CA2158542A1 - Concentrated cleaning compositions - Google Patents
Concentrated cleaning compositionsInfo
- Publication number
- CA2158542A1 CA2158542A1 CA 2158542 CA2158542A CA2158542A1 CA 2158542 A1 CA2158542 A1 CA 2158542A1 CA 2158542 CA2158542 CA 2158542 CA 2158542 A CA2158542 A CA 2158542A CA 2158542 A1 CA2158542 A1 CA 2158542A1
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- Prior art keywords
- alkyl
- surfactant
- mixtures
- chain
- composition according
- Prior art date
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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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2079—Monocarboxylic acids-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
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/146—Sulfuric acid esters
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/825—Mixtures of compounds all of which are non-ionic
- C11D1/8255—Mixtures of compounds all of which are non-ionic containing a combination of compounds differently alcoxylised or with differently alkylated chains
-
- 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
- C11D1/66—Non-ionic compounds
- C11D1/83—Mixtures of non-ionic with anionic compounds
- C11D1/831—Mixtures of non-ionic with anionic compounds of sulfonates with ethers of polyoxyalkylenes without phosphates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/10—Carbonates ; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2068—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
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
- C11D1/143—Sulfonic acid esters
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
Landscapes
- 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)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Inorganic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Stable and clear concentrated cleaning compositions are disclosed which comprise at least one long chain surfactant, and which are stabilized by the additional presence of short chain surfactants. The short chain surfactants further boost grease cleaning performer.
Description
CONCENTRATED CLEANING COMPOSITIONS
Technical Field The present invention relates to concentrated cleaning compositions. Although the present invention relates primarily to cleaning compositions for hard surfaces, it may also be of interest for other cleaning compositions including dishwashing and laundry detergent compositions.
Background of the Invention Concentrated cleaning compositions are well known in the art. Concentrated compositions are mainly characterized by the fact that they comprise a higher concentration of active ingredients compared to a conventional cleaning WO941Z1767 PCT/US94/02747 ~
Technical Field The present invention relates to concentrated cleaning compositions. Although the present invention relates primarily to cleaning compositions for hard surfaces, it may also be of interest for other cleaning compositions including dishwashing and laundry detergent compositions.
Background of the Invention Concentrated cleaning compositions are well known in the art. Concentrated compositions are mainly characterized by the fact that they comprise a higher concentration of active ingredients compared to a conventional cleaning WO941Z1767 PCT/US94/02747 ~
2 1 ~ 2 composition, and a problem which is typically encountered when formulating concentrated cleaning compositions is therefore the physical stability of such compositions.
Indeed, because such compositions comprise a high amount of active ingredients in a limited amount of water, stability problems appear which lead, if not solved, to compositions which separate into several phases. This phenomenon affects the performance of the composition and is visually noticeable, thereby rendering such formulations unfit for commercialization.
Various solutions have been proposed to solve this problem which typically involve the use of specific stabilizing ingredients, or hydrotropes. Such ingredients have the sole function of stabilizing the composition. They thus increase the cost of formulating such compositions without providing any cleaning performance benefits, and they furthermore require to free up parts in the formulation which could otherwise be used to formulate more actives.
For instance, EP 316 726 discloses concentrated compositions in the form of microemulsions which comprise water, perfume, a surfactant and a so-called co-surfactant.
The co-surfactant is said to reduce the interfacial tension at interfaces between dispersed and continuous phases of an emulsion of said surfactant, thereby creating a stable microemulsion. The so-called co-surfactants in the '726 publication are listed as specific glycol ethers, which are traditionally regarded as solvents in this field, or specific carboxylic acids. The co-surfactants in the '726 publication do not appear to participate to the overall cleaning performance of the product.
It is therefore an object of the present invention to formulate a stable concentrated cleaning composition without using ingredients which are provided for the sole purpose of providing stability to the compositions herein, Wo91/21767 ~3 8 ~ 31~ PCT/US94102747 but which also participate significantly to the cleaning performance of said compositions.
It has now been found that this object can be met by formulating a concentrated aqueous composition comprising a traditional long-chain surfactant, in combination with at least one short chain surfactant, i.e. with a hydrophobic group consisting of a C6-ClO alkyl chain. Said short chain surfactants provide stability to the compositions herein and, in the same time, significantly boost the overall cleaning performance, especially grease cleaning, both `in neat and dilute usage.
