FR2549375A1 - Evaporator of volatile active principles and appropriate physico-chemical compositions - Google Patents

Abstract

The electric bulb 11 illuminates and heats the air admitted into the base 6. This air heats the glass plate 9 which heats the bottom 5 of the glass receptacle 1 containing a liquid, hydrous and limpid active product 13 which is evaporable, in which a decorative pattern 12 is immersed. The liquid active product 13 is a concentrate of active principles in colloidal suspension in a special solubiliser making the solution aqueous, viscous and limpid.

Description

The present invention relates to an evaporator device, heating, lighting and decorative, capable of gradually evaporating in the ambient atmosphere of a closed enclosure, the active particles emanating from specific liquid, water, viscous and clear compositions, also described in l These active particles with specific properties are in particular moisturizing, deodorizing, perfuming, relaxing, invigorating, insect repellents, bactericidal insecticides or the like.
The device consists of a transparent glass container1 topped with a non-waterproof removable cover; bottom of the vase rests on the flat glass top of a practically airtight base, containing an electric, illuminating and heating bulb.

The process of this device is as follows:
The electric bulb (II) lights up and heats the air admitted into the rod (6). This air heats the glass plate (9) of the base (6).

This heats the adjoining bottom (5) of the glass vase (I) and illuminates the active-composition, liquid, viscous and clear (13) contained in the vase (I), thus making the motif appear in full light. decorative (12), also inserted into the vase (l), in this case submerged artificial flowers.

 The liquid active composition (I3) being thus, indirectly very slightly heated, evaporates slowly and gradually, thereby releasing its active particles into the ambient air, through the peripheral groove (3) and chimneys (4) of the cover (2).

 Various means and numerous devices are known for evaporating odorous active principles, or the like, in the ambient atmosphere, in particular: - devices diffusing these solidified perfumes, sublimable by heat under the effect of currents d air, - turbine or fin devices, for vaporizing liquid active products, - aerosol cans for vaporizing, from time to time @, active liquid products in ambient air, evaporative devices, using wicks or spongy pads saturated with an active liquid.

 Among the means more closely approaching the present invention, it is known: - an air humidifier, consisting of a laminated material, preformed into a plant stem, capable of absorbing, by capillary action, an active liquid contained in the vase in which it soaks; this rod extending, out of the vase, into flower petals, capable of restoring in the ambient air, by evaporation, the active particles of the active liquid that its rod has absorbed, - a device consisting of '' a casserole dish which contains an active liquid and which is fixed near and at an adjustable distance from the electric bulb of a lamp or a chandelier, capable of heating, remotely, the surface of the active liquid for the purpose of its evaporation.

- a fragrance diffuser device, the basic element of which includes an illuminating electric bulb, also intended to heat the air admitted to the device, so that this hot air, directed internally, touches the surface of a liquid -active contained in a removable bottle incorporated and intended for between evaporated.

 The aforementioned known devices are technically excellent, but none of these inventions indicates the necessary physicochemical characteristics of the active compositions to be used in such devices to obtain good results.

 the invention proposes to describe a simple, efficient and decorative device as well as the liquid active product suitable for its proper use.

 This evaporator device and the evaporative liquid active product are located in the fields of Perfumery, Pharmacy and Hygiene.

 This evaporator of specific active ingredients, in the ambient atmosphere of a closed enclosure, is constituted by a portable container, of household art, transparent and of indifferent shape, such as a cup, a pot, a jar , an amphora, a bottle: glass, crystal, transparent plastic. the top of this container, more or less flared to provide sufficient surface for the evaporation of the liquid composition that it will contain, is capped with a non-leaktight cover with grooves around its perimeter, perforated or comprising chimneys, to promote air circulation.

the lower part of this container has a good flat seat allowing it to be placed on a piece of furniture or attached to an independent base, illuminating and slightly warming. This base is made up of a metal or opaque plastic case, the flat and removable cover is a transparent or translucent glass plate. the glass is chosen for its transparency and the slowness of its heating. Inside this base, a low intensity electric bulb (25 or 40 watts) is arranged to illuminate the container, its contents and its interior decoration, through the glass plate and the flat bottom of the transparent container. This hen heats the air trapped inside the housing / base which communicates its heat to the plate glass then at the bottom of the container and consequently, little by little, its content: the liquid, viscous and clear active product.

A low auxiliary electrical resistance can optionally be added and / or a dimmer, to reduce light and heating. An electric coil, lighting and heating can also replace the electric bulb.

