EP0225654B1 - Composition détergente liquide non aqueuse à adjuvant actif - Google Patents

Composition détergente liquide non aqueuse à adjuvant actif Download PDF

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Publication number
EP0225654B1
EP0225654B1 EP86201867A EP86201867A EP0225654B1 EP 0225654 B1 EP0225654 B1 EP 0225654B1 EP 86201867 A EP86201867 A EP 86201867A EP 86201867 A EP86201867 A EP 86201867A EP 0225654 B1 EP0225654 B1 EP 0225654B1
Authority
EP
European Patent Office
Prior art keywords
composition
ethylene oxide
propylene oxide
condensed
liquid detergent
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
EP86201867A
Other languages
German (de)
English (en)
Other versions
EP0225654A1 (fr
Inventor
Willem Michael Maria Möhlmann
Johannes Henricus Maria Rek
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
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0225654A1 publication Critical patent/EP0225654A1/fr
Application granted granted Critical
Publication of EP0225654B1 publication Critical patent/EP0225654B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0004—Non aqueous liquid compositions comprising insoluble particles
    • 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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3902—Organic or inorganic per-compounds combined with specific additives
    • 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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3947—Liquid compositions

Definitions

  • the present invention relates to non-aqueous, built liquid (including pasty) detergent compositions of the kind comprising a builder and a nonionic detergent surfactant which consists of an organic hydrophobic group which has been condensed with propylene oxide and ethylene oxide in a molar ratio of propylene oxide to ethylene oxide of at least 1 : 17 but less than 2 : 1.
  • Such a composition is disclosed in European Patent Application EP-A 30 096.
  • non-aqueous built liquid compositions containing nonionic detergent surfactant it is known in general for that surfactant to be any type within the class of alkylene oxide condensation products with alcohols, alkylphenols, amides and so on, e.g. according to the latter specification or vide our British Patent Specifications 1 205 711, 1 270 040 and 1 292 352.
  • the rate of dissolution may be significantly improved in comparison with built compositions containing other nonionic surfactants, thereby obiating to a significant extent, the use of non-aqueous solvents, if the nonionic detergent surfactant is a block adduct wherein the organic hydrophobic moiety has been condensed first with the ethylene oxide and then with the propylene oxide.
  • nonionic detergent surfactant which is an alkoxylated block adduct comprising a hydrophobic moiety condensed first with ethylene oxide and then propylene oxide is disclosed alone and unbuilt in Example 1e of patent specification DE-A 2 810 703.
  • the propylene oxide to ethylene oxide mole ratio is 4 : 15.
  • that surfactant is indicated there as undesirable for incorporation in built liquid detergent products on grounds of detergency and solidification upon low temperature storage.
  • Other block adducts wherein condensation has been effected first with ethylene oxide and then with propylene oxide are envisaged for use in detergent powders, according powders, according to the disclosure of patent specification EP-A 14 980.
  • the organic hydrophobic group may for example be selected from Ca-C 18 alkylphenols, C 8 -C 18 primary or secondary , linear or branched-chain alcohols, Cs-C 18 fatty acid amides and so on.
  • the molar ratio of propylene oxide (PO) to ethylene oxide (EO) is critical; too low a PO/EO ratio does not offer an advantage, and too high a PO/EO ratio influences the solubility negatively.
  • the molar ratio of PO to EO in the nonionic detergent surfactants of the invention should lie within the range of at least 1 : 17 but less than 2 : 1, preferably of 7 : 4 to 1 : 2.
  • the nonionic detergent surfactants of the invention should furthermore not form high viscosity liquid crystalline phases in the presence of water, and should have cloud points of above 5 ° C.
  • Suitable examples of nonionic detergent surfactants of the invention are C 13 -C 15 primary alcohol, condensed with 7 moles of ethylene oxide and 4 moles of propylene oxide and C 13 -C 15 alcohol, condensed with 4.9 moles of ethylene oxide and 2.7 moles of propylene oxide.
  • the nonionic detergent surfactants of the invention are low-foaming.
  • nonionic detergent surfactants of the invention with other detergent surfactants, such as anionic, cationic or ampholytic detergent surfactants, and soaps may also be used. If such mixtures are used, the mixture must be water-free and liquid at room temperature.
  • anionic detergent surfactants are alkali metal, ammonium or alkylolamine salts of alkylbenzene sulphonates having from 10 to 18 carbon atoms in the alkyl group, alkyl and alkylether sulphates having from 10 to 24 carbon atoms in the alkyl group and from I to 5 ethylene oxide groups, olefin sulphonates prepared by sulphonation of C 10 -C 24 -olefins and subsequent neutralisation and hydrolysis of the sulphonation reaction product.
