AU7448591A - Creación de Inventos y Patentes con Inteligencia Artificial

AU7448591A – Perfumed aqueous liquid bleaching composition
– Google Patents

AU7448591A – Perfumed aqueous liquid bleaching composition
– Google Patents
Perfumed aqueous liquid bleaching composition

Info

Publication number
AU7448591A

AU7448591A
AU74485/91A
AU7448591A
AU7448591A
AU 7448591 A
AU7448591 A
AU 7448591A
AU 74485/91 A
AU74485/91 A
AU 74485/91A
AU 7448591 A
AU7448591 A
AU 7448591A
AU 7448591 A
AU7448591 A
AU 7448591A
Authority
AU
Australia
Prior art keywords
composition
carbon atoms
soap
solution according
iii
Prior art date
1990-03-15
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.)

Granted

Application number
AU74485/91A
Other versions

AU661269B2
(en

Inventor
Christophe Joyeux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Unilever PLC

Original Assignee
Unilever PLC
Priority date (The priority date 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 date listed.)
1990-03-15
Filing date
1991-03-15
Publication date
1991-10-10
Family has litigation

First worldwide family litigation filed
litigation
Critical
https://patents.darts-ip.com/?family=10672693&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU7448591(A)
«Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1991-03-15
Application filed by Unilever PLC
filed
Critical
Unilever PLC

1991-10-10
Publication of AU7448591A
publication
Critical
patent/AU7448591A/en

1995-07-20
Application granted
granted
Critical

1995-07-20
Publication of AU661269B2
publication
Critical
patent/AU661269B2/en

2011-03-15
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

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

C11D3/395—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

C11D1/37—Mixtures of compounds all of which are anionic

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

C11D10/00—Compositions of detergents, not provided for by one single preceding group

C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap

C11D10/042—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on anionic surface-active compounds and soap

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

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

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

C11D1/75—Amino oxides

Description

BLEACHING COMPOSITION
This invention relates to hypochlorite-based aqueous liquid bleaching compositions.
It is well known to include both hypochlorite bleach and surfactant in the same compositions.
We have now found that useful properties, in
particular useful combinations of properties, can be obtained using a mixture of specified anionic
surfactants.
We have found that including alkyl ether sulphate and/or soap in surfactants present enhances the ability of the composition. to dissolve perfume. Of course the incorporation of perfume is generally desired for
compositions intended for domestic use. We have also found that incorporation of some alkyl ether sulphate can improve the ability of the composition to remove a number of stains.
According to this invention there is provided a perfumed aqueous liquid solution of alkali metal
hypochlorite, also containing a surfactant mixture comprising
(i) an alkane sulphonate of formula R-SO3M in which R is an alkyl group with 8 to 22 carbon atoms and either

(ii) an alkyl ether sulphate of formula
R1-(OC2H4)n SO4M in which R1 is an alkyl group with 8 to 20 carbon atoms and n has a value in the range from 0.5 to 12, and/or
(iii) soap of formula R2CO2M where R2 is an alkyl or alkenyl group of 7 to 19 carbon atoms,
each M denoting a solubilising cation;
the amounts of the said surfactants, by weight based on the whole composition, being
i) alkane sulphonate 1 to 10% ii) alkyl ether sulphate 0 to 3% iii) soap 0 to 3% but the total of (ii) and (iii) being 0.1 to 4%, the amount of amine oxide (if any) in the composition being less than half the content of other surfactants.
Commercial supplies of alkali metal hypochlorite solution contain varying amounts of sodium chloride. We prefer to use hypochlorite solution which has a fairly low content of sodium chloride. We have then found it possible to prepare compositions which contain a
substantial proportion of surfactant.
One category of surfactant which has been used extensively for (thickened) hypochlorite compositions is the amine oxides. The use of these is discussed in our UK patent 1329086 which explains that the amine oxides can function like a hydrotrope (although they are normally regarded as surfactants). We have found it unnecessary to include amine oxide or hydrotrope. It is

a feature of this invention that the proportion by weight of any amine oxide is less than half the amount of other surfactant. Preferably amine oxide is entirely absent. It is also preferred that compositions of the invention are devoid of hydrotropes such as urea, alcohols with up to four carbon atoms, or short chain alkylaryl
sulphonates, e.g. with no more than four carbon atoms in the alkyl group(s). If any such hydrotrope is present, the proportion by weight of it may be less than the amount of surfactants (other than amine oxide, if any) present, better less than half the amount of surfactants other than amine oxide. In any case, it is desirable to exclude urea and primary or secondary alcohols because these are not stable in the presence of hypochlorite.
The alkane sulphonate used in this invention has the formula:
R – SO3 M
where R is an alkyl group of 8 to 22. Preferably R has 12 to 22, carbon atoms and the solubilising cation M is preferably alkali metal. Preferably R is a secondary alkyl group. It may be branched but preferably is unbranched.
The amount of the alkane sulphonate lies in the range from 1 to 10% by weight of the composition. The amount may possibly be not more than 8%, e.g. 2% to 6%.
Alkyl ether sulphate useful in this invention has the formula:
R1 – (OC2H4)n OSO3M

