EP3209741A1 - Feuille autocollante pour la fixation d'un emplâtre élastomère et procédé de réparation d'un pneumatique de véhicule à moteur ou de liaison de deux couches d'un revêtement élastomère - Google Patents

Feuille autocollante pour la fixation d'un emplâtre élastomère et procédé de réparation d'un pneumatique de véhicule à moteur ou de liaison de deux couches d'un revêtement élastomère

Info

Publication number
EP3209741A1
EP3209741A1 EP15781936.8A EP15781936A EP3209741A1 EP 3209741 A1 EP3209741 A1 EP 3209741A1 EP 15781936 A EP15781936 A EP 15781936A EP 3209741 A1 EP3209741 A1 EP 3209741A1
Authority
EP
European Patent Office
Prior art keywords
adhesive
self
film
elastomer
layer
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.)
Withdrawn
Application number
EP15781936.8A
Other languages
German (de)
English (en)
Inventor
Patric Scheungraber
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.)
Rema Tip Top AG
Original Assignee
Rema Tip Top AG
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 Rema Tip Top AG filed Critical Rema Tip Top AG
Publication of EP3209741A1 publication Critical patent/EP3209741A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/383—Natural or synthetic rubber
    • 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
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/22—Presence of unspecified polymer
    • C09J2400/226—Presence of unspecified polymer in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/26—Presence of textile or fabric
    • C09J2400/263—Presence of textile or fabric in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/28—Presence of paper
    • C09J2400/283—Presence of paper in the substrate

