WO1997013676A1 - Device for drying the hull of a vessel such as a yacht - Google Patents

Device for drying the hull of a vessel such as a yacht Download PDF

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Publication number
WO1997013676A1
WO1997013676A1 PCT/FR1996/001595 FR9601595W WO9713676A1 WO 1997013676 A1 WO1997013676 A1 WO 1997013676A1 FR 9601595 W FR9601595 W FR 9601595W WO 9713676 A1 WO9713676 A1 WO 9713676A1
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WO
WIPO (PCT)
Prior art keywords
support sheet
water
product
hull
absorbent product
Prior art date
Application number
PCT/FR1996/001595
Other languages
French (fr)
Inventor
Agnès BAUDURET
Original Assignee
Bauduret Agnes
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bauduret Agnes filed Critical Bauduret Agnes
Priority to AU73044/96A priority Critical patent/AU7304496A/en
Publication of WO1997013676A1 publication Critical patent/WO1997013676A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/04—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements
    • B29C73/10—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D using preformed elements using patches sealing on the surface of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B71/00—Designing vessels; Predicting their performance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/16—Drying solid materials or objects by processes not involving the application of heat by contact with sorbent bodies, e.g. absorbent mould; by admixture with sorbent materials

Definitions

  • the present invention relates to a device for drying the hull of a boat, in particular a pleasure boat.
  • Polyester resin reinforced with glass fibers is not in itself waterproof, which it even tends to absorb. It is therefore covered by a semi-permeable and relatively thin sealing layer, called
  • the layers of glass fibers tend to absorb water through the gel-coat.
  • This water in particular when it encounters any air bubbles existing between the layers of fabric, comes to hydrolyze the polyester resin. Its concentration increases due to this hydrolysis, and there is a phenomenon of osmosis proper through the gel-coat and the laminated layers.
  • These blisters are capable of deforming the surface of the shell, since the osmotic pressure exerted can reach five kilograms per square centimeter, to stabilize, after a certain period, at 0.3 kilograms per square centimeter.
  • the accumulation of water can lead to partial delamination of the laminated layers and decreases the mechanical resistance of the material as well as the longevity of the shell.
  • the salts in solution provided by the water inside the shell wall and the products resulting from the hydrolysis remain in this wall after evaporation of the water and favor the reabsorption of water.
  • the invention aims to remedy all of these drawbacks by providing a device which makes it possible to significantly reduce the time necessary for drying, which is insensitive to weather conditions, which is simple and easy to use, in particular by individuals, and which allows an effective treatment of the hull.
  • this device comprises:
  • At least one support sheet made of extensible and impermeable material
  • the support sheet and the absorbent product are simply applied to the shell and held against the latter by said adhesive means. After expiration of a determined period of time necessary for the absorption of the water contained in the shell, the support sheet and the absorbent product are removed.
  • the salts dissolved in the water and the products resulting from the hydrolysis are absorbed at the same time as this water, and do not remain in the shell after drying. , which is particularly important for the quality of the subsequent waterproofing treatment.
  • the support sheet thanks to the extensibility of its constituent material, can undergo without tearing or detachment the increase in volume of the product capable of absorbing water, following this absorption.
  • the impermeability of this same material makes it possible to prevent any detrimental influence of weather conditions on drying.
