EP0088748A1 - Surfacing for tennis-courts, and a method for producing the surfacing material - Google Patents
Surfacing for tennis-courts, and a method for producing the surfacing material Download PDFInfo
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- EP0088748A1 EP0088748A1 EP83890031A EP83890031A EP0088748A1 EP 0088748 A1 EP0088748 A1 EP 0088748A1 EP 83890031 A EP83890031 A EP 83890031A EP 83890031 A EP83890031 A EP 83890031A EP 0088748 A1 EP0088748 A1 EP 0088748A1
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- Prior art keywords
- particles
- covering
- platelet
- scale
- bed
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000000463 material Substances 0.000 title claims description 3
- 239000002245 particle Substances 0.000 claims abstract description 44
- 229920003023 plastic Polymers 0.000 claims abstract description 23
- 239000004033 plastic Substances 0.000 claims abstract description 23
- 229920001971 elastomer Polymers 0.000 claims abstract description 10
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 5
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 239000000806 elastomer Substances 0.000 claims abstract description 4
- 229920002635 polyurethane Polymers 0.000 claims abstract description 4
- 239000004814 polyurethane Substances 0.000 claims abstract description 4
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000005060 rubber Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000011449 brick Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 235000013339 cereals Nutrition 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 235000013312 flour Nutrition 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000005062 Polybutadiene Substances 0.000 description 2
- 244000007853 Sarothamnus scoparius Species 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- 229920003314 Elvaloy® Polymers 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
- E01C13/06—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003
- E01C13/065—Pavings made in situ, e.g. for sand grounds, clay courts E01C13/003 at least one in situ layer consisting of or including bitumen, rubber or plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/148—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers specially adapted for disintegrating plastics, e.g. cinematographic films
Definitions
- the invention relates to a covering for sports fields, in particular for tennis courts, which has a loose particle bed containing plastic particles on its surface, and a method for producing these plastic particles.
- a relatively thin covering layer of fine rubber granulate with a grain size of 0.5 to 1.5 mm is then applied to this carrier layer, which fills the gaps between the stabilizing grains protruding from the carrier layer and covers their tips. If the athlete now pushes off the surface, the tips of the stabilizing grains are gripped by the profile sole of the tennis or sports shoe, which enables, for example, a perfect push when starting. The slight slipping that is desired when braking is ensured by the fine rubber granulate of the cover layer, whereby a greater lateral displacement of the cover layer granules is largely prevented by the stabilizing grains firmly embedded in the support layer.
- the sports field covering known from CH-A-611959 is, however, quite complex to manufacture.
- the invention seeks to remedy this.
- the invention as characterized in the claims, solves the problem of creating a covering for sports fields, in particular for tennis courts, which has a loose bed of plastic particles on its surface, and to provide a method for producing these plastic particles, wherein the covering largely everyone any level solid surface, such as on asphalt, can be applied and removed from it, if necessary, and which is just as pleasant for the athlete when using it as a brick meal place.
- the invention also achieves the object of specifying an advantageous method for producing plastic particles which are particularly suitable for use in these loose fillings.
- a covering according to the invention which has the desired properties can only consist of a loose bed of particles based on an elastic plastic or a crosslinked rubber, if at least the majority of the particles used are in the form of flakes or scales.
- the elastic plastic is based on a thermoplastic polyurethane elastomer and / or a one- or two-component polyurethane system and / or a thermoplastic rubber and / or a modified PVC compound.
- particles based on an elastic plastic or a crosslinked rubber is intended to indicate that the particles can contain, in addition to the plastic, fillers, aging agents, stabilizers, processing aids, dyes and / or pigments and inorganic additives in the usual way.
- Particles of this type have only a slight tendency to curl, which on the one hand favors a stabilization of the bed on the ground and, on the other hand, when braking conditions of the athlete leads to an increased braking effect with the desired slight sliding. In addition, turning the leg is made much easier.
