DE10157123A1 - Pneumatic tire or inner tube for a vehicle consists in part of a self-repairing plastic material - Google Patents

Pneumatic tire or inner tube for a vehicle consists in part of a self-repairing plastic material

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Publication number
DE10157123A1
DE10157123A1 DE2001157123 DE10157123A DE10157123A1 DE 10157123 A1 DE10157123 A1 DE 10157123A1 DE 2001157123 DE2001157123 DE 2001157123 DE 10157123 A DE10157123 A DE 10157123A DE 10157123 A1 DE10157123 A1 DE 10157123A1
Authority
DE
Germany
Prior art keywords
pneumatic tire
inner tube
self
plastic
plastic material
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Withdrawn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
DE2001157123
Other languages
German (de)
Inventor
Petra Frieser
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE2001157123 priority Critical patent/DE10157123A1/en
Publication of DE10157123A1 publication Critical patent/DE10157123A1/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0681Parts of pneumatic tyres; accessories, auxiliary operations
    • B29D30/0685Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00Repairing 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
    • B29C73/16Auto-repairing or self-sealing arrangements or agents
    • B29C73/22Auto-repairing or self-sealing arrangements or agents the article containing elements including a sealing composition, e.g. powder being liberated when the article is damaged
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C5/00Inflatable pneumatic tyres or inner tubes
    • B60C5/02Inflatable pneumatic tyres or inner tubes having separate inflatable inserts, e.g. with inner tubes; Means for lubricating, venting, preventing relative movement between tyre and inner tube
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0681Parts of pneumatic tyres; accessories, auxiliary operations
    • B29D30/0685Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
    • B29D2030/0686Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre
    • B29D2030/0689Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre by incorporating the sealant into a plurality of chambers, e.g. bags, cells, tubes or closed cavities
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0681Parts of pneumatic tyres; accessories, auxiliary operations
    • B29D30/0685Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
    • B29D2030/0686Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre
    • B29D2030/0693Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre the sealant being in the form of discrete particles, e.g. spheres or balls, filled with sealant
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0681Parts of pneumatic tyres; accessories, auxiliary operations
    • B29D30/0685Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
    • B29D2030/0686Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre
    • B29D2030/0695Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre the sealant being in the form of one wide strip, e.g. a patch
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00Pneumatic or solid tyres or parts thereof

Abstract

The pneumatic tire or the inner tube for a vehicle consists at least in parts of a self-repairing plastic material.

Description

Die Erfindung betrifft aufblasbare Luftreifen oder Luftschläuche für Fahrzeuge. The invention relates to inflatable pneumatic tires or inner tubes for vehicles.

Derartige Luftreifen oder Luftschläuche kommen beispielsweise bei Fahrrädern, Mopeds, Motorrädern, aber auch bei Kraftfahrzeugen zum Einsatz. Aufblasbare Luftreifen oder Luftschläuche bestehen meist aus einer Gummimischung, in die Verstärkungseinlagen integriert sein können. Such pneumatic tires or inner tubes come for example from bicycles, Mopeds, motorcycles, but also used in motor vehicles. inflatable Pneumatic tires or inner tubes are usually made of a rubber mixture into which Reinforcing inserts can be integrated.

Nachteiligerweise kann ein solcher Luftreifen bzw. Luftschlauch leicht durch scharfe Gegenstände beschädigt werden, sodass unerwünschterweise Gas aus dem Luftreifen bzw. Luftschlauch entweichen kann. Beispielsweise kann der Luftschlauch eines Fahrrads beim Überfahren einer Glasscherbe örtlich aufgeschnitten werden, sodass der Luftschlauch sein Gas verliert. Disadvantageously, such a pneumatic tire or air tube can easily be damaged by sharp Objects are damaged, so that gas from the Pneumatic tire or air hose can escape. For example, the Air tube of a bicycle locally when driving over a broken glass be cut open so that the air hose loses its gas.

Aufgabe der Erfindung ist es, einen Luftreifen bzw. Luftschlauch zu schaffen, der nach einer Beschädigung sich selber - zumindest teilweise - repariert. The object of the invention is to provide a pneumatic tire or inner tube which after damage itself - at least partially - repaired.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. This object is achieved by the features of patent claim 1.

