EP0601990B1 - Composition acide de nettoyage auto-épaissie - Google Patents

Composition acide de nettoyage auto-épaissie Download PDF

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Publication number
EP0601990B1
EP0601990B1 EP93870120A EP93870120A EP0601990B1 EP 0601990 B1 EP0601990 B1 EP 0601990B1 EP 93870120 A EP93870120 A EP 93870120A EP 93870120 A EP93870120 A EP 93870120A EP 0601990 B1 EP0601990 B1 EP 0601990B1
Authority
EP
European Patent Office
Prior art keywords
composition
acid
compositions
weight
composition according
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.)
Revoked
Application number
EP93870120A
Other languages
German (de)
English (en)
Other versions
EP0601990A1 (fr
Inventor
Michel Jean Carrie
Eddy Vos
Axel Koenig
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8212289&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0601990(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to CA002150914A priority Critical patent/CA2150914C/fr
Priority to PCT/US1993/011680 priority patent/WO1994013769A1/fr
Priority to US08/446,758 priority patent/US5656580A/en
Priority to MX9307695A priority patent/MX9307695A/es
Publication of EP0601990A1 publication Critical patent/EP0601990A1/fr
Application granted granted Critical
Publication of EP0601990B1 publication Critical patent/EP0601990B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
    • 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
    • C11D1/835—Mixtures of non-ionic with cationic compounds
    • 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
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2082—Polycarboxylic acids-salts thereof
    • 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
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium compounds
    • 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
    • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

