FR3111908A1 - Acid pH soap or shampoo bar - Google Patents
Acid pH soap or shampoo bar Download PDFInfo
- Publication number
- FR3111908A1 FR3111908A1 FR2006702A FR2006702A FR3111908A1 FR 3111908 A1 FR3111908 A1 FR 3111908A1 FR 2006702 A FR2006702 A FR 2006702A FR 2006702 A FR2006702 A FR 2006702A FR 3111908 A1 FR3111908 A1 FR 3111908A1
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- soap
- process according
- acid
- oil
- paste
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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
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/045—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps containing substances which prevent the deterioration of soaps, e.g. light or heat stabilisers or antioxidants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0216—Solid or semisolid forms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
- A61K8/365—Hydroxycarboxylic acids; Ketocarboxylic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/37—Esters of carboxylic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
- A61K8/44—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
- A61K8/442—Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof substituted by amido group(s)
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
-
- 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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
- C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
- C11D10/042—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap based on anionic surface-active compounds and soap
-
- 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
- C11D13/00—Making of soap or soap solutions in general; Apparatus therefor
-
- 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
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/22—Organic compounds, e.g. vitamins
- C11D9/26—Organic compounds, e.g. vitamins containing oxygen
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Birds (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Emergency Medicine (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Detergent Compositions (AREA)
- Cosmetics (AREA)
Abstract
Procédé de fabrication d’un savon ou une barre de shampoing acide, le procédé comprenant une étape préalable de saponification d’une huile ou de fonte d’un savon ou d’extrusion d’un savon, pour obtenir une pâte de savon chaude, caractérisé en ce qu’il comprend une étape d’ajout et de mélange, dans la pâte de savon chaude : d’un dérivé estérifié des acides gras de l’huile de coco, d’un acide, d’une huile végétale.A method of making a soap or an acid shampoo bar, the method comprising a prior step of saponifying an oil or melting a soap or extruding a soap, to obtain a hot soap paste, characterized in that it comprises a step of adding and mixing, in the hot soap paste: an esterified derivative of the fatty acids of coconut oil, an acid, a vegetable oil.
Description
L’invention se rapporte à un savon de pH acide (notamment égal à 6), élaboré avec un corps gras saponifié.The invention relates to a soap with an acid pH (in particular equal to 6), produced with a saponified fatty substance.
Tous les savons ont un pH alcalin, compris entre 8 et 11. La peau ayant un pH acide, un savon à pH acide qui respecterait le pH de la peau est souvent réclamé par les consommateurs.All soaps have an alkaline pH, between 8 and 11. Since the skin has an acid pH, an acid pH soap that respects the pH of the skin is often requested by consumers.
De plus, pour le lavage des cheveux, il est préférable d’utiliser un produit acide pour permettre un démêlage des cheveux. En effet, un pH alcalin (supérieur à 7) provoque un écartement des écailles des cheveux et peut les rendre rêches et difficiles à coiffer.In addition, for hair washing, it is preferable to use an acidic product to allow hair detangling. Indeed, an alkaline pH (above 7) causes the scales of the hair to spread and can make them rough and difficult to style.
Or, un savon par nature ne peut avoir un pH acide.However, a soap by nature cannot have an acid pH.
Un premier objet de l’invention est de fournir un procédé physico-chimique permettant d’abaisser le pH du savon et d’obtenir un savon acide pour le lavage du corps et des cheveux. Pour obtenir une formule adaptée au lavage des cheveux, le pH du savon doit être abaissé à 6. Le savon est, par nature, alcalin, de pH compris entre 8 et 11. Lorsqu’un savon est placé en milieu acide, il précipite, c’est-à-dire que les acides gras se séparent de la soude, détériorant ainsi les propriétés du savon (texture qui devient huileuse, instable et floculeuse). Ceci a été vérifié par le demandeur, par l’expérience.A first object of the invention is to provide a physico-chemical process making it possible to lower the pH of the soap and to obtain an acid soap for washing the body and the hair. To obtain a formula suitable for washing hair, the pH of the soap must be lowered to 6. The soap is, by nature, alkaline, with a pH between 8 and 11. When a soap is placed in an acid medium, it precipitates, that is to say, the fatty acids separate from the soda, thus deteriorating the properties of the soap (texture which becomes oily, unstable and flocculent). This has been verified by the applicant, by experience.