- the bed is advantageously a few millimeters thick. Good results can also be obtained if the bed is only applied to the level solid surface in the form of a finish, whereby the surface of the surface may not be completely covered by the particles, so that the boundary lines applied to the solid surface are still despite the bed are clearly recognizable.
- the amount of particles applied to these finish beds is advantageously in the range between 0.2 to 0.6 kg / m 2 .
- a plastic tape 1 is assumed, the thickness of which is equal to one of the dimensions (for example the thickness) of the particles to be produced.
- the plastic strip 1 is pulled off the roll and continuously advanced with its front edge 2 over a fixed shear bar 4 provided with comb-like toothed cutting edge 3.
- a rotor equipped with one or more knives 5 works together, the cutting edges 6 of the knives 5 also being toothed are and cooperate with the cutting edge 3 of the shear bar 4.
- the impact knives 5 are rotated, the plastic particles 7 are separated from the front edge 2 of the continuously advanced plastic strip 1, for example in the intended plate shape.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Food Science & Technology (AREA)
- Road Paving Structures (AREA)
- Road Repair (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
Die Erfindung betrifft einen Belag für Sportplätze, insbesondere für Tennisplätze, der an seiner Oberfläche eine Kunststoffteilchen enthaltende, lose Teilchenschüttung aufweist, sowie ein Verfahren zur Herstellung dieser Kunststoffteilchen.The invention relates to a covering for sports fields, in particular for tennis courts, which has a loose particle bed containing plastic particles on its surface, and a method for producing these plastic particles.
Bei Sportarten wie bei Tennis, bei denen der Sportler viel Laufarbeit mit Starten, Beschleunigen und vielfach abruptem Abbremsen zu bewältigen hat, haben sich bisher insbesondere Rasenplätze oder, bei den sogenannten Hartplätzen, Spielplätze mit einer Oberflächenschicht aus lose geschütteten und gewalzten Ziegelmehl bewährt. Ein wesentlicher Vorteil solcher Ziegelmehlplätze liegt darin, daß der Sportler bei einer abrupten Abbremsbewegung mit dem abbremsenden Bein geringfügig ausgleitet, wodurch die dabei aufzunehmenden Spitzenbelastungen verringert und die Gelenke und Bänder der Beine geschont werden. Andererseits sind Elastizität, Dämpfung und das Reibungsverhalten eines gewalzten Ziegelmehlbelages besonders günstig.In sports such as tennis, in which the athlete has to do a lot of running work with starting, accelerating and often abruptly braking, lawn areas or, in the so-called hard courts, playgrounds with a surface layer of loosely poured and rolled brick powder have proven their worth. A major advantage of such brick flour places is that the athlete slides slightly with the braking leg in the event of an abrupt braking movement, thereby reducing the peak loads to be absorbed and protecting the joints and ligaments of the legs. On the other hand, elasticity, damping and the friction behavior of a rolled brick dust covering are particularly favorable.