Erfindungsgemäß besteht ein Luftreifen bzw. Luftschlauch dazu zumindest teilweise aus einem selbstheilenden Kunststoff oder Gummi. Einen derartigen Kunststoff, der sich selbst repariert, wurde beispielsweise von Wissenschaftlern der Illinois State University entwickelt. Das Prinzip besteht darin, dass in den Kunststoff mikroskopisch kleine Kapseln eingebettet sind, die teilweise Rohstoff für den Kunststoff und teilweise Katalysatoren enthalten. Reißt das Material an einer Stelle, brechen dort die Kapseln auf: Der Rohstoff für den Kunststoff verbindet sich durch den Katalysator mit dem umgebenden Kunststoff und schließt den Riss selbstständig. Die gekitteten Risse haben 75% der Stabilität des Ursprungsmaterials. Dieses Material ist auch in der Ausgabe 04/2001 der Zeitschrift "Trendletter" beschrieben, die vom VNR Verlag für die Deutsche Wirtschaft AG, Bonn, Deutschland, herausgegeben wird. Gummimischungen und sonstige Elastomere fallen hier unter den Oberbegriff Kunststoff. According to the invention, there is a pneumatic tire or air tube, at least in part made of a self-healing plastic or rubber. Such a plastic that repaired itself, for example, by scientists from Illinois State University developed. The principle is that in the plastic microscopic capsules are embedded, some of which are raw material for the Contain plastic and some catalysts. If the material tears in one place break open the capsules there: The raw material for the plastic connects through the catalyst with the surrounding plastic and closes the crack independently. The cemented cracks have 75% of the stability of the Original material. This material is also in the 04/2001 edition of the Magazine "Trendletter" described by the VNR publishing house for the German Wirtschaft AG, Bonn, Germany. Rubber compounds and other elastomers fall under the generic term plastic.

Die Kapseln können bei Luftreifen bzw. Luftschläuchen aus Gummi alternativ auch nur ein Vulkanisationsmittel enthalten, das wie beim Flicken eines Fahrradschlauchs den Gummi an den damit benetzten Stellen vorübergehend anlöst, sodass in diesen Bereichen der Gummi anschließend neu vulkanisiert. Bei dieser erneuten Vulkanisation können beschädigte Stellen, wie Risse, repariert bzw. geschlossen werden. Auch der Einsatz von speziellen Klebstoffen in derartigen Kapseln ist gut denkbar. Alternatively, the capsules can also be used for pneumatic tires or rubber inner tubes contain only one vulcanizing agent, which is like patching one Bicycle tube temporarily loosens the rubber at the areas wetted with it, so that the rubber is then re-vulcanized in these areas. At this renewed vulcanization can repair damaged areas such as cracks or getting closed. The use of special adhesives in such Capsules are conceivable.

Fährt nun beispielsweise ein Fahrradfahrer mit seinem Fahrrad über eine Glasscherbe, sodass der Fahrradschlauch beschädigt wird, muss er nur sicherstellen, dass die Glasscherbe nicht mehr im Fahrradschlauch steckt. Durch die Elastizität geht das Material des Fahrradschlauchs an der beschädigten Stelle dann annähernd wieder in seine Ausgangslage zurück, sodass nur ein Riss bzw. ein Schnitt übrigbleibt. Der Fahrradfahrer muss so nur eine bestimmte Zeit, wie zum Beispiel ein paar Minuten, warten, bis die beschädigte Stelle des Fahrradschlauchs sich selbständig wieder repariert hat. Danach kann er den Fahrradschlauch wieder normal aufpumpen und weiterfahren. Es muss weder das entsprechende Rad am Fahrrad ausgebaut werden, noch muss mühsam der Fahrradschlauch von Hand geflickt oder ausgetauscht werden. For example, a cyclist is now riding his bike over one Broken glass, so that the bicycle tube is damaged, it only has to ensure that the broken glass is no longer in the bicycle tube. Due to the elasticity then the material of the bicycle tube goes to the damaged place almost back to its starting position, so that only one crack or one Cut remains. The cyclist only needs a certain amount of time Example a few minutes, wait for the damaged area of the bicycle tube has repaired itself independently. Then he can use the bicycle tube again Inflate normally and continue. It does not have to be the corresponding bike Bicycle must be removed, the bicycle tube must still be laboriously by hand to be patched or exchanged.