Un deuxième objet de l’invention est de fournir un tel procédé de fabrication qui soit simple, non-polluant, permettant l’obtention d’un produit biodégradable. L’invention se distingue ainsi des procédés de fabrication polluants, notamment ceux mettant en œuvre la chimie du chlore (gaz chlorés, tout dérivé du chlore). L’invention se distingue ainsi également des procédés mettant en œuvre des matières premières tensio-actives donnant les fonctions primaires au shampoing (laver, mousser) issues de procédés de fabrication polluants (ethoxylation avec le laureth sulfate de sodium).A second object of the invention is to provide such a manufacturing process which is simple, non-polluting, making it possible to obtain a biodegradable product. The invention is thus distinguished from polluting manufacturing processes, in particular those implementing chlorine chemistry (chlorinated gases, any derivative of chlorine). The invention is thus also distinguished from the processes using surfactant raw materials giving the primary functions to the shampoo (washing, lathering) resulting from polluting manufacturing processes (ethoxylation with sodium laureth sulphate).
Un troisième objet de l’invention est de fournir un procédé de fabrication répondant à au moins un des objectifs ci-dessus et n’utilisant pas de tensio-actif issu de la sulfatation, bien que ce procédé soit autorisé par le référentiel Cosmos (coco-sulfate).A third object of the invention is to provide a manufacturing process that meets at least one of the above objectives and does not use a surfactant derived from sulfation, although this process is authorized by the Cosmos standard (coco -sulfate).
Un autre objet de l’invention est de fournir un procédé répondant à au moins un des objectifs ci-dessus et qui ne mette pas en œuvre de matière première synthétique, alors que la grande majorité des matières premières montrant une efficacité pour conditionner le cheveu (effet brillant, démêlage facile, douceur du cheveu) sont apportés par des matières premières synthétiques telles que silicones, composés cationiques du type polyquaternium ou chlorure de cétrimonium. Il existe dans cette catégorie très peu de produits d’origine naturelle, leur efficacité est de plus vraiment limitée par rapport aux molécules de synthèse.Another object of the invention is to provide a process that meets at least one of the above objectives and which does not use synthetic raw materials, whereas the vast majority of raw materials showing effectiveness in conditioning the hair ( shiny effect, easy detangling, softness of the hair) are provided by synthetic raw materials such as silicones, cationic compounds of the polyquaternium type or cetrimonium chloride. There are very few products of natural origin in this category, their effectiveness is also really limited compared to synthetic molecules.
Un autre objet de l’invention est de fournir un procédé répondant à au moins un des objectifs ci-dessus, permettant d’obtenir une texture conforme et un savon efficace, sans utiliser de gélifiants (polymères synthétiques), de conditionneurs (silicones, polyquaterniums), de tensio-actifs (PEG) et de conservateurs (parabens), conformément à la Charte Alepia (Nature et éthique). L’invention se distingue ainsi des formules commercialisées par la concurrence, qui contiennent un grand nombre de ces matières premières.Another object of the invention is to provide a method that meets at least one of the above objectives, making it possible to obtain a consistent texture and an effective soap, without using gelling agents (synthetic polymers), conditioners (silicones, polyquaterniums ), surfactants (PEG) and preservatives (parabens), in accordance with the Alepia Charter (Nature and ethics). The invention thus differs from the formulas marketed by the competition, which contain a large number of these raw materials.
Un autre objet de l’invention est de fournir un procédé répondant à au moins un des objectifs ci-dessus et utilisant le savon d’Alep, ou tout autre type de savon.Another object of the invention is to provide a method meeting at least one of the above objectives and using Aleppo soap, or any other type of soap.
Un autre objet de l’invention est de fournir un procédé répondant à au moins un des objectifs ci-dessus et utilisant une formulation de base la plus simple possible, afin de limiter les interactions et offrir au consommateur un produit naturel, et avec le moins d’ingrédients possible. La simplicité recherchée de notre formule est une difficulté supplémentaire. En effet, la complexité des interactions chimiques à prévoir et à étudier a pour origine le nombre et la variété des matières premières contenues dans une formule cosmétique. Chaque formule peut contenir jusqu’à plus de 15 matières premières, chacune pouvant contenir de un à cinq, ou plus, ingrédients. Chaque ingrédient a ses incompatibilités, ses contraintes de pH, de température, qui sont à prendre en compte lors du mélange. Il existe des risques d’incompatibilité entre les ingrédients d’une formule biologique et le savon. Les risques d’incompatibilité sont notamment liés au pH pour un savon acide.Another object of the invention is to provide a method meeting at least one of the above objectives and using the simplest possible base formulation, in order to limit interactions and offer the consumer a natural product, and with the least possible ingredients. The sought-after simplicity of our formula is an additional difficulty. Indeed, the complexity of the chemical interactions to be predicted and studied stems from the number and variety of raw materials contained in a cosmetic formula. Each formula can contain up to more than 15 raw materials, each of which can contain from one to five, or more, ingredients. Each ingredient has its incompatibilities, its pH and temperature constraints, which must be taken into account when mixing. There are risks of incompatibility between the ingredients of an organic formula and the soap. The risks of incompatibility are particularly related to the pH for an acid soap.
