EP0214540B1 - Compositions de nettoyage abrasives liquides - Google Patents

Compositions de nettoyage abrasives liquides Download PDF

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Publication number
EP0214540B1
EP0214540B1 EP19860111706 EP86111706A EP0214540B1 EP 0214540 B1 EP0214540 B1 EP 0214540B1 EP 19860111706 EP19860111706 EP 19860111706 EP 86111706 A EP86111706 A EP 86111706A EP 0214540 B1 EP0214540 B1 EP 0214540B1
Authority
EP
European Patent Office
Prior art keywords
abrasive
weight
composition according
micrometres
particles
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
EP19860111706
Other languages
German (de)
English (en)
Other versions
EP0214540A3 (en
EP0214540A2 (fr
Inventor
Peter Leonard Dawson
David Machin
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 EP0214540A2 publication Critical patent/EP0214540A2/fr
Publication of EP0214540A3 publication Critical patent/EP0214540A3/en
Application granted granted Critical
Publication of EP0214540B1 publication Critical patent/EP0214540B1/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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/14—Fillers; Abrasives ; Abrasive compositions; Suspending or absorbing agents not provided for in one single group of C11D3/12; Specific features concerning abrasives, e.g. granulometry or mixtures
    • 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
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0013—Liquid compositions with insoluble particles in suspension

