Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures

Definitions

• the present invention relates, on the one hand, to a support device receiving molecules having an activity, either against organisms or undesirable phenomena, or in favor of a desired phenomenon, on the other hand, to a process consisting in ensuring the presence of these molecules at the level of such a support and, on the other hand, to a composition intended to implement this process and / or to be associated with said support.
• the invention relates to the field of the treatment of supports and will find its application when it is a question of producing supports which have particular properties, in particular within the framework of the protection of this support or of an element receiving such a support, against undesirable effects.
• a first method consists in ensuring the attachment of molecules to a support by making a covalent bond between this support and these molecules. This is, for example, the case when it comes to fixing coloring molecules on a support, in particular cellulosic.
• Such a method has a certain number of drawbacks consisting in the fact that the production of a covalent bond, on the one hand, requires the intervention of specific chemicals as well as a substantial supply of energy and, on the other hand and above all, causes an irreversible chemical modification of the support as well as of the structure and the activity of the molecules which is not admissible.
• Another method consists in ensuring the attachment of molecules to a support by bonding these molecules using a binder.
• Such bonding is in fact carried out by polymerization of this binder at high temperature, which has a certain number of drawbacks consisting, on the one hand, in stiffening the support and, on the other hand, by flooding the molecules within the binder, which makes these molecules completely inactive.
• the present invention seeks to overcome the drawbacks of the devices and methods of the prior art.
• the invention relates to a process consisting in ensuring the presence, at the level of a support, of molecules exhibiting an activity, in particular chemical, bio-chemical or similar, either against organisms or undesirable phenomena. , either in favor of a desired phenomenon, characterized by the fact that:
• a composition is produced containing, on the one hand, active molecules and, on the other hand, a substance constituted by molecules of the polymerizable and / or crosslinkable type capable of forming a network having at least one amorphous zone; - It ensures the presence of this composition at this support; at least part of said active molecules are trapped in at least one amorphous zone defined by the polymerizable and / or crosslinkable molecules contained in the composition present at said support, this while maintaining the activity of these trapped active molecules.
• the invention also relates to a support device receiving molecules having an activity, in particular chemical, biochemical or similar, either against organisms or undesirable phenomena, or in favor of a desired phenomenon, characterized by fact that audit support are associated means arranged to ensure trapping, at the level of this support, of at least part of the active molecules while maintaining the activity of the trapped active molecules.
• the trapping means consist of a substance containing molecules of the polymerizable and / or crosslinkable type forming a network having at least one amorphous zone at the level of which at least a portion of the active molecules are trapped .
• the trapping means are defined at the level of a superposition of several layers, on the one hand, adsorbed on the surface of said support, on the other hand, each consisting of a substance containing polymerizable and / or crosslinkable molecules and, furthermore, each comprising at least one amorphous zone between which and / or inside which said active molecules are trapped.
• the invention also relates to a composition intended to implement the method mentioned above and / or intended to be associated with a support with a view to obtaining the support device described above, this composition being characterized by the fact that it contains, on the one hand, active molecules and, on the other hand, a substance constituted by molecules of the polymerizable and / or crosslinkable type capable of forming a network having at least one amorphous zone.
• the advantages of the present invention consist in that the active molecules are made integral with the support by means of trapping means, on the one hand, ensuring an effective fixing of these molecules on the support and, on the other hand, n '' in no way affecting the activity of these active molecules.
• Another advantage relates to the fact that the implementation of the method for producing a support receiving active molecules is easy.
• Yet another advantage of the invention is that this process makes it possible to envisage, without destruction or inhibition, the fixation of many different types of molecules exhibiting activity in many fields, this on a large quantity of supports of diverse and varied nature.
• An additional advantage relates to the fact that the active molecules can be arranged in the form of superimposed layers which can be removed successively (in particular by mechanical or chemical effect such as, for example, by washing, by friction or other of the support) which, d on the one hand, makes it possible to maintain the activity of the support and, on the other hand, authorizes a successive activation of identical or even different molecules (for example for a different action) trapped at the level of said support.
• Figure 1 is a schematic view corresponding to a step of the method according to the invention consisting in ensuring the presence of a composition containing active molecules and polymerizable and / or crosslinkable molecules at the support, this according to a particular embodiment of this invention.
• Figure 2 is a schematic view corresponding to a support device according to the invention at which the presence has been ensured of a composition containing active molecules and polymerizable and / or crosslinkable molecules.
• FIG. 3 is a diagrammatic view of a support device according to the invention having amorphous zones at the level of which active molecules are trapped.
