CA1158950A - Detergent composition - Google Patents

Detergent composition

Info

Publication number
CA1158950A
CA1158950A CA000366134A CA366134A CA1158950A CA 1158950 A CA1158950 A CA 1158950A CA 000366134 A CA000366134 A CA 000366134A CA 366134 A CA366134 A CA 366134A CA 1158950 A CA1158950 A CA 1158950A
Authority
CA
Canada
Prior art keywords
composition
solids
sodium
surfactant
builder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000366134A
Other languages
French (fr)
Inventor
Alison M. Elder
Roger I. Hancock
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10509589&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA1158950(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of CA1158950A publication Critical patent/CA1158950A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0004Non aqueous liquid compositions comprising insoluble particles
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0008Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0013Liquid compositions with insoluble particles in suspension
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/39Organic or inorganic per-compounds
    • C11D3/3947Liquid compositions

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)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

8 H.31072 Abstract Detergent Composition A liquid detergent composition comprises a dispersion of solids comprising one or more builders and a bleach, the average particle diameter of the solids being at most 10 microns in a substantially water free non-ionic liquid surfactant which has a pour point of less than 10°C, the composition being free from dispersants for the builder.

Description

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1 H.31072 Deter~ent Com~osition THE PRESENT INVENTION relates to a detergent composition, in particular to an anhydrous non-ionic de-tergent composition containing builders.
Heavy duty detergent compositions for use, for example, in domestic washing machines are commonly sold in the form of powders. The advantage of a powder is that it enables a wide range of inorganic builders to be incorporated into the composition, wider than if an a~ueous composition were formulated because some builders e.g. sodium tripolyphosphate are unstable in the presence of water and bleaches e.g. sodium perborate or percarbonate may oxidise organic components of the composition in the presence of water. It is also impossible to formulate a homogeneous liquid aqueous composition with organic surfactant and the desired quantity of inorganic builders. The disadvan-tage of a powder from the manufacturer's point of view is that it is relatively expensive to make. Compared with an equivalent aqueous composition a powder requires more expensive drying equipment for its production, and as well as being expensive such equipment is often difficult and sometimes hazardous to operate.
In our ~elgian Patent No 867 827 we have disclosed heavy duty detergent compositions which contain builders dispersed in substantially water-~ree non-ionic liquid surfactants with the aid of dispersants, silica dispersants being employed.
Surprisingly we have now found that provided that the dispersed solids have average particle diameters of less than 10 microns, dispersions in substantially water free non-ionic liquid surfactants having pour points less than 10C are acceptably stable even in the absence of a dispersant for the builder. Thus it is possible ~5 to prepare formulations containing only components required for the washing function of the composition with-out introducing additional materials required only for : : :

::

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2 H.31072 stabilising the dispersed condition of the detergent composition itself.
According to the irvention a liquid detergent composition comprises a dispersion of solids comprising at least one builder which is preferably sodium or potassium tripolyphosphate and at least one bleach which is preferably sodium or potassium perborate or per-carbonate, the average particle diameter of the solids being at most 10 microns and preferably at most 5 micron~
in a substantially water-free non-ionic liquid surfactant which has a pour point of less than 10C, the composition being free from dispersants for the solids.
In particular, the composition is free from silica containing dispersants.
The pour point may be measured by ASTM test method designation D97-66 reapproved in 1971.
Any builder which is known for use in detergent compositions may be used in the composition according to the present in~ention. Generally such builders are inorganic in nature but some organic products in particular sodium carboxymethylcellulose may be used.
Suitable inorganic builders include phosphates, e.g, trisodium~phosphate, tetrasodium pyrophosphate, sodium hexametaphosphate and, preferably, sodium ; 25 tripolyphosphate, carbonates e~g. sodium carbonate, sodium bicarbonate and sodium sesquicarbonate, clays e.g.
kaolin, montmorillonites and~odium bentonite, and ~ misce~laneous salts e.g. sodium meta-silicate and sodium ; ~ citrate and nitrilotriacetic acid. ~ The potassium analogues of these sodium compounds may also be used.
In order to provide an effective dispersion of the solids in the liquid non-ionic surfactant it is desirable that at least 90% of the particles of the solid have particle sizes less than 10 microns in diameter~
The non-ionic surfactant which is a component of the composition according to the invention is preferably .
; ~ ;

,. ~ . ~, .
;' : : `
.