Definitions

  • Self-adhesive film for fixing an elastomer plaster and method for repairing a motor vehicle tire or for joining two layers of a
  • the present invention relates to a self-adhesive film and a method for repairing a motor vehicle tire or for joining two layers of an elastomeric covering.
  • the self-adhesive film is characterized in that it is suitable for fixing an elastomer plaster together during the vulcanization of an elastomer component or of a plurality of elastomer components.
  • the elastomer component or the elastomer components are preferably motor vehicle tires or cavity linings of tank cars or tank cars.
  • the repair of damaged vehicle tires which have injuries in the region of the running surfaces or the side wall is usually carried out by first cutting a so-called "funnel" and filling it with raw rubber. To complete the repair, the tire with the repaired damaged area and the applied repair plaster is vulcanized in an autoclave, which takes place at predetermined pressure and temperature values.
  • the prior art repair / retreading methods require that a so-called envelope be wrapped around the outside, and optionally inside, around the tire that fixes the repair patch to the tire at the predetermined position during vulcanization.
  • the so-called Envelope is usually made of flexible elastomer / plastic, so that it can cling to the outer and / or inner contour of the tire.
  • a vacuum is drawn between the tire and the Envelope according to the previously known method.
  • the envelope has, inter alia, the technical purpose of keeping the repair patch in position and undermining the repair site by the applied atmospheric pressure during the Preventing vulcanization, which could otherwise lead to a replacement of the repair plaster.
  • elastomer linings of tank cars or tank wagons in which, for example, corrosive chemicals are transported, are produced in such a way that layers of inner or elastomeric linings are arranged relative to one another and then adhesively bonded together and / or vulcanized.
  • This also requires elaborate preparations and processing steps so that the joints between two trim parts during vulcanization safely remain in a predetermined position. Gaps between two trim elements would be fatal in the sense that transported chemicals could attack the outer shell of the tank or tank wagon.
  • a self-adhesive film according to the invention may be suitable for applying an elastomeric plaster during vulcanization of an elastomeric component fix.
  • the elastomeric component is a motor vehicle tire or an element of a cavity lining of a tank or tank wagon.
  • the term "elastomer plaster” refers in particular to a sheet-like element made of elastomer or to a sheet-like element which has at least one material portion of elastomer.
  • the term "elastomeric plaster” quite particularly preferably describes a repair patch or repair patch for repairing a motor vehicle tire.
  • the self-adhesive film may have a carrier layer which may have a predetermined temperature resistance and may be bonded to an adhesive layer.
  • the adhesive layer may comprise an adhesive and may have a predetermined tack at room temperature and ambient pressure.
  • the adhesive layer may have a predetermined peel resistance and / or a predetermined sealing property under vulcanization conditions, in particular under vulcanization pressure and vulcanization temperature.
  • the aforementioned self-adhesive film according to the invention has the advantage that it can completely replace the use of an envelope during the repair and / or retreading of a motor vehicle tire.
  • the damaged area is first repaired and the tire patch / tire repair material applied to the damaged area.
  • the self-adhesive film is used and adhered to the elastomer plaster in such a way that the self-adhesive film projects with its edge surfaces beyond the side edges of the elastomer plaster.
  • the film adheres to the area of the protruding edge surfaces on the tire surface and seals the repair site or fixes the elastomer plaster in the subsequent vulcanization process in the autoclave at its position on the tire.
  • the previous steps of creating a Envelopes and the creation of a vacuum between the tire and the Envelope be completely replaced by the application of the self-adhesive film.
  • the self-adhesive film also has the advantage that it can be applied very easily and with little effort and removed again and fixed due to their temperature resistance and the specified peel resistance, the elastomer plaster on the tire.
  • the predetermined temperature resistance of the carrier layer should in this case indicate, in particular, a maximum temperature at which the carrier layer still has sufficient coherence to connect or hold the elastomeric plaster to the tire.
  • the predetermined temperature resistance preferably indicates the transition of the material of the carrier layer to the thermoplastic region, if the carrier layer consists of polymer, in particular of a thermoplastic.
  • the predetermined temperature resistance of the carrier layer is 5 K to 10 K above a vulcanization temperature at vulcanization pressure.
  • the predetermined temperature resistance is most preferably between 90 ° C and 180 ° C.
  • the adhesive layer may further comprise an adhesive and is most preferably formed by the adhesive itself.
  • an adhesive is most preferably formed by the adhesive itself.
  • ready-to-use tackiness refers to the ability of two surfaces of the same or different materials to form a strong bond upon contact, which counteracts the separation of the surfaces.For the quantitative characterization of this property, the force necessary for separation can be given , The separation conditions depending on fracture mechanics knowledge and application-specific Criteria must be defined.