Un autre objet de l’invention est de fournir un procédé répondant à au moins un des objectifs ci-dessus et permettant d’obtenir un produit stable et de texture conforme et agréable.Another object of the invention is to provide a process that meets at least one of the above objectives and makes it possible to obtain a stable product with a consistent and pleasant texture.
A ces fins, il est proposé, selon un premier aspect, un procédé de fabrication d’un savon ou une barre de shampoing acide, le procédé comprenant une étape préalable de saponification d’une huile ou de fonte d’un savon ou d’extrusion d’un savon, pour obtenir une pâte de savon chaude, caractérisé en ce qu’il comprend une étape d’ajout et de mélange, dans la pâte de savon chaude :For these purposes, there is proposed, according to a first aspect, a method for manufacturing a soap or an acid shampoo bar, the method comprising a prior step of saponifying an oil or melting a soap or extrusion of a soap, to obtain a hot soap paste, characterized in that it comprises a step of adding and mixing, in the hot soap paste:
- d’un dérivé estérifié des acides gras de l’huile de coco,- an esterified derivative of fatty acids from coconut oil,
- d’un acide,- an acid,
- d’une huile végétale.- a vegetable oil.
Le procédé présente les caractères suivants, le cas échéant combinés :The process has the following characteristics, combined where appropriate:
- le dérivé estérifié des acides gras de l’huile de coco est le Sodium Cocoyl Isethionate ;- the esterified fatty acid derivative of coconut oil is Sodium Cocoyl Isethionate;
- l’acide est l’acide citrique ;- the acid is citric acid;
- l’huile végétale est l’huile d’olive vierge ;- the vegetable oil is virgin olive oil;
- un ajout d’un hydrolat de lavande est effectué dans la pâte de savons chaude ;- a lavender hydrosol is added to the hot soap paste;
- l’étape d’ajout et de mélange dans la pâte de savons chaude, du dérivé estérifié des acides gras de l’huile de coco, d’un acide et d’une huile végétale, est réalisée avec maintien en température de la pâte de savons chaude ;- the step of adding and mixing in the hot soap paste, the esterified derivative of the fatty acids of coconut oil, an acid and a vegetable oil, is carried out with maintaining the temperature of the paste hot soaps;
- la température de la pâte de savon chaude est maintenue entre 70°C et 90°C, de préférence à 80°C ;- the temperature of the hot soap paste is maintained between 70°C and 90°C, preferably at 80°C;
- l’étape d’ajout et de mélange est réalisée sous agitation constante ;- the addition and mixing step is carried out with constant stirring;
- une huile essentielle est ajoutée dans la pâte de savon chaude ;- an essential oil is added to the hot soap paste;
- l’étape de saponification préalable est réalisée à chaud ou à froid ;- the preliminary saponification step is carried out hot or cold;
- l’étape d’ajout et de mélange est effectuée jusqu’à obtention d’une pâte de pH compris entre 5 et 7, de préférence égal à 6 ;- the step of adding and mixing is carried out until a paste with a pH of between 5 and 7, preferably equal to 6, is obtained;
- le savon fondu dans l’étape préalable de fonte ou d’extrusion d’un savon est réalisée pour un savon obtenu par saponification d’huile végétale, de préférence huile d’olive.- the melted soap in the preliminary step of melting or extruding a soap is carried out for a soap obtained by saponification of vegetable oil, preferably olive oil.
Il est proposé, selon un deuxième aspect, un savon ou une barre de shampoing obtenu par le procédé qui vient d’être proposé, le savon ou la barre de shampoing ayant un pH acide, de préférence égal à environ 6.There is proposed, according to a second aspect, a soap or a shampoo bar obtained by the process which has just been proposed, the soap or the shampoo bar having an acid pH, preferably equal to approximately 6.
Une formule de base choisie pour le savon acide / barre de shampoing est par exemple la suivante : savon classique, comme le savon d’Alep (anionique), acide citrique pour abaisser le pH, tensio-actif anionique (Sodium cocoyl isethionate SCI, dérivé estérifié des acides gras de l'huile de coco), huile d’olive vierge pour le surgraissage.A basic formula chosen for the acid soap / shampoo bar is for example the following: classic soap, such as Aleppo soap (anionic), citric acid to lower the pH, anionic surfactant (Sodium cocoyl isethionate SCI, derivative esterified fatty acids from coconut oil), virgin olive oil for overgreasing.
