WO2013156714A1 - Degreasing solvent based on coconut vegetable oil - Google Patents

Degreasing solvent based on coconut vegetable oil Download PDF

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Publication number
WO2013156714A1
WO2013156714A1 PCT/FR2013/050798 FR2013050798W WO2013156714A1 WO 2013156714 A1 WO2013156714 A1 WO 2013156714A1 FR 2013050798 W FR2013050798 W FR 2013050798W WO 2013156714 A1 WO2013156714 A1 WO 2013156714A1
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WIPO (PCT)
Prior art keywords
degreasing
vegetable oil
methyl ester
coconut
degreasing solvent
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PCT/FR2013/050798
Other languages
French (fr)
Inventor
Sébastien LAGNES
Original Assignee
Societe De Developpement Chimique Et D'outillage
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Publication of WO2013156714A1 publication Critical patent/WO2013156714A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2068—Ethers
    • 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
    • C11D3/2093—Esters; Carbonates
    • 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
    • C11D3/43—Solvents
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds

Definitions

  • the present invention relates to hard surface treatment agents in the field of industry and more particularly relates to a dielectric solvent-based vegetable composition thus endowed with degreasing properties in order to eliminate grease and other soiling present on the surface of workpiece materials. mechanical or machined for example.
  • cleaning agents more specifically referred to in the context of the present invention as "degreasing solvents" are widely used in various industries where it is necessary to clean and / or degrease metal parts such as tools, molds industrial equipment, electrical equipment, etc.
  • degreasing solvents are often based on synthetic products from the petrochemical industry. These solvents, which certainly have a strong degreasing power, nevertheless alter, to a greater or lesser extent, the functioning of the ecosystem with a significant impact on the environment and human health.
  • VOCs volatile organic compounds
  • the invention thus proposes a new degreasing solvent formula which makes it possible to obtain a dielectric strength of the order of 60000 volts and, of the type of that using an ingredient based on coconut vegetable oil, which is remarkable in that it is composed of an anhydrous mixture of:
  • composition which the applicant has developed has been chosen anhydrous because it consists only of a methyl ester derived from coconut oil, a glycol ether and a surfactant, to offer a very good marked improvement in the degreasing power of solvent while allowing to obtain a very high dielectric strength with respect to the usual degreasing solvents.
  • the Applicant has discovered that the methyl esters derived from fatty acids contained in coconut oil have a very high fat dissolving power and are only very volatile. .
  • the methyl esters have an excellent source of carbon for microorganisms, which contributes to the biodegradable properties of said solvent.
  • composition of the solvent, object of the present invention also benefits from the presence of a surfactant to ensure better solubilization and stabilization of the mixture and enhance the detergent properties of the solvent.
  • the volume proportion of said methyl ester derived from coconut vegetable oil is at least 70% of the final composition of the solvent. It is at this minimum concentration of the methyl ester derived from coconut vegetable oil that the applicant has identified optimum degreasing efficiency of the hard surfaces on which the solvent of the present invention has been applied.
  • the volume proportion of glycol ether is at least equal to 10% of the final composition of the solvent.
  • the concentration of the glycol ether must be at least 10% of the total. final product.
  • the Applicant has been able to establish a spectrum of degreasing efficiency of the composition of the solvent of the invention, relating to the length of the carbon chains of the methyl esters used. It was then found that if the composition of the solvent, object of the present invention, had a methyl ester with a carbon chain greater than 16 C, it resulted in a relative efficiency of the degreasing solvent which could leave traces of grease on the surfaces to be cleaned.
  • the methyl ester derived from the coconut vegetable oil will have a carbon chain of less than 16C with a final choice stopped at a methyl ester with a carbon chain of 12. vs.
  • the Applicant has chosen to use a methyl ester derived from the fatty acids contained in coconut oil with a carbon chain equal to 12 C which has the distinction of having excellent degreasing power without however, to release a repulsive odor that can be a brake on its use.
