agents, anti-redeposition agents, hydrotropes, corrosion inhibitors, foam boosters or foam depres~ors, 12~16~S c 813 (R) opacifying agents, perfumes, colouring agents, bleaching agents, bleach precursors, fluorescers and the like.
In this respect it i8 another advantage of the present invention that any type of fluorescer can be included, also those which according to the above British patent application 2 028 365 would not be suitable for inclu-sion in formulations according to that prior proposal.
The products of the present invention can be prepared using conventional techniques. It has in this respect been found that it is advantageous to shear the product at the end of its production process to its maximum stable viscosityt e.g. by post-stirring or passing the product through a desintegrator or similar high shear exerting equipment. Further shear exerted on the thus treated product during its pumping or bottling does not affect the viscosity of the product further.
~le invention will now further be illustrated by way of Example.
Example 1 The following formulation was prepared:
The present invention relates to an aqueous, built li-quid detergent composition which is pourable, physically stable and has a satisfactory, reversible viscosity behaviour.
Aqueous, built liquid detergent compositions are well-known in the art. A vast amount of different formula-tion~ has been described in the prior art, but basically such formulations always contain one or more detergent active compounds and one or more builder sal~s in an aqueous medium, and they are either true solutions, or suspensions, emulsions and the like, depending upon the type and amount of ingredients used.
The presant invention is concerned with aqueous, built liquid detergent compositions of the suspension type, by which is to be understood that one or more of the ingre-dients of the detergent composition are suspended in the final composition.
Such types of aqueous, built liquid detergent compositi-ions have been described in the prior art. Thus, our British patent ~pecification 855 893 describes aqueous built liquid detergent compositions in the form of pour-2S able suspensions, emulsions or coacervates which com-prise as essential ingredients an alXylethersulphate, an alXylarylsulphonate, a carboxymethyl cellulose and an al-kalimetal condensed phosphate. A similar type of products is described in British pat~nt application 2 028 365, which contain an alkylethersulphate, preferably together with an alkylarylsulphonate, a builder salt such as an alkalimetal condensed phosphate, and an optical brighte-ning agent.
`3~''"''' ~ 6 75 c 813 (R) -~ 2 Aqueous, built liquid detergent compositions of the above type, which contain a mixture of an alkylethersulphate and an alkylarylsulphonate as the active detergent ma-terial, and an alkalimetal condensed phosphate as the builder material, suffer however from the drawback that when they are subjected to high shearing action, e.g.
durin~ th2ir manufacture when th~y are e.g. pumped or bottled, their VilSCOSity is irreversibly increased to a very significant degree, resulting in products with an unacceptably high viscosity. Some shearing action is how-ever required to achieve the required physical stability of the products, since too low a shearing action may re-sult in physically unstable~ products.
Consequently, if the manufacturer requires a product with an acceptable pourability and viscosity, he is compelled to use a medium or low shear action during manufacture, accepting a possible unsatisfactory physical stability.
The control of this shear action while pumping or bottling ~0 the liquid product is, moreover, difficult. Thus, in the above British patent specification 885 893 the products are prepared by homogenisation in a colloid mill, whereby they are suhjected to high s~ear action, resulting in physically stable, but too viscous products, and products prepared according to British patent application 2 ~28 365, using controlled agitation (mediwm and strong, avoiding aer~tion), result in products with an acceptable physical stability, but unsatisfactory viscosity. Storage of the latter product at temperature cycling storage conditions often results in an increased, irreversible viscosity.
It has now been found that these drawbacks can be over-come to a significant degree, if in the formulation also a certain amount of a nonionic detergent active material is included. m e presence of this material enables the use of high shearing action, after which however the vis-12116~5 c 813 (R) cosity reversibly returns to an acceptable level, whilemaintaining the physical stability achieved by the high shear action.
In its broadest aspects therefore the present invention relates to an improvement in and to aqueous, built li-quid detergent co]npositions which contain as essential ingredients an al]kylethersulphate and an alkylarylsul-phonate as the active detergent materials, and a builder sa:lt, the improvement comprising the inclusion in the composition of a certain level of a nonionic detergent active material.
Further aspects of the invention will become readily apparent from the description of the invention and its various embodimentQ as detailed below.
The active detergent material comprises as essential ingredients an alkylethersulphate and an alkylarylsul-phonate.