  • This material can in particular be an extruded polypropylene, with a grammage of the order of 100 g / m 2 .
  • the adhesive means preferably consist of an adhesive layer placed on the face of the support sheet intended to be applied against the shell. They can also be constituted by adhesive strips glued so as to overlap the edges of the support sheet and the shell, or the edges of two contiguous support sheets.
  • the absorbent product is composed
  • This product has been found to be perfectly suitable for implementing the invention, and to allow a reduction in the drying time of the order of half compared to the drying time required with the aforementioned forced drying technique.
  • a cellulose derivative such as an ethyl-methyl-hydrocellulose produced under the trade name of "TYLOSE” by the company HOECHST, or under the trade names of "AQUALON” and “NATROSOL” by the company
  • HERCULES is added to the absorbent product thus formed, which has the effect of increasing the absorbent power of the latter.
  • the adhesive can be applied, during the manufacture of the device, to areas separate from those receiving the absorbent product. It can also be applied directly against the support sheet and receive the absorbent product thereon, in which case the absorbent product is deposited in the form of zones • interrupting recess from the edges of the surface of the sheet covered with adhesive. Alternatively, the absorbent product is applied directly against the support sheet and the adhesive is applied to this absorbent product.
  • this adhesive is porous and is for example constituted by a nonwoven of the polypropylene type, or has large openings making it possible to discover the absorbent product, such as a mesh structure, for example.
  • the support sheet is dark in color, in particular black, to undergo heating when it is exposed to solar radiation. This heating promotes the absorption of the water contained in the hull.
  • the device can also comprise a reactive product, such as a Cobalt salt or a silica gel, which changes color in the presence of water.
  • a reactive product such as a Cobalt salt or a silica gel, which changes color in the presence of water.
  • This reactive product can be located in a peelable part of the support sheet, isolated by adhesive from the rest of the latter, or the support sheet can comprise a transparent zone, opposite the zone in which this product is square.
  • a possible change in color of this product provides information on the presence of water in the shell and, depending on the color obtained, allows an evaluation of the amount of water present.
  • the device according to the invention can thus be used for drying the wall of a shell and cleaning it up for a waterproofing treatment.
  • the device also enables the solution contained in the shell to be taken without coring, for analysis purposes. Depending on the products present in the solution, it is in particular possible to identify the type of resin used, with a view to using, during treatment, the most suitable products.
  • a set of sheets are applied to the hull with overlapping from one sheet to the other . If it appears that the shell wall contains a lot of water, the sheets are preferably positioned without overlapping but side by side, with an adhesive strip stuck to the shell placed between their edges, to prevent any risk of migration of water from an upper leaf to a lower leaf.
  • Certain support sheets, or all of them may comprise, at least along one of their longitudinal edges, an adhesive and waterproof strip, of relatively small thickness, making it possible to form an anti-drip protection at the level of their edge most exposed to weather and runoff, in particular their upper edge. Any risk of water infiltration is thus eliminated.
  • the device can adopt any shape suitable for the surface to be treated, in particular circular, for application around a through-hull, in a plate, for an application in the full wall of the hull, or in a strip, for one application along the waterline.