  • the glycol ether used in the composition is dipropyleneglycol monomethylether which is the best reagent of the methyl ester derived from the coconut vegetable oil in order to increase the degreasing power. of the last.
  • the surfactant used in the degreasing solvent is of nonionic nature, thus chosen by the applicant in the family of non-charged agents, because, being excellent conditioning agents, they have good functions. wetting agents and detergents while being advantageously mixed with the other two components of the solvent of the invention and all other classes of surfactants.
  • the nonionic surfactant used is from the family of ethoxylated fatty alcohols which ensures the best stability of the final solvent.
  • the volume proportion of methyl ester derived from the coconut vegetable oil ranges from 70% to 80% of the final composition, a concentration in volume greater than 80% of said methyl ester does not provide the solvent with any other physicochemical advantage.
  • the proportion by volume of glycol ether ranges from 10% to 20% of the total composition of the solvent, a volume concentration greater than 20% of glycol ether providing the solvent with no other physico-chemical advantage.
  • This natural composition offers, in addition to unmatched degreasing properties to guarantee the constancy of the quality level, a dielectric strength of 60000 volts, that is to say that it will be insulating up to this maximum value applied to it. provides ideal conditions for cleaning surfaces that may be subject to electric fields.
  • this particular degreasing solvent composition is entirely biodegradable and not harmful to human health, it also has the particularity of not requiring the use of adjuvants to mask its odor, as is often the case in the usual degreasing compositions.

Abstract

The present invention relates to agents for treating hard surfaces in the industrial sector and concerns more particularly solvents which, making it possible to obtain a dielectric strength of about 60 000 volts, have degreasing properties in order to remove the grease and other soiling present at the surface of materials of mechanical or machined parts, for example. According to the invention, the degreasing solvent is of the type of that which uses an ingredient based on coconut vegetable oil and stands out in that it is made up of an anhydrous mixture of: - a methyl ester derived from coconut vegetable oil, - a glycol ether, - and a surfactant. Uses: industries in which it is necessary to clean and/or degrease metal parts such as tools, moulds, industrial materials, electrical materials, etc.

Description

SOLVANT DE DÉGRAISSAGE À BASE D'HUILE VÉGÉTALE DE NOIX DE COCO  DEGREASING SOLVENT BASED ON VEGETABLE OIL OF COCONUT
DOMAINE D'APPLICATION DE L'INVENTION FIELD OF APPLICATION OF THE INVENTION
La présente invention a trait aux agents de traitement de surfaces dures dans le domaine de l'industrie et concerne plus particulièrement une composition végétale solvanté diélectrique donc douée de propriétés dégraissantes afin d'éliminer les graisses et autres salissures présentes à la surface de matériaux de pièces mécaniques ou usinées par exemple. De tels agents de nettoyage, dénommés plus précisément dans le contexte de la présente invention "solvants de dégraissage", sont largement utilisés dans diverses industries où il est nécessaire de nettoyer et/ou de dégraisser des pièces métalliques comme des outils, des moules, des matériels industriels, des matériels électriques, etc....  The present invention relates to hard surface treatment agents in the field of industry and more particularly relates to a dielectric solvent-based vegetable composition thus endowed with degreasing properties in order to eliminate grease and other soiling present on the surface of workpiece materials. mechanical or machined for example. Such cleaning agents, more specifically referred to in the context of the present invention as "degreasing solvents", are widely used in various industries where it is necessary to clean and / or degrease metal parts such as tools, molds industrial equipment, electrical equipment, etc.
DESCRIPTION DE L'ART ANTÉRIEUR DESCRIPTION OF THE PRIOR ART
Les solvants dégraissants couramment utilisés sont souvent élaborés à base de produits de synthèse issus de l'industrie pétrochimique. Ces solvants qui ont certes un pouvoir dégraissant fort, altèrent néanmoins, de manière plus ou moins importante, le fonctionnement de l'écosystème avec un impact non négligeable sur l'environnement et la santé des personnes.  The commonly used degreasing solvents are often based on synthetic products from the petrochemical industry. These solvents, which certainly have a strong degreasing power, nevertheless alter, to a greater or lesser extent, the functioning of the ecosystem with a significant impact on the environment and human health.