Summary of the Invention The compositions herein are stable clear concentrated cleaning compositions comprising from lO % to 80 % by weight of the total composition of water, less than 15 ~
perfume and at least one long chain surfactant comprising a Cll- C24 alkyl chain as its hydrophobic portion, or mixtures thereof, said compositions further comprising at least one co-surfactant consisting of a short chain surfactant comprising a C6-ClO alkyl chain as its hydrophobic portion, or mixtures thereof, except where said short chain surfactant is an alkyl ether carboxylate, said alkyl chain as said hydrophobic portion is a C6-C8 alkyl chain.
Detailed Description of the Invention The compositions of the present invention are concentrated aqueous compositions. By concentrated, it is meant herein that the compositions comprise from lO ~ to 80 % by weight of the total composition of water, preferably from 15 % to 75 %, most preferably from 30 % to 75 %.
The compositions according to the present invention are clear and stable. By clear and stable, it is meant herein that the compositions of the present invention are macroscopically substantially transparent, in the absence of any opacifier, and that said compositions do not macroscopically separate into separate phases during at least l month, at temperatures ranging from 4C to 50OC, upon standing.
The compositions according to the present invention further comprise a long chain surfactant, or mixtures thereof. All surfactants have in common that they comprise a hydrophobic portion and a hydrophilic portion. By long chain surfactants, it is meant herein surfactants which comprise a Cll to C24 alkyl chain as their hydrophobic portion.
Such long chain surfactants are accordingly those conventionally used in this field and can be of any type.
Accordingly, suitable long chain surfactants for use herein include Cll-C24 alkyl sulfates (Cll-C24SO4)~ alkyl ether sulfates (Cll-c24(OcH2cH2)eso4)~ alkyl sulfonates (Cll-C24SO3), alkyl succinates (Cll-C24OOCCH2CH2COOZ)~ alkyl carboxylates (Cll-C24COOM), alkyl ether carboxylates (Cll-C24(OCH2CH2)eCOOM), alkyl sarcosinates (Cll-C24CON(CH3)R), alkyl sulfo succinates (Cll-C240OCCH(SO3M)CH2COOZ), amine oxides (Cll-C24RR'NO), glucose amides (Cll-C24C~NR''X), alkyl pyrrolidones (Cll-C24tC4H6ON), alkylpolysaccharides (Cll~C24OGg)~ alkyl alkoxylates (Cll-C24(ocH2cH2)e(ocH2cH2cH2)poH) and betaines (Cll-C24N+(CH3)2CH2COO-). In the formulae in brackets, e and p are independently from 0 to 20 and e+p>0, Z is M or R, M is H or any counterion such as those known in the art, including Na, K, Li, NH4, amine, X is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof, R, R and R''' are Cl-C5 alkyl groups, possibly functionalized with hydroxyl groups, R and R' are preferably Cl-C3, most preferably WO91/21767 215 8 ~ 4 ~ O PCT/US94/02747 methyl, R'' is preferably 2-hydroxyethyl or 2 hydroxypropyl, G is a saccharide, preferably glucose, and g is of from l.5 to 8. All these surfactants are well known in the art. A more complete disclosure of glucose amides can be found for instance in Wo 92-06154 and a more 1 complete disclosure of alkyl polysaccharides can be found for instance in US 4,536,319. The compositions according to the present invention may comprise any of the above surfactants alone, or any combination thereof, depending on the end use envisioned. In the compositions herein, preferred long chain surfactants are selected from long chain alkyl sulfonates and long chain alkyl ethoxylates, and mixtures thereof.
The compositions according to the present invention further comprise at least one short chain surfactant, or mixtures thereof. The definition of short chain surfactants is as above for long chain surfactants, except that said alkyl group as said hydrophobic portion is a C6 to Cl0 alkyl group, and where said short chain surfactant is an alkyl ether carboxylate, said alkyl chain in said hydrophobic portion is a c6-C8 alkyl chain. Accordingly, suitable short chain surfactants for use herein include those listed herein above in the description of long chain surfactants, but with shorter alkyl chain.
Preferred short chain nonionic surfactants for use herein are alkyl alkoxylates according to the formula C6-Clo(OCH2CH2)e(OCH2CH2CH2)pOH, where e and p representing respectively the degree of ethoxylation and propoxylation are independently of from 0 to 20, and that e+p>0. Most preferred short chain nonionic surfactants for use herein are those where e and p are such that e+p is from 3 to l0, particularly those where p is o and e is from 3 to 8.
Also, most preferred short chain nonionic surfactants for use herein are those where said short chain is a hydrocarbon chain comprising from 7 to l0 carbon atoms.
