EP2134429B1 - Product for roughening the strings of tennis, badminton and squash rackets and for keeping them rough and method for producing said product - Google Patents

Product for roughening the strings of tennis, badminton and squash rackets and for keeping them rough and method for producing said product Download PDF

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Publication number
EP2134429B1
EP2134429B1 EP08733787.9A EP08733787A EP2134429B1 EP 2134429 B1 EP2134429 B1 EP 2134429B1 EP 08733787 A EP08733787 A EP 08733787A EP 2134429 B1 EP2134429 B1 EP 2134429B1
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component
strings
crystalline calcium
carbonate
tennis
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German (de)
French (fr)
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EP2134429A1 (en
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Bünyamin Sürmeci
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B51/00—Stringing tennis, badminton or like rackets; Strings therefor; Maintenance of racket strings
    • A63B51/02—Strings; String substitutes; Products applied on strings, e.g. for protection against humidity or wear

Definitions

  • the present invention relates to a means for treating the strings, that is to say the strings of tennis rackets as well as badminton and squash rackets, so that these strings have a rough surface. Such a rough surface is particularly important for making punches which are supposed to impart a spin or spin to the ball.
  • the invention relates to the process for the preparation of this agent.
  • Tennis has undergone a rapid development in recent years, during which the game dynamics as well as the speed of the game has increased enormously. The same applies to related games such as badminton and squash.
  • the tennis rackets are exposed to great stress. Professional players only use a racket for a single game.
  • the freshly wound strings of a tennis racket stringing are grainy and rough. They make it possible to impart a spin by cutting the ball to be played. Only with a rough surface of the clothing, a force component can be transmitted to the ball, which acts approximately transversely to the trajectory and along the Covering runs.
  • the roughness of a racquet string decreases quickly due to the wear of the strings.
  • DE 32 18 899 A1 discloses a stringing of tennis or squash rackets in which a coating is applied, which consists of an adhesive material and particles embedded therein, for example those of edge-like shape of metallic, mineral, organic or inorganic particles, for example silicon carbide, in one Coating of vulcanized rubber particles or soft plastic particles are embedded.
  • a coating which consists of an adhesive material and particles embedded therein, for example those of edge-like shape of metallic, mineral, organic or inorganic particles, for example silicon carbide, in one Coating of vulcanized rubber particles or soft plastic particles are embedded.
  • a curing plastic is proposed as an adhesive material.
  • US 4,238,262 is a method and apparatus for conditioning the surface of racquet strings disclosed in which first a primer as Adhesive is applied as a coating on the strings.
  • a granular substance for example white quartz, is comminuted to 0.508 mm (1/50 inch) so that about cubic, edged Kleinteilchen arise. These are sprinkled on the adhesive from which the small parts are edged, and then allowed to cure this coating, after which it helps to improved ball guidance.
  • US 3,920,658 A discloses a tennis racket whose covering is coated with a resin or an elastomeric material, for example a natural or synthetic rubber, urethane rubber, a high density urethane foam, polyvinylchloride or similar material. To increase the friction with a ball played on it, a fine granular material is added to this coating. As a granular material, fine silica sands are proposed.
  • EP 1 081 270 A proposes a specific coated fabric in which a first coating of fluoropolymer having polar functional groups is applied, and a second coating of non-polar functional group polymer which comprises the first coating. These coatings are preferably amorphous and about 0.01 to 10 microns thick.
  • EP 0 911 347 A various polymers which are suitable, inter alia, for coatings. They contain at least hexafluoropropylenes, as well as one or more tetrafluoroethylenes, vinyl fluorides, trifluoroethylines, ethylenes, chlorotrifluoroethylenes and vinylidene fluorides, and further maleic anhydrides, maleic acid, dichloromaleic anhydrides or dichloromaleic acid. Such polymers can be applied as coatings on tennis racket fabrics.
  • the coverings are to be spared by this means and therefore longer lasting.
