FR2618725A1 - Wooden panel provided with an adhesive coating - Google Patents

Wooden panel provided with an adhesive coating Download PDF

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Publication number
FR2618725A1
FR2618725A1 FR8710640A FR8710640A FR2618725A1 FR 2618725 A1 FR2618725 A1 FR 2618725A1 FR 8710640 A FR8710640 A FR 8710640A FR 8710640 A FR8710640 A FR 8710640A FR 2618725 A1 FR2618725 A1 FR 2618725A1
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FR
France
Prior art keywords
panel according
amines
coating
acids
hot
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.)
Granted
Application number
FR8710640A
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French (fr)
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FR2618725B1 (en
Inventor
Andre Madebene
Michel Rey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRL SA
Original Assignee
TRL SA
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Filing date
Publication date
Application filed by TRL SA filed Critical TRL SA
Priority to FR8710640A priority Critical patent/FR2618725B1/en
Publication of FR2618725A1 publication Critical patent/FR2618725A1/en
Application granted granted Critical
Publication of FR2618725B1 publication Critical patent/FR2618725B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/246—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 combinations of materials fully covered by E04C2/16 and E04C2/20
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/05—Forming boards or similar elements the form surface being of plastics

Abstract

Wood-based panel provided with a protective and/or decorative coating made of synthetic material constituted by a thermoplastic (heat-meltable) resin, especially of the polyamide type. Application to concrete formwork and to decorative panels for the building industry.

Description

Panneau de bois muni d'un revêtement adhérent.Wood panel with an adhesive coating.

L'invention est relative aux panneaux à base de bois munis d'un revêtement adhérent en matière synthétique.The invention relates to wood-based panels provided with an adhesive coating of synthetic material.

On appelle ici panneau à base de bois tout panneau formé de bois pour une partie substantielle, notamment les planches de bois massif, les panneaux de contreplaqué, de lamellé, de particules ou de fibres de bois agglomérées.The term wood-based panel is used here to mean any panel formed of wood for a substantial part, in particular solid wood planks, plywood panels, laminated panels, particles or agglomerated wood fibers.

De tels panneaux revêtus sont utilisés par exemple pour le coffrage du béton ou comme éléments décoratifs, par exemple dans le batiment. Les revêtements peuvent avoir un but protecteur, par exemple contre l'abrasion, les agents chimiques ou les intempéries, et/ou un but décoratif.Such coated panels are used for example for concrete formwork or as decorative elements, for example in the building. The coatings may have a protective purpose, for example against abrasion, chemical agents or weathering, and / or a decorative purpose.

On connait de tels panneaux dont le revêtement en matière synthétique est constitué par une peinture ou un vernis.Such panels are known, the synthetic coating of which consists of a paint or a varnish.

L'application d'un tel revêtement suppose un temps de séchage ou de polymérisation prolongé.The application of such a coating requires an extended drying or polymerization time.

Le but de l'invention est de remédier à cet inconvénient.The object of the invention is to remedy this drawback.

Selon l'invention, la matière synthétique constituant le revêtement est une résine thermofusible.According to the invention, the synthetic material constituting the coating is a hot-melt resin.

Les résines thermofusibles sont en elles-mêmes bien connues. Hot melt resins are themselves well known.

Il s'agit de compositions polymères solides à température ordinaire, qui peuvent être mises en oeuvre à l'état fondu et qui acquièrent dès leur refroidissement leurs qualités définitives.These are solid polymer compositions at ordinary temperature, which can be used in the molten state and which acquire their final qualities as soon as they cool.

Pour pouvoir utiliser le panneau selon l'invention, il suffit donc d'y appliquer le revêtement à l'état fondu et d'attendre son refroidissement, qui ne demande qu'un temps très court.To be able to use the panel according to the invention, it suffices therefore to apply the coating therein in the molten state and to wait for it to cool, which requires only a very short time.

Les résines thermofusibles sont couramment utilisées comme colles. Pour la réalisation du revêtement selon l'invention, on peut utiliser les procédés et l'outillage employés pour l'encollage des surfaces par des colles thermofusibles.Hot melt resins are commonly used as adhesives. For the production of the coating according to the invention, it is possible to use the methods and the tools used for gluing the surfaces with hot-melt adhesives.