Il existe divers modes d'applications des agents de nettoyage de surfaces traditionnels qui font que, de par leur simple nature, même un utilisateur consciencieux ne peut éviter de polluer le milieu environnant. On pensera ainsi aux applications de type pulvérisation ou encore de de type trempage en bain qui multiplient les risques d ' évaporations , d ' éclaboussures , d'infiltration dans les sols, et de pollution des nappes phréatiques (la plus exposée à la pollution en provenance de la surface) à cause de l'étape finale de nettoyage qui reste le plus souvent le rinçage à l'eau.  There are various modes of application of traditional surface cleaners that, by their very nature, even a conscientious user can not avoid polluting the surrounding environment. In this way, we will think of spray - type or bath - dipping applications, which increase the risk of evaporation, splashing, infiltration into the ground, and groundwater pollution (the most exposed to pollution from from the surface) because of the final cleaning step that most often remains the rinsing with water.
De plus, les solvants pétroliers sont tous des composés organiques volatils (COV). Leur émission dans l'air participe donc non négligemment à la dégradation de la couche d'ozone dans les hautes couches de l'atmosphère (stratosphère).  In addition, petroleum solvents are all volatile organic compounds (VOCs). Their emission into the air thus contributes not negligibly to the degradation of the ozone layer in the upper layers of the atmosphere (stratosphere).
Or, les problématiques environnementales actuelles et les nombreux règlements gouvernementaux pour préserver les besoins du présent sans compromettre la capacité des générations futures à répondre aux leurs, incitent donc fortement les industriels à évoluer technologiquement vers de nouvelles compositions nettoyantes du type biodégradable c'est à dire plus en respect avec la nature dès lors que ces compositions nettoyantes pourront être décomposées (digérées) naturellement par des organismes vivants. However, current environmental issues and numerous government regulations to preserve the needs of the present without compromising the ability of future generations to meet theirs, therefore strongly encourage manufacturers to evolve technologically to new cleaning compositions of the biodegradable type that is to say more respect with nature as these cleaning compositions can be decomposed ( digested) naturally by living organisms.
Il y a donc un besoin évident de développer de nouvelles formules de solvants d'origine naturelle offrant une bonne biodégradabilité et qui, utilisant le moins possible de composants d'origine pétrochimique, permettent de répondre aux attentes croissantes des utilisateurs en permettant à la fois de nettoyer les surfaces, de les rénover et de les protéger le plus efficacement possible .  There is therefore a clear need to develop new formulations of natural solvents offering good biodegradability and which, using as little as possible of petrochemical components, meet the increasing expectations of users by allowing both clean surfaces, renovate them and protect them as effectively as possible.
DESCRIPTION DE L'INVENTION  DESCRIPTION OF THE INVENTION
Partant cet état de fait et des considérations propres de son entreprise consciente de l'intérêt public à vouloir respecter le développement durable, la demanderesse a fait des recherches en vue de mettre au point un solvant de dégraissage qui soit :  Based on this state of affairs and considerations specific to its company conscious of the public interest in wanting to respect sustainable development, the applicant has made researches to develop a degreasing solvent that is:
- respectueux de l'environnement,  - eco-friendly,
- non dangereux pour la santé des personnes,  - not dangerous for the health of persons,
- ayant les mêmes propriétés dégraissantes, si ce n'est plus, que ceux à base de dérivés pétrochimiques,  - having the same degreasing properties, if not more, than those based on petrochemical derivatives,
- et doté en plus d'un caractère isolant afin notamment d'avoir la possibilité de nettoyer toutes sortes de surfaces mais également des surfaces de pièces mécaniques sous tension.  - And in addition to an insulating nature in particular to have the ability to clean all kinds of surfaces but also surfaces of mechanical parts under tension.