9~319~
3 H.31072 an alkylene oxide derivative. In particular, the non~ionic surfactant may be an alkylene oxide derivative of an amide, alkyl Phenol or an alkanol. The alkyl group in the alkyl phenol may be straight chain or branched chain and may contain from 6 to 20 carbon atoms, e.g, para-nonyl phenol or para-dodecylphenol.
The alkanol may contain 6 to 20 carbon atoms, particularly 10 to 16 carbon atoms. The alcohol is preferably a primary or secondary alkanol having a linear or mono brached alkyl group.
The composition may usefully comprise two non-ionic surfactants, one of which fulfills a surfactant function and the other of which both fulfills a surfactant function and reduces the pour point of the composition. The former surfactant may for example comprise alcohols having 12 to 16 carbon atoms which have been alkoxylated with 5 to 15 moles of ethylene and/or ; propylene oxide; the other surfactant may be a linear or branched chain C6 11 alcohol alkoxylate which comprises 2 to 8 moles of ethylene and/or propylene oxide per mole, branched chain alcohols being preferred in the C8 11 range and linear alcohols being preferred in the C6 8 range, or an alkyl phenol alkoxylate having 2 to 6 moles of ethylene and/or propylene oxide per molecule the alkyl group suitably being in a para-position and having 6 to 12 carbon atoms.
A further surfactant of the anionic or cationic type may be included if desired. Such anionic or cationic surfactants may be of known type for example the anionic detergents may be soaps, alkylbenzene or - olefine sulphonates, alcohol sulphates or alcohol alkoxylate sulphates; the cationic surfactants are suitably di-C14 20 and preferably di-C16_1~ alkyl9 di-lower alkyl aMmonium salts or hydroxides for example chlorides or sulphates. The loweralkyl groups are suitably methyl groups.

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:

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4 H.31072 In general the alkyl phenol or alkanol derivativemay comprise 2 to 20 alkylene oxide units which are preferably ethylene oxide units although a minor number of propylene oxide or a lesser number of butylene oxide units may also be present. The amide is suitably a mono- or di-alkanol amide e.g. a mono- or di-ethanolamide preferably of a C6 to C30 more preferably C10 to C20 alkanoic acid, e.g. coconut acids, tallow acids or stearic acid. An alternative non-ionic 10 surfactant for use fn a composition according to the invention comprises a copolymer of ethylene oxide with propylene oxide and/or butylene oxide. The copolymer comprises a block of propylene and/or butylene oxide units on to which is grafted the ethylene oxide. The 15 block preferably comprises 20 to 40 propylene oxide units, especially about 30 such units and 20 to 30 especially about 26 ethylene oxide units.
It is a feature of the composition according to the invention that the dispersion of the solids in the 20 non-ionic surfactant is particularly stable. If the solids do separate at all then the resulting phase is loosely flocculated and is readily redispersible while if the relative amounts of the solids and non-ionic surfactant in the composition is correctly chosen there 25 is little phase separation as the liquid fills the space between the loosely packed solid particles. The composition may contain 20 to 70% by weight builder(s).
It is preferred that the composition contain 30 to 60%
and more preferably 40 to 60% by weight builder(s). The ~ 30 composition preferably contains 1 to 20% and more ;~ preferably 2 to 15% by weight of bleach. The remainder is preferably substantially non-ionic surfactant. The composition may also contain additives conventionally found in detergent compositions e~g. optical brighteners, 35 ethylene diamine tetra acetic acid7 dyesg perfumes or enzymes. The invention will now be further described with reference to the following Example ~ ' ' H.31072 EXA~PLE
A heavy duty laundry liquid was produced as follows:
Sodium tripolyphosphate (40g), sodium percarbonate (5g) and miscellaneous ingredients (colour, perfume, optical brighteners~ carboxymethylcellulose and anti-corrosion agents) (5g) and polyethylene glycol (molecular weight 200, 5g) were added to a non-ionic surfactant mixture (45g) comprising "Synperonic" K 87,(a C13 to C15 primary alcohol alkoxylated to an average of 7 moles of alkylene oxide per mole of alcohol the alkylene oxide being a mixture of 8% propylene oxide and 92% ethylene oxide) (36.6g) and "Alphanol" 6(a C7 to Cg primary alcohol, average molecular weight 126 ethoxylated with six moles per mole of ethylene oxide) (8.4g) The whole of the ingredients were mixed by hand to form a stiff paste which was then mixed in a Silverson mixer and then a Dyno Mill bead mill to reduce the mean diameter of the particles to about 2.5 microns.
The product was a suspension stable for at least -three months, at the end of which there was slight settling readily reversible by shaking. The mixture had a pour point of 7C
The product was te-sted by measuring the change in reflectance of a standard soiled Krefeld cloth using a Gardner reflectometer, brought about by washing the cloth in a Terg-O-Tometer manufactured by the US Testing Company, at 100 rpm for 10 minutes followed by hand rinsing.
RESULTS
31~ L }~_2~ 8~ 50 300 150 Change in % r~flectance on cleaning cloths Heavy duty liquid 1.25gm/litre18.0 1008 Heavy duty liquid 2.5 gm/litre - - 17.9 Market laundry powder 5.Ogm/litre 11.6 8.7 10.8 .