• the present invention relates to the field of treatment of supports and will find its application when it is a question of producing supports which have particular properties, for example when it is a question of ensuring the protection of this support or of a element receiving such support, this against undesirable effects.
• a support 1 In order to confer such properties on a support 1, it is necessary to ensure the presence, at the level of this support 1, of molecules 2, 2 ′ having an activity, in particular chemical, biochemical or similar. According to a first type of support 1, such an activity can be exercised against organisms (micro-organisms, animals, plants, etc.) or undesirable phenomena (radiation, etc.), or even and according to another type of support 1, exercising in favor of desired phenomena (coloring, etc.).
• the invention therefore relates to a support device 1 to which are associated means 3 arranged to ensure trapping, at the level of this support 1, of at least part 2 of said active molecules 2, 2 ′ present at this level. support 1.
• These trapping means 3 are, moreover and despite their trapping function, designed capable of maintaining the activity of said active molecules 2, as the case may be, against undesirable organisms / phenomena or in favor of the desired phenomena.
• the support device 1 receives, at its surface 4 and / or in its volume 5, a substance 6 containing molecules of the polymerizable and / or crosslinkable type capable of to form a network having at least one amorphous zone 7 as well as at least one crystalline zone 8.
• these active molecules 2 ′ can be trapped, as the case may be, within a crystalline zone 8 or between such a crystalline zone 8 and said support 1 (FIG. 3). Due to their imprisonment, such active molecules 2 ′ are inhibited and lose their activity against undesirable organisms / phenomena or in favor of the desired phenomena. However, as shown in FIG. 3, other active molecules 2 are find at least one amorphous zone 7 constituting said trapping means 3 of these molecules 2 ensuring the joining of the latter 2 of said support 1 while maintaining their activity, as the case may be, against undesirable organisms / phenomena or in favor of the desired phenomena.
• substance 4 contains molecules of polymerizable and / or crosslinkable type which, by incomplete polymerization and / or crosslinking, are capable of constituting at least one amorphous zone 7.
• the amorphous zone 7, at the level of which are trapped said active molecules 2 is constituted by a polymerization and / or incomplete crosslinking of the polymerizable and / or crosslinkable molecules entering into the composition of substance 6 defining said trapping means 3.
• the realization such an amorphous zone 7 can be ensured in different ways such as, for example, by subjecting said substance 6 to radiation (in particular UV or other) for a determined period.
• such an amorphous zone 7, at the level of which said active molecules 2 are trapped is constituted by a dried portion of the substance 6 containing the polymerizable and / or crosslinkable molecules.
• the trapping means 3 are defined at the level of at least one layer, on the one hand, adsorbed on the surface 4 of said support 1 and, on the other hand, constituted by a substance 6 containing polymerizable and / or crosslinkable molecules.
• a layer comprises at least one amorphous zone 7 behind which and / or inside which said active molecules are trapped 2.
• said active molecules 2 can be trapped at the rear of such an amorphous zone 7.
• the polymerizable and / or crosslinkable molecules are capable of forming a network having openings whose cross section is smaller than that of an active molecule 2 so that the latter 2 is trapped through the network, to the rear of the latter, while remaining active with respect to the external environment.
• said active molecules 2 can be trapped inside such an amorphous zone 7.
• the polymerizable and / or crosslinkable molecules are capable of forming a network constituted by channels or the like. inside which said active molecules 2 are trapped while remaining active with respect to the external environment.
• said trapping means 3 are defined at the level of a superposition of several layers, on the one hand, adsorbed on the surface 4 of said support 1, on the other hand, constituted , each by a substance 6 containing polymerizable and / or crosslinkable molecules and, on the other hand, also, each comprising at least one amorphous zone 7 between which and / or inside which said active molecules 2 are trapped.
• Such layers preferably adopt a structure of the aforementioned type (network with openings or channels).
• a preferred embodiment of the invention consists in that the amorphous zones 7 of several superimposed layers are themselves superimposed.
• an amorphous zone 7 has greater brittleness than a crystalline zone 8. Also and through an appropriate treatment, it is possible to remove part of a layer of substance 6 corresponding to an amorphous zone 7 of this layer. Such an embodiment advantageously makes it possible to remove from the support 1 active molecules 2 trapped by an upper layer and having lost their activity in order to bring the active molecules 2 trapped by a lower layer close to the surface having only had little or no activity.
• an appropriate treatment may consist of a mechanical and / or chemical treatment.
• a treatment can consist of friction, abrasion, washing of said support 1, this under particular conditions (in particular of temperature).
