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FR2805549A1 - PLASTIC SOIL COATING AND PROCESS FOR OBTAINING THE SAME - Google Patents

PLASTIC SOIL COATING AND PROCESS FOR OBTAINING THE SAME Download PDF

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Publication number
FR2805549A1
FR2805549A1 FR0002538A FR0002538A FR2805549A1 FR 2805549 A1 FR2805549 A1 FR 2805549A1 FR 0002538 A FR0002538 A FR 0002538A FR 0002538 A FR0002538 A FR 0002538A FR 2805549 A1 FR2805549 A1 FR 2805549A1
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Prior art keywords
layer
coating
sep
base
complex
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FR0002538A
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French (fr)
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FR2805549B1 (en
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TARAFLEX
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TARAFLEX
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Priority to FR0002538A priority Critical patent/FR2805549B1/en
Priority to DE60100943T priority patent/DE60100943T2/en
Priority to EP01909902A priority patent/EP1266066B1/en
Priority to PCT/FR2001/000557 priority patent/WO2001064996A1/en
Priority to AU2001237497A priority patent/AU2001237497B2/en
Priority to AT01909902T priority patent/ATE251687T1/en
Publication of FR2805549A1 publication Critical patent/FR2805549A1/en
Application granted granted Critical
Publication of FR2805549B1 publication Critical patent/FR2805549B1/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • E04F15/10Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
    • D06N3/08Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products with a finishing layer consisting of polyacrylates, polyamides or polyurethanes or polyester
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06NWALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N7/00Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • D06N7/0005Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface
    • D06N7/0039Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface characterised by the physical or chemical aspects of the layers
    • D06N7/0057Layers obtained by sintering or glueing the granules together

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Floor Finish (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The invention concerns a method for producing a floor covering which consists in: in a first operational phase, classically producing a base structure (1b) with plasiticized PVC, by pressing, calendering, extrusion or coating, optionally reinforced with a textile core and associated with an additional backing (1a); then in a second operational phase, producing a surface covering consisting of a double-layer complex comprising a thermoplastic layer coated with a thermosetting polymer film. The invention is characterised in that said double-layer complex is formed, either continuously and in line with the production of the base structure, or on a transfer support enabling complexing in a subsequent phase by: depositing on the upper surface of the base complex, or on a transfer support, a transparent or coloured layer (2) of PVC plastisol which is pre-gelled by heat treatment; continuously coating the pre-gelled plastisol layer (2) with thermosetting powder (7) and heat treatment transforming the powder into a continuous liquid film (9); passing the resulting complex in a warm air furnace (11), bringing about gelling and crosslinking of the two constituents (2, 9) of the surface layer.

Description

REVETEMENT <B><U>DE SOL EN</U></B> MATIERE <B><U>PLASTIQUE ET</U></B> PROCEDE <U>POUR<B>SON OBTENTION.</B></U>  <B> <U> SOIL COATING </ U> </ U> <B> <U> PLASTIC MATERIAL AND </ U> <U> PROCESS <U> TO OBTAINING IT. </ B> </ U>

<U>Domaine Technique</U> La présente invention a trait<B>à</B> un nouveau type de revêtement de en matière plastique ainsi qu'à un procédé perfectionné pour son obtention. TECHNICAL FIELD The present invention relates to a new type of plastic coating and to an improved process for producing it.

Elle a trait plus particulièrement<B>à</B> un nouveau type de revêtement<B>sol</B> pressé, calandré, extrudé, enduit ou imprimé, présentant des caractéristiques de surface améliorées. More specifically, it relates to a new type of pressed, calendered, extruded, coated or printed flooring having improved surface characteristics.

<U>Techniques antérieures</U> <B>Il</B> a été propose depuis fort longtemps de réaliser des revêtements de sol souples, en matière plastique. <U> Prior techniques </ U> <B> It </ B> has been proposed for a very long time to realize flexible flooring, plastic.

D'une manière 2énérale, de tels revêtements sont constitués d'une structure de base thermoplastique et notamment en PVC plastifié, qui peut éventuellement être renforcée par structure textile noyée dans la masse de la matière. In a general manner, such coatings consist of a thermoplastic base structure and in particular plasticized PVC, which may optionally be reinforced by textile structure embedded in the mass of the material.

Par ailleurs pour améliorer le confort ou conférer des caractéristiques spécifiques au revêtement, celui-ci peut être associé<B>à</B> une sous-couche, par exemple une sous-couche en mousse. In addition, to improve the comfort or to confer specific characteristics to the coating, it may be associated with an underlayer, for example a foam underlayer.