  • a means of space and roughening tennis, badminton and squash racket fabrics comprising a first and a second component, the first component being a marble-based crystalline filler, namely a crystalline calcium carbonate filler, a finely crystalline calcium Magnesium carbonate filler, or a combination of crystalline calcium carbonate filler and finely crystalline calcium magnesium carbonate filler, wherein the first component is a granular mass whose grains are sharp-edged, and wherein the second component is a binder having adhesive properties a higher melting, Maleinatharz as dispersing resin, which is soluble in alcohol and after neutralization in water.
  • the method of making a means of making tennis racquets, badminton and squash rackets clean and sound is characterized by mixing a second component in at least as much water and stirring it for a few hours, after which the mixture is cooled to room temperature, and then added at least equal to a first component as previously from the second component and stirred until a homogeneous mixture is achieved, the first component being a marble-based crystalline filler, namely a crystalline calcium carbonate filler, a finely crystalline calcium-magnesium carbonate.
  • Adhesive properties is, namely a higher melting, Maleinatharz as a dispersing resin, which is soluble in alcohol and after neutralization in water.
  • the agent contains a granular mass whose grains are sharp-edged and have a high hardness, which ensures that these sharp body edges remain sharp as long as possible even under stress. Furthermore, the agent contains an adhesion promoter which ensures that the grains are embedded and held therein, and that an intimate and strong connection with the surface of the strings is produced, which also stops under stress and is durable.
  • Saxolith is basically a crystalline calcium carbonate filler containing marble. It is available in different types and grits, according to the following table: Saxolith 2 HE Saxolith 5 HE Saxolith 8 HE Saxolith 10 HE granulation 0-11mm 0-27mm 0-38mm 0-60mm Saxolith 2 LE Saxolith 5 LE Saxolite 8 LE Saxolite 10 LE granulation 0-11 mm 0-27mm 0-38mm 0-60mm
  • each of these types is suitable for achieving the desired roughness.
  • the saxolite To apply this saxolite to the strings of a string, the saxolite must be introduced into a bonding agent, for example in the form of a viscous liquid or a pasty mass, which can be applied to the strings afterwards and which has a strong adhesive bond with the Ensures string surface.
  • a bonding agent for example in the form of a viscous liquid or a pasty mass, which can be applied to the strings afterwards and which has a strong adhesive bond with the Ensures string surface.
  • a bonding agent for example in the form of a viscous liquid or a pasty mass, which can be applied to the strings afterwards and which has a strong adhesive bond with the Ensures string surface.
  • a bonding agent in the form of a resin, more precisely a higher-melting dispersion resin with pigment coating, which is soluble in alcohol and after neutralization in water.
  • Second Erkamar is mixed in at least as much water and stirred for a few hours. Take about 2 parts Erkamar and mix it with about 3 parts of water. Then the mixture is stirred for a few hours, at least for four hours. The mixture heats up. Once a homogeneous mixture is achieved, allow to cool to room temperature. Only then does the intermixing of saxolite, at least in turn 2 parts, but preferably about 2.5 parts. Then it is stirred again until a homogeneous mixture of the saxolite is achieved with the liquid bonding agent.
  • the agent is in the form of a liquid, whitish to ocher anti-slip and is ready to order on the strings of a racquet clothing.
  • the application can be easily done with a brush until all the string surfaces are covered and enclosed by the medium. Afterwards, the paint is allowed to dry completely.
  • the usual measures should be observed when handling chemicals. Protective gloves should be worn as precautionary measures and goggles or face shield should be worn. A respiratory protection is not necessary. This anti-slag should not be stored below 0 ° C.
  • the grain size as well as the composition of the saxolith portion can be varied as desired within their total proportion of the mixture.
  • This anti-slag can then be brushed with a brush on the strings of a string, until the strings are wrapped around him on all sides and are thus sheathed. Then you let the paint dry and right cure what is best done overnight. The next day the racquet or the badminton or squash racket is ready to play. By painting the string surfaces are rough and remain rough for many hours of play. When this coating on the strings finally wears out, the tension can simply be repainted. You then only spreads those parts of the clothing that are worn out, ie predominantly the area around the center of the clothing, and this can be repeated many times if necessary, until the strings have lost their elasticity and replaced the clothing or even the whole racket anyway must become.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Description

