Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
  • A63B60/06—Handles
  • A63B60/14—Coverings specially adapted for handles, e.g. sleeves or ribbons
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B49/00—Stringed rackets, e.g. for tennis
  • A63B49/02—Frames
  • A63B49/08—Frames with special construction of the handle
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
  • A63B60/06—Handles
  • A63B60/08—Handles characterised by the material
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
  • A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
  • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
  • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
  • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
  • D06N3/0025—Rubber threads; Elastomeric fibres; Stretchable, bulked or crimped fibres; Retractable, crimpable fibres; Shrinking or stretching of fibres during manufacture; Obliquely threaded fabrics
  • D06N3/0031—Retractable fibres; Shrinking of fibres during manufacture
• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
  • A63B60/06—Handles
  • A63B60/18—Handles with means for cooling, ventilating or sweat-reduction, e.g. holes or powder dispensers
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S428/00—Stock material or miscellaneous articles
  • Y10S428/904—Artificial leather
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
  • Y10T428/24438—Artificial wood or leather grain surface
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24777—Edge feature
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24777—Edge feature
  • Y10T428/24785—Edge feature including layer embodying mechanically interengaged strands, strand portions or strand-like strips [e.g., weave, knit, etc.]
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
  • Y10T428/266—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension of base or substrate

Definitions

• Grip tapes are used to improve the handling of devices such as sports equipment or vehicle drivers.
• Grips for sports equipment rackets e.g. Tennis, table tennis, squash or golf clubs.
• the handle of such rackets is wrapped with such a grip tape, thereby increasing the grip of the device.
• handles of sports equipment or steering wheels it is necessary to provide a good grip and to ensure slip resistance.
• Grips made of leather or textile material are already known.
• grip tapes made of plastic-coated backing materials are also used for sports rackets. In order to achieve grip, such grip tapes usually had to be roughened into a suede-like structure by an additional operation. Such grip tapes impart a certain slip resistance, but do not yet show optimal grip behavior.
• the object of the invention are grip tapes based on plastic-coated carrier materials which, because of their stickiness or slip resistance, impart a good grip to the device without a substantial change in grip strength and at the same time are highly moisture-absorbent and shock-absorbing.
• grip tapes on the basis of carrier materials coated with plastic, which are characterized by a carrier material consisting of nonwoven, woven fabric or knitted fabric which, before being processed, has an extensibility in the transverse and / or longitudinal direction and / or diagonal direction in each case has at least 10%, and an impregnation applied by NaBcoagulation on the basis of polyurethanes.
• the carrier material of the grip tapes consists of a spunbonded fabric, in particular a needled spunbonded fabric, which has an extensibility in the longitudinal and / or transverse direction of at least 30%, in particular an extensibility in the transverse direction of at least 50% before being processed.
• the carrier material consists of cotton gauze which, before being processed as a grip tape, has an extensibility in the transverse or longitudinal direction of at least 20%.
• the thickness of the nonwoven as the carrier material is preferably 0.2 to 1.0 mm, in particular 0.3 to 0.35 mm, and the thickness of the fabric as the carrier material is 0.2 to 1.0 mm, in particular 0.7 to 0.8 mm.
• Grip tapes based on fleece preferably have a thickness of 0.35 to 1.2 mm, in particular 0.45 to 0.5 mm, and those based on fabric preferably have a thickness of 0.3 to 1.2 mm , in particular 0.8 to 0.9 mm.
• the impregnation or coating based on polyurethanes advantageously contains up to 30% by weight of other thermoplastics in addition to polyurethanes cal polymers, especially polyvinyl chloride.
• Another object of the invention is a method for producing grip tapes based on plastic-coated carrier materials, which is characterized in that a carrier material consisting of nonwoven, woven or knitted fabric with an extensibility in the transverse and / or longitudinal direction and / or diagonal direction of at least 10% is impregnated with a solution of impregnating agent based on polyurethanes, dissolved in a water-soluble solvent, the impregnated material is passed through at least one coagulation bath composed of a mixture of the solvent and water, the liquid is pressed off the carrier material coated with coagulate is then rinsed with water, pressed again and dried and optionally cut into strips.