De plus, la face apparente est recouverte d'une couche de finition conférant<B>à</B> l'ensemble des propriétés spécifiques telles que résistance aux UV, tenue<B>à</B> l'encrassement,<B>à</B> la rayure, au trafic,<B>à</B> l'abrasion...<B>.</B> In addition, the apparent face is covered with a topcoat conferring <B> to </ B> all specific properties such as UV resistance, holding <B> to </ B> fouling, <B > scratch, traffic, abrasion ... <B>. </ B>

Une telle couche de surface peut être réalisée soit en continu avec la fabrication de la structure de base plastifiée, soit lors d'une phase séparée sur un support transfert. Such a surface layer can be made either continuously with the manufacture of the plasticized base structure, or during a separate phase on a transfer medium.

<U>Exposé de l'invention</U> Or, on a trouvé, et c'est ce qui fait l'objet de la présente invention, un perfectionnement apporté<B>à</B> de tels revêtements, qui permet d'améliorer très sensiblement les propriétés surfaciques de tenue<B>à</B> l'encrassement,<B>à</B> la rayure, au trafic,<B>à</B> l'abrasion, aux traces noires de chaussures (scuffing). Un tel revêtement présente par ailleurs une résistance<B>à</B> des taches spécifiques qui peuvent se produire sur le lieu d'utilisation, par exemple dans le domaine hospitalier (taches d'iode alcoolique, éosine alcoolique<B>... ).</B> <U> Exposure of the invention </ U> However, it has been found, and this is the subject of the present invention, an improvement brought <B> to </ B> such coatings, which allows to improve very significantly the surface properties of behavior <B> to </ B> fouling, <B> to </ B> the scratch, the traffic, <B> to </ B> the abrasion, to the traces black shoes (scuffing). Such a coating also has a resistance <B> to </ B> specific spots that may occur at the place of use, for example in the hospital field (alcoholic iodine spots, alcoholic eosin <B> .. .). </ B>

Par ailleurs, le revêtement conforme<B>à</B> l'invention permet en outre de diminuer, voire de supprimer les émissions de composés organiques volatiles par effet barrière de la couche supérieure de surface. Furthermore, the coating conforming to the invention also makes it possible to reduce or even eliminate emissions of volatile organic compounds by the barrier effect of the upper surface layer.

une manière générale, le revêtement conforme<B>à</B> l'invention comporte une structure de base thermoplastique, en PVC notamment, pressée, calandrée, extradée, enduite ou imprimée, éventuellement renforcée par une armature textile et pouvant comporter sur sa face envers une sous-couche telle qu'une couche de mousse et dont la face apparente est constituée d'une couche de surface associée<B>à</B> ladite structure de base. in general, the coating conforming to the invention comprises a thermoplastic base structure, in particular PVC, pressed, calendered, extruded, coated or printed, optionally reinforced by a textile reinforcement and may include on its against a sub-layer such as a layer of foam and whose apparent face consists of a surface layer associated with said basic structure.

Le revêtement conforme<B>à</B> l'invention se caractérise en ce que la couche de surface est constituée par un complexe bicouches, comportant une couche thermoplastique, de préférence<B>à</B> base de PVC plastifié, revêtue d'un<B>à</B> base d'un polymère thermodurcissable, polyester plus particulièrement. The coating according to the invention is characterized in that the surface layer is constituted by a bilayer complex, comprising a thermoplastic layer, preferably <B> based on plasticized PVC, coated with a <B> to </ B> base of a thermosetting polymer, especially polyester.

Conformément<B>à</B> l'invention, la couche thermoplastique de surface a base de PVC est obtenue<B>à</B> partir d'une composition de PVC plastisol (résine PVC, plastifiant, et additifs stabilisants et de rhéologie conventionnels), cette couche de surface étant colorée ou transparente et ayant une épaisseur comprise entre<B>0,1</B> et 2 mm et préférentiellement<B>0,3 à 0,8</B> mm. Ce plastisol peut également être réalisé<B>à</B> l'aide de résine acrylique dans un plastifiant. According to the invention, the PVC-based thermoplastic surface layer is obtained from a plastisol PVC composition (PVC resin, plasticizer, and stabilizing additives and conventional rheology), this surface layer being colored or transparent and having a thickness between <B> 0.1 </ B> and 2 mm and preferably <B> 0.3 to 0.8 </ B> mm. This plastisol can also be made by using acrylic resin in a plasticizer.