W~91/21767 PCT/US9~/02747 2~8 ~ 42 6 Said preferred short chain nonionic surfactants for use herein can be manufactured by the processes well known to the man skilled in the art, such as condensation of the corresponding alcohol and alkylene oxide, but such short chain surfactants are more conveniently commercially available for instance from Sidobre under the trade name Mergital@C4 (C8E04), from Kolb under the trade names Imbentin@ AG/810/050 and AG/810/080 (respectively C8-lOE05 and C8-lOEo8) Preferred short chain anionic surfactants for use herein are C6-ClO alkyl sulfates (C6-CloSo4) and alkyl sulfonates (C6-ClOS03). Most preferred are the C6-C8 alkyl sulfates and sulfonates. Such short chain anionic surfactants can be made by well known sulphation or sulphonation processes followed by neutralization, but said anionic short chain surfactants are more conveniently commercially available, for instance from Rhone Poulenc under the trade name Rhodapon@ OLS, or from Witco under the trade name witconateQ.
The compositions according to the present invention may comprise from O.l % to 50 ~ by weight of the total composition, preferably from 1% to 40%, most preferably from l.5% to 30% of said short chain surfactants. The short chain surfactants herein act not only as active cleaning ingredients, but also as stabilizers. If short chain anionic surfactants are used, it is preferred to observe a minimum weight ratio of short chain anionic surfactant to longer chain surfactant of l:lO. If short chain nonionic surfactants are used, it is preferred to observe a minimum weight ratio of short chain nonionic to longer chain surfactant of l:5.
Depending on the end use envisioned, the compositions herein may further comprise a variety of other optional ~ WOs~/2l767 215 8 ~ ~ 2 PCT/US94/02747 ingredients including builders, alkanolamines, pH adjusting agents, perfumes in amounts of less than 15% by weight of the total composition, dyes, bleaches, enzymes and the like.
In some instances, it may be appropriate to include a suds suppressing system in the compositions herein. Said suds suppressing system can advantageously be a mixture of 2-alkyl alkanols as described for instance in DE 40 21 265, or mixtures thereof, with a C8 to C22 fatty acid, or mixtures thereof. Such a system is particularly advantageous as both ingredients appear to act in synergy.
Thus even a very low amount of said system is enough to control suds efficiently. Accordingly, said system is present in amounts of from 0.1% to 5% by weight of the total composition, preferably 0.5% to 3%.
The compositions herein do not require the presence of a stabilizing compound. By stabilizing compound, it is meant herein a compound whose sole function is to enhance the physical stability of the composition. Such compounds are typically xylene or toluene sulphonate salts, and glycol ethers, including ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, dipropylene glycol monobutyl ether, dipropylene glycol methyl ether, propylene glycol methyl ether, tripropylene glycol methyl ether, propylene glycol monobutyl ether and other various solvents suvh as ethanol and butanol. Accordingly, the compositions of the present invention are preferably substantially free of such stabilizing compounds.
The present invention further encompasses a method of cleaning a hard surface which comprises the steps of diluting a composition according to the preceding claims in water, then applying it to said hard surface. Depending on the exact formulation, the compositions herein may be used both neat and diluted from 10 to 500 times.
WO91/21767 - PCTiUS9~/02747 Examples The present invention will be further illustrated by the following examples.
I II III IV
Cl2/15 alkyl ethoxylate EO3 3 3 cl3/l5 alkyl ethoxylate EO7 - _ 20 Cl3/l5 alkyl ethoxylate EO30 5 5 C12/l4 alkyl sulfonate _ _ _ 30 C8 alkyl sulfate - l0 l0 l0 C8 alkyl ethoxylate EO6 - 9 Citric acid 3 3 Monoethanolamine 3 3 Triethanolamine - - 3 Water & minors ----------up to 100%-------All compositions were evaluated for their physical stability at 4C, at room temperature (20C), and at 50C.
Composition I, which is not within the invention, was a gel at 4C, and an emulsion at room temperature and at 50C.
All other compositions, within the invention, were clear transparent liquids in the same conditions.
Other compositions were made by mixing the listed ingredients in the listed proportions.