  • a so-called peel resistance or release value which is part of the ready-to-use tack, can preferably be determined in accordance with test methods in accordance with DIN EN 28510-1 or DIN EN ISO 8510-2.
  • the ambient pressure is preferably between 0.9 bar to 1.1 bar.
  • the vulcanization conditions are preferably between 1 bar and 10 bar with regard to the vulcanization pressure and the vulcanization temperature is preferably between 90 ° C. and 170 ° C.
  • the claimed predetermined peel resistance preferably refers to the force necessary to peel off the self-adhesive film from the elastomeric component.
  • This predetermined peel resistance according to the invention should preferably be so great that the self-adhesive film can reliably hold the elastomer patch in the selected position.
  • the predetermined peel resistance (at vulcanization pressure and vulcanization temperature) is between 0.5 N / mm to 10 N / mm, and more preferably between 1 N / mm and 5 N / mm.
  • the predetermined sealing property of the self-adhesive film preferably keeps the elastomeric patch in the selected position during vulcanization.
  • the holding force generated by the sealing property is particularly due to the fact that the vulcanization pressure built up during vulcanization in an autoclave acts on the self-adhesive film and can form a pressure difference to the over-adhered area which generates the holding force in the direction of the component to be vulcanized.
  • the "holding" of the repair patch during vulcanization or their Initial phase in particular on the seal in the edge region of the self-adhesive film, whereby the vulcanization pressure in the autoclave or a pressure difference presses on the film and thereby builds up a mechanical pressure.
  • the sealing property thus leads to a preferably additional holding force that can fix the elastomer plaster on the component.
  • the area of the carrier layer and the area of the adhesive layer may be the same size.
  • the surface of the self-adhesive film may be so large that the self-adhesive film, when adhered to the elastomer patch, protrudes beyond the side edges of the elastomer patch.
  • the side edges of the self-adhesive film preferably project beyond the side edges of the elastomer plaster with a predetermined length if the center points of the self-adhesive film and the elastomer plaster are arranged one above the other.
  • the predetermined length with which the self-adhesive film or its edges project is preferably between 5 mm and 10 cm, and is particularly preferably 10 mm to 5 cm, and very particularly preferably 20 mm to 3.5 cm.
  • the sealing property may i.a. be adjusted by the length of the protruding side edges of the self-adhesive film, wherein the sealing property may increase with a larger projection.
  • the "predetermined sealing property" is intended in particular to mean that a predetermined pressure difference between the area glued by the self-adhesive film and the vulcanization pressure is achievable
  • the predetermined pressure difference at maximum vulcanization pressure is between 0.05 bar and 10 bar and particularly preferably between 0.1 bar and 5 bar
  • the sealing property can preferably be adjusted by means of the above-described length of the protruding edge regions, the thickness of the adhesive layer, the mass of the adhesive and / or the gas-tightness of the selected material of the carrier layer.
  • the aforementioned properties of the self-adhesive film guarantee one secure hold of the elastomer plaster on the elastomer component, in particular during the entire vulcanization time, so that a reliable connection between the elastomer component and the elastomer plaster can be formed.
  • the adhesive may include rubber, solids and tackifiers.
  • the solids are resins and the tackifiers are chemical blends to increase the surface tack of rubber or elastomer components.
  • the tackifiers may contain resinous materials that are converted into dispersions or emulsions.
  • the adhesive may contain from 20% to 70% masticated natural rubber and, for example, from 2% to 10% liquid polyisoprene rubber. Further, 1% to 10% resins may be provided. Further mixing constituents may be carbon black, silica, chalk and sulfur, retarder or accelerator or zinc oxide, plasticizer, stearic acid and / or aging inhibitor.
  • the adhesive may also have a butyl content. If the adhesive also contains a butyl component, a sealing of the tire surface roughened in the edge region of the repair site during vulcanization is simultaneously carried out, since the butyl component of the adhesive bonds to the surface during vulcanization and leads to a seal.
  • the thickness of the adhesive layer can be between 5 pm and 500 pm and is preferably between 15 pm and 200 pm thick. Most preferably, the strength is in the range of 20 pm to 25 pm.
  • the above-mentioned thickness of the adhesive layer allows for the highest possible flexibility of the self-adhesive film so that it can cling well to the outer contours of the damaged area and the elastomer plaster and at the same time become achieved an optimal seal or Dichtseseeschaft against the outside atmosphere when the self-adhesive film is bonded to the elastomer component.
  • the adhesive layer has in addition to the property to produce adhesion, and a sealing effect or the predetermined sealing property, which preferably seals the gas-tightly sealed from the self-adhesive film elastomeric plaster from the outside atmosphere.
  • the adhesive layer may comprise a specific mass of adhesive between 10 g / m 2 and 200 g / m 2 (based on the area of the carrier layer). More preferably, the specific mass of adhesive is from 10 g / m 2 to 150 g / m 2 and most preferably from 10 g / m 2 to 100 gm 2 .