L'invention propose ainsi une nouvelle formule de solvant de dégraissage permettant d'obtenir une rigidité diélectrique de l'ordre de 60000 volts et, du type de celui utilisant un ingrédient à base d'huile végétale de noix de coco, remarquable en qu'il est composé par un mélange anhydre de :  The invention thus proposes a new degreasing solvent formula which makes it possible to obtain a dielectric strength of the order of 60000 volts and, of the type of that using an ingredient based on coconut vegetable oil, which is remarkable in that it is composed of an anhydrous mixture of:
un ester méthylique issu d'huile végétale de noix de coco, a methyl ester derived from vegetable oil of coconut,
- un éther de glycol, a glycol ether,
- et un tensioactif.  and a surfactant.
La composition que la demanderesse a mise au point a été choisie anhydre car elle n'est constituée que d'un ester méthylique issu d'huile de noix de coco, d'un éther de glycol et d'un tensioactif, pour offrir une très nette amélioration du pouvoir dégraissant du solvant tout en permettant l'obtention d'une rigidité diélectrique très élevée par rapport aux solvants dégraissants habituels. The composition which the applicant has developed has been chosen anhydrous because it consists only of a methyl ester derived from coconut oil, a glycol ether and a surfactant, to offer a very good marked improvement in the degreasing power of solvent while allowing to obtain a very high dielectric strength with respect to the usual degreasing solvents.
Dans le cadre de ses recherches pour remplacer les produits dérivés pétrochimiques, la demanderesse a découvert que les esters méthyliques dérivés des acides gras contenus dans l'huile de noix coco, présentent un pouvoir dissolvant des graisses très important et n'étaient que très peu volatils. De plus, les esters méthyliques présentent une excellente source de carbone pour les micro- organismes ce qui participe non négligemment aux propriétés biodégradables dudit solvant. As part of its research to replace petrochemical derivatives, the Applicant has discovered that the methyl esters derived from fatty acids contained in coconut oil have a very high fat dissolving power and are only very volatile. . In addition, the methyl esters have an excellent source of carbon for microorganisms, which contributes to the biodegradable properties of said solvent.
Toujours dans le cadre de ses recherches, la demanderesse a découvert de manière assez surprenante que l'association d'éther de glycol à un ester méthylique issu de l'huile végétale de noix de coco avait pour avantage d'augmenter significativement le pouvoir dégraissant de l'ester méthylique rendant ainsi le solvant de l'invention comparable aux solvants traditionnels uniquement à base de dérivés pétrochimiques.  Also in the context of its research, the Applicant has discovered quite surprisingly that the combination of glycol ether with a methyl ester derived from coconut vegetable oil had the advantage of significantly increasing the degreasing power of the methyl ester thus rendering the solvent of the invention comparable to conventional solvents based solely on petrochemical derivatives.
En effet, même si l'association d'éther de glycol est connue dans le domaine des compositions détergentes issues des composés dérivés du pétrole, rien ne laissait à penser qu'elle pouvait agir de la même manière sur les compositions à base d'un ester méthylique. En effet, les esters méthyliques et les dérivés du pétrole n'ont pas la même structure et la chaînes carbonée des esters méthyliques issus d'huiles végétale est beaucoup plus grande que la chaînes carbonée des dérivés du pétrole. Il résulte donc de ce mélange que le pouvoir naturel dégraissant de l'ester méthylique issu des acides gras de l'huile de coco en ressort multiplié.  Indeed, even if the glycol ether combination is known in the field of detergent compositions derived from petroleum-derived compounds, there was no suggestion that it could act in the same way on compositions based on methyl ester. Indeed, methyl esters and petroleum derivatives do not have the same structure and the carbon chain of methyl esters derived from vegetable oils is much larger than the carbon chain of petroleum derivatives. It follows therefore from this mixture that the natural degreasing power of the methyl ester derived from the fatty acids of coconut oil is multiplied.
La composition du solvant, objet de la présente invention, bénéficie aussi de la présence d'un tensioactif afin d'assurer une meilleure solubilisation et stabilisation du mélange et de renforcer les propriétés détergentes du solvant.  The composition of the solvent, object of the present invention, also benefits from the presence of a surfactant to ensure better solubilization and stabilization of the mixture and enhance the detergent properties of the solvent.