V VI VII VIII
Cl3/15 alkyl ethoxylate EO3 4 3 5 cl3/l5 alkyl ethoxylate EO7 - _ _ 5 C7/9 alkyl sulfate 7.5 - - _ C8 alkyl sulfate - 8 - l0 C8 alkyl sulfonate - - l0 C7/9 alkyl ethoxylate EO6 - - l0 5 ~ WO91/21767 215 8 ~ ~ 2 PCT/US94/02747 C8/10 alkyl ethoxylate EO5 10 9 - 9 C13/1s alkyl ethoxylate EO30 6 4 3 5 Na Paraffin Sulfonate - 5 Citric acid 3 - - 3 2-hexyl decanol 1 0.6 Palm Kernel Fatty Acid 0.4 0.4 Sodium Carbonate - 3 Water & minors --------~-up to 100%-------
Indeed, because such compositions comprise a high amount of active ingredients in a limited amount of water, stability problems appear which lead, if not solved, to compositions which separate into several phases. This phenomenon affects the performance of the composition and is visually noticeable, thereby rendering such formulations unfit for commercialization.
Various solutions have been proposed to solve this problem which typically involve the use of specific stabilizing ingredients, or hydrotropes. Such ingredients have the sole function of stabilizing the composition. They thus increase the cost of formulating such compositions without providing any cleaning performance benefits, and they furthermore require to free up parts in the formulation which could otherwise be used to formulate more actives.
For instance, EP 316 726 discloses concentrated compositions in the form of microemulsions which comprise water, perfume, a surfactant and a so-called co-surfactant.
The co-surfactant is said to reduce the interfacial tension at interfaces between dispersed and continuous phases of an emulsion of said surfactant, thereby creating a stable microemulsion. The so-called co-surfactants in the '726 publication are listed as specific glycol ethers, which are traditionally regarded as solvents in this field, or specific carboxylic acids. The co-surfactants in the '726 publication do not appear to participate to the overall cleaning performance of the product.
It is therefore an object of the present invention to formulate a stable concentrated cleaning composition without using ingredients which are provided for the sole purpose of providing stability to the compositions herein, Wo91/21767 ~3 8 ~ 31~ PCT/US94102747 but which also participate significantly to the cleaning performance of said compositions.
It has now been found that this object can be met by formulating a concentrated aqueous composition comprising a traditional long-chain surfactant, in combination with at least one short chain surfactant, i.e. with a hydrophobic group consisting of a C6-ClO alkyl chain. Said short chain surfactants provide stability to the compositions herein and, in the same time, significantly boost the overall cleaning performance, especially grease cleaning, both `in neat and dilute usage.
Summary of the Invention The compositions herein are stable clear concentrated cleaning compositions comprising from lO % to 80 % by weight of the total composition of water, less than 15 ~
perfume and at least one long chain surfactant comprising a Cll- C24 alkyl chain as its hydrophobic portion, or mixtures thereof, said compositions further comprising at least one co-surfactant consisting of a short chain surfactant comprising a C6-ClO alkyl chain as its hydrophobic portion, or mixtures thereof, except where said short chain surfactant is an alkyl ether carboxylate, said alkyl chain as said hydrophobic portion is a C6-C8 alkyl chain.
Detailed Description of the Invention The compositions of the present invention are concentrated aqueous compositions. By concentrated, it is meant herein that the compositions comprise from lO ~ to 80 % by weight of the total composition of water, preferably from 15 % to 75 %, most preferably from 30 % to 75 %.
The compositions according to the present invention are clear and stable. By clear and stable, it is meant herein that the compositions of the present invention are macroscopically substantially transparent, in the absence of any opacifier, and that said compositions do not macroscopically separate into separate phases during at least l month, at temperatures ranging from 4C to 50OC, upon standing.
The compositions according to the present invention further comprise a long chain surfactant, or mixtures thereof. All surfactants have in common that they comprise a hydrophobic portion and a hydrophilic portion. By long chain surfactants, it is meant herein surfactants which comprise a Cll to C24 alkyl chain as their hydrophobic portion.
Such long chain surfactants are accordingly those conventionally used in this field and can be of any type.