• the amorphous zone or zones 7 and / or the active molecules 2 may be liable to undergo a deformation allowing such an active molecule 2 to pass through or s 'extract from a layer of substance 6 to be released into the outside environment.
• the deformation of an active molecule 2 can, for example, be caused by an insect or the like (for example a mosquito) coming into contact with such a molecule 2.
• the deformation of such a molecule 2 and / or an amorphous zone 7 can also result from voluntary contact with an element external to the support 1, in particular contact with the skin (for example for active molecules of the drug type with transcutaneous diffusion) or d 'a contact by friction, buffering or the like, this in the context of a treatment aimed at ensuring, voluntarily, a release of such active molecules 2.
• these 2, 2 ′ may be in an emulsifiable, dispersible form or soluble in a solvent, in particular water.
• such active molecules 2 exhibit activity against insects (crawling, flying or otherwise) and can be of the insecticide, insect repellant or similar type.
• insect repellent molecules such as permethrin, deltamethrine or the like.
• insecticidal and repellant molecules such as, for example, bifenthrin or ethophen prox.
• Another category of active molecules 2 consists of those exhibiting activity against bacteria, microbes (molecule of the isothiazolinone type or the like), mites (molecule of the triclosan type or the like) or the like.
• Yet another category relates to active molecules 2 exhibiting activity against plants, in particular mosses.
• active molecules 2 which have activity in the prophylaxis or curative treatment of a disease.
• active molecules 2 have an activity against the fixing of staining products on the support 1 which receives them.
• Another category concerns that of the active molecules 2 which exhibit activity against radiation, in particular Ultra-violet.
• the latter 1 can be of different types.
• this support 1 can be constituted, at least in part, by a textile material.
• a textile material can be of the knitted, woven, non-woven or other type and consist of natural, artificial or synthetic fibers and / or filaments such as, for example, polyester, viscose, cotton, wool, polyamide. , silk, or a mixture of different fibers and / or filaments.
• a particular embodiment consists in that the support is a clothing element (a shirt, a sweater, pants, a jacket or the like).
• an application of the invention may consist in ensuring the presence, at the level of such a clothing element, of molecules exhibiting an activity against insects (for example mosquitoes), bacteria , microbes, mites (for example ticks), staining products or even radiation.
• Such a clothing element can also receive molecules designed capable of coloring the support 1 or having an activity in the prophylaxis or curative treatment of a disease to which the wearer of this garment may be subject.
• molecules 2 exhibiting activity against insects for example mosquitoes
• bacteria, microbes, mites for example ticks
• staining products or radiation can also be associated with a support 1 defined by a fabric in the form of a curtain (more particularly a mosquito net, curtains, double curtains or the like).
• Molecules 2 exhibiting such activities as well as molecules exhibiting activity, either against plants (in particular mosses or the like), or in favor of coloring, can be combined with a support 1 constituted by a constituent element of '' a building, such as, for example, a wall, a closing device (in particular a door, a window, a shutter or the like), a blind, a roof, a balcony, a terrace, paving stones or, again, a covering reported on such a constituent element.
• a support 1 constituted by a constituent element of '' a building, such as, for example, a wall, a closing device (in particular a door, a window, a shutter or the like), a blind, a roof, a balcony, a terrace, paving stones or, again, a covering reported on such a constituent element.
• any support 1 made of any material (wood, concrete, fabric , metal, leather, ceramic ...), any kind of active molecules 2 or any kind of mixture of active molecules 2 (of similar, identical, different, complementary activity) according to the type or types of activities that one wishes to confer on this support 1.
• any support 1 made of any material (wood, concrete, fabric , metal, leather, ceramic ).
• any kind of active molecules 2 or any kind of mixture of active molecules 2 of similar, identical, different, complementary activity
• these can be of the polymerizable and / or crosslinkable type.
• polymerizable molecule an acrylic derivative, styrene butadiene, polyurethane, vinyl acetate, urethane or the like.
• crosslinkable molecules these may, without limitation, be constituted by resins of the melamine formaldehyde, methylol-urea, dimethyloldihydroxyethylene urea, formalin urea or other type.
• substance 4 can contain any of these molecules, or even a mixture of several of these molecules.
• this substance 4 may also contain at least one catalyst consisting, for example, of an acid type catalyst such as acetic acid, formic acid or the like or a mixture of such acids.
• an acid type catalyst such as acetic acid, formic acid or the like or a mixture of such acids.
