47results about "Solid balls" patented technology

A golf ball comprising an alignment aid 110 completely contained within a circumferential area of width 10mm or less defined by two boundaries 16,18. The alignment aid comprises a first alignment feat

Rubber compositions including sulfonamides, and golf ball cores made from such compositions are disclosed. The type and concentration of components in the composition affect the properties of cores made therefrom, including, for example, coefficient of restitution and compression, and, thus, can be used to produce golf balls having desirable performance characteristics.

Compositions including zinc salts of sulfur-based accelerators, combinations of zinc salts of sulfur-based accelerators, and golf ball cores made from such compositions are disclosed. The type and concentration of components in the composition affect the properties of cores made therefrom, including, for example, coefficient of restitution and compression, and, thus, can be used to produce golf balls having desirable performance characteristics.

A golf ball includes a core, an intermediate layer, and a cover, in which dimples and a land portion are formed on a cover surface, the core is formed of a rubber composition containing a base rubber and an specific organic peroxide, the land portion includes a large number of land portion pieces, one land portion piece has a shape having at least three vertexes, the land portion includes a land portion piece having a specific shape formed by connecting the land portion piece in point contact with another adjacent land portion piece at each of the vertexes, an outer peripheral edge of the land portion piece having the specific shape includes a plurality of edge elements, and a ratio of the number of land portion pieces having a unique shape in which all the edge elements are formed in a predetermined curve is adjusted within a predetermined range.

A golf ball has an alignment aid. The alignment aid has a first alignment feature having a plurality of first areas each in the shape of a first directional indicator. Each of the first areas has a pattern of non-base color elements that are each a second directional indicator. The alignment aid also has a second alignment feature having a base color third directional indicator formed in spaces between the plurality of first areas and defined by edges of at least some of the non-base color elements on two sides of the spaces such that for n first areas, the alignment aid comprises n−1 second alignment features. The first directional indicators, the second directional indicators, and the third directional indicators are simultaneously visible to a golfer viewing the golf ball from above and, in combination, orient the golf ball along a path that follows the target direction.

Golf balls including a core and a cover disposed on the core. The cover may be formed from a cover composition. The cover composition may include an isocyanate-containing component, a first isocyanate-reactive component, a second isocyanate-reactive component, and a chain extender. The first isocyanate-reactive component may be a polyether polyol such as polytetramethylene ether glycol. The second isocyanate-reactive component may be a polyphenylene ether polyol such as poly(2,6-dimethyl-1,4-phenylene ether) diol. The ratio of the first isocyanate-reactive component to the second isocyanate-reactive component ranges from about 90:10 to about 99:1. The chain extender may be a hydroxy-terminated chain extender or an amino-terminated chain extender.

The invention relates to the field of sporting goods, in particular to a high elasticity and restorability ball structure, which comprises a foamed ball core, wherein a reinforcing layer is arranged outside the foamed ball core, and a plurality of ball surface patches are bonded to the periphery of the reinforcing layer; the foamed ball core and / or the ball surface patches are prepared by using a supercritical foaming process, which ensures the roundness consistency and excellent elasticity and restorability during processing, as well as the roundness consistency after impact of external forces.

A method for measuring physical properties, e.g., firmness, smoothness, trueness, green speed, of a playing surface on a golf course, includes performing measurements via a measurement apparatus. The measurement apparatus includes a spherical sensor, which in turn includes an accelerometer for measuring motion data relating to motion of the spherical sensor, a memory for storing the motion data, and a communication module for wirelessly transmitting the motion data to a computing device.

To provide a rubber composition which yields a crosslinked rubber molding having good flexibility and excellent repulsion performance.SOLUTION: A rubber composition contains (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator, and (d) an organic sulfur compound. The organic sulfur compound (d) contains (d1) a compound represented by formula (1) and / or (d2) a compound represented by formula (2). [In the formulae (1) and (2), R1 and R2 may be the same or different and each represents an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an alkylthio group, a perfluoroalkyl group, an amino group, a carboxy group, a hydrogen atom, or a halogen atom; and R1 and R2 may be bonded to each other to form a cyclic structure.]SELECTED DRAWING: None

A golf ball has an alignment aid that is completely within a circumferential ring area having a width that is 10 mm or less. The alignment aid has a first alignment feature having a plurality of non-base color discontinuous lines. Each of the discontinuous lines are parallel to or on the path of the great circle such that the plurality of discontinuous lines are all oriented with a target direction. The alignment aid also has a second alignment feature having a base color directional indicator formed by a grouping of discontinuities in all the discontinuous lines. The non-base color discontinuous lines and the base color directional indicator are simultaneously visible to a golfer viewing the golf ball from above and, in combination, orient the golf ball along a path that follows the target direction.

