EP4136175A1 - Procédé et solution pour préparer une surface à activité bactériostatique et bactéricide, surface ainsi préparée et ses utilisations - Google Patents
Procédé et solution pour préparer une surface à activité bactériostatique et bactéricide, surface ainsi préparée et ses utilisationsInfo
- Publication number
- EP4136175A1 EP4136175A1 EP21734391.2A EP21734391A EP4136175A1 EP 4136175 A1 EP4136175 A1 EP 4136175A1 EP 21734391 A EP21734391 A EP 21734391A EP 4136175 A1 EP4136175 A1 EP 4136175A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- aqueous solution
- chain
- radical polymerizable
- optionally substituted
- ink
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
- A01N25/10—Macromolecular compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/02—Amines; Quaternary ammonium compounds
- A01N33/12—Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
- C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/065—Polyamides; Polyesteramides; Polyimides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/02—Polyamines
- C08G73/0206—Polyalkylene(poly)amines
- C08G73/0213—Preparatory process
- C08G73/0226—Quaternisation of polyalkylene(poly)amines
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
- C09D179/02—Polyamines
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
Definitions
- the present invention belongs to the technical field of antibacterial surfaces and, more particularly, of surfaces onto which are grafted, covalently, polymers with bacteriostatic or bactericidal activity of the polyionene type.
- the present invention relates to a method and a solution for imparting bacteriostatic or bactericidal properties to the surface of an object consisting in depositing, on this surface, polymers with bacteriostatic or bactericidal activity of the polyionene type, in particular in the form of. an ink, the latter then being crosslinked via irradiation and in particular photonic annealing so as to create covalent bonds between the surface and the polymers.
- the present invention also relates to the surface exhibiting bacteriostatic or bactericidal properties thus prepared and its uses.
- Inorganic nanoparticles and in particular silver nanoparticles [2] are often chosen to enhance the antibacterial effect of polymer films in terms of activity and stability.
- the main problem is the release of these nanoparticles, in particular toxic silver nanoparticles, or corresponding ions into the surrounding environment.
- the use of silver nanoparticles has been limited due to the risk of toxicity.
- Other examples of inorganic composites include the use of less toxic nanoparticles, such as ZnO [3], copper [4] or TiO 2 [5].
- the placing on the market of plastic films containing inorganic nanoparticles [6] for applications in the food sector for example, has encountered a great deal of reluctance on the part of producers.
- the other route also explored, particularly in the field of packaging, consists of the adsorption or grafting of small molecules such as triclosan, nisin [7] or essential oils such as thymol [8] or carvacrol [9 ].
- the problem lies in the release of these molecules from the packaging, due to their simple physical adsorption on the film and / or the low thermal stability of the molecules at the high temperatures of the packaging process or other industrial processes such as extrusion of plastic films.
- the packaging thus treated loses efficiency over time.
- the release of molecules is a serious problem concerning potentially toxic molecules such as triclosan known as an endocrine disruptor, but also in the case of “safer” molecules such as essential oils. Indeed, their diffusion in food or the environment (water) is likely to cause a change in taste.
- An alternative route is to immobilize the antimicrobial agent on montmorillonite-type clay [10], in order to control its diffusion and increase thermal stability.
- Cationic antimicrobial peptides or AMP for “AntiMicrobial Peptides” have been shown to be particularly effective due to their particular antimicrobial activity based on interactions, electrostatic and hydrophobic, nonspecific [11].
- antimicrobial polymers are particularly interesting because they generally also have long-term activity with in addition a high chemical stability (reduction of residual toxicity and microbial resistance).
- polycations based on quaternary ammonium salts and with a modulable amphiphilic character have been described as capable of effectively disrupting the outer and cytoplasmic membrane of cells leading to lysis and therefore cell death. It has been demonstrated that one of the key parameters for an effective antibacterial effect of the polymer is its amphiphilic character, namely the hydrophobic / charge ratio.
- polyionenes or ionenes containing quaternary ammoniums, in the main chain of the polymer or backbone, separated by hydrophobic fragments are particularly interesting candidates [12-16]. Indeed, Strassburg et al demonstrated that polyionenes exhibit particularly effective antimicrobial properties, mainly due to the presence of alkyl groups of variable length [13]. These polymers were also shown to exhibit low cytotoxicity [14] and the Argawal group also introduced ethoxyethyl and aliphatic segments within the ionene structure to assess the influence of these segments at the level of. biocidal activity and enhance the biocompatibility of these polymers [15].
- US patent 4980067 proposes coating or grafting microporous membranes with polyionenes in order to eliminate contaminants of the microorganism type possibly present in biological liquids [17]. More particularly, this patent describes the incorporation of polyionenes in microporous membranes made of nylon and potentially positively charged. This incorporation is made via a process using a binding agent of the epoxy type present either in the form of an additive or of reactive functions in the polymer. This latter strategy is limiting as regards the choice of the polyionene to be incorporated. Furthermore, there is no characterization of the grafting reactions implemented allowing the assertion that the polyionene is not simply adsorbed or even released in solution. Indeed, the only tests which are carried out in the experimental part of [17] are tests on the inhibition of the growth of bacteria and the method used, namely the measurement of the optical density, is particularly suited to solutions and not to surfaces. .
- the inventors have set themselves the goal of proposing a process, which is simple, robust and can be industrialized, making it possible to obtain a new active coating capable of controlling, limiting or inhibiting the bacterial growth of the undesirable flora (deterioration and pathogen) and this, for applications in the food industry as well as in the sanitary, medical, military or environmental fields.
- the inventors have also set themselves the goal of proposing a process, which is simple, robust and can be industrialized, making it possible to obtain a new active coating, covalently bonded, to the surface on which it has been deposited and not exhibiting the effects. drawbacks of the coatings of the prior art, in particular in terms of release of compounds.
- the present invention makes it possible to achieve the object set by the inventors and therefore relates to a process for preparing an adhesive coating with bacteriostatic or bactericidal properties aimed at obtaining a bacteria trap.