The alkylethersulphates are represented by the followingformula R (OCnH2n ) mS3M
in which R is a linear or branched alkyl chain having from 8 to 18 carbon atoms, n i9 2 or 3, m is a number ranging from 1 to 10 and M is an alkalimetal, alkaline earth metal, ammonium or substituted am~onium radic~l.
R is preferably a linear Cl~-C15 alkyl chain, n is prefer-ably 2, m is preferably from 2 to 5 and M is preferably sodium.
C 813 (R) 12116'7S
Typical examples of such alXylethersulphates are lauryl-ethersulphates containing from 2.5 to 3 mole9 of ethylene oxide or propylene oxide or a mixture of the two; Cll-C15 sec. alkylethersulphates containing from 3 to 12 moles of ethylene oxide and C12-C15 prim. alkylethersulphates containing 3 moles of ethy]ene oxide, all in the form of their sodium or potassium salts.
These alkylethersulphates are normally prepared by 8ul-phation of the corresponding alkoxylated alcohols; since the latter may contain a small amount of non-alkoxylated alcohol which on sulphation is converted into an alkyl-sulphate, it i8 to be understood that the term alkyl-ethersulphate includes the product obtained by sulphation o~ the corresponding alkoxy~lated alcohol The amount of alkylethersulphate, calculated as the so-dium salt, required in the composition ranges from 0.2 to 7.5%, preferably from 0.5 to 5%, and particularly pre-ferably from 0.5 to 3.5% by weight of the final composi-tion.
The alkylarylsulphonates are represented by the following formula in which R is a C10-Cl8 branched or straight chain al-kyl chain and M i9 as hereinbefore defined for the alkyl-ethersulphates.
Typical examples of the alkylarylsulphonates are n-dode-cylbenzene sulphonate, tetrapropylenebenzene sulphonate, n-pentadecylbenzene sulphonate, and linear C12-Cl~ al-kylbenzene sulphonate in which the C12-C15 alkylgroup is obtained from cracked wax polymers, all in the form of their sodium or potassium salt~.
12116 ~ c 813 (R) . 5 Both the alkylethersulphates and the alkylarylsulphonates are well-known anionic synthetic detergents, amply des-cribed in the prior art, e.g. in the textbook of Schwartz-Perry "Surface-active Agents and Detergents", Volumes I
and II of 194g and 1958.
The alkylarylsulphonate is used in the present invention in an amount of 5-15, preferably 6-12~ by weight of the final composition, the alkylarylsulphonate being calcu-lated as the sodium salt.
The builder which is used in the composition can be anyconventional organic or inorganic builder. Typical exam-ples thereof are the alkalimetal-ortho-, -pyro- and -tri-polyphosphates, -glassy polymeric phosphates, -citrates, -nitrilotriacetates, -carboxymethyloxysuccinates; zeo-lites, alkalimetal salts of aminopolyphosphonic acids and so on. Mixtures of various builders are also suit-able.
The preferred builders are the alkalimetal phosphates such as sodium or potassium ortho-, -pyro- and -tripo-lyphosphate, sodiumtripolyphosphate being especially preferred. The amount of the builder present in the com-position ranges from 5 to 30% by wei~ht of the finalcomposition, preferably from 10-25~ by weight.
The nonionic detergent which is included in the composi-tion can be any well-known nonionic detergent. Nonionic detergents usually consist of a hydrophobic moiety which has been reacted with an alkyleneoxide.
Typical examples are primary or secondary, straight- or branched-chain C8-C18 alcohols, condensed with 1-30 moles of alkyleneoxide; mono- or dialkylpheno~s with an alkyl group of 9-18 carbon atoms, condensed with 1-30 7S c 813 ~ R ) moles of alkyleneoxide; C10-Cl8 ~atty acids or C10-cl8 fatty acid mono- or -dialkylolamides condensed with 1-30 moles of alkyleneoxide; block copolymers of different or identical alkyleneoxides and so on. Usually the alkyl-eneoxide is ethyleneoxide, but propyleneoxide or mixturesof ethyleneoxide and propyleneoxide can also be used.
Further suitable ,examples ~an be found in the textbook of M. Schick "Nonionic sur~actant~
The amount of nonionic to be included in the composition ranges ~rom 0.2-5, preferably from 0.5-3~ by weight of the final composition.
The weight ratio of the total amount of anionic detergent to the amount o nonionic varies from 2.5 to 1 to 25 to 1, preferably from 4:1 to 20:1.