  • cationic detergent surfactants are aliphatic or aromatic higher alkyl di(lower alkyl) ammonium halides and examples of soaps are the alkali metal salts of Ciz-C 24 fatty acids.
  • the composition of the invention contains the nonionic detergent surfactant in an amount of at least 10% by weight of the total composition.
  • the amount of nonionic detergent surfactant present in the composition may be as high as about 90%, but in most cases the practical amount will lie between 20 and 70% and preferably between 20 and 50% by weight of the composition.
  • the builder which is used according to the present invention may be either a preferably anhydrous inorganic builder or an organic builder.
  • Suitable organic builders are the alkali metal salts of aminopolycarboxylic - acids, such as ethylene diaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), diethylenetriamine pentacetic acid (DEPTA), hydroxythylaminodiacetic acid and the like; alkali metal salts of ethane hydroxyphosphonic acids, aminophosphonic acids and the like; polyelectrolytes such as alkali metal salts of hydrolysed copolymers of ethylene with maleic anhydride and alkali metal polyacrylates; alkali metal alkenylsuccinates and the like, and sodium phytate.
  • aminopolycarboxylic - acids such as ethylene diaminetetraacetic acid (EDTA), nitrilotriacetic acid (NTA), diethylenetriamine pentacetic acid
  • Suitable inorganic builder are zeolites, the alkaline ortho-, poly-, pyro- and metaphosphates, silicates, borates, carbonates. Also mixtures of organic and inorganic builders may be used.
  • the organic builders need not be anhydrous, but can be used in the hydrated form in which they are normally sold, for example NTA 1 H 2 0, EDTA 2H 2 0.
  • the amount of builder present in the composition may be from 1 to 70% by weight of the composition. For most commercial purposes the amount of builder is from about 10% to about 60% by weight of the composition.
  • the builder should have a particle size of less than 300 wm, preferably less than 200 ⁇ m.
  • the weight ratio of the nonionic detergent surfactant to builder should generally lie within the range of 10 : and 1 : 4, and for most commercial purposes within the range of 4 : 1 to 1 : 4, the preferred ratio being about 1 : 2.
  • the liquid detergent composition of the invention is substantially anhydrous, by which is to be understood that the final composition should contain not more than 5%, and preferably less than 2% by weight of water; this does not include any water of hydration.
  • the stability behaviour of the products may be further improved by the incorporation of a few per cent of an emulsifier or a thixotropic agent, such as lauric diethanolamide, ethoxylated lanolin, sodium dioctyl sulphosuccinate.
  • an emulsifier or a thixotropic agent such as lauric diethanolamide, ethoxylated lanolin, sodium dioctyl sulphosuccinate.
  • the viscosity of the composition will vary, depending upon its constituents. In order to ensure that the composition may be poured satisfactorily, it is preferred that the viscosity should be in the range of from 100 to 3,000 m.Pas, although higher viscosities up to 60,000 m.Pas can be satisfactory. If desired, the viscosity of the composition may be adjusted by the addition of amounts of up to 20% of a thinning agent, for example ethyl alcohol, hexane, heptane, benzene, xylene, toluene, tetrahydrofuran, dimethyl sulphoxide.
  • a thinning agent for example ethyl alcohol, hexane, heptane, benzene, xylene, toluene, tetrahydrofuran, dimethyl sulphoxide.
  • the composition may furthermore contain other materials which are considered normal and desirable additives in detergent compositions.
  • bleaching agents such as alkali metal perborates (either anhydrous or in one of their hydrate forms) may be incorporated in an amount of from about 5 to about 30% by weight of the composition.
  • enzymes such as amylases and proteases, lipases, colouring agents, fluorescers, bleaching agent precursors and activators, bleach stabilizers, perfumes, bactericides, soil suspending agents and corrosion-inhibitors.
  • bleach precursors such as tetraacetylethylene diamine are more stable in the non-aqueous detergent compositions of the present invention than in non-aqueous liquid detergent compositions on the basis of nonionic detergents other than those according to the invention.
  • suspending agents such as highly voluminous metal oxides and metalloid oxides such as silica may also be included in an amount of 1-5% by weight.
  • the rates of solution of the composition were measured by adding the non-aqueous liquid detergent at a concentration of6.5 g/I to tapwater of room temperature under constant stirring (100 rpm) and measuring the conductivity of the resulting mixture. The time at which the conductivity does not change anymore is recorded as the dissolution time.
  • Example II using a C 9 -C 15 primary alcohol mixture having an overall PO/EO molar ratio of 1:1.6 (3.5 mol PO and 5.5 mol EO), with a cloud point of 31 ° C, and a C 9 -C 15 primary alcohol mixture having an overall PO/EO molar ratio of 1:2.5 (2.3 mol PO and 5.7 mol EO), with a cloud point of 39°C, gave the following results:
  • TAED tetraacetylethylenediamine