• Dimethylformamide is preferably used in the manufacture of the grip tapes as a solvent for the impregnating agent based on polyurethanes.
• the backing material soaked with polyurethane solution is first passed through a first aqueous coagulation bath with a higher solvent content of, for example, 15 to 35% by weight and then through a second aqueous coagulation bath with a lower solvent content of, for example, 5 to 20% by weight. -% guided.
• the substrate material is expediently subjected to a pretreatment with alkalizing agents or with chlorinated hydrocarbons before impregnation with polyurethane solution.
• This achieves fine fibrousness by repeatedly - for example from DTEX 1.7 - preferably six times - is split. Due to the fine fibers, the inclusion of air bubbles in the end product is increased and excellent absorbency is achieved.
• the grip tapes according to the invention contain a nonwoven, woven or knitted fabric, the stretchability of which before processing in the transverse and / or longitudinal direction and / or diagonal direction is at least 10%.
• the extensibility of the carrier material in the transverse direction and / or longitudinal direction and / or diagonal direction is preferably between 20 and 50% in each case. Depending on the intended use of the grip tape, it can amount to 50 to 70% or even 100% and more.
• the elasticity of the backing material is particularly important for the excellent properties of the grip tapes.
• fabrics are used as the backing material, they mainly consist of cotton, blended fabrics or plastic fabrics. Gauze, especially cotton gauze, proved to be particularly favorable. A cotton gauze which is similar to that used for wound treatment, but has a stretchability in the transverse or longitudinal direction of at least 20%, especially at least 50%, is preferred.
• Knitted fabrics can also be used successfully as carrier materials for the grip tapes according to the invention, provided that their extensibility in the longitudinal and / or transverse direction and / or diagonal direction is at least 10%, preferably 30% and more. Textile knitted fabrics based on threads made of plastic, natural or mixed fibers are suitable.
• fleece is used as the backing material, a wide variety of plastic, natural and / or mixed fibers can be used. Nonwovens based on polyester, polyacrylic and / or polyethylene fibers or mixed fibers made of plastic and cotton proved to be favorable. Any fleece can be used, provided that it has the appropriate extensibility in the transverse and / or longitudinal direction of at least 10%. Spunbonded and preferably needled spunbonded nonwovens are advantageously used as the carrier material.
• the nonwovens are generally very fine-fiber and preferably contain fibers in the denier range of DTEX 1.7.
• the fiber lengths are not particularly restricted, but are generally between 20 and 70 mm, preferably between 30 and 50 mm.
• the thickness of the backing material can be kept very small, which has the advantage that the final tapes are also thin and thus the grip strength is only slightly increased by applying the grip tape. Due to the great elasticity of the grip tapes, the increase in grip strength can be kept extremely small when the tape is wound onto the handle. The change in grip strength decreases with increasing elasticity of the band.
• the carrier material consisting of fleece, woven fabric or knitted fabric with an extensibility in the transverse direction and / or longitudinal direction and / or diagonal direction of at least 10% is coated with an impregnation on the basis of polyurethanes.
• the known polyurethane elastomers which can optionally be modified by incorporating plasticizing additives, can be used as polyurethanes.
• the polyurethanes can contain further thermoplastic polymers, such as, for example, polyvinyl acetate, polyacrylic esters or preferably polyvinyl halides,
• polyvinyl chloride contained in amounts of up to 30% by weight.
• polyurethane used here is intended to encompass any optionally modified polyurethanes, optionally including smaller amounts of other thermoplastic polymers.
• the carrier material is impregnated with a solution based on polyurethanes, dissolved in a water-soluble solvent.
• the carrier web is expediently passed through a polyurethane solvent bath.
• a large number of water-soluble solvents such as, for example, ketones such as acetone or esters such as, for example, ethyl acetate and dimethylacetamide or dimethyl sulfoxide, are suitable as solvents for the polyurethane to be applied.