- the coating prepared by the process according to the invention is based on the use of a particular solution making it possible to obtain a polymer film of the solid crosslinked, bacteriostatic or bactericidal type at which most of the unwanted bacteria are trapped to limit their growth. in order to avoid their multiplication on the product or in the environment.
- the method according to the invention involves a film grafted, covalently, to the initial substrate.
- the inventors have developed a photo-crosslinkable solution comprising polyionenes which, once subjected to UV irradiation and in particular to photonic annealing, produces a three-dimensional polymer network within which are incorporated, covalently, polyionenes.
- ionene-type polymers not only offers the advantage of having a bacteriostatic or bactericidal property which is both pro-adhesive (the bacteria are trapped) and adjustable in terms of bactericidal power. Indeed, depending on the monomers (dihalogens and diamines) used to prepare these polymers, it is possible to inhibit, in whole or in part, the strains present. In fact, in the process according to the present invention, there is no limitation as regards the polymers of the type. ionene which can be used, the radical polymerizable function (s) which they must exhibit can be provided via post-functionalization.
- the particular solution implemented in the invention can be in the form of an ink, which makes it possible to print the pro-adhesive and bacteriostatic / bactericidal coating, on large surfaces and in a reproducible, rapid and industrializable.
- the coating according to the invention which is both pro-adhesive and bacteriostatic / bactericidal, makes it possible to trap the undesirable flora (deterioration and pathogen) irreversibly and has a particularly advantageous impact both economically and environmentally. Indeed, it is particularly useful for a better conservation of fresh products, a reduction in the expiration date (DLC) and a reduction of food waste in the field of packaging.
- DLC expiration date
- the present invention can also be applied very usefully in the health, medical, medical-hospital, military or environmental field in the broad sense, in the perspective of manufacturing clothing or protective coatings and decontamination or purification objects such as rod, probe, paper, textile and membrane and / or "container" surfaces such as tray, case and packaging film which can advantageously serve as "bacteria traps ".
- the low cytotoxicity of polyionenes and their ability to limit bacterial resistance are additional advantages for this type of application.
- the present invention relates to a method for imparting bacteriostatic or bactericidal properties to the surface of an object consisting of:
- the present invention applies to any object that can be used not only in the packaging and conservation of products but also as a device for protection, decontamination and / or purification in the medico-hospital or hospital field. environment.
- This object can therefore be chosen from the group consisting of a film such as, for example, a packaging film, a box, a tray, a case, a cover, a sachet, dialysis equipment, a rod, a probe. , paper, textile, membrane and filter.
- the surface of the object can be an inorganic or an organic surface.
- the material of this surface can be chosen from the group consisting of glass; a polymeric material or resin such as, by way of example, polyethylene (PE), polycarbonate (PC), polystyrene (PS), polypropylene (PP), poly (ethylene terephthalate) (PET), polymethacrylate methyl (PMMA), poly (vinyl chloride) (PVC), epoxy resin, polyurethane, etc. ; a metallic material such as stainless steel, tin or aluminum; silicon; silica; clays; ceramics; natural fibers and synthetic fibers.
- PE polyethylene
- PC polycarbonate
- PS polystyrene
- PP polypropylene
- PET poly (ethylene terephthalate)
- PMMA polymethacrylate methyl
- PVC poly (vinyl chloride)
- epoxy resin polyurethane, etc.
- a metallic material such as stainless steel, tin or aluminum
- silicon silic
- step a) thereof Prior to the implementation of the method, i.e. prior to step a) thereof, it is possible to subject the surface of the object to an oxidizing treatment and / or to form an organic sub-layer on said surface.
- the final oxidizing treatment aims to oxidize the surface of the object used by fixing and / or introducing, on the latter, groups, identical or different, rich in oxygen, ie groups, identical or different, comprising at least one oxygen atom.
- Such an oxidizing treatment is based on two main types of surface modifications based on:
- An organic sub-layer could also be made necessary to facilitate the grafting of the polymers during step b), in particular on inorganic substrates.
- organic sub-layers that can be envisaged, there may be mentioned a sub-layer of polydopamine or of a polydopamine derivative, in particular on an oxide-based surface, as described in international application WO 2008/049108 [ 18] or grafting, via diazonium salts, on metal surfaces, as described in international application WO 2008/078052 [19] and in the prior art cited in this application.
- the aqueous solution used in step a) of the process according to the invention comprises at least one polymer of ionene type functionalized by at least one polymerizable function by the radical route.
- polymer of ionene type is meant, in the context of the present invention, a cationic polymer in which all or part of the positive charges are provided by quaternary ammoniums present in the main chain of the polymer, said positive charges being separated by hydrophobic segments.
- polymer of ionene type a cationic polymer in which all or part of the positive charges are provided by quaternary ammoniums present in the main chain of the polymer, said positive charges being separated by hydrophobic segments.
- Any ionene-type polymer capable of being obtained by reaction of a diamine and of a dihalogen can be used in the context of the present invention, provided that the latter has at least one function which can be polymerized by the radical route.
- radical polymerizable function is meant, in the context of the present invention, any organic chemical function capable of being involved in a radical polymerization reaction, ie capable of providing, after activation, at least one radical species. active capable of reacting with another radical polymerizable function so as to form a single covalent bond, in particular of the carbon-carbon or carbon-oxygen type.
- a radical polymerizable function exhibits at least one bond of ethylenic type, i.e. a function of ethylenic type or a function with ethylenic unsaturation.
- a radical polymerizable function is chosen from the group consisting of acrylates, methacrylates, styrenics, vinyls, acrylamides and methacrylamides.
- the diamine used to prepare the polymer of ionene type which can be used in the process according to the invention is of formula (I):
- - A is a chain chosen from the group consisting of an optionally substituted alkylene chain, an optionally substituted alkenylene or alkynylene chain, an optionally substituted arylene chain, an optionally substituted alkylarylene chain and an optionally substituted arylalkylene chain.
