EP0817829B1 - Liquid scouring composition - Google Patents

Liquid scouring composition Download PDF

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Publication number
EP0817829B1
EP0817829B1 EP96908165A EP96908165A EP0817829B1 EP 0817829 B1 EP0817829 B1 EP 0817829B1 EP 96908165 A EP96908165 A EP 96908165A EP 96908165 A EP96908165 A EP 96908165A EP 0817829 B1 EP0817829 B1 EP 0817829B1
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EP
European Patent Office
Prior art keywords
scouring
composition
filler
dolomite
weight
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EP96908165A
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German (de)
French (fr)
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EP0817829A1 (en
Inventor
Didier Arseguel
Richard Baeza
Patrick Delord
Pierre Goffinet
Brigitte Riviere
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Imerys Talc Luzenac France SAS
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Talc de Luzenac SA
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    • 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
    • C11D3/1233—Carbonates, e.g. calcite or dolomite
    • 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 invention relates to a composition with scouring in liquid form, for cleaning of surfaces or objects such as dishes, sanitary, work plans.
  • liquid there are basically three forms of scouring composition: liquid, powder or paste.
  • the liquid formulations are problematic specific in particular to the settling of the scouring charge in the liquid, which is not found in powders and pastes.
  • the present invention relates to liquids scrub and proposes to solve specific problems liquid scouring compositions.
  • Scouring liquids are well known for household purposes and basically contain a or surfactants, a scouring filler, if if necessary one or more additives (sequestering agent, perfume ...) and the water. Their function is to loosen the dirt and dissolve the soluble parts (grease ).
  • the scouring load of scouring liquids generally consists of a mineral filler finely divided, having an abrasive power suitable for loosen dirt from treated objects without scratching the area.
  • the Mohs hardness scale provides an assessment of the abrasive power of a mineral compound from the most talc stretch (value 1 on the Mohs scale) to the diamond (value 10).
  • silica or quartz as mineral filler (value 7 on the scale): we could for example refer to patents FR 1.523.007 and FR 1.523.009 which describe the use of silica as a scouring filler.
  • siliceous compounds have been found to be too aggressive for surfaces and currently we use less hard compounds, preferably calcite and dolomite (values 3 and 4 on the Mohs scale), which constitute a good compromise allowing to obtain a good scouring efficiency without damaging or scratching surfaces processed.
  • the invention relates to a scouring liquid of above type, in which the scouring charge is calcite and / or dolomite base.
  • the first defect linked to insufficient scouring power could be solved by mixing some proportion of silica of greater hardness (value 7 greater than that of calcite or dolomite); however, the introduction of an additional compound complicates the preparation and, above all, the second defect linked to the phase separation remains if the rate of filler: such products including as scouring filler a harder calcite or dolomite and silica mixture must have relatively high charge rates under penalty to become unstable and impossible to store.
  • the reduction in the scouring charge rate leads to a decrease in the scouring power of the composition which is admissible in the case of use highly abrasive silica but is no longer so for less hard minerals such as calcite and / or dolomite.
  • the Romanian patent 60,527 describes a scouring powder which comprises as scouring charge a mineral mixture of dolomite (80%) and talc (20%): according to this patent, the addition of talc to the dolomite preserves the treated surfaces and reduce scratches. Such a document obviously does not provide no instruction to reduce the charge rate of a liquid scouring product while maintaining its stability physical and avoiding a lowering of his power scouring.
  • the object of the invention is to provide a new scouring composition, in the form liquid, whose scouring charge is based on calcite and / or dolomite and which allow savings scouring charge, without addition of rheological agent chemical, while benefiting from a share, scouring power comparable to that of existing liquid products based on calcite and / or dolomite, on the other hand, excellent physical stability allowing long-term storage without risk of phase separation.
  • An objective of the invention is thus to reduce the cost of composition and the amount of suspended products discharged into effluents by its use.
  • Another objective is to facilitate rinsing and limit, during use, deposits at the weir and the packaging cap.
  • Talc means the mineral hydrated magnesium silicate, the mineral chlorite (hydrated magnesium aluminum silicate), i.e. mixture of the two, possibly combined with others minerals in a minority proportion.
  • a scouring charge constituted by a mixture of calcite and / or dolomite and talc makes it possible to reducing the loading rate of a liquid composition scouring without lowering the scouring power of the composition and giving it physical stability satisfactory.
  • the surfactants and, where appropriate, the additives are in quantities comparable to those of known liquid compositions based on calcite and / or dolomite but a significant proportion of scouring charge is replaced by water without harming the scouring efficiency of the composition and its stability physical: this significantly reduces the cost of composition and the pollution it causes during its use.
  • the rinsing of objects treated by means of composition is easier and requires less water, however deposits are limited in the weir and the conditioning cap.
  • the scouring power of a liquid composition in accordance with the invention having a charge rate equal to a value of around 15 to 20% (filler comprising a mixture of calcite and / or dolomite and talc) is about the same than that of a conventional liquid composition at 40% filler, (calcite and / or dolomite alone).
  • the scouring power of the composition liquid of the invention is higher: this effect is very paradoxical since it is obtained by replacing part of calcite or dolomite by a softer compound and reducing the amount of charge incorporated.
  • the scouring power is slightly lower but satisfactory up to a charge rate of approximately 5%.
  • a charge rate included between 15% and 25% and a proportion of water between 65% and 75% which corresponds to a good efficiency compromise scouring / economy, the proportion of surfactant being usually between 4% and 10% and that of miscellaneous additives less than 8%.
  • the proportion of surfactant being usually between 4% and 10% and that of miscellaneous additives less than 8%.
  • the average particle size D 50 of the talc and the dolomite and / or calcite used in the filler is in particular between 3 and 70 microns.
  • the set of comparative tests is executed with a device called a DOITEAU plynometer.
  • a device called a DOITEAU plynometer.
  • On a white formica support uniformly deposit a shoe polish (drying for 1 hour).
  • the support is then cleaned in parallel under conditions defined and reproducible by two sponges, each sponge being packaged as follows: 2g of cream scrub deposited on the sponge moistened with 5g of water after spinning.
  • Scouring efficiency is linked to scouring charge because compositions without scouring charge are ineffective on soiling.
  • FIG. 1 of the single plate illustrates the results obtained in Example 3.
  • the scouring effectiveness of the composition scouring according to the invention is significantly higher than that of the composition of reference, designated Cr1 (same charge rate). He is at note that the reference composition Cr1 is used immediately after homogenization because its stability physics is zero: we almost immediately observe a decantation resulting in separation of the solid phase (mineral filler) and the aqueous liquid phase. This effect negative is not observed with the scouring composition according to the invention, designated Cv1, and this even after a storage for several weeks (three months at room temperature ambient and 40 ° C).
  • the 2 g of scouring composition are directly deposited on the formica support to be cleaned and not in a classic way directly on the sponge moistened with 5 g of water after spinning.
  • the compositions to scouring are identical to those used in Example 1.
  • the scouring effectiveness of the composition scouring according to the invention is higher than that of the reference composition, designated Cr1.
  • composition at 40% load B gives performances of +2.3 compared to the composition to scour.
  • composition at scouring containing charge B has a scouring efficiency far superior to the scouring composition of reference designated Cr2, with scouring charge rate equivalent: 40%% (load weight relative to the weight of the composition).
  • Scouring composition according to the invention Cv1 compared to the benchmark classic scouring composition, designated Cr2
  • the scouring effectiveness of the composition scouring of the invention is greater than that of the classic reference composition, designated Cr2. This effect is observed despite a charge rate scouring reduced by 50% (load weight compared to initial load weight) and a very talc important: 25% (weight of talc relative to the weight of charge).
  • the scouring composition according to the invention also has excellent physical stability: no settling is observed after several weeks storage (three months at room temperature and 40 ° C).