• dimethylformamide is preferably used as the solvent for polyurethane. Mixtures of such solvents can also be used.
• the carrier web can also be passed through the polyurethane solvent bath several times. A repeated, e.g. Soaking the support material in the polyurethane solution two or three times with a residence time per bath of about 2 to 10 seconds increases the penetration of the support material, so that it is thoroughly soaked.
• the polyurethane impregnation bath can contain conventional chemical additives, such as plasticizers, dyes, color pastes, lubricants, stabilizers, etc.
• the addition of polyglycols is used primarily for plasticization and increases the incorporation of air bubbles.
• the carrier material can also be subjected to a pretreatment before it is impregnated with the polyurethane solution in order to split the fibers of the carrier material.
• the alkalization treatment is advantageously carried out at elevated temperatures, preferably at about 60 to 90 ° C., in particular 80 to 90 ° C.
• Pretreatment with chlorinated hydrocarbons is expediently carried out at their boiling point and for a short period, for example of 1 minute.
• the two types of pretreatment lead to multiple splitting of the fiber, the fibers often being split six or more times.
• the pretreatment of the carrier material is not absolutely necessary, but increases the air bubble absorption when the polyurethane is applied and its coagulation.
• the impregnated material can be passed directly through at least one coagulation bath from a mixture of the water-soluble solvent used to dissolve the polyurethane with water. It is not necessary to press or dry the carrier material soaked with polyurethane solution beforehand. Appropriately, the substrate material soaked one or more times is scraped to the desired thickness after leaving the impregnation bath, while the underside of the material runs over a steel roller, so that the top and bottom of the grip tape material are equally smooth.
• the tape thus has the advantage that it can be used on both sides.
• aqueous coagulation bath is advantageously kept at a slightly elevated temperature, for example at about 20 to 300. If several coagulation baths are used, the temperature of the first aqueous bath is usually somewhat higher, for example 25 to 30 ° C., while the second aqueous bath has temperatures of approximately 20 to 25 ° C.
• the number of coagulation baths can be increased, the water content of the coagulation bath always increasing compared to the solvent content from the first to the last bath.
• two or more coagulation baths in addition to coagulating the polyurethane, extensive rinsing out of the water-soluble solvent is achieved with the simultaneous formation of a large amount of air bubbles within the structure.
• the liquid is pressed off from the coated carrier material. This is advantageously done by passing the material through rollers.
• the coated material is rinsed with water, pressed again and dried. Washing is usually carried out with normal cold water, if necessary with the addition of a plasticizer.
• the material web is expediently guided and tensioned over a drum and water is pressed into and out of the material at certain time intervals. After the last pressing, the material is dried.
• the extorted coated sheet material is passed through a heated to temperatures of 100 to 160 ° C, in particular 120 drying oven held to 150 0 C, the remaining Feuch action to remove.
• the carrier material coated with coagulate is subject to a shrinkage during the manufacturing process, ie during impregnation, coagulation and rinsing, which is usually 10 to 15% and can be up to 30%, so that the web material is generally tensioned again during drying.
• the tension causes the width to expand by about 15 to 25%, preferably 20%.
• coated material obtained after the drying process can then be calendered on, with oil paper being advantageously rolled in between so that the webs do not stick to one another.
• the coated web materials obtained are then cut to the desired size into strips or strips, for example 20 to 30 mm wide, and can then be made up for delivery to the consumer, e.g. wound on a cardboard core and blistered.
• the coated web materials can be cut in the transverse, longitudinal or diagonal direction depending on the desired stretchability of the tape. Specifically, the coated web materials are cut in the transverse direction, so that the high elasticity of the starting carrier material in the transverse direction now corresponds to the elasticity of the grip tape in the longitudinal direction.
• coated fabric material is cut at an angle to the warp or weft direction of the fabric. This gives very stretchable bias binding that adapts particularly well to the curves without wrinkles when applied to handles or grip pads.