Abstract

A device including at least one backing sheet made of a stretchable water-proof material, a water absorbing and retaining substance provided on one side of the backing sheet, and adhesive means for holding the backing sheet and the absorbent substance in close contact with a portion of the hull for as long as it takes the absorbent substance to absorb water from the wall of the hull, and completely sealing off the absorbent substance from the environment around the edges of the backing sheet.

Description

DISPOSITIF DE SECHAGE DE LA COQUE D'UN BATEAU, NOTAMMENT D'UN BATEAU DE PLAISANCE La présente invention concerne un dispositif de séchage de la coque d'un bateau, notamment d'un bateau de plaisance. The present invention relates to a device for drying the hull of a boat, in particular a pleasure boat.
Plusieurs matériaux utilisés pour la construction des coques de bateaux de plaisance ont une certaine tendance à absorber l'eau. Il peut s'agir principalement de résine polyester armée de fibres de verre, mais également de bois, de matériaux à base de bois (contreplaqué ou bois moulé notamment) ou de ciment armé dit "ferro-ciment".Several materials used for the construction of pleasure boat hulls have a certain tendency to absorb water. It can mainly be polyester resin reinforced with glass fibers, but also wood, wood-based materials (plywood or molded wood in particular) or reinforced cement called "ferro-cement".
La résine polyester armée de fibres de verre n'est pas en elle-même étanche à l'eau, qu'elle a même tendance à absorber. Elle est donc recouverte par une couche d'étanchéité semi-perméable et relativement fine, ditePolyester resin reinforced with glass fibers is not in itself waterproof, which it even tends to absorb. It is therefore covered by a semi-permeable and relatively thin sealing layer, called
"gel-coat"."gel-coat".
Ce matériau, très répandu, présente l'inconvénient important de subir un phénomène inéluctable et irréversible, dit "d'osmose".This material, very widespread, has the significant drawback of undergoing an inescapable and irreversible phenomenon, called "osmosis".
En effet, les couches de fibres de verre ont tendance à absorber de l'eau à travers le gel-coat. Cette eau, notamment lorsqu'elle rencontre d'éventuelles bulles d'air existant entre les couches de tissu, vient hydrolyser la résine polyester. Sa concentration augmente du fait de cette hydrolyse, et il se produit un phénomène d'osmose proprement dit au travers du gel-coat et des couches stratifiées. Il en résulte une accumulation d'eau entre ce gel-coat et ces couches stratifiées, ce qui crée des cloques pouvant atteindre 10 millimètres de diamètre. Ces cloques sont capables de déformer la surface de la coque, étant donné que la pression osmotique exercée peut atteindre cinq kilogrammes au centimètre carré, pour se stabiliser, après une certaine période, à 0,3 kilogramme au centimètre carré. L'accumulation d'eau peut conduire à un délaminage partiel des couches stratifiées et diminue la résistance mécanique du matériau ainsi que la longévité de la coque.Indeed, the layers of glass fibers tend to absorb water through the gel-coat. This water, in particular when it encounters any air bubbles existing between the layers of fabric, comes to hydrolyze the polyester resin. Its concentration increases due to this hydrolysis, and there is a phenomenon of osmosis proper through the gel-coat and the laminated layers. This results in an accumulation of water between this gel-coat and these laminated layers, which creates blisters of up to 10 millimeters in diameter. These blisters are capable of deforming the surface of the shell, since the osmotic pressure exerted can reach five kilograms per square centimeter, to stabilize, after a certain period, at 0.3 kilograms per square centimeter. The accumulation of water can lead to partial delamination of the laminated layers and decreases the mechanical resistance of the material as well as the longevity of the shell.
La perte de valeur d'un bateau subissant un phénomène d'osmose est importante. Lorsque les cloques sont visibles à l'oeil nu, il est nécessaire d'effectuer un traitement "curatif" de la coque qui est particulièrement long et onéreux, ce traitement consistant à poncer, raboter ou sabler le gel-coat et les couches stratifiées jusqu'à mettre les cloques à jour, à laisser sécher la coque pendant une durée prolongée, à remettre des couches de tissu imprégné de résine spéciale aux endroits où cela a été rendu nécessaire par le ponçage, à mastiquer et à poncer l'ensemble, puis à appliquer une ou plusieurs nouvelles couches d'imperméabilisation.The loss of value of a boat undergoing a phenomenon of osmosis is significant. When the blisters are visible to the naked eye, it is necessary to carry out a “curative” treatment of the shell which is particularly long and expensive, this treatment consisting of sanding, planing or sanding the gel-coat and the laminated layers up to '' to update the blisters, to allow the hull to dry for an extended period of time, to put back layers of fabric impregnated with special resin in the places where it was made necessary by sanding, to putty and sand the whole, then apply one or more new layers of waterproofing.