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  • 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)
  • Polishing Bodies And Polishing Tools (AREA)
  • Fire-Extinguishing Compositions (AREA)

Abstract

Liquid scouring composition, including one or more surfactants, a scouring calcite and/or dolomite filler and water, characterised in that the scouring filler comprises a mixture of calcite and/or dolomite and talc. Such a filler allows the proportion of filler in the composition to be reduced while maintaining, and even enhancing, its performance.

Description

L'invention concerne une composition à récurer se présentant sous forme liquide, en vue du nettoyage de surfaces ou d'objets tels que vaisselles, sanitaires, plans de travail.The invention relates to a composition with scouring in liquid form, for cleaning of surfaces or objects such as dishes, sanitary, work plans.

Il existe essentiellement trois formes de composition à récurer : liquide, poudre ou pâte. Les compositions sous forme liquide posent des problèmes spécifiques tenant en particulier à la décantation de la charge récurante dans le liquide, qui ne se retrouvent pas dans les poudres et les pâtes.There are basically three forms of scouring composition: liquid, powder or paste. The liquid formulations are problematic specific in particular to the settling of the scouring charge in the liquid, which is not found in powders and pastes.

La présente invention vise les liquides à récurer et se propose de résoudre les problèmes spécifiques des compositions liquides à récurer.The present invention relates to liquids scrub and proposes to solve specific problems liquid scouring compositions.

Les liquides à récurer sont bien connus pour les usages ménagers et contiennent essentiellement un ou des agents tensioactifs, une charge récurante, le cas échéant un ou des additifs (séquestrant, parfum...) et de l'eau. Ils ont pour fonction de détacher la saleté et d'en solubiliser les parties solubles (graisses...).Scouring liquids are well known for household purposes and basically contain a or surfactants, a scouring filler, if if necessary one or more additives (sequestering agent, perfume ...) and the water. Their function is to loosen the dirt and dissolve the soluble parts (grease ...).

La charge récurante des liquides à récurer est généralement constituée par une charge minérale finement divisée, ayant un pouvoir abrasif approprié pour détacher la saleté des objets traités sans en rayer la surface. L'échelle de dureté Mohs fournit une évaluation du pouvoir abrasif d'un composé minéral depuis le talc le plus tendre (valeur 1 sur l'échelle Mohs) jusqu'au diamant (valeur 10). Dans les années 70, il était habituel d'utiliser comme charge minérale de la silice ou quartz (valeur 7 sur l'échelle) : on pourra par exemple se reporter aux brevets FR 1.523.007 et FR 1.523.009 qui décrivent l'utilisation de silice comme charge récurante. Toutefois ces composés siliceux se sont avérés trop agressifs pour les surfaces et actuellement on utilise des composés moins durs, préférentiellement la calcite et la dolomite (valeurs 3 et 4 sur l'échelle Mohs), qui constituent un bon compromis permettant d'obtenir une bonne efficacité récurante sans endommager ou rayer les surfaces traitées.The scouring load of scouring liquids generally consists of a mineral filler finely divided, having an abrasive power suitable for loosen dirt from treated objects without scratching the area. The Mohs hardness scale provides an assessment of the abrasive power of a mineral compound from the most talc stretch (value 1 on the Mohs scale) to the diamond (value 10). In the 70s it was usual to use silica or quartz as mineral filler (value 7 on the scale): we could for example refer to patents FR 1.523.007 and FR 1.523.009 which describe the use of silica as a scouring filler. However, these siliceous compounds have been found to be too aggressive for surfaces and currently we use less hard compounds, preferably calcite and dolomite (values 3 and 4 on the Mohs scale), which constitute a good compromise allowing to obtain a good scouring efficiency without damaging or scratching surfaces processed.