• the cutting process is expediently carried out with the aid of punching knives, especially using anti-stick agents, such as Talc.
• the grip tapes according to the invention are particularly favorable to chamfer the grip tapes according to the invention, in particular those which are intended for the helical wrapping of handles, on the longitudinal edges.
• the beveling can take place on both longitudinal edges of one surface or on both longitudinal edges of opposite surfaces, so that the respective oblique cut surfaces run either at an angle to one another or parallel.
• the coated material according to the invention proves to be completely cut-resistant at the cut surfaces without the carrier material fraying.
• the bevel cutting process can be carried out without the use of the usual edge glue.
• the bevelling of the longitudinal edges of the grip tape enables an overlapping helical winding without influencing the grip thickness or bulging in the overlap areas.
• the grip tapes of the invention are useful for a variety of purposes. They serve to encase device handles that have to fit particularly well in the hand and, thanks to their special design, provide a non-slip, non-slip, vibration-damping surface that is easy to handle.
• the grip tapes are particularly suitable for handles of sports equipment, for example for tennis, table tennis, squash, hockey and golf clubs, for the boom of the surf sail and for bicycle handlebars or steering wheels. Another purpose of the grip tapes is in shooting sports to cover the grip areas on the hand protection and grip recess of rifles.
• a suitable piece of grip tape which is provided on the back with self-adhesive pressure adhesive and protective paper, is applied to the grip surfaces after removing the protective film, so that the rifle can be held exactly without slipping off the hand.
• golf club grips are encased by gluing a trapezoidal piece of grip tape onto the grip.
• the grip tape is wound helically over the handle.
• sports rackets such as tennis or squash rackets
• a first or basic grip tape which corresponds to the leather strap used previously and is often already attached during production. Larger thicknesses are usually preferred for this basic grip tape.
• the grip tapes of reduced thickness are particularly suitable for so-called overgrip tapes which are wound over the basic grip tape.
• the overgrip tape in particular one based on fleece, which is characterized by an extremely small thickness, is wound up or renewed at more or less large intervals.
• the extremely small thickness of these straps allows the application of grip straps on device handles without the grip strength being increased appreciably, which, for example, turns out to be extremely advantageous in the case of ball game rackets and considerably improves the playing properties.
• the increased stickiness and absolute slip resistance, which are conveyed by the grip tapes according to the invention, are likewise properties which are particularly valued in ball game rackets.
• the products show an extremely soft surface without the need for further operations such as grinding and repeated calendering.
• the air bubbles incorporated in millions proved to be of essential importance for the quality of the grip tapes according to the invention, as a result of which a slight spring effect similar to a sponge effect and thus no bouncing effect in the Handle handling while playing is achieved.
• the smooth and shock-absorbing design of the grip tapes avoids any blistering on the hands when handling handles wrapped with such grip tapes, and in this way the dreaded tennis elbow disease can be prevented.
• the strong absorbency due to the built-in air bubbles ensures that sweat is drained away quickly, which often has a very disadvantageous effect when handling sports equipment rackets and impairs the playing properties. Due to the combination of the specified components and the special type of manufacture, the grip tapes of the invention are distinguished by increased service life and favorable heat resistance up to about 80 ° C. and even for a short time even more.
• a carrier web made of needled polyester spunbonded fabric with a thickness of 0.3 mm, a fiber length of 30 to 50 mm, an extensibility in the transverse direction of 70% and in the longitudinal direction of 10% is used for pretreatment by a 6% alkaline bath heated to about 80C iger Na 2 C0 3 solution in water to achieve a splitting of the fibers.
• the pretreated carrier web is passed into a polyurethane impregnation bath consisting of an 8 to 10% solution of polyurethane in dimethylformamide with the addition of 0.3 to 0.9% plasticizer and 3% color paste.
• the carrier web remains in the polyurethane impregnation bath for about 10 seconds.
• the coated carrier web is then transferred to the coagulation bath via rollers without pressing or drying.