Definitions

  • the present invention relates to liquid abrasive cleaner compositions comprising particulate abrasive material stably suspended in an aqueous liquid medium.
  • Liquid abrasive cleaners have been known in the art for many years. They are widely used in the ordinary household cleaning of hard surfaces as they provide a convenient means for the elimination of stubborn soils, greases, burnt-in materials and stains which are not or not completely removed by abrasive-free cleaning products.
  • liquid abrasive cleaners have become increasingly more sophisticated, the in-use properties other than straightforward cleaning efficiency becoming relevant factors in the consumer appreciation. Accordingly, the art is aiming at liquid abrasive cleaner products which display a combination of properties such as cleaning efficiency, non-scratching behaviour, rich foaming, a non-gritty creamy appearance, good rinsability, etc.
  • liquid abrasive cleaner compositions comprising calcium metasilicate as sole abrasive, or in conjunction with calcium carbonate, which are stated to yield abrasive cleaners of superior cleaning action and reduced abrasion.
  • the abrasive material should have a mean particle size in the range of about 5.5 to 16 micrometres and substantially no parti- des above 40 micrometres.
  • liquid scouring cleanser compositions comprising an abrasive powder of mean particle size between 4 and 17.5 micrometres with substantially no particles of size above 75 micrometres.
  • An improved soft and smooth consistency is combined with acceptable cleaning performance.
  • a drawback of liquid abrasive cleaner compositions formulated with relatively high amounts of fine mineral abrasives, in particular very fine calcite, is that on storage the fine mineral will grow to particles of much larger size which consequently adversely affect the consistency of the product and the non-scratching behaviour thereof on the softer substrates such as e.g. plastic surfaces.
  • the present invention provides a liquid abrasive cleaner composition which is free from phosphates, comprising, stably suspended in a liquid medium, from 40 to 70% by weight of a mineral abrasive having particles in the size range of from 1 to 10 micrometres with less than 10% by weight of the abrasive particles having sizes above 10 micrometres and less than 30% by weight of the abrasive particles having sizes below 1 micrometre, and up to 20% by weight of one or more electrolytes selected from the group consisting of alkali metal and ammonium salts of citric, carbonic, sulphuric, hydrochloric, succinic, adipic and glutaric acids.
  • Suitable for use as the abrasive material are both natural and synthetic mineral abrasives, for example dolomite, precipitated calcium carbonate (aragonite), feldspar, alumina, silica, abrasives, such as quartz and quartzite; and preferably an abrasive material is used with a hardness on Moh's scale of from 1 to 4.
  • mineral abrasives for example dolomite, precipitated calcium carbonate (aragonite), feldspar, alumina, silica, abrasives, such as quartz and quartzite
  • an abrasive material is used with a hardness on Moh's scale of from 1 to 4.
  • Particularly suitable is calcite, for instance limestone, chalk or marble such as those forms of calcite referred to in the British Patent 1 345 119.
  • the mineral abrasive is included in an amount of from 40 to 70% by weight of the composition, preferably of from 45 to 55% by weight.
  • Abrasive distributions in accordance with the present invention are highly classified distributions.
  • the classification at the upperside preferably results in distributions having less than 5 or even 3% by weight of particles having sizes above 10 micrometres.
  • a very sharp classification at the lower side is less pertinent, but preferably results in distributions comprising less than 20% by weight of particles having sizes below 1 micrometre.
  • the mean particle size of the distribution according to the present invention lies in general within the range of from 1 to 5 micrometres, optimal results being obtained with mean particle sizes within the preferred range of from 2 to 4 micrometres.
  • the mineral abrasive is stably suspended in a liquid medium, which normally comprises an aqueous medium in which an anionic detergent material is present, preferably in combination with a nonionic or zwitterionic detergent material.
  • Suitable anionic surfactants are alkali metal or alkanol amine salts of C 12 -C 18 branched or straight chain alkylaryl sulphonates, of C 10 -C 18 alkyl (EO) 1-10 sulphates, of C 10 -C 24 fatty acid soaps etc.
  • the amount of anionic surfactant will vary between 0.5 and 15 percent, preferably between 1 and 5 percent by weight of the final composition.
  • nonionic or zwitterionic detergent material i n the aqueous medium in an amount of from 0.3 to 7 percent, preferably from 0.5 to 5 percent by weight.
  • Suitable examples of nonionic detergents are water-soluble condensation products of ethylene oxide and/or propylene oxide with linear primary or secondary C 8 -C 18 alcohols, with C 8 -C 18 fatty acid amides or fatty acid alky- lolamides (both mono- and diamides), with C 9 -C 18 alkyl phenols and so on.
  • the alkoxylated Ca-C 1 a fatty acid mono- and dialkylolamides should contain more than one alkylene oxide unit; for example, they should be condensed with e.g.
  • alkylene oxide such as ethylene oxide.
  • Fatty acid mono- or dialkylolamides in which the fatty acid radical contains 10-16 carbon atoms are also suitable nonionics, such as for instance coco fatty acid mono- or diethanolamide.
  • Suitable zwitterionic detergents are trialkyl amine oxides having one long alkyl chain (Ca-Cts) and two short (C 1 -C 4 ) alkyl chains; betaines and sulphobetaines.
  • liquid medium should exhibit Bingham plastic characteristics, thus forming a stable suspending medium for the mineral abrasive.
  • surfactants possibly in combination with other surfactants, are described in British patent specifications 1 167597,1 1 181 607, 1 262 280, 1 303 810, 1 308 190 and 1 418 671.
  • one or more electrolytes are included, which must not be of the phosphate type.
  • Suitable electrolytes are selected from the group consisting of alkali metal and ammonium salts of citric, carbonic, sulphuric, hydrochloric, succinic, adipic and glutaric acids.
  • Preferred electrolytes are the alkali metal salts of citric and carbonic acid, such as sodium citrate, sodium carbonate and sodium bicarbonate.
  • the level of electrolyte depends on any choice of surfactant system but in general ranges from 0.5 to 20% by weight, preferably from 1 to 7% by weight.
  • compositions of the present invention optimally include a bleaching agent of the chlorine-releasing type, such as sodium hypochlorite and isocyanurate.
  • adjuncts for liquid abrasive cleansers may be included, such as colouring agents, perfumes, fluorescers, hydrotropes, soil-suspending agents, enzymes, opacifiers, germicides, humectants, etc.

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)
  • Colloid Chemistry (AREA)

Claims (10)