La couche externe associée<B>à</B> cette couche<B>à</B> base de PVC est, quant<B>à</B> elle, réalisée<B>à</B> partir d'une composition de poudre thermodurcissable présentant des caractéristiques de réticulation (durcissement) de courte durée, comprise entre une et sept minutes au maximum<B>à</B> 2<B>1</B> O'C. The outer layer associated with this <B> to </ B> base layer of PVC is, when <B> to </ B> it, made <B> to </ B> from a thermosetting powder composition having short-term cross-linking (curing) characteristics of from one to seven minutes at most <B> to </ B> 1 <B> 1 </ B> O'C.

formulation de cette poudre est telle qu'elle permette l'adhésion sur le polymère plastifié (PVQ sans altérer les qualités de souplesse, le durcisseur étant également non agressif vis-à-vis du PVC. Une telle poudre peut être obtenue<B>à</B> partir d'une composition comprenant<B>:</B> # -une résine polyester hydroxylée, une résine polyester carboxylée., une résine polyuréthanne, une résine hybride polyester/epoxy <B>... ;</B> # un réticulant de typ e glycidylester, un réticulant de type hydroxyalkylamide, un réticulant de type isocyanate bloqué ou dimérisée. Après réalisation, le film de surface en polymère thermodurcissable, de préférence<B>à</B> base de copolyester, a une épaisseur comprise entre<B>15</B> et #tm et de préférence entre<B>30</B> et<B>80</B> #im. formulation of this powder is such that it allows adhesion to the plasticized polymer (PVQ without altering the qualities of flexibility, the hardener is also non-aggressive vis-à-vis PVC.This powder can be obtained <B> to From a composition comprising: a hydroxylated polyester resin, a carboxylated polyester resin, a polyurethane resin, a hybrid polyester / epoxy resin, and the like; B> # a glycidyl ester crosslinking agent, a crosslinking agent of the hydroxyalkylamide type, a blocked or dimerized isocyanate type crosslinking agent After production, the thermosetting polymer surface film, preferably a copolyester based film, has a thickness between <B> 15 </ B> and #tm and preferably between <B> 30 </ B> and <B> 80 </ B> #im.

L'invention concerne également un procédé pour la réalisation tel revêtement. The invention also relates to a method for producing such a coating.

D'une manière générale, conformément<B>à</B> l'invention, lors d'une première phase opératoire, on réalise de manière conventionnelle une structure de base en PVC plastifié, par pressage, calandrage, extrusion ou enduction, renforcée non par armature textile (non tissé cellulosique ou de verre, grille tissée ou non tissée..), associée ou non<B>à</B> une sous-couche additionnelle,<B>à</B> base de mousse par exemple. In a general manner, according to the invention, during a first phase of operation, a base structure of plasticized PVC is produced in a conventional manner, by pressing, calendering, extrusion or coating, reinforced not by textile reinforcement (non-woven cellulose or glass, woven or non-woven mesh, etc.), whether or not associated with an additional sub-layer, foam base with example.

Conformément<B>à</B> l'invention, pour réaliser le revêtement de surface, on réalise soit en continu avec la réalisation de la structure de base soit sur un support transfert, un complexe bicouche par<B>:</B> dépôt sur la face supérieure du complexe de base, ou sur un support transfert d'une couche de plastisol de PVC transparent ou coloré l'on prégélifie par traitement thermique<B>;</B> en continu, recouvrement de la couche de plastisol pré-gélifiée d'une couche de poudre thermodurcissable, un second traitement thermique de l'ensemble permettant la formation d'un film continu et la réticulation de la poudre<B>;</B> passage du revêtement ainsi formé dans un four<B>à</B> air chaud, entramant la gélification/réticulation <B>de</B> la poudre de surface, l'ensemble étant ensuite éventuellement grainé et réceptionné. <U>Description sommaire des dessins</U> L'invention et les avantages qu'elle apporte sera cependant mieux comprise grâce<B>'</B> la description qui suit et qui est illustrée par les schémas annexés dans lesquels<B>:</B> <B>-</B> la figure<B>1</B> est une vue schématique d'une ligne de production d'un revêtement de sol conforme<B>à</B> l'invention<B>;</B> <B>-</B> la figure 2 est une vue schématique en perspective illustrant la structure générale d'un tel revêtement de sol. According to the invention, in order to carry out the surface coating, a bilayer complex is produced either continuously with the production of the basic structure or on a transfer medium by: </ B> depositing on the upper face of the base complex, or on a transfer medium of a layer of plastisol of transparent or colored PVC is pregelelated by heat treatment <B>; </ B> continuously, recovery of the layer of pre-gelled plastisol of a layer of thermosetting powder, a second heat treatment of the assembly allowing the formation of a continuous film and the crosslinking of the powder <B>; </ B> passage of the coating thus formed in a furnace <B> to </ B> hot air, entraining the gelation / crosslinking <B> of </ B> the surface powder, the assembly then being optionally grained and received. <U> Brief description of the drawings </ U> The invention and the advantages it brings will however be better understood by <B> '</ B> the description which follows and which is illustrated by the appended diagrams in which <B> >: </ B> <B> - </ B> Figure <B> 1 </ B> is a schematic view of a production line of a <B> compliant floor covering </ B> FIG. 2 is a diagrammatic perspective view illustrating the general structure of such a floor covering. DESCRIPTION OF THE PREFERRED EMBODIMENT