Cette formulation permet de surmonter les difficultés mentionnées en introduction, et notamment la précipitation du savon, la viscosité de la formule insatisfaisante, l’efficacité à travailler, le déphasage.This formulation makes it possible to overcome the difficulties mentioned in the introduction, and in particular the precipitation of the soap, the viscosity of the unsatisfactory formula, the efficiency to work, the phase shift.
La saponification de l’huile est élaborée à chaud ou à froid. Quand celle-ci est complète, le Sodium Cocoyl Isethionate (SCI) est ajouté dans la pâte de savon chaude, ainsi que l’hydrolat de lavande et l’acide citrique.The saponification of the oil is produced hot or cold. When this is complete, Sodium Cocoyl Isethionate (SCI) is added to the hot soap paste, along with lavender hydrosol and citric acid.
Sous l’action de l’acide citrique, et de la chaleur (80°C), la pâte de savon précipite et il s’en suit un déphasage pour les raisons expliquées plus haut. C’est là que le tensio-actif SCI va jouer son rôle de liant, et sous l’effet d’une agitation, le mélange va progressivement devenir homogène comme une mayonnaise ratée qui retrouve peu à peu une bonne consistance, et va prendre une consistance gélatineuse et parfaitement homogène. La température de 80°C doit être maintenue durant tout ce processus.Under the action of citric acid and heat (80°C), the soap paste precipitates and a phase shift ensues for the reasons explained above. This is where the SCI surfactant will play its role as a binder, and under the effect of stirring, the mixture will gradually become homogeneous like a failed mayonnaise which gradually regains a good consistency, and will take on a gelatinous consistency and perfectly homogeneous. The temperature of 80°C must be maintained throughout this process.
A ce stade, on peut y ajouter une huile essentielle ou tout autre parfum.At this stage, you can add an essential oil or any other perfume.
La gelée obtenue va être coulée dans des moules et va y durcir pour devenir un savon acide ou une barre de shampoing à base de savon, biodégradable et à pH acide.The jelly obtained will be poured into molds and will harden there to become an acid soap or a soap-based shampoo bar, biodegradable and at an acid pH.
Dans l’état de la technique, le tensio-actif Sodium Cocoyl Isethionate est un composé qui n’est pas destiné à lier un savon qui s’est dissocié sous l’effet d’un acide.In the state of the art, the surfactant Sodium Cocoyl Isethionate is a compound which is not intended to bind a soap which has dissociated under the effect of an acid.
Claims (13)
- d’un dérivé estérifié des acides gras de l’huile de coco,
- d’un acide,
- d’une huile végétale.A method of making a soap or an acid shampoo bar, the method comprising a prior step of saponifying an oil or melting a soap or extruding a soap, to obtain a hot soap paste, characterized in that it comprises a step of adding and mixing, in the hot soap paste:
- an esterified derivative of fatty acids from coconut oil,
- an acid,
- a vegetable oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2006702A FR3111908A1 (en) | 2020-06-26 | 2020-06-26 | Acid pH soap or shampoo bar |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2006702 | 2020-06-26 | ||
| FR2006702A FR3111908A1 (en) | 2020-06-26 | 2020-06-26 | Acid pH soap or shampoo bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR3111908A1 true FR3111908A1 (en) | 2021-12-31 |
Family
ID=72644429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR2006702A Pending FR3111908A1 (en) | 2020-06-26 | 2020-06-26 | Acid pH soap or shampoo bar |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR3111908A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992007931A1 (en) * | 1990-10-30 | 1992-05-14 | The Procter & Gamble Company | Syndet bar with long chain alkyl sulfates for improved processability and bar characteristics |
| US5866144A (en) * | 1996-11-22 | 1999-02-02 | Colgate-Palmolive Co. | Skin cleaning compostition |
| US6384000B1 (en) * | 2001-04-18 | 2002-05-07 | Unilever Home & Personal Care Usa Division Of Conopco, Inc. | Predominantly synthetic bar comprising hydroxy acid salt and specific types and amounts of filler |
-
2020
- 2020-06-26 FR FR2006702A patent/FR3111908A1/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992007931A1 (en) * | 1990-10-30 | 1992-05-14 | The Procter & Gamble Company | Syndet bar with long chain alkyl sulfates for improved processability and bar characteristics |
| US5866144A (en) * | 1996-11-22 | 1999-02-02 | Colgate-Palmolive Co. | Skin cleaning compostition |
| US6384000B1 (en) * | 2001-04-18 | 2002-05-07 | Unilever Home & Personal Care Usa Division Of Conopco, Inc. | Predominantly synthetic bar comprising hydroxy acid salt and specific types and amounts of filler |
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