Claims (4)

1. Composition détergente liquide non aqueuse à adjuvant actif, comprenant un adjuvant et un tensioactif détergent non ionique qui est constitué d'un composé organique contenant un groupe hydrophobe ayant été condensé avec de l'oxyde de propylène et de l'oxyde d'éthylène, dans un rapport molaire oxyde de propylène/oxyde d'éthylène dans la gamme d'au moins 1 : 17 mais de moins de 2 : 1, caractérisé en ce que le tensioactif détergent non ionique est un composé d'addition séquencé dans lequel le groupement hydrophobe organique a été condensé d'abord avec l'oxyde d'éthylène, puis avec l'oxyde de propylène.
2. Composition selon la revendication 1, caractérisée en outre en ce que le rapport molaire se trouve dans la gamme de 1 : 2 à 7 : 4.
3. Composition selon la revendication 1 ou 2, caractérisée en outre en ce que le composé organique contenant un groupe hydrophobe est un alkyl(en C8-C18)phénol ou un alcool primaire ou secondaire en C8-C18, à chaîne linéaire ou ramifiée, ou un amide d'acide gras en C8-C18.
4. Composition selon l'une quelconque des revendications 1-3, caractérisée en outre en ce qu'elle contient un perborate de métal alcalin et un activateur de blanchiment basse température.
EP86201867A 1985-11-11 1986-10-24 Composition détergente liquide non aqueuse à adjuvant actif Expired EP0225654B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8527772 1985-11-11
GB858527772A GB8527772D0 (en) 1985-11-11 1985-11-11 Non-aqueous built liquid detergent composition

Publications (2)

Publication Number Publication Date
EP0225654A1 EP0225654A1 (fr) 1987-06-16
EP0225654B1 true EP0225654B1 (fr) 1989-07-19

Family

ID=10588049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201867A Expired EP0225654B1 (fr) 1985-11-11 1986-10-24 Composition détergente liquide non aqueuse à adjuvant actif

Country Status (9)

