EP0103325A1 - Scouring cleanser compositions - Google Patents

Scouring cleanser compositions Download PDF

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Publication number
EP0103325A1
EP0103325A1 EP83201197A EP83201197A EP0103325A1 EP 0103325 A1 EP0103325 A1 EP 0103325A1 EP 83201197 A EP83201197 A EP 83201197A EP 83201197 A EP83201197 A EP 83201197A EP 0103325 A1 EP0103325 A1 EP 0103325A1
Authority
EP
European Patent Office
Prior art keywords
abrasive
micrometers
composition according
particles
weight
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.)
Withdrawn
Application number
EP83201197A
Other languages
German (de)
English (en)
French (fr)
Inventor
John Martin Brierley
John Fielden Helliwell
Melvin Scott
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 EP0103325A1 publication Critical patent/EP0103325A1/en
Withdrawn legal-status Critical Current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
    • 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
    • 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

Definitions

  • the present invention relates to scouring cleanser compositions and more particularly to improved scouring cleanser compositions in liquid form.
  • liquid scouring cleansers have been known in the art and have been widely used in the household for the elimination of stubborn soils, greases, burnt materials and stains which are not easily removed by ordinary abrasive- free detergent compositions.
  • the abrasive powders hitherto used in commercial household scouring cleansers have particle sizes ranging from below I micron to about 150 or 200 microns, with an average particle size of between 10 and 50 microns, irrespective of the material used as abrasive.
  • abrasive powders there is a concentration of particles in the range from 10 to 50 microns diameter, with amounts of particles below and above this range decreasing as the difference from the average particle size increases.
  • abrasive powders incorporated in scouring cleansers are in practice made by grinding or crushing minerals, the powders obtained have a wide range of particle sizes. As coarse particles tend to cause scratching and very fine particles are ineffective as abrasives, the commercial producer of abrasive powders used in household scouring cleansers operates a size reduction process in such a wav as to produce an optimum average or mean particle size and as narrow a range of particle sizes centred around this optimum as can be achieved without using a costly classification step.
  • the abrasive powder will be included into the compositions as supplied, but it may be advantageous to decrease the amount of very fine particles in the abrasive in order to get better rinse-away properties. It is believed that especially this very fine particle fraction tends to redeposit on glossy surfaces, thus forming a dull film, if rinsing has not been sufficiently repeated after using the abrasive. Reference is made in this respect to our UK Patent 1,581,433.
  • the particle size of an abrasive is expressed in detail as a distribution curve on a graph, in which the nominal diameter in microns is plotted against cumulative amounts of material in percent by weight.
  • a graph is illustrated in the aforesaid UK Patent 1,581,433 diagram, in which the particle size distributions of four abrasive powders which have been used extensively in household scouring cleansers, namely silica (A), feldspar (B) and calcite (C and D), are given as curves.
  • the mean particle sizes of the abrasives concerned are the sizes at which 50% by weight of the particles are larger and 50% are smaller, and are 22, 22, 27 and 15 microns respectively.
  • the mean particle size is here to be understood to be the median particle size.
  • the present invention provides liquid scouring cleanser compositions comprising a suspending liquid medium, a natural or synthetic detergent surfactant and an abrasive powder with a mean particle size between 4 and 17.5 microns, containing substantially no particles with sizes above 75 microns.
  • the particle size distribution is such that less than 10% is below 4, especially below 5 or even 7 microns.
  • Preferably also less than 10% is above 40, 30 or even 25 microns.
  • the mean particle size to be between 6 and 15 microns or even between 10 and 15 microns.
  • at least 80% of the abrasive has a particle size in the range from 5 to 30 microns or even 6 to 25 microns. The percentages refer to percentages by weight.
  • Suitable for use as the abrasive material are both natural and synthetic abrasives, for example dolomite, precipitated calcium carbonate (aragonite), feldspar, alumina, silica abrasives, such as quartz and quartzite; preferably an abrasive material is used with a hardness on Moh's scale of from 1 to 4.
  • abrasive material is generally present in an amount of from 1 to 65 percent, preferably from 2 to 60 percent by weight of the final composition.
  • the liquid medium 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 12 -C 18 paraffin sulphonates, of C S -C 12 branched or straight chain alkyl sulphates, 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 2 and 10 percent by weight of the final composition.
  • nonionic or zwitterionic detergent material in 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- and/or propylene-oxide with linear primary or secondary C 8 -C l8 alcohols, with C 8 -C 18 fatty acid amides or fatty acid alkylol- amides (both mono- and di-amides), with C 9 -C 18 alkyl phenols and so on.
  • the alkoxylated C 8 -C 18 fatty acid mono- and di- alkylolamides should contain more than one alkylene oxide unit; for example, they should be condensed with e.g. 2 - 5 moles of alkylene oxide such as ethylene oxide.
  • Fatty acid mono- or di-alkylol amides in which the fatty acid radical contains 10 - 16 carbon atoms are also suitable nonionics, such as for instance coco fatty acid mono- or di-ethanol amide.
  • Suitable zwitterionic detergents are trialkyl amine oxides having one long alkyl chain (C 8 -C 18 ) 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 abrasive material.
  • surfactants possibly in combination with other surfactants, are described in British patent specifications 1 167 597, 1 181 607, 1 262 280, 1 303 810, 1 308 190 and 1 418 671.
  • a liquid abrasive cleanser also comprises an electrolyte or mixture of electrolytes,such as alkalimetal- chlorides, -nitrates, -silicates, -borates, -carbonates, -sulphates, -orthophosphates, -pyro- and.-poly-phosphates, -citrates, -nitrilotriacetates and mixtures thereof.
  • the level of electrolyte will range from 0 to 25 percent, preferably from 5 to 20 percent by weight of the liquid medium without the abrasive materials.
  • adjuncts for liquid abrasive cleansers may be included, such as colouring agents, perfumes, fluorescers, hydrotropes, soil-suspending agents, bleaching agents, bleach precursors, enzymes, opacifiers, germicides, humectants, etc.
  • the abrasive materials used were four different calcite abrasive materials I, II, III and IV, having a median particle size of 5, 7, 13 and 27 ⁇ respectively. Their particle size distributions are represented in the accompanying drawing.
  • abrasive materials were used at a level of 50% by weight in the liquid compositions, with the exception of I, which was used at a level of 45% by weight.
  • IV is a material according to the prior art, and is included in the tests as comparison standard.
  • Neat liquid scourer is placed on a 4" perspex square. The product is covered with an identical piece of perspex. Holding the two squares between thumb and finger, they are moved over each other and the grittiness of the product between them assessed on a scale. This is from 0 - smooth to 4 - considerably gritty. A series of products were tested in this way against a standard product, viz. current JIF as sold in the UK.
  • the fingers can readily feel gritty particles when a cream scourer is rubbed between the thumb and fingers.
  • a Tactile Grittiness score can be obtained.
  • a thin layer of Carbon Black is smeared onto pieces of white formica (9" x 4") and panel members are requested to clean a section of the formica surface using product on a piece of moist Terry Towelling.
  • Panellists are then asked to rank each product tested on a 0 - 4 (nil-considerable) grittiness scale.