L'invention vise un liquide à récurer de type ci-dessus visé, dans lequel la charge récurante est à base de calcite et/ou dolomite.The invention relates to a scouring liquid of above type, in which the scouring charge is calcite and / or dolomite base.

Ces liquides contenant de la calcite et/ou dolomite présentent toutefois des inconvénients. Le taux de charge récurante de ces produits (défini par le poids de charge récurante par rapport au poids total du produit liquide) est nécessairement élevé et supérieur à une limite de l'ordre de 40 % environ : en cas de taux inférieur l'on constate en effet que le pouvoir récurant du produit devient insuffisant et surtout que sa stabilité physique devient mauvaise, le produit liquide étant le siège d'une décantation entraínant une séparation de la phase solide (charge minérale) et de la phase liquide aqueuse. Le premier défaut lié à l'insuffisance du pouvoir récurant pourrait être résolu en mélangeant à la charge une certaine proportion de silice de dureté plus grande (valeur 7 supérieure à celle de la calcite ou dolomite) ; toutefois, l'introduction d'un composé supplémentaire complique la préparation et, surtout, le deuxième défaut lié à la séparation des phases subsiste si l'on abaisse le taux de charge : de tels produits comprenant comme charge récurante un mélange calcite ou dolomite et silice plus dure doivent présenter des taux de charge relativement élevés sous peine de devenir instables et impossibles à stocker.These liquids containing calcite and / or Dolomite, however, have drawbacks. The rate of recurrent load of these products (defined by the weight of scouring load relative to the total weight of the product liquid) is necessarily high and above a limit around 40%: in the event of a lower rate, indeed notes that the scouring power of the product becomes insufficient and especially that its physical stability becomes bad, the liquid product being the seat of a decantation resulting in separation of the solid phase (mineral filler) and the aqueous liquid phase. The first defect linked to insufficient scouring power could be solved by mixing some proportion of silica of greater hardness (value 7 greater than that of calcite or dolomite); however, the introduction of an additional compound complicates the preparation and, above all, the second defect linked to the phase separation remains if the rate of filler: such products including as scouring filler a harder calcite or dolomite and silica mixture must have relatively high charge rates under penalty to become unstable and impossible to store.

Il est à noter que le brevet US 3.522.186 résout ce problème de séparation de phases dans le cas d'une charge siliceuse en ajoutant au liquide à récurer un modificateur de rhéologie constitué par un alcool. Toutefois ce modificateur rhéologique (ou tout autre composé viscosifiant qui peut être utilisé dans le même but) est d'un coût supérieur à celui de la charge récurante minérale qu'il permet d'économiser de sorte que cette solution ne présente aucun intérêt sur le plan économique et entraíne même un inconvénient , à savoir celui de remplacer un produit minéral naturel (non polluant et de sédimentation facile dans les eaux résiduaires) par un produit organique constituant une pollution beaucoup plus gênante. De plus, la réduction du taux de charge récurante conduit à une diminution du pouvoir récurant de la composition qui est admissible dans le cas de l'utilisation de silice très abrasive mais ne l'est plus pour des minéraux moins durs tels que la calcite et/ou dolomite.It should be noted that US patent 3,522,186 solves this phase separation problem in the case of a siliceous filler by adding to the scouring liquid a rheology modifier consisting of an alcohol. However, this rheological modifier (or any other viscosifying compound which can be used in the same goal) is more costly than the scouring charge mineral it saves so this solution is of no economic interest and even causes a drawback, namely that of replace a natural mineral product (non-polluting and easy sedimentation in waste water) by a organic product constituting much more pollution annoying. In addition, the reduction in the scouring charge rate leads to a decrease in the scouring power of the composition which is admissible in the case of use highly abrasive silica but is no longer so for less hard minerals such as calcite and / or dolomite.

Il faut rappeler que, à côté des liquides à récurer, il existe des poudres à récurer et des pâtes à récurer qui contiennent des tensioactifs, une charge récurante et des additifs en l'absence de phase aqueuse (poudres) ou en présence de très faibles quantités d'eau (pâte : proportion pondérale d'eau inférieure à 25 %). Plusieurs types de charge récurante ont été proposés pour des produits en poudre ou pâte, mais l'on comprend que les enseignements concernant de telles poudres ou pâtes ne soient d'aucun secours à l'homme du métier pour résoudre les problèmes spécifiques sus-évoqués qui sont liés à la présentation liquide des compositions à récurer visées : problème de stabilité physique de la suspension liquide et problème d'efficacité récurante lorsqu'on abaisse le taux de charge incorporée à l'eau. Ainsi le brevet roumain 60 527 décrit une poudre à récurer qui comporte comme charge récurante un mélange minéral de dolomite (80 %) et de talc (20 %) : selon ce brevet l'addition de talc à la dolomite permet de préserver les surfaces traitées et de réduire les rayures. Un tel document ne fournit évidemment aucun enseignement pour réduire le taux de charge d'un produit récurant liquide en maintenant sa stabilité physique et en évitant un abaissement de son pouvoir récurant. Bien au contraire, ce document indique que l'adjonction de talc dans la poudre rend celle-ci plus douce et limite son pouvoir abrasif, ce qui paraít évident puisque le talc possède la dureté la plus faible dans l'échelle Mohs (valeur 1) : pour maintenir l'efficacité récurante à taux de charge réduit d'une composition liquide, l'homme du métier ne sera en aucun cas tenté de remplacer une partie de la charge récurante calcite et/ou dolomite (dureté Mohs : 3 et 4) par du talc plus tendre (dureté Mohs : 1). On peut également citer pour illustrer les compositions sous forme de pâte, le brevet chinois n° CN 107 9505 A qui vise une pâte à récurer ayant une proportion d'eau comprise entre 15 et 25 % ; la charge récurante est constituée dans ce document d'un mélange minéral silice naturelle ou calcite, et talc. Les mêmes commentaires que ceux formulés à propos du brevet roumain sus-évoqué peuvent être faits sur ce brevet chinois qui ne fournit aucun enseignement pour résoudre les problèmes de stabilité des compositions liquides.It should be remembered that, next to the liquids to scouring, there are scouring powders and scouring that contain surfactants, a filler scouring agent and additives in the absence of an aqueous phase (powders) or in the presence of very small amounts of water (paste: proportion by weight of water less than 25%). Several types of scouring charge have been proposed for powder or paste products, but we understand that the lessons about such powders or pastes be of no help to the skilled person to resolve the specific problems mentioned above which are linked to the liquid presentation of the scouring compositions targeted: problem of physical stability of the liquid suspension and recurring efficiency problem when lowering the rate of charge incorporated into the water. Thus the Romanian patent 60,527 describes a scouring powder which comprises as scouring charge a mineral mixture of dolomite (80%) and talc (20%): according to this patent, the addition of talc to the dolomite preserves the treated surfaces and reduce scratches. Such a document obviously does not provide no instruction to reduce the charge rate of a liquid scouring product while maintaining its stability physical and avoiding a lowering of his power scouring. On the contrary, this document indicates that adding talc to the powder makes it more soft and limits its abrasive power, which seems obvious since talc has the lowest hardness in the Mohs scale (value 1): to maintain efficiency scouring at reduced charge rate of a composition liquid, the skilled person will in no case be tempted to replace part of the calcite scouring filler and / or dolomite (Mohs hardness: 3 and 4) with softer talc (Mohs hardness: 1). We can also cite to illustrate paste compositions, the Chinese patent n ° CN 107 9505 A which aims at a scouring paste having a proportion of water between 15 and 25%; load scouring consists in this document of a mixture mineral natural silica or calcite, and talc. The same comments than those made about the Romanian patent mentioned above can be made on this Chinese patent which does provides no instruction to solve the problems of stability of liquid compositions.