The composition of the invention may advantageously further include a buffering agent in an amount of up to 10% by weight of the final composition. Suitable buffer-ing agents are the alkanolamines, such as triethanol-amine, buffer salts such as the alXalimetal carbonates, alkalimetal borates, alkalimetal silicates and so on. It is one of the further advantages of the present inven-tion that the liquid compositions can tolerate apprecia-ble electrolyte levels and that consequently further useful ingredients can be included without impairing the viscosity or stability of the formulations.
Thus, for example, alkalimetal sulphites can be included which improve the detergency: also enzymes, either alone or in admixture with enzyme stabilisers such as polyal-cohols or alkanol~mines with borax, can be included.
Other ingredients, commonly used in liquid detergent compositions, can also be included, such as soil-suæ-pending agents, anti-redeposition agents, hydrotropes, corrosion inhibitors, foam boosters or foam depres~ors, 12~16~S c 813 (R) opacifying agents, perfumes, colouring agents, bleaching agents, bleach precursors, fluorescers and the like.
In this respect it i8 another advantage of the present invention that any type of fluorescer can be included, also those which according to the above British patent application 2 028 365 would not be suitable for inclu-sion in formulations according to that prior proposal.
The products of the present invention can be prepared using conventional techniques. It has in this respect been found that it is advantageous to shear the product at the end of its production process to its maximum stable viscosityt e.g. by post-stirring or passing the product through a desintegrator or similar high shear exerting equipment. Further shear exerted on the thus treated product during its pumping or bottling does not affect the viscosity of the product further.
~le invention will now further be illustrated by way of Example.
Example 1 The following formulation was prepared:
2~ ~ (w/w) Sodium dodecylbenzene sulphonate 10.0 Sodium laurylether sulphate (containing 2.5-3 moles of ethylene oxide) 0.5 Lauryl alcohol, condensed with 8 moles of 30 ethylene oxide 2.5 Sodium tripolyphosphate 15.0 Sodium carbonate 2.5 Fluorescer (a bis[o-sulphostyryl]biphenyl) 0.2 Perfume 0.25 35 Dye 0.008 Water to 100.
1211~ 7S c 813 (R) This product was prepared in the ~ollowing way:
To a slurry, containing water equivalent to 52~ by weight of the above formulation, 0.008~ dye, 0.1% sodiumdodecyl benzenesulphonate, 0.2~ fluorescer, 2.5% sodium carbonate and 15% sodium tripolyphosE~hate (partly in solution and partly present as hexahydrate crystals), 3.5 NaOH (34%
aqueous solution) was addecl, followed by the addition of 10.0% dodecylbenzene sulphc>nic acid, subseque~tly 11.85%
water, thereater 2.5% of t:he laurylalcohol, condensed with 8 moles of ethyleneoxi.de and finally the sodium laurylether sulphate. The last three ingredients were added as quickly as possible after each other under slow mlxing conditions.
Immediately thereafter the product was deaerated, during which step the 0.25% perfume was added. Finally the whole product was agitated for 15-20 minutes while preventing aeration. me p~ was adjusted to 10.5 + 0.25 by NaOH add-ition.
The product had a viscosity of 340 mPa.s (measured with aHaake Rotoviscometer at 25C and 80 sec~l) and a spe-cific gravity of 1.15.
This product was stable for more than 3 months on storage at 0C, 22~C and 37C, respectively, and for more than 1 month at 52C.
Example 2 In the same way as in Example 1 formulations were pre-pared from the same ingredients, but with varying amounts of the alkylarylsulphonate (LAS), the alkylethersulphate (LES) and the nonionic (NI) detergent. The viscosity of each of these formulations was assessed as in Example 1.
The following results were obtained:
1~11675 c 813 (R) Formu- % (w/w) Vi~cosity Stability after lation LAS LES NI range 3 months' storage (mPa.s) _ at 0 22 37C
A 11.0 1.0 1.0 430 ~ ~ +
B 11.0 1.5 0.5 500 + ~ +
C 11.0 2.~ 0.~ 330 - -D 10.5 2.0 0.~ 420 E 10.0 2.0 1.0 540 + ~ +
F 9.5 3.0 0.5 520 ~ +
~ 9.5 2.5 1.0 520 H 9.0 3.5 0.5 430 + ~ +
I 8.5 2.0 ~.5 360 + ~ ~
J 8.5 4.0 0.5 470 + + +
K 8.0 4.5 0.5 530 + + +
L 8.0 5.0 0.0 470 - - +
M 7.5 3.5 2.0 380 + + +
N 7.0 4.5 1.5 440 + + +
Example 3 For comparison purposes, a formulation according to Example 1 of British patent application 2 028 365 was prepared and then subjected to varying shear rates.
