EP0339998B1 - Liquid cleaning products - Google Patents

Liquid cleaning products Download PDF

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Publication number
EP0339998B1
EP0339998B1 EP89304207A EP89304207A EP0339998B1 EP 0339998 B1 EP0339998 B1 EP 0339998B1 EP 89304207 A EP89304207 A EP 89304207A EP 89304207 A EP89304207 A EP 89304207A EP 0339998 B1 EP0339998 B1 EP 0339998B1
Authority
EP
European Patent Office
Prior art keywords
weight
compositions
composition
liquid
sodium
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 - Lifetime
Application number
EP89304207A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0339998A2 (en
EP0339998A3 (en
Inventor
Frederik Jan Schepers
Charles Cornelis Verburg
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26293833&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0339998(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB888810266A external-priority patent/GB8810266D0/en
Priority claimed from GB888811545A external-priority patent/GB8811545D0/en
Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Publication of EP0339998A2 publication Critical patent/EP0339998A2/en
Publication of EP0339998A3 publication Critical patent/EP0339998A3/en
Application granted granted Critical
Publication of EP0339998B1 publication Critical patent/EP0339998B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/08—Silicates
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/128—Aluminium silicates, e.g. zeolites

Definitions

  • the strongly alkaline material is selected from alkali metal, especially sodium, metasilicate, and mixtures thereof with other alkaline materials such as sodium hydroxide and potassium hydroxide. Normally, they will be incorporated at from 1% to 10%, typically around 5% by weight of the total composition.
  • EP 28849-A (Unilever) describes non-aqueous built liquid detergent compositions which contain the combination of a specific copolymer and a strongly alkaline material, among examples of which are sodium carbonate, sodium hydroxide and sodium disilicate. The use of sodium metasilicate is not proposed.
  • the liquids may optionally contain bleaches, with or without bleach precursors.
  • Specified builders include sodium tripolyphosphate and zeolites. There is however no mention of the problem to which the present invention relates, nor is a solution thereof suggested.
  • the aluminosilicate builder may be selected from crystalline or amorphous materials, for example having the general formula: Na Z (AlO2) Z (SiO2) Y x H2O wherein Z and Y are integers of at least 6, the molar ratio of Z to Y is in the range from 1.0 to 0.5, and x is an integer from 6 to 189 such that the moisture content is from about 4% to about 20% by weight (termed herein, 'partially hydrated').
  • This water content provides the best rheological properties in the liquid. Above this level (e.g. up to about 28% by weight water content), the water level can lead to network formation. In conventional dispersions, below this level (e.g.
  • Nonionic detergent surfactants are well-known in the art. They normally consist of a water-solubilizing polyalkoxylene or a mono- or di-alkanolamide group in chemical combination with an organic hydrophobic group derived, for example, from alkylphenols in which the alkyl group contains from about 6 to about 12 carbon atoms, dialkylphenols in which each alkyl group contains from 6 to 12 carbon atoms, primary, secondary or tertiary aliphatic alcohols (or alkyl-capped derivatives thereof), preferably having from 8 to 20 carbon atoms, monocarboxylic acids having from 10 to about 24 carbon atoms in the alkyl group and polyoxypropylenes.
  • alkylphenols in which the alkyl group contains from about 6 to about 12 carbon atoms
  • dialkylphenols in which each alkyl group contains from 6 to 12 carbon atoms
  • primary, secondary or tertiary aliphatic alcohols or alkyl-capped derivatives thereof
  • ethoxylated nonionics which are the condensation products of fatty alcohols with from 9 to 15 carbon atoms condensed with from 3 to 11 moles of ethylene oxide.
  • condensation products of C11 ⁇ 13 alcohols with (say) 3 or 7 moles of ethylene oxide may be used as the sole nonionic surfactants or in combination with those of the described in the last-mentioned European specification, especially as all or part of the liquid phase.
  • surfactants which may be used include alkali metal soaps of a fatty acid, preferably one containing 12 to 18 carbon atoms.
  • Typical such acids are oleic acid, ricinoleic acid and fatty acids derived from caster oil, rapeseed oil, groundnut oil, coconut oil, palmkernal oil or mixtures thereof.
  • the sodium or potassium soaps of these acids can be used.
  • soaps can act as detergency builders or fabric conditioners, other examples of which will be described in more detail hereinbelow. It can also be remarked that the oils mentioned in this paragraph may themselves constitute all or part of the liquid phase, whilst the corresponding low molecular weight fatty acids (triglycerides) can be dispersed as solids or function as structurants.
  • compositions according to the present invention preferably also contain one or more other functional ingredients, for example selected from other detergency builders, bleaches and (for hard surface cleaners) abrasives.
  • the class of inorganic builders comprises various phosphate, carbonate, silicate and borate materials, particularly the alkali-metal salt forms. Mixtures of these may also be used.
  • Suitable bleaches include the halogen, particularly chlorine bleaches such as are provided in the form of alkalimetal hypohalites, e.g. hypochlorites.
  • the oxygen bleaches are preferred, for example in the form of an inorganic persalt, or a peroxy acid compound.
  • Suitable persalt bleach, compounds are alkalimetal peroborates, both tetrahydrates and monohydrates, alkali metal percarbonates, persilicates and perphosphates, of which sodium perborate is preferred.
  • composition contains abrasives for hard surface cleaning (i.e. is a liquid abrasive cleaner), these will inevitably be incorporated as particulate solids.
  • abrasives for hard surface cleaning i.e. is a liquid abrasive cleaner
  • these will inevitably be incorporated as particulate solids.
  • They may be those of the kind which are water insoluble, for example calcite. Suitable materials of this kind are disclosed in the applicants' patent specifications EP-A-50,887; EP-A-80,221; EP-A-140,452; EP-A-214,540 and EP 9,942, which relate to such abrasives when suspended in aqueous media. Water soluble abrasives may also be used.
  • the solids content of the product may be within a very wide range, for example from 1-90%, usually from 10-80% and preferably from 15-70%, especially 15-50% by weight of the final composition.
  • the components of the solid phase should be in particulate form and have an average particle size of less than 300 microns, preferably less than 200 microns, more preferably less than 100 microns, especially less than 10 microns.
  • the particle size may even be of sub-micron size.
  • the proper particle size can be obtained by using materials of the appropriate size or by milling the total product in a suitable milling apparatus.
  • compositions are substantially non-aqueous, i.e. they little or no free water, preferably no more than 5%, preferably less than 3%, especially less than 1% by weight of the total composition. It has been found by the applicants that the higher the water content, the more likely it is for the viscosity to be too high, or even for setting to occur. However, this may at least in part be overcome by use of deflocculants, especially in relatively high amounts.
  • a colloid mill to achieve a particle size of 0.1 to 100 microns, preferably 0.5 to 50 microns, ideally 1 to 10 microns.
  • a preferred combination of such mills is a colloid mill followed by a horizontal ball mill since these can be operated under the conditions required to provide a narrow size distribution in the final product.
  • particulate material already having the desired particle size need not be subjected to this procedure and if desired, can be incorporated during a later stage of processing.
  • the gas evolution was measured as the cumulative volume released from 100g of product, after 1 day and 3 days.
  • Example 1 The procedure of Example 1 was followed except that various alkaline materials were incorporated and the compositions consisted of: Zeolite 24% Sodium perborate monohydrate 15% Plurafax RA30 56% Alkaline material 5%