Nachteile der Ziegelmehlplätze bestehen in dem hohen Pflegeaufwand; der Platz muß regelmäßig gewalzt und befeuchtet werden. Bei einer zu geringen Feuchtigkeit besteht außerdem eine Neigung zum Stauben. Das Ziegelmehl unterliegt ferner einem ständigen Verschleiß und muß von Zeit zu Zeit erneuert werden. Aus diesem Grund und der Notwendigkeit einer Befeuchtung, die in geschlossenen Räumen oft zu einer unangenehmen hohen Luftfeuchtigkeit führt, ist der Einsatz von solchen Ziegelmehlbelägen in geschlossenen Sporthallen Um die Nachteile dieser Ziegelmehlbeläge zu vermeiden, wurde in der CH-A-611 959 ein insbesondere für Tennisplätze geeigneter Sportplatzbelag vorgeschlagen, bei dem eine Trägerschicht vorgesehen ist, in der Stabilisierungskörner z.B. aus Gummi fest eingebettet sind, welche etwa mit einem Drittel ihrer Höhenabmessung aus der Trägerschicht herausragen. Auf diese Trägerschicht wird dann eine relativ dünne Deckschicht aus feinem Gummigranulat mit einer Körnung von 0,5 bis 1,5 mm aufgebracht, welche die Zwischenräume zwischen den aus der Trägerschicht herausragenden Stabilisierungskörnern ausfüllt und deren Spitzen bedeckt. Wenn sich der Sportler nun von dem Belag abdrückt, werden die Spitzen der Stabilisierungskörner von der Profilsohle des Tennis- oder Sportschuhes erfaßt, was z.B. beim Starten ein einwandfreies Abdrücken ermöglicht. Das beim Abbremsen gewünschte geringfügige Ausgleiten wird durch das feine Gummigranulat der Deckschicht gewährleistet, wobei ein stärkeres seitliches Verschieben des Deckschicht - Granulates durch die in der Trägerschicht fest eingebetteten Stabilisierungskörner weitgehend verhindert wird. Der aus der CH-A-611959 bekannte Sportplatzbelag ist in seiner Herstellung aber recht aufwendig.Disadvantages of the brick flour places are the high maintenance effort; the place must be rolled and moistened regularly. If the humidity is too low, there is also a tendency to dust. The brick flour is also subject to constant wear and must be replaced from time to time. For this reason and the need for humidification, which often leads to unpleasant high humidity in closed rooms, the use of such brick dust coverings in closed sports halls In order to avoid the disadvantages of these brick dust coverings, a sports field covering particularly suitable for tennis courts was proposed in CH-A-611 959, in which a backing layer is provided in which stabilizing grains, for example made of rubber, are firmly embedded, which are approximately one third of their height dimension protrude from the support layer. A relatively thin covering layer of fine rubber granulate with a grain size of 0.5 to 1.5 mm is then applied to this carrier layer, which fills the gaps between the stabilizing grains protruding from the carrier layer and covers their tips. If the athlete now pushes off the surface, the tips of the stabilizing grains are gripped by the profile sole of the tennis or sports shoe, which enables, for example, a perfect push when starting. The slight slipping that is desired when braking is ensured by the fine rubber granulate of the cover layer, whereby a greater lateral displacement of the cover layer granules is largely prevented by the stabilizing grains firmly embedded in the support layer. The sports field covering known from CH-A-611959 is, however, quite complex to manufacture.
Hier will die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe, einen Belag für Sportplätze, insbesondere für Tennisplätze zu schaffen, der an seiner Oberfläche eine lose Schüttung aus Kunststoffteilchen aufweist, sowie ein Verfahren zur Herstellung dieser Kunststoffteilchen anzugeben, wobei der Belag auf weitgehend jedem beliebigen ebenen festen Untergrund, wie z.B. auf Asphalt, aufgebracht und gegebenenfalls von diesem wieder abgetragen werden kann und welcher bei einer Benutzung für den Sportler ebenso angenehm ist, wie ein Ziegelmehlplatz. Die Erfindung löst ferner die Aufgabe, ein vorteilhaftes Verfahren zur Herstellung von Kunststoffteilchen anzugeben, die insbesondere zum Einsatz in diesen losen Schüttungen geeignet sind.The invention seeks to remedy this. The invention, as characterized in the claims, solves the problem of creating a covering for sports fields, in particular for tennis courts, which has a loose bed of plastic particles on its surface, and to provide a method for producing these plastic particles, wherein the covering largely everyone any level solid surface, such as on asphalt, can be applied and removed from it, if necessary, and which is just as pleasant for the athlete when using it as a brick meal place. The invention also achieves the object of specifying an advantageous method for producing plastic particles which are particularly suitable for use in these loose fillings.
Die Erfindung wird nachstehend anhand eines durch mehrere Varianten erläuterten Ausführungsweges näher beschrieben.The invention is described below with reference to an embodiment explained by several variants.