Die vorliegende Erfindung betrifft ein Mittel, um die Bespannung, das heisst die Saiten von Tennisrackets sowie Badminton- und Squash-Schlägern zu behandeln, sodass dieses Saiten eine raue Oberfläche aufweisen. Eine solche raue Oberfläche ist besonders wesentlich für das Ausführen von Schlägen, welche dem Ball einen Drall oder Spin verleihen sollen. Ausserdem betrifft die Erfindung das Verfahren zur Herstellung dieses Mittels.The present invention relates to a means for treating the strings, that is to say the strings of tennis rackets as well as badminton and squash rackets, so that these strings have a rough surface. Such a rough surface is particularly important for making punches which are supposed to impart a spin or spin to the ball. In addition, the invention relates to the process for the preparation of this agent.

Der Tennissport hat in den letzten Jahren eine rasante Entwicklung durchgemacht, im Rahmen derer die Spieldynamik wie auch die Schnelligkeit des Spiels enorm zugenommen hat. Ähnliches gilt auch für verwandte Spielarten wie Badminton und Squash. Die Tennisrackets sind dabei einer grossen Beanspruchung ausgesetzt. Professionelle Spieler benützen ein Racket bloss für ein einziges Spiel. Die frisch aufgezogenen Saiten einer Tennis-Racket-Bespannung sind nämlich körnig und rau. Sie ermöglichen es, durch das Anschneiden des abzuspielenden Balles demselben einen Drall mitzugeben. Nur mit einer rauen Oberfläche der Bespannung kann eine Kraftkomponente auf den Ball übertragen werden, die etwa quer zur Flugbahn wirkt und längs der Bespannung verläuft. Die Rauheit einer Racket-Bespannung lässt jedoch durch die Abnützung der Saiten rasch nach. Je öfter mit Drall gespielt wird, was bei fortgeschrittenen Spielern häufiger der Fall ist, umso rascher werden die Saiten glatt und damit für ein entsprechend anspruchsvolles Spiel stumpf. Während die Profispieler deshalb für jeden Match auf ein frisch gespanntes Racket zurückgreifen, ist das den vielen Amateur- und Hobbyspielern zu aufwändig und zu teuer. Trotzdem besteht natürlich auch bei den Amateurspielern der Wunsch, über ein optimales Racket zu verfügen. Mit einem neuen Tennisracket lässt sich nachweisbar um eine Kategorie besser spielen als mit einem Racket mit ermüdeter und stumpfer Bespannung. Das Gleiche gilt auch für die Schläger zum Spielen von Badminton und Squash.Tennis has undergone a rapid development in recent years, during which the game dynamics as well as the speed of the game has increased enormously. The same applies to related games such as badminton and squash. The tennis rackets are exposed to great stress. Professional players only use a racket for a single game. The freshly wound strings of a tennis racket stringing are grainy and rough. They make it possible to impart a spin by cutting the ball to be played. Only with a rough surface of the clothing, a force component can be transmitted to the ball, which acts approximately transversely to the trajectory and along the Covering runs. The roughness of a racquet string, however, decreases quickly due to the wear of the strings. The more you play with spin, which is more common in advanced players, the faster the strings become smooth and dull for a suitably challenging game. While the professional players therefore resort to a freshly stretched racket for each match, this is too much and too expensive for the many amateur and amateur players. Nevertheless, of course, there is also a desire among amateur players to have an optimal racquet. With a new tennis racket you can demonstrably play around a category better than with a racket with tired and blunt clothing. The same goes for the rackets for playing badminton and squash.

In der Patentliteratur finden sich verschiedene Vorschläge zum Raumachen und Rauhalten von Schläger-Bespannungen für Tennis, Badminton und Squash sowie auch Verfahren zur Herstellung der entsprechenden Mittel. So ist aus WO97/40228 A ein Beschichtungsmittel zur Verbesserung der Ballführung mit einem Tennis-, Squash- oder Badminton-Schläger bekannt, bestehend aus einer Lösung eines rezenten oder fossilen Harzes in einer Konzentration von 1-50 % (g/ml) in einem niedrigsiedenden organischen Lösemittel. Dieses Beschichtungsmittel wird vorzugsweise als Spray auf die Bespannung aufgetragen, wobei aber auch ein Auftrag mittels eines Pinsels vorgesehen ist, und anschliesst lässt man das Beschichtungsmittel trocknen.In the patent literature, there are various proposals for Raumachen and Rauhalten of rackets for tennis, badminton and squash, as well as processes for the preparation of the corresponding funds. That's how it is WO97 / 40228 A a coating agent for improving the ball guidance with a tennis, squash or badminton racquet, consisting of a solution of a recent or fossil resin in a concentration of 1-50% (g / ml) in a low-boiling organic solvent. This coating composition is preferably applied to the fabric as a spray, but also an application by means of a brush is provided, and then the coating composition is allowed to dry.

DE 32 18 899 A1 offenbart eine Saitenbespannung von Tennis- oder Squashschlägern, bei welcher eine Beschichtung aufgebracht ist, die aus einem haftfähigen Material und darin eingebetteten Teilchen besteht, zum Beispiel solche von kantenförmiger Gestalt aus metallischen, mineralischen, organischen oder anorganischen Teilchen, zum Beispiel Siliciumcarbid, die in einer Beschichtung aus vulkanisierten Gummiteilchen oder Weichkunststoff-Teilchen eingebettet sind. Als haftfähiges Material wird ein aushärtender Kunststoff vorgeschlagen. DE 32 18 899 A1 discloses a stringing of tennis or squash rackets in which a coating is applied, which consists of an adhesive material and particles embedded therein, for example those of edge-like shape of metallic, mineral, organic or inorganic particles, for example silicon carbide, in one Coating of vulcanized rubber particles or soft plastic particles are embedded. As an adhesive material, a curing plastic is proposed.

In US 4 238 262 ist eine Methode und ein Gerät zum Konditionieren der Oberfläche von Schlägersaiten offenbart, bei welcher zunächst ein Primer als Adhäsiv als Beschichtung auf die Saiten aufgetragen wird. Eine Granulat-Substanz, zum Beispiel weisses Quartz, wird bis auf 0.508 mm (1/50 Inch) zerkleinert sodass etwa kubische, kantige Kleinteilchen entstehen. Diese werden auf das Adhäsiv gestreut, von welchem die Kleinteile eingefasst werden, und dann lässt man diese Beschichtung aushärten, wonach sie zu einer verbesserten Ballführung verhilft.In US 4,238,262 is a method and apparatus for conditioning the surface of racquet strings disclosed in which first a primer as Adhesive is applied as a coating on the strings. A granular substance, for example white quartz, is comminuted to 0.508 mm (1/50 inch) so that about cubic, edged Kleinteilchen arise. These are sprinkled on the adhesive from which the small parts are edged, and then allowed to cure this coating, after which it helps to improved ball guidance.