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)
EP89304207A 1988-04-29 1989-04-27 Liquid cleaning products Expired - Lifetime EP0339998B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB888810266A GB8810266D0 (en) 1988-04-29 1988-04-29 Liquid cleaning products
GB8810266 1988-04-29
GB8811545 1988-05-16
GB888811545A GB8811545D0 (en) 1988-05-16 1988-05-16 Liquid cleaning products

Publications (3)

Publication Number Publication Date
EP0339998A2 EP0339998A2 (en) 1989-11-02
EP0339998A3 EP0339998A3 (en) 1990-12-19
EP0339998B1 true EP0339998B1 (en) 1994-02-23

Family

ID=26293833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89304207A Expired - Lifetime EP0339998B1 (en) 1988-04-29 1989-04-27 Liquid cleaning products

Country Status (8)

Country Link
EP (1) EP0339998B1 (pt)
JP (1) JP2583308B2 (pt)
AU (1) AU608972B2 (pt)
BR (1) BR8902011A (pt)
CA (1) CA1314186C (pt)
DE (1) DE68913227T2 (pt)
ES (1) ES2049812T3 (pt)
MY (1) MY104966A (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8810189D0 (en) * 1988-04-29 1988-06-02 Unilever Plc Liquid cleaning products
GB8823705D0 (en) * 1988-10-10 1988-11-16 Unilever Plc Liquid detergent products
GB8900496D0 (en) * 1989-01-10 1989-03-08 Procter & Gamble Liquid detergent composition containing enzyme and enzyme stabilization system
TW230784B (pt) * 1990-10-22 1994-09-21 Procter & Gamble
GB9124489D0 (en) * 1991-11-18 1992-01-08 Unilever Plc Liquid cleaning products
US5480575A (en) * 1992-12-03 1996-01-02 Lever Brothers, Division Of Conopco, Inc. Adjuncts dissolved in molecular solid solutions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985669A (en) * 1974-06-17 1976-10-12 The Procter & Gamble Company Detergent compositions
US4769168A (en) * 1985-08-05 1988-09-06 Colgate-Palmolive Company Low phosphate or phosphate free nonaqueous liquid nonionic laundry detergent composition and method of use
US4753748A (en) * 1986-08-28 1988-06-28 Colgate-Palmolive Company Nonaqueous liquid automatic dishwashing detergent composition with improved rinse properties and method of use
GB8625974D0 (en) * 1986-10-30 1986-12-03 Unilever Plc Non-aqueous liquid detergent

Also Published As

Publication number Publication date
AU3374289A (en) 1989-11-02
EP0339998A2 (en) 1989-11-02
CA1314186C (en) 1993-03-09
JPH01313599A (ja) 1989-12-19
EP0339998A3 (en) 1990-12-19
JP2583308B2 (ja) 1997-02-19
BR8902011A (pt) 1989-12-05
MY104966A (en) 1994-07-30
DE68913227T2 (de) 1994-06-01
DE68913227D1 (de) 1994-03-31
AU608972B2 (en) 1991-04-18
ES2049812T3 (es) 1994-05-01

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