WO2011104468A1 - Method for protecting building surfaces against insects, and associated protective netting - Google Patents

Method for protecting building surfaces against insects, and associated protective netting Download PDF

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Publication number
WO2011104468A1
WO2011104468A1 PCT/FR2011/050347 FR2011050347W WO2011104468A1 WO 2011104468 A1 WO2011104468 A1 WO 2011104468A1 FR 2011050347 W FR2011050347 W FR 2011050347W WO 2011104468 A1 WO2011104468 A1 WO 2011104468A1
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Prior art keywords
fibers
polymer composition
against insects
insecticidal agent
sheet
Prior art date
Application number
PCT/FR2011/050347
Other languages
French (fr)
Inventor
Antoine Boutiron
Julien Boutiron
Claude Stock
Original Assignee
Néoviridis
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Publication of WO2011104468A1 publication Critical patent/WO2011104468A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/72—Pest control
    • 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
    • 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
    • A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering

Definitions

  • the present invention relates to a process for obtaining a protective veil of building surfaces against insects and in particular termites.
  • Another method that has already been proposed is to unwind on the surface to be protected a plastic film in which an insecticidal agent is integrated.
  • Such films are made by impregnating the plastic with the insecticidal agent or by hot mixing the insecticidal agent with the molten plastic material.
  • Such films are not without disadvantages insofar as obtaining them by hot mixing entails risks of evaporation of the insecticidal agent that may be detrimental to the environment.
  • the impregnation process requires the handling of a film from which the insecticide can be extracted, thus posing a danger to the personnel in charge of handling.
  • the present invention aims to overcome these disadvantages.
  • the protective veil obtained by carrying out the process according to the invention consists of a single, uniformly impregnated layer of the polymer composition containing the insecticide, and that this method is implemented on-line, in one step.
  • the insecticide may advantageously be chosen from common toxicides.
  • insecticidal agents may be used: bifenthrin, chlorfenapyr, fipronil or permethrin.
  • the insecticidal agent Prior to the incorporation of the insecticidal agent in the polymer composition, it may be advantageous to put it in solution in the aqueous phase, or to predisperse it in a plasticizer so as to facilitate its incorporation into the polymer composition.
  • the veil can be constituted by a nonwoven based on cellulose fibers, polymer fibers and / or glass fibers.
  • the polymeric fibers may advantageously be made of polyester fibers, polyethylene fibers, polyamide fibers or mixtures of such fibers.
  • the impregnating polymer composition may consist of a dispersion of acrylic, styrene acrylic, vinyl and / or styrene-butadiene polymers.
  • the polymeric composition may also include conventional additives such as calcareous or siliceous fillers, dispersing agents, defoamers, thickeners or wetting agents.
  • the protective veil obtained according to the invention can be used in the building in the same way as the conventional plastic insecticide films to protect the building surfaces by unwinding the les of this veil on these surfaces.
  • this protective veil is furthermore particularly advantageous in accordance with the invention to subject this protective veil to a treatment making it possible to improve its hydrophobicity and thus to prevent capillary rise in the concrete through it and to improve the waterproofness of the foundations.
  • the veil makes it possible to obtain good vapor permeability because of its porosity, thus favoring the drying of the concrete slab, and at the same time a hydrophobicity of a nature to prevent the passage of water and the capillary rise.
  • hydrophobic agent such as a hydrophobic polymer
  • This hydrophobic polymer may advantageously be chosen from silicones and / or fluoropolymers.
  • Another particularly advantageous possibility consists in subjecting the protection film, after the drying step, thus in line, to a treatment with a plasma cloud in which a fluorinated compound or a silicone in gaseous form is injected so as to make it hydrophobic.
  • the invention also relates to a protective veil obtained by the implementation of the aforementioned method.
  • Such a protective veil, applied to the building surfaces before construction and pouring of a concrete slab can protect these surfaces against insects and especially termites.
  • This protective veil also allows capillary lifts to be avoided in the cast concrete slab.
  • the mixture of constituents is homogenized in the laboratory in a 2L beaker using a magnetic stirrer.
  • a nonwoven web formed of 30% polyester fiber and 70% cellulose fiber 60 g / m 2 is then impregnated using a laboratory size-press to obtain a total mass of 85 g / m 2 is a basis weight of 25 g / m 2 of polymer after drying.
  • the final veil obtained can be used to protect against termites by spreading it over the building surfaces. On the other hand, it has hydrophobic characteristics that prevent capillary rise while remaining vapor permeable.
  • the mixture of constituents is homogenized in the laboratory in a 2L beaker using a magnetic stirrer.
  • a non-woven web of 30% polyester fiber and 70% cellulose fiber 35 g / m 2 is then impregnated with a laboratory size-press to obtain a total mass of 50 g / m 2 is a weight of 15 g / m 2 of polymer after drying.
  • the final veil obtained can be used to serve as termite protection by spreading it over the building surfaces. It also has hydrophobic characteristics preventing capillary rise while remaining vapor permeable.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Zoology (AREA)
  • Architecture (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Catching Or Destruction (AREA)