US 3 920 658 A offenbart ein Tennisracket, dessen Bespannung mit einem Harz oder einem elastomeren Material beschichtet ist, zum Beispiel mit einem natürlichen oder synthetischen Gummi, mit Urethan-Gummi, einem hochdichten Urethan-Schaum, Polyvinylchloride oder einem ähnlichen Material. Zur Erhöhung der Friktion mit einem darauf gespielten Ball wird dieser Beschichtung ein feines granulares Material beigegeben. Als granulares Material werden feine Silikasande vorgeschlagen. US 3,920,658 A discloses a tennis racket whose covering is coated with a resin or an elastomeric material, for example a natural or synthetic rubber, urethane rubber, a high density urethane foam, polyvinylchloride or similar material. To increase the friction with a ball played on it, a fine granular material is added to this coating. As a granular material, fine silica sands are proposed.

EP 1 081 270 A schlägt eine spezifische beschichtete Bespannung vor, bei welcher eine erste Beschichtung aus Fluoropolymer mit polaren funktionalen Gruppen aufgetragen ist, und eine zweite Beschichtung aus Floropolymer mit nicht-polaren funktionalen Gruppen, welche die erste Beschichtung umfasst. Diese Beschichtungen sind vorzugsweise amorph und ca. 0.01 bis 10 µm dick. EP 1 081 270 A proposes a specific coated fabric in which a first coating of fluoropolymer having polar functional groups is applied, and a second coating of non-polar functional group polymer which comprises the first coating. These coatings are preferably amorphous and about 0.01 to 10 microns thick.

Schliesslich offenbart EP 0 911 347 A verschiedene Polymere, die unter anderem für Beschichtungen geeignet sind. Sie enthalten wenigstens Hexafluoropropylene, sowie eines oder mehrere Tetrafluoroethylene, Vinylfluoride, Trifluoroethyline, Ethylene, Chlorotrifluoroethylene und Vinylidene Fluroide, und weiter Malein Anhydride, Maleinsäure, Dichloromaleine Anhydride oder Dichloromaleinsäure. Solche Polymere können als Beschichtungen auf Tennisracket-Bespannungen aufgetragen werden.Finally disclosed EP 0 911 347 A various polymers which are suitable, inter alia, for coatings. They contain at least hexafluoropropylenes, as well as one or more tetrafluoroethylenes, vinyl fluorides, trifluoroethylines, ethylenes, chlorotrifluoroethylenes and vinylidene fluorides, and further maleic anhydrides, maleic acid, dichloromaleic anhydrides or dichloromaleic acid. Such polymers can be applied as coatings on tennis racket fabrics.

Die bisher bekannten Mittel sind jedoch entweder aufwändig in der Herstellung und/oder aufwändig für das Beschichten der Bespannungen, oder aber sie sind zu wenig wirkungsvoll oder ihre Wirkung ist von zu kurzer Dauer.However, the previously known agents are either expensive to manufacture and / or expensive for coating the fabrics, or they are not effective enough or their effect is too short a duration.

Es ist deshalb die Aufgabe dieser Erfindung, ein Mittel zum Raumachen und Rauhalten von Schläger-Bespannungen für Tennis, Badminton und Squash anzugeben, wobei dieses Mittel einfach und sicher anzuwenden sein soll und die Saiten der Bespannungen über längere Zeitperiode rau halten soll, sodass von einem bestimmten Spieler eine grössere Schlagkraft entfaltet werden kann und höhere Spins geschlagen werden können. Die Bespannungen sollen durch dieses Mittel geschont und daher langlebiger werden. Ausserdem ist es eine Aufgabe der Erfindung, das Verfahren zur Herstellung dieses Mittels anzugeben.It is therefore an object of this invention to provide a means for Raumachen and Rauhalten of rackets for tennis, badminton and squash, this means should be easy and safe to use and should keep the strings of clothing over a long period of rough, so from a certain players can be deployed a greater clout and higher spins can be hit. The coverings are to be spared by this means and therefore longer lasting. In addition, it is an object of the invention to provide the process for the preparation of this agent.

Diese Aufgabe wird gelöst von einem Mittel zum Raumachen und Rauhalten von Schläger-Bespannungen für Tennis, Badminton und Squash, umfassend eine erste und eine zweite Komponente, wobei die erste Komponente ein kristalliner Füllstoff auf Marmorbasis ist, und zwar ein kristalliner Calciumcarbonatfüllstoff, ein feinkristalliner Calcium-Magnesium-Carbonat-Füllstoff, oder eine Kombination aus kristallinem Calciumcarbonatfüllstoff und feinkristallinem Calcium-Magnesium-Carbonat-Füllstoff, wobei die erste Komponente eine körnige Masse ist, deren Körner scharfkantig sind, und wobei die zweite Komponente ein Bindemittel mit Hafteigenschaften ist, und zwar ein höherschmelzendes, Maleinatharz als Dispergierharz, das in Alkohol und nach Neutralisation auch in Wasser löslich ist.This object is achieved by a means of space and roughening tennis, badminton and squash racket fabrics comprising a first and a second component, the first component being a marble-based crystalline filler, namely a crystalline calcium carbonate filler, a finely crystalline calcium Magnesium carbonate filler, or a combination of crystalline calcium carbonate filler and finely crystalline calcium magnesium carbonate filler, wherein the first component is a granular mass whose grains are sharp-edged, and wherein the second component is a binder having adhesive properties a higher melting, Maleinatharz as dispersing resin, which is soluble in alcohol and after neutralization in water.