Le séchage naturel de la coque, par évaporation, est très lent et demande souvent plusieurs mois devant s'étendre sur la période la plus chaude et la plus sèche de l'année. Le bateau est donc indisponible au cours de cette période, qui est normalement celle privilégiée pour la navigation de plaisance.The natural drying of the shell, by evaporation, is very slow and often requires several months to extend over the hottest and driest period of the year. The boat is therefore unavailable during this period, which is normally the preferred one for pleasure boating.
De plus, les sels en solution apportés par l'eau à 1*intérieur de la paroi de la coque et les produits résultant de l'hydrolyse subsistent dans cette paroi après évaporation de l'eau et favorisent la réabsorption d'eau.In addition, the salts in solution provided by the water inside the shell wall and the products resulting from the hydrolysis remain in this wall after evaporation of the water and favor the reabsorption of water.
Les conditions météorologiques, en particulier hygrométriques, peuvent ralentir et perturber ce séchage.Weather conditions, particularly humidity, can slow down and disrupt this drying.
Il est possible de réaliser un séchage forcé en enveloppant la coque dans une bâche et en chauffant l'espace situé entre la coque et la bâche. Cette méthode a toutefois pour inconvénients d'être relativement fastidieuse de mise en oeuvre, et d'impliquer une surveillance étroite. Le temps nécessaire au séchage reste long, et les inconvénients précités du séchage naturel subsistent. L'invention vise à remédier à l'ensemble de ces inconvénients, en fournissant un dispositif qui permette de réduire nettement le temps nécessaire au séchage, qui soit insensible aux conditions météorologiques, qui soit simple et facile à utiliser, notamment par des particuliers, et qui permette un traitement efficace de la coque.It is possible to carry out forced drying by wrapping the shell in a tarpaulin and heating the space between the shell and the tarpaulin. However, this method has the disadvantages of being relatively tedious to implement, and of involving close monitoring. The time required for drying remains long, and the aforementioned drawbacks of natural drying remain. The invention aims to remedy all of these drawbacks by providing a device which makes it possible to significantly reduce the time necessary for drying, which is insensitive to weather conditions, which is simple and easy to use, in particular by individuals, and which allows an effective treatment of the hull.
A cet effet, ce dispositif comprend :To this end, this device comprises:
- au moins une feuille-support, en matériau extensible et imperméable ;- at least one support sheet, made of extensible and impermeable material;
- un produit apte à absorber de l'eau et à retenir l'eau absorbée, placé sur l'une des faces de la feuille- support, eta product capable of absorbing water and retaining the absorbed water, placed on one of the faces of the support sheet, and
- des moyens adhésifs permettant de maintenir la feuille-support et le produit absorbant contre une partie de la coque, en l'appliquant intimement contre celle-ci pendant le temps nécessaire à l'absorption, par ledit produit absorbant, de l'eau contenue dans la paroi de la coque, et assurant, au niveau des bords de la feuille-support, une isolation complète du produit absorbant par rapport au milieu ambiant.- adhesive means making it possible to hold the support sheet and the absorbent product against a part of the shell, by applying it intimately against the latter for the time necessary for the absorption, by said absorbent product, of the water contained in the wall of the shell, and ensuring, at the edges of the support sheet, complete isolation of the absorbent product from the ambient environment.
Ainsi, la feuille-support et le produit absorbant sont simplement appliqués sur la coque et maintenus contre celle-ci par lesdits moyens adhésifs. Après écoulement d'un laps de temps déterminé nécessaire à l'absorption de l'eau contenue dans la coque, la feuille-support et le produit absorbant sont retirés.Thus, the support sheet and the absorbent product are simply applied to the shell and held against the latter by said adhesive means. After expiration of a determined period of time necessary for the absorption of the water contained in the shell, the support sheet and the absorbent product are removed.
