FR2851193A1 - Preparing a water-tight, adhesive joint, useful particularly in automobiles, includes applying an adhesive directly to an extruded profile, then crosslinking the adhesive - Google Patents
Preparing a water-tight, adhesive joint, useful particularly in automobiles, includes applying an adhesive directly to an extruded profile, then crosslinking the adhesive Download PDFInfo
- Publication number
- FR2851193A1 FR2851193A1 FR0301876A FR0301876A FR2851193A1 FR 2851193 A1 FR2851193 A1 FR 2851193A1 FR 0301876 A FR0301876 A FR 0301876A FR 0301876 A FR0301876 A FR 0301876A FR 2851193 A1 FR2851193 A1 FR 2851193A1
- Authority
- FR
- France
- Prior art keywords
- adhesive
- crosslinking
- profile
- tight
- water
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0053—Producing sealings
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
- B29C48/155—Partial coating thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/15—Sealing arrangements characterised by the material
- B60J10/16—Sealing arrangements characterised by the material consisting of two or more plastic materials having different physical or chemical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/30—Sealing arrangements characterised by the fastening means
- B60J10/34—Sealing arrangements characterised by the fastening means using adhesives
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
Abstract
Description
PROCEDE DE FABRICATION D'UN JOINT D'ETANCHEITE DE TYPE ADHESIVE, ENMETHOD FOR MANUFACTURING AN ADHESIVE-TYPE SEAL, IN
PARTICULIER POUR L'INDUSTRIE AUTOMOBILE. PARTICULAR FOR THE AUTOMOTIVE INDUSTRY.
L'invention concerne un procédé de fabrication d'un joint 5 d'étanchéité de type adhésivé, en particulier pour l'industrie automobile ou celle du bâtiment. The invention relates to a method of manufacturing an adhesive type seal 5, in particular for the automotive or building industry.
D'une manière générale, on connaît des joints d'étanchéité qui sont fixés sur leurs supports par l'intermédiaire d'une bande adhésive. Generally speaking, seals are known which are fixed to their supports by means of an adhesive strip.
Une telle bande à base d'acrylique ou de PU par exemple, se 10 caractérise par une couche principale de section rectangulaire qui peut être adhésive dans sa masse. En variante, la face de la couche principale destinée à être collée par pression sur son support, peut être recouverte d'une couche adhésive de renfort elle-même recouverte d'un film protecteur pelable. Par ailleurs, l'autre face de la couche principale, côté joint 15 d'étanchéité, peut être revêtue d'une couche adhésive spécifique qui est thermoréactivée au moment de la dépose de la bande sur le joint d'étanchéité. Such a tape based on acrylic or PU for example, is characterized by a main layer of rectangular section which can be adhesive in its bulk. As a variant, the face of the main layer intended to be glued by pressure to its support, may be covered with an adhesive reinforcement layer itself covered with a peelable protective film. Furthermore, the other face of the main layer, on the seal side, can be coated with a specific adhesive layer which is heat-activated when the strip is deposited on the seal.
La bande est stockée sur une bobine et déroulée pour être déposée pendant l'opération d'extrusion du profilé ou après cette opération 20 sur le joint fini. Le joint est ensuite déposé sur son support par un procédé de mise en pression qui peut être manuel ou automatique. The strip is stored on a reel and unwound to be deposited during the extrusion operation of the profile or after this operation on the finished joint. The seal is then deposited on its support by a pressurization process which can be manual or automatic.
Cependant, ces bandes adhésives, en plus d'un cot de fabrication important, présentent une limite technique quant à la largeur minimum faisable. However, these adhesive tapes, in addition to a significant manufacturing cost, have a technical limit as to the minimum feasible width.
Un but de l'invention est de pallier notamment une telle limitation en concevant une nouvelle technique de fabrication de joints avec des bandes adhésives, qui soit apte à s'affranchir de toute contrainte technique. An object of the invention is to overcome such a limitation in particular by devising a new technique for manufacturing seals with adhesive strips, which is able to overcome any technical constraint.
A cet effet, l'invention propose un procédé de fabrication d'un 30 joint d'étanchéité de type adhésivé, en particulier pour l'industrie automobile ou celle du bâtiment, qui est caractérisé en ce qu'il consiste, à partir d'un profilé extrudé, à sur-extruder l'adhésif directement sur le joint et sur une largeur qui est fixe ou variable, et à réticuler ensuite ledit adhésif. To this end, the invention provides a method of manufacturing an adhesive type seal, in particular for the automotive or construction industry, which is characterized in that it consists, from an extruded profile, over-extruding the adhesive directly onto the joint and over a width which is fixed or variable, and then crosslinking said adhesive.