where M is a solubilising cation, especially alkali metal, R1 is an alkyl group of 8 to 20, preferably 10 to
16, carbon atoms and n has an average value in the range from 0.5 to 12, better 1 to 6, even better 2 to 5. R1 may be primary or secondary, and preferably is
unbranched.
Soap useful in this invention has the formula:
R2 CO2 M
where M is a solubilising cation, especially alkali metal and R2 is an alkyl group of 7 to 19, preferably 9 to 15, carbon atoms. Olefinic unsaturation should desirably be absent, for the sake of stability in the presence of hypochlorite.
The total amount of soap and alkyl ether sulphate lies in the range from 0.1, preferably 0.2, to 4% by weight of the composition. If alkyl ether sulphate is present, the amount will generally be at least 0.1% by weight. Similarly, if soap is present, the amount will generally be at least 0.1%. The weight ratio of alkane sulphonate to the total of alkyl ether sulphate and soap is preferably from 1:1 to 10:1 better 2:1 to 6:1.
R, R1 and R2 can, but do not need to be, the same, but preferably R1 and R2CO2 both have an average carbon chain length of 10 to 16 carbon atoms and may be
predominantly of 12 carbon length.
The hypochlorite is desirably included in a quantity to provide from 0.1 to 8%, better 0.5 to 3% or 5% of available chlorine, by weight based on the whole

composition. It is desirable to use hypochlorite in which the amount of available chlorine is at least twice the amount of any sodium chloride present. One supplier o’f suitable hypochlorite is Tahn and Mulhouse.
The composition will generally be alkaline. For this purpose alkali metal hydroxide may be included in a quantity between 0.1 and 1.5% by weight of the
composition.
The amount of perfume dissolved in the composition, made soluble by the presence of alkyl ether sulphate and/or soap may lie in the range from 0.1 to 1.0% by weight of the composition. Preferably the amount of perfume is up to 0.6 or 0.7%.
A preferred composition according to this invention may have constituents and quantities as set out below.
Preferred Percentage of Active Matter
Secondary alkane
sulphonate 1 to 6%
Alkyl ether sulphate 0.2 to 2%
Soap 0.2 to 2%
Alkali metal hypochlorite 0.5 to 2%
(expressed as available chlorine)
Sodium chloride less than 1%, and also less than half the weight of available
chlorine
Sodium hydroxide 0.2 to 1.0%
Perfume 0.1 to 0.6%
Water balance to 100%

Various other constituents are possible. Notable is 0.1 to 0.5% of alkali metal silicate. The pH of the composition is, suitably, greater than 11. This will give a lesser alkaline pH on dilution, especially when dilution is with hard tap water.
The invention is illustrated by the following
Examples in which percentages are by weight based on the whole composition unless otherwise stated. Example 1
A number of compositions were prepared using the following constituents:
Secondary alkane sulphonate (SAS)
with average 16-18 carbon atoms
Linear alkyl ether sulphate (LES)
in which the alkyl group has
average 12-13 carbon atoms and
the average degree of
ethoxylation is 3
Laurie soap
Sodium hydroxide
Perfume
A sodium hypochlorite solution which had the following characteristics as supplied:
Available chlorine over 315 g/litre NaOH 10-20 g/litre
Specific gravity 1-315 to 1-320
NaCl 80 to 120 g/litre

The various compositions were made up in distilled water. All compositions contained sufficient
hypochlorite to yield 1% available chlorine. It was noted whether the compositions were cloudy or clear. Compositions and results are set out in the following Tables 1 and 2:

Comparison of compositions 2, 3 and 4 show that increasing the amount of SAS from 2.0 to 2.8% was not sufficient to render the perfume soluble but addition of 0.26% soap did bring about solution of the perfume.
Composition 12 shows that addition of 0.26% LES also brought about solution of the perfume. Compositions 5, 6 and 7 show the same effect at higher concentrations.
Increasing the SAS level to 2.0 to 3.9% was not enough to bring about solution of 0.3% perfume but addition of 0.58% soap did cause the perfume to dissolve.
The solubility of perfume is low when sodium
hydroxide has been added as shown by composition 1.
Comparison of compositions 8 and 9 shows that increasing the level of SAS to 5% was not enough to bring about the solution of perfume. Comparison also with compositions 10 and 11 shows that addition of 0.5% LES or 0.5% soap did dissolve the perfume.
Example 2
A number of compositions were prepared using the same constituents as in Example 1, although in addition all compositions included 0.2% sodium silicate.
Compositions and results are set out in the following Table 3.