Les sels dissous dans l'eau et les produits résultant de l'hydrolyse (notamment glycol, styrène, acide acétique dans le cas de résine armée de polyester) sont absorbés en même temps que cette eau, et ne subsistent pas dans la coque après séchage, ce qui est particulièrement important pour la qualité du traitement ultérieur d'imperméabilisation. La feuille-support, grâce à l'extensibilité de son matériau constitutif, peut subir sans déchirure ni décollement l'augmentation de volume du produit apte à absorber l'eau, suite à cette absorption.The salts dissolved in the water and the products resulting from the hydrolysis (in particular glycol, styrene, acetic acid in the case of resin reinforced with polyester) are absorbed at the same time as this water, and do not remain in the shell after drying. , which is particularly important for the quality of the subsequent waterproofing treatment. The support sheet, thanks to the extensibility of its constituent material, can undergo without tearing or detachment the increase in volume of the product capable of absorbing water, following this absorption.
L'imperméabilité de ce même matériau permet d'empêcher toute influence néfaste des conditions météorologiques sur le séchage.The impermeability of this same material makes it possible to prevent any detrimental influence of weather conditions on drying.
Ce matériau peut notamment être un polypropylène extrude, d'un grammage de l'ordre de 100 g/m2.This material can in particular be an extruded polypropylene, with a grammage of the order of 100 g / m 2 .
Les moyens adhésifs sont de préférence constitués par une couche adhésive placée sur la face de la feuille- support destinée à être appliquée contre la coque. Ils peuvent également être constitués par des bandes adhésives collées de manière à chevaucher les bords de la feuille- support et la coque, ou les bords de deux feuilles-support contiguës. De préférence, le produit absorbant est composéThe adhesive means preferably consist of an adhesive layer placed on the face of the support sheet intended to be applied against the shell. They can also be constituted by adhesive strips glued so as to overlap the edges of the support sheet and the shell, or the edges of two contiguous support sheets. Preferably, the absorbent product is composed
_d'un alginate associé à un alcool polyvinylique faiblement hydrolyse._of an alginate combined with a weakly hydrolyzed polyvinyl alcohol.
Ce produit s'est avéré convenir parfaitement à la mise en oeuvre de l'invention, et permettre une réduction du temps de séchage de l'ordre de la moitié par rapport au temps de séchage nécessaire avec la technique de séchage forcé précitée.This product has been found to be perfectly suitable for implementing the invention, and to allow a reduction in the drying time of the order of half compared to the drying time required with the aforementioned forced drying technique.
Avantageusement, un dérivé cellulosique tel qu'un éthyl-méthyl-hydrocellulose produit sous le nom commercial de "TYLOSE" par la société HOECHST, ou sous les noms commerciaux de "AQUALON" et "NATROSOL" par la sociétéAdvantageously, a cellulose derivative such as an ethyl-methyl-hydrocellulose produced under the trade name of "TYLOSE" by the company HOECHST, or under the trade names of "AQUALON" and "NATROSOL" by the company
HERCULES est ajouté au produit absorbant ainsi constitué, ce qui a pour effet d'augmenter le pouvoir absorbant de ce dernier. L'adhésif peut être appliqué, lors de la fabrication du dispositif, sur des zones distinctes de celles recevant le produit absorbant. Il peut également être appliqué directement contre la feuille-support et recevoir le produit absorbant sur lui, auquel cas le produit absorbant est déposé sous forme de zones s•interrompant en retrait des bords de la surface de la feuille recouverte par l'adhésif. Alternativement, le produit absorbant est appliqué directement contre la feuille-support et l'adhésif est appliqué sur ce produit absorbant. Dans ce cas, cet adhésif est poreux et est par exemple constitué par un non-tissé de type polypropylène, ou présente de larges ouvertures permettant de découvrir le produit absorbant, tel qu'une structure en résille, par exemple.HERCULES is added to the absorbent product thus formed, which has the effect of increasing the absorbent power of the latter. The adhesive can be applied, during the manufacture of the device, to areas separate from those receiving the absorbent product. It can also be applied directly against the support sheet and receive the absorbent product thereon, in which case the absorbent product is deposited in the form of zones • interrupting recess from the edges of the surface of the sheet covered with adhesive. Alternatively, the absorbent product is applied directly against the support sheet and the adhesive is applied to this absorbent product. In this case, this adhesive is porous and is for example constituted by a nonwoven of the polypropylene type, or has large openings making it possible to discover the absorbent product, such as a mesh structure, for example.
De préférence, la feuille-support est de couleur sombre, notamment noire, pour subir un échauffement lorsqu'elle est exposée au rayonnement solaire. Cet échauffement favorise l'absorption de l'eau contenue dans la coque.Preferably, the support sheet is dark in color, in particular black, to undergo heating when it is exposed to solar radiation. This heating promotes the absorption of the water contained in the hull.