Accordingly, suitable long chain surfactants for use herein include Cll-C24 alkyl sulfates (Cll-C24SO4)~ alkyl ether sulfates (Cll-c24(OcH2cH2)eso4)~ alkyl sulfonates (Cll-C24SO3), alkyl succinates (Cll-C24OOCCH2CH2COOZ)~ alkyl carboxylates (Cll-C24COOM), alkyl ether carboxylates (Cll-C24(OCH2CH2)eCOOM), alkyl sarcosinates (Cll-C24CON(CH3)R), alkyl sulfo succinates (Cll-C240OCCH(SO3M)CH2COOZ), amine oxides (Cll-C24RR'NO), glucose amides (Cll-C24C~NR''X), alkyl pyrrolidones (Cll-C24tC4H6ON), alkylpolysaccharides (Cll~C24OGg)~ alkyl alkoxylates (Cll-C24(ocH2cH2)e(ocH2cH2cH2)poH) and betaines (Cll-C24N+(CH3)2CH2COO-). In the formulae in brackets, e and p are independently from 0 to 20 and e+p>0, Z is M or R, M is H or any counterion such as those known in the art, including Na, K, Li, NH4, amine, X is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof, R, R and R''' are Cl-C5 alkyl groups, possibly functionalized with hydroxyl groups, R and R' are preferably Cl-C3, most preferably WO91/21767 215 8 ~ 4 ~ O PCT/US94/02747 methyl, R'' is preferably 2-hydroxyethyl or 2 hydroxypropyl, G is a saccharide, preferably glucose, and g is of from l.5 to 8. All these surfactants are well known in the art. A more complete disclosure of glucose amides can be found for instance in Wo 92-06154 and a more 1 complete disclosure of alkyl polysaccharides can be found for instance in US 4,536,319. The compositions according to the present invention may comprise any of the above surfactants alone, or any combination thereof, depending on the end use envisioned. In the compositions herein, preferred long chain surfactants are selected from long chain alkyl sulfonates and long chain alkyl ethoxylates, and mixtures thereof.
The compositions according to the present invention further comprise at least one short chain surfactant, or mixtures thereof. The definition of short chain surfactants is as above for long chain surfactants, except that said alkyl group as said hydrophobic portion is a C6 to Cl0 alkyl group, and where said short chain surfactant is an alkyl ether carboxylate, said alkyl chain in said hydrophobic portion is a c6-C8 alkyl chain. Accordingly, suitable short chain surfactants for use herein include those listed herein above in the description of long chain surfactants, but with shorter alkyl chain.
Preferred short chain nonionic surfactants for use herein are alkyl alkoxylates according to the formula C6-Clo(OCH2CH2)e(OCH2CH2CH2)pOH, where e and p representing respectively the degree of ethoxylation and propoxylation are independently of from 0 to 20, and that e+p>0. Most preferred short chain nonionic surfactants for use herein are those where e and p are such that e+p is from 3 to l0, particularly those where p is o and e is from 3 to 8.
Also, most preferred short chain nonionic surfactants for use herein are those where said short chain is a hydrocarbon chain comprising from 7 to l0 carbon atoms.
W~91/21767 PCT/US9~/02747 2~8 ~ 42 6 Said preferred short chain nonionic surfactants for use herein can be manufactured by the processes well known to the man skilled in the art, such as condensation of the corresponding alcohol and alkylene oxide, but such short chain surfactants are more conveniently commercially available for instance from Sidobre under the trade name Mergital@C4 (C8E04), from Kolb under the trade names Imbentin@ AG/810/050 and AG/810/080 (respectively C8-lOE05 and C8-lOEo8) Preferred short chain anionic surfactants for use herein are C6-ClO alkyl sulfates (C6-CloSo4) and alkyl sulfonates (C6-ClOS03). Most preferred are the C6-C8 alkyl sulfates and sulfonates. Such short chain anionic surfactants can be made by well known sulphation or sulphonation processes followed by neutralization, but said anionic short chain surfactants are more conveniently commercially available, for instance from Rhone Poulenc under the trade name Rhodapon@ OLS, or from Witco under the trade name witconateQ.
The compositions according to the present invention may comprise from O.l % to 50 ~ by weight of the total composition, preferably from 1% to 40%, most preferably from l.5% to 30% of said short chain surfactants. The short chain surfactants herein act not only as active cleaning ingredients, but also as stabilizers. If short chain anionic surfactants are used, it is preferred to observe a minimum weight ratio of short chain anionic surfactant to longer chain surfactant of l:lO. If short chain nonionic surfactants are used, it is preferred to observe a minimum weight ratio of short chain nonionic to longer chain surfactant of l:5.
Depending on the end use envisioned, the compositions herein may further comprise a variety of other optional ~ WOs~/2l767 215 8 ~ ~ 2 PCT/US94/02747 ingredients including builders, alkanolamines, pH adjusting agents, perfumes in amounts of less than 15% by weight of the total composition, dyes, bleaches, enzymes and the like.
In some instances, it may be appropriate to include a suds suppressing system in the compositions herein. Said suds suppressing system can advantageously be a mixture of 2-alkyl alkanols as described for instance in DE 40 21 265, or mixtures thereof, with a C8 to C22 fatty acid, or mixtures thereof. Such a system is particularly advantageous as both ingredients appear to act in synergy.