<U>Manière de réaliser l'invention</U> Dans la suite de la description, l'invention, sera décrite pour la réalisation d'un revêtement de surface en continu avec la production de la structure de base du revêtement de sol, étant entendu que cette couche de surface pourrait être réalisée lors d'une phase séparée sur un support transfert pour être associée<B>à</B> couche de base lors de la formation de cette dernière. In the following description, the invention will be described for the realization of a continuous surface coating with the production of the basic structure of the flooring, it being understood that this surface layer could be made during a separate phase on a transfer medium to be associated with the base layer during the formation of the latter.

se référant aux figures annexées, dans une première phase opératoire, on réalise, de manière conventionnelle, par pressage, calandrage, extrusion ou enduction, une structure de base<B>(1)</B> en PVC. Referring to the accompanying figures, in a first phase of operation, a base structure <B> (1) </ B> of PVC is conventionally made by pressing, calendering, extruding or coating.

Une telle structure de base<B>(1)</B> peut être renforcée par une couche en matière textile, et peut comporter sur sa face envers, une sous-couche telle couche de mousse (la). Such a basic structure <B> (1) </ B> may be reinforced by a layer of textile material, and may comprise on its underside, an underlayer such foam layer (la).

Conformément<B>à</B> l'invention, le revêtement de surface du complexe de base <B>1 .</B> According to the invention, the surface coating of the base complex <B> 1. </ B>

<B>(1)</B> ainsi formé, est réalisé en déposant sur la face supérieure de ce support<B>(1),</B> une couche régulière (2) d'un plastisol <B>à</B> base d'une matière thermoplastique, PVC notamment, mais qui peut être aussi un plastisol acrylique. <B> (1) </ B> thus formed, is produced by depositing on the upper face of this support <B> (1), </ B> a regular layer (2) of a plastisol <B> to < Base of a thermoplastic material, PVC in particular, but which can also be an acrylic plastisol.

Ce dépôt de plastisol est réalisé de manière conventionnelle faisant passer le support<B>(1)</B> sur un rouleau<B>(3)</B> associé<B>à</B> une racle (4). This plastisol deposit is conventionally made by passing the support <B> (1) </ B> on a roll <B> (3) </ B> associated <B> with a squeegee (4) .

La couche de plastisol (2) a une épaisseur comprise entre 0,2<B>0,8</B> mm. En continu, on soumet l'ensemble<B>à</B> un traitement thermique de pré- gélification portant la matière<B>à</B> une température comprise entre 120 et<B>130'C</B> pendant<B>30 à 60</B> secondes par passage dans un four<B>à</B> air chaud ou infrarouge<B>(5).</B> The plastisol layer (2) has a thickness of between 0.2 <B> 0.8 </ B> mm. Continuously, the <B> assembly is subjected to a pre-gelling heat treatment carrying the material <B> at </ B> a temperature of between 120 and <B> 130 ° C. </ B> during <B> 30 to 60 </ B> seconds by passing through an oven <B> to </ B> hot air or infrared <B> (5). </ B>

On dépose ensuite sur cette couche de plastisol (2) une composition de poudre thermodurcissable<B>(7).</B> This layer of plastisol (2) is then deposited with a thermosetting powder composition <B> (7). </ B>

Ce dépôt est réalisé par saupoudrage électrostatique au moyen d'un système de poudrage qui peut être une trémie<B>(6)</B> associée<B>à</B> un ensemble de charge électrostatique ou un système de pistoletage électrostatique adapté poudrage<B>à</B> plat. Ce dépôt est réalisé<B>à</B> raison de 20<B>à</B> 200 g/M2 <B>,</B> de préférence entre 40 et<B>100</B> g/M#- Après traitement thermique au moyen d'une rampe<B>à</B> infrarouge la poudre est transformée en un film continu liquide<B>(9)</B> ayant une épaisseur comprise entre <B>15</B> lim et<B>150</B> gm et de préférence entre<B>30</B> et<B>80</B> #tm. This deposit is made by electrostatic dusting by means of a dusting system which can be a hopper <B> (6) </ B> associated <B> to </ B> a set of electrostatic charge or an electrostatic gun system adapted powder coating <B> to </ B> flat. This deposit is made <B> at </ B> from 20 <B> to </ B> 200 g / M2 <B>, </ B> preferably from 40 to <B> 100 </ B>. M # - After heat treatment by means of a <B> to </ B> infrared ramp the powder is transformed into a continuous liquid film <B> (9) </ B> with a thickness between <B> 15 < / B> lim and <B> 150 </ B> gm and preferably between <B> 30 </ B> and <B> 80 </ B> #tm.