The formulation of Example 1 of the present application was also subjected to these varying shear rates, and of both formulations the viscosities were assassed. The fol-lowing results were obtained:
With the prior art formulation the viscosity decreased with an increasing shear rate (from about 3.0 Pa.s at a shear rate of 1 sec 1 to about 300 mPa. 8 at 80 sec~l);
if the viscosity of the same sample was then measured back when raducing the shear from high to low shear rates the visc08ity was found to be much higher (from more than 10.0 Pa.s at 1 sec 1 to about B00 mPa.s at 80 sec 1).
1211~ ~5 c 813 (R) Thus, after the product had been subjected to an in-creasing shear action, the viscosity increased to a much higher level when thereafter again a decreasing shear action was applied.
With the product of Example 1 of the present invention there was no difference in viscosity at increased and decreased shear rates; at 80 sec 1 it was about 320 mPa.s in both cases and at ]. sec 1 about 12.0 Pa.s in both instances.
Exam~le 4 In the same way as in Exampl.e 1, using the same ingre-dients, a product was prepared but with 7% of sodium dodecylbenzene sulphonate, 5i.5% sodium laurylethersul-phate, 0.5% nonionic deterge!nt, 20% sodium tripolyphos-phate, 3.5% sodium carbonate and 0.15% of a fluorescer, known under the registered trade name of Blankophor RKH
766.
m e viscosity of this product was 430 mPa.s (measured as in Example 1) and it was stable for more than 3 months on storage at 22C and 37C.
Example 5 25 The following product was prepared:
% by weight Sodium dodecylbenzene sulphonate6.0 C12-C13 primary linear alcohol con-densed with 6.5 moles of ethylene oxide 2.2 30 Sodium laurylether sulphate 6.6 Trisodium nitrilotriacetate 1 aq. 12.0 Borax 5.0 Glycerol 7.0 Water q 5 12~ S c 813 (R) m e vi~cosity was measured at room temperature at a shear rate o~ 21 sec 1, with the following results:
storage time viscosity (in Pa.s) 5 fresh 1.05 1 day 1.0 1 week 1.05 1 month 1.0
1211~ 7S c 813 (R) This product was prepared in the ~ollowing way:
To a slurry, containing water equivalent to 52~ by weight of the above formulation, 0.008~ dye, 0.1% sodiumdodecyl benzenesulphonate, 0.2~ fluorescer, 2.5% sodium carbonate and 15% sodium tripolyphosE~hate (partly in solution and partly present as hexahydrate crystals), 3.5 NaOH (34%
aqueous solution) was addecl, followed by the addition of 10.0% dodecylbenzene sulphc>nic acid, subseque~tly 11.85%
water, thereater 2.5% of t:he laurylalcohol, condensed with 8 moles of ethyleneoxi.de and finally the sodium laurylether sulphate. The last three ingredients were added as quickly as possible after each other under slow mlxing conditions.
Immediately thereafter the product was deaerated, during which step the 0.25% perfume was added. Finally the whole product was agitated for 15-20 minutes while preventing aeration. me p~ was adjusted to 10.5 + 0.25 by NaOH add-ition.
The product had a viscosity of 340 mPa.s (measured with aHaake Rotoviscometer at 25C and 80 sec~l) and a spe-cific gravity of 1.15.
This product was stable for more than 3 months on storage at 0C, 22~C and 37C, respectively, and for more than 1 month at 52C.
Example 2 In the same way as in Example 1 formulations were pre-pared from the same ingredients, but with varying amounts of the alkylarylsulphonate (LAS), the alkylethersulphate (LES) and the nonionic (NI) detergent. The viscosity of each of these formulations was assessed as in Example 1.