  • the mass of adhesive is a factor in that a sufficient adhesive bond between the self-adhesive film and the elastomer component can be formed and at the same time a secure seal to the outside atmosphere can be produced.
  • the carrier layer of the self-adhesive film may preferably comprise a polymer.
  • the carrier layer can also be made of paper or fabric impregnated with a polymer.
  • An important feature of the backing layer is, in addition to mechanically holding the adhesive layer, to seal the covered elastomeric patch from the outside atmosphere. In other words, the carrier layer must have a high gas-tightness. If the carrier layer is made of polymer, preference is given in particular to polyamide, polypropylene or polyethylene which at the same time have the abovementioned temperature stability. If the carrier layer is made of paper or fabric, a polymer impregnation is preferably carried out with regard to the desired gas-tightness or the predetermined sealing property. In addition to the aforementioned properties, the carrier layer is also very flexible, so that an optimal contour adaptation to the Elastomer patch and the tire surface and in general application is possible.
  • the adhesive layer can also be combined with a second functional layer, which is applied directly to the carrier layer, so that the adhesive layer rests on this second functional layer.
  • a further or more further layers may be provided between the carrier layer and the adhesive layer.
  • the second functional layer can be, for example, a further elastomer layer.
  • the second functional layer can also be formed from the same material as the carrier layer.
  • the second functional layer may, for example, have a graphic print which serves as a positioning aid. For example, lines, circles, frames or the like may be provided for easier alignment or positioning of the self-adhesive film.
  • the self-adhesive film can be provided over the entire surface or only in some areas with an adhesive.
  • the partially applied adhesive layer may, for example, have two-dimensional patterns which combine uncovered and adhesive-covered partial surfaces.
  • the adhesive can also be applied cost-effectively.
  • the adhesive film may permanently bond to, for example, the tire surface, remain on the tire surface after vulcanization and removal of the film, for example, and additionally seal it. This saves with regard to a reduction of the work effort (further) steps for the aftertreatment of the vehicle tire (or the elastomeric lining).
  • the self-adhesive film can also be transparent.
  • the self-adhesive film may have a protective layer or a protective layer on the adhesive layer opposite the carrier layer, which protects the adhesive layer from aging during storage.
  • the protective layer may be before use of the film be peeled off from the adhesive layer.
  • the invention comprises a method for repairing a motor vehicle tire, Elastomerveremployedsschadstelle or for connecting two layers of elastomeric covering.
  • the layers of elastomeric covering may preferably be arranged adjacent to one another. Alternatively, the layers may be arranged overlapping each other.
  • the method according to the invention may initially comprise the step of applying the elastomeric patch to the repaired puncture site or the elastomeric lining damage location or placing the two elastomeric lining layers together so that the two layers abut one another at a seam or overlap one another at a seam. Thereafter, an optional elastomeric patch can be applied to the interface.
  • the elastomer patch or interface may be overcoated with the self-adhesive film of the invention.
  • the sticking can be carried out in such a way that the self-adhesive film protrudes respectively at the side edges of the elastomer plaster or completely covers the seam.
  • the vulcanization can be carried out. For this purpose, the necessary pressure and temperature determinations can be established and applied or maintained for a predetermined time.
  • the inventive method thus has the advantage that the effort to prepare the vulcanization can be significantly reduced and shortened in time.
  • the pasting over of the elastomer plaster and / or the interface with the self-adhesive film is less complex and requires no further components or aids such as an envelope or the like.
  • the film After vulcanization, the film can be removed and before vulcanization, a protective layer can be removed from the adhesive layer of the film, which protects the adhesive layer of the film from aging and soiling can.
  • Fig.l is a sectional view of a self-adhesive film which is mounted on a tire surface
  • Fig. 2 is a sectional view of a self-adhesive film, which is mounted on a cavity lining, and
  • Fig. 3 is a plan view of the self-adhesive film.
  • Fig. 1 shows a sectional view through a tire 40 with a repaired damaged area 60, on which a tire repair patch 10 is adhered.
  • the illustrated portion of the tire 40 includes a ply of sidewall rubber 110, the carcass 100 with fibrous inserts 150, and an innerliner 90.
  • the figure shows the inventive (self-adhesive) film 1, which has been bonded above the tire repair plaster 10.
  • the defect 60 shown is filled with raw rubber 50.
  • the tire patch 10 preferably comprises, as shown, a tacky tie layer 30 which holds the tire repair patch 10 in communication with the shown inner liner 90 of the tire 40.
  • Another layer of the tire repair patch 10 is a rubber layer 20 having support members 70, such as steel or carbon fiber threads.
  • the film 1 shown has an adhesive layer 3, which establishes a connection between the inner liner 90 and the film 1.