  • the present invention relates to cleaning compositions for hard surfaces.
  • the compositions of the present invention are designed for optimum performance in removing limescale and are thickened without the use of a thickener compound.
  • compositions for cleaning hard surfaces including compositions for removing limescale, are well known in the art.
  • Such compositions which are characterized mainly by a strong acidity, are disclosed for instance in EP 496 188.
  • Limescale is mainly found in such places as sinks, toilet bowls and bathtubs, i.e. vertical surfaces. Therefore, it is desirable to give some viscosity to compositions for removing limescale so as to prevent said compositions from running down said vertical surfaces. Indeed thick compositions cling to vertical surfaces, thus they have more time to act on vertical surfaces before they run down said surfaces. It is however undesirable to use thickener compounds in such compositions for various reasons. For instance, thickener compounds may significantly raise formula costs. Also, thickeners may create issues relating to processing and product stability, especially in extreme acidic conditions. Furthermore, thickeners may affect the limescale removing performance of the composition. Finally, thickeners do not contribute to the cleaning performance of the composition.
  • compositions according to the present invention have the advantage that the use of the quaternary ammonium salts cationic surfactants described hereinafter in combination with an acid provides significant disinfectancy benefits. This advantage is particularly useful in a composition which is meant to be used primarily on bathroom and kitchen surfaces.
  • GB 2 071 688 teaches that quaternary ammonium salts can be used to thicken an acidic solution, provided they are combined with an amine or amine oxide.
  • nonionic surfactants are presented as an alternative to the quaternary ammonium salts.
  • EP 188 025 teaches that quaternary ammonium salts can be used to thicken an acidic peroxygen-based solution, provided they are combined with a strong mineral acid.
  • US-4 612 135 discloses a sanitary cleaning composition comprising phosphoric acid, oxalic acid, a nonionic surfactant and a fluorinated quaternary ammonium surfactant.
  • the quaternary ammonium surfactants according to the present invention are not disclosed.
  • US-4 016 089 discloses a denture cleaning concentrate consisting essentially of an aqueous solution containing orthophosphoric acid, alkyl phenyl polyglycolether, quaternary ammonium germicide and a chemical indicator for pH which undergoes a colour change at pH about 4.5.
  • compositions according to the present invention are aqueous compositions comprising from 0.1% to 45% by weight of the total composition of an acid whereby the pH as is of said compositions is of from 0.1 to 4.5, said compositions further comprising a thickening system whereby said compositions are stable and have a viscosity of from 10 to 700 cps at 60 rpm shear rate at 20°c, said thickening system comprises from 0.5% to 15% by weight of the total compositions of a mixture of a nonionic surfactant according to the formula R(CH 2 CH 2 O) n H, wherein R is a primary or secondary, straight or branched alcohol rest having from 8 to 24 carbon atoms, preferably from 12 to 18, and n is from 1 to 15, with a cationic surfactant according to the formula R 1 R 2 R 3 R 4 N + X - , wherein X is a counteranion, R 1 is a C 12-20 hydrocarbon chain and R 2 , R 3 and R 4 are independently selected from H or
  • compositions of the present invention are designed for removing limescale or soils comprising limescale as a main component.
  • they comprise, as a first essential ingredient, an organic or inorganic acid or mixtures thereof.
  • Appropriate acids for use herein are disclosed for instance in EP 411 708, EP 496 188, GB 2 106 927, EP 200 776, and EP 336 878.
  • acids are suitable for use herein from a pure performance viewpoint, it is preferred to avoid the use of strong inorganic acids such as phosphoric acid or HCl, for environmental reasons and for surface safety.
  • Preferred for use herein are organic acids or mixtures thereof.
  • compositions according to the present invention comprise from 0.1% to 45% by weight of the total composition of an acid or mixtures thereof, preferably from 4% to 25%.
  • the compositions according to the present have a pH as is of from 0.1 to 4.5, preferably 0.5 to 2.0, most preferably about 1.0.
  • compositions according to the present invention comprise a thickening system which consists of a mixture of certain cationic surfactants with nonionic surfactants.
  • compositions according to the present invention are free of a thickener compound, i.e. a compound which has the sole purpose of thickening the composition.
  • the suitable cationic surfactants for use herein are according to the formula R 1 R 2 R 3 R 4 N + X - , wherein X is a counteranion, R 1 is a C 12-20 hydrocarbon chain and R 2 , R 3 and R 4 are independently selected from H or C 1-4 hydrocarbon chains.
  • R 1 is a C 14-18 hydrocarbon chain, most preferably C 16 or C 18
  • R 1 , R 2 and R 3 are all three methyl
  • X is halogen, preferably bromide or chloride, most preferably bromide. It is also possible to use mixtures of such cationic surfactants without departing from the spirit of the present invention.
  • Nonionic surfactants for use herein are compounds having the general formula R(CH 2 CH 2 O) n H, wherein R represents a hydrophobic moiety, as defined below, and n represents the average number of ethylene oxide moieties. These compounds are typically obtained by condensing ethylene oxide and with a hydrocarbon having a hydroxyl group, in the presence of an acidic or basic catalyst.
  • the hydrophobic moiety of the nonionic compound is a primary or secondary, straight or branched alcohol having from 8 to 24 carbon atoms, preferably 12 to 18, and n varies from 1 to 15.
  • Such suitable surfactants for use herein are commercially available, for instance from Shell under the trade name Dobanol@, or from BASF under the trade name Lutensol@.
  • compositions according to the present invention comprise from 0.5% to 15% by weight of the total composition of said thickening system, preferably from 1% to 8%.
  • the compositions according to the present invention consequently have a viscosity in the range of from 10 cps to 700 cps at 60 RPM at 20°c, preferably from 20 cps to 200 cps, most preferably 30 cps to 60 cps.
  • the selection of the most appropriate thickening system depends on such factors as the target viscosity, the acid concentration and the limescale removal performance target. In mere terms of viscosity, it has been found that using straight alkyl chains in both the cationic and the nonionic surfactants provides the best viscosity build up.
  • the combination of the cationic surfactant with the nonionic surfactant allows to build viscosity in an aqueous solution of an acid, even a weak organic acid, whereby this system is stable and the limescale removal performance of said viscosified solution is substantially preserved.
  • An appropriate way to proceed in determining a suitable thickening system for a given composition is to start by defining the desired limescale removing performance for said composition, i.e. the type and concentration of acid, and to prepare a corresponding aqueous solution of said acid. Then various combinations of cationic and nonionic surfactants can be tried in order to obtain the target viscosity as a stable composition.
  • stable it is meant herein that the composition undergoes no phase separation during a substantial period of time in a temperature range of from 0°c to 50°c. The most appropriate system can thus be selected by trial and error.
  • compositions according to the present invention may further comprise such optional ingredients as solvents, bleaches, bactericides, perfumes, dyes and the like, provided they are compatible in the acidic medium of the compositions according to the present invention.
  • compositions according to the present invention are further illustrated by the following examples.
  • compositions are prepared by mixing the listed ingredients in the listed proportions.
  • Dobanol 23-3 @ 1.6 2.9 2.1 0.8 0.5 pH as is 1.0 0.9 0.9 0.9 0.9 Viscosity (cps at 60rpm) 47 29 70 270 20 VI VII VIII IX CTAB 3.0 4.2 4.2 5.0 Maleic acid 10.0 12.6 4.2 10.0
  • CTAB stands for a C16 trimethyl ammonium bromide
  • Cetrimide stands for C14 trimethyl ammonium bromide
  • STAB stands for C18 trimethyl ammonium bromide
  • Dobanol @ 23-3 is a C12-C13 ethoxylated alcohol with an average degree of ethoxylation of 3, available from Shell
  • Lutensol @ ON 30 is a C8-C12 ethoxylated alcohol with an average degree of ethoxylation of 3.
  • compositions according to the examples above were stable during 10 days at 50°c.