Thus even a very low amount of said system is enough to control suds efficiently. Accordingly, said system is present in amounts of from 0.1% to 5% by weight of the total composition, preferably 0.5% to 3%.
The compositions herein do not require the presence of a stabilizing compound. By stabilizing compound, it is meant herein a compound whose sole function is to enhance the physical stability of the composition. Such compounds are typically xylene or toluene sulphonate salts, and glycol ethers, including ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, dipropylene glycol monobutyl ether, dipropylene glycol methyl ether, propylene glycol methyl ether, tripropylene glycol methyl ether, propylene glycol monobutyl ether and other various solvents suvh as ethanol and butanol. Accordingly, the compositions of the present invention are preferably substantially free of such stabilizing compounds.
The present invention further encompasses a method of cleaning a hard surface which comprises the steps of diluting a composition according to the preceding claims in water, then applying it to said hard surface. Depending on the exact formulation, the compositions herein may be used both neat and diluted from 10 to 500 times.
WO91/21767 - PCTiUS9~/02747 Examples The present invention will be further illustrated by the following examples.
I II III IV
Cl2/15 alkyl ethoxylate EO3 3 3 cl3/l5 alkyl ethoxylate EO7 - _ 20 Cl3/l5 alkyl ethoxylate EO30 5 5 C12/l4 alkyl sulfonate _ _ _ 30 C8 alkyl sulfate - l0 l0 l0 C8 alkyl ethoxylate EO6 - 9 Citric acid 3 3 Monoethanolamine 3 3 Triethanolamine - - 3 Water & minors ----------up to 100%-------All compositions were evaluated for their physical stability at 4C, at room temperature (20C), and at 50C.
Composition I, which is not within the invention, was a gel at 4C, and an emulsion at room temperature and at 50C.
All other compositions, within the invention, were clear transparent liquids in the same conditions.
Other compositions were made by mixing the listed ingredients in the listed proportions.
V VI VII VIII
Cl3/15 alkyl ethoxylate EO3 4 3 5 cl3/l5 alkyl ethoxylate EO7 - _ _ 5 C7/9 alkyl sulfate 7.5 - - _ C8 alkyl sulfate - 8 - l0 C8 alkyl sulfonate - - l0 C7/9 alkyl ethoxylate EO6 - - l0 5 ~ WO91/21767 215 8 ~ ~ 2 PCT/US94/02747 C8/10 alkyl ethoxylate EO5 10 9 - 9 C13/1s alkyl ethoxylate EO30 6 4 3 5 Na Paraffin Sulfonate - 5 Citric acid 3 - - 3 2-hexyl decanol 1 0.6 Palm Kernel Fatty Acid 0.4 0.4 Sodium Carbonate - 3 Water & minors --------~-up to 100%-------
Claims (10)
1. A stable and clear concentrated cleaning composition comprising from 10 % to 80 % by weight of the total composition of water, less than 15 % perfume and at least one long chain surfactant comprising a C11-C24 alkyl chain as its hydrophobic portion, or mixtures thereof, characterized in that said composition further comprises at least one co-surfactant consisting of a short chain surfactant comprising a C6-C10 alkyl chain as its hydrophobic portion, or mixtures thereof, except where said short chain surfactant is an alkyl ether carboxylate, said alkyl chain as said hydrophobic portion is a C6-C8 alkyl chain.
2. A composition according to claim 1 wherein said short chain surfactant or mixtures thereof represents from 0.1 % to 50 % by weight of the total composition, preferably from 1 % to 40%, most preferably from 1.5% to 30%.
3. A composition according to the preceding claims wherein said short chain surfactant, or mixtures thereof is :
-a nonionic surfactant according to the formula C6-C10(OCH2CH2)e(OCH2CH2CH2)pOH, where e and p representing respectively the degree of ethoxylation and propoxylation are independently of from 0 to 20, and that e+p>0; or -an anionic surfactant according to the formula C6-C10SO4 or C6-C10SO3; or -Mixtures thereof.
-a nonionic surfactant according to the formula C6-C10(OCH2CH2)e(OCH2CH2CH2)pOH, where e and p representing respectively the degree of ethoxylation and propoxylation are independently of from 0 to 20, and that e+p>0; or -an anionic surfactant according to the formula C6-C10SO4 or C6-C10SO3; or -Mixtures thereof.
4. A composition according to claim 3 wherein e and p are such that e+p is from 3 to 10, preferably p is 0 and e is from 3 to 8.
5. A composition according to claim 3 wherein said anionic surfactant is C6-C10SO4 or C6-C10SO3.
6. A composition according to the preceding claims which comprises from 30% to 70% by weight of the total composition of water.
7. A composition according to any of the preceding claims wherein said long chain surfactants are selected from long chain alkyl sulfonates and long chain alkyl ethoxylates, and mixtures thereof.
8. A composition according to any of the preceding claims which is substantially free of stabilizing compounds.
9. A composition according to any of the preceding claims which comprises from 0.1% to 5% by weight of the total composition, preferably 0.5% to 3% of a suds suppressing system, said suds suppressing system comprising a 2-alkyl alkanol, or mixtures thereof and a C8-C22 fatty acid, or mixtures thereof.
10.A method of cleaning a hard surface which comprises the steps of diluting a composition according to the preceding claims in water, then applying it to said hard surface.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP93870050A EP0616028A1 (en) | 1993-03-19 | 1993-03-19 | Cleaning compositions with short chain nonionic surfactants |
| EP93870125A EP0616026A1 (en) | 1993-03-19 | 1993-07-07 | Concentrated cleaning compositions |
| EP93870125.7 | 1993-07-07 | ||
| EP93870050.7 | 1993-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2158542A1 true CA2158542A1 (en) | 1994-09-29 |
Family
ID=26134951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2158542 Abandoned CA2158542A1 (en) | 1993-03-19 | 1994-03-14 | Concentrated cleaning compositions |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0616026A1 (en) |
| JP (1) | JPH08508765A (en) |
| CN (1) | CN1122611A (en) |
| AU (1) | AU6407394A (en) |
| BR (1) | BR9406013A (en) |
| CA (1) | CA2158542A1 (en) |
| FI (1) | FI954396A (en) |
| MA (1) | MA23137A1 (en) |
| NO (1) | NO953644L (en) |
| NZ (1) | NZ263393A (en) |
| WO (1) | WO1994021767A1 (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0666308B1 (en) * | 1994-02-03 | 2000-08-09 | The Procter & Gamble Company | Multi-purpose liquid cleaning compositions |
| GB9509939D0 (en) * | 1995-05-17 | 1995-07-12 | Unilever Plc | Aqueous liquid cleansing composition containing fatty acid soaps |
| AU713278B2 (en) * | 1996-03-14 | 1999-11-25 | Johnson & Johnson Consumer Companies, Inc. | Cleansing and moisturizing surfactant compositions |
| US6124253A (en) * | 1997-09-16 | 2000-09-26 | Church & Dwight Co., Inc. | Aqueous composition for low-temperature metal-cleaning and method of use |
| DE19814829C2 (en) * | 1998-04-02 | 2001-04-12 | Merz & Co Gmbh & Co | Water-based cleaners and disinfectants, their use and methods for automated simultaneous cleaning and disinfection of medical instruments, in particular endoscopes |
| EP1129173A2 (en) * | 1998-11-12 | 2001-09-05 | Colgate-Palmolive Company | Microemulsion liquid cleaning composition containing a short chain amphiphile |
| NZ514069A (en) | 1999-03-12 | 2004-01-30 | Pfizer Prod Inc | Compositions comprising a potassium salt active ingredient including oral compositions for reducing dental nerve and dentin sensitivity comprising a non-menthol flavouring |
| DK2796553T3 (en) | 2000-03-30 | 2019-09-30 | Whitehead Inst Biomedical Res | RNA Sequence-Specific Mediators of RNA Interference |
| ES2728168T3 (en) | 2000-12-01 | 2019-10-22 | Max Planck Gesellschaft | Small RNA molecules that mediate RNA interference |
| MY137154A (en) * | 2002-01-21 | 2008-12-31 | Basf Ag | Alkylglycol alkoxylates or alkyldiglycol alkoxylates, mixtures thereof with tensides and their use |
| WO2003091192A1 (en) | 2002-04-26 | 2003-11-06 | Basf Aktiengesellschaft | C10-alkanolalkoxylate mixtures and the use thereof |