Le complexe ainsi formé est ensuite soumis<B>à</B> un traitement thermique<B>à</B> l'intérieur d'un four<B>à</B> air chaud<B>(11),</B> entraînant la gélification/réticulation finale couches de surface<B>(2,9).</B> The complex thus formed is then subjected <B> to </ B> a heat treatment <B> to </ B> inside a furnace <B> to </ B> hot air <B> (11), </ B> leading to gelation / final crosslinking <B> surface layers (2.9). </ B>

La température<B>à</B> l'intérieur du four est réglée entre<B>200'C</B> et 2 la durée traitement étant comprise entre une<B>à</B> sept minutes. The temperature <B> at </ B> inside the oven is set between <B> 200'C </ B> and 2 the treatment time is between one <B> to </ B> seven minutes.

Le complexe ainsi formé est ensuite réceptionné, par exemple sous la forme enroulement. The complex thus formed is then received, for example in the form of winding.

La figure 2 montre en coupe, de manière schématique, la structure générale tel revêtement de sol, comportant donc un support de base<B>(1)</B> recouvert d'une structure transparente bicouches constituée, d'une part, d'une couche then-noplastique (2), de préférence en PVC plastifié, associée<B>à</B> un<B>(9) à</B> base d'une matière thermodurcissable, polyester notamment. FIG. 2 shows in section, schematically, the general structure such as a floor covering, thus comprising a base support <B> (1) </ B> covered with a transparent bilayer structure constituted, on the one hand, by a then-noplastic layer (2), preferably plasticized PVC, associated <B> to </ B> a <B> (9) to </ B> base of a thermosetting material, polyester in particular.

<U>Exemple</U> Au moyen d'une installation telle que décrite précédemment, on réalise le revêtement de surface d'une structure de base<B>(1)</B> préalablement réalisée, comprenant une sous-couche en mousse (la) associée<B>à</B> l'envers d'une feuille<B>(1b)</B> en PVC. <U> Example </ U> By means of an installation as described above, the surface coating of a basic structure <B> (1) </ B> previously produced, comprising an underlayer Foam (the) associated <B> to </ B> the back of a sheet <B> (1b) </ B> in PVC.

Un tel support<B>(1)</B> a une épaisseur<B>15</B> mm. Such a support <B> (1) </ B> has a thickness <B> 15 </ B> mm.

<B>A</B> la surface de ce support<B>(1),</B> dépose<B>à</B> la racle (4), -une couche de <B>625</B> g/m' d'un plastisol présentant une viscosité de<B>10</B> Pa.s <B>(10 000</B> cPs) pour un cisaillement de<B>100</B> s-1<B>à</B> l'aide de l'équipement Rheomat ayant la composition suivante<B>:</B> <B>-</B> chlorure de polyvinyle<B>(100</B> parties) <B>-</B> plastifiant de type phtalate de dioctyle (DOP) <B>à</B> 40 pcr <B>-</B> stabilisant de type butylétain soufré<B>à</B> 2 pcr <B>-</B> diluant. <B> A </ B> the surface of this bracket <B> (1), <B> to </ B> the squeegee (4), -a layer of <B> 625 </ B > g / m 'of a plastisol having a viscosity of <B> 10 </ B> Pa.s <B> (10,000 </ B> cPs) for a shear of <B> 100 </ B> s- 1 <B> to </ B> using the Rheomat equipment with the following composition: <B>: <B> - </ B> polyvinyl chloride <B> (100 </ B> parts Dioctyl Phthalate (DOP) <B> to </ B> plasticizer <br> - </ br> butyltin type stabilizer <B> to </ B> 2 pcr <b> - </ b> diluent.

On forme ainsi<B>à</B> la surface du support<B>(1)</B> une couche ayant une épaisseur de <B>0,5</B> mm. Thus, <B> at </ B> the surface of the support <B> (1) </ B> is formed a layer having a thickness of <B> 0.5 </ B> mm.