Aucune solution qui permettrait d'abaisser, sans inconvénients, le taux de charge récurante d'une composition liquide à récurer n'est donc actuellement à la disposition de l'homme du métier.No solution that would lower, without drawbacks, the rate of recurrent charge of a liquid scouring composition is therefore currently available to the skilled person.

Une telle réduction du taux de charge récurante serait extrêmement intéressante à deux titres :

  • en premier lieu, une économie de charge (remplacée par de l'eau) conduirait à une réduction du coût du produit (le coût étant un facteur d'importance capitale dans ce domaine d'application ménagère grand public),
  • en outre, la réduction de la quantité de charge utilisée réduirait la proportion des matières en suspension des eaux résiduaires et donc les dépôts dans les conduits, et faciliterait le rinçage des surfaces ou objets traités.
Such a reduction in the scouring charge rate would be extremely interesting for two reasons:
  • in the first place, a saving in load (replaced by water) would lead to a reduction in the cost of the product (cost being a factor of capital importance in this area of household consumer application),
  • in addition, the reduction in the quantity of charge used would reduce the proportion of suspended matter in the waste water and therefore the deposits in the conduits, and would facilitate rinsing of the surfaces or objects treated.

L'invention a pour objectif de fournir une nouvelle composition à récurer, se présentant sous forme liquide, dont la charge récurante est à base de calcite et/ou dolomite et qui permettent de réaliser une économie de charge récurante, sans adjonction d'agent rhéologique chimique, et ce, tout en bénéficiant d'une part, d'un pouvoir récurant d'efficacité comparable à celui des produits liquides existants à base de calcite et/ou dolomite, d'autre part, d'une excellente stabilité physique autorisant un stockage de longue durée sans risque de séparation de phases. The object of the invention is to provide a new scouring composition, in the form liquid, whose scouring charge is based on calcite and / or dolomite and which allow savings scouring charge, without addition of rheological agent chemical, while benefiting from a share, scouring power comparable to that of existing liquid products based on calcite and / or dolomite, on the other hand, excellent physical stability allowing long-term storage without risk of phase separation.

Un objectif de l'invention est ainsi de réduire le coût de la composition et la quantité de produits en suspension rejetés dans les effluents résiduaires par son utilisation.An objective of the invention is thus to reduce the cost of composition and the amount of suspended products discharged into effluents by its use.

Un autre objectif est de faciliter les rinçages et de limiter, lors de l'utilisation, les dépôts au niveau du déversoir et du bouchon du conditionnement.Another objective is to facilitate rinsing and limit, during use, deposits at the weir and the packaging cap.

A cet effet, la composition à récurer sous forme liquide, visée par l'invention, comprend un ou des agents tensioactifs, une charge récurante à base de calcite et/ou dolomite, et de l'eau ; elle peut également comprendre des additifs classiques en faibles proportions tels que séquestrants, parfums... Selon la présente invention, cette composition se caractérise en ce que :

  • la charge récurante comprend, mélangé à la calcite et/ou dolomite, entre 10 % et 40 % de talc (poids de talc par rapport au poids de charge),
  • la charge récurante est incorporée à la composition à un taux pondéral compris entre 5 % et 35 % (poids de charge par rapport au poids de composition liquide),
  • la composition comprend en poids entre 50 % et 90 % d'eau.
To this end, the scouring composition in liquid form, targeted by the invention, comprises one or more surfactants, a scouring filler based on calcite and / or dolomite, and water; it can also include conventional additives in small proportions such as sequestering agents, perfumes, etc. According to the present invention, this composition is characterized in that:
  • the scouring filler comprises, mixed with calcite and / or dolomite, between 10% and 40% of talc (weight of talc relative to the filler weight),
  • the scouring filler is incorporated into the composition at a weight rate of between 5% and 35% (weight of filler relative to the weight of liquid composition),
  • the composition comprises by weight between 50% and 90% of water.