Le dispositif peut en outre comprendre un produit réactif, tel qu'un sel de Cobalt ou un gel de silice, changeant de couleur en présence d'eau. Ce produit réactif peut être situé dans une partie décollable de la feuille- support, isolée par de l'adhésif du reste de celle-ci, ou la feuille-support peut comprendre une zone transparente, en regard de la zone dans laquelle ce produit est placé.The device can also comprise a reactive product, such as a Cobalt salt or a silica gel, which changes color in the presence of water. This reactive product can be located in a peelable part of the support sheet, isolated by adhesive from the rest of the latter, or the support sheet can comprise a transparent zone, opposite the zone in which this product is square.
Un éventuel changement de couleur de ce produit renseigne sur la présence d'eau dans la coque et, selon la couleur obtenue, permet une évaluation de la quantité d'eau présente. Le dispositif selon l'invention est ainsi utilisable pour assécher la paroi d'une coque et assainir celle-ci en vue d'un traitement d'imperméabilisation.A possible change in color of this product provides information on the presence of water in the shell and, depending on the color obtained, allows an evaluation of the amount of water present. The device according to the invention can thus be used for drying the wall of a shell and cleaning it up for a waterproofing treatment.
Il constitue de plus une solution contre le phénomène dit "d'osmose" des coques de bateaux en résine polyester armée de fibres de verre, puisqu'il permet, à titre préventif, d'éliminer régulièrement, notamment au cours de l'hivernage, l'eau absorbée par la coque, avant que cette eau ne provoque une hydrolyse du matériau.It also constitutes a solution against the so-called "osmosis" phenomenon of hulls of boats made of polyester resin reinforced with glass fibers, since it makes it possible, as a preventive measure, to eliminate regularly, in particular during wintering, the water absorbed by the shell, before this water causes hydrolysis of the material.
Le dispositif permet également de prélever sans carottage la solution contenue dans la coque, à des fins d'analyse. En fonction des produits présents dans la solution, il est notamment possible d'identifier le type de résine utilisée, en vue d'employer, lors du traitement, les produits les plus appropriés.The device also enables the solution contained in the shell to be taken without coring, for analysis purposes. Depending on the products present in the solution, it is in particular possible to identify the type of resin used, with a view to using, during treatment, the most suitable products.
Lorsqu'il est nécessaire de recouvrir une surface importante des oeuvres vives et/ou des oeuvres mortes de la coque, un ensemble de feuilles, de préférence sous forme de bandes, sont appliquées sur la coque avec chevauchement d'une feuille sur l'autre. S'il apparaît que la paroi de la coque contient beaucoup d'eau, les feuilles sont de préférence positionnées sans chevauchement mais côte à côte, avec une bande adhésive collée à la coque placée entre leurs bords, pour prévenir tout risque de migration d'eau d'une feuille supérieure vers une feuille inférieure. Certaines feuilles-support, ou la totalité d'entre elles, peuvent comprendre, au moins le long de l'un de leurs bords longitudinaux, une bande adhésive et étanche, de relativement faible épaisseur, permettant de former une protection anti-ruissellement au niveau de leur tranche la plus exposée aux intempéries et au ruissellement, en particulier leur tranche supérieure. Tout risque d'infiltration d'eau est ainsi éliminé.When it is necessary to cover a large area of live works and / or dead works of the hull, a set of sheets, preferably in the form of strips, are applied to the hull with overlapping from one sheet to the other . If it appears that the shell wall contains a lot of water, the sheets are preferably positioned without overlapping but side by side, with an adhesive strip stuck to the shell placed between their edges, to prevent any risk of migration of water from an upper leaf to a lower leaf. Certain support sheets, or all of them, may comprise, at least along one of their longitudinal edges, an adhesive and waterproof strip, of relatively small thickness, making it possible to form an anti-drip protection at the level of their edge most exposed to weather and runoff, in particular their upper edge. Any risk of water infiltration is thus eliminated.
Pour des traitements locaux, le dispositif peut adopter toute forme appropriée à la surface à traiter, notamment circulaire, pour une application autour d'un passe-coque, en plaque, pour une application en pleine paroi de la coque, ou en bande, pour une application le long de la ligne de flottaison. For local treatments, the device can adopt any shape suitable for the surface to be treated, in particular circular, for application around a through-hull, in a plate, for an application in the full wall of the hull, or in a strip, for one application along the waterline.