6 H.31072 RESULTS Water Hardness ppm -Cotton 60C
Change in reflectance on cleaning cloths 5Heavy duty liquid 1.25~n/litre 28.9 - -Heavy duty liquid 2.5 gm/litre - - 31.1 Market launclry powder 5.Ogm/litre 29.6 31.1 The composition of the invention thus ~hows superior washing performance with polyester/cotton and substantially equal performance with cotton compared with a commercially marketed laundry powder.
"Synperonic" and "Alphanol" are trade marks of Imperial Chemical Industries Limited.

TJL/JH

Claims (10)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A liquid detergent composition which has a pour point of less than 10°C and which comprises a dispersion of solids comprising at least one builder and at least one bleach, the average particle diameter of the solids being at most 10 microns in a substantially water free non-ionic liquid surfactant, the composition being free from dispersants for the solids.
2. A composition as claimed in Claim 1 in which the builder is sodium or potassium tripolyphosphate.
3. A composition as claimed in Claims 1 or 2 in which the bleach is sodium or potassium perborate or percarbonate.
4. A composition as claimed in Claim 1, in which the average particle diameter of the solids is at most 5 microns.
5. A composition as claimed in Claim 4 in which at least 90% of the solid particles have diameters less than 10 microns.
6. A composition as claimed in Claim 1 in which the non-ionic surfactant is an alkylene oxide derivative of an amide, alkyphenol or alkanol.
7. A composition as claimed in Claim 1 which comprises two non-ionic surfactants one of which reduces the pour point of the composition.
8. A composition as claimed in Claim 1 in which an anionic or cationic surfactant is present.
9. A composition as claimed in Claim 1 which contains 30 to 60% by weight of builder(s).
10. A composition as claimed in Claim 1 which contains 2 to 15% by weight of bleach.
CA000366134A 1979-12-04 1980-12-04 Detergent composition Expired CA1158950A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7941734 1979-12-04
GB7941734 1979-12-04

Publications (1)

Publication Number Publication Date
CA1158950A true CA1158950A (en) 1983-12-20

Family

ID=10509589

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000366134A Expired CA1158950A (en) 1979-12-04 1980-12-04 Detergent composition

Country Status (7)