Die Anmelder haben gefunden, daß ein die gewünschten Eigenschaften aufweisender erfindungsgemäßer Belag nur aus einer losen Schüttung aus Teilchen auf Basis eines elastischen Kunststoffes oder eines vernetzten Kautschuks bestehen kann, wenn zumindest der größere Teil der eingesetzten Teilchen plättchen- oder schuppenförmig ausgebildet sind. Der elastische Kunststoff ist dabei einer auf Basis eines thermoplastischen Polyurethan-Elastomeren und/ oder eines Ein- oder Zweikomponenten-Polyurethansystems und/oder eines thermoplastischen Kautschuks und/oder eines modifizierten PVC-Compounds.The applicants have found that a covering according to the invention which has the desired properties can only consist of a loose bed of particles based on an elastic plastic or a crosslinked rubber, if at least the majority of the particles used are in the form of flakes or scales. The elastic plastic is based on a thermoplastic polyurethane elastomer and / or a one- or two-component polyurethane system and / or a thermoplastic rubber and / or a modified PVC compound.
Mit der Angabe "Teilchen auf Basis eines elastischen Kunststoffes oder eines vernetzten Kautschuks" soll angedeutet werden, daß die Teilchen neben dem Kunststoff in üblicher Weise Füllstoffe, Alterungsmittel, Stabilisatoren, Verarbeitungshilfsstoffe, Farbstoffe und/oder Pigmente sowie anorganische Beimengungen enthalten können.The phrase "particles based on an elastic plastic or a crosslinked rubber" is intended to indicate that the particles can contain, in addition to the plastic, fillers, aging agents, stabilizers, processing aids, dyes and / or pigments and inorganic additives in the usual way.
Teilchen dieser Art haben nur eine geringe Rollneigung, was einerseits einer Stabilisierung der Schüttung auf dem Untergrund begünstigt und, andererseits, bei Abbremsbewegungen des Sportlers zu einer erhöhten Bremswirkung bei dem gewünschten geringfügigen Ausgleiten führt. Außerdem wird ein Drehen des Standbeins ganz-wesentlich erleichtert.Particles of this type have only a slight tendency to curl, which on the one hand favors a stabilization of the bed on the ground and, on the other hand, when braking conditions of the athlete leads to an increased braking effect with the desired slight sliding. In addition, turning the leg is made much easier.
Die Schüttung ist vorteilhaft einige Millimeter dick. Gute Ergebnisse erhält man aber auch, wenn die Schüttung auf dem ebenen festen Untergrund nur in Form eines Finish's aufgetragen wird, wobei gegebenenfalls die Oberfläche des Untergrundes nicht völlig von den Teilchen bedeckt ist, so daß die auf den festen Untergrund aufgebrachten Begrenzungslinien trotz der Schüttung noch weiter deutlich zu erkennen sind. Die bei diesen Finish-Schüttungen aufgebrachten Teilchenmengen liegen vorteilhaft im Bereich zwischen 0,2 bis 0,6 kg/m 2.The bed is advantageously a few millimeters thick. Good results can also be obtained if the bed is only applied to the level solid surface in the form of a finish, whereby the surface of the surface may not be completely covered by the particles, so that the boundary lines applied to the solid surface are still despite the bed are clearly recognizable. The amount of particles applied to these finish beds is advantageously in the range between 0.2 to 0.6 kg / m 2 .
Nachstehend wird anhand der Figur eine vorteilhafte Ausführung des erfindungsgemäßen Verfahrens zur Herstellung von insbesondere plättchenförmigen Kunststoffteilchen einer geometrisch definierten Form, die insbesondere zum Einsatz als Schüttungsmaterial für die erfindungsgemäßen Sportplatz-Beläge geeignet sind, näher beschrieben.An advantageous embodiment of the method according to the invention for producing, in particular, platelet-shaped plastic particles of a geometrically defined shape, which are particularly suitable for use as fill material for the sports field coverings according to the invention, is described in more detail below with reference to the figure.