Das Verfahren zur Herstellung eines Mittel zum Raumachen und Rauhalten von Schläger-Bespannungen für Tennis, Badminton und Squash, zeichnet sich dadurch aus, dass eine zweite Komponente in mindestens ebensoviel Wasser gemischt und einige Stunden gerührt wird, hernach die Mischung auf Raumtemperatur abgekühlt wird, und dann mindestens gleichviel von einer ersten Komponente wie vorher von der zweiter Komponente zugegeben und umgerührt wird, bis eine homogene Mischung erzielt ist, wobei die erste Komponente ein kristalliner Füllstoff auf Marmorbasis ist, und zwar ein kristalliner Calciumcarbonatfüllstoff, ein feinkristalliner Calcium-Magnesium-Carbonat-Füllstoff, oder eine Kombination aus kristallinem Calciumcarbonatfüllstoff und feinkristallinem Calcium-Magnesium-Carbonat-Füllstoff, wobei die erste Komponente eine körnige Masse ist, deren Körner scharfkantig sind, und wobei die zweite Komponente ein Bindemittel mit Hafteigenschaften ist, und zwar ein höherschmelzendes, Maleinatharz als Dispergierharz, das in Alkohol und nach Neutralisation auch in Wasser löslich ist.The method of making a means of making tennis racquets, badminton and squash rackets clean and sound is characterized by mixing a second component in at least as much water and stirring it for a few hours, after which the mixture is cooled to room temperature, and then added at least equal to a first component as previously from the second component and stirred until a homogeneous mixture is achieved, the first component being a marble-based crystalline filler, namely a crystalline calcium carbonate filler, a finely crystalline calcium-magnesium carbonate. A filler, or a combination of crystalline calcium carbonate filler and finely crystalline calcium magnesium carbonate filler, wherein the first component is a granular mass whose grains are sharp-edged, and wherein the second component comprises a binder Adhesive properties is, namely a higher melting, Maleinatharz as a dispersing resin, which is soluble in alcohol and after neutralization in water.

Im Folgenden wird das Verfahren und das damit erzeugte Mittel anhand von Ausführungsbeispielen offenbart. Als wesentliche Komponenten enthält das Mittel eine körnige Masse, deren Körner scharfkantig sind und eine grosse Härte aufweisen, die sicherstellt, dass diese scharfen Körperkanten auch bei Beanspruchung möglichst lange scharf bleiben. Des Weiteren enthält das Mittel einen Haftvermittler, der sicherstellt, dass die Körner in demselben eingebettet und gehalten sind, und dass eine innige und starke Verbindung mit der Oberfläche der Saiten entsteht, welche auch unter Beanspruchung anhält und dauerhaft ist.In the following, the method and the means produced therewith are disclosed by means of exemplary embodiments. As essential components, the agent contains a granular mass whose grains are sharp-edged and have a high hardness, which ensures that these sharp body edges remain sharp as long as possible even under stress. Furthermore, the agent contains an adhesion promoter which ensures that the grains are embedded and held therein, and that an intimate and strong connection with the surface of the strings is produced, which also stops under stress and is durable.

Hierzu hat sich gezeigt, dass sich Saxolith als vorteilhaftes Mittel zur Beschaffung und Sicherstellung der Rauheit erweist. Bei Saxolith handelt es sich grundsätzlich um einen kristallinen Calciumcarbonatfüllstoff, der Marmor enthält. Er ist in verschiedenen Typen und Körnungen erhältlich, gemäss folgender Tabelle: Saxolith 2 HE Saxolith 5 HE Saxolith 8 HE Saxolith 10 HE Körnung 0-11mm 0-27mm 0-38mm 0-60mm Saxolith 2 LE Saxolith 5 LE Saxolith 8 LE Saxolith 10 LE Körnung 0-11 mm 0-27mm 0-38mm 0-60mm For this purpose, it has been shown that saxolite proves to be an advantageous means of obtaining and ensuring the roughness. Saxolith is basically a crystalline calcium carbonate filler containing marble. It is available in different types and grits, according to the following table: Saxolith 2 HE Saxolith 5 HE Saxolith 8 HE Saxolith 10 HE granulation 0-11mm 0-27mm 0-38mm 0-60mm Saxolith 2 LE Saxolith 5 LE Saxolite 8 LE Saxolite 10 LE granulation 0-11 mm 0-27mm 0-38mm 0-60mm

Grundsätzlich eignet sich jeder dieser Typen zur Erzielung der gewünschten Rauheit. Durch Zusammenmischung verschiedener Typen lässt sich sogar eine gezielte Mischung herstellen, wobei nicht überraschend gilt, dass, je rauer die Saitenoberflächen werden, umso weniger dauerhaft deren Rauheit ist.In principle, each of these types is suitable for achieving the desired roughness. By blending different types, you can even create a specific mix, and it is not surprising that the rougher the string surfaces are, the less durable their roughness is.