D'une manière générale, le procédé consiste à fabriquer le joint par extrusion ou coextrusion d'un profilé, d'une façon connue en soi, et à 5 sur-extruder l'adhésif au moyen d'une buse et à le réticuler, puis à recouvrir la face libre de l'adhésif au moyen d'un film de protection pelable. In general, the method consists in manufacturing the joint by extrusion or coextrusion of a profile, in a manner known per se, and in over-extruding the adhesive by means of a nozzle and in crosslinking, then cover the free face of the adhesive with a peelable protective film.
Par ailleurs, le procédé selon l'invention consiste à réaliser l'adhésif à partir d'un élastomère thermoplastique par exemple, tel qu'un "holt- melt" réactif ou un adhésif thermofusible réactif qui peut être réalisé sur 10 la base d'un copolymère bloc, sensible à la pression et réticulable aux rayons ultra-violets par exemple. Furthermore, the method according to the invention consists in producing the adhesive from a thermoplastic elastomer for example, such as a reactive "holt-melt" or a reactive hot-melt adhesive which can be produced on the basis of a block copolymer, sensitive to pressure and crosslinkable to ultraviolet rays for example.
Enfin, selon un exemple de mise en oeuvre du procédé, il consiste à prendre pour copolymère bloc un polystyrène polybutadiène polystyrène par exemple, avec une architecture adaptée à la réticulation. Finally, according to an example of implementation of the method, it consists in taking for block copolymer a polystyrene polybutadiene polystyrene for example, with an architecture adapted to crosslinking.
Un adhésif selon l'invention peut ainsi avoir une section droite de largeur et/ou d'épaisseur variable pour un même profilé extrudé, c'est-àdire que le procédé de dépose de l'adhésif permet de bénéficier d'une latitude de géométrie de l'adhésif, qui est mieux adaptée à la semelle éventuellement concave/convexe du profilé extrudé. An adhesive according to the invention can thus have a cross section of variable width and / or thickness for the same extruded profile, that is to say that the adhesive removal process makes it possible to benefit from a latitude of geometry adhesive, which is better suited to the possibly concave / convex sole of the extruded profile.
2 0 D'une manière générale, l'invention peut s'appliquer à tous les joints d'étanchéité adhésives sur un panneau mobile tel une porte ou un hayon, sur une caisse de véhicule à moteur ou toute pièce rapportée sur cette caisse telle un cache plastique d'habillage intérieur ou garniture, sur un vitrage fixe ou mobile d'un véhicule à moteur tel une voiture, un utilitaire, un 25 camion, un bus, un train... In general, the invention can be applied to all adhesive seals on a movable panel such as a door or a tailgate, on a body of a motor vehicle or any part attached to this body such as a plastic cover for interior trim or trim, on fixed or movable glazing of a motor vehicle such as a car, utility vehicle, truck, bus, train ...
D'autres avantages, caractéristiques et détails de l'invention ressortiront du complément de description qui va suivre en référence à des dessins annexés, donnés uniquement à titre d'exemple et dans lesquels: les figures 1 à 4 sont des vues en coupe de différents joints 30 d'étanchéité auxquels le procédé selon l'invention peut s'appliquer, et les figures 5 et 6 illustrent sous forme de schémas-blocs deux procédés de fabrication de l'un quelconque des joints illustrés sur les figures 1 à 4. Other advantages, characteristics and details of the invention will emerge from the additional description which follows with reference to the appended drawings, given solely by way of example and in which: FIGS. 1 to 4 are sectional views of different seals to which the method according to the invention can be applied, and FIGS. 5 and 6 illustrate in the form of block diagrams two methods of manufacturing any of the seals illustrated in FIGS. 1 to 4.
Les différents joints d'étanchéité 1 illustrés sur les figures 1 à 5 4 sont réalisés à partir de profilés 10 qui ont été extrudés ou coextrudés et ils présentent une semelle de fixation 3 dont au moins une face est recouverte d'une bande adhésive 5, et une partie élastiquement déformable 6 destinée à assurer l'étanchéité. A titre d'exemple, le joint de la figure 1 est un joint d'entre-porte, celui de la figure 2 un joint de double gouttière de pavillon, celui 10 de la figure 3 un joint de porte et celui de la figure 4 un joint d'entre-porte. The various seals 1 illustrated in FIGS. 1 to 5 4 are produced from profiles 10 which have been extruded or coextruded and they have a fixing sole 3 of which at least one face is covered with an adhesive strip 5, and an elastically deformable part 6 intended to ensure sealing. By way of example, the seal in FIG. 1 is a door seal, that in FIG. 2 a double roof gutter seal, that in FIG. 3 a door seal and that in FIG. 4. a door seal.