Dieses selbstheilende Material ist natürlich auch für schlauchlose Luftreifen geeignet, wie sie üblicherweise bei Kraftfahrzeugen zum Einsatz kommen. This self-healing material is of course also for tubeless pneumatic tires suitable, as they are usually used in motor vehicles.

Vorteilhafterweise ist bei Reifen, die aus einem Luftschlauch bestehen, der von einem separaten Mantel umgeben ist, der die eigentliche Lauffläche des Reifens bildet, sowohl der Luftschlauch als auch der umgebende Mantel aus dem selbstheilenden Material hergestellt. Wenn nur der Luftschlauch aus dem Material bestünde, würde eine Beschädigung im Mantel verbleiben, die immer die Gefahr einer erneuten Beschädigung des darunterliegenden Luftschlauchs an dieser Schwachstelle des schützenden Mantels in sich bergen würde. In the case of tires which consist of an air tube which is of is surrounded by a separate jacket, which is the actual tread of the tire forms, both the air hose and the surrounding jacket from the self-healing material. If only the air hose from the material if there were any damage to the jacket, there would always be danger renewed damage to the air hose underneath Vulnerability of the protective cloak.

Auch kleine Risse bzw. Beschädigungen, die aufgrund einer Versprödung des Kunststoffs bzw. Gummis im Laufe der Zeit entstehen können, reparieren sich permanent automatisch. So kann vermieden werden, dass aus einem kleinen Riss bzw. einer kleinen Beschädigung eine große Beschädigung entsteht, die die Benutzung des Luftreifens oder Luftschlauchs einschränkt oder eine Reparatur bzw. einen Austausch erforderlich macht. Idealerweise erhöht dies die Lebensdauer des Luftreifens oder Luftschlauchs. Even small cracks or damage due to embrittlement of the Plastic or rubber can develop over time, repair themselves permanently automatic. This can prevent a small crack or a small damage a large damage arises that the Restricts use of the pneumatic tire or inner tube, or repairs or an exchange is necessary. Ideally, this will increase the lifespan of the Pneumatic tire or inner tube.

Die Erfindung hat allgemein den großen Vorteil, dass die Reparatur eines beschädigten Luftreifens oder Luftschlauchs erheblich vereinfacht wird. Beispielsweise bei Bussen oder Lastkraftwagen ist normalerweise eine solche Reparatur nur auf sehr aufwendige und kraftraubende Weise möglich. Erfindungsgemäß muss nun nur ein wenig Geduld aufgebracht werden, bevor der Luftreifen oder der Luftschlauch wieder aufgepumpt werden kann. Der Reifen muss nicht einmal vom Fahrzeug demontiert werden. The invention generally has the great advantage that the repair of a damaged tire or inner tube is considerably simplified. For buses or trucks, for example, this is usually the case Repairs only possible in a very complex and exhausting manner. According to the invention, only a little patience has to be applied before the Pneumatic tires or the air tube can be inflated again. The tire has to not even be dismantled from the vehicle.

Um die Kosten eines solchen Luftreifens oder Luftschlauchs so gering wie möglich zu halten, besteht der Luftreifen oder Luftschlauch nur an den gefährdeten Bereichen aus dem selbstheilenden Material. Dies kann bei einem Luftschlauch beispielsweise der Bereich sein, der unmittelbar unter der eigentlichen Lauffläche eines Mantels zum Liegen kommt. To keep the cost of such a pneumatic tire or inner tube as low as possible to hold, the pneumatic tire or inner tube only exists on the vulnerable Areas made of self-healing material. This can be the case with an air hose for example, the area immediately below the actual tread of a coat comes to rest.