On peut procéder par exemple au moyen d'une extrudeuse ou d'un autre applicateur muni d'un rouleau encolleur, d'une buse à lèvres ou d'une racle. On peut également déposer la résine sous forme de poudre ou de feuille et la faire fondre ensuite, par exemple en exposant la surface recouverte à un rayonnement infrarouge.One can proceed for example by means of an extruder or another applicator provided with a glue roller, a lip nozzle or a doctor blade. The resin can also be deposited in powder or sheet form and then melt, for example by exposing the covered surface to infrared radiation.

Outre les fonctions habituelles rappelées ci-dessus : protection contre l'usure, contre l'humidité, contre les agents chimiques et atmosphériques, le revêtement selon l'invention peut sans aucune difficulté masquer des défauts de surface tels que des manques de matière, et permettre ainsi l'utilisation de panneaux de qualité médiocre.In addition to the usual functions recalled above: protection against wear, against humidity, against chemical and atmospheric agents, the coating according to the invention can without any difficulty mask surface defects such as lack of material, and thus allowing the use of poor quality panels.

La résine thermofusible constituant le revêtement peut comprendre au moins un polymère choisi parmi les polyamides, le polyéthylène, les polyesters, les polyestéramides, les polyuréthanes et leurs copolymères.The hot-melt resin constituting the coating may comprise at least one polymer chosen from polyamides, polyethylene, polyesters, polyestamides, polyurethanes and their copolymers.

Selon un mode de réalisation préféré, cette résine comprend au moins une composition polyamide obtenue en faisant réagir des acides carboxyliques et des amines. A cet effet on utilise cumulativement - des acides gras polymères dont la teneur en acides gras dimères est supérieure à 19% et de préférence comprise entre 76 et 100% en poids, - des acides gras monomères linéaires ou ramifiés contenant de 2 à 24 atomes de carbone, et - un ou plusieurs acides dicarboxyliques, soit aliphatiques contenant de 6 à 20 atomes de carbone, de préférence entre 6 et 12 atomes de carbone, soit aromatiques contenant un ou plusieurs noyaux benzéniques, ou leurs esters ou anhydrides.According to a preferred embodiment, this resin comprises at least one polyamide composition obtained by reacting carboxylic acids and amines. To this end, cumulative use is made of - polymeric fatty acids whose dimeric fatty acid content is greater than 19% and preferably between 76 and 100% by weight, - linear or branched monomeric fatty acids containing from 2 to 24 atoms of carbon, and - one or more dicarboxylic acids, either aliphatic containing from 6 to 20 carbon atoms, preferably between 6 and 12 carbon atoms, or aromatic containing one or more benzene rings, or their esters or anhydrides.

Les amines utilisées incluent une ou plusieurs amines aliphatiques linéaires ou ramifiées contenant de 2 à 12 atomes de carbone.The amines used include one or more linear or branched aliphatic amines containing from 2 to 12 carbon atoms.

Ces compositions polyamides thermofusibles, connues en ellesmêmes, et notamment utilisées comme colles, présentent une combinaison de propriétés qui les rendent particulièrement convenables pour la réalisation de panneaux revêtus selon l'invention : bonne adhésion sur le bois ou les panneaux à base de bois, bonne souplesse, dureté relativement élevée leur conférant une bonne résistance à l'abrasion, bonne tenue en température.These hot-melt polyamide compositions, known in themselves, and in particular used as adhesives, have a combination of properties which make them particularly suitable for producing coated panels according to the invention: good adhesion to wood or wood-based panels, good flexibility, relatively high hardness giving them good abrasion resistance, good temperature resistance.

Aux acides et amines ci-dessus peuvent être ajoutés, sans nuire aux qualités de la résine, des aminoacides et/ou des lactames dans la limite de 10% en poids environ de la composion polyamide.To the above acids and amines can be added, without harming the qualities of the resin, amino acids and / or lactams within the limit of approximately 10% by weight of the polyamide composition.

Par ailleurs, il peut être utile dans certains cas de faire appel à des amines de types particuliers - des amines aromatiques contenant un ou plusieurs noyaux benzéniques, qui améliorent la tenue à l'humidité, - des amines hétérocycliques qui facilitent l'accrochage sur certains supports, - des amines oxycarbonées qui améliorent la tenue au froid.In addition, it may be useful in certain cases to use amines of particular types - aromatic amines containing one or more benzene rings, which improve the resistance to humidity, - heterocyclic amines which facilitate the attachment to certain supports, - oxycarbonated amines which improve resistance to cold.