L'ensemble est alors soumis<B>à</B> un traitement thermique par passage sous une rampe<B>à</B> infrarouge<B>(5)</B> portant la matière a une température de<B>11</B> O'C. En aval de la rampe<B>à</B> inftarouge, on dépose,<B>à</B> raison de<B>60</B> g/M2# une poudre thermodurcissable constituée par une composition<B>à</B> base copolyester comprenant<B>:</B> # résine de type polyester hydroxylé # durcisseur de type isocyanate diménisée. The assembly is then subjected <B> to </ B> a thermal treatment by passing under a ramp <B> to </ B> infrared <B> (5) </ B> carrying the material at a temperature of <B > 11 </ B> O'C. Downstream from the <B> to </ B> infra-red ramp, <B> to </ B> is deposited because of <B> 60 </ B> g / M2 # a thermosetting powder consisting of a composition <B> copolyester base comprising <B>: # resin of hydroxylated polyester type # hardeners of dimethylated isocyanate type.

Le complexe est soumis<B>à</B> un second traitement thermique au moyen d'une rampe<B>à</B> infrarouge<B>(8),</B> traitement réalisé<B>à</B> une température de<B>200'C</B> pendant une durée de<B>30</B> secondes, permettant d'obtenir un film<B>(9)</B> ayant une épaisseur de l'ordre de<B>50</B> #tm. The complex is subjected <B> to </ B> a second heat treatment by means of a <B> to </ B> infrared <B> (8), </ B> treatment done <B> to </ B> a temperature of <B> 200'C </ B> for a duration of <B> 30 </ B> seconds, to obtain a film <B> (9) </ B> having a thickness of l order of <B> 50 </ B> #tm.

Le revêtement ainsi formé passe ensuite dans un four<B>à</B> air chaud<B>(l 1)</B> porté<B>à</B> une température de<B>200'C,</B> la durée de traitement étant de<B>3</B> minutes. The coating thus formed then goes into a furnace <B> to </ B> hot air <B> (l 1) </ B> heated <B> to </ B> a temperature of <B> 200'C, < / B> the processing time being <B> 3 </ B> minutes.

En sortie de l'installation, on obtient un revêtement de sol tel que illustré<B>à</B> la figure 2, ayant une épaisseur totale de mm. Un tel revêtement de sol présente rapport aux revêtements antérieurs, des propriétés de surface améliorées, notamment en ce qui concerne la tenue<B>à</B> l'encrassement,<B>à</B> la rayure,<B>à</B> l'abrasion, trafic, aux UV. At the outlet of the installation, a floor covering is obtained as illustrated in FIG. 2, having a total thickness of mm. Such a floor covering has, compared to previous coatings, improved surface properties, in particular as regards the behavior <B> to </ B> fouling, <B> to </ B> the scratch, <B> to abrasion, traffic, UV.

Les spécifications concernant revêtements de sol résilients de type revêtements de sol homogènes ou hétérogènes<B>à</B> base de polychlorure de vinyle sont prescrites dans la nonne européenne<B>NF EN</B> 649 de décembre<B>1996.</B> The specifications for resilient floor coverings of homogeneous or heterogeneous <B> to </ B> polyvinyl chloride base types are prescribed in the European standard <B> NF EN </ B> 649 of December <B> 1996 . </ B>

La référence normative<B>EN</B> 425 relative<B>à</B> l'action d'une chaise<B>à</B> roulettes permet de mettre en évidence une 'lioration des propriétés du produit traité en surface conformément<B>à</B> l'invention par rapport<B>à</B> un produit non traité, c'est-à-dire un produit dont la couche de surface est uniquement<B>à</B> base de matière thermoplastique et n'est pas revêtue d'un film<B>à</B> base d'un polymère thermodurcissable. The normative reference <B> EN </ B> 425 relative <B> to </ B> the action of a chair <B> to </ B> casters makes it possible to highlight a'iloration of the properties of the treated product in surface according to <B> to </ B> the invention in relation to <B> to </ B> an untreated product, that is to say a product whose surface layer is only <B> to < Thermoplastic material base and is not coated with a <B> to </ B> film based on a thermosetting polymer.

De plus, un test de simulation trafic de type commercial élevé (pose TX- 16/99 pendant<B>5</B> mois) montre l'excellent comportement du produit possédant une couche de surface thermodurcie. In addition, a high commercial traffic simulation test (TX-16/99 for <B> 5 </ B> months) shows the excellent behavior of the product having a thermoset surface layer.