• the present invention also relates to a method consisting in ensuring the presence, at the level of a support 1, of molecules 2, 2 ′ exhibiting an activity, in particular chemical, bio-chemical or similar, of the type mentioned above, this either against organisms or undesirable phenomena, or in favor of a desired phenomenon.
• composition 9 is produced containing, on the one hand, active molecules 2, 2 ′ and, on the other hand, a substance 4 consisting of molecules of the polymerizable and / or crosslinkable type capable of forming a network having at minus an amorphous zone 7;
• composition 9, containing the active molecules 2, 2 ′ as well as the polymerizable and / or crosslinkable molecules is usually produced in the presence of a solvent which can be, for example, water .
• the polymerizable and / or crosslinkable molecules may require the presence of a catalyst to polymerize and / or crosslink as it is, for example, the case for molecules which can be polymerized and / or crosslinkable at high temperature.
• composition 9 containing a substance 4 consisting of polymerizable and / or crosslinkable molecules at high temperature, a catalyst is added to this composition 9.
• a catalyst is added to this composition 9.
• the composition 9 is produced containing a substance 4 consisting of polymerizable and / or crosslinkable molecules at high temperature.
• a substance 4 consisting of molecules capable of polymerizing and / or of crosslinking in the absence of catalyst, more particularly, by self-polymerization or self-crosslinking.
• this composition 9 is ensured at the level of said support 1.
• this support 1 can be immersed in a bath 10 containing such a composition 9, such a bath 10 being, for example, produced in a tank, in particular of a washing machine.
• a bath 10 being, for example, produced in a tank, in particular of a washing machine.
• Such an embodiment can be envisaged in the case of a support 1 adopting the form of a fabric or the like.
• this composition 9 is sprayed on said support 1, this by means of a sprayer adopting, for example, the shape of at least one nozzle.
• a sprayer adopting, for example, the shape of at least one nozzle.
• Such an embodiment can, for example, be envisaged in the context of a support 1 adopting the form of a roof, a blind or the like.
• Yet another embodiment consists in applying such a composition 9 to said support 1, this by means of a brush or a roller. This can be so when this support 1 takes the form of a terrace, a wall or the like.
• a thickener as the case may be, of synthetic type (such as for example an acrylate or other) or natural (such as for example a sodium alginate or other).
• the active molecules 2 are trapped in at least one amorphous zone 7 of the substance 6 contained in said composition 9. In fact, such trapping is ensured by carrying out a polymerization and / or an incomplete crosslinking of the polymerizable and / or crosslinkable molecules contained in this composition 9.
• this trapping of the active molecules 2 in an amorphous zone 7 can be carried out by drying said composition 9 at a temperature significantly below the polymerization and / or crosslinking temperature of the polymerizable molecules and / or crosslinkable contained in the composition. In fact, through such drying, polymerization and / or incomplete crosslinking of these molecules is ensured, leaving room for an unstructured network having amorphous zones 7 where active molecules 2 are trapped.
• drying is ensured at a low temperature in comparison with the polymerization and / or crosslinking temperature of the molecules contained in substance 6.
• such drying of the composition 9 takes place at a temperature below 70 ° C, preferably below 50 ° C, this, preferably, in the open air, in an oven or the like.
• the present invention also relates to a chemical composition 9 intended to implement the method described above and / or intended to be associated with a support 1 with a view to obtaining the above-mentioned support device 1.
• a composition 9 then contains, on the one hand, active molecules 2, 2 ′ and, on the other hand, a substance 4 constituted by molecules of polymerizable and / or crosslinkable ype capable of forming a network having at least one amorphous zone 7.

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• Agricultural Chemicals And Associated Chemicals (AREA)
• Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
• Polymerisation Methods In General (AREA)
• Catching Or Destruction (AREA)

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• 2002
  • 2002-09-23 FR FR0211729A patent/FR2844730B1/fr not_active Expired - Fee Related
• 2003
  • 2003-09-23 DE DE60322080T patent/DE60322080D1/de not_active Expired - Lifetime
  • 2003-09-23 EP EP03780273A patent/EP1542809B1/de not_active Expired - Lifetime
  • 2003-09-23 ES ES03780273T patent/ES2310253T3/es not_active Expired - Lifetime
  • 2003-09-23 WO PCT/FR2003/050060 patent/WO2004026492A2/fr active IP Right Grant
  • 2003-09-23 AT AT03780273T patent/ATE400371T1/de not_active IP Right Cessation
  • 2003-09-23 AU AU2003288363A patent/AU2003288363A1/en not_active Abandoned
  • 2003-09-23 PT PT03780273T patent/PT1542809E/pt unknown

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