The following results were obtained:
1~11675 c 813 (R) Formu- % (w/w) Vi~cosity Stability after lation LAS LES NI range 3 months' storage (mPa.s) _ at 0 22 37C
A 11.0 1.0 1.0 430 ~ ~ +
B 11.0 1.5 0.5 500 + ~ +
C 11.0 2.~ 0.~ 330 - -D 10.5 2.0 0.~ 420 E 10.0 2.0 1.0 540 + ~ +
F 9.5 3.0 0.5 520 ~ +
~ 9.5 2.5 1.0 520 H 9.0 3.5 0.5 430 + ~ +
I 8.5 2.0 ~.5 360 + ~ ~
J 8.5 4.0 0.5 470 + + +
K 8.0 4.5 0.5 530 + + +
L 8.0 5.0 0.0 470 - - +
M 7.5 3.5 2.0 380 + + +
N 7.0 4.5 1.5 440 + + +
Example 3 For comparison purposes, a formulation according to Example 1 of British patent application 2 028 365 was prepared and then subjected to varying shear rates.
The formulation of Example 1 of the present application was also subjected to these varying shear rates, and of both formulations the viscosities were assassed. The fol-lowing results were obtained:
With the prior art formulation the viscosity decreased with an increasing shear rate (from about 3.0 Pa.s at a shear rate of 1 sec 1 to about 300 mPa. 8 at 80 sec~l);
if the viscosity of the same sample was then measured back when raducing the shear from high to low shear rates the visc08ity was found to be much higher (from more than 10.0 Pa.s at 1 sec 1 to about B00 mPa.s at 80 sec 1).
1211~ ~5 c 813 (R) Thus, after the product had been subjected to an in-creasing shear action, the viscosity increased to a much higher level when thereafter again a decreasing shear action was applied.
With the product of Example 1 of the present invention there was no difference in viscosity at increased and decreased shear rates; at 80 sec 1 it was about 320 mPa.s in both cases and at ]. sec 1 about 12.0 Pa.s in both instances.
Exam~le 4 In the same way as in Exampl.e 1, using the same ingre-dients, a product was prepared but with 7% of sodium dodecylbenzene sulphonate, 5i.5% sodium laurylethersul-phate, 0.5% nonionic deterge!nt, 20% sodium tripolyphos-phate, 3.5% sodium carbonate and 0.15% of a fluorescer, known under the registered trade name of Blankophor RKH
766.
m e viscosity of this product was 430 mPa.s (measured as in Example 1) and it was stable for more than 3 months on storage at 22C and 37C.
Example 5 25 The following product was prepared:
% by weight Sodium dodecylbenzene sulphonate6.0 C12-C13 primary linear alcohol con-densed with 6.5 moles of ethylene oxide 2.2 30 Sodium laurylether sulphate 6.6 Trisodium nitrilotriacetate 1 aq. 12.0 Borax 5.0 Glycerol 7.0 Water q 5 12~ S c 813 (R) m e vi~cosity was measured at room temperature at a shear rate o~ 21 sec 1, with the following results:
storage time viscosity (in Pa.s) 5 fresh 1.05 1 day 1.0 1 week 1.05 1 month 1.0
3 month~ 1.05 Examlple 6 The following product ~ by weight Sodium dodecylbenzene sulpha,nate 8.2 15 hauryl alcohol, condensed with 8 moles of ethylene oxide 2.5 Sodium laurylether sulphate 0.5 Borax 4.0 Glycerol 6.0 20 Tetra sodium pyrophosphate 11.0 Fluorescer 0.1 Proteolytic enzyme 0.4 Water q.s.
had a viscosity (at 23C and 80 sec 1) of 300 mPa.s.
The specific gravity was 1.15, the pH was 8.1.
had a viscosity (at 23C and 80 sec 1) of 300 mPa.s.
The specific gravity was 1.15, the pH was 8.1.
Claims (6)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An aqueous, built liquid detergent composition comprising, in an aqueous medium a) from 0.2 to 7.5% by weight of an alkalimetal alkylether sulphate detergent surfactant;
b) from 5 to 15% by weight of an alkalimetal alkylaryl sulphonate detergent surfactant;
c) from 5 to 30% by weight ol an organic or inorganic builder material;
d) from 0.2 to 5% by weight of a nonionic detergent surfactant.
b) from 5 to 15% by weight of an alkalimetal alkylaryl sulphonate detergent surfactant;
c) from 5 to 30% by weight ol an organic or inorganic builder material;
d) from 0.2 to 5% by weight of a nonionic detergent surfactant.
2. The composition of claim 1, comprising from 0.5 to 3.5% of a), from 6 to 12% of b), from 10 to 25% of c) and from 0.5 to 3% of d).