The utility model discloses a kind of anti-skid silica gel balls of replaceable texture kit in the field of silica gel ball, including ball body and detachable fixing kit, the one end of ball body is provided with connecting rod, the surface of connecting rod is provided with several arc-shaped connecting parts, the one end of fixing kit is provided with fixed rod, the one end of fixed rod is provided with fixed part, the one end of fixed rod close to fixed part is provided with several with connecting part mutually adapted clamping block, the clamping block is inserted into connecting part and is buckled connection with connecting part;A kind of anti-skid silica gel ball of replaceable texture kit of the utility model, by connecting rod and fixing kit buckle type connection, by the fixed rod of fixing kit is aligned with connecting rod, and by the mode of first rotation then clamping, so that clamping block and connecting part are buckled connection, different texture fixing kit can be quickly replaced without tool, can adapt to different use scenarios.

The objective is to provide a golf ball that excels in initial ball speed and low spin, and has a good appearance with minimal visible surface damage. [Solution] A golf ball comprising a core, an intermediate layer, and a cover, wherein the cover surface has a plurality of dimples and land areas surrounded by the plurality of dimples, wherein the core is formed from a heat-molded product of a rubber composition containing a base rubber and an organic peroxide with a half-life temperature of 165°C or higher for one minute, and the land areas are composed of a plurality of land area pieces, each land area piece having a shape with at least three vertices, and including a land area piece of a specific shape in which the land area piece is substantially connected to an adjacent land area piece by a point at the vertices, the outer edge of the land area piece of the specific shape is composed of a plurality of edge elements, and the proportion of the number of land area pieces of a unique shape in which all of the edge elements are formed by a predetermined curve is adjusted to a predetermined range.

An object of the present disclosure is to provide a golf ball having improved durability and substantially not lowered resilience. The present disclosure provides a golf ball comprising a core and at least one cover layer positioned outside the core, wherein the at least one cover is formed from a cover composition containing one or more ionomer resins, the ionomer resin comprises a copolymer (P) having a structural unit (A) derived from ethylene and / or an α-olefin having 3 to 20 carbon atoms and a structural unit (B) having a carboxyl group and / or a dicarboxylic anhydride group as an essential constitutional unit, and at least a part of the carboxyl group and / or the dicarboxylic anhydride group in the copolymer (P) is neutralized with at least one kind of metal ion selected from Group 1, Group 2 and Group 12 in the periodic table, and a loss modulus E″ at a temperature of 0° C. is 3.40×107 Pa or less, wherein the loss modulus E″ at the temperature of 0° C. is determined by measuring a dynamic viscoelasticity of the cover composition under specific conditions.

It comprises a core and a cover, and the core comprises the following components (a) to (d). (a) Base rubber (b) Water and / or lower alcohols with a molecular weight of less than 200 (c) Unsaturated carboxylic acids and / or their metal salts (d) Organic peroxide A heat-molded rubber composition containing the following: (a) is a rubber obtained by mixing (a-1) polybutadiene and (a-2) an unneutralized ethylene-unsaturated carboxylic acid copolymer, followed by neutralization with (a-3) a metal oxide, wherein (a-2) is acrylic acid or methacrylic acid, the acid content of (a-2) is 5% by mass or more, the amount of (a-2) blended is 10 parts by mass or less per 100 parts by mass of the total of (a-1) and (a-2), and the difference between the crosslink density of the core surface and the crosslink density of the core center is 5.0 × 10 2 mol / m 3 That's all for golf balls. [Effect] According to the present invention, it is possible to achieve both low spin and excellent durability while maintaining high rebound properties.

Compositions including zinc salts of sulfur-based accelerators, combinations of zinc salts of sulfur-based accelerators, and golf ball cores made from such compositions are disclosed. The type and concentration of components in the composition affect the properties of cores made therefrom, including, for example, coefficient of restitution and compression, and, thus, can be used to produce golf balls having desirable performance characteristics.