  • the adhesive layer 3 is arranged on a preferably polymer-based carrier layer 2.
  • the self-adhesive film 1 according to the invention is very flexible and, as shown, optimally adapts to the outer contour of the tire repair plaster 10 and the contour of the inner liner 90.
  • the film 1 projects respectively past side edges 10a of the tire repair plaster 10 (see FIG. 3) so that the tire repair plaster 10 is firmly in position during vulcanization, inter alia due to the adhesive bond between the film 1 and the inner liner 90 or the uppermost layer of the tire repair plaster 10 is held. Furthermore, the film 1 has the object of no gas exchange between a cavity in which the tire repair patch 10 is disposed, and allow an outside of the film 1. Accordingly, the shown Carrier layer 2 preferably gas-tight and the adhesive layer 3 assumes in addition to the adhesive function and a sealing function against the outside atmosphere.
  • This sealing property of the self-adhesive film may produce a pressure difference of, for example, 0.05 bar or more in the over-adhered area from the outside atmosphere which has an elevated pressure of, for example, 5 bar during vulcanization.
  • This possible pressure difference generates an (additional) holding force which acts in the direction of the surface of the elastomer component and presses the self-adhesive film together with the elastomer plaster, in particular during the vulcanization, safely and reliably against the component.
  • the vulcanization conditions are usually in the range of 2-bar1 bar to 10 bar pressure and at about 90 ° C to 180 ° C temperature. These conditions are preferred over a period of about 60 min. maintained for up to 10 hours. During this period and for the aforementioned temperature and pressure conditions, the self-adhesive film 1 has a peel resistance between the innerliner 90 and the uppermost layer of the tire repair patch 10 and the adhesive layer 3 of at least 0.5 N / mm, so that the tire repair patch 10 can not solve.
  • the adhesive layer 3 preferably has a proportion of 20% to 70% of masticated natural rubber. Furthermore, 2% to 10% of liquid polyisoprene rubber may be contained and up to 10% of resins to achieve the aforementioned peel resistance. Other ingredients may also be solids such as carbon black, silica, or chalk. If the adhesive layer 3 has a butyl content, sealing of the inner side of the tire covered by the film is also carried out during the vulcanization.
  • the method for applying the self-adhesive film 1 or for repairing the tire 40 or the elastomeric covering essentially comprises the steps of repairing the damaged area 60 and filling the damaged area 60 with raw rubber 50. Furthermore, the tire repair patch 10 is applied to the filled damaged area 50, 60 and the tire repair patch 10 is pasted over with the film 1 according to the invention. Thereafter, as usual and previously known, the vulcanization is carried out.
  • Fig. 2 shows the film 1 of the invention, which is not glued to a tire repair patch 10 of a motor vehicle tire 40, but over a seam 130 of two layers of elastomeric covering 120.
  • Large tank or tank cars have to protect the outer shell an elastomeric covering 120, so that, for example, corrosive chemicals can be transported.
  • the layers of the elastomeric covering 120 may be arranged either overlapping one another or edge to edge.
  • Fig. 2 shows by way of example an edge-to-edge arrangement.
  • An elastomeric patch 10 ' may also be bonded to the elastomeric lining 120 for the purpose of repairing the lining, which is constructed similarly to the repairing plaster 10 of FIG.
  • the film 1 according to the invention is adhered to the seam 130 or the elastomeric plaster 10'.
  • the layers, as described, can also be joined together without the use of an elastomeric plaster 10 '.
  • the seam 130 can be glued directly to the film 1, ie without repair patch 10 '.
  • the two layers of elastomeric lining 120 are caked together during vulcanization.
  • the layers of the elastomeric covering 120 can also be arranged edge to edge to each other. Even with this arrangement, the seam 130 can be glued directly to the film 1, without a repair patch 10 'is used. In this case, the edge end surfaces of the two layers of elastomeric covering 120 bond together during vulcanization.
  • the seam 130 can also be filled with raw rubber 50 ', so that even more complete and continuous closure of the seam 130 can be produced even more reliably.
  • FIG. 3 shows a plan view of the arrangement shown in FIG. 1, which comprises the tire 40, the tire repair plaster 10 and the film 1.
  • FIG. 3 shows, in particular, that the film 1 protrudes beyond this on all side sections of the tire repair plaster 10 and, as a result, an adhesive bond can be produced between the film 1 and the inner liner 90. Since the film shown schematically in FIG. 3 is transparent, the representation is to be understood such that the film 1 runs continuously within the white-drawn area and above the repair plaster 10 shown in FIG. 3.
  • FIG. 3 shows by way of example a rectangular base surface of the repair plaster 10 and the film 1. Other possible shapes include round, elliptical or square shapes of the base. The shape of the base of the repair plaster 10 may also differ from the shape of the base of the film 1. Furthermore, it is apparent from FIG. 3 that the protruding sections of the film 1 have different widths in the longitudinal and transverse directions. The protruding sections can also be the same width.
  • the invention describes a method and a self-adhesive film 1 which considerably simplify the repair of a tire 40 or an elastomer covering or the connection of two elastomer layers of an elastomer covering 120.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Adhesive Tapes (AREA)