Claims (6)

1. Luftreifen oder Luftschlauch für ein Fahrzeug, dadurch gekennzeichnet, dass der Luftreifen oder Luftschlauch zumindest teilweise aus einem selbstheilenden Kunststoff besteht. 1. A pneumatic tire or inner tube for a vehicle, characterized in that the pneumatic tire or inner tube is at least partially made of a self-healing plastic. 2. Luftreifen oder Luftschlauch nach Anspruch 1, dadurch gekennzeichnet, dass in den selbstheilenden Kunststoff mikroskopisch kleine Kapseln eingebettet sind, die teilweise Rohstoff für den Kunststoff und teilweise Katalysatoren enthalten. 2. A pneumatic tire or inner tube according to claim 1, characterized in that microscopic capsules embedded in the self-healing plastic which are partly raw material for the plastic and partly catalysts contain. 3. Luftreifen oder Luftschlauch nach Anspruch 1, dadurch gekennzeichnet, dass der Luftreifen oder Luftschlauch aus Gummi besteht, in den mikroskopisch kleine Kapseln eingebettet sind, die Vulkanisationsmittel enthalten. 3. A pneumatic tire or inner tube according to claim 1, characterized in that the pneumatic tire or air tube is made of rubber, in the microscopic small capsules are embedded that contain vulcanizing agents. 4. Luftreifen oder Luftschlauch nach Anspruch 1, dadurch gekennzeichnet, dass in den selbstheilenden Kunststoff mikroskopisch kleine Kapseln eingebettet sind, die zumindest einen Klebstoff enthalten. 4. A pneumatic tire or inner tube according to claim 1, characterized in that microscopic capsules embedded in the self-healing plastic are that contain at least one adhesive. 5. Luftreifen oder Luftschlauch nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Luftreifen oder Luftschlauch für ein Fahrrad, Moped oder Motorrad, für ein Personenkraftfahrzeug, einen Bus oder einen Lastkraftwagen geeignet ist. 5. A pneumatic tire or inner tube according to one of the preceding claims, characterized in that the pneumatic tire or air tube for a Bicycle, moped or motorcycle, for a passenger car, a bus or a truck is suitable. 6. Luftschlauch nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein den Luftschlauch umgebender Mantel ebenfalls zumindest teilweise aus einem selbstheilenden Kunststoff besteht. 6. Air hose according to one of the preceding claims, characterized characterized in that a jacket surrounding the air hose also consists at least partially of a self-healing plastic.
DE2001157123 2001-11-21 2001-11-21 Pneumatic tire or inner tube for a vehicle consists in part of a self-repairing plastic material Withdrawn DE10157123A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2001157123 DE10157123A1 (en) 2001-11-21 2001-11-21 Pneumatic tire or inner tube for a vehicle consists in part of a self-repairing plastic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2001157123 DE10157123A1 (en) 2001-11-21 2001-11-21 Pneumatic tire or inner tube for a vehicle consists in part of a self-repairing plastic material

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DE10157123A1 true DE10157123A1 (en) 2003-01-23

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DE2001157123 Withdrawn DE10157123A1 (en) 2001-11-21 2001-11-21 Pneumatic tire or inner tube for a vehicle consists in part of a self-repairing plastic material

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007143475A1 (en) * 2006-06-02 2007-12-13 The Board Of Trustees Of The University Of Illinois Self-healing elastomer system
US7566747B2 (en) 2004-05-07 2009-07-28 The Board Of Trustees Of The University Of Illinois Wax particles for protection of activators, and multifunctional autonomically healing composite materials
US7612152B2 (en) 2005-05-06 2009-11-03 The Board Of Trustees Of The University Of Illinois Self-healing polymers
US7723405B2 (en) 2006-01-05 2010-05-25 The Board Of Trustees Of The University Of Illinois Self-healing coating system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7566747B2 (en) 2004-05-07 2009-07-28 The Board Of Trustees Of The University Of Illinois Wax particles for protection of activators, and multifunctional autonomically healing composite materials
US7612152B2 (en) 2005-05-06 2009-11-03 The Board Of Trustees Of The University Of Illinois Self-healing polymers
US7723405B2 (en) 2006-01-05 2010-05-25 The Board Of Trustees Of The University Of Illinois Self-healing coating system
WO2007143475A1 (en) * 2006-06-02 2007-12-13 The Board Of Trustees Of The University Of Illinois Self-healing elastomer system
US7569625B2 (en) 2006-06-02 2009-08-04 The Board Of Trustees Of The University Of Illinois Self-healing elastomer system

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