La détermination de la résistance<B>à</B> l'encrassement est déterminée en réalisant une analyse de colorimétrie différentielle (Méthode TX-DCOOI) qui met en évidence la perte de clarté<B>(</B> AL*) ainsi que le jaunissement du produit<B>(</B> Ab*) <B>:</B>

Figure img00070011
The determination of the resistance <B> to </ B> fouling is determined by performing a differential colorimetric analysis (TX-DCOOI method) which highlights the loss of clarity <B>(</B> AL *) as well as yellowing of the product <B>(</B> Ab *) <B>: </ B>
Figure img00070011

Revêtement <SEP> de <SEP> sol
<tb> <B>AL* <SEP> Ab*</B>
<tb> Non <SEP> traité <SEP> <B>-6,7</B> <SEP> 4,72
<tb> Traité <SEP> en <SEP> surface <SEP> <B>-1,6 <SEP> 1,16</B>
<tb> <B><U>1 <SEP> 1 <SEP> - <SEP> 1</U> <SEP> 1</B> Le produit traité en surface conforme<B>à</B> l'invention conserve sa clarté et jaunit beaucoup moins que les revêtements conventionnels.
<SEP> coating of <SEP> soil
<tb><B> AL * <SEP> Ab * </ B>
<tb> No <SEP> treated <SEP><B> -6.7 </ B><SEP> 4.72
<tb> Treated <SEP> in <SEP> Surface <SEP><B> -1.6 <SEP> 1.16 </ B>
<tb><B><U> 1 <SEP> 1 <SEP> - <SEP> 1 </ U><SEP> 1 </ B> Surface treated product <B> to </ B> The invention retains its clarity and yellows much less than conventional coatings.

Par ailleurs, le revêtement de conforme<B>à</B> l'invention est peu sensible<B>à</B> l'action des taches comme le démontrent les résultats obtenus, réalisés selon la norme<B>NF EN</B> 423, selon laquelle un indice zéro correspond<B>à</B> un produit insensible aux taches alors qu'un indice 4 correspond<B>à</B> un produit très sensible. Le résultat ces tests comparatifs sont regroupés dans tableau ci-dessous.

Figure img00080001
Furthermore, the coating of <B> to </ B> the invention is insensitive <B> to </ B> the action of the stains as demonstrated by the results obtained, made according to the standard <B> NF EN </ B> 423, according to which a zero index corresponds to a stain-resistant product whereas an index 4 corresponds to a very sensitive product. The result these comparative tests are grouped in table below.
Figure img00080001

Echantillon <SEP> selon <SEP> Echantillon
<tb> l'invention <SEP> conventionnel
<tb> Alcool <SEP> Iodé <SEP> <B>0</B> <SEP> 2
<tb> Eosine <SEP> Alcoolique <SEP> <B>0 <SEP> 1</B>
<tb> Bleu <SEP> de <SEP> Méthyl' <SEP> <B>0 <SEP> 1</B>
<tb> MEK <SEP> <B>1</B> <SEP> 4 Enfin, le produit conforme<B>à</B> l'invention présente une<B>'</B> bonne résistance aux traces de chaussure (Scuffing), comme le démontrent les résultats d'essais comparatifs regroupés dans le tableau ci-dessous et réalisés selon la méthode TX- S012.

Figure img00080005
Sample <SEP> according to <SEP> Sample
<tb> the conventional <SEP> invention
<tb> Alcohol <SEP> Iodine <SEP><B> 0 </ B><SEP> 2
<tb> Eosine <SEP> Alcoholic <SEP><B> 0 <SEP> 1 </ B>
<tb> Blue <SEP> of <SEP> Methyl '<SEP><B> 0 <SEP> 1 </ B>
<tb> MEK <SEP><B> 1 </ B><SEP> 4 Finally, the product conforming to the <B></B> invention has a <B>'</B> good resistance to traces of shoe (Scuffing), as demonstrated by the results of comparative tests grouped in the table below and carried out according to the TX-S012 method.
Figure img00080005

Trace <SEP> de <SEP> semelle <SEP> PVC <SEP> 'l'race <SEP> de <SEP> semelle <SEP> TR
<tb> Produit <SEP> conventionnel <SEP> très <SEP> marqué <SEP> marqué
<tb> Produit <SEP> selon <SEP> l'invention <SEP> aucune <SEP> trace <SEP> aucune <SEP> trace
Trace <SEP> of <SEP> insole <SEP> PVC <SEP>'breed<SEP> of <SEP> insole <SEP> TR
<tb> Product <SEP> conventional <SEP> very <SEP> marked <SEP> marked
<tb> Product <SEP> according to <SEP> the invention <SEP> no <SEP> trace <SEP> no <SEP> trace

Claims (1)