Zum Aufbringen dieses Saxoliths auf die Saiten einer Bespannung muss der Saxolith in einen Haftvermittler eingebracht werden, zum Beispiel in Form einer viskosen Flüssigkeit oder einer pastösen Masse, die hernach auf die Saiten aufgebracht werden kann und die eine starke Haftverbindung mit der Saitenoberfläche sicherstellt. Als vorteilhaftes Bindemittel mit Hafteigenschaften erweist sich Erkamar. Dabei handelt es sich um einen Haftvermittler in Form eines Harzes, genauer um einen höherschmelzenden Dispergierharz mit Pigmentbelegung, der in Alkohol und nach Neutralisation auch in Wasser löslich ist.To apply this saxolite to the strings of a string, the saxolite must be introduced into a bonding agent, for example in the form of a viscous liquid or a pasty mass, which can be applied to the strings afterwards and which has a strong adhesive bond with the Ensures string surface. As an advantageous binder with adhesive properties Erkamar proves. This is a bonding agent in the form of a resin, more precisely a higher-melting dispersion resin with pigment coating, which is soluble in alcohol and after neutralization in water.

Um das Mittel zum Raumachen und Rauhalten der Saiten herzustellen, wird wie folgt vorgegangen: Zunächst wird Erkamar in mindestens ebensoviel Wasser gemischt und einige Stunden gerührt. Man nimmt ca. 2 Teile Erkamar und mischt es mit ca. 3 Teilen Wasser. Dann wird die Mischung während einiger Stunden gerührt, mindestens während vier Stunden. Die Mischung erwärmt sich dabei. Sobald eine homogene Mischung erzielt ist, lässt man sie auf Raumtemperatur abkühlen. Erst dann erfolgt das Untermischen von Saxolith, mindestens wiederum 2 Teile, vorzugsweise jedoch ca. 2.5 Teile. Dann wird erneut gerührt, bis eine homogene Mischung des Saxolith mit dem flüssigen Haftvermittler erzielt ist. Danach liegt das Mittel in Form eines flüssigen, weisslich bis ockerfarbigen Antirutschlacks vor und ist bereit zum Auftrag auf die Saiten einer Schlägerbespannung. Das Auftragen kann ganz einfach mit einem Pinsel erfolgen, bis alle Saitenoberflächen vom Mittel bedeckt und umschlossen sind. Hernach lässt man den Anstrich völlig austrocknen. Im Umgang mit diesem wässrigen Anstrichmittel bzw. -lack sollten die üblichen Massnahmen beim Umgang mit Chemikalien beachtet werden. Als Vorsichtsmassnahmen sollen Schutzhandschuhe getragen werden und eine Schutzbrille oder ein Gesichtsschutz sollte getragen werden. Ein Atemschutz ist allerdings nicht nötig. Dieser Antirutschlack sollte nicht unter 0°C gelagert werden.To make the means to make room and rough the strings, proceed as follows: First Erkamar is mixed in at least as much water and stirred for a few hours. Take about 2 parts Erkamar and mix it with about 3 parts of water. Then the mixture is stirred for a few hours, at least for four hours. The mixture heats up. Once a homogeneous mixture is achieved, allow to cool to room temperature. Only then does the intermixing of saxolite, at least in turn 2 parts, but preferably about 2.5 parts. Then it is stirred again until a homogeneous mixture of the saxolite is achieved with the liquid bonding agent. Thereafter, the agent is in the form of a liquid, whitish to ocher anti-slip and is ready to order on the strings of a racquet clothing. The application can be easily done with a brush until all the string surfaces are covered and enclosed by the medium. Afterwards, the paint is allowed to dry completely. When handling this aqueous paint or varnish, the usual measures should be observed when handling chemicals. Protective gloves should be worn as precautionary measures and goggles or face shield should be worn. A respiratory protection is not necessary. This anti-slag should not be stored below 0 ° C.

Eine besonders wirksame Mischung und deren Herstellung ist nachfolgend angegeben. Sie enthält:

  • Saxolith HE, besteht aus kristallinen Calciumcarbonatfüllstoffen (Marmor),
  • Saxolith LE, besteht aus feinkristallinen Calcium-Magnesium-Carbonatfüllstoffen (Dolomitmarmor),
  • Dimethylethanolamin, dient zur besseren Harzlösung und zum Stabilisieren des pH-Wertes,
  • Isopropanol, dient als Verdünnungsmittel, also zum Verändern der Viskosität,
  • Erkamar, dient als Bindemittel mit Hafteigenschaften und stellt die Haftung auf den Saiten einer Bespannung sicher,
  • Sipernat, dient zur Verbesserung der Fliesseigenschaften, sodass das Mittel leicht auftragbar ist und ein schön gleichmässiger Auftrag auf der Bespannung erreicht wird,
  • Agitan ist ein Entschäumer und Verdichtungsmittel und ermöglicht es, die Konsistenz in gewünschter Weise zu verändern,
  • Byk verbessert das Fliessverhalten und wirkt gleichzeitig als Füllstoff.
A particularly effective mixture and its preparation is given below. It contains:
  • Saxolith HE, consists of crystalline calcium carbonate fillers (marble),
  • Saxolith LE, consists of finely crystalline calcium magnesium carbonate fillers (dolomite marble),
  • Dimethylethanolamine, serves for better resin solution and for stabilizing the pH,
  • Isopropanol, serves as a diluent, so to change the viscosity,
  • Erkamar, serves as a binder with adhesive properties and ensures the adhesion to the strings of a string,
  • Sipernat, serves to improve the flow properties, so that the agent is easy to apply and a nice uniform order is achieved on the clothing,
  • Agitan is a defoamer and compaction agent and allows you to change the consistency in the desired manner,
  • Byk improves the flow and at the same time acts as a filler.