D'une manière générale, la face libre de la bande adhésive 5 est protégée par un film protecteur pelable 7. In general, the free face of the adhesive strip 5 is protected by a peelable protective film 7.
Le procédé de fabrication selon l'invention peut notamment s'appliquer indifféremment à chacun de ces joints et, d'une façon connue en 15 soi, un profilé est réalisé par extrusion ou coextrusion de plusieurs matériaux élastomères et/ou plastomères, en fonction du type de joint considéré, ce profilé est ensuite éventuellement vulcanisé et découpé à longueur pour réaliser un joint prêt au dépôt. The manufacturing method according to the invention can in particular be applied equally to each of these joints and, in a manner known per se, a profile is produced by extrusion or coextrusion of several elastomeric and / or plastomeric materials, depending on the type of joint considered, this profile is then optionally vulcanized and cut to length to produce a joint ready for deposition.
D'une manière générale, le procédé selon l'invention consiste, 20 une fois le profilé 10 extrudé ou coextrudé et vulcanisé si nécessaire, à surextruder l'adhésif 5 directement sur le profilé 10, ce dépôt étant fait au moyen d'une buse par exemple, et ensuite à réticuler l'adhésif 5 avant de le recouvrir du film de protection pelable 7. In general, the method according to the invention consists, once the profile 10 is extruded or coextruded and vulcanized if necessary, over-extruding the adhesive 5 directly on the profile 10, this deposit being made by means of a nozzle for example, and then to crosslink the adhesive 5 before covering it with the peelable protective film 7.
L'adhésif 5 sur-extrudé directement sur le profilé 10 remplace 25 la bande adhésive selon l'art antérieur, sachant que cet adhésif peut être un élastomère thermoplastique tel qu'un adhésif thermofusible réactif qui peut être réticulé notamment aux rayons ultra-violets et être réalisé à partir d'un copolymère bloc adapté à ce type de réticulation, comme par exemple du polystyrène polybutadiène polystyrène. The adhesive 5 over-extruded directly onto the profile 10 replaces the adhesive tape according to the prior art, knowing that this adhesive can be a thermoplastic elastomer such as a reactive hot-melt adhesive which can be crosslinked in particular with ultraviolet rays and be made from a block copolymer suitable for this type of crosslinking, such as for example polystyrene polybutadiene polystyrene.
Selon un premier mode de fabrication du joint 1 tel qu'illustré schématiquement à la figure 5, on réalise un procédé en continu qui consiste à fabriquer en 100 un profilé 10 par extrusion ou par coextrusion, à vulcaniser en 102 le profilé 10 si nécessaire en fonction des matériaux utilisés, à sur-extruder en 104 sur le profilé 10, dont la surface de réception a été éventuellement préparée, au moyen d'une buse l'adhésif 5 sous une forme pâteuse ou semi-liquide sur une épaisseur de l'ordre de 0,2mm à 1,5mm et 5 sur une longueur qui peut être fixe ou variable selon la forme et les dimensions de la semelle de fixation 3 du profilé 10, à réticuler l'adhésif 5 en 106 au moyen d'une source de rayons ultra-violets par exemple, à déposer un film protecteur pelable 7 en 108 qui est en polyéthylène ou en PP/PE par exemple sur la face libre de l'adhésif 5, et à stocker sur une bobine ou à 10 découper le profilé 10 à longueur souhaitée en 110 pour obtenir l'un des joints des figures 1 à 4 par exemple prêt à être déposé sur son support de réception. According to a first method of manufacturing the seal 1 as illustrated diagrammatically in FIG. 5, a continuous process is carried out which consists in manufacturing at 100 a profile 10 by extrusion or by coextrusion, vulcanizing at 102 the profile 10 if necessary by depending on the materials used, to be over-extruded at 104 on the profile 10, the receiving surface of which has possibly been prepared, by means of a nozzle the adhesive 5 in a pasty or semi-liquid form over a thickness of the range from 0.2mm to 1.5mm and 5 over a length which can be fixed or variable depending on the shape and dimensions of the fixing flange 3 of the profile 10, to crosslink the adhesive 5 at 106 by means of a source of ultraviolet rays for example, to deposit a peelable protective film 7 at 108 which is made of polyethylene or PP / PE for example on the free face of the adhesive 5, and to be stored on a reel or to cut the profile 10 at desired length in 110 to obtain the one of the seals of FIGS. 1 to 4, for example ready to be deposited on its receiving support.