A ball may include a spherical shell, apertures defined in the spherical shell, and a surface treatment defined on the spherical shell configured to reduce noise when the ball impacts a surface.

A method of optimizing golf club head and golf ball design is disclosed herein. The method includes inputting a RBF for stress, a RBF for CT and a RBF for ball speed into an Adaptive Simulated Annealing algorithm to generate an optimized structure for the club head for ball speed.

To provide a golf ball having a composition that improves shear durability without requiring additional materials or manufacturing processes. [Solution] The cover 16 is formed from a cover composition comprising an isocyanate-containing component, a first isocyanate-reactive component, a second isocyanate-reactive component, and a chain extender. The first isocyanate-reactive component may be a polyether polyol such as polytetramethylene ether glycol. The second isocyanate-reactive component may be a polyphenylene ether polyol such as poly(2,6-dimethyl-1,4-phenylene ether)diol. The ratio of the first isocyanate-reactive component to the second isocyanate-reactive component is in the range of about 90:10 to about 99:1. The chain extender may be a chain extender with a hydroxyl terminal group or a chain extender with an amino terminal group.

The present invention provides the rubber composition for a golf ball comprising (a) a base rubber, (b) a co-crosslinking agent which is an α,β-unsaturated carboxylic acid or a metal salt thereof or both, (c) a crosslinking initiator, and (d) an alcohol, wherein the amount of component (d) is from 0.1 to 10 parts by weight per 100 parts by weight of the base rubber (a) and the compounding ratio between component (b) and component (c) is set to at least 60 of E value that is represented by “E=the molar amount of component (b) / the molar amount of the active oxygen of component (c), and a golf ball using the rubber composition, in order to achieve the object that good durability of the golf ball to impact is maintained.

This disclosure relates to a golf ball, and more particularly to a golf ball designed to help a player align their shot with a target. [Solution] The golf ball has an alignment aid that is entirely within a circumferential ring region having a width of 10 mm or less. The alignment aid has a first alignment feature having a plurality of non-base color discontinuous lines. Each of the discontinuous lines is parallel to or on the path of a great circle so that all of the discontinuous lines are oriented in the target direction. The alignment aid also has a second alignment feature having a base color direction indicator formed by the group of discontinuous lines. The non-base color discontinuous lines and the base color direction indicator are visible to a golfer looking at the golf ball from above, and together they orient the golf ball along a path that follows the target direction.

The invention relates to the field of sporting goods, in particular to a hollow ball structure based on a supercritical process, which comprises a foamed ball core, a plurality of hollow cavities are formed inside or outside or inside and outside the foamed ball core, a reinforcing layer is arranged on the periphery of the foamed ball core, a ball surface patch layer is bonded to the periphery of the reinforcing layer, and the foamed ball core or / and the ball surface patch layer can be prepared by using a supercritical foaming process, which ensures the roundness consistency and excellent elasticity and restorability during processing, as well as the roundness consistency after impact of external forces.

The invention provides an article having a non-flat geometry, wherein the non-flat geometry can be a sphere or hemisphere formed from a thermoplastic polyurethane having a low tan delta a high rebound and wherein the article demonstrates low hysteresis. The article may be useful in applications such as tennis balls.

A method of printing on one or more side surfaces of a melamine bowl. One or more bowls are secured in an enclosure or protection jig, protecting the surface of each bowl, except the surface of the bo

An object of the present disclosure is, for a golf ball comprising a cover containing a polyurethane as a resin component, to improve formability of the cover and increase productivity of the golf ball while inhibiting lowering of scratch resistance of the cover. The present disclosure provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the cover is formed from a cover composition containing (A) a thermoplastic polyurethane and (B) a carboxylic acid having a molecular weight of 1000 or less as a resin component.

An object of the present disclosure is, for a golf ball comprising a cover containing a polyurethane as a resin component, to improve formability of the cover and increase productivity of the golf ball while suppressing lowering in scratch resistance of the cover. The present disclosure provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the cover contains (A) a thermoplastic polyurethane as a resin component, and a difference Δv (v1−v2) between a wave number (v1) of an absorption peak attributed to an N—H group not forming a hydrogen bond in (A) the thermoplastic polyurethane and a wave number (v2