At least one decorative, attractive, artistic or advertising object, immersed in the liquid active product, is freely placed or maintained, by any suitable process, inside the transparent container. This object must therefore be, prior to its immersion, rusted to the tests of oxidation, scaling and disintegration. This object can be in particular: flowers, plants, fruits, artificial, in various plastic materials (polyethylene, polypropylene, tergal, nylon ...) or advertising graphics printed on suitable plastic (polyvinyl chloride, for example) or even: curious or attractive objects
A variant of this device provides that its independent base can be replaced by a preformed cavity, in a hemisphere, for example inside the flat base of the container bottom and arranged to receive the electric bulb tile. low intensity (25 or 40 watts).

Another variant of this device in a large amphora-shaped vase, for example, filled with a liquid active product, a second, smaller, transparent vase has been incorporated, in which a decorative motif such as artificial flowers is placed. immersed in pure water, dried flowers placed in the empty vase, or even natural flowers stabilized by closing, under vacuum, the container. Thus, the decorative motif appears as in suspension, in the center of the amphora
It is also envisaged, on the top of the device, the addition of a light diffuser, to illuminate the ceiling by means of incorporated electric bulbs and / or to provide it with a lampshade to reduce the light of the device lit by the base light bulb or its base.

Finally, to reduce the evaporative intensity of the device, the invention has planned to eliminate its heat source, by replacing the electric light and heating bulb supplied by the sector and placed in its base or in the receptacle of its base. or several small light bulbs, powered by a simple electric dry battery
Indeed, such a device, unheated, can evaporate slowly and gradually, for 4 months its active particles in suspension in I liter of liquid active product, at an average temperature of 15 C.

 For the choice of the particular liquid active product, to be used in the device (s) described above, or to be used in any other similar device, requiring a liquid, viscous and clear, evaporable active product, the invention is based on known physico-chemical means but hitherto unexplained as to their precise use in such devices.

 Physically, to obtain a liquid, water-based, viscous and clear active product, carrying specific active principles: moisturizers, deodorants, soothing, perfuming, insect repellents, insecticides, bactericides or others ..., evaporable, more or less quickly in the ambient atmosphere, between 4 C and 100 C, the invention referred to: - the oscillatory movement, known as "Brownian'1, which is carried out in liquids, especially in water, colloidal particles in suspension, electrified in the same sense, therefore repelling each other.

It is this permanent oscillatory movement that the invention uses so that the active particles emanating from its surface evaporate continuously from the surface of the liquid active product.

- the expansion of the liquid active product which, as it cools on the surface, becomes heavier and therefore descends slowly towards the bottom of the container while the liquid active product - from the bottom slowly rises to the surface .

- è the evaporation which occurs continuously, at all temperatures and under all pressures, on the surface of the liquid active product, thus progressively causing, in the ambient atmosphere, the particles in suspension in the active composition, which ehaeunetous conglomerate the active principles of this composition, in proportion to the elements that compose it.

 Chemically, in order to obtain a liquid active product, slowly evaporable, and necessarily viscous and clear to ensure its transparency through a glass container, ethyl alcohol could be used as solvent, in order to dissolve concentrates of various active substances, more or less hydrophilic, more or less lipophilic. This liquid active product would be similar to perfumes and eau de toilette. However, ethanol, too volatile, is not recommended unless its viscosity is increased by the addition of complementary colloids such as gelatin. , gums, dextrin, polyvinyl alcohol, cellulose esters ....

The present invention has preferred as basic solvent: pure water or very slightly alcoholic water, the viscosity of which is adjustable in formulations.
Indeed, the greater or lesser viscosity of the liquid active product determines its greater or lesser speed of evaporation
To obtain a liquid active product, which evaporates slowly in the aforementioned device or in any other evaporating device, requiring a viscous and clear product, the invention provides for formulating a "condensed composition" of relatively high viscosity, conveying a concentrate of principles - specific active ingredients. This "condensed composition" will then be diluted in pure water or in slightly alcoholic water, when the device is supplied.

 For example, to prepare a "condensed compesition" of viscosity varying between 100 and 350 centipoises, soluble in water and clear, from the concentrate of a prestigious perfume created by l'Homme de l'A @ en Parfumerie, in front to be dissolved in ethyl alcohol, good taste, the perfumer-cosmetologist specialist will have the task of increasing the viscosity of this same concentrate and of making it soluble and lim ptde in water, in all proportions.

 For. to do this, it is known to specialists, that certain polyalcohols such as glycerol, mono., di., tri. and hexylene glycol, as well as benzyl alcohol, ethyl phthalate and castor oil, allow, under certain conditions and proportions, to perfect the solubilization: - deterpenated essential oils, essential oils containing acids or derivatives of the aromatic series with free phenolic or aldehylic function, defined and synthetic aromatic substances, more or less soluble in water, as well as alcohols @ ethers-salts and ethers-oxides.