Claims

REVENDICATIONS
1 - Dispositif de séchage de la coque d'un bateau, notamment d'un bateau de plaisance, caractérisé en ce qu'il comprend : - au moins une feuille-support, en matériau extensible et imperméable ;1 - Device for drying the hull of a boat, in particular a pleasure boat, characterized in that it comprises: - at least one support sheet, made of extensible and waterproof material;
- un produit apte à absorber de l'eau et à retenir l'eau absorbée, placé sur l'une des faces de la feuille- support, et - des moyens adhésifs permettant de maintenir la feuille-support et le produit absorbant contre une partie de la coque, en l'appliquant intimement contre celle-ci pendant le temps nécessaire à l'absorption, par ledit produit absorbant, de l'eau contenue dans la paroi de la coque, et assurant, au niveau des bords de la feuille-support, une isolation complète du produit absorbant par rapport au milieu ambiant.- a product capable of absorbing water and retaining absorbed water, placed on one of the faces of the support sheet, and - adhesive means making it possible to hold the support sheet and the absorbent product against a portion of the shell, applying it intimately against it for the time necessary for the absorption, by said absorbent product, of the water contained in the wall of the shell, and ensuring, at the edges of the sheet- support, complete isolation of the absorbent product from the surrounding environment.
2 - Dispositif selon la revendication 1, caractérisé en ce que le matériau constitutif de la feuille-support est un polypropylène extrude, d'un grammage de l'ordre de 100 g/m2.2 - Device according to claim 1, characterized in that the material of the support sheet is an extruded polypropylene, with a grammage of the order of 100 g / m 2 .
3 - Dispositif selon la revendication 1 ou la revendication 2, caractérisé en ce que le produit absorbant est composé d'un alginate associé à un alcool polyvinylique faiblement hydrolyse.3 - Device according to claim 1 or claim 2, characterized in that the absorbent product is composed of an alginate associated with a polyvinyl alcohol weakly hydrolyzed.
4 - Dispositif selon la revendication 3, caractérisé en ce qu'un dérivé cellulosique tel qu'un éthyl-méthyl-hydrocellulose produit sous le nom commercial de "TYLOSE" par la société HOECHST, ou sous les noms commerciaux de "AQUALON" et "NATROSOL" par la société HERCULES est ajouté au produit absorbant.4 - Device according to claim 3, characterized in that a cellulose derivative such as an ethyl-methyl-hydrocellulose produced under the trade name of "TYLOSE" by the company HOECHST, or under the trade names of "AQUALON" and " NATROSOL "by the company HERCULES is added to the absorbent product.
5 - Dispositif selon l'une des revendications 1 à5 - Device according to one of claims 1 to
4, caractérisé en ce que la feuille-support est de couleur sombre, notamment noire. 6 - Dispositif selon l'une des revendications 1 à4, characterized in that the support sheet is dark in color, in particular black. 6 - Device according to one of claims 1 to
5, caractérisé en ce qu'il comprend un produit réactif, tel qu'un sel de Cobalt ou un gel de silice, changeant de couleur en présence d'eau.5, characterized in that it comprises a reactive product, such as a Cobalt salt or silica gel, changing color in the presence of water.
7 - Dispositif selon la revendication 6, caractérisé en ce que le produit réactif est situé dans une partie décollable de la feuille-support, isolée par de l'adhésif du reste de celle-ci, ou en ce que la feuille- support comprend une zone transparente, en regard de la zone dans laquelle ce produit est placé.7 - Device according to claim 6, characterized in that the reactive product is located in a peelable part of the support sheet, isolated by adhesive from the rest of it, or in that the support sheet comprises a transparent area, opposite the area in which this product is placed.
8 - Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que certaines feuilles-support, ou la totalité d'entre elles, comprennent, au moins le long de l'un de leurs bords longitudinaux, une bande adhésive et étanche, de relativement faible épaisseur, permettant de former une protection anti-ruissellement au niveau de leur tranche la plus exposée aux intempéries et au ruissellement.8 - Device according to one of claims 1 to 7, characterized in that some support sheets, or all of them, comprise, at least along one of their longitudinal edges, an adhesive and waterproof tape , of relatively small thickness, making it possible to form an anti-runoff protection at the level of their edge most exposed to the weather and to runoff.
9 - Dispositif selon l'une des revendications 1 à 8, caractérisé en ce qu'il présente une forme circulaire, pour une application autour d'un passe-coque, en plaque, pour une application en pleine paroi de la coque, ou en bande, pour une application le long de la ligne de flottaison. 9 - Device according to one of claims 1 to 8, characterized in that it has a circular shape, for application around a through-hull, plate, for application in full wall of the hull, or tape, for application along the waterline.
PCT/FR1996/001595 1995-10-11 1996-10-11 Device for drying the hull of a vessel such as a yacht WO1997013676A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU73044/96A AU7304496A (en) 1995-10-11 1996-10-11 Device for drying the hull of a vessel such as a yacht

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR95/12119 1995-10-11
FR9512119A FR2739829B1 (en) 1995-10-11 1995-10-11 DEVICE FOR DRYING THE HULL OF A BOAT, ESPECIALLY A PLEASURE BOAT

Publications (1)

Publication Number Publication Date
WO1997013676A1 true WO1997013676A1 (en) 1997-04-17

Family

ID=9483572

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1996/001595 WO1997013676A1 (en) 1995-10-11 1996-10-11 Device for drying the hull of a vessel such as a yacht

Country Status (3)

Country Link
AU (1) AU7304496A (en)
FR (1) FR2739829B1 (en)
WO (1) WO1997013676A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256219A (en) * 1991-05-29 1992-12-02 Minnesota Mining & Mfg Moisture-absorbent self-adhesive strip
WO1994011181A1 (en) * 1992-11-10 1994-05-26 Creto (International) Ltd. A method of treating laminated objects of plastics

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256219A (en) * 1991-05-29 1992-12-02 Minnesota Mining & Mfg Moisture-absorbent self-adhesive strip
WO1994011181A1 (en) * 1992-11-10 1994-05-26 Creto (International) Ltd. A method of treating laminated objects of plastics

Also Published As

Publication number Publication date
AU7304496A (en) 1997-04-30
FR2739829A1 (en) 1997-04-18
FR2739829B1 (en) 1998-01-09

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