Bei der Herstellung der Kunststoffteilchen wird von einem Kunststoffband 1 ausgegangen, dessen Dicke gleich einer der Dimensionen (z.B. der Dicke) der herzustellenden Teilchen ist. Das Kunststoffband 1 wird von der Rolle abgezogen und kontinuierlich mit seiner Vorderkante 2 über eine feststehende, mit kammartig gezahnter Schneidkante 3 versehene Gegenschneide 4 vorgeschoben. Mit dieser Gegenschneide 4 arbeitet ein mit einem oder mehreren Schlagmessern 5 bestückter Rotor zusammen, wobei die Schneidkanten 6 der Schlagmesser 5 ebenfalls kammartig gezahnt sind und mit der Schneidkante 3 der Gegenschneide 4 zusammenwirken. Beim Rotieren der Schlagmesser 5 werden dann von der Vorderkante 2 des kontinuierlich vorgeschobenen Kunststoffbandes 1 die Kunststoffteilchen 7 - z.B. in der vorgesehenen Plättchenform - abgetrennt.In the production of the plastic particles, a plastic tape 1 is assumed, the thickness of which is equal to one of the dimensions (for example the thickness) of the particles to be produced. The plastic strip 1 is pulled off the roll and continuously advanced with its
Der erfindungsgemäße Sportplatzbelag wird nun anhand von einigen vorteilhaften Ausführungsvarianten näher erläutert.The sports field covering according to the invention will now be explained in more detail on the basis of some advantageous design variants.
- 1. Ausgehend von einem Band aus einem thermoplastischen Kautschuk - vorzugsweise einen thermoplastischen Polystyrol-Butadien-Kautschuk - einer Stärke von 0,6 mm, wie ihn z.B. die Firma SHELL CHEMIE, Wien, anbietet, werden nach dem anhand der Figur beschriebenen Verfahren plättchenförmige Teilchen mit einer Flächenabmessung von 2 x 2 mm hergestellt. Diese Teilchen werden nun auf einen Tennisplatz, der einen üblichen Asphaltbelag aufweist, mit einer Auftragsmenge im Bereich zwischen 0,2 bis 0,6 kg/m2 aufgeschüttet und mittels eines Besens über das Tennisplatzareal gleichmäßig verteilt. Ein solcher Tennisplatz ist dann ebenso angenehm zu bespielen wie ein Ziegelmehlplatz, ohne jedoch dessen Nachteile zu haben. Bei einer konzentrierten Beanspruchung durch den Spieler verschieben sich die aufgeschütteten Teilchen nur in geringem Ausmaß. Der Platz kann zwecks Vergleichmäßigung der Schüttung jederzeit wieder mit Hilfe eines Besens abgezogen werden. Bei einer Reinigung des Platzes können die Teilchen samt dem angesammelten Schmutz mittels eines Staubsaugers entfernt, gereinigt und wiederverwendet werden.1. Starting from a tape made of a thermoplastic rubber - preferably a thermoplastic polystyrene-butadiene rubber - of a thickness of 0.6 mm, as offered, for example, by the company SHELL CHEMIE, Vienna, platelet-shaped particles are obtained by the process described with the aid of the figure manufactured with an area of 2 x 2 mm. These particles are now poured onto a tennis court, which has a conventional asphalt surface, with an application quantity in the range between 0.2 to 0.6 kg / m 2 and evenly distributed over the tennis court area by means of a broom. Such a tennis court is just as pleasant to play with as a brick flour court, but without having its disadvantages. With a concentrated load by the player, the heaped-up particles move only to a small extent. The space can be removed at any time with the help of a broom to even out the fill. When cleaning the area, the particles and the accumulated dirt can be removed, cleaned and reused with a vacuum cleaner.
- 2. Statt des thermoplastischen Kautschuks wird gemäß einer anderen Ausführungsvariante des Sportplatz-Belages ein 0,7 mm starkes Band aus einem thermoplastischen Polyurethan-Elastomeren eingesetzt. Diese bestehen vorzugsweise aus Polyadditionsprodukten von Polyestern, Diisocyanaten und Kettenextendern, wie sie z.B. gemäß der Typenreihe 400 von der Firma EUROPOLYMERS LTD., England, angeboten werden.2. Instead of the thermoplastic rubber, a 0.7 mm thick band made of a thermoplastic polyurethane elastomer is used according to another embodiment of the sports field covering. These preferably consist of polyaddition products of polyesters, diisocyanates and chain extenders, such as those e.g. according to the 400 series from EUROPOLYMERS LTD., England.