 It is also known to specialists that, in order to obtain clear cosmetic or pharmaceutical preparations, special "solubilizers" are marketed, allowing in certain proportions and conditions1 to dissolve most of the lipophilic and etheric substances in a water medium as well as in alcoholic hydra formulas.

 These special "solubilizers" are also used in small proportions to clarify and make clear alcoholic perfumes, eau de toilette, colognes and various alcoholic lotions, presenting a slight haze after their frosting and filtering.

However, no concentrated composition of perfume, eau de toilette, deodorant, soothing agent, antiseptic, insect repellent, insecticide, bactericide or the like is known, for which it is used. such "solubilizers", in proportions as large as those provided by the invention, that is to say from I to 20 times the weight of the active concentrated composition. Indeed, such a concentrated composition, even very diluted in water, would be much too greasy to be vaporizable on the skin, clothing and in the ambient atmosphere @ On the other hand, such a concentrated composition
active, dissolved in these special "solubilizers" and diluted in water, is perfectly evaporable and without any drawback, in the devices according to the invention.

 The known "solubilizers" marketed, capable of solubilizing in water or in slightly alcoholic water, perfume concentrates and other specific concentrates, are in particular polyoxyt-thylenated sorbitan esters such as: sorbitan monolaurate (20 de) marketed "Montanox 20-SESPIC" the sorbîtan monoleate (20 oé) marketed "Montanox 80-SEPPIC nonylphenol (8 oé) -Cetyl alcohol (17 oé) -diethylene glycol, marketed" solubilizer 5719 "Montanoir-SEPPIC, fatty alcohol 2- Hydroxy-alkoxylated, marketed "Eumulgin 1 HENXEL.

and all other similar "solubilizers" or compositions with equivalent properties.

 NON-LIMITING EXAMPLES OF DEVICES ACCORDING TO THE INVENTION.

Creation of a device for evaporating volatile substances.

 A glass vase (I), of any shape, with a flat bottom (5) capped with a non-waterproof cover (2), comprising an open peripheral periphery groove for ventilation (n) and several ventilation and draft chimneys ( 4). h the interior of the vase (I) is arranged a floral decorative pattern (I2) consisting of artificial flowers, good complexion, in tergal, permanently immersable, in an evaporable liquid active product (I3), according to the invention. This device, simple and decorative, works as it is, without proper lighting, without heating the active product, without any adjustment.

Production of lighting and heating evaporator devices.

A) Device identical to the previous device, but it differs from it by the fact that the flat bottom (5) of the vase (I) rests, perfectly joined, on the flat bottom, in frosted glass (9) with an independent base (6), made of metal or opaque plastic, the bottom (7) of which is internally covered with an asbestos-insulating plate (8)
On this bottom (7/8) which includes a safety valve, is fixed a socket (IO) supporting an electric bulb (II) of 25 watts, supplied by the sector. This electric bulb (II) lights and heats the air trapped in the base (6), lights and indirectly heats the frosted glass plate (9) and maintains a constant temperature there. The glass plate (9) transmits this heat and the light at the flat bottom (5) of the vase (1) which thus gradually heats, from bottom to top, the liquid active product (I3). The light diffuses into the liquid and limpid active product by illuminating the floral motif (I2) and the surrounding atmosphere, through the glass vase.

Unlit, this device can work as it is.

Illuminated and heated, this device causes a slight acceleration of the evaporation of the active particles in suspension in the liquid active product, the temperature of which then stabilizes between 30 and 35 @
Choosing a 40 watt light bulb would bring the temperature of the liquid product between 35 and 40 DC.

 B) Device identical to device A) except that, in the base, the electric bulb was replaced by an electric coil, illuminating but not heating, or by one or more small bulbs added by an electric dry battery of 6 to 12 volts.

 NON-LIMITING EXAMPLES OF LIQUID ACTIVE-PRODUCTS.

Production of a "condensed perfume" at 13 percent, soluble and limpid in all proportions in pure water (distilled, demineralized or rainwater) or in slightly alcoholic water.

Concentrated aromatic concentrate, chosen ......................... 0.013 "solubilizing 5719" from "Montanoir-SEPPIC" ......... .......... 0.085 (Brookfield viscosity at 20 C: 150 cps.) Suitable preservatives .......................... .......... 0.002
to homogenize..0,100
To make a "room fragrance" to be incorporated into a device according to the invention, it suffices to dilute a dose of 0.100 kg.

of a "condensed perfume" R 13 p.cent, for example in the quantity of pure water necessary to fill a device. This dose of 0.100 Kg of "condensed perfume" containing 13% of perfume and 87% of "stabilized solubilizer" is a sufficient dose to supply a device of approximately 1 liter of capacity.