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)
EP83201197A 1982-08-20 1983-08-16 Scouring cleanser compositions Withdrawn EP0103325A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8223997 1982-08-20
GB8223997 1982-08-20

Publications (1)

Publication Number Publication Date
EP0103325A1 true EP0103325A1 (en) 1984-03-21

Family

ID=10532427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83201197A Withdrawn EP0103325A1 (en) 1982-08-20 1983-08-16 Scouring cleanser compositions

Country Status (14)

Country Link
EP (1) EP0103325A1 (enrdf_load_stackoverflow)
JP (1) JPS5984999A (enrdf_load_stackoverflow)
AU (1) AU1804283A (enrdf_load_stackoverflow)
BR (1) BR8304499A (enrdf_load_stackoverflow)
CA (1) CA1205714A (enrdf_load_stackoverflow)
ES (1) ES525066A0 (enrdf_load_stackoverflow)
GB (1) GB2125428B (enrdf_load_stackoverflow)
GR (1) GR78687B (enrdf_load_stackoverflow)
IN (1) IN158390B (enrdf_load_stackoverflow)
NO (1) NO832990L (enrdf_load_stackoverflow)
NZ (1) NZ205274A (enrdf_load_stackoverflow)
PT (1) PT77222B (enrdf_load_stackoverflow)
ZA (1) ZA836142B (enrdf_load_stackoverflow)
ZW (1) ZW18183A1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564104A1 (fr) * 1984-05-10 1985-11-15 Saint Marc Lessives Creme a recurer et procede pour sa preparation.
EP0214540A3 (en) * 1985-09-11 1988-05-25 Unilever Nv Liquid abrasive cleaner compositions
US6366652B1 (en) 1999-06-10 2002-04-02 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for using a VM tone to prevent a voice announcement in a group call
WO2013078949A1 (en) * 2011-12-01 2013-06-06 Unilever N.V. Liquid composition for cleaning of head surfaces

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8328991D0 (en) * 1983-10-31 1983-11-30 Unilever Plc Liquid scouring compositions
JPS63189499A (ja) * 1987-01-30 1988-08-05 花王株式会社 液体クレンザ−組成物
US5854293A (en) * 1996-09-23 1998-12-29 The Procter & Gamble Company Liquid personal cleansing composition which contain a lipophilic skin moisturizing agent comprised of relatively large droplets
US6066608A (en) * 1996-09-23 2000-05-23 The Procter & Gamble Company Liquid personal cleansing composition which contain a lipophilic skin moisturing agent comprised of relatively large droplets
JP2001003098A (ja) * 1999-06-24 2001-01-09 Toho Chem Ind Co Ltd リンス性良好な微粒子除去用洗浄剤組成物

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2402225A1 (de) * 1974-01-07 1975-07-17 Unilever Nv Giessbare, fliessfaehige massen
GB1534680A (en) * 1977-10-14 1978-12-06 Colgate Palmolive Co Cleaning compositions
US4181633A (en) * 1976-12-01 1980-01-01 Colgate-Palmolive Company Liquid scouring cream containing calcium metasilicate
GB2055118A (en) * 1979-06-25 1981-02-25 Polymer Technology Corp Cleaning contact lenses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3623990A (en) * 1967-06-26 1971-11-30 Procter & Gamble Liquid detergent composition
GB1454895A (en) * 1972-11-15 1976-11-03 Unilever Ltd Scouring powders
US4100096A (en) * 1976-06-04 1978-07-11 Addressograph Multigraph Corp. Cleaner for hydrophilic metal surfaces of lithographic duplicators

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2402225A1 (de) * 1974-01-07 1975-07-17 Unilever Nv Giessbare, fliessfaehige massen
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
GB2055118A (en) * 1979-06-25 1981-02-25 Polymer Technology Corp Cleaning contact lenses

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564104A1 (fr) * 1984-05-10 1985-11-15 Saint Marc Lessives Creme a recurer et procede pour sa preparation.
EP0214540A3 (en) * 1985-09-11 1988-05-25 Unilever Nv Liquid abrasive cleaner compositions
US6366652B1 (en) 1999-06-10 2002-04-02 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for using a VM tone to prevent a voice announcement in a group call
WO2013078949A1 (en) * 2011-12-01 2013-06-06 Unilever N.V. Liquid composition for cleaning of head surfaces
EP2785822A4 (en) * 2011-12-01 2015-12-16 Unilever Nv LIQUID COMPOSITION FOR CLEANING HARD SURFACES

Also Published As

Publication number Publication date
ES8507172A1 (es) 1985-08-16
NZ205274A (en) 1986-01-24
JPS5984999A (ja) 1984-05-16
PT77222A (en) 1983-09-01
NO832990L (no) 1984-02-21
GB2125428B (en) 1987-03-25
GB2125428A (en) 1984-03-07
IN158390B (enrdf_load_stackoverflow) 1986-11-08
GR78687B (enrdf_load_stackoverflow) 1984-09-27
GB8322262D0 (en) 1983-09-21
CA1205714A (en) 1986-06-10
ZA836142B (en) 1985-03-27
PT77222B (en) 1986-07-11
AU1804283A (en) 1984-02-23
ES525066A0 (es) 1985-08-16
ZW18183A1 (en) 1985-03-06
BR8304499A (pt) 1984-04-03

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19840908

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19860424

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BRIERLEY, JOHN MARTIN

Inventor name: SCOTT, MELVIN

Inventor name: HELLIWELL, JOHN FIELDEN