- alkyl group means an alkyl group, linear, branched or cyclic, comprising from 1 to 20 carbon atoms, in particular from 1 to 15 carbon atoms and, in particular, from 1 to 10 carbon atoms, said group alkyl possibly comprising at least one heteroatom and / or at least one carbon-carbon double or triple bond.
- heteroatom is meant, in the context of the present invention, an atom chosen from the group consisting of nitrogen, oxygen, phosphorus, sulfur, silicon, fluorine, chlorine and bromine.
- substituted alkyl group is meant, in the context of the present invention, an alkyl group as defined above substituted by a group or more groups, identical or different, chosen from the group consisting of a halogen; an amine; a diamine; a carboxyl; a carboxylate; an aldehyde; an ester; an ether; a ketone; a hydroxyl; an optionally substituted alkyl; an amide; a sulphonyl; a sulphoxide; a sulphonic acid; a sulphonate; a nitrile; a nitro; an acyl; an epoxy; a phosphonate; an isocyanate; a thiol; a glycidoxy; an acryloxy and a radical polymerizable function.
- halogen is meant, in the context of the present invention, an atom chosen from the group consisting of an iodine, a fluorine, a chlorine and a bromine.
- alkyl groups which can be used for Rl to R4
- aryl group is meant, within the context of the present invention, any group comprising an aromatic ring or several aromatic rings, identical or different, linked or connected by a single bond or by a hydrocarbon chain, an aromatic ring having 3 to 20 carbon atoms, in particular from 3 to 14 carbon atoms and, in particular, from 3 to 8 carbon atoms and possibly comprising a heteroatom.
- aryl group which can be used in the invention, mention may be made of a phenyl group.
- substituted aryl group is meant, in the context of the present invention, an aryl group as defined above substituted by a group or more groups, identical or different, chosen from the group consisting of a halogen; an amine; a diamine; a carboxyl; a carboxylate; an aldehyde; an ester; an ether; a ketone; a hydroxyl; an optionally substituted alkyl; an amide; a sulphonyl; a sulphoxide; a sulphonic acid; a sulphonate; a nitrile; a nitro; an acyl; an epoxy; a phosphonate; an isocyanate; a thiol; a glycidoxy; an acryloxy and a radical polymerizable function.
- aryl groups which can be used for RI to R4
- alkylene chain is meant, in the context of the present invention, an alkylene chain, linear, branched or cyclic, comprising from 1 to 30 carbon atoms, in particular from 2 to 20 carbon atoms and, in particular, from 3 to 15 carbon atoms, said alkylene chain possibly comprising at least one heteroatom.
- alkenylene or alkynylene chain is meant, in the context of the present invention, an alkenylene or alkynylene chain, linear, branched or cyclic, comprising from 2 to 30 carbon atoms, in particular from 2 to 20 carbon atoms and, in particular, from 2 to 15 carbon atoms, said alkenylene or alkynylene chain possibly comprising at least one heteroatom.
- arylene chain is understood to mean any chain comprising an aromatic ring or several aromatic rings, identical or different, linked or connected by a single bond or by a hydrocarbon chain, an aromatic ring having many characteristics. 3 to 20 carbon atoms, in particular from 3 to 14 carbon atoms and, in particular, from 3 to 8 carbon atoms and possibly comprising a heteroatom.
- alkylarylene chain is meant, in the context of the present invention, any chain derived from an arylene chain as defined above, one hydrogen atom of which is replaced by an alkyl group as defined above.
- arylalkylene chain is meant, in the context of the present invention, any chain derived from an alkylene chain as defined above, one hydrogen atom of which is replaced by an aryl group as defined above.
- substituted alkylene chain By “substituted alkylene chain”, “alkenylene or substituted alkynylene chain”, “substituted arylene chain”, “substituted alkylarylene chain” and “substituted arylalkylene chain” is meant, in the context of the present invention, an alkylene chain, an alkenylene chain or alkynylene, an arylene chain, an alkylarylene chain and an arylalkylene chain as defined above substituted with a group or more groups, identical or different, chosen from the group consisting of a carboxyl; a carboxylate; an aldehyde; an ester; an ether; a ketone; a hydroxyl; an optionally substituted alkyl; an amide; a sulphonyl; a sulphoxide; a sulphonic acid; a sulphonate; a nitrile; a nitro; an acyl; an epoxy;
- alkylene chains that can be used in the invention, there may be mentioned a methylene, ethylene, propylene, butylene, pentylene, hexylene, heptylene, octylene, decylene, undecylene, dodecylene chain and a chain of formula - (CH 2 ) n-0- (CH 2 ) m- or - (CH 2 ) n -S- (CH2) m- with n and m, identical or different, representing 0 or an integer between 1 and 20 and with n + m greater than or equal to 1, said chains which may optionally be substituted with at least one radical polymerizable function.
- alkylene chains that can be used in the invention, mention may be made of a propylene, butylene, pentylene, hexylene, heptylene, octylene, decylene, undecylene, dodecylene chain and a chain of formula - (CH 2 ) n-. 0- (CH 2 ) m- or - (CH 2 ) n -S- (CH2) m- with n and m, identical or different, representing 0 or an integer between 1 and 20 and with n + m greater or equal to 1, said chains possibly being substituted by at least one radical polymerizable function.
- arylene chains which can be used in the invention, there may be mentioned a phenylene or biphenylene chain, said chain possibly being substituted with at least one radical polymerizable function.
- radicals R1, R2, R3 and R4 are identical. In a more particular embodiment, the radicals R1, R2, R3 and R4 are identical and represent a methyl or an ethyl, optionally substituted by at least one polymerizable function by the radical route.
- the dihalogen used to prepare the polymer of ionene type which can be used in the process according to the invention is of formula (II):
- - B is a chain chosen from the group consisting of an optionally substituted alkylene chain, an optionally substituted alkenylene or alkynylene chain, an optionally substituted arylene chain, an optionally substituted alkylarylene chain and an optionally substituted arylalkylene chain.
- the radicals R5 and R6 are identical. In a more particular embodiment, the radicals R5 and R6 are identical and represent a bromine atom, a chlorine atom or an iodine atom. In a still more particular embodiment, the radicals R5 and R6 are identical and represent a bromine atom.
- the ionene-type polymer functionalized by at least one radical polymerizable function which can be used in the context of the present invention comprises, in its main chain, a sequence of repeating units, which are identical or different, each unit being chosen from the unit of formula (III) and the unit of formula (IV):
- At least one radical polymerizable function as defined above is covalently linked to an atom of the main chain or backbone, to a side chain atom or to a pendant group atom of the ionene-type polymer.
- the ionene-type polymer used in the invention exhibits, as soon as it is prepared from a diamine and a dihalogen as defined above, at least one function which can be polymerized by the radical route.
- the radical polymerizable function can substitute at least one group from the radicals R1, R2, R3 and R4 and the chains A and B as defined above.
- the polymer of ionene type functionalized by at least one polymerizable function is prepared via a polyaddition also known under the expression of “Menschutkin reaction” involving at least one diamine of formula (I) as defined above. and at least one dihalide of formula (II) as defined above.
- the RI, R2, R3 and R4 functions carried by the diamine (s) and the R5 and R6 functions carried by the dihalide (s) are the reactive functions during this polyaddition reaction.
- the diamine (s) and the dihalide (s) are in solution in a polar, protic or aprotic solvent.
- This solvent is in particular / V, / V-dimethylformamide (DMF) or a hydroxylated solvent, in particular methanol, ethanol or a mixture thereof, and more particularly methanol.
- this duration may be between 6 h and 30 h, in particular between 12 h and 24 h and, in particular, be of the order of 17 h (i.e. 17 h ⁇ 2 h).
- This polyaddition is typically carried out with stirring and, advantageously, under an inert atmosphere.
- the ionene-type polymer obtained following the polyaddition step does not carry a radical polymerizable function as defined above.
- This second variant also applies in the case where it is desired to increase the number of radical polymerizable functions carried by the polymer of ionene type already functionalized by at least one radical polymerizable function.
- the radical polymerizable functions are added, after the polyaddition, by replacing one or more functions, identical or different, substituting the ionene-type polymer with one or more radical polymerizable function (s) by means of one or more simple chemical reactions.
- the polyaddition step as defined above is followed by an operation during which one or more functions, identical or different, substituting the ionene-type polymer is / are replaced by one or more functions (S) polymerizable (s) by the radical route as (s) previously defined (s).
- This operation therefore corresponds to a post-functionalization of the ionene-type polymer by at least one function radical polymerizable.
- a simple chemical reaction which can be used for this substitution / post-functionalization, there may be mentioned a radical substitution or a nucleophilic addition.
- Certain embodiments of this second variant can be implemented under an inert atmosphere.
- the experimental part below provides an example of such a post-functionalization in two steps, the first consisting in increasing the halogenated chain ends on the ionene-type polymer then the second in replacing at least one of these halogens with a function. radical polymerizable.
- the ionene-type polymer thus exhibits one or more function (s) polymerizable by the radical route at the end of its main chain.
- the aqueous solution used in step a) of the process according to the invention can comprise one or more polymer (s) of different ionene type.
- this or these polymer (s) of ionene type have a molar mass of between 1000 g. mol 1 and 20,000 g. mol 1 , in particular between 1500 g. mol 1 and 10,000 g. mol 1 , in particular, between 2000 g. mol 1 and 5000 g. mol 1 and, more particularly, of the order of 3000 g. mol 1 ie 3000 ⁇ 500 g. mol 1 .
- the ionene-type polymer (s) is / are present, in the aqueous solution of step a), in a total amount of between 1% and 10%, in particular between 2% and 7% and in particular of the order of 4% (ie 4% ⁇ 0.5%) by mass relative to the total mass of the aqueous solution of step a).
- the aqueous solution used in step a) of the process according to the invention comprises at least one organic compound with two radical polymerizable functions and at least one organic compound with three radical polymerizable functions.
- the organic compound with two radical polymerizable functions and the organic compound with three radical polymerizable functions constitute the two essential elements for forming the three-dimensional polymer network during step b) of process ie during crosslinking under photonic annealing. Without these two elements, ink crosslinking does not occur.
- the sole presence of the functionalized ionene-type polymer by at least one radical polymerizable function and of the organic compound with three radical polymerizable functions is not sufficient to cause crosslinking under photonic annealing.
- Any organic compound with two radical polymerizable functions can be used in the context of the present invention.
- these compounds comprise a hydrocarbon group and two functions with ethylenic unsaturation.
- Such compounds are well known and commercially available.
- an organic compound with two radical polymerizable functions useful in the context of the present invention is chosen from the group consisting of 1,3-butylene glycol diacrylate, 1,3-butylene glycol dimethacrylate, 2,2- dimethylolpropane diacrylate, 2,2-dimethylolpropane dimethacrylate, 2,2-di (p-hydroxyphenyl) -propane diacrylate, 2,2-di- (p-hydroxyphenyl) - propane dimethacrylate, polyoxyethyl-2,2-di- (p-hydroxyphenyl) propane diacrylate, polyoxyethyl-2,2-di- (p-hydroxyphenyl) propane dimethacrylate, 1,3-propanediol diacrylate, an ethoxylated 2-methyl-l, 3-propanediol diacrylate, a 2-methyl -l, 3-propanediol dimethacrylate ethoxylate, 1,3-propanediol
- the aqueous solution used in step a) of the process according to the invention may comprise one or more organic compound (s) with two different radical polymerizable functions.
- the aqueous solution of step a) comprises, as organic compound with two radical polymerizable functions, ethylene glycol dimethacrylate, optionally mixed with a poly (ethylene glycol) diacrylate such as a poly (ethylene glycol) diacrylate, the molar mass of which is yoog.mor 1 .
- the organic compound (s) with two radical polymerizable functions is / are present in the aqueous solution of step a), in a total amount of between 4% and 20% and in particular between 6% and 18% by mass relative to the total mass of the aqueous solution of step a).
- the aqueous solution of step a) comprises only one organic compound with two radical polymerizable functions, the latter is advantageously present in an amount of between 8% and 12% and in particular of the order of 10% (ie 10% ⁇ 1%) by mass relative to the total mass of the aqueous solution of step a).
- the aqueous solution of step a) comprises at least two organic compounds with two radical polymerizable functions, which are different, the latter are advantageously present in a total amount of between 12% and 18% and in particular of the order of 16% (ie 16% ⁇ 1%) by mass relative to the total mass of the aqueous solution of step a).
- Any organic compound with three radical polymerizable functions can be used in the context of the present invention.
- these compounds comprise a hydrocarbon group and three ethylenically unsaturated functions.
- Such compounds are well known and commercially available.
- an organic compound with three radical polymerizable functions useful in the context of the present invention is chosen from the group consisting of pentaerythritol triacrylate, pentaerythritol trimethacrylate, 1,2,4-butanetriol triacrylate, 1,2, 4-butanetriol triacrylate trimethacrylate, glycerol triacrylate, glycerol trimethacrylate, glycerol propoxylate triacrylate, glycerol propoxylate trimethacrylate, trimethylolethane triacrylate, trimethylolethane trimethacrylate, trimethylolpropane triacrylate, trimolethylpropane triacrylane triacrylate, trimolethylpropane trimethyloxylane trimethyloxylate, trimolethylpropane trimoxylane trimetoxylane triacrylane a trimethylolpropane propoxylate triacrylate, a trimethylolpropane propoxylate trimethacrylate,
- the aqueous solution used in step a) of the process according to the invention may comprise one or more organic compound (s) with three different radical polymerizable functions.
- the aqueous solution of step a) comprises, as organic compound with three radical polymerizable functions, trimethylolpropane triacrylate or a trimethylolpropane ethoxylate triacrylate such as a trimethylolpropane ethoxylate triacrylate, the molar mass of which is 428 g. mol 1 , a trimethylolpropane ethoxylate triacrylate with a molar mass of 692 g.mol ⁇ 1 or a trimethylolpropane ethoxylate triacrylate with a molar mass of 912 g. mol 1 .
- the aqueous solution of step a) comprises, as organic compound with three functions which can be polymerized by radical route, a trimethylolpropane ethoxylate triacrylate, the molar mass of which is 428 g. mol 1 .
- the organic compound (s) with three radical polymerizable functions is / are present in the aqueous solution of step a), in a total amount of between 1% and 15% and in particular between 2% and 13% by mass relative to the total mass of the aqueous solution of step a).
- the aqueous solution used during step a) of the process comprises at least one photoinitiator.
- photoinitiator is understood to mean a compound capable, under the action of light and in particular of UV light, of initiating radical polymerization. Any photoinitiator and in particular any free radical photoinitiator can be used in the context of the present invention.
- the photoinitiator used in the context of the present invention is a free radical photoinitiator and, in particular, a type I free radical photoinitiator.
- the maximum absorption wavelength of the photoinitiator used in the present invention is between 280 nm and 400 nm, in particular between 350 nm and 400 nm.
- a photoinitiator useful in the context of the present invention is selected from the group consisting of phosphine oxides such as diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide, diphenylphosphine oxide, triphenylphosphine oxide and acylphosphine oxide; acetophenone and its derivatives such as 1-hydroxy-cyclohexyl acetophenone, 2-hydroxy-2,2-dimethyl acetophenone, 2,2-dimethoxy-2-phenyl acetophenone, 2, 2-diethoxy acetophenone, 2 , 2,2-trichloro-butyl acetophenone and 2 hydroxy-4 '- (2-hydroxyethoxy) 2 methylpropiophenone; benzoin ethers such as benzoin methyl ether, benzoin ethyl ether, benzoin butyl ether and benzoin isopropyl ether; benzophenone and its derivatives such as
- the aqueous solution of step a) comprises, as photoinitiator, 2 hydroxy-4 '- (2-hydroxyethoxy) 2 methylpropiophenone.
- the photoinitiator is present, in the aqueous solution of step a), in an amount of between 1% and 5%, in particular between 2% and 3% and, in particular, of the order of 2, 5% (ie 2.5% ⁇ 0.3%) by mass relative to the total mass of the aqueous solution of step a).
- the solution used during step a) of the process according to the invention has, as solvent, a water-based solvent thus justifying the name of aqueous solution.
- water is meant, in the context of the present invention, tap water, deionized water, distilled water or even ultra-pure water (18.2 MW).
- the solvent of the aqueous solution used during step a) comprises only water, ie this solvent consists of water. Alternatively, it can include at least one other solvent in addition to water.
- This other solvent can be a polar, protic or aprotic solvent.
- this additional solvent can be a hydroxylated solvent such as methanol or ethanol.
- the solvent of the aqueous solution used during step a) is a mixture of water and ethanol and in particular a mixture of deionized water and ethanol. In such a mixture, the water mass ratio and in particular deionized water / ethanol is between 0.4 and 0.8, advantageously between 0.5 and 0.65 and, in particular, of the order of 0.57 (ie 0.57 ⁇ 0.02).
- step a) of the process according to the invention it is possible to prepare, extemporaneously, the aqueous solution by mixing together the elements constituting it.
- the elements constituting the aqueous solution Those skilled in the art will know without any inventive effort the order in which these elements must be mixed and the best way to make this mixture, depending on the nature and the particularities of each of the elements constituting the aqueous solution.
- aqueous solution it is possible to prepare the aqueous solution beforehand and to store it until it is used during step a).
- This storage typically carried out in the dark and at a temperature below 10 ° C and in particular of the order of 4 ° C (4 ° C ⁇ 3 ° C) may be longer than a week, in particular greater than one. months and, in particular, more than two months.
- any liquid deposition technique can be used to bring the aqueous solution into contact with the surface of the object and therefore to coat or impregnate the latter with the aqueous solution such as previously defined.
- the aqueous solution is deposited on the surface of the object via a technique chosen from a deposition by immersion or dipping, also known under the English name “dip coating”; deposition by centrifugation or spin coating, also known under the English name “spin coating”; a deposit by spraying or manual spraying known under the English name “spray coating ”; a deposit by contact using a stamp inked by the aqueous solution and known by the English name “contact printing”, a deposit of the "microdrop” type, also known by the English name "drop coating” and by inkjet printing.
- the aqueous solution is deposited on the surface of the object by inkjet printing, also known under the English name “inkjet printing”.
- inkjet printing also known under the English name “inkjet printing”.
- the aqueous solution used can be defined as an ink.
- Step a) of the process according to the invention is carried out at a temperature of between 5 ° C to 40 ° C, in particular between 10 ° C and 30 ° C and, in particular, at room temperature, ie 23 ° C ⁇ 5 ° C.
- the chemical reaction implemented during step (b) is a radical polymerization.
- the irradiation of the aqueous solution causes the generation of an initiator radical from the photoinitiator present in this solution.
- This radical reacts with an entity present in the aqueous solution and carrying at least one radical polymerizable function, thus forming the first link of the growing polymer chain.
- This entity can be a compound with two radical polymerizable functions, a compound with three radical polymerizable functions or a polymer of ionene type, functionalized by at least one radical polymerizable function.
- the macromolecular chain is formed by successive additions of such entities to the growing “macro-radical”.
- the irradiation during step b) of the method according to the invention is irradiation by ultraviolet (UV) radiation.
- an irradiation source polychromatic or not, such as a light-emitting diode, a xenon lamp, a mercury vapor lamp, a laser, a laser diode or an electron beam, also known under the name English "electron beam" is used during step b), said source having the particular feature of emitting in a part of the UV spectrum between 100 nm and 400 nm and in particular between 200 nm and 400 nm.
- the duration of irradiation of step b) is between 1 second and 24 hours, in particular between 1 s and 12 h, in particular between 1 s and 1 h. Furthermore, this irradiation can be continuous or pulsed.
- the irradiation during step b) of the method according to the invention consists in subjecting the surface coated with aqueous solution obtained following step a) to a succession of light pulses of UV radiation. also called UV flash.
- a succession of light pulses of UV radiation also called UV flash.
- Such a treatment is known by the expression “photonic annealing” or “flash annealing”.
- the photonic annealing is implemented by a plurality of pulses with a duration of between 50 ms and 300 ms, in particular between 100 ms and 200 ms and, in particular, of the order of 150 ms (ie 150 ms ⁇ 20 ms), a pause duration between the pulses between 100 ms and 600 ms, in particular between 200 ms and 400 ms and, in particular, of the order of 300 ms (ie 300 ms ⁇ 50 ms), a voltage between 500 V and 3000 V, in particular between 1000 V and 2500 V and, in particular, of the order of 2000 V (ie 2000 V ⁇ 200 V), and a number of pulses less than or equal to 50, in particular less or equal to 30 and, in particular, of the order of 20 (ie 20 ⁇ 5).
- a duration of between 50 ms and 300 ms in particular between 100 ms and 200 ms and, in particular, of the order of 150 ms (i
- any source of irradiation which can be used for carrying out photonic annealing can be used during step b) of the process according to the invention.
- this irradiation source is a xenon lamp.
- the present invention relates to the aqueous solution used during step a) of the process according to the invention, comprising:
- the aqueous solution according to the present invention comprises:
- aqueous solution according to the present invention comprises or consists of:
- a polymer of ionene type functionalized by at least one radical polymerizable function comprising, in its main chain, a sequence of repeating units of formula (III):
- the present invention also relates to an object having a surface to which bacteriostatic or bactericidal properties have been conferred in accordance with the method as defined above. All that has been previously described for the object and its surface also applies to this aspect of the invention.
- the present invention relates to the use of such an object, in the sanitary field, for preparing protective clothing or coverings.
- the object is in particular a textile.
- the present invention relates to the use of such an object for packaging and / or preserving food products such as fresh food products.
- the coatings can also make it possible to preserve a flora of technological interest and eliminate an undesirable flora such as an alteration or pathogenic flora.
- the invention also relates to the use of such an object for purifying and / or decontaminating a solution, an object or a surface, in particular in the environmental or medico-hospital field.
- Figure 1 shows the FTIR spectrum of an ink according to the present invention (6-1B ink) printed on a PE film and then subjected to photonic annealing, after ultrasonic cleaning.
- Figure 2 shows the FTIR spectrum of native PVC and PVC with 6-1B ink according to the present invention.
- Figure 3 shows the overall spectra of native PVC and PVC surfaces with 6-1B ink (Figure 3A) and the high resolution spectrum of N ls of PVC with 6-1B ink ( Figure 3B).
- Figure 4 shows the FTIR spectrum of native PET and PET with 6-1B ink according to the present invention.
- Figure 5 shows the overall spectra of the surfaces of native PET and PET with G ink 6-1B (Figure 5A) and the high resolution spectra of N 1s on these same surfaces ( Figure 5B).
- Figure 6 shows the overall spectra of the surfaces of PE with the 6-1B ink according to the present invention and the 7-1B ink without PI with at least one radical polymerizable function and therefore not forming part of the invention. (Figure 6A) and the high resolution spectrum of N ls on PE with ink 6-1B ( Figure 6B).
- Figure 8 shows the count of the adhesion supernatants of 5. aureus on a native PE film and on a PE film modified with 6-1B ink according to the method according to the invention.
- the control corresponds to the same culture medium but without modified PE film or not.
- the negative control corresponds to PBS alone and the positive control to PBS with a latex glove extract.
- the reagents listed in Table 1 below were ordered from Sigma-Aldrich.
- the solvents were ordered from CARLO ERBA Reagents. After receipt, all reagents were used as is, without further purification.
- the reaction mixture homogeneous and clear, is heated at 65 ° C. for 17 h with stirring.
- the reaction is stopped by placing the flask in an ice bath.
- the mixture obtained is precipitated by adding it dropwise to 300 ml of acetone.
- the precipitate obtained is filtered off on a Büchner funnel and dried.
- the polyionene thus obtained is PI 6-6 of formula:
- PI 6-6 (8.0214 g, 0.0028 mol) is introduced into a 250 mL three-necked flask topped with a condenser, then, once the assembly is closed, the solid is placed under an inert atmosphere. 100 ml of methanol are added with a glass syringe and the solid is expected to dissolve completely. 1,6-dibromohexane (9 mL, 0.059 mol) is introduced using a syringe, then 18 mL of methanol.
- the reaction mixture is heated at 65 ° C. for 24 hours with stirring.
- the reaction is stopped by placing the flask in an ice bath.
- the mixture is then poured dropwise into from 300 mL to 1300 mL of acetone.
- the precipitate obtained is then filtered through a Büchner funnel and then dried.
- the PI 6-6 Br (6.00 g, 0.0021 mol) is introduced, then, once the assembly is closed, the solid is placed under an inert atmosphere. 90 mL of methanol is added with a glass syringe and the complete dissolution of the solid. 2- (Dimethylamino) ethyl methacrylate (36 mL, 0.2137 mol) is introduced using a syringe, then 16 mL of methanol.
- the reaction mixture is heated at 65 ° C. for 48 hours with stirring.
- the reaction is stopped by placing the flask in an ice bath.
- the mixture is then poured dropwise into from 300 mL to 1400 mL of acetone.
- the precipitate obtained is filtered off on a Büchner funnel and then dried.
- the functionalized polyionene thus obtained is the functionalized PI 6-6 of formula:
- the functionalized PI 6-6 used in the inks according to the invention has a molar mass of around 3000 g. mol 1 .
- the functionalized PI 6-6 is soluble only in water or methanol, and the other components of the inks in ethanol. Consequently, the solvent of the inks was chosen so as to be able to dissolve all the compounds, to evaporate rapidly during crosslinking and to give the ink an ideal viscosity for deposition during jet printing. 'ink.
- This solvent is a mixture of ethanol and deionized water.
- Each of the inks is prepared by precisely and separately weighing the liquid and solid compounds. Then, the mixture of liquid compounds is left to stir for at least 1 hour. This mixture is added to that of the solids and the formulation is allowed to stir at least overnight.
- the ink is finally filtered through a syringe filter 13 mm in diameter in
- Table 2 Ink formulation 6-1B
- Table 3 Ink formulation 4-5
- Table 4 Ink formulation 6-1A
- trimethylolpropane ethoxylate triacrylate as a compound with three poly (ethylene glycol) functions which can be polymerized by the radical route, it was possible to dispense with the presence of the poly (ethylene glycol) diacrylate used in the first formulations of inks.
- the inks are then used on a DIMATIX inkjet printer. About 2 mL of each of the inks are introduced into cartridges with a printhead having 16 nozzles each delivering 10 picoliters. The prints are made with a “drop spacing” of 50 ⁇ m at 1 mm from the surface to be printed (PE, PVC, PET).
- the surface is annealed under the S2200 Xenon lamp which covers all wavelengths from 250-300 nm to 1000-1200 nm with flashes at 2000 V for 150 milliseconds then no flash for 300 milliseconds.
- the flash series is repeated 20 times.
- the printed and crosslinked surfaces are introduced into a mixture of deionized water / ethanol (50/50) and sonicated at full power for 10 minutes.
- a film of the crosslinked solid deposition type is obtained after photonic annealing, consisting of a three-dimensional network, obtained from the various compounds with radical polymerizable functions, contained in the ink.
- the polyionene is thus incorporated covalently into this network.
- 6-1B ink provides the most homogeneous coating.
- the samples with the deposits from the 6-1B ink were cleaned with ultrasound for 10 minutes in a water / ethanol mixture (50/50). These cleaned samples were then analyzed by infrared spectroscopy (FTIR) and XPS, to certify the presence of deposits and their maintenance after ultrasonic cleaning.
- FTIR infrared spectroscopy
- XPS X-ray photoelectron spectroscopy
- the XPS and FTIR spectroscopy analyzes show that the films obtained are covalently grafted onto the printed PE surface.
- the FTIR spectrum makes it possible to attest to the retention of the 6-1B ink on the PVC by the presence of characteristic peaks which can be attributed to the ink (FIG. 2).
- the peak at 3500 cm 1 corresponds to the elongation of the OH bonds.
- the peaks at 1173 and 1103 cm 1 correspond to the elongation of the COC bonds (ethers).
- the XPS analyzes clearly show the presence of the 6-1B ink deposit, after ultrasonic cleaning.
- the nitrogen contribution is present at the same time on the overall spectrum of native PET and that of PET ink 6-1B ( Figure 5A).
- the high resolution spectra N ls make it possible to observe a difference in contribution (FIG. 5B).
- N ls of native PET the contribution is a single peak which corresponds to the CN bonds
- the contribution consists of two peaks corresponding to the CN and CN bonds. + . This double peak is characteristic of the presence of PI.
- the deposition of ink on the PET films is also proven.
- Table 11 Chemical compositions of native PET and PET ink 6-1B (atomic%) determined on the global spectra
- 7-1B ink is a formulation with the same reagents and proportions as 6-1B ink as defined in Table 2 above but, for 7-1B ink, a PI 6-6 without a crosslinkable function (double bonds) is used and not PI 6-6 functionalized as in ink 6-1B.
- 7-1B ink a formulation with the same reagents and proportions as 6-1B ink as defined in Table 2 above but, for 7-1B ink, a PI 6-6 without a crosslinkable function (double bonds) is used and not PI 6-6 functionalized as in ink 6-1B.
- These two inks were then printed and crosslinked on PE films according to the protocol described in point II above. Once the inks have been printed and crosslinked, the printed PE substrates are cleaned with ultrasound in a water / ethanol mixture (50/50) and then dried in a vacuum chamber, before the XPS analysis.
- the atomic% determined on the overall spectra and the high resolution spectrum of nitrogen are reported in Tables 13 and 14 below.
- the high resolution spectrum of N ls from PE with 6-1B ink can be divided into two contributions (Figure 6B).
- the 402 eV contribution is characteristic of CN + links and is in the majority compared to the 400 eV contribution of CN links.
- Table 13 Chemical compositions of PE with 6-1B and 7-1B ink (% > atomic) determined on the slobal spectra
- the adhesion tests are tests which make it possible to study the pro- or anti-adhesive effect of the surfaces modified according to the process of the invention and their bactericidal nature, by depositing bacteria on these surfaces.
- total flora FT
- VC viable adherent cultivable bacteria
- the first microbiological tests are adhesion tests carried out with Staphylococcus aureus (S. aureus) in distilled water for 3 hours at 37 ° C with a bacterial suspension at 10 6 CFU.mL 1 (Colony Forming Unit. ML 1 ) . These tests make it possible to certify the pro-adhesive properties of the ink because, in FIG. 7, an increase in the total flora present on the PE film modified with the 6-1B ink compared to the PE film is observed. without treatment.
- the count of viable cultivable bacteria in FIG. 8 shows that there is no difference between the supernatants of the PE film without treatment and of the PE film modified via the bacteriostatic ink. It is deduced from this that there is no release of the polyionenes in the supernatant and that the bacterial inhibition is only due to contact with the PE film modified with the crosslinked 6-1B ink.
- Cytotoxicity tests were carried out according to two distinct methods: - on the one hand, on cell mats of mouse fibroblasts (L929) after 48 h exposure to PE films modified with PI ink (PE ink 6 - 1B; and
- the native PE and PE ink 6-1B are in direct contact with the epidermis.
- the assays do not indicate cytotoxicity of native PE and PE ink 6-1B because the cell viabilities are above 70% ( Figure 10).
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Abstract
Description
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2005148A FR3110589B1 (fr) | 2020-05-20 | 2020-05-20 | Procédé et solution pour préparer une surface à activité bactériostatique et bactéricide, surface ainsi préparée et ses utilisations |
| PCT/FR2021/050887 WO2021234290A1 (fr) | 2020-05-20 | 2021-05-19 | Procédé et solution pour préparer une surface à activité bactériostatique et bactéricide, surface ainsi préparée et ses utilisations |
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| EP4136175A1 true EP4136175A1 (fr) | 2023-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21734391.2A Pending EP4136175A1 (fr) | 2020-05-20 | 2021-05-19 | Procédé et solution pour préparer une surface à activité bactériostatique et bactéricide, surface ainsi préparée et ses utilisations |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20230180744A1 (fr) |
| EP (1) | EP4136175A1 (fr) |
| FR (1) | FR3110589B1 (fr) |
| WO (1) | WO2021234290A1 (fr) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3784649A (en) * | 1971-03-30 | 1974-01-08 | Buckman Labor Inc | High molecular weight ionene polymeric compositions |
| SE444950B (sv) * | 1984-09-28 | 1986-05-20 | Ytkemiska Inst | Ytbelagd artikel, forfarande och medel for framstellning derav samt anvendning derav |
| US4980067A (en) | 1985-07-23 | 1990-12-25 | Cuno, Inc. | Polyionene-transformed microporous membrane |
| US20030021761A1 (en) * | 2001-01-18 | 2003-01-30 | Geltex Pharmaceuticals, Inc. | Ionene polymers and their use in treating mucositis |
| US7204997B2 (en) * | 2002-01-29 | 2007-04-17 | Supratek Pharma Inc. | Responsive microgel and methods related thereto |
| WO2008049108A1 (fr) | 2006-10-19 | 2008-04-24 | Northwestern University | Revêtements multifonctionnels indépendants de la surface et modificateurs de surface et leurs applications |
| FR2910010B1 (fr) | 2006-12-19 | 2009-03-06 | Commissariat Energie Atomique | Procede de preparation d'un film organique a la surface d'un support solide dans des conditions non-electrochimiques, support solide ainsi obtenu et kit de preparation |
| CN101818005B (zh) * | 2010-02-21 | 2012-07-25 | 苏州科斯伍德油墨股份有限公司 | 一种防菌抑菌uv胶印油墨 |
| WO2019099183A1 (fr) * | 2017-11-17 | 2019-05-23 | The Procter & Gamble Company | Procédés pour appliquer un matériau sur des articles |
| FR3090271B1 (fr) * | 2018-12-19 | 2021-03-05 | Commissariat A L’Energie Atomique Et Aux Energies Alternatives Cea | Procédé de préparation d’un matériau biocide, bactéricide et/ou bactériostatique |
-
2020
- 2020-05-20 FR FR2005148A patent/FR3110589B1/fr active Active
-
2021
- 2021-05-19 EP EP21734391.2A patent/EP4136175A1/fr active Pending
- 2021-05-19 WO PCT/FR2021/050887 patent/WO2021234290A1/fr not_active Ceased
- 2021-05-19 US US17/999,259 patent/US20230180744A1/en active Pending
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| Publication number | Publication date |
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| WO2021234290A1 (fr) | 2021-11-25 |
| US20230180744A1 (en) | 2023-06-15 |
| FR3110589A1 (fr) | 2021-11-26 |
| FR3110589B1 (fr) | 2024-02-02 |
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