CA2167370C - Thickened hypochlorite detergent compositions with improved cleaning performance - Google Patents
Thickened hypochlorite detergent compositions with improved cleaning performance Download PDFInfo
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- CA2167370C CA2167370C CA002167370A CA2167370A CA2167370C CA 2167370 C CA2167370 C CA 2167370C CA 002167370 A CA002167370 A CA 002167370A CA 2167370 A CA2167370 A CA 2167370A CA 2167370 C CA2167370 C CA 2167370C
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- 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
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/2017—Monohydric alcohols branched
- C11D3/202—Monohydric alcohols branched fatty or with at least 8 carbon atoms in the alkyl chain
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/2017—Monohydric alcohols branched
-
- 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
- C11D3/395—Bleaching agents
- C11D3/3956—Liquid compositions
-
- 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
- C11D1/04—Carboxylic acids or salts thereof
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- 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
- C11D1/75—Amino oxides
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Detergent Compositions (AREA)
Abstract
The present invention is a thickened aqueous detergent composition. Said composition contains an alkali metal hypochlorite, an alkali metal salt of a fatty acid, a long chain amine oxide and a short chain surfactant to boost cleaning and a tertiary alcohol to restore viscosity.
Description
.... WO 95/03381 216 7 3 7 0 ~T~S94/07842 THICKENED HYPOCH:LORITE DETERGENT COMPOSITIONS WITH IMPROVED
CLEANING PERFORMANCE
Technical Field The present invention relates to thickened aqueous bleaching and cleaning compositions based on hypochlorite.
Background of the Invention Liquid compositions comprising hypochlorite bleach and the combination of long chain amine oxides and fatty acids as a thickening agent therein are well-known in the art.
It is desirable that such compositions should have good ' cleaning properties. However, long chain amine oxides do not provide the optimem cleaning effect. Therefore, it is a first object of the present invention to provide hypochlorite based bleaching compositions with improved cleaning.
WO 95/03381 216 l 3 7 ~ PCT/US94/07842 In response to this object, it has now been found that the incorporation of short chain surfactants is beneficial and meets this object thereby enhancing the cleaning performance. However, it has been observed that the incorporation of short chain surfactants in such compositions results in the reduction of the viscosity of said compositions. Yet, it is considered highly desirable that said compositions should be viscous so that the compositions adhere longer to vertical surfaces and surfaces which are inclined to the horizontal.
Therefore it is a further object of the present invention to provide a liquid composition which comprises a hypochlorite bleach and short chain surfactants, which retains viscosity.
In response to this object, the present invention proposes to formulate a liquid composition which comprises long chain amine oxides and fatty acids, further comprising short chain surfactants to boost cleaning and a long chain tertiary alcohol to restore viscosity.
A further advantage of the present invention is that the stability of the bleach is not affected by the tertiary alcohol which resists the oxidation of the hypochlorite.
Thickened bleaching compositions comprising long chain amine oxides and fully saturated fatty acids are well-known in the art.
US 4 282 109 discloses a thickened bleach composition comprising hypochlorite and linear and branched long chain C10-Clg amine oxides as thickeners. There is no mention of short chain C6-Cg amine oxides or tertiary alcohols.
EP 274 885 discloses thickened bleaching compositions comprising alkali metal hypochlorite and straight chain C14 amine oxide with a mixture of branched and straight chain ~_.._. T
.. WO 95/03381 C15 amine oxide and optionally fatty acids. There is no mention of short chain amine oxide or. tertiary alcohols.
EP 233 666 dig>closes a process for the manufacture of a thickened bleaching compositions comprising hypochlorite, a hypochlorite-soluble surfactant and an alkali metal salt of a fatty acid. The detergent actives include amine oxides, preferably laurylclimethylamine. There is no mention of tertiary alcohols.
DE 28 37 880 covers bleaching compositions comprising alkali metal hypochlorite and mixtures of branched and linear amine oxides of varying chain length, (C5-C1~~ for increased viscosity. The compositions optionally comprise fatty acids, but there is no disclosure of tertiary alcohols.