<U>REVENDICATIONS</U> <B>I/</B> Revêtement de sol comportant une structure de base en matière thermoplastique, PVC plastifiée notamment, pressée, calandrée, extrudée, enduite ou imprimée, éventuellement renforcée par une armature textile et pouvant comporter sur sa face envers une sous-couche (la), et dont la face apparente est constituée par une couche de surface associée ladite structure de base, caractérisé en ce que la couche de surface est constituée par un complexe bicouche comportant une couche thermoplastique revêtue d'un film<B>(9) à</B> base d'un polymère thermodurcissable. 2/ Revêtement selon la revendication<B>1,</B> caractérisé en ce que la couche thermoplastique de surface (2) est<B>à</B> base de plastifié, est colorée ou transparente et a une épaisseur comprise entre 0,2 et<B>0,8</B> mm, et le film de surface en polymère thermodurcissable est<B>à</B> base de polyester et a une épaisseur comprise entre<B>15</B> et<B>150</B> gin et de préférence entre<B>30</B> et<B>80</B> #Lm. <B>Y</B> Procédé pour la réalisation d'un revêtement de sol comportant une structure de base<B>(1)</B> en PVC plastifié, obtenue par pressage, calandrage, extrusion en enduction, renforcée ou non par une armature textile, associée<B>à</B> une sous- couche additionnelle et recouverte sur sa face par une couche d'enduit superficielle qui consiste<B>à</B> réaliser le revêtement de surface, soit en continu avec la réalisation de la structure de base, soit sur un support transfert, un complexe bicouche par<B>:</B> dépôt sur la face supérieure du complexe de base, ou sur un support transfert, d'une couche (2) de plastisol de PVC transparent ou coloré que l'on prégélifie par traitement thermique<B>;</B> en continu, recouvrement de la couche de plastisol (2) pré-gélifiée d'une couche de poudre thermodurcissable<B>(7)</B> et second traitement thermique<B>(8)</B> de l'ensemble permettant la formation d'un film continu<B>(9)</B> et la réticulation de la poudre<B>;</B> passage du revêtement ainsi formé dans un four<B>à</B> air chaud<B>(11),</B> entraffiant la gélification/réticulation de la poudre de surface, l'ensemble étant ensuite éventuellement grainé et réceptionné.<U> CLAIMS </ U> <B> I / </ B> Floor covering comprising a base structure made of thermoplastic material, in particular plasticized PVC, pressed, calendered, extruded, coated or printed, optionally reinforced by a textile reinforcement and which may comprise on its underside an underlayer (1a), and whose apparent face is constituted by a surface layer associated with said base structure, characterized in that the surface layer is constituted by a bilayer complex comprising a thermoplastic layer coated with a <B> (9) to </ B> film based on a thermosetting polymer. 2 / coating according to claim <B> 1, </ B> characterized in that the surface thermoplastic layer (2) is <B> to </ B> plasticized base, is colored or transparent and has a thickness between 0.2 and <B> 0.8 </ B> mm, and the thermosetting polymer surface film is <B> to </ B> polyester base and has a thickness of <B> 15 </ B> and <B> 150 </ B> gin and preferably between <B> 30 </ B> and <B> 80 </ B> #Lm. <B> Y </ B> Process for the production of a floor covering comprising a base structure <B> (1) </ B> made of plasticized PVC, obtained by pressing, calendering, extrusion coating, reinforced or not by a textile reinforcement, associated <B> with </ B> an additional sub-layer and covered on its face by a layer of surface coating which consists of <B> to </ B> achieve the surface coating, either continuously with the realization of the basic structure, either on a transfer medium, a bilayer complex by depositing on the upper face of the base complex, or on a transfer medium, a layer (2) of transparent or colored PVC plastisol which is pregelled by heat treatment <B>; </ B> continuously, covering of the layer of pre-gelled plastisol (2) with a layer of thermosetting powder <B> (7) ) And the second heat treatment <B> (8) </ B> of the assembly allowing the formation of a continuous film <B> (9) </ B> and the crosslinking of the powder <B> ; </ B> passage of the coating thus formed in a furnace <B> to </ B> hot air <B> (11), </ B> interaffiliating the gelling / crosslinking of the surface powder, the assembly then being optionally grained and received.
FR0002538A 2000-02-29 2000-02-29 PLASTIC FLOOR COVERING AND METHOD FOR OBTAINING SAME Expired - Fee Related FR2805549B1 (en)

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DE60100943T DE60100943T2 (en) 2000-02-29 2001-02-27 METHOD FOR PRODUCING A FLOORING FROM PLASTIC MATERIAL
EP01909902A EP1266066B1 (en) 2000-02-29 2001-02-27 Method for producing a plastic floor covering
PCT/FR2001/000557 WO2001064996A1 (en) 2000-02-29 2001-02-27 Method for producing a plastic floor covering
AU2001237497A AU2001237497B2 (en) 2000-02-29 2001-02-27 Method for producing a plastic floor covering
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