Abstract

L'invention concerne en particulier une feuille autocollante (1) destinée à fixer un emplâtre élastomère (10) pendant la vulcanisation d'un élément élastomère. L'élément élastomère peut être en particulier un pneumatique de véhicule à moteur (40) ou un chemisage d'une cavité (120). La feuille (1) peut comprendre une couche de substrat (2) et une couche adhésive (3). La couche adhésive (2) peut présenter une pégosité prédéterminée à température et à pression ambiantes, et une résistance prédéterminée au pelage à une pression et à une température de vulcanisation.
EP15781936.8A 2014-10-20 2015-10-20 Feuille autocollante pour la fixation d'un emplâtre élastomère et procédé de réparation d'un pneumatique de véhicule à moteur ou de liaison de deux couches d'un revêtement élastomère Withdrawn EP3209741A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014221253.7A DE102014221253A1 (de) 2014-10-20 2014-10-20 Selbstklebende Folie zum Fixieren eines Elastomerpflasters und Verfahren zur Reparatur eines Kraftfahrzeugreifens oder zur Verbindung zweier Lagen einer Elastomerverkleidung
PCT/EP2015/074224 WO2016062696A1 (fr) 2014-10-20 2015-10-20 Feuille autocollante pour la fixation d'un emplâtre élastomère et procédé de réparation d'un pneumatique de véhicule à moteur ou de liaison de deux couches d'un revêtement élastomère

Publications (1)

Publication Number Publication Date
EP3209741A1 true EP3209741A1 (fr) 2017-08-30

Family

ID=54337273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15781936.8A Withdrawn EP3209741A1 (fr) 2014-10-20 2015-10-20 Feuille autocollante pour la fixation d'un emplâtre élastomère et procédé de réparation d'un pneumatique de véhicule à moteur ou de liaison de deux couches d'un revêtement élastomère

Country Status (6)

Country Link
US (1) US20170335143A1 (fr)
EP (1) EP3209741A1 (fr)
CN (1) CN107107495A (fr)
BR (1) BR112017007989A2 (fr)
DE (1) DE102014221253A1 (fr)
WO (1) WO2016062696A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017221648A1 (de) 2017-12-01 2019-06-06 Continental Reifen Deutschland Gmbh Verfahren zur Reparatur einer Aussparung in einem Reifenabschnitt eines Fahrzeugreifens
US11305500B1 (en) * 2020-03-10 2022-04-19 GlueTread, LLC External patch for puncture or slice on sidewall or tread section of a tire

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469054A2 (fr) * 2003-04-17 2004-10-20 tesa AG Film de protection autocollant pour la protection temporaire des peintures de véhicule

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BR112017007989A2 (pt) 2017-12-19
CN107107495A (zh) 2017-08-29
WO2016062696A1 (fr) 2016-04-28
US20170335143A1 (en) 2017-11-23

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