On entend par "talc" soit le minéral silicate de magnésium hydraté, soit le minéral chlorite (silicate de magnésium et d'aluminium hydraté), soit un mélange des deux, associé le cas échéant à d'autres minéraux en proportion minoritaire."Talc" means the mineral hydrated magnesium silicate, the mineral chlorite (hydrated magnesium aluminum silicate), i.e. mixture of the two, possibly combined with others minerals in a minority proportion.

A titre d'exemple préférentiel, le liquide à récurer conforme à l'invention peut présenter la composition pondérale suivante (pourcentages rapportés au poids total de la composition) :

  • entre 8 % et 20 % de calcite et/ou dolomite,
  • entre 2 % et 7 % de talc,
  • entre 4 % et 10 % de tensioactif,
  • entre 0,5 % et 5 % d'agent séquestrant,
  • entre 62 % et 81,5 % d'eau.
As a preferred example, the scouring liquid according to the invention may have the following composition by weight (percentages based on the total weight of the composition):
  • between 8% and 20% calcite and / or dolomite,
  • between 2% and 7% talc,
  • between 4% and 10% of surfactant,
  • between 0.5% and 5% of sequestering agent,
  • between 62% and 81.5% water.

Les inventeurs ont mis en évidence que, de façon inattendue, une charge récurante constituée par un mélange de calcite et/ou dolomite et de talc permet de réduire le taux de charge d'une composition liquide récurante sans abaisser le pouvoir récurant de la composition et en lui conférant une stabilité physique satisfaisante. Dans la composition liquide conforme à l'invention, les agents tensioactifs et le cas échéant les additifs sont en quantités comparables à celles des compositions liquides connues à base de calcite et/ou dolomite mais une proportion notable de charge récurante est remplacée par de l'eau sans que cela nuise à l'efficacité récurante de la composition et à sa stabilité physique : on réduit ainsi très notablement le coût de la composition et la pollution qu'elle entraíne lors de son utilisation. On observe en outre que le rinçage des objets traités au moyen de la composition est plus facile et demande moins d'eau, cependant que les dépôts sont limités dans le déversoir et le bouchon de conditionnement.The inventors have shown that, from unexpectedly, a scouring charge constituted by a mixture of calcite and / or dolomite and talc makes it possible to reducing the loading rate of a liquid composition scouring without lowering the scouring power of the composition and giving it physical stability satisfactory. In the liquid composition in accordance with the invention, the surfactants and, where appropriate, the additives are in quantities comparable to those of known liquid compositions based on calcite and / or dolomite but a significant proportion of scouring charge is replaced by water without harming the scouring efficiency of the composition and its stability physical: this significantly reduces the cost of composition and the pollution it causes during its use. We also observe that the rinsing of objects treated by means of composition is easier and requires less water, however deposits are limited in the weir and the conditioning cap.

On a pu mettre en évidence que, de façon totalement inattendue et inexpliquée à l'heure actuelle, le pouvoir récurant d'une composition liquide conforme à l'invention ayant un taux de charge égal à une valeur de l'ordre de 15 à 20 % (charge comprenant un mélange de calcite et/ou dolomite et de talc) est sensiblement le même que celui d'une composition liquide classique à 40 % de charge, (calcite et/ou dolomite seule). Au-dessus de la valeur sus-indiquée, le pouvoir récurant de la composition liquide de l'invention est plus élevé : cet effet est très paradoxal puisqu'il est obtenu en remplaçant une partie de la calcite ou dolomite par un composé plus tendre et en réduisant la quantité de charge incorporée. Au-dessous de ladite valeur, le pouvoir récurant est légèrement inférieur mais satisfaisant jusqu'à un taux de charge de 5 % environ. En pratique, l'on pourra choisir un taux de charge compris entre 15 % et 25 % et une proportion d'eau comprise entre 65 % et 75 % qui correspond à un bon compromis efficacité récurante/économie, la proportion de tensioactif étant de façon habituelle comprise entre 4 % et 10 % et celle des additifs divers inférieure à 8 %. Bien entendu, il est possible le cas échéant, au prix d'une économie moindre, d'augmenter l'efficacité récurante en augmentant le taux de charge. Il est à noter que, dans les plages de valeurs précitées, à taux de charge égal, l'augmentation du poids de talc par rapport au poids de charge augmente la stabilité et l'efficacité récurante de la composition.We were able to demonstrate that, in a way totally unexpected and unexplained at the moment, the scouring power of a liquid composition in accordance with the invention having a charge rate equal to a value of around 15 to 20% (filler comprising a mixture of calcite and / or dolomite and talc) is about the same than that of a conventional liquid composition at 40% filler, (calcite and / or dolomite alone). Above the above-mentioned value, the scouring power of the composition liquid of the invention is higher: this effect is very paradoxical since it is obtained by replacing part of calcite or dolomite by a softer compound and reducing the amount of charge incorporated. Below said value, the scouring power is slightly lower but satisfactory up to a charge rate of approximately 5%. In practice, we can choose a charge rate included between 15% and 25% and a proportion of water between 65% and 75% which corresponds to a good efficiency compromise scouring / economy, the proportion of surfactant being usually between 4% and 10% and that of miscellaneous additives less than 8%. Of course, it is possible if necessary, at the cost of less savings, increase the scouring efficiency by increasing the rate of charge. Note that in the value ranges mentioned above, at equal load rate, the increase in weight of talc relative to the filler weight increases the stability and scouring effectiveness of the composition.

L'invention donne de bons résultats lorsque le mélange minéral constituant la charge récurante est formulée de façon à contenir :

  • sensiblement entre 15 % et 25 % en poids de talc (rapporté au poids de la charge),
  • sensiblement entre 75 % et 85 % en poids de dolomite (rapporté au poids de la charge).
The invention gives good results when the mineral mixture constituting the scouring filler is formulated so as to contain:
  • substantially between 15% and 25% by weight of talc (relative to the weight of the filler),
  • substantially between 75% and 85% by weight of dolomite (relative to the weight of the filler).