3. The composition of claim 1, in which a) is a sodium alkylether sulphate in which the alkylgroup ranges from C12 to C15 and the ethergroup consists of 2.5 to 3 moles of ethylene oxide, propylene oxide or a mixture thereof, b) is sodium dodecylbenzene sulphonate, c) is selected from the group consisting of the alkalimetal orthophosphates, -pyrophosphates, -tripolyphosphates, -glassy polymeric phosphates, -citrates, -nitrilotriacetates,-carboxymethyl oxysuccinates, -aminopolyphosphonates, and zeolites, and d) is an alkoxylated aliphatic C8 to C18 alcohol, condensed with 1 to 30 moles of ethylene oxide, propylene oxide or mixtures thereof.
4. The composition of claim 1, in which the nonionic detergent surfactant is a C12 to C13 primary alcohol, condensed with 6.5 to 8 moles of ethylene oxide.
5. The composition of claim 1, in which the builder material is selected from the group consisting of sodium tripolyphosphate, tetrasodium pyrophosphate, trisodium citrate and trisodium nitriloacetate.
6. The composition of claim 1, in which the weight ratio of the sum of a) and b) to d) ranges from 2.5:1 to 25:1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8224717 | 1982-08-27 | ||
| GB8224717 | 1982-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1211675A true CA1211675A (en) | 1986-09-23 |
Family
ID=10532577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000435481A Expired CA1211675A (en) | 1982-08-27 | 1983-08-26 | Liquid detergent composition |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0102124A3 (en) |
| JP (1) | JPS5958098A (en) |
| AU (1) | AU555326B2 (en) |
| BR (1) | BR8304630A (en) |
| CA (1) | CA1211675A (en) |
| NO (1) | NO833069L (en) |
| NZ (1) | NZ205345A (en) |
| ZA (1) | ZA836228B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8313348D0 (en) * | 1983-05-14 | 1983-06-22 | Procter & Gamble Ltd | Liquid detergent compositions |
| CA1276852C (en) * | 1985-06-21 | 1990-11-27 | Francis John Leng | Liquid detergent composition |
| GB8713574D0 (en) * | 1987-06-10 | 1987-07-15 | Albright & Wilson | Liquid detergent compositions |
| GB2238530A (en) * | 1989-10-31 | 1991-06-05 | Grace W R & Co | Antifoaming and defoaming compositions |
| DE4333224A1 (en) * | 1993-09-30 | 1995-04-06 | Henkel Kgaa | Paste-shaped textile detergent |
| WO2008033280A1 (en) * | 2006-09-11 | 2008-03-20 | The Dial Corporation | Liquid detergents with sustained release fragrance |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5139247B2 (en) * | 1971-12-29 | 1976-10-27 | ||
| JPS5282909A (en) * | 1975-12-29 | 1977-07-11 | Duskin Franchise Co | Liquid detergent composition |
| DE2603307A1 (en) * | 1976-01-29 | 1977-08-04 | Oskar Dr Wack | Perfumed aq. washing compsn. - contg. phosphoric ester, nonionic surfactant, alkyl-benzene-sulphonate, alkyl sulphate, citric acid and sodium citrate |
| GB2010893B (en) * | 1977-12-22 | 1982-11-17 | Unilever Ltd | Liquid detergent composition |
| DE2945301B1 (en) * | 1979-11-09 | 1980-06-19 | Adam Opel Ag, 6090 Ruesselsheim | Windshield cleaning fluid |
-
1983
- 1983-08-22 NZ NZ205345A patent/NZ205345A/en unknown
- 1983-08-23 EP EP83201216A patent/EP0102124A3/en not_active Withdrawn
- 1983-08-23 ZA ZA836228A patent/ZA836228B/en unknown
- 1983-08-23 AU AU18313/83A patent/AU555326B2/en not_active Ceased
- 1983-08-26 BR BR8304630A patent/BR8304630A/en not_active IP Right Cessation
- 1983-08-26 JP JP58155122A patent/JPS5958098A/en active Pending
- 1983-08-26 CA CA000435481A patent/CA1211675A/en not_active Expired
- 1983-08-26 NO NO833069A patent/NO833069L/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO833069L (en) | 1984-02-28 |
| BR8304630A (en) | 1984-04-03 |
| JPS5958098A (en) | 1984-04-03 |
| NZ205345A (en) | 1985-08-30 |
| EP0102124A2 (en) | 1984-03-07 |
| ZA836228B (en) | 1985-04-24 |
| AU555326B2 (en) | 1986-09-18 |
| AU1831383A (en) | 1984-03-01 |
| EP0102124A3 (en) | 1984-07-18 |
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