EP 30 401 covers thickened bleaching compositions comprising hypochlorite and a certain number of product characteristics including pH and viscosity. Mixtures of Cg-Ci8 amine oxides and fatty acids are preferred as thickening agents. There is no disclosure of tertiary alcohols.
Summary of the Invention The compositions according to the present invention are liquid bleaching .compositions having a viscosity of from 20cps to 200cps at a 50 r.p.m. shear rate and a pH greater than 12, comprising an alkali metal hypochlorite, a hypochlorite compatible long chain amine oxide and an alkali-metal salt of a fatty acid. Said composition further comprises a a hypochlorite compatible short chain surfactant for improved cleaning and a tertiary alcohol to restore viscosity.
The long chain amine oxides suitable include amine oxides according t:o the formula RiR2R3N0, wherein R1 is a C10-Cig alkyl group and R2 and R3 are independently C1 to C3 i 6 ~ 3 7 0 pCT~S94/07842 alkyl groups and 'wherein the ratio of said long chain amine oxide to short chain surfactants is from 4:1 to 1.5:1. The tertiary alcohol is selected from R~RBRgCOH, wherein R~ is a C4-Cg alkyl group, Rg and Rg are C1-C3 alkyl groups and total number of carbon atoms is from 8 to 12.
All ratios, percentages and parts given herein are by %
weight of the total composition unless otherwise specified.
eta' ed Description of the Invention The liquid detergent composition according to the present invention comprises an alkali metal hypochlorite, an alkali metal salt of a fatty acid and a hypochlorite compatible long c)zain amine oxide. The cleaning ability of said composition Ihas been improved by the addition of a a hypochlorite compatible short chain surfactant and the viscosity is restored by the addition of a Cg-C12 tertiary alcohol.
Thus an essential ingredient for use herein is a hypochlorite bleaching agent, preferably an alkali metal hypochlorite. Although alkali metal hypochlorites are preferred other hypochlorite compounds may also be used herein and can be selected from calcium and magnesium hypochlorite. Prel:erred alkali metal hypochlorite for use herein is sodium h,ypochlorite. Compositions according to the present invention .comprise said hypochlorite bleaching agents such that the content of active chlorine in the compositions is from 0.4% to 4%, preferably from 1% to 2%.
Another essential component according to the present invention is the combination of a hypochlorite compatible long chain amine oxide and a fatty acid. Said combination is used as a thickening aid.
Suitable long chain amine oxides for use herein may be chosen from amine oxides according to the formula R1R2R3N0, WO 95/03381 ~ PCT/US94/07842 wherein R1 is a Clp-Clg alkyl group, preferably Clp to C14 and R2 and R3 are independently C1 to C3 alkyl groups and mixtures thereof.
Preferred long chain amine oxides for use herein are be GenaminoxR LA, (a.vailable from Hoechst) and C12-C14 AromoxR
DMMCO-W (AKZO). According to the present invention, said compositions may ~~omprise from 0.6% to 3% of said long chain amine oxides.
Suitable fatty acids for use herein are alkali metal salt of a Cg-C1~; fatty acid. Suitable fatty acids can be any Cg-Clg fatty acids, preferably fully saturated fatty acids preferably a sodium, potassium or lithium salt, more preferably the sodium salt. Fatty acids for use herein may be selected from caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid and mixtures of fatty acids suitably hardened, derived from natural sources such as tallow, coconut oil, ground oil and babassu oil.
Fatty acids according to the present invention may comprise from 0.2% to 2% by weight of the total composition.
It has been found that the cleaning performance of the composition according to the present invention can be boosted by the incorporation of hypochlorite compatible short chain surfactants.
The compositions according to the present invention comprise a hypoch:lorite compatible short chain surfactant, or mixtures thereof. All surfactants have in common that they comprise a hydrophobic portion and a hydrophilic portion. By short chain surfactant, it is meant herein surfactants which comprise a C6-Clp alkyl chain as their hydrophobic portion.