Soll eine Menge von 100kg Antirutschlack mit diesen Komponenten hergestellt werden, so kommt folgendes Verfahren zur Anwendung: Zunächst wird eine Mischung aus folgenden Komponenten angesetzt:

  • 30.4 kg Wasser
  • 8.1 kg Dimethylethanolamin
  • 6 kg Isopropanol
  • 22.5 kg Erkamar 3280
Diese 69.5 kg-Mischung wird nun während 5 bis 6 Stunden maschinell umgerührt, bis eine schön homogene Mischung erzielt ist. Während des Umrührens erwärmt sich die Mischung, weswegen sie nach dem Umrühren für etwa 24 Stunden stehengelassen wird, damit sie wieder auf Raumtemperatur abkühlt.If an amount of 100kg anti-slag is to be produced with these components, the following procedure is used: First, a mixture of the following components is used:
  • 30.4 kg of water
  • 8.1 kg of dimethylethanolamine
  • 6 kg of isopropanol
  • 22.5 kg Erkamar 3280
This 69.5 kg mixture is then stirred mechanically for 5 to 6 hours until a nice homogeneous mixture is achieved. While stirring, the mixture heats up and, after stirring, it is allowed to stand for about 24 hours to cool back to room temperature.

Hernach, das heisst meistens am Folgetag, wird 27 kg Saxolith 5 HE und 5kg Sipernat 820AG zugegeben, sowie ca. 0.6kg Agitan E 120 und ca. 0.6kg Byk 420. Diese ganze Mischung wird dann weiter ca. 4 bis 5 Stunden umgerührt, was zur innigen Vermischung führt, sodass ein flüssiger, weisslicher bis ockerfarbiger, gut streichfähiger Antirutschlacks erhalten wird.Afterwards, that means mostly on the following day, 27 kg Saxolith 5 HE and 5kg Sipernat 820AG are added, as well as approx. 0.6kg Agitan E 120 and approx. 0.6kg Byk 420. This whole mixture is then stirred for another 4 to 5 hours, which leads to the intimate mixing, so that a liquid, whitish to ocher, well spreadable anti-soiling is obtained.

Die Körnung sowie die Zusammensetzung des Saxolith-Anteils kann im Rahmen ihres Gesamtanteils an der Mischung nach Belieben variiert werden. Dieser Antirutschlack kann dann mit einem Pinsel auf die Saiten einer Bespannung gestrichen werden, bis die Saiten allseits von ihm eingehüllt sind und somit ummantelt sind. Dann lässt man den Anstrich trocknen und richtig aushärten, was am besten über Nacht erfolgt. Anderntags ist das Racket bzw. der Badminton- oder Squash-Schläger spielbereit. Durch den Anstrich sind die Saitenoberflächen rau und bleiben für viele Stunden Spielzeit rau. Wenn diese Beschichtung der Saiten schliesslich abgenützt ist, so kann die Spannung einfach von neuem bestrichen werden. Man bestreicht dann nur jene Stellen der Bespannung, die abgenützt sind, also vorwiegend den Bereich um das Zentrum der Bespannung, und das kann wenn nötig viele Male wiederholt werden, bis die Saiten ohnhin ihre Spannkraft verloren haben und die Bespannung oder gar das ganze Racket ersetzt werden muss.The grain size as well as the composition of the saxolith portion can be varied as desired within their total proportion of the mixture. This anti-slag can then be brushed with a brush on the strings of a string, until the strings are wrapped around him on all sides and are thus sheathed. Then you let the paint dry and right cure what is best done overnight. The next day the racquet or the badminton or squash racket is ready to play. By painting the string surfaces are rough and remain rough for many hours of play. When this coating on the strings finally wears out, the tension can simply be repainted. You then only spreads those parts of the clothing that are worn out, ie predominantly the area around the center of the clothing, and this can be repeated many times if necessary, until the strings have lost their elasticity and replaced the clothing or even the whole racket anyway must become.