Selon un mode de réalisation préférentiel de l'invention, la proportion en volume dudit ester méthylique issu d'huile végétale de noix de coco est au moins égale à 70% de la composition finale du solvant. C'est à cette concentration minimale de l'ester méthylique issu d'huile végétale de noix de coco que la demanderesse a relevé une efficacité optimale de dégraissage des surfaces dures sur lesquelles a été appliquée le solvant de la présente invention . According to a preferred embodiment of the invention, the volume proportion of said methyl ester derived from coconut vegetable oil is at least 70% of the final composition of the solvent. It is at this minimum concentration of the methyl ester derived from coconut vegetable oil that the applicant has identified optimum degreasing efficiency of the hard surfaces on which the solvent of the present invention has been applied.
Selon un autre mode de réalisation préférentielle de l'invention, la proportion en volume d'éther de glycol est au moins égale à 10% de la composition finale du solvant. Pour assurer une bonne interaction avec le volume d'ester méthylique issu de l'huile végétale de noix de coco afin de favoriser l'efficacité du mélange final, la concentration de l'éther de glycol doit au moins s'élever à 10% du produit final.  According to another preferred embodiment of the invention, the volume proportion of glycol ether is at least equal to 10% of the final composition of the solvent. To ensure a good interaction with the volume of methyl ester derived from the coconut vegetable oil in order to promote the effectiveness of the final mixture, the concentration of the glycol ether must be at least 10% of the total. final product.
Dans le cadre des ses recherches, la demanderesse a pu établir un spectre d'efficacité de dégraissage de la composition du solvant de l'invention, relatif à la longueur des chaînes carbonées des esters méthyliques utilisés. Il s'est alors avéré que si la composition du solvant, objet de la présente invention, avait un ester méthylique avec une chaîne carbonée supérieure à 16 C, il en résultait une efficacité relative du solvant de dégraissage qui pouvait laisser subsister des traces de graisses sur les surfaces à nettoyer .  In the context of her research, the Applicant has been able to establish a spectrum of degreasing efficiency of the composition of the solvent of the invention, relating to the length of the carbon chains of the methyl esters used. It was then found that if the composition of the solvent, object of the present invention, had a methyl ester with a carbon chain greater than 16 C, it resulted in a relative efficiency of the degreasing solvent which could leave traces of grease on the surfaces to be cleaned.
Aussi, selon un autre mode de réalisation préférentielle de l'invention, l'ester méthylique issu de l'huile végétale de noix de coco aura une chaîne carbonée inférieure à 16C avec un choix final arrêté à un ester méthylique avec une chaîne carbonée à 12 C.  Also, according to another preferred embodiment of the invention, the methyl ester derived from the coconut vegetable oil will have a carbon chain of less than 16C with a final choice stopped at a methyl ester with a carbon chain of 12. vs.
En effet, si les esters méthyliques dérivés des acides gras contenus dans l'huile de coco sont des chaînes carbonées plus courtes que les esters méthyliques obtenus à partir d'autres huiles végétales, ils n'en présentent pas moins un effet indésirable lié aux esters méthyliques de chaînes carbonées courtes qui est l'odeur désagréable qu'ils dégagent. C'est pourquoi, la demanderesse a choisi d'employer un ester méthylique dérivé des acides gras contenus dans l'huile de noix de coco doté d'une chaîne carbonée égale à 12 C qui présente la particularité d'avoir un excellent pouvoir dégraissant sans pour autant dégager une odeur repoussante pouvant être un frein à son utilisation.  Indeed, if the fatty acid methyl esters contained in the coconut oil are shorter carbon chains than the methyl esters obtained from other vegetable oils, they nevertheless exhibit an undesirable effect related to the esters. methylated short carbon chains which is the unpleasant smell they give off. Therefore, the Applicant has chosen to use a methyl ester derived from the fatty acids contained in coconut oil with a carbon chain equal to 12 C which has the distinction of having excellent degreasing power without however, to release a repulsive odor that can be a brake on its use.