• the first coagulation bath consists of Water containing 30% dimethylformamide and is kept at a temperature of about 30 0 C.
• the coated carrier web moves into a second aqueous coagulation bath which only contains 10% dimethylformamide.
• the temperature of the second coagulation bath is between 20 and 24 ° C.
• the liquid contained in and on the web is squeezed out by rolling, after which the treated web is washed out with cold water, then passed over a drum and tensioned, and water is pressed into the material and squeezed out again. The process is repeated twice. The solvent is then completely washed out of the coated material.
• the coated nonwoven web is subject to shrinkage of up to 15% during the preceding operations. During the subsequent drying in the drying oven at about 150 ° C, the web is stretched in width by about 20%. After drying, the web material is calendered with the interposition of oil paper to prevent the webs from sticking together.
• the finished sheets are cut transversely into strips 25 mm wide and rolled up on cardboard cores. The thickness of the finished strips is 0.45 mm.
• the grip tapes obtained were wound onto the handles of tennis rackets and table tennis rackets.
• the racket handles wrapped in this way showed a barely changed grip thickness due to the low thickness and extraordinary elasticity of the band material.
• the club grips were good to hold, had a good grip and gave excellent playing properties due to their shock-absorbing and absorbent properties.
• Example 1 The measures of Example 1 are repeated with the difference that a cotton fabric with a stretchability in the transverse direction of 60% and a thickness of 0.7 mm is used as the carrier material.
• the grip tapes obtained afterwards have a thickness of 0.9 to 1.0 mm and are used as basic wraps for tennis racket grips or as coverings for golf club grips.
• the tapes provided for wrapping tennis racket handles are cut into strips about 25 mm wide and bevelled on one surface at the longitudinal edges. Due to the bevelling of the longitudinal edges, the tapes could be wound helically on the handles of the sports rackets without any bulge at the overlap areas.
• the tapes provided for wrapping golf club grips are trapezoidally cut after coating with pressure adhesive and protective film to match the thickness of the club grips and glued to the handle.
• the handles covered with the tapes show excellent slip resistance, absorbency and spring action.
• a grip tape according to Example 2 was produced.
• the tapes obtained were coated on one side with pressure-sensitive adhesive and provided with a protective film. Tape pieces of a suitable size were removed after removing the protective film glued to the grip of the handguard as well as in the recessed grip of rifles and, due to the excellent slip resistance, absorbency and shock absorption, enable exact handling and thus increased target safety of the rifles.
• a spunbonded non-woven fabric made of polyacrylic-cotton mixed fiber with a fiber length of 40 mm, an extensibility in the transverse direction of up to 40% and in the longitudinal direction of 20% and a thickness of 0.35 mm was treated twice without pretreatment by a polyurethane soaking bath with a respective residence time per bath of about 5 seconds.
• the bath contained a solution of polyurethane in dimethylformamide with the addition of lubricant and dye. After impregnation with polyurethane solution, the coagulation is carried out in a water bath containing 20% dimethylformamide at 25 ° C.
• Example 1 After the liquid has been pressed off, the web material is washed out, dried and cut into ribbons in the manner indicated in Example 1, which are wound up by tennis rackets using the basic grip tape.
• the grip tapes produced in this way showed excellent grip, slip resistance, absorbency and shock absorption.

Landscapes

• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Golf Clubs (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Laminated Bodies (AREA)
• Manipulator (AREA)

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• 1984
  • 1984-04-19 DE DE19843414978 patent/DE3414978A1/de not_active Withdrawn
• 1985
  • 1985-04-18 AT AT85104611T patent/ATE39140T1/de not_active IP Right Cessation
  • 1985-04-18 US US06/724,623 patent/US4613537A/en not_active Expired - Fee Related
  • 1985-04-18 EP EP85104611A patent/EP0161515B1/fr not_active Expired
  • 1985-04-18 DE DE8585104611T patent/DE3566689D1/de not_active Expired

Patent Citations (7)

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