La granulométrie moyenne D50 du talc et de la dolomite et/ou calcite utilisés dans la charge est en particulier comprise entre 3 et 70 microns.The average particle size D 50 of the talc and the dolomite and / or calcite used in the filler is in particular between 3 and 70 microns.

Les exemples comparatifs qui suivent sont destinés à illustrer l'invention et ses performances.The following comparative examples are intended to illustrate the invention and its performance.

Le protocole mis en oeuvre pour évaluer dans ces exemples l'efficacité récurante est le suivant :The protocol used to assess in these examples the recurring efficiency is as follows:

L'ensemble des essais comparatifs est exécuté avec un appareil dit plynomètre de DOITEAU. Sur un support de formica blanc, on dépose uniformément une salissure de cirage (séchage durant 1 heure). Le support est ensuite nettoyé parallèlement dans des conditions définies et reproductibles par deux éponges, chaque éponge étant conditionnée de la façon suivante : 2g de crème à récurer déposés sur l'éponge humidifiée de 5g d'eau après essorage.The set of comparative tests is executed with a device called a DOITEAU plynometer. On a white formica support, uniformly deposit a shoe polish (drying for 1 hour). The support is then cleaned in parallel under conditions defined and reproducible by two sponges, each sponge being packaged as follows: 2g of cream scrub deposited on the sponge moistened with 5g of water after spinning.

Sur une des deux éponges est déposée la composition à récurer conforme à l'invention, sur l'autre, la composition de référence. Cette étude comparative sur une même salissure permet d'éviter les variations possibles dues au dépôt de la salissure d'un support à un autre.On one of the two sponges is placed the scouring composition according to the invention, on the other, the reference composition. This comparative study on the same dirt prevents possible variations due to the deposit of dirt from one support to another.

L'ensemble des résultats est la moyenne de quatre expérimentations au cours desquelles les éponges sont croisées afin d'éviter les variations possibles dues à l'état physique de l'éponge. Les résultats d'efficacité récurante de la composition à récurer conforme à l'invention sont exprimés par rapport à l'efficacité récurante de la composition de référence sur une échelle allant de -4 à +4, la valeur 0 représentant l'égalité de l'efficacité récurante. La significativité des écarts sur cette échelle (-4 +4) peut être exprimée de la façon suivante :

  • 0 pas de différence
  • 1 légère différence
  • 2 différence notable
  • 3 différence importante
  • 4 différence très importante.
    • The set of results is the average of four experiments in which the sponges are crossed in order to avoid possible variations due to the physical state of the sponge. The scouring efficiency results of the scouring composition according to the invention are expressed relative to the scouring efficiency of the reference composition on a scale ranging from -4 to +4, the value 0 representing the equality of l scouring efficiency. The significance of the deviations on this scale (-4 +4) can be expressed as follows:
  • 0 no difference
  • 1 slight difference
  • 2 notable difference
  • 3 important difference
  • 4 very important difference.

    • L'efficacité récurante est bien liée à la charge récurante car des compositions sans charge récurante sont inefficaces sur la salissure.Scouring efficiency is linked to scouring charge because compositions without scouring charge are ineffective on soiling.

    La figure 1 de la planche unique illustre les résultats obtenus à l'exemple 3.Figure 1 of the single plate illustrates the results obtained in Example 3.

    EXEMPLE 1EXAMPLE 1

    Composition à récurer conforme à l'invention, désignée Cv1Scouring composition according to the invention, designated Cv1 % en poids pur% by pure weight Charge A : Talc/dolomite 25/75 - d50 = 8,5 µm (soit 5,0 de talc et 15,0 de dolomie),Charge A: Talc / dolomite 25/75 - d50 = 8.5 µm (i.e. 5.0 talc and 15.0 dolomite), 20,020.0 Tensioactif anionique (sel de Na de sulfonate de paraffine en C13-17)Anionic surfactant (Na salt of paraffin sulfonate in C13-17) 3,63.6 Tensioactif non-ionique (Nonyl phénol éthoxylé à 8 OE ; alcool gras en C12-14)Non-ionic surfactant (Nonyl phenol ethoxylated at 8 EO; fatty alcohol C12-14) 2,52.5 Agent séquestrant (Pyrophosphate tétrasodique)Sequestering Agent (Tetrasodium Pyrophosphate) 3,03.0 ParfumPerfume 0,50.5 EauWater 70,470.4 Composition de référence désiqnée Cr1Reference composition designated Cr1 % en poids pur% by pure weight Dolomite - d50 = 10,0 µmDolomite - d50 = 10.0 µm 20,020.0 Tensioactif anionique (identique)Anionic surfactant (identical) 3,63.6 Tensioactif non-ionique (identique)Non-ionic surfactant (identical) 2,52.5 Agent séquestrant (identique)Sequestering Agent (identical) 3,03.0 ParfumPerfume 0,5 0.5 EauWater 70,470.4

    La valeur de l'efficacité récurante de Cv1 comparée à Cr1 est égale à +1,5.The value of the recurring efficiency of Cv1 compared to Cr1 is +1.5.

    L'efficacité récurante de la composition à récurer conforme à l'invention, désignée Cv1, est notablement supérieure à celle de la composition de référence, désignée Cr1 (même taux de charge). Il est à noter que la composition de référence Cr1 est utilisée immédiatement après homogénéisation car sa stabilité physique est nulle : on observe presque immédiatement une décantation entraínant une séparation de la phase solide (charge minérale) et de la phase liquide aqueuse. Cet effet négatif n'est pas observé avec la composition à récurer conforme à l'invention, désignée Cv1, et cela même après un stockage de plusieurs semaines (trois mois à température ambiante et à 40° C).The scouring effectiveness of the composition scouring according to the invention, designated Cv1, is significantly higher than that of the composition of reference, designated Cr1 (same charge rate). He is at note that the reference composition Cr1 is used immediately after homogenization because its stability physics is zero: we almost immediately observe a decantation resulting in separation of the solid phase (mineral filler) and the aqueous liquid phase. This effect negative is not observed with the scouring composition according to the invention, designated Cv1, and this even after a storage for several weeks (three months at room temperature ambient and 40 ° C).