Selon une caractéristique avantageuse de l'invention, l'éther de glycol utilisé dans la composition est le monométhyléther de dipropylèneglycol qui est le meilleur réactif de l'ester méthylique issu de l'huile végétale de noix de coco afin d'accroître le pouvoir dégraissant de ce dernier. Selon une autre caractéristique avantageuse de l'invention, le tensioactif utilisé dans le solvant de dégraissage est de nature non ionique, choisi ainsi par la demanderesse dans la famille des non chargés car, en étant d'excellents agents conditionnant, ils présentent de bonnes fonctions mouillantes et détergentes tout en pouvant être avantageusement mélangés avec les deux autres composants du solvant de l'invention et toutes les autres classes de tensioactifs . According to an advantageous characteristic of the invention, the glycol ether used in the composition is dipropyleneglycol monomethylether which is the best reagent of the methyl ester derived from the coconut vegetable oil in order to increase the degreasing power. of the last. According to another advantageous characteristic of the invention, the surfactant used in the degreasing solvent is of nonionic nature, thus chosen by the applicant in the family of non-charged agents, because, being excellent conditioning agents, they have good functions. wetting agents and detergents while being advantageously mixed with the other two components of the solvent of the invention and all other classes of surfactants.
Selon un autre mode de réalisation préférentielle de l'invention, le tensioactif non ionique utilisé est de la famille des alcools gras éthoxylés qui assure la meilleure stabilité du solvant final.  According to another preferred embodiment of the invention, the nonionic surfactant used is from the family of ethoxylated fatty alcohols which ensures the best stability of the final solvent.
Selon un autre mode de réalisation préférentielle de l'invention, la proportion en volume d'ester méthylique issu de l'huile végétale de noix de coco s'échelonne de 70% à 80 % de la composition finale, une concentration en volume supérieure à 80 % dudit ester méthylique n'apportant au solvant aucun autre avantage physico-chimique .  According to another preferred embodiment of the invention, the volume proportion of methyl ester derived from the coconut vegetable oil ranges from 70% to 80% of the final composition, a concentration in volume greater than 80% of said methyl ester does not provide the solvent with any other physicochemical advantage.
Selon un autre mode de réalisation préférentielle de l'invention, la proportion en volume d'éther de glycol s'échelonne de 10% à 20 % de la composition totale du solvant, une concentration en volume supérieure à 20 % d'éther de glycol n'apportant au solvant aucun autre avantage physico-chimique.  According to another preferred embodiment of the invention, the proportion by volume of glycol ether ranges from 10% to 20% of the total composition of the solvent, a volume concentration greater than 20% of glycol ether providing the solvent with no other physico-chemical advantage.
MODE DE RÉALISATION PRÉFÈRE PREFERRED EMBODIMENT
La composition finale du solvant de dégraissage de l'invention établie par la demanderesse pour répondre le mieux aux différentes problématiques sus évoquées, repose sur le mélange anhydre en volume suivant de :  The final composition of the degreasing solvent of the invention established by the Applicant to best meet the various problems mentioned above, is based on the following anhydrous mixture of:
- 70% à 80 % d'un ester méthylique issu d'huile végétale de noix de coco ayant une chaîne carbonée à 12 C,  - 70% to 80% of a methyl ester derived from vegetable oil of coconut having a carbon chain at 12 C,
- 10% à 20 % de monométhyléther de dipropylèneglycol ,  10% to 20% of dipropylene glycol monomethyl ether,
- et 1 à 20% d'un tensioactif non ionique de la famille des alcools gras éthoxylés.  and 1 to 20% of a nonionic surfactant of the ethoxylated fatty alcohol family.