Such short chain surfactants are accordingly those conventionally used in this field, but with a shorter alkyl chain, and can beg of any type. Accordingly, suitable short chain surfactant:: for use herein include C6-Clp alkyl sulfates (C6-C1oS04) , alkyl ether sulfates (C6-Clo (OCHzCH2) eS04) , alkyl sulphonatf~s (C6-C1oS03) , alkyl succinates (C6-C1o00CCHzCH2COOZ) , alkyl carboxylates (C6-C1oC00M) , alkyl ether carboxylates (C6-Clo (OCHzCH2) eCOOM) , alkyl sarcosinates (C6-CIOCON (CH3) R) , alky:l sulpho succinates (C6-C1o00CCH (S03M) CH2COOZ) , amine oxides (C6-C;loRR'NO) and betaines (C6-CloN' (CH3) 2CHZC00-) .
In the formulae in brackets, a and p are independently from 0 to 20, 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 and R' are C1-CS alkyl groups, possibly functionalized with hydroxyl groups, R and R' are preferably C1-C3, most preferably methyl. 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.
Preferred nonionic surfactants are amine oxides. Suitable short chain amine oxides for use herein may be selected from amine oxides according to the formulae RzR3R4N0, wherein R4 is a C6-CB alkyl group, and RZ and R3 are independently Cl to C3 alkyl groups, and mixtures thereof.
Preferred short chain anionic surfactants for use herein are C6-Clo alkyl sulfates (C6-C1oS04) and alkyl sulphonates (C6-C1oS03) .
Most preferred are: the C6-Ce alkyl sulfates and sulphonates .
Such short chain anionic surfactants can be made by well known sulphation or sulphonation processes followed by neutralization, but said anionic sizort chain surfactants are more conveniently commercially available, for instance from Rhone Poulenc under the trade mark Rhodapon OLS, or from Witco under the trade mark Witconate.
_ WO 95/03381 216 7 3 7 0 pCT~S94/07842 Preferred short chain surfactants for use herein are dimethyloctylamine oxide, dimethylhexylamine oxide and octyl sulphate. Suitable: short chain surfactants for use herein are preferably hypoch:Lorite compatible. According to the present invention, the compositions comprise from 0.5% to 2%
preferably from l~c to 1.5% of short chain surfactants.
The compositions according to the present invention comprise said long chain amine oxides and said short chain surfactants in the ratio of from 4:1 to 1:1, preferably 2:1 to 1:1 more preferably 1.5:1 to 1:1.
The incorporation of short chain surfactants in the compositions according to the present invention results in the decrease of said compositions viscosity. It has been found that the vi:acosity of the compositions can be restored by the addition of a tertiary alcohol.
Suitable tertiary alcohols for use herein can be selected from alcohols according to the formula, R~RgRgCOH , wherein R~ is C4-~Cg, preferably C6-Cg, Rg and Rg are C1-Cg preferably methyl groups. The present invention comprises a viscosity restoring amount of tertiary alcohols. The compositions may comprise from 0.05% to 1%, preferably from 0.05% to 0.8%, more preferably from 0.05% to 0.5% of said tertiary alcohol. Suitable tertiary alcohols for use herein are those having from 8 to 12 carbon atoms, preferably dimethylhexylcarbi.nol and dimethyloctyl carbinol.
The compositions according to the present invention comprise said tertiary alcohols and said short chain surfactants in the ratio of from 0.04 to 1, preferably from 0.2 to 0.6.
The tertiary alcohols of the present invention thicken the compositions to a viscosity of from 2ocps to 20ocps, preferably from 20cps to 150cps measured with a Brookfield i WO 95/03381 7 ~ PCT/US94/07842 viscosimeter RVT at a temperature of 25°C, using a number 3 spindle at 50 r.p.m.
Another essential requirement of the compositions according to the present invention is that the pH is greater than 12, preferably greater than 12.5, more preferably greater than 12.8.
This is achieved by the addition of from 0.5$ to 2$ of a caustic alkali. Suitable caustic alkalis for use herein include sodium and potassium hydroxide.
The compositions according to the present invention may further comprise as an optional ingredient other long chain surface active agents. Suitable long chain surface actives include alkyl sarcosinates, alkyl ether sulphates and paraffin sulphonates.
The compositions according to the present invention may also comprise a number of additional ingredients such as hypochlorite soluble and stable colourants and perfumes, and hydrotopes such as sodium xylene sulphonate.
The compositions according to the present invention are prepared by methods well-known in the art such as the methods described in GB 1 329 086.