Country Link
EP (1) EP0030096B2 (en)
JP (1) JPS5690895A (en)
AU (1) AU6461180A (en)
CA (1) CA1158950A (en)
DE (1) DE3065199D1 (en)
DK (1) DK156489C (en)
NZ (1) NZ195757A (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8308508D0 (en) * 1983-03-28 1983-05-05 Ici Plc Detergent compositions
FR2552124B1 (en) * 1983-09-20 1986-09-12 Ugine Kuhlmann NOVEL FLUID FORMULATIONS FOR STORAGE-STABLE TEXTILE BLEACH BATHS AND PROCESS FOR OBTAINING SAME
NZ211550A (en) * 1984-04-06 1987-06-30 Colgate Palmolive Co Liquid detergent composition containing acidic phosphorus compound and polyphosphate
ZA852200B (en) * 1984-04-09 1986-11-26 Colgate Palmolive Co Liquid laundry detergent composition
ZA852201B (en) * 1984-04-09 1986-11-26 Colgate Palmolive Co Liquid bleaching laundry detergent composition
US4661280A (en) * 1985-03-01 1987-04-28 Colgate Built liquid laundry detergent composition containing salt of higher fatty acid stabilizer and method of use
US4744916A (en) * 1985-07-18 1988-05-17 Colgate-Palmolive Company Non-gelling non-aqueous liquid detergent composition containing higher fatty dicarboxylic acid and method of use
GB8527772D0 (en) * 1985-11-11 1985-12-18 Unilever Plc Non-aqueous built liquid detergent composition
IN168163B (en) * 1986-02-21 1991-02-16 Colgate Palmolive Co
NZ221506A (en) * 1986-08-28 1989-08-29 Colgate Palmolive Co Fabric-treating detergent composition with a suspension of insoluble inorganic particles
GB8625974D0 (en) * 1986-10-30 1986-12-03 Unilever Plc Non-aqueous liquid detergent
EP0339999A3 (en) * 1988-04-29 1991-07-17 Unilever Plc Liquid cleaning products
GB8810195D0 (en) * 1988-04-29 1988-06-02 Unilever Plc Liquid cleaning products
DE3826110A1 (en) 1988-08-01 1990-02-15 Henkel Kgaa METHOD FOR DOSING PASTE-SHAPED DETERGENTS
DE69033783T2 (en) * 1989-02-27 2002-04-18 Unilever Nv Liquid detergent
DE4024531A1 (en) * 1990-08-02 1992-02-06 Henkel Kgaa LIQUID DETERGENT
ES2084783T3 (en) * 1990-11-02 1996-05-16 Clorox Co NON-AQUEOUS LIQUID DETERGENT WITH STABLE SOLUBILIZED PERACITY.
GB9123219D0 (en) * 1991-11-01 1991-12-18 Unilever Plc Liquid cleaning products
GB9123220D0 (en) * 1991-11-01 1991-12-18 Unilever Plc Liquid cleaning compositions
GB9209386D0 (en) * 1992-04-30 1992-06-17 Unilever Plc Liquid cleaning products
GB9216454D0 (en) * 1992-08-03 1992-09-16 Ici Plc Detergent compositions
DE4326112A1 (en) * 1993-08-04 1995-02-09 Henkel Kgaa Detergent for hard surfaces
DE4436151A1 (en) * 1994-08-16 1996-05-02 Henkel Kgaa Process for the production of a liquid detergent with bleach
EP0783563B1 (en) * 1994-09-26 2000-01-26 The Procter & Gamble Company Nonaqueous bleach-containing liquid detergent compositions
EP0784669A1 (en) * 1994-09-26 1997-07-23 The Procter & Gamble Company Process for preparing non-aqueous, bleach-containing liquid detergent compositions
US5814592A (en) * 1996-06-28 1998-09-29 The Procter & Gamble Company Non-aqueous, particulate-containing liquid detergent compositions with elasticized, surfactant-structured liquid phase
JP3267626B2 (en) * 1996-06-28 2002-03-18 ザ、プロクター、エンド、ギャンブル、カンパニー Non-aqueous detergent composition containing bleach precursor
EP0849391A1 (en) 1996-11-26 1998-06-24 Unilever N.V. Process for mixing a detergent and solubilizer and system therefor
WO2001023274A1 (en) 1999-09-30 2001-04-05 The Procter & Gamble Company Detergent package with means to mask amine malodours
US6740630B2 (en) 2001-07-24 2004-05-25 The Procter & Gamble Company Processes for making substantially anhydrous structured surfactant pastes and other detergent ingredients and compositions employing same
US6770613B2 (en) 2001-07-24 2004-08-03 The Procter & Gamble Company Process for making detergent compositions with additives
US7008915B2 (en) 2001-08-07 2006-03-07 The Procter & Gamble Co. Liquid detergent compositions with low-density particles

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1531432A (en) * 1975-02-14 1978-11-08 Procter & Gamble Ltd Detergent compositions
NO781898L (en) * 1977-06-09 1978-12-12 Ici Ltd LIQUID DETERGENT MIXTURE.
GB1534680A (en) * 1977-10-14 1978-12-06 Colgate Palmolive Co Cleaning compositions
US4235732A (en) * 1978-02-08 1980-11-25 The Procter & Gamble Company Liquid bleaching compositions

Also Published As

Publication number Publication date
EP0030096B2 (en) 1993-07-14
NZ195757A (en) 1983-04-12
DK156489B (en) 1989-08-28
EP0030096A1 (en) 1981-06-10
JPH0424400B2 (en) 1992-04-24
JPS5690895A (en) 1981-07-23
AU6461180A (en) 1981-06-11
EP0030096B1 (en) 1983-10-05
DK156489C (en) 1990-02-12
DK500880A (en) 1981-06-05
DE3065199D1 (en) 1983-11-10

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