Les quantités relatives des différents acides et des différentes amines pourront être définies sans difficulté, en fonction des propriétés souhaitées, par l'homme de métier ayant l'expérience de la mise en oeuvre des résines thermofusibles.The relative amounts of the different acids and of the different amines can be defined without difficulty, depending on the properties desired, by a person skilled in the art having experience in the use of hot-melt resins.

Bien entendu, on pourra incorporer à la résine thermofusible, quelle qu'en soit la nature, des additifs destinés à en améliorer les propriétés, par exemple des additifs facilitant l'étalement de la résine et le mouillage des surfaces par celle-ci, des lubrifiants, tels que des éthylènes distéramides, facilitant l'extrusion, des antioxydants et des stabilisants améliorant la tenue de la résine à l'oxydation et aux attaques radicalaires, des colorants, des charges minérales ou organiques. Of course, it is possible to incorporate into the hot-melt resin, whatever its nature, additives intended to improve the properties thereof, for example additives facilitating the spreading of the resin and the wetting of the surfaces by the latter, lubricants, such as ethylene distamides, facilitating extrusion, antioxidants and stabilizers improving the resistance of the resin to oxidation and to free radical attack, dyes, mineral or organic fillers.

Claims (10)

Revendications.Claims. 1. Panneau à base de bois muni d'un revêtement adhérent en matière synthétique, caractérisé en ce que ladite matière synthétique est une résine thermofusible.1. Wood-based panel provided with an adhesive coating of synthetic material, characterized in that said synthetic material is a hot-melt resin. 2. Panneau selon la revendication 1, caractérisé en ce que le revêtement est un revêtement protecteur. 2. Panel according to claim 1, characterized in that the coating is a protective coating. 3. Panneau selon l'une des revendications 1 et 2, caractérisé en ce que le revêtement est un revêtement décoratif.3. Panel according to one of claims 1 and 2, characterized in that the coating is a decorative coating. 4. Panneau de bois selon l'une des revendications précédentes, caractérisé en ce que la résine thermofusible comprend au moins un polymère choisi parmi les polyamides, le polyéthylène, les polyesters, les polyestéramides, les polyuréthanes et leurs copolymères.4. Wood panel according to one of the preceding claims, characterized in that the hot-melt resin comprises at least one polymer chosen from polyamides, polyethylene, polyesters, polyestamides, polyurethanes and their copolymers. 5. Panneau selon la revendication 4, caractérisé en ce que la résine thermofusible comprend au moins une composition polyamide obtenue en faisant réagir des acides carboxyliques et des amines, les acides comprenant cumulativement des acides gras polymères dont la teneur en acides gras dimères est supérieure à 19% en poids, des acides gras monomères linéaires ou ramifiés contenant de 2 à 24 atomes de carbone et un ou plusieurs acides dicarboxyliques, soit aliphatiques contenant de 6 à 20 atomes de carbone, soit aromatiques contenant un ou plusieurs noyaux benzéniques, ou leurs esters ou anhydrides, et les amines comprenant une ou plusieurs amines aliphatiques linéaires ou ramifiées contenant de 2 à 12 atomes de carbone.5. Panel according to claim 4, characterized in that the hot-melt resin comprises at least one polyamide composition obtained by reacting carboxylic acids and amines, the acids cumulatively comprising polymeric fatty acids whose content of dimeric fatty acids is greater than 19% by weight, linear or branched monomeric fatty acids containing from 2 to 24 carbon atoms and one or more dicarboxylic acids, either aliphatic containing from 6 to 20 carbon atoms, or aromatic containing one or more benzene rings, or their esters or anhydrides, and amines comprising one or more linear or branched aliphatic amines containing from 2 to 12 carbon atoms. 6. Panneau selon la revendication 5, caractérisé en ce que la teneur en acides gras dimères des acides gras polymères est comprise entre 76 et 100%.6. Panel according to claim 5, characterized in that the dimeric fatty acid content of the polymeric fatty acids is between 76 and 100%. 7. Panneau selon l'une des revendications 5 et 6, caractérisé en ce que les acides dicarboxyliques aliphatiques contiennent de 6 à 12 atomes de carbone.7. Panel according to one of claims 5 and 6, characterized in that the aliphatic dicarboxylic acids contain from 6 to 12 carbon atoms. 8. Panneau selon l'une des revendications 5 à 7, caractérisé en ce que des aminoacides ou des lactames participent en outre à la formation de la composition polyamide dans la limite de 10% en poids environ de cette dernière.8. Panel according to one of claims 5 to 7, characterized in that amino acids or lactams also participate in the formation of the polyamide composition within the limit of about 10% by weight thereof. 9. Panneau selon l'une des revendications 5 à 8, caractérisé en ce que participent en outre à la formation de la composition polyamide une ou plusieurs amines choisies parmi les amines aromatiques contenant un ou plusieurs noyaux benzéniques, les amines hétérocycliques et les amines oxycarbonées.9. Panel according to one of claims 5 to 8, characterized in that also participate in the formation of the polyamide composition one or more amines chosen from aromatic amines containing one or more benzene rings, heterocyclic amines and oxycarbonated amines . 10. Panneau selon l'une des revendications précédentes, caractérisé en ce que des additifs sont incorporés à la résine thermofusible pour en améliorer les propriétés. 10. Panel according to one of the preceding claims, characterized in that additives are incorporated into the hot-melt resin to improve its properties.
FR8710640A 1987-07-27 1987-07-27 WOOD PANEL PROVIDED WITH AN ADHERENT COATING Expired - Fee Related FR2618725B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8710640A FR2618725B1 (en) 1987-07-27 1987-07-27 WOOD PANEL PROVIDED WITH AN ADHERENT COATING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8710640A FR2618725B1 (en) 1987-07-27 1987-07-27 WOOD PANEL PROVIDED WITH AN ADHERENT COATING