1. Composition abrasive liquide de nettoyage qui est exempte de phosphates, comprenant en suspension dans un milieu liquide, de 40 à 70% en poids d'un abrasif minéral ayant des particules d'une grosseur comprise entre 1 et 10 µm et moins de 10% en poids de particules abrasives d'une dimension au dessus de 10 µm et moins de 30% en poids de particules abrasives d'une grosseur au dessous de 1 µm, et jusqu'à 20% en poids d'un ou plusieurs électrolyte(s) choisi(s) parmi les sels de métaux alcalins et d'ammonium des acides citrique, carbonique, sulfurique, chlorhydrique, succinique, adipique et glutarique.
2. Composition selon la revendication 1, dans laquelle l'abrasif présente une dureté Moh de 1 à 4.
3. Composition selon la revendication 1 ou 2, dans laquelle l'abrasif est une calcite.
4. Composition selon l'une quelconque des revendications précédentes, qui comprend de 45 à 55% en poids d'abrasif.
5. Composition selon l'une quelconque des revendications précédentes, dans laquelle l'abrasif présente une granulométrie moyenne de 1 à 5 ¡.Lm.
6. Composition selon l'une quelconque des revendications précédentes, dans laquelle l'abrasif présente une granulométrie moyenne de 2 à 4 µm.
7. Composition selon l'une quelconque des revendications précédentes, dans laquelle moins de 5% en poids de particules abrasives sont d'une dimension au dessus de 10 µm.
8. Composition selon l'une quelconque des revendications précédentes, dans laquelle le milieu aqueux contient de 0,5 à 15% en poids d'un surfactif anionique, de 0,3 à 7% en poids d'un surfactif non ionique et de 0,5 à 20% en poids d'électrolyte.
9. Composïtion selon l'une quelconque des revendications précédentes, dans laquelle l'électrolyte est choisi parmi les sels de métaux alcalins des acides citrique et carbonique.
10. Composition selon l'une quelconque des revendication précédentes, qui contient en outre un agent de blanchiment du type à dégagement de chlore.
EP19860111706 1985-09-11 1986-08-23 Compositions de nettoyage abrasives liquides Expired EP0214540B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858522526A GB8522526D0 (en) 1985-09-11 1985-09-11 Liquid abrasive cleaner compositions
GB8522526 1985-09-11

Publications (3)

Publication Number Publication Date
EP0214540A2 EP0214540A2 (fr) 1987-03-18
EP0214540A3 EP0214540A3 (en) 1988-05-25
EP0214540B1 true EP0214540B1 (fr) 1990-10-31

Family

ID=10585026

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860111706 Expired EP0214540B1 (fr) 1985-09-11 1986-08-23 Compositions de nettoyage abrasives liquides

Country Status (4)

Country Link
EP (1) EP0214540B1 (fr)
JP (1) JPS6270497A (fr)
DE (1) DE3675301D1 (fr)
GB (1) GB8522526D0 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3786430T2 (de) * 1986-09-03 1993-10-28 Kao Corp Flüssigreiniger-Zusammensetzung.
GB8718219D0 (en) * 1987-07-31 1987-09-09 Unilever Plc Liquid abrasive cleaning composition
CA2014220C (fr) * 1989-04-11 1995-11-07 Peter Leonard Dawson Liquide de nettoyage
US5281412A (en) * 1991-12-30 1994-01-25 The Procter & Gamble Company Oral compositions
US5460742A (en) * 1993-05-18 1995-10-24 Reckitt & Colman Inc. Aqueous acidic hard surface cleaner with abrasive
FR2735788B1 (fr) * 1995-06-23 1997-08-22 Francais Prod Ind Cfpi Composition aqueuse detergente acide a taux reduit ou nul d'acide phosphorique et son utilisation dans l'industrie agro-alimentaire
EP1460125A1 (fr) * 2003-03-18 2004-09-22 Unilever Plc Compositions nettoyantes abrasives pour les surfaces dures

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4181633A (en) * 1976-12-01 1980-01-01 Colgate-Palmolive Company Liquid scouring cream containing calcium metasilicate
GB1534680A (en) * 1977-10-14 1978-12-06 Colgate Palmolive Co Cleaning compositions
JPS609560B2 (ja) * 1978-06-29 1985-03-11 ライオン株式会社 水性洗剤スラリ−
US4352678A (en) * 1978-10-02 1982-10-05 Lever Brothers Company Thickened abrasive bleaching compositions
CA1152843A (fr) * 1979-06-25 1983-08-30 Polymer Technology Corporation Nettoyant a teneur d'abrasifs pour verres d'optique
JPS6021718B2 (ja) * 1980-12-16 1985-05-29 ライオン株式会社 液体クレンザ−組成物
US4396525A (en) * 1981-09-14 1983-08-02 Lever Brothers Company Phosphate free liquid scouring composition
NZ205274A (en) * 1982-08-20 1986-01-24 Unilever Plc Liquid scouring cleanser compositions;abrasive has certain range of particle sizes

Also Published As

Publication number Publication date
EP0214540A3 (en) 1988-05-25
GB8522526D0 (en) 1985-10-16
JPH0455637B2 (fr) 1992-09-03
JPS6270497A (ja) 1987-03-31
DE3675301D1 (de) 1990-12-06
EP0214540A2 (fr) 1987-03-18

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