Claims (6)

  1. Une composition nettoyante aqueuse comprenant de 0,1% à 45%, en poids de la composition totale, d'un acide de telle sorte que le pH tel quel de ladite composition soit de 0,1 à 4,5, ladite composition comprenant en outre un système épaississant, la composition étant stable et présentant une viscosité de 10 à 700 cP à une vitesse de cisaillement de 60tours/min à 20°C, caractérisée en ce que ledit système épaississant comprend de 0,5% à 15%, en poids de la composition totale, d'un mélange d'un tensioactif non ionique répondant à la formule R(CH2CH2O)nH, dans laquelle R représente un résidu alcool primaire ou secondaire, linéaire ou ramifié, comportant de 8 à 24 atomes de carbone, de préférence de 12 à 18, et n vaut de 1 à 15, avec un tensioactif cationique répondant à la formule R1R2R3R4N+X-, dans laquelle X est un contre-anion, R1 est une chaíne hydrocarbonée en C12-20 et R1, R3 et R4 sont choisis indépendamment parmi H ou des chaínes hydrocarbonées en C1-4, ladite composition ne contenant pas de composé peroxy minéral soluble dans l'eau froide.
  2. Une composition selon la revendication 1 qui comprend de 1% à 8% dudit mélange dudit tensioactif non ionique et dudit tensioactif cationique.
  3. Une composition selon les revendications précédentes, caractérisée en ce que ledit acide est un acide organique.
  4. Une composition selon la revendication 3, caractérisée en ce que ledit acide est l'acide maléique.
  5. Une composition selon les revendications précédentes qui comprend de 4% à 25%, en poids de la composition totale, dudit acide.
  6. Une composition selon les revendications précédentes caractérisée en ce que, dans ledit tensioactif cationique, R1 est une chaíne hydrocarbonée en C14-18, tout particulièrement en C16 ou C18, et R1, R2 et R3 sont tous trois groupes méthyle, et X est un bromure ou un chlorure.
EP93870120A 1992-12-04 1993-06-25 Composition acide de nettoyage auto-épaissie Revoked EP0601990B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA002150914A CA2150914C (fr) 1992-12-04 1993-12-02 Composition nettoyante acide autoepaississante
PCT/US1993/011680 WO1994013769A1 (fr) 1992-12-04 1993-12-02 Composition nettoyantes acides auto-epaissies
US08/446,758 US5656580A (en) 1992-12-04 1993-12-02 Acidic cleaning compositions self-thickened by a mixture of cationic and nonionic surfactants
MX9307695A MX9307695A (es) 1992-12-04 1993-12-06 Composicion acuosa limpiadora acida auto-espesada.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92870195 1992-12-04
EP92870195 1992-12-04