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FR2618725A1 true FR2618725A1 (en) 1989-02-03
FR2618725B1 FR2618725B1 (en) 1990-06-08

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FR8710640A Expired - Fee Related FR2618725B1 (en) 1987-07-27 1987-07-27 WOOD PANEL PROVIDED WITH AN ADHERENT COATING

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997033749A1 (en) * 1996-03-11 1997-09-18 Eastman Chemical Company Composite structure having a porous surface and a multilayer film laminated thereto
WO2018127697A1 (en) * 2017-01-09 2018-07-12 Trade Fabrication Systems Ltd Film application method and construction panel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH486552A (en) * 1968-05-22 1970-02-28 Basf Ag Process for gluing or coating materials
AU509450B2 (en) * 1976-06-09 1980-05-15 Toppan Printing Co. Ltd. Manufacturing decorative material
US4324711A (en) * 1976-06-29 1982-04-13 Atom Chemical Paint Co., Ltd. Melt-adhesive traffic paint composition
DE3424131A1 (en) * 1984-06-30 1986-01-09 Reinhard-Heinrich 4830 Gütersloh Flötotto Process for coating mouldings and sheet-like chipboard material with a covering layer of plastic and textile material
EP0225434A2 (en) * 1985-10-07 1987-06-16 Henkel Kommanditgesellschaft auf Aktien Hot melt adhesive mixture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH486552A (en) * 1968-05-22 1970-02-28 Basf Ag Process for gluing or coating materials
AU509450B2 (en) * 1976-06-09 1980-05-15 Toppan Printing Co. Ltd. Manufacturing decorative material
US4324711A (en) * 1976-06-29 1982-04-13 Atom Chemical Paint Co., Ltd. Melt-adhesive traffic paint composition
DE3424131A1 (en) * 1984-06-30 1986-01-09 Reinhard-Heinrich 4830 Gütersloh Flötotto Process for coating mouldings and sheet-like chipboard material with a covering layer of plastic and textile material
EP0225434A2 (en) * 1985-10-07 1987-06-16 Henkel Kommanditgesellschaft auf Aktien Hot melt adhesive mixture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997033749A1 (en) * 1996-03-11 1997-09-18 Eastman Chemical Company Composite structure having a porous surface and a multilayer film laminated thereto
WO2018127697A1 (en) * 2017-01-09 2018-07-12 Trade Fabrication Systems Ltd Film application method and construction panel
US11536035B2 (en) 2017-01-09 2022-12-27 Trade Fabrication Systems Ltd. Film application method and construction panel

Also Published As

Publication number Publication date
FR2618725B1 (en) 1990-06-08

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