Mit diesem Antirutschlack behandelte Rackets erhöhen die Schlagkraft und den Spin bei einem bestimmten Spieler oder einer bestimmten Spielerin schlagartig, egal ob er/sie ATP-/WTA-Spieler(in) ist oder ein Club- oder Freizeitspieler(in). Ausserdem ist als positiver Nebeneffekt zu vermerken, dass Haltbarkeit der Bespannung deutlich verlängert wird. Die Saiten werden nämlich durch den Anstrich von Feuchtigkeit geschützt und beim Spielen geschont. Gebrauchte Saiten bzw. alte Bespannungen lassen sich durch die Beschichtung in ihrer Spannkraft und ihrer Spielwirksamkeit wesentlich verbessern.Racquets treated with this anti-slag abruptly increase the power and spin of a particular player or player, whether he / she is an ATP / WTA player or a club or recreational player. In addition, it should be noted as a positive side effect that durability of the fabric is significantly extended. The strings are protected by the coating of moisture and spared while playing. Used strings or old clothing can be significantly improved by the coating in their resilience and their game effectiveness.

Claims (4)

  1. Agent for keeping strings of rackets for tennis, badminton and squash rough, consisting of at least a first and a second component, whereby the first component is a cristalline filler on marble basis, in fact a crystalline calcium-carbonate-filler, a fine crystalline calcium-magnesium-carbonate filler or a combination of fine crystalline calcium-magnesium-carbonate filler and fine crystalline calcium-magnesium-carbonate filler, whereby the first component is a granular mass of which the grains are sharp-edged and whereby the second component is a binding agent with adhesive properties, namely a higher melting maleic resin as grinding resin that is soluble in alcohol, or, after neutralisation, also in water.
  2. Agent for making and keeping strings of rackets for tennis, badmingon and squash rough according to 1, characterized in that it contains dimethylethanolamine for better resin solution and for stabilisation of the pH level.
  3. Agent for making and keeping strings of rackets of tennis, badminton and squash rough according to one of the preceding claims, characterized in that it contains isopropanole as a diluent for changing the viscosity.
  4. Procedure for manufacturing an agent for making and keeping strings of rackets of tennis, badminton and squash rough, whereby a second component is mixed into at least as much water and stirred for a few hours, later the mixture is cooled to room temperature and thereafter at least the same quantity of a first component as from the second component as used before is added and stirred until a homogene mixture is until a homogenous mixture is obtained, whereby the first component is a crystalline filling on marble basis, indeed the first component is a crystalline calcium carbonate filling, a fine crystalline calcium-magnesium-carbonate-filling, a combination of crystalline calcium-carbonate filling and fine crystalline calcium-magnesium-carbonate-filling, whereby the first component is a granular mass of which the grains are sharp-edged and whereby the second component is a binding agent with adhesion properties, indeed a higher melting maleic resin as grinding resin which can be soluble in alcohol or, after neutralisation, in water.
EP08733787.9A 2007-04-10 2008-04-08 Product for roughening the strings of tennis, badminton and squash rackets and for keeping them rough and method for producing said product Active EP2134429B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5882007 2007-04-10
PCT/CH2008/000159 WO2008122141A1 (en) 2007-04-10 2008-04-08 Product for roughening the strings of tennis, badminton and squash rackets and for keeping them rough and method for producing said product

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EP2134429A1 EP2134429A1 (en) 2009-12-23
EP2134429B1 true EP2134429B1 (en) 2015-08-26

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US (1) US8084084B2 (en)
EP (1) EP2134429B1 (en)
ES (1) ES2553961T3 (en)
WO (1) WO2008122141A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3920658A (en) * 1972-01-20 1975-11-18 Martin James Benson Coated tennis string and process for coating
US4238262A (en) * 1978-07-26 1980-12-09 Fishel Clark W Applying particles and adhesive to racquet strings
DE3218899A1 (en) * 1981-12-17 1983-06-30 Wilhelm 2800 Bremen Wilms Stringing for tennis or squash rackets
DE19625697A1 (en) * 1996-04-22 1998-01-08 Helmut Luethy Coating agent for strings with string covering
DE69835649T2 (en) * 1997-10-15 2007-09-13 E.I. Dupont De Nemours And Co., Wilmington Copolymers of maleic acid or its anhydride and fluorinated olefins
US6835454B1 (en) * 1999-08-24 2004-12-28 Stuart Karl Randa Fluoropolymer modification of strings for stringed sports equipment and musical instruments
US20070009723A1 (en) * 2004-08-20 2007-01-11 Masanori Ogawa Flame-retardant sheet and formed article therefrom
DE102004046180A1 (en) * 2004-09-23 2006-03-30 Wacker Chemie Ag Nitrogen-containing organopolysiloxanes and their use in crosslinkable compositions
US20060084532A1 (en) * 2004-10-20 2006-04-20 Chaokang Chu Strings for racquets
US20060177619A1 (en) * 2005-02-04 2006-08-10 Ronald Kessler Rollable floor mat with non-slip surface
US7714217B2 (en) * 2007-12-21 2010-05-11 Innovatech, Llc Marked precoated strings and method of manufacturing same

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US8084084B2 (en) 2011-12-27
EP2134429A1 (en) 2009-12-23
ES2553961T3 (en) 2015-12-15
US20100117026A1 (en) 2010-05-13
WO2008122141A1 (en) 2008-10-16

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