- 3. Nach einer weiteren Ausführungsvariante wird als Ausgangsmaterial zur Erzeugung der Kunststoffteilchen ein Band aus einem Ein- oder Zweikomponenten-Polyurethansystem eingesetzt. Ein solches System besteht z.B. aus einem modifizierten MDI und einer Äther-Glycol-Mischung, wie sie in einem kalthärtenden System der Type BAYSPORT der Firma BAYER, BRD, angeboten wird.3. According to a further embodiment variant, a tape made of a one- or two-component polyurethane system is used as the starting material for producing the plastic particles. Such a system is e.g. from a modified MDI and an ether-glycol mixture, as it is offered in a cold-curing system of the BAYSPORT type from BAYER, Germany.
- 4. Gemäß noch einer weiteren Ausführungsvariante besteht das zur Teilchenerzeugung eingesetzte Band aus einem modifizierten PVC-Compound. Das Modifizierungsmittel kann dabei ein Polyurethan-Elastomeres sein, wie es z.B. von der Firma EUROPOLYMERS LTD., England, unter der Type 707 geliefert wird, oder ein Permanentweichmacher auf Kunstharzbasis sein, wie er von der Firma DU PONT, Schweiz, unter der Type ELVALOY 741 angeboten wird.4. According to yet another embodiment variant, the belt used for particle production consists of a modified PVC compound. The modifying agent can be a polyurethane elastomer, e.g. by the company EUROPOLYMERS LTD., England, under the type 707, or a permanent plasticizer based on synthetic resin, as is offered by the company DU PONT, Switzerland, under the type ELVALOY 741.
- 5. In einer letzten Ausführungsvariante besteht das zur Teilchenerzeugung eingesetzte Band aus einem vernetzten Polystyrol-Butadien-Kautschuk, der unter Einsatz von Vulkanisiermitteln und Beschleunigern erzeugt wurde, wie er z.B. unter der Type 1605 von SHELL CHEMICALS geliefert wird.5. In a last embodiment, the belt used for particle production consists of a cross-linked polystyrene-butadiene rubber, which is under The use of vulcanizing agents and accelerators, such as the SHELL CHEMICALS Type 1605.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT83890031T ATE20259T1 (en) | 1982-03-08 | 1983-03-08 | COVERING FOR TENNIS COURTS, AND A PROCESS FOR MANUFACTURING THE COVERING MATERIAL. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP82890036 | 1982-03-08 | ||
| EP82890036A EP0063111B1 (en) | 1981-03-09 | 1982-03-08 | Surfacing for sports grounds, particularly for tennis courts, and a method of producing the surfacing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0088748A1 true EP0088748A1 (en) | 1983-09-14 |
| EP0088748B1 EP0088748B1 (en) | 1986-06-04 |
Family
ID=8190171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19830890031 Expired EP0088748B1 (en) | 1982-03-08 | 1983-03-08 | Surfacing for tennis-courts, and a method for producing the surfacing material |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0088748B1 (en) |
| DE (1) | DE3363878D1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4444030A1 (en) * | 1994-04-01 | 1995-10-05 | Ralph Schoepp | Ground covering for tennis courts |
| AT405791B (en) * | 1994-04-01 | 1999-11-25 | Schoepp Ralph | FLOORING, IN PARTICULAR FOR TENNIS COURTS |
| GB2340497A (en) * | 1998-06-03 | 2000-02-23 | Genshaw Ltd | Synthetic surfacing material for play and sports areas and the like |
| EP1491685A1 (en) * | 2003-06-23 | 2004-12-29 | Ralph Schöpp | Floor covering especially for tennis courts |