Publications (2)

Publication Number Publication Date
EP0601990A1 EP0601990A1 (fr) 1994-06-15
EP0601990B1 true EP0601990B1 (fr) 1998-10-14

Family

ID=8212289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93870120A Revoked EP0601990B1 (fr) 1992-12-04 1993-06-25 Composition acide de nettoyage auto-épaissie

Country Status (3)

Country Link
EP (1) EP0601990B1 (fr)
DE (1) DE69321566T2 (fr)
ES (1) ES2123633T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7153817B2 (en) 2000-02-23 2006-12-26 The Procter & Gamble Company Detergent tablet

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2113723T3 (es) * 1993-11-24 1998-05-01 Unilever Nv Composicion para la eliminacion de incrustaciones calizas.
EP0666304B1 (fr) * 1994-02-03 2000-11-08 The Procter & Gamble Company Compositions de nettoyage acides
DE69426260T2 (de) * 1994-02-03 2001-06-07 Procter & Gamble Saure Reinigungszusammensetzungen
EP0758017B1 (fr) 1995-08-09 2002-10-23 The Procter & Gamble Company Compositions de nettoyage acides
US5981449A (en) * 1995-08-09 1999-11-09 The Procter & Gamble Company Acidic cleaning compositions
EP0875551A1 (fr) * 1997-04-30 1998-11-04 The Procter & Gamble Company Compositions acides de nettoyage auto-épaissantes
GB2348885A (en) * 1999-04-16 2000-10-18 Reckitt & Colman Inc Hard surface cleaning and disinfecting composition
EP1679363B1 (fr) 2005-01-10 2008-07-09 The Procter and Gamble Company Composition de nettoyage pour machines de vaisselle ou de lavage

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0188025A2 (fr) * 1985-01-03 1986-07-23 Unilever N.V. Compositions de blanchiment liquides

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016089A (en) * 1974-11-11 1977-04-05 Regan Glen B Denture cleaning concentrate
GB2071688B (en) * 1980-03-13 1984-02-08 Jeyes Ltd Liquid cleaning and descaling compositions
ZA826902B (en) * 1981-10-01 1984-04-25 Colgate Palmolive Co Safe liquid toilet bowl cleaner
DD230552A3 (de) * 1983-07-07 1985-12-04 Domal Stadtilm Veb Saure, fluessige reinigungsmittel
US4612135A (en) * 1983-08-05 1986-09-16 Sanitary Products Corp. All-purpose sanitary cleaning composition
JP2837405B2 (ja) * 1985-06-10 1998-12-16 花王株式会社 浴室用洗浄剤組成物
US5192460A (en) * 1988-02-10 1993-03-09 Colgate-Palmolive Company Safe acidic hard surface cleaner
DE4014859A1 (de) * 1990-05-09 1991-11-14 Henkel Kgaa Verwendung einer kombination ionischer und nichtionischer tenside
AU624504B2 (en) * 1990-05-09 1992-06-11 S.C. Johnson & Son, Inc. Thickened acid cleaner compositions having improved thermal stability
DK0496188T3 (da) * 1991-01-22 1997-12-15 Procter & Gamble Sammensætning til fjenelse af kalkbelægninger

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0188025A2 (fr) * 1985-01-03 1986-07-23 Unilever N.V. Compositions de blanchiment liquides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7153817B2 (en) 2000-02-23 2006-12-26 The Procter & Gamble Company Detergent tablet

Also Published As

Publication number Publication date
ES2123633T3 (es) 1999-01-16
DE69321566D1 (de) 1998-11-19
EP0601990A1 (fr) 1994-06-15
DE69321566T2 (de) 1999-06-02

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