The compositions of the present invention may be used for a variety of bleaching purposes such as bleaching hard surfaces whereby said compositions thickened nature results in longer adhesion to vertical or inclined surfaces than non-thickened bleaching compositions.
The compositions according to the present invention can be illustrated by the following examples.
SUBSTITUTE SHEET (RULE 26~
... T. . , Examples CONSTITUENTS I II III IV V VI
C12 amine oxide 1.8 1.8 1.8 1.8 1.8 1.8 coconut fatty acid 0.8 0.8 0.8 0.8 0.8 -sodium hypochlorite 1 1.1 1 1 1.1 1 octyl dimethyl amine 0.4 0.4 0.4 0.4 - -oxide octyl sulfate - - - - 1.2 1.2 sodium hydroxide 0.8 0.8 0.8 0.8 0.8 0.8 perfume 0.2 0.2 0.2 0.2 0.2 0.2 dimethyl n-octyl carbir..ol0.2 0.05 0.1 0.2 - -dimethyl n-hexyl carbir.,ol- - - - 0.1 0.20 water and minors -------------balance---------------------viscosity, cps 100 50 70 80 100 130 ~BSTI'NTE SHEET (RULE 26~
CLEANING PERFORMANCE
Technical Field The present invention relates to thickened aqueous bleaching and cleaning compositions based on hypochlorite.
Background of the Invention Liquid compositions comprising hypochlorite bleach and the combination of long chain amine oxides and fatty acids as a thickening agent therein are well-known in the art.
It is desirable that such compositions should have good ' cleaning properties. However, long chain amine oxides do not provide the optimem cleaning effect. Therefore, it is a first object of the present invention to provide hypochlorite based bleaching compositions with improved cleaning.
WO 95/03381 216 l 3 7 ~ PCT/US94/07842 In response to this object, it has now been found that the incorporation of short chain surfactants is beneficial and meets this object thereby enhancing the cleaning performance. However, it has been observed that the incorporation of short chain surfactants in such compositions results in the reduction of the viscosity of said compositions. Yet, it is considered highly desirable that said compositions should be viscous so that the compositions adhere longer to vertical surfaces and surfaces which are inclined to the horizontal.
Therefore it is a further object of the present invention to provide a liquid composition which comprises a hypochlorite bleach and short chain surfactants, which retains viscosity.
In response to this object, the present invention proposes to formulate a liquid composition which comprises long chain amine oxides and fatty acids, further comprising short chain surfactants to boost cleaning and a long chain tertiary alcohol to restore viscosity.
A further advantage of the present invention is that the stability of the bleach is not affected by the tertiary alcohol which resists the oxidation of the hypochlorite.
Thickened bleaching compositions comprising long chain amine oxides and fully saturated fatty acids are well-known in the art.
US 4 282 109 discloses a thickened bleach composition comprising hypochlorite and linear and branched long chain C10-Clg amine oxides as thickeners. There is no mention of short chain C6-Cg amine oxides or tertiary alcohols.
EP 274 885 discloses thickened bleaching compositions comprising alkali metal hypochlorite and straight chain C14 amine oxide with a mixture of branched and straight chain ~_.._. T
.. WO 95/03381 C15 amine oxide and optionally fatty acids. There is no mention of short chain amine oxide or. tertiary alcohols.
EP 233 666 dig>closes a process for the manufacture of a thickened bleaching compositions comprising hypochlorite, a hypochlorite-soluble surfactant and an alkali metal salt of a fatty acid. The detergent actives include amine oxides, preferably laurylclimethylamine. There is no mention of tertiary alcohols.
DE 28 37 880 covers bleaching compositions comprising alkali metal hypochlorite and mixtures of branched and linear amine oxides of varying chain length, (C5-C1~~ for increased viscosity. The compositions optionally comprise fatty acids, but there is no disclosure of tertiary alcohols.
EP 30 401 covers thickened bleaching compositions comprising hypochlorite and a certain number of product characteristics including pH and viscosity. Mixtures of Cg-Ci8 amine oxides and fatty acids are preferred as thickening agents. There is no disclosure of tertiary alcohols.