    EXEMPLE 2EXAMPLE 2

    La méthodologie de mise en oeuvre pour cet exemple a été légèrement modifiée :The implementation methodology for this example has been slightly modified:

    Les 2 g de composition à récurer sont directement déposés sur le support de formica à nettoyer et non pas de façon classique directement sur l'éponge humidifiée de 5 g d'eau après essorage. Les compositions à récurer sont identiques à celles utilisées dans l'exemple 1.The 2 g of scouring composition are directly deposited on the formica support to be cleaned and not in a classic way directly on the sponge moistened with 5 g of water after spinning. The compositions to scouring are identical to those used in Example 1.

    La valeur de l'efficacité récurante de Cv1 comparée à Cr1 est égale à +1,0.The value of the recurring efficiency of Cv1 compared to Cr1 is +1.0.

    L'efficacité récurante de la composition à récurer conforme à l'invention, désignée Cv1, est supérieure à celle de la composition de référence, désignée Cr1.The scouring effectiveness of the composition scouring according to the invention, designated Cv1, is higher than that of the reference composition, designated Cr1.

    Cet exemple confirme totalement le résultat de l'exemple 1 en éliminant tout artefact pouvant être dû au dépôt de la composition à récurer sur l'éponge.This example fully confirms the result of example 1 by eliminating any artifact that may be due depositing the scouring composition on the sponge.

    EXEMPLE 3EXAMPLE 3

    La méthodologie de mise en oeuvre au cours de cet exemple suit la procédure d'évaluation de l'exemple 1. Composition à récurer conforme à l'invention désignée Cv2 dont le taux de charge récurante varie de 10 à 30 % % en poids pur Charge B : Talc/dolomite 15/85 - d50 = 15,5 µm (soit 1,5-4,5 de talc et 8,5-25,5 de dolomie) 10-30 Tensioactif anionique (composé identique à l'exemple 1) 4,7 Tensioactif non-ionique (composé identique à l'exemple 1) 3,2 Agent séquestrant (composé identique à l'exemple 1) 4 Parfum 0,4 Eau 57,7 - 77,7 Composition à récurer de référence classique désignée Cr2 (existant dans le commerce) % en poids pur Calcite - d50 = 40,0 µm 40 Tensioactif anionique 3,7 Tensioactif non-ionique 0,45 Agent séquestrant 1,0 Parfum 0,4 Eau 54,45 The implementation methodology in this example follows the evaluation procedure in Example 1. Scouring composition according to the invention designated Cv2, the scouring charge rate varying from 10 to 30% % by pure weight Charge B: Talc / dolomite 15/85 - d50 = 15.5 µm (i.e. 1.5-4.5 talc and 8.5-25.5 dolomite) 10-30 Anionic surfactant (compound identical to Example 1) 4.7 Non-ionic surfactant (compound identical to Example 1) 3.2 Sequestering agent (compound identical to Example 1) 4 Perfume 0.4 Water 57.7 - 77.7 Classic reference scouring composition designated Cr2 (commercially available) % by pure weight Calcite - d50 = 40.0 µm 40 Anionic surfactant 3.7 Nonionic surfactant 0.45 Sequestering agent 1.0 Perfume 0.4 Water 54.45

    De plus, pour compléter la comparaison, on a préparé une composition à récurer avec un taux de charge B égal à 40 % (taux identique à celui de la composition de référence).In addition, to complete the comparison, we prepared a scouring composition with a rate of load B equal to 40% (rate identical to that of reference composition).

    RésultatsResults

    Figure 00100001
    Figure 00100001

    En outre, la composition à 40 % de charge B donne des performances de +2,3 par rapport à la composition à récurer. In addition, the composition at 40% load B gives performances of +2.3 compared to the composition to scour.

    La courbe de la figure 1 illustre les résultats obtenus (efficacité des compositions avec charge B par rapport à la composition de référence classique).The curve in Figure 1 illustrates the results obtained (effectiveness of compositions with load B compared to the standard reference composition).

    Cet exemple montre que la composition à récurer contenant la charge B a une efficacité récurante largement supérieure à la composition à récurer de référence désignée Cr2, à taux de charge récurante équivalent : 40 % % (poids de charge par rapport au poids de la composition).This example shows that the composition at scouring containing charge B has a scouring efficiency far superior to the scouring composition of reference designated Cr2, with scouring charge rate equivalent: 40%% (load weight relative to the weight of the composition).

    Cet exemple démontre donc que la composition à récurer conforme à l'invention, désignée Cv2, permet de maintenir une efficacité récurante équivalente à la composition à récurer de référence, désignée Cr2, tout en réduisant le taux de charge récurante de façon importante.This example therefore demonstrates that the scouring composition according to the invention, designated Cv2, maintains a scouring efficiency equivalent to the reference scouring composition, designated Cr2, all by reducing the rate of scouring charge so important.

    EXEMPLE 4EXAMPLE 4 Composition à récurer conforme à l'invention Cv1 comparée à la composition à récurer classique de référence, désignée Cr2Scouring composition according to the invention Cv1 compared to the benchmark classic scouring composition, designated Cr2

    On obtient une efficacité récurante de Cv1 par rapport à Cr2 égale à +1,2.We obtain a recurring efficiency of Cv1 with respect to Cr2 equal to +1.2.

    L'efficacité récurante de la composition à récurer de l'invention, désignée Cv1, est supérieure à celle de la composition classique de référence, désignée Cr2. Cet effet est observé malgré un taux de charge récurante réduit de 50 % (poids de charge par rapport au poids initial de charge) et un taux de talc très important : 25 % (poids de talc par rapport au poids de charge). La composition à récurer conforme à l'invention possède également une excellente stabilité physique : aucune décantation n'est observée après plusieurs semaines de stockage (trois mois à température ambiante et à 40° C).The scouring effectiveness of the composition scouring of the invention, designated Cv1, is greater than that of the classic reference composition, designated Cr2. This effect is observed despite a charge rate scouring reduced by 50% (load weight compared to initial load weight) and a very talc important: 25% (weight of talc relative to the weight of charge). The scouring composition according to the invention also has excellent physical stability: no settling is observed after several weeks storage (three months at room temperature and 40 ° C).

    EXEMPLES 5 - 8EXAMPLES 5 - 8

    Ces exemples donnent la composition de crèmes à récurer donnant de bons résultats. Les pourcentages sont donnés en poids pur.

    Figure 00120001
    These examples give the composition of scouring creams giving good results. The percentages are given by pure weight.
    Figure 00120001

    Claims (5)

    1. Scouring composition in liquid form, comprising one or more surface active agents, a scouring filler based on calcite and/or dolomite, and water, characterized in that :
      the scouring filler includes, mixed with calcite and/or dolomite, between 10 % and 40 % of talc (weight of talc based on the filler weight),
      the scouring filler is incorporated in the composition at a concentration comprised between 5 % and 35 % % (weight of filler based on the weight of the composition),
      the composition includes between 50 % and 90 % of water by weight.
    2. Scouring composition in liquid form according to claim 1, characterized in that:
      the filler is incorporated in a concentration by weight of between 15 % and 25 %,
      the composition includes between 4 % and 10 % surface active agents and less than 8 % additives,
      the composition includes between 65 % and 75 % of water.
    3. Scouring composition in liquid form according to one of claims 1 to 2, wherein the scouring filler comprises, by weight, substantially between 15 % and 25 % talc mixed with 75 % to 85 % dolomite.
    4. Scouring composition in liquid form according to one of claims 1, 2 and 3, wherein the talc and dolomite and/or calcite have a mean particle size D50 comprised between 3 and 70 microns.
    5. Scouring composition in liquid form according to claim 1, comprising one or more surface active agents, a scouring filler based on calcite and/or dolomite and talc, a sequestering agent, a perfume and water, characterized by the following weight proportions based on the total weight of the liquid composition:
      between 8 % and 20 % calcite and/or dolomite,
      between 2 % and 7 % talc,
      between 4 % and 10 % surface active agent,
      between 0.5 % and 5 % sequestering agent,
      between 62 % and 81.5 % water.
    EP96908165A 1995-03-27 1996-03-21 Liquid scouring composition Expired - Lifetime EP0817829B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    FR9503662 1995-03-27
    FR9503662A FR2732354B1 (en) 1995-03-27 1995-03-27 SCOURING COMPOSITION IN LIQUID OR CREAM FORM
    PCT/FR1996/000425 WO1996030480A1 (en) 1995-03-27 1996-03-21 Liquid scouring composition

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    EP0817829A1 EP0817829A1 (en) 1998-01-14
    EP0817829B1 true EP0817829B1 (en) 2000-05-24

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    CZ (1) CZ288007B6 (en)
    DE (1) DE69608552T2 (en)
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    EP1272147B1 (en) 2000-04-03 2006-06-21 3M Innovative Properties Company Dental materials with extendable work time, kits, and methods
    BRPI0604286A2 (en) * 2006-10-11 2008-12-23 Bentonit Uniao Nordeste Sa granules for use in formulations of personal care products and / or cleaning products and products containing the granules

    Family Cites Families (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR1007076A (en) * 1948-02-20 1952-04-30 Scouring and polishing product
    US4352678A (en) * 1978-10-02 1982-10-05 Lever Brothers Company Thickened abrasive bleaching compositions
    DE3380356D1 (en) * 1982-09-01 1989-09-14 Unilever Nv Abrasive agglomerates for use in scouring cleaning compositions
    GB8328991D0 (en) * 1983-10-31 1983-11-30 Unilever Plc Liquid scouring compositions
    FR2564104B1 (en) * 1984-05-10 1986-11-28 Saint Marc Lessives SCOURING CREAM AND PROCESS FOR ITS PREPARATION.
    JPS61190599A (en) * 1985-02-18 1986-08-25 石原薬品株式会社 Car washing composition for high pressure spraying
    GB8608429D0 (en) * 1986-04-07 1986-05-14 Unilever Plc Liquid abrasive cleaner compositions
    JPS6383200A (en) * 1986-09-29 1988-04-13 日本板硝子株式会社 Detergent for glass
    JPH0273898A (en) * 1988-09-09 1990-03-13 Dai Ichi Kogyo Seiyaku Co Ltd Liquid cleanser
    GB2228740A (en) * 1989-03-03 1990-09-05 Unilever Plc Cleaning composition
    CN1079505A (en) * 1992-06-05 1993-12-15 安徽电力建设第二工程公司 High-effective cleansing paste

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    CZ288007B6 (en) 2001-03-14
    HUP9801203A3 (en) 2000-11-28
    FR2732354A1 (en) 1996-10-04
    HUP9801203A2 (en) 1998-08-28
    EP0817829A1 (en) 1998-01-14
    DE69608552T2 (en) 2001-02-15
    ES2148741T3 (en) 2000-10-16
    PL322469A1 (en) 1998-02-02
    CZ304897A3 (en) 1998-01-14
    DE69608552D1 (en) 2000-06-29
    ATE193316T1 (en) 2000-06-15
    PL180357B1 (en) 2001-01-31
    FR2732354B1 (en) 1997-05-30
    AU5150196A (en) 1996-10-16

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