Realization of an "Home fragrance""Condensingperfume" at 13 percent active concentration ..... O, IOO pure, possibly colored or alcoholic water .......... 0.900
to dilute well. I Kg.

However, it is possible to change the proportions of the elements
Condensed perfume / water, either to reduce evaporation or to increase it, for example: active concentration at 5 p.cent at IO p.cent "Condensed perfume" at 13 p.cent ......... 0.385 0.770 pure or slightly alcoholic water 0.615 0.230
I Kg. I Kg.

 This example of condensed perfume "limpid to 13% of concentrated odoriferous active ingredients, dilutable in all proportions in pure or slightly alcoholic water, does not imply a similar weight concentration of concentrated active ingredients for, for example: a "condensed deodorant," a "condensed insect repellent" or others ...

In formulation, the intrinsic power of the active ingredients to be evaporated in the ambient atmosphere must be taken into account.

 Any accessory modification may be made to the invention, both in the device and in the active product it contains, without however departing from its field.

Claims (7)

 R E V E N D I C A T I O N S  I.- Decorative evaporator device (single board) designed to diffuse, slowly and progressively, into the ambient atmosphere of a closed enclosure, specific active particles, moisturizing, deodorizing, perfuming, relaxing, invigorating, insect repellents, insecticides, bactericides , or others, emanating from the liquid active product (13) which it permanently contains, characterized in that this decorative evaporator device consists of a household container (I), necessarily transparent, the shape of which is indifferent but which has c 'its upper prey at least one opening (3, more or less flared, capable of being capped with a removable cover (2), implying ventilation means (4) capable of ensuring ventilation and evaporation of the surface of the liquid active product (13); this product (13) being necessarily clear in order to allow through the transparent container (I), the visibility of at least one decorative object (12), attractive, artistic, and / or advertising, only immersed in the active product (13) or appearing to be.  2.- decorative evaporator device according to claim I, characterized in that cans the transparent container (I) is arranged. free or maintained by any appropriate means, at least one object such as flowers (12), plants, artificial fruits, advertising graphics, a curious or attractive object, directly imr1err0K in the liquid and clear active product (13) .  3.- Decorative evaporator device according to the claims I and 2, characterized in that, in the transparent container (I), there is incorporated, fixed or removable, a second transparent container of indifferent but smaller shape, provided internally with a decorative, attractive, artistic and / or advertising object , immersed in pure water or simply placed in this empty container if the object is not submersible such as fresh or dried flowers; therefore, this second transparent container, empty or filled, bathes in the active product liquid and clear (13) @contained in the transparent container (3 of the device.  4.- decorative evaporator device, according to all the preceding claims, characterized in that it is provided with a lighting and / or heating means, independent or incorporated, allowing on the one hand, to illuminate the interior decorative object while diffusing light and / or on the other hand, slightly heating the active product in order to accelerate its evaporation.  5.- Decorative evaporator device according to all of the preceding claims, characterized in that a means of illuminating the incorporated decorative object while diffusing light and / or while slightly heating the active product, consists in adding this device an inaependent base (6), lighting and / or heating, internally comprising at least one bulb (II) of low inten site ', electric powered by es dry batteries or by the Sector and optionally controlled by a dimmer.  6.- Decorative evaporator device according to all of the preceding claims is characterized in that it comprises an autonomous means of illuminating the incorporated decorative object while diffusing light and / or while slightly heating the liquid active product contained, means which consists in incorporating inside a transparent cavity preformed in the lower part of the evaporator device, at least one electric bulb of low intensity, capable of lighting and / or heating the air admitted into this cavity.  7. Application, of a decorative evaporator device according to all of the preceding claims, for the slow and gradual diffusion, for approximately 4 months, in the ambient atmosphere of a dwelling, of a liquid perfume, characterized in that the container (I) of the decorative evaporator device is a transparent glass vase, the upper opening (3) of which is either open to the outside air or is topped with a removable cover (2) provided with means ventilation (4); inside this vase (I) is an artificial floral branch (12) permanently immersed in an aqueous liquid perfume (13) which is clear, albeit fatty and viscous, obtained by dilution, in all proportions in water , of a "condensed perfume" made up of a subtle composition of odoriferous active-ingredients, in emulsion with colloidal suspension in a "special solubilizer1,, practically anhydrous, limpid and of viscosity varying between 100 and 450 centipoices, this without a proportion being able to go from I times to 20 times the weight of 1 said active composition in order to obtain perfect clarity, the so-called "special solubilizer" $ which can in particular be an oxyethylenated sorbitan ester, a nonylphenol / hydroxyalkoxylated fatty alcohol, or the like; condensed perfume "will be diluted, by the user, in water, in proportions varying with the desired olfactory intensity.