En variante, comme cela est schématiquement illustré sur la figure 6, le procédé de fabrication du joint est discontinu et consiste, à partir 15 d'un approvisionnement 100' d'un profilé 10 préalablement fabriqué par extrusion ou coextrusion et stocké en continu sur une bobine ou découpé selon des longueurs prédéterminées après avoir éventuellement subi une opération de moulage ou de surmoulage pour former des lèvres d'étanchéité par exemple, à reprendre les étapes 104, 106, 108 et 110 de la figure 5 pour 20 obtenir également l'un des joints des figures 1 à 4 par exemple prêt à être déposé sur son support de réception. Alternatively, as schematically illustrated in FIG. 6, the method of manufacturing the joint is discontinuous and consists, starting from a supply 100 ′ of a profile 10 previously produced by extrusion or coextrusion and stored continuously on a coil or cut to predetermined lengths after having possibly undergone a molding or overmolding operation to form sealing lips for example, to repeat steps 104, 106, 108 and 110 of FIG. 5 to also obtain one seals of Figures 1 to 4 for example ready to be deposited on its receiving support.
Un tel joint ainsi obtenu peut être ensuite déposé manuellement ou à l'aide d'un système de dépose robotisé sur un élément de carrosserie d'un véhicule et ce, de la même manière que les joints adhésives 25 classiques. Such a seal thus obtained can then be deposited manually or using a robotic depositing system on a bodywork element of a vehicle, in the same way as conventional adhesive seals.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0301876A FR2851193B1 (en) | 2003-02-17 | 2003-02-17 | PROCESS FOR PRODUCING AN ADHESIVE TYPE SEAL, ESPECIALLY FOR THE AUTOMOBILE INDUSTRY |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0301876A FR2851193B1 (en) | 2003-02-17 | 2003-02-17 | PROCESS FOR PRODUCING AN ADHESIVE TYPE SEAL, ESPECIALLY FOR THE AUTOMOBILE INDUSTRY |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2851193A1 true FR2851193A1 (en) | 2004-08-20 |
FR2851193B1 FR2851193B1 (en) | 2006-08-04 |
Family
ID=32749613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0301876A Expired - Fee Related FR2851193B1 (en) | 2003-02-17 | 2003-02-17 | PROCESS FOR PRODUCING AN ADHESIVE TYPE SEAL, ESPECIALLY FOR THE AUTOMOBILE INDUSTRY |
Country Status (1)
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FR (1) | FR2851193B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3081120A1 (en) * | 2018-05-18 | 2019-11-22 | Sealynx International | ENVELOPMENT AND / OR SEALING ELEMENT FOR MOTOR VEHICLE. |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1428811A (en) * | 1972-03-20 | 1976-03-17 | Custom Trim Prod | Vehicle trim strip |
JPH04290728A (en) * | 1991-03-20 | 1992-10-15 | Kinugawa Rubber Ind Co Ltd | Manufacture of wheather strip |
JPH04296537A (en) * | 1991-03-27 | 1992-10-20 | Kinugawa Rubber Ind Co Ltd | Manufacture of weather strip |
US5730446A (en) * | 1995-06-20 | 1998-03-24 | Minnesota Mining And Manufacturing Company | Sealing strip suitable for sealing a hem flange |
DE19735396A1 (en) * | 1997-08-14 | 1999-02-18 | Josef Auberger | Soft rubber strip for adhesion to e.g. vessels, pipelines, floors and roofs |
-
2003
- 2003-02-17 FR FR0301876A patent/FR2851193B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1428811A (en) * | 1972-03-20 | 1976-03-17 | Custom Trim Prod | Vehicle trim strip |
JPH04290728A (en) * | 1991-03-20 | 1992-10-15 | Kinugawa Rubber Ind Co Ltd | Manufacture of wheather strip |
JPH04296537A (en) * | 1991-03-27 | 1992-10-20 | Kinugawa Rubber Ind Co Ltd | Manufacture of weather strip |
US5730446A (en) * | 1995-06-20 | 1998-03-24 | Minnesota Mining And Manufacturing Company | Sealing strip suitable for sealing a hem flange |
DE19735396A1 (en) * | 1997-08-14 | 1999-02-18 | Josef Auberger | Soft rubber strip for adhesion to e.g. vessels, pipelines, floors and roofs |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 199248, Derwent World Patents Index; Class A32, AN 1992-393191, XP002269204 * |
PATENT ABSTRACTS OF JAPAN vol. 017, no. 106 (M - 1375) 4 March 1993 (1993-03-04) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3081120A1 (en) * | 2018-05-18 | 2019-11-22 | Sealynx International | ENVELOPMENT AND / OR SEALING ELEMENT FOR MOTOR VEHICLE. |
FR3081121A1 (en) * | 2018-05-18 | 2019-11-22 | Sealynx International | ENVELOPMENT AND / OR SEALING ELEMENT FOR MOTOR VEHICLE. |
Also Published As
Publication number | Publication date |
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FR2851193B1 (en) | 2006-08-04 |
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