Cette composition naturelle offre, en plus de propriétés dégraissantes inégalées en garantie de la constance du niveau de qualité, une rigidité diélectrique de 60000 volts, c'est-à-dire qu'elle sera isolante jusqu'à cette valeur maximum appliquée qui lui offre des conditions idéales d'utilisation pour le nettoyage de surfaces susceptibles d'être soumises à des champs électriques. This natural composition offers, in addition to unmatched degreasing properties to guarantee the constancy of the quality level, a dielectric strength of 60000 volts, that is to say that it will be insulating up to this maximum value applied to it. provides ideal conditions for cleaning surfaces that may be subject to electric fields.
Outre le fait que cette composition particulière de solvant de dégraissage est entièrement biodégradable et non nocive pour la santé des personnes, elle présente aussi la particularité de pas nécessiter l'emploi d'adjuvants pour masquer son odeur, comme c'est souvent le cas dans les compositions dégraissantes habituelles.  In addition to the fact that this particular degreasing solvent composition is entirely biodegradable and not harmful to human health, it also has the particularity of not requiring the use of adjuvants to mask its odor, as is often the case in the usual degreasing compositions.
De l'ensemble de ces caractéristiques distinctives découle de manière nouvelle et significative que l'effet technique résultant et exploité dans la composition anhydre de l'invention, est la possibilité de nettoyer des pièces sous très haute tension (jusqu'à 60 000 Volts) ainsi que d'autres substrats graisseux, avec une grande efficacité.  From all these distinctive features, it follows in a new and significant manner that the technical effect resulting from and exploited in the anhydrous composition of the invention is the possibility of cleaning parts at very high voltage (up to 60,000 volts). as well as other greasy substrates, with great efficiency.
On comprend que le solvant de dégraissage qui vient d'être ci- dessus décrit, l'a été en vue d'une divulgation plutôt que d'une limitation. Bien entendu, divers aménagements, modifications et améliorations pourront être apportés à l'exemple ci-dessus, sans pour autant sortir du cadre de l'invention tel que défini dans les revendications .  It is understood that the degreasing solvent which has just been described above has been for the purpose of disclosure rather than limitation. Of course, various arrangements, modifications and improvements may be made to the example above, without departing from the scope of the invention as defined in the claims.

Claims

REVENDICATIONS
1 . Solvant de dégraissage permettant d'obtenir une rigidité diélectrique de l'ordre de 60000 volts et du type de celui utilisant un ingrédient à base d'huile végétale de noix de coco, CARACTÉRISE EN CE QU'il est composé par un mélange anhydre de :  1. Degreasing solvent for obtaining a dielectric strength of the order of 60000 volts and the type of that using an ingredient based on coconut vegetable oil, CHARACTERIZED IN THAT it is composed of an anhydrous mixture of:
un ester méthylique issu d'huile végétale de noix de coco, a methyl ester derived from vegetable oil of coconut,
- un éther de glycol, a glycol ether,
- et un tensioactif,  - and a surfactant,
2 . Solvant de dégraissage selon la revendication 1 , CARACTÉRISE EN CE QUE la proportion en volume dudit ester méthylique issu d'huile végétale de noix de coco est au moins égale à 70% de la composition totale de solvant.  2. Degreasing solvent according to claim 1, CHARACTERIZED IN THAT the volume proportion of said methyl ester derived from coconut vegetable oil is at least 70% of the total solvent composition.
3. Solvant de dégraissage selon la revendication 1 , CARACTÉRISE EN CE QUE la proportion en volume dudit éther de glycol est au moins égale à 10 % de la composition totale de solvant.  3. Degreasing solvent according to claim 1, CHARACTERIZED IN THAT the volume proportion of said glycol ether is at least equal to 10% of the total solvent composition.
4. Solvant de dégraissage selon la revendication 1 , CARACTÉRISE EN CE QUE le susdit ester méthylique a une chaîne carbonée inférieure à 16 C.  4. Degreasing solvent according to claim 1, CHARACTERIZED IN THAT said methyl ester has a carbon chain of less than 16 C.
5 . Solvant de dégraissage selon la revendication 1 , CARACTÉRISE EN CE QUE le susdit éther de glycol est le monométhyléther de dipropylèneglycol .  5. Degreasing solvent according to claim 1, CHARACTERIZED IN THAT said glycol ether is dipropylene glycol monomethyl ether.
