EP3209741A1 - Self-adhesive film for fixing an elastomer patch and method for repairing a motor vehicle tire or for connecting two layers of an elastomer lining - Google Patents
Self-adhesive film for fixing an elastomer patch and method for repairing a motor vehicle tire or for connecting two layers of an elastomer liningInfo
- 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- Withdrawn
Links
- 229920001971 elastomer Polymers 0.000 title claims abstract description 65
- 239000002313 adhesive film Substances 0.000 title claims abstract description 62
- 239000000806 elastomer Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims description 16
- 239000010410 layer Substances 0.000 claims abstract description 58
- 238000004073 vulcanization Methods 0.000 claims abstract description 52
- 239000012790 adhesive layer Substances 0.000 claims abstract description 40
- 239000011505 plaster Substances 0.000 claims description 40
- 239000000853 adhesive Substances 0.000 claims description 26
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 16
- 239000005060 rubber Substances 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 8
- 239000011241 protective layer Substances 0.000 claims description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000005304 joining Methods 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 description 45
- 239000000463 material Substances 0.000 description 6
- 239000002346 layers by function Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920001195 polyisoprene Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012260 resinous material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014221253.7A DE102014221253A1 (en) | 2014-10-20 | 2014-10-20 | Self-adhesive film for fixing an elastomer plaster and method for repairing a motor vehicle tire or for joining two layers of an elastomeric lining |
PCT/EP2015/074224 WO2016062696A1 (en) | 2014-10-20 | 2015-10-20 | Self-adhesive film for fixing an elastomer patch and method for repairing a motor vehicle tire or for connecting two layers of an elastomer lining |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3209741A1 true EP3209741A1 (en) | 2017-08-30 |
Family
ID=54337273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15781936.8A Withdrawn EP3209741A1 (en) | 2014-10-20 | 2015-10-20 | Self-adhesive film for fixing an elastomer patch and method for repairing a motor vehicle tire or for connecting two layers of an elastomer lining |
Country Status (6)
Country | Link |
---|---|
US (1) | US20170335143A1 (en) |
EP (1) | EP3209741A1 (en) |
CN (1) | CN107107495A (en) |
BR (1) | BR112017007989A2 (en) |
DE (1) | DE102014221253A1 (en) |
WO (1) | WO2016062696A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017221648A1 (en) | 2017-12-01 | 2019-06-06 | Continental Reifen Deutschland Gmbh | A method of repairing a recess in a tire portion of a vehicle tire |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1469054A2 (en) * | 2003-04-17 | 2004-10-20 | tesa AG | Self-adhesive foil for temporarily protecting vehicle paints |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2833327A (en) * | 1953-08-28 | 1958-05-06 | Boyce Reginald Donovan | Adhesive repair patches |
DE1183669B (en) * | 1956-03-07 | 1964-12-17 | Hans Ziller | Process and adhesive film for repairing rubber conveyor belts by means of cold vulcanization |
US3285314A (en) * | 1963-02-04 | 1966-11-15 | Goodyear Tire & Rubber | Method of making a light colored sidewall tire and article produced thereby |
DE3926946A1 (en) * | 1989-07-06 | 1991-01-10 | Stahlgruber Gruber & Co Otto | Repairing damage in rubber articles - by hot pressing cleaned affected area between natural rubber repair patch |
JP2519491Y2 (en) * | 1992-05-25 | 1996-12-04 | 住友ゴム工業株式会社 | Label label for rubber tires and label material |
DE10116771A1 (en) * | 2001-04-04 | 2002-10-10 | Tesa Ag | A temporary self-adhesive film with a second film as carrier, coated with adhesive composition on one side useful for residue-free temporary protection of painted automobiles |
JP4915920B2 (en) * | 2004-12-27 | 2012-04-11 | リンテック株式会社 | Tire adhesive sheet |
US7419557B2 (en) * | 2005-09-08 | 2008-09-02 | The Goodyear Tire & Rubber Company | Method for protecting tire innerliner using thermoformable film coated with pressure-sensitive adhesive |
US10035313B2 (en) * | 2007-11-29 | 2018-07-31 | Compagnie Generale Des Etablissements Michelin | Tire repair patch |
MX337378B (en) * | 2008-09-10 | 2016-03-02 | Michelin Rech Tech | Integrated reinforcement patch. |
DE102009050899A1 (en) * | 2009-10-27 | 2011-04-28 | Rema Tip Top Gmbh | Repair plaster for an elastomeric component, in particular for a vehicle tire, with increased adhesive strength |
DE102013224153A1 (en) * | 2013-11-26 | 2015-05-28 | Rema Tip Top Ag | repair patches |
-
2014
- 2014-10-20 DE DE102014221253.7A patent/DE102014221253A1/en not_active Ceased
-
2015
- 2015-10-20 BR BR112017007989A patent/BR112017007989A2/en not_active IP Right Cessation
- 2015-10-20 EP EP15781936.8A patent/EP3209741A1/en not_active Withdrawn
- 2015-10-20 WO PCT/EP2015/074224 patent/WO2016062696A1/en active Application Filing
- 2015-10-20 US US15/520,258 patent/US20170335143A1/en not_active Abandoned
- 2015-10-20 CN CN201580056842.1A patent/CN107107495A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1469054A2 (en) * | 2003-04-17 | 2004-10-20 | tesa AG | Self-adhesive foil for temporarily protecting vehicle paints |
Non-Patent Citations (1)
Title |
---|
See also references of WO2016062696A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20170335143A1 (en) | 2017-11-23 |
BR112017007989A2 (en) | 2017-12-19 |
WO2016062696A1 (en) | 2016-04-28 |
DE102014221253A1 (en) | 2016-04-21 |
CN107107495A (en) | 2017-08-29 |
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