Compositions 15, 16, 18 and 20 demonstrate that soap and LES can be used together to bring about the
solubilisation of perfume.
Example 3
Compositions were prepared using the same materials as in Example 1, without sodium silicate, and with the amounts of the materials as set out in the following Table 4.

All of these compositions were clear solutions. Example 4
Compositions were prepared in distilled water using the same materials as in Example 1 without sodium silicate, and with the amounts of the materials as set

out in the following Table 5.

The compositions were used to remove various stains by a standard procedure. 1 ml of the composition was applied to a plastic tile bearing the stain. The tile was rubbed with the composition 200 times, using a machine to rub the tile. Each composition was used to clean three tiles bearing each stain. After the tiles had been cleaned in this way the effectiveness of cleaning was assessed by a panel of five evaluators whose assessments were averaged. Composition D was found to be more effective than C on stains which were oil, two types of glue, vegetable fat and red pencil.

Cleaning Efficiency
Stain Best Worst
Oil dag D C
Glue D C
Glue for label D C
Vegetaline D C
Red pencil D C
Example 5
The compositions of Example 2 were diluted with distilled water and used to wash a plastic tile. This was allowed to dry and the presence of streaks on the tile was assessed by the panel of evaluators. The amounts of composition diluted to one litre with water were 20, 25 and 50 grams. At each dilution composition D gave less streaking than composition C.

Claims (7)

CLAIMS :

1. A perfumed aqueous liquid solution of alkali metal hypochlorite, also containing a surfactant mixture comprising
(i) an alkane sulphonate of formula R-SO3M in which R is an alkyl group with 8 to 22 carbon atoms and either
(ii) an alkyl ether sulphate of formula
R1-(OC2H4)n SO4M in which R1 is an alkyl group with 8 to 20 carbon atoms and n has a value in the range from 0.5 to 12, and/or
(iii) soap of formula R2CO2M where R2 is an alkyl or alkenyl group of 7 to 19 carbon atoms,
each M denoting a solubilising cation;
the amounts of the said surfactants, by weight based on the whole composition, being
i) alkane sulphonate 1 to 10% ii) alkyl ether sulphate 0 to 3% iii) soap 0 to 3% but the total of (ii) and (iii) being 0.1 to 4%, the amount of amine oxide (if any) in the composition being less than half the content of other surfactants.

2. A solution according to Claim 1 in which R1 and R2CO2- each have an average of 10 to 16 carbon atoms.

3. A solution according to Claim 1 or Claim 2 wherein the content of sodium chloride is not more than half the amount of available chlorine by weight.

4. A solution according to Claim 1 or Claim 2 containing, by weight based on the whole composition: i) alkane sulphonate 1 to 6%
ii) alkyl ether sulphate 0 to 2%
iii) soap 0 to 2%
Total of (ii) and (iii) 0.2 to 3%.

5. A solution according to Claim 4 wherein the content of sodium chloride is not more than half the amount of available chlorine by weight.

6. A solution according to any one of Claims 1 to 5 containing 0.1 to 0.6% by weight perfume.

7. A solution according to any one of the preceding claims wherein the content of hydrotrope is less than half the content of surfactant other than amine oxide (if any).

AU74485/91A
1990-03-15
1991-03-15
Perfumed aqueous liquid bleaching composition

Ceased

AU661269B2
(en)

Applications Claiming Priority (3)

Application Number
Priority Date
Filing Date
Title

GB909005873A

GB9005873D0
(en)

1990-03-15
1990-03-15
Bleaching composition

GB9005873

1990-03-15

PCT/GB1991/000401

WO1991013964A1
(en)

1990-03-15
1991-03-15
Bleaching composition

Publications (2)

Publication Number
Publication Date

AU7448591A
true

AU7448591A
(en)

1991-10-10

AU661269B2

AU661269B2
(en)

1995-07-20

Family
ID=10672693
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU74485/91A
Ceased

AU661269B2
(en)

1990-03-15
1991-03-15
Perfumed aqueous liquid bleaching composition

Country Status (10)

Country
Link

EP
(1)

EP0447261B1
(en)

JP
(1)

JPH0762154B2
(en)

AU
(1)

AU661269B2
(en)

BR
(1)

BR9106150A
(en)

CA
(1)

CA2038189C
(en)

DE
(1)

DE69106908T2
(en)

ES
(1)

ES2069200T3
(en)

GB
(1)

GB9005873D0
(en)

WO
(1)

WO1991013964A1
(en)

ZA
(1)

ZA911937B
(en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US5236614A
(en)

1990-09-25
1993-08-17
Colgate-Palmolive Company
Stable microemulsion disinfecting detergent composition

DE4131715A1
(en)