6 . Solvant de dégraissage selon la revendication 1 , CARACTERISE EN CE QUE le susdit tensioactif est non ionique.  6. Degreasing solvent according to claim 1, CHARACTERIZED IN THAT said surfactant is nonionic.
7 . Solvant de dégraissage selon les revendications 1 et 4 , CARACTÉRISE EN CE QUE le susdit ester méthylique a une chaîne carbonée à 12 C.  7. Degreasing solvent according to claims 1 and 4, CHARACTERIZED IN THAT the aforesaid methyl ester has a carbon chain at 12 C.
8 . Solvant de dégraissage selon les revendications 1 et 6 , CARACTÉRISE EN CE QUE le susdit tensioactif non ionique est de la famille des alcools gras éthoxylés.  8. Degreasing solvent according to claims 1 and 6, CHARACTERIZED IN THAT said nonionic surfactant is of the ethoxylated fatty alcohol family.
9 . Solvant de dégraissage selon les revendications 1 , 2 , 4 et/ou 7 , CARACTÉRISE EN CE QUE la proportion en volume dudit ester méthylique s'échelonne de 70% à 80 % de la composition totale de solvant .  9. Degreasing solvent according to claims 1, 2, 4 and / or 7, CHARACTERIZED IN THAT the volume proportion of said methyl ester ranges from 70% to 80% of the total solvent composition.
10 . Solvant de dégraissage selon les revendications 1 , 3 et/ou 5 , CARACTÉRISE EN CE QUE la proportion en volume dudit éther de glycol s'échelonne de 10% à 20 % de la composition totale de solvant . 10. Degreasing solvent according to claims 1, 3 and / or 5, CHARACTERIZED IN THAT the volume proportion of said glycol ether ranges from 10% to 20% of the total solvent composition.
11. Solvant de dégraissage selon l'ensemble des revendications 1 à 10, CARACTÉRISE EN CE QU'il est composé par un mélange anhydre en volume de : Degreasing solvent according to Claims 1 to 10, CHARACTERIZED IN THAT it is composed of an anhydrous mixture by volume of:
- 70% à 80 % d'un ester méthylique issu d'huile végétale de noix de coco ayant une chaîne carbonée à 12 C,  - 70% to 80% of a methyl ester derived from vegetable oil of coconut having a carbon chain at 12 C,
- 10% à 20 % de monométhyléther de dipropylèneglycol ,  10% to 20% of dipropylene glycol monomethyl ether,
- et 1 à 20% d'un tensioactif non ionique de la famille des alcools gras éthoxylés.  and 1 to 20% of a nonionic surfactant of the ethoxylated fatty alcohol family.
PCT/FR2013/050798 2012-04-19 2013-04-12 Degreasing solvent based on coconut vegetable oil WO2013156714A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1253611 2012-04-19
FR1253611A FR2989689B1 (en) 2012-04-19 2012-04-19 DEGREASING SOLVENT BASED ON COCONUT VEGETABLE OIL

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3055330A1 (en) * 2016-08-30 2018-03-02 Oleon Nv COLD STABLE DISSOLVING COMPOSITION

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5877133A (en) * 1995-10-05 1999-03-02 Penetone Corporation Ester-based cleaning compositions
US20080271761A1 (en) * 2007-05-03 2008-11-06 United Laboratories,Inc. Cleaning Compositions and Methods of Using Same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5877133A (en) * 1995-10-05 1999-03-02 Penetone Corporation Ester-based cleaning compositions
US20080271761A1 (en) * 2007-05-03 2008-11-06 United Laboratories,Inc. Cleaning Compositions and Methods of Using Same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3055330A1 (en) * 2016-08-30 2018-03-02 Oleon Nv COLD STABLE DISSOLVING COMPOSITION
WO2018041886A1 (en) * 2016-08-30 2018-03-08 Oleon Nv Dissolvent composition, stable under cold conditions

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FR2989689B1 (en) 2014-12-19

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