Summary of the Invention The compositions according to the present invention are liquid bleaching .compositions having a viscosity of from 20cps to 200cps at a 50 r.p.m. shear rate and a pH greater than 12, comprising an alkali metal hypochlorite, a hypochlorite compatible long chain amine oxide and an alkali-metal salt of a fatty acid. Said composition further comprises a a hypochlorite compatible short chain surfactant for improved cleaning and a tertiary alcohol to restore viscosity.
The long chain amine oxides suitable include amine oxides according t:o the formula RiR2R3N0, wherein R1 is a C10-Cig alkyl group and R2 and R3 are independently C1 to C3 i 6 ~ 3 7 0 pCT~S94/07842 alkyl groups and 'wherein the ratio of said long chain amine oxide to short chain surfactants is from 4:1 to 1.5:1. The tertiary alcohol is selected from R~RBRgCOH, wherein R~ is a C4-Cg alkyl group, Rg and Rg are C1-C3 alkyl groups and total number of carbon atoms is from 8 to 12.
All ratios, percentages and parts given herein are by %
weight of the total composition unless otherwise specified.
eta' ed Description of the Invention The liquid detergent composition according to the present invention comprises an alkali metal hypochlorite, an alkali metal salt of a fatty acid and a hypochlorite compatible long c)zain amine oxide. The cleaning ability of said composition Ihas been improved by the addition of a a hypochlorite compatible short chain surfactant and the viscosity is restored by the addition of a Cg-C12 tertiary alcohol.
Thus an essential ingredient for use herein is a hypochlorite bleaching agent, preferably an alkali metal hypochlorite. Although alkali metal hypochlorites are preferred other hypochlorite compounds may also be used herein and can be selected from calcium and magnesium hypochlorite. Prel:erred alkali metal hypochlorite for use herein is sodium h,ypochlorite. Compositions according to the present invention .comprise said hypochlorite bleaching agents such that the content of active chlorine in the compositions is from 0.4% to 4%, preferably from 1% to 2%.
Another essential component according to the present invention is the combination of a hypochlorite compatible long chain amine oxide and a fatty acid. Said combination is used as a thickening aid.
Suitable long chain amine oxides for use herein may be chosen from amine oxides according to the formula R1R2R3N0, WO 95/03381 ~ PCT/US94/07842 wherein R1 is a Clp-Clg alkyl group, preferably Clp to C14 and R2 and R3 are independently C1 to C3 alkyl groups and mixtures thereof.
Preferred long chain amine oxides for use herein are be GenaminoxR LA, (a.vailable from Hoechst) and C12-C14 AromoxR
DMMCO-W (AKZO). According to the present invention, said compositions may ~~omprise from 0.6% to 3% of said long chain amine oxides.
Suitable fatty acids for use herein are alkali metal salt of a Cg-C1~; fatty acid. Suitable fatty acids can be any Cg-Clg fatty acids, preferably fully saturated fatty acids preferably a sodium, potassium or lithium salt, more preferably the sodium salt. Fatty acids for use herein may be selected from caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid and mixtures of fatty acids suitably hardened, derived from natural sources such as tallow, coconut oil, ground oil and babassu oil.
Fatty acids according to the present invention may comprise from 0.2% to 2% by weight of the total composition.
It has been found that the cleaning performance of the composition according to the present invention can be boosted by the incorporation of hypochlorite compatible short chain surfactants.
The compositions according to the present invention comprise a hypoch:lorite compatible short chain surfactant, or mixtures thereof. All surfactants have in common that they comprise a hydrophobic portion and a hydrophilic portion. By short chain surfactant, it is meant herein surfactants which comprise a C6-Clp alkyl chain as their hydrophobic portion.
Such short chain surfactants are accordingly those conventionally used in this field, but with a shorter alkyl chain, and can beg of any type. Accordingly, suitable short chain surfactant:: for use herein include C6-Clp alkyl sulfates (C6-C1oS04) , alkyl ether sulfates (C6-Clo (OCHzCH2) eS04) , alkyl sulphonatf~s (C6-C1oS03) , alkyl succinates (C6-C1o00CCHzCH2COOZ) , alkyl carboxylates (C6-C1oC00M) , alkyl ether carboxylates (C6-Clo (OCHzCH2) eCOOM) , alkyl sarcosinates (C6-CIOCON (CH3) R) , alky:l sulpho succinates (C6-C1o00CCH (S03M) CH2COOZ) , amine oxides (C6-C;loRR'NO) and betaines (C6-CloN' (CH3) 2CHZC00-) .