1991-09-24
1993-03-25
Henkel Kgaa

AQUEOUS CLEAR LIQUID CONCENTRATES OF ALKYL SULFATES

GB9213578D0
(en)

1992-06-26
1992-08-12
Unilever Plc
Improvements to bleaching compositions

GB9307804D0
(en)

1993-04-15
1993-06-02
Unilever Plc
Hygienic spray cleaner

DE4333100C1
(en)

1993-09-29
1994-10-06
Henkel Kgaa
Bleaching and disinfecting compositions

NL9401510A
(en)

1994-09-16
1996-05-01
Chem Y
Surfactant composition, surfactant concentrate in liquid form, and aqueous bleaching agent having increased viscosity and cleaning activity

DE19730650C2
(en)

1997-07-17
1999-12-02
Henkel Kgaa

Process for avoiding the deposition of heavy metal ions on textile fibers

GB9727517D0
(en)

1997-12-31
1998-02-25
Jeyes Group Plc
Liquid bleach composition

DE19858238A1
(en)

1998-12-17
2000-06-21
Henkel Kgaa

Viscoelastic bleach and disinfectant

DE102005041436A1
(en)

2005-08-31
2007-03-01
Henkel Kgaa
Aqueous bleaching composition, useful to bleach textiles, comprises hypohalogenated bleaching agent, surfactant mixture comprising ether sulfate, alkane sulfonate and amine oxide, foam regulator, and optional alkali silicate and stabilizers

US8426349B2
(en)

2009-05-26
2013-04-23
Delaval Holding Ab
Chlorinated alkaline pipeline cleaner with methane sulfonic acid

EP3078731A1
(en)

2015-04-10
2016-10-12
Henkel AG & Co. KGaA
Cleaning composition comprising bleach

Family Cites Families (9)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

FR2094708A5
(en)

1970-06-30
1972-02-04
Moreau Francis
Foamed javel water-contg a detergent

BE786550A
(en)

1971-07-23
1973-01-22
Basf Ag

DETERGENTS FOR THE TREATMENT OF CELLULOSIC TEXTILES

GB8325541D0
(en)

1983-09-23
1983-10-26
Unilever Plc
Liquid thickened bleaching composition

US4695394A
(en)

1984-04-20
1987-09-22
The Clorox Company
Thickened aqueous cleanser

FR2570713B1
(en)

1984-09-21
1987-08-21
Lesieur Cotelle

THICK AQUEOUS CLEANING COMPOSITIONS

NZ224700A
(en)

1987-05-26
1991-09-25
Bristol Myers Co
Aqueous cleaner comprising alkali metal halogenite, perfume and an anionic surfactant stabiliser

GB8719776D0
(en)

1987-08-21
1987-09-30
Unilever Plc
Machine dishwashing compositions

US4842757A
(en)

1988-01-21
1989-06-27
The Clorox Company
Thickened liquid, improved stability abrasive cleanser

CA2003857C
(en)

1988-12-15
1995-07-18
Lisa Michele Finley
Stable thickened aqueous bleach compositions

1990

1990-03-15
GB
GB909005873A
patent/GB9005873D0/en
active
Pending

1991

1991-03-13
CA
CA002038189A
patent/CA2038189C/en
not_active
Expired – Fee Related

1991-03-15
AU
AU74485/91A
patent/AU661269B2/en
not_active
Ceased

1991-03-15
ES
ES91302262T
patent/ES2069200T3/en
not_active
Expired – Lifetime

1991-03-15
BR
BR919106150A
patent/BR9106150A/en
not_active
IP Right Cessation

1991-03-15
ZA
ZA911937A
patent/ZA911937B/en
unknown

1991-03-15
EP
EP91302262A
patent/EP0447261B1/en
not_active
Expired – Lifetime

1991-03-15
WO
PCT/GB1991/000401
patent/WO1991013964A1/en
unknown

1991-03-15
JP
JP3505307A
patent/JPH0762154B2/en
not_active
Expired – Lifetime

1991-03-15
DE
DE69106908T
patent/DE69106908T2/en
not_active
Expired – Fee Related

Also Published As

Publication number
Publication date

ZA911937B
(en)

1992-11-25

EP0447261B1
(en)

1995-01-25

ES2069200T3
(en)

1995-05-01

DE69106908T2
(en)

1995-07-13

EP0447261A1
(en)

1991-09-18

JPH05505207A
(en)

1993-08-05

CA2038189A1
(en)

1991-09-16

GB9005873D0
(en)

1990-05-09

CA2038189C
(en)

1999-02-09

DE69106908D1
(en)

1995-03-09

WO1991013964A1
(en)

1991-09-19

JPH0762154B2
(en)

1995-07-05

AU661269B2
(en)

1995-07-20

BR9106150A
(en)

1993-03-09

Información de contacto