| JP4051348B2 (en) * | 2002-04-26 | 2008-02-20 | ビーエーエスエフ アクチェンゲゼルシャフト | Alkoxylate mixtures and detergents comprising these |
| WO2003091191A1 (en) | 2002-04-26 | 2003-11-06 | Basf Aktiengesellschaft | C10-alkanolalkoxylates and the use thereof |
| US20050107275A1 (en) * | 2003-11-14 | 2005-05-19 | Hecht Stacie E. | Liquid detergent composition comprising a solubilizing nonionic surfactant |
| DE102004034646A1 (en) | 2004-07-16 | 2006-02-16 | Basf Ag | Method for accelerating the wetting in paints |
| JP5366821B2 (en) * | 2006-12-14 | 2013-12-11 | ビーエーエスエフ ソシエタス・ヨーロピア | Nonionic emulsifiers for emulsion concentrates for spontaneous emulsification |
| TW201031743A (en) | 2008-12-18 | 2010-09-01 | Basf Se | Surfactant mixture comprising branched short-chain and branched long-chain components |
| WO2011003904A1 (en) | 2009-07-10 | 2011-01-13 | Basf Se | Surfactant mixture having short- and long-chained components |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2257642A1 (en) * | 1972-11-24 | 1974-06-20 | Basf Ag | BIODEGRADABLE DETERGENTS AND DETERGENTS |
| DE2448532A1 (en) * | 1973-10-15 | 1975-04-24 | Procter & Gamble | OIL REMOVAL COMPOSITIONS |
| PH14838A (en) * | 1974-03-21 | 1981-12-16 | Procter & Gamble | Detergent composition |
| FR2345513A1 (en) * | 1976-03-24 | 1977-10-21 | Rhone Poulenc Ind | TENSIO-ACTIVE COMPOSITION BASED ON NON-IONIC SURFACTANTS |
| GB2011944B (en) * | 1978-01-09 | 1982-06-09 | Unilever Ltd | Liquid detergent composition |
| GB8313348D0 (en) * | 1983-05-14 | 1983-06-22 | Procter & Gamble Ltd | Liquid detergent compositions |
| GB2145726A (en) * | 1983-08-26 | 1985-04-03 | Diversey Corp | Surface active agents |
| US4671895A (en) * | 1985-11-15 | 1987-06-09 | Colgate-Palmolive Company | Liquid detergent compositions |
| GB8609806D0 (en) * | 1986-04-22 | 1986-05-29 | Unilever Plc | Cleaning composition |
| US5076954A (en) * | 1986-05-21 | 1991-12-31 | Colgate-Palmolive Company | Stable microemulsion cleaning composition |
| DE3943070A1 (en) * | 1989-12-27 | 1991-07-04 | Henkel Kgaa | LIQUID CLEANER FOR HARD SURFACES |
| DE4025065A1 (en) * | 1990-08-08 | 1992-02-13 | Henkel Kgaa | LIQUID, POURABLE AND PUMPABLE SURFACTANT CONCENTRATE |
| ES2108040T3 (en) * | 1991-01-22 | 1997-12-16 | Procter & Gamble | COMPOSITION TO ELIMINATE CALCIUM CARBON CRUST. |
| AU3592993A (en) * | 1992-02-04 | 1993-09-01 | Henkel Corporation | Surfactant blends for detergent compositions |
-
1993
- 1993-07-07 EP EP93870125A patent/EP0616026A1/en not_active Withdrawn
-
1994
- 1994-03-14 CA CA 2158542 patent/CA2158542A1/en not_active Abandoned
- 1994-03-14 CN CN 94192052 patent/CN1122611A/en active Pending
- 1994-03-14 WO PCT/US1994/002747 patent/WO1994021767A1/en active Application Filing
- 1994-03-14 BR BR9406013A patent/BR9406013A/en not_active Application Discontinuation
- 1994-03-14 NZ NZ263393A patent/NZ263393A/en unknown
- 1994-03-14 JP JP6521160A patent/JPH08508765A/en active Pending
- 1994-03-14 AU AU64073/94A patent/AU6407394A/en not_active Abandoned
- 1994-03-17 MA MA23445A patent/MA23137A1/en unknown
-
1995
- 1995-09-15 NO NO953644A patent/NO953644L/en unknown
- 1995-09-18 FI FI954396A patent/FI954396A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0616026A1 (en) | 1994-09-21 |
| NO953644D0 (en) | 1995-09-15 |
| NZ263393A (en) | 1997-10-24 |
| NO953644L (en) | 1995-09-15 |
| WO1994021767A1 (en) | 1994-09-29 |
| JPH08508765A (en) | 1996-09-17 |
| FI954396A0 (en) | 1995-09-18 |
| CN1122611A (en) | 1996-05-15 |
| AU6407394A (en) | 1994-10-11 |
| FI954396A (en) | 1995-09-18 |
| MA23137A1 (en) | 1994-10-01 |
| BR9406013A (en) | 1996-01-02 |
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| EEER | Examination request | ||
| FZDE | Dead |