In the formulae in brackets, a and p are independently from 0 to 20, 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 and R' are C1-CS alkyl groups, possibly functionalized with hydroxyl groups, R and R' are preferably C1-C3, most preferably methyl. 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.
Preferred nonionic surfactants are amine oxides. Suitable short chain amine oxides for use herein may be selected from amine oxides according to the formulae RzR3R4N0, wherein R4 is a C6-CB alkyl group, and RZ and R3 are independently Cl to C3 alkyl groups, and mixtures thereof.
Preferred short chain anionic surfactants for use herein are C6-Clo alkyl sulfates (C6-C1oS04) and alkyl sulphonates (C6-C1oS03) .
Most preferred are: the C6-Ce alkyl sulfates and sulphonates .
Such short chain anionic surfactants can be made by well known sulphation or sulphonation processes followed by neutralization, but said anionic sizort chain surfactants are more conveniently commercially available, for instance from Rhone Poulenc under the trade mark Rhodapon OLS, or from Witco under the trade mark Witconate.
_ WO 95/03381 216 7 3 7 0 pCT~S94/07842 Preferred short chain surfactants for use herein are dimethyloctylamine oxide, dimethylhexylamine oxide and octyl sulphate. Suitable: short chain surfactants for use herein are preferably hypoch:Lorite compatible. According to the present invention, the compositions comprise from 0.5% to 2%
preferably from l~c to 1.5% of short chain surfactants.
The compositions according to the present invention comprise said long chain amine oxides and said short chain surfactants in the ratio of from 4:1 to 1:1, preferably 2:1 to 1:1 more preferably 1.5:1 to 1:1.
The incorporation of short chain surfactants in the compositions according to the present invention results in the decrease of said compositions viscosity. It has been found that the vi:acosity of the compositions can be restored by the addition of a tertiary alcohol.
Suitable tertiary alcohols for use herein can be selected from alcohols according to the formula, R~RgRgCOH , wherein R~ is C4-~Cg, preferably C6-Cg, Rg and Rg are C1-Cg preferably methyl groups. The present invention comprises a viscosity restoring amount of tertiary alcohols. The compositions may comprise from 0.05% to 1%, preferably from 0.05% to 0.8%, more preferably from 0.05% to 0.5% of said tertiary alcohol. Suitable tertiary alcohols for use herein are those having from 8 to 12 carbon atoms, preferably dimethylhexylcarbi.nol and dimethyloctyl carbinol.
The compositions according to the present invention comprise said tertiary alcohols and said short chain surfactants in the ratio of from 0.04 to 1, preferably from 0.2 to 0.6.
The tertiary alcohols of the present invention thicken the compositions to a viscosity of from 2ocps to 20ocps, preferably from 20cps to 150cps measured with a Brookfield i WO 95/03381 7 ~ PCT/US94/07842 viscosimeter RVT at a temperature of 25°C, using a number 3 spindle at 50 r.p.m.
Another essential requirement of the compositions according to the present invention is that the pH is greater than 12, preferably greater than 12.5, more preferably greater than 12.8.
This is achieved by the addition of from 0.5$ to 2$ of a caustic alkali. Suitable caustic alkalis for use herein include sodium and potassium hydroxide.
The compositions according to the present invention may further comprise as an optional ingredient other long chain surface active agents. Suitable long chain surface actives include alkyl sarcosinates, alkyl ether sulphates and paraffin sulphonates.
The compositions according to the present invention may also comprise a number of additional ingredients such as hypochlorite soluble and stable colourants and perfumes, and hydrotopes such as sodium xylene sulphonate.
The compositions according to the present invention are prepared by methods well-known in the art such as the methods described in GB 1 329 086.
The compositions of the present invention may be used for a variety of bleaching purposes such as bleaching hard surfaces whereby said compositions thickened nature results in longer adhesion to vertical or inclined surfaces than non-thickened bleaching compositions.