Country Link
EP (1) EP0225654B1 (fr)
JP (1) JPS62135599A (fr)
AU (1) AU574590B2 (fr)
BR (1) BR8605540A (fr)
CA (1) CA1289434C (fr)
DE (1) DE3664481D1 (fr)
ES (1) ES2011249B3 (fr)
GB (1) GB8527772D0 (fr)
ZA (1) ZA868525B (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772413A (en) * 1986-08-28 1988-09-20 Colgate-Palmolive Company Nonaqueous liquid nonbuilt laundry detergent bleach booster composition containing diacetyl methyl amine and method of use
GB8625974D0 (en) * 1986-10-30 1986-12-03 Unilever Plc Non-aqueous liquid detergent
US4889651A (en) * 1988-01-21 1989-12-26 Colgate-Palmolive Company Acetylated sugar ethers as bleach activators and detergency boosters
US4874537A (en) * 1988-09-28 1989-10-17 The Clorox Company Stable liquid nonaqueous detergent compositions
US4919834A (en) * 1988-09-28 1990-04-24 The Clorox Company Package for controlling the stability of a liquid nonaqueous detergent
US5209874A (en) * 1989-04-26 1993-05-11 Shell Oil Company Liquid surface active compositions
GB9004289D0 (en) * 1990-02-26 1990-04-18 Unilever Plc Detergent compositions
US5468418A (en) * 1990-02-26 1995-11-21 Lever Brothers Company, Division Of Conopco, Inc. Detergent composition containing mixture of hydratable and non-hydratable salts
DE4029777A1 (de) * 1990-09-20 1992-03-26 Henkel Kgaa Fluessige, nichtionische tensidkombination mit verbesserter kaeltestabilitaet
GB9110720D0 (en) * 1991-05-17 1991-07-10 Unilever Plc Detergent composition
WO1996010073A1 (fr) * 1994-09-26 1996-04-04 The Procter & Gamble Company Compositions detergentes liquides non aqueuses contenant un agent de blanchiment
DE19635070A1 (de) * 1996-08-30 1998-03-05 Clariant Gmbh Flüssige Bleichmittelsuspension
AU7744000A (en) 1999-09-30 2001-04-30 Procter & Gamble Company, The Detergent package with means to mask amine malodours
DE10011273A1 (de) * 2000-03-08 2001-09-20 Henkel Kgaa Flüssigwaschmittel mit flüssigen Bleichaktivatoren
US8933131B2 (en) 2010-01-12 2015-01-13 The Procter & Gamble Company Intermediates and surfactants useful in household cleaning and personal care compositions, and methods of making the same
CN102858942B (zh) 2010-03-31 2014-07-09 荷兰联合利华有限公司 在结构化的液体洗涤剂中引入微胶囊
WO2011120799A1 (fr) 2010-04-01 2011-10-06 Unilever Plc Procédé de structuration de liquides détergents à l'aide d'huile de ricin hydrogénée
JP2014506581A (ja) 2011-02-17 2014-03-17 ザ プロクター アンド ギャンブル カンパニー バイオベースの直鎖アルキルフェニルスルホネート
JP5815750B2 (ja) 2011-02-17 2015-11-17 ザ プロクター アンド ギャンブルカンパニー Ｃ１０〜ｃ１３アルキルフェニルスルホネートの混合物を含む組成物
EP2495300A1 (fr) 2011-03-04 2012-09-05 Unilever Plc, A Company Registered In England And Wales under company no. 41424 of Unilever House Structuration de liquides détergents avec de l'huile de ricin hydrogénée
CN103492544B (zh) 2011-04-25 2015-05-27 荷兰联合利华有限公司 硬质表面处理组合物
ES2584384T3 (es) 2012-01-31 2016-09-27 Unilever N.V. Composición y método para tratar sustratos
WO2015101454A1 (fr) 2013-12-30 2015-07-09 Unilever N.V. Composition détergente
BR112017024402A2 (pt) 2015-05-20 2018-07-24 Unilever Nv composição e método para o tratamento de um substrato e uso da composição para a remoção melhorada de mancha e sujeira mediante a lavagem subsequente
WO2023213524A1 (fr) 2022-05-06 2023-11-09 Unilever Ip Holdings B.V. Composition de détergent

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120533A2 (fr) * 1983-03-25 1984-10-03 Unilever N.V. Composition détergente aqueuse alcaline liquide

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504041A (en) * 1966-02-14 1970-03-31 Wyandotte Chemicals Corp Nonionic condensation products having enhanced activity
LU52892A1 (fr) * 1967-01-27 1968-08-28
JPS53113805A (en) * 1977-03-16 1978-10-04 Mitsubishi Petrochem Co Ltd Nonion surfactant suitable as liquid cleaning agent for clothing
DE2906891A1 (de) * 1979-02-22 1980-09-04 Henkel Kgaa Maschinell anwendbares kombiniertes geschirreinigungs- und klarspuelmittel und verfahren zum gleichzeitigen reinigen und klarspuelen von geschirr in geschirrspuelmaschinen
DE3065199D1 (en) * 1979-12-04 1983-11-10 Ici Plc Detergent composition
US4767558A (en) * 1985-08-05 1988-08-30 Colgate-Palmolive Company Low phosphate or phosphate free nonaqueous liquid nonionic laundry detergent composition and method of use

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0120533A2 (fr) * 1983-03-25 1984-10-03 Unilever N.V. Composition détergente aqueuse alcaline liquide

Also Published As

Publication number Publication date
AU6488886A (en) 1987-05-14
ZA868525B (en) 1988-07-27
ES2011249B3 (es) 1990-01-01
GB8527772D0 (en) 1985-12-18
JPS62135599A (ja) 1987-06-18
DE3664481D1 (de) 1989-08-24
EP0225654A1 (fr) 1987-06-16
BR8605540A (pt) 1987-08-11
AU574590B2 (en) 1988-07-07
CA1289434C (fr) 1991-09-24

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