Abstract

The invention relates to a method for producing a netting for protecting building surfaces against insects, in particular termites, said netting being characterized by the following steps: preparing a mixture of flexible natural and/or synthetic fibers and water in a pulper; spreading out a sheet of said mixture on an essentially horizontal, perforated conveyor belt, forming a filter, so as to remove a large portion of the water contained in the sheet; transferring said sheet into a padder or a size press so as to soak same with a polymer composition containing between 0.01 and 10 wt % of an insecticidal agent; and transferring the thus-treated sheet into a drying station so as to produce a continuous, solid, and flexible protective netting containing the insecticidal agent.

Description

PROCEDE DE PROTECTION DES SURFACES A BATIR CONTRE LES INSECTES,  METHOD FOR PROTECTING BUILDING SURFACES AGAINST INSECTS,
ET VOILE DE PROTECTION ASSOCIE  AND PROTECTION SAIL
La présente invention a pour objet un procédé d'obtention d'un voile de protection des surfaces à bâtir contre les insectes et notamment les termites. The present invention relates to a process for obtaining a protective veil of building surfaces against insects and in particular termites.
Actuellement, la protection anti-termites du bâti avant construction est réalisée par l'utilisation des méthodes suivantes : l'aspersion, la pulvérisation ou l'épandage de produits liquides contenant une dose d'agent insecticide.  Currently, the termite protection of the frame before construction is achieved by the use of the following methods: sprinkling, spraying or spreading liquid products containing a dose of insecticidal agent.
Une autre méthode qui a déjà été proposée consiste à dérouler sur la surface à protéger un film en matière plastique auquel est intégré un agent insecticide.  Another method that has already been proposed is to unwind on the surface to be protected a plastic film in which an insecticidal agent is integrated.
De tels films sont réalisés par imprégnation de la matière plastique par l'agent insecticide ou par mélange à chaud de l'agent insecticide avec la matière plastique en fusion.  Such films are made by impregnating the plastic with the insecticidal agent or by hot mixing the insecticidal agent with the molten plastic material.
De tels films ne sont pas dénués d'inconvénients dans la mesure où leur obtention par mélange à chaud entraîne des risques d'évaporation de l'agent insecticide pouvant être préjudiciable à l'environnement.  Such films are not without disadvantages insofar as obtaining them by hot mixing entails risks of evaporation of the insecticidal agent that may be detrimental to the environment.
De plus, le processus d'imprégnation nécessite la manipulation d'un film dont l'insecticide peut être extrait, faisant ainsi courir un danger au personnel chargé de la manipulation.  In addition, the impregnation process requires the handling of a film from which the insecticide can be extracted, thus posing a danger to the personnel in charge of handling.
La présente invention a pour objet de remédier à ces inconvénients.  The present invention aims to overcome these disadvantages.
A cet effet, celle-ci propose un procédé d'obtention d'un voile de protection des surfaces à bâtir contre les insectes et notamment les termites caractérisé par la succession des étapes consistant à :  For this purpose, it proposes a method for obtaining a protective veil of building surfaces against insects and in particular termites characterized by the succession of steps consisting of:
- préparer dans un pulpeur un mélange de fibres naturelles et/ ou synthétiques souples et d'eau  - prepare in a pulper a mixture of natural fibers and / or synthetic soft and water
- étaler une nappe de ce mélange sur une bande transporteuse perforée essentiellement horizontale formant filtre de façon à éliminer une grande partie de l'eau qu'elle contient,  spread a sheet of this mixture on a substantially horizontal perforated perforated conveyor belt so as to eliminate a large part of the water which it contains,
- faire passer cette nappe dans un foulard ou une size press de façon à l'imprégner d'une composition polymère renfermant entre 0,01 % et 10 % en poids d'un agent insecticide, et  - passing this web in a scarf or a size press so as to impregnate a polymer composition containing between 0.01% and 10% by weight of an insecticidal agent, and
faire passer la nappe ainsi traitée dans un poste de séchage de façon à obtenir un voile de protection continu solide et souple renfermant l'agent insecticide. Il est essentiel que le voile de protection obtenu par la mise en œuvre du procédé conforme à l'invention soit constitué d'une seule couche imprégnée uniformément de la composition polymère renfermant l'insecticide, et que ce procédé soit mis en œuvre en ligne, en une seule étape. passing the thus treated web into a drying station so as to obtain a solid and flexible continuous protective web containing the insecticidal agent. It is essential that the protective veil obtained by carrying out the process according to the invention consists of a single, uniformly impregnated layer of the polymer composition containing the insecticide, and that this method is implemented on-line, in one step.
Selon l'invention, l'insecticide peut avantageusement être choisi parmi les termicides courants.  According to the invention, the insecticide may advantageously be chosen from common termicides.
On peut notamment avoir recours aux agents insecticides suivants : la bifenthrine, le chlorfénapyr, le fipronil ou la permethrine.  In particular, the following insecticidal agents may be used: bifenthrin, chlorfenapyr, fipronil or permethrin.
Préalablement à l'incorporation de l'agent insecticide dans la composition polymère, il peut être avantageux de le mettre en solution en phase aqueuse, ou de le prédisperser dans un plastifiant de façon à faciliter son incorporation dans la composition polymère.  Prior to the incorporation of the insecticidal agent in the polymer composition, it may be advantageous to put it in solution in the aqueous phase, or to predisperse it in a plasticizer so as to facilitate its incorporation into the polymer composition.
Selon l'invention le voile peut être constitué par un non tissé à base de fibres de cellulose, de fibres polymères et/ou de fibres de verre.  According to the invention the veil can be constituted by a nonwoven based on cellulose fibers, polymer fibers and / or glass fibers.
Les fibres polymères peuvent être avantageusement constituées de fibres de polyester, de fibres de polyéthylène, de fibres de polyamide ou de mélanges de telles fibres.  The polymeric fibers may advantageously be made of polyester fibers, polyethylene fibers, polyamide fibers or mixtures of such fibers.
Selon l'invention, la composition polymère d'imprégnation peut être constituée par une dispersion de polymères acryliques, styrène acryliques, vinyliques et/ou de styrène butadiène.  According to the invention, the impregnating polymer composition may consist of a dispersion of acrylic, styrene acrylic, vinyl and / or styrene-butadiene polymers.
La composition polymère peut également renfermer des additifs conventionnels tels que des charges calcaires ou siliceuses, des agents dispersants, des agents anti-mousse, des agents épaississants ou des agents mouillants.  The polymeric composition may also include conventional additives such as calcareous or siliceous fillers, dispersing agents, defoamers, thickeners or wetting agents.
Le voile de protection obtenu conformément à l'invention peut être utilisé dans le bâtiment de la même manière que les films insecticides en matière plastique conventionnels pour protéger les surfaces à bâtir en déroulant les lès de ce voile sur ces surfaces.  The protective veil obtained according to the invention can be used in the building in the same way as the conventional plastic insecticide films to protect the building surfaces by unwinding the les of this veil on these surfaces.
Après la mise en place de ce voile, une dalle de béton peut être directement coulée sur celui-ci.  After the installation of this veil, a concrete slab can be directly cast on it.
Il est en outre particulièrement avantageux conformément à l'invention de faire subir à ce voile de protection un traitement permettant d'en améliorer l'hydrophobie et ainsi d'éviter les remontées capillaires dans le béton au travers de celui-ci et d'améliorer l'étanchéité des fondations. Par suite le voile permet d'obtenir une bonne perméabilité à la vapeur du fait de sa porosité, favorisant ainsi le séchage de la dalle de béton, et parallèlement une hydrophobie de nature à empêcher le passage de l'eau et les remontées capillaires. It is furthermore particularly advantageous in accordance with the invention to subject this protective veil to a treatment making it possible to improve its hydrophobicity and thus to prevent capillary rise in the concrete through it and to improve the waterproofness of the foundations. As a result, the veil makes it possible to obtain good vapor permeability because of its porosity, thus favoring the drying of the concrete slab, and at the same time a hydrophobicity of a nature to prevent the passage of water and the capillary rise.
Pour obtenir un tel caractère hydrophobe, on peut envisager, selon une autre caractéristique de l'invention d'ajouter à la composition polymère d'imprégnation un agent hydrophobe tel qu'un polymère hydrophobe.  To obtain such a hydrophobic character, it may be envisaged, according to another characteristic of the invention, to add to the impregnating polymer composition a hydrophobic agent such as a hydrophobic polymer.
Ce polymère hydrophobe peut avantageusement être choisi parmi les silicones et/ ou les polymères fluorés.  This hydrophobic polymer may advantageously be chosen from silicones and / or fluoropolymers.
Une autre possibilité, particulièrement avantageuse, consiste à soumettre le voile de protection, après l'étape de séchage, donc en ligne, à un traitement par un nuage de plasma dans lequel on injecte un composé fluoré ou un silicone sous forme gazeuse de façon à le rendre hydrophobe.  Another particularly advantageous possibility consists in subjecting the protection film, after the drying step, thus in line, to a treatment with a plasma cloud in which a fluorinated compound or a silicone in gaseous form is injected so as to make it hydrophobic.
L'invention se rapporte également à un voile de protection obtenu par la mise en œuvre du procédé susmentionné.  The invention also relates to a protective veil obtained by the implementation of the aforementioned method.
Un tel voile de protection, appliqué sur les surfaces à bâtir avant construction et coulage d'une dalle de béton permet de protéger ces surfaces contre les insectes et notamment les termites.  Such a protective veil, applied to the building surfaces before construction and pouring of a concrete slab can protect these surfaces against insects and especially termites.
Ce voile de protection permet parallèlement d'éviter les remontées capillaires dans la dalle de béton ainsi coulée.  This protective veil also allows capillary lifts to be avoided in the cast concrete slab.
Les caractéristiques du procédé et du voile de protection qui font l'objet de l'invention seront décrites plus en détail en se référant aux exemples ci-dessous de compositions polymères d'imprégnation  The characteristics of the process and the protective veil which are the subject of the invention will be described in more detail with reference to the examples below of impregnating polymer compositions.
EXEMPLE 1 EXAMPLE 1
Figure imgf000004_0001
Figure imgf000004_0001
Le mélange des constituants est homogénéisé au laboratoire dans un bêcher de 2L à l'aide d'un agitateur magnétique. Un voile de non tissé formé de 30 % de fibres de polyester et 70 % de fibre de cellulose de grammage 60 g/ m2 est ensuite imprégné à l'aide d'une size-press de laboratoire afin d'obtenir une masse totale de 85 g/m2 soit un grammage de 25 g/m2 de polymère après séchage. The mixture of constituents is homogenized in the laboratory in a 2L beaker using a magnetic stirrer. A nonwoven web formed of 30% polyester fiber and 70% cellulose fiber 60 g / m 2 is then impregnated using a laboratory size-press to obtain a total mass of 85 g / m 2 is a basis weight of 25 g / m 2 of polymer after drying.
Le voile final obtenu peut être utilisé pour servir de protection contre les termites en l'étalant sur les surfaces à bâtir. Il possède d'autre part des caractéristiques hydrophobes empêchant les remontées capillaires tout en restant perméable à la vapeur  The final veil obtained can be used to protect against termites by spreading it over the building surfaces. On the other hand, it has hydrophobic characteristics that prevent capillary rise while remaining vapor permeable.
EXEMPLE2 EXAMPLE 2
Figure imgf000005_0001
Figure imgf000005_0001
Le mélange des constituants est homogénéisé au laboratoire dans un bêcher de 2L à l'aide d'un agitateur magnétique. The mixture of constituents is homogenized in the laboratory in a 2L beaker using a magnetic stirrer.
Un voile de non tissé formé de 30 % de fibres de polyester et 70 % de fibre de cellulose de grammage 35 g/m2 est ensuite imprégné à l'aide d'une size-press de laboratoire afin d'obtenir une masse totale de 50 g/m2 soit un grammage de 15 g/m2 de polymère après séchage. A non-woven web of 30% polyester fiber and 70% cellulose fiber 35 g / m 2 is then impregnated with a laboratory size-press to obtain a total mass of 50 g / m 2 is a weight of 15 g / m 2 of polymer after drying.
De même que dans l'exemple 1 , le voile final obtenu peut être utilisé pour servir de protection contre les termites en l'étalant sur les surfaces à bâtir. Il possède également des caractéristiques hydrophobes empêchant les remontées capillaires tout en restant perméable à la vapeur.  As in Example 1, the final veil obtained can be used to serve as termite protection by spreading it over the building surfaces. It also has hydrophobic characteristics preventing capillary rise while remaining vapor permeable.

Claims

R E V E N D I C A T I O N S  R E V E N D I C A T IO N S
1°) Procédé de protection des surfaces à bâtir contre les insectes et notamment les termites 1 °) Method of protection of building surfaces against insects and in particular termites
caractérisé par les étapes suivantes : characterized by the following steps:
- on prépare dans un pulpeur un mélange de fibres naturelles et/ ou synthétiques souples et d'eau  a mixture of natural and / or synthetic synthetic fibers and water is prepared in a pulper
- on étale une nappe de ce mélange sur une bande transporteuse perforée essentiellement horizontale formant filtre de façon à éliminer une grande partie de l'eau qu'elle contient,  a sheet of this mixture is spread on an essentially horizontal perforated perforated conveyor belt so as to eliminate a large part of the water which it contains;
- on fait passer cette nappe dans un foulard ou une size press de façon à l'imprégner d'une composition polymère renfermant entre 0,01 % et 10 % en poids d'un agent insecticide,  this web is passed through a scarf or a size press so as to impregnate it with a polymer composition containing between 0.01% and 10% by weight of an insecticidal agent,
on fait passer la nappe ainsi traitée dans un poste de séchage de façon à obtenir un voile de protection continu solide et souple renfermant l'agent insecticide, et  the web thus treated is passed through a drying station so as to obtain a solid and flexible continuous protective film containing the insecticidal agent, and
- on applique le voile de protection ainsi obtenu sur les surfaces à protéger avant construction.  the protective veil thus obtained is applied to the surfaces to be protected before construction.
2°) Procédé selon la revendication 1 2 °) Method according to claim 1
caractérisé en ce que, characterized in that
on utilise des fibres de cellulose, des fibres polymères et/ou des fibres de verre. cellulose fibers, polymeric fibers and / or glass fibers are used.
3°) Procédé selon la revendication 2 3 °) Method according to claim 2
caractérisé en ce que characterized in that
les fibres polymères sont des fibres de polyester, des fibres de polyéthy- lène, des fibres de polypropylène, des fibres de polyamide ou des mélanges de ces fibres. the polymeric fibers are polyester fibers, polyethylene fibers, polypropylene fibers, polyamide fibers or mixtures of these fibers.
4°) Procédé selon l'une quelconque des revendications 1 à 3 4 °) Method according to any one of claims 1 to 3
caractérisé en ce que, characterized in that
la composition polymère d'imprégnation est constituée par une dispersion de polymères acryliques, styrène acryliques, vinyliques et/ou de styrène- butadiène the impregnating polymer composition is constituted by a dispersion of acrylic, styrene acrylic, vinyl and / or styrene-butadiene polymers
5°) Procédé selon l'une quelconque des revendications 1 à 4 5 °) Method according to any one of claims 1 to 4
caractérisé en ce que, l'on ajoute à la composition polymère d'imprégnation des additifs conventionnels tels que de charges calcaires ou siliceuses, des agents dispersants, des agents anti-mousse, des agents épaississants, ou des agents mouillants. characterized in that conventional additives such as calcareous or siliceous fillers, dispersing agents, defoamers, thickeners, or wetting agents are added to the impregnating polymer composition.
6°) Procédé selon l'une quelconque des revendications 1 à 5 6 °) Method according to any one of claims 1 to 5
caractérisé en ce que, characterized in that
l'on ajoute à la composition polymère d'imprégnation un agent hydro- phobe tel qu'un polymère hydrophobe notamment un polymère à base de silicone et/ ou un polymère fluoré. a hydrophobic agent such as a hydrophobic polymer, especially a silicone-based polymer and / or a fluoropolymer, is added to the impregnating polymer composition.
7°) Procédé selon l'une quelconque des revendications 1 à 6 7 °) Method according to any one of claims 1 to 6
caractérisé en ce que, characterized in that
après l'étape de séchage, on soumet le voile de protection à un traitement par un nuage de plasma dans lequel on injecte un composé fluoré ou un silicone sous forme gazeuse de façon à le rendre hydrophobe. after the drying step, the protective film is subjected to a plasma cloud treatment in which a fluorinated compound or a silicone in gaseous form is injected so as to render it hydrophobic.
8°) Procédé selon l'une quelconque des revendications 1 à 7, 8 °) Method according to any one of claims 1 to 7,
caractérisé en ce qu' characterized in that
on déroule des lés du voile de protection sur les surfaces à protéger. strips of the protective veil are rolled over the surfaces to be protected.
9°) Procédé selon l'une quelconque des revendications 1 à 8, 9 °) Method according to any one of claims 1 to 8,
caractérisé en ce qu' characterized in that
on coule une dalle de béton sur le voile de protection appliqué sur les sur- faces à protéger. a concrete slab is poured over the protective veil applied to the surfaces to be protected.
10°) Dispositif de protection des surfaces à bâtir contre les insectes et notamment les termites, 10 °) Device for protecting building surfaces against insects, especially termites,
caractérisé en ce qu' characterized in that
il est constitué par un voile continu solide et souple de fibres naturelles et/ ou synthétiques imprégnées d'une composition polymère renfermant entre 0,01 % et 10 % en poids d'un agent insecticide. it consists of a solid and flexible continuous web of natural and / or synthetic fibers impregnated with a polymer composition containing between 0.01% and 10% by weight of an insecticidal agent.
PCT/FR2011/050347 2010-02-25 2011-02-18 Method for protecting building surfaces against insects, and associated protective netting WO2011104468A1 (en)

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FR1051340 2010-02-25
FR1051340A FR2956676B1 (en) 2010-02-25 2010-02-25 METHOD FOR OBTAINING A SAFE FOR PROTECTING THE SURFACES TO BE BUILT AGAINST INSECTS AND IN PARTICULAR THE TERMITES

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US11234436B2 (en) * 2015-04-17 2022-02-01 Basf Agrochemical Products B.V. Method for controlling non-crop pests

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FR2956676B1 (en) 2013-05-10

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