The compositions according to the present invention can be illustrated by the following examples.
SUBSTITUTE SHEET (RULE 26~
... T. . , Examples CONSTITUENTS I II III IV V VI
C12 amine oxide 1.8 1.8 1.8 1.8 1.8 1.8 coconut fatty acid 0.8 0.8 0.8 0.8 0.8 -sodium hypochlorite 1 1.1 1 1 1.1 1 octyl dimethyl amine 0.4 0.4 0.4 0.4 - -oxide octyl sulfate - - - - 1.2 1.2 sodium hydroxide 0.8 0.8 0.8 0.8 0.8 0.8 perfume 0.2 0.2 0.2 0.2 0.2 0.2 dimethyl n-octyl carbir..ol0.2 0.05 0.1 0.2 - -dimethyl n-hexyl carbir.,ol- - - - 0.1 0.20 water and minors -------------balance---------------------viscosity, cps 100 50 70 80 100 130 ~BSTI'NTE SHEET (RULE 26~
Claims (10)
1. An aqueous detergent composition having a viscosity of from 20cps to 200cps, at a 50r.p.m shear rate and a pH greater than 12, comprising an alkali metal hypochlorite, a hypochlorite compatible long chain amine oxide according to the formula R1R2R3NO, wherein R1 is a C10-C18 alkyl group and R2 and R3 are independently C1 to C3 alkyl groups and an alkali-metal salt of a C8-C18 fatty acid characterized in that said composition further comprises a hypochlorite compatible short chain surfactant comprising a hydrophobic and a hydrophilic portion, wherein the chain length of said hydrophobic portion is C6-C10 and wherein the ratio of said long chain amine oxides to short chain surfactants is from 4:1 to 1.5:1, and a viscosity restoring amount of a tertiary alcohol according to the formula R7R8R9COH, wherein R7 is a C4-C9 alkyl group, R8 and R9 are C1-C3 alkyl groups said tertiary alcohol having a total of from 8 to 12 carbon atoms and mixtures thereof.
2. An aqueous detergent composition according to claim 1, wherein said ratio of long chain amine oxides to short chain surfactants is from 1.5 to 1.
3. An aqueous detergent composition according to claim 1, comprising from 0.5% to 2% of said short chain surfactants.
4. An aqueous detergent composition according to claim 1, wherein said short chain surfactant is selected from dimethyloctyl amine oxide, dimethylhexyl amine oxide and octyl sulphate.
5. An aqueous detergent composition according to claim 1, comprising from 0.05% to 1 % of said tertiary alcohols.
6. An aqueous detergent composition according to claim 1, wherein said tertiary alcohols are selected from the group consisting of dimethylhexyl carbinol, dimethyloctyl carbinol, and mixtures thereof.
7. An aqueous detergent composition according to claim 1, having a viscosity of from 20cps to 150cps.
8. An aqueous detergent composition according to claim 1, comprising from 0.5% to 3% of said alkali metal hypochlorite.
9. An aqueous detergent composition according to claim 1, having a pH
greater than 12.5.
greater than 12.5.