Citations (8)
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|---|---|---|---|---|
| US3291486A (en) * | 1962-06-26 | 1966-12-13 | Dow Chemical Co | Ski slopes having a surface coating comprising a particulate resinous composition |
| CH505650A (en) * | 1969-09-22 | 1971-04-15 | Calmec Extruform Ltd | Shredder/pulverizer for thin plastic mater - ial |
| DE2110327A1 (en) * | 1971-03-04 | 1972-09-21 | Herbert Allwelt | Rubber granules - from used tyres with rotary stripping blade and cutting screens |
| US3731923A (en) * | 1971-04-26 | 1973-05-08 | Snow Products | Artificial ski slope |
| US3736847A (en) * | 1971-09-07 | 1973-06-05 | Mosher R | Synthetic terrain covering |
| DE2420913A1 (en) * | 1974-04-30 | 1975-11-13 | Wilhelm Haeberle | Disintegrator esp for plastics waste and glass - has flat parallel segment-shaped meshing oscillating blades |
| DE2602652A1 (en) * | 1976-01-24 | 1977-07-28 | Rolfherbert Stuehmer | Slip-improving plastics coating for a ski - comprises an optionally slightly compacted layer of plastics particles which may contain a metallic filler |
| CH611959A5 (en) * | 1977-09-28 | 1979-06-29 | Becker Kg Sport |
-
1983
- 1983-03-08 DE DE8383890031T patent/DE3363878D1/en not_active Expired
- 1983-03-08 EP EP19830890031 patent/EP0088748B1/en not_active Expired
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3291486A (en) * | 1962-06-26 | 1966-12-13 | Dow Chemical Co | Ski slopes having a surface coating comprising a particulate resinous composition |
| CH505650A (en) * | 1969-09-22 | 1971-04-15 | Calmec Extruform Ltd | Shredder/pulverizer for thin plastic mater - ial |
| DE2110327A1 (en) * | 1971-03-04 | 1972-09-21 | Herbert Allwelt | Rubber granules - from used tyres with rotary stripping blade and cutting screens |
| US3731923A (en) * | 1971-04-26 | 1973-05-08 | Snow Products | Artificial ski slope |
| US3736847A (en) * | 1971-09-07 | 1973-06-05 | Mosher R | Synthetic terrain covering |
| DE2420913A1 (en) * | 1974-04-30 | 1975-11-13 | Wilhelm Haeberle | Disintegrator esp for plastics waste and glass - has flat parallel segment-shaped meshing oscillating blades |
| DE2602652A1 (en) * | 1976-01-24 | 1977-07-28 | Rolfherbert Stuehmer | Slip-improving plastics coating for a ski - comprises an optionally slightly compacted layer of plastics particles which may contain a metallic filler |
| CH611959A5 (en) * | 1977-09-28 | 1979-06-29 | Becker Kg Sport |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4444030A1 (en) * | 1994-04-01 | 1995-10-05 | Ralph Schoepp | Ground covering for tennis courts |
| AT405791B (en) * | 1994-04-01 | 1999-11-25 | Schoepp Ralph | FLOORING, IN PARTICULAR FOR TENNIS COURTS |
| GB2340497A (en) * | 1998-06-03 | 2000-02-23 | Genshaw Ltd | Synthetic surfacing material for play and sports areas and the like |
| GB2340497B (en) * | 1998-06-03 | 2003-01-08 | Genshaw Ltd | Construction materials |
| US6818278B1 (en) | 1998-06-03 | 2004-11-16 | Sovereign Rubber Limited | Construction materials |
| EP1000199B1 (en) * | 1998-06-03 | 2005-01-26 | Sovereign Rubber Limited | Construction materials |
| EP1491685A1 (en) * | 2003-06-23 | 2004-12-29 | Ralph Schöpp | Floor covering especially for tennis courts |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3363878D1 (en) | 1986-07-10 |
| EP0088748B1 (en) | 1986-06-04 |
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