10. An aqueous detergent composition according to claim 1, wherein the ratio of said tertiary alcohol to said short chain surfactant is from 0.04:1 to 0.2:0.6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP93202187A EP0635568A1 (en) | 1993-07-23 | 1993-07-23 | Thickened hypochlorite detergent compositions with improved cleaning performance |
| EP93202187.6 | 1993-07-23 | ||
| PCT/US1994/007842 WO1995003381A1 (en) | 1993-07-23 | 1994-07-13 | Thickened hypochlorite detergent compositions with improved cleaning performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2167370A1 CA2167370A1 (en) | 1995-02-02 |
| CA2167370C true CA2167370C (en) | 2000-01-18 |
Family
ID=8214005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002167370A Expired - Fee Related CA2167370C (en) | 1993-07-23 | 1994-07-13 | Thickened hypochlorite detergent compositions with improved cleaning performance |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0635568A1 (en) |
| JP (1) | JPH09502747A (en) |
| AU (1) | AU7360894A (en) |
| CA (1) | CA2167370C (en) |
| WO (1) | WO1995003381A1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0651051A3 (en) * | 1993-10-29 | 1996-02-28 | Clorox Co | Gelled hypochlorite-based cleaner. |
| GB2292562A (en) * | 1994-07-13 | 1996-02-28 | Procter & Gamble | Liquid Detergent Compositions |
| DE19621048C2 (en) * | 1996-05-24 | 2000-06-21 | Henkel Kgaa | Aqueous bleach and disinfectant |
| US5972866A (en) * | 1997-02-05 | 1999-10-26 | Ecolab, Inc. | Thickened noncorrosive cleaner |
| US6534465B1 (en) | 1998-09-16 | 2003-03-18 | The Procter & Gamble Company | Bleaching compositions |
| EP0987313A1 (en) * | 1998-09-16 | 2000-03-22 | The Procter & Gamble Company | Bleaching compositions |
| JP5336160B2 (en) * | 2008-12-11 | 2013-11-06 | 花王株式会社 | Antibacterial composition |
| JP5512994B2 (en) * | 2009-03-31 | 2014-06-04 | 花王株式会社 | Liquid bleach composition |
| JP5467788B2 (en) * | 2009-03-31 | 2014-04-09 | 花王株式会社 | Liquid bleach composition |
| JP6013721B2 (en) * | 2010-12-27 | 2016-10-25 | 花王株式会社 | Liquid detergent composition for food processing equipment and / or cooking equipment |
| JP5837460B2 (en) * | 2012-06-27 | 2015-12-24 | 花王株式会社 | Foam cleaning method |
| US10208273B2 (en) | 2012-09-10 | 2019-02-19 | The Clorox Company | Drain formulation for enhanced hair dissolution |
| US9487742B2 (en) | 2012-09-10 | 2016-11-08 | The Clorox Company | Drain formulation for enhanced hair dissolution |
| WO2016200343A1 (en) * | 2015-06-09 | 2016-12-15 | Hayat Kimya Sanayi Anonim Sirketi | Aqueous, thickened and transparent bleaching compositions |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2003522B (en) * | 1977-09-02 | 1982-02-24 | Ici Ltd | Bleaching and cleaning compositions |
| US4229313A (en) * | 1977-09-02 | 1980-10-21 | Imperial Chemical Industries Limited | Alkali metal hypochlorite bleaching and cleaning compositions thickened with branch chain amine oxides |
| GB2051162A (en) * | 1979-05-30 | 1981-01-14 | Reckitt & Colmann Prod Ltd | Thickened aqueous alkali metal hypochlorite solutions |
| US4552680A (en) * | 1983-11-04 | 1985-11-12 | The Procter & Gamble Company | Hypochlorite bleach containing surfactant and organic antifoamant |
| US4790953A (en) * | 1984-12-28 | 1988-12-13 | The Proctor & Gamble Company | Liquid hypochlorite bleach containing optical brightener solubilized by amine oxide |
| DE3767603D1 (en) * | 1986-08-07 | 1991-02-28 | Clorox Co | THICKENED HYPOCHLORITE COMPOSITION AND THEIR USE. |
| US4789495A (en) * | 1987-05-18 | 1988-12-06 | The Drackett Company | Hypochlorite compositions containing a tertiary alcohol |
| US4986926A (en) * | 1989-04-10 | 1991-01-22 | The Drackett Company | Thickened alkali metal hypochlorite compositions |
-
1993
- 1993-07-23 EP EP93202187A patent/EP0635568A1/en not_active Withdrawn
-
1994
- 1994-07-13 JP JP7505197A patent/JPH09502747A/en active Pending
- 1994-07-13 CA CA002167370A patent/CA2167370C/en not_active Expired - Fee Related
- 1994-07-13 AU AU73608/94A patent/AU7360894A/en not_active Abandoned
- 1994-07-13 WO PCT/US1994/007842 patent/WO1995003381A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CA2167370A1 (en) | 1995-02-02 |
| JPH09502747A (en) | 1997-03-18 |
| EP0635568A1 (en) | 1995-01-25 |
| AU7360894A (en) | 1995-02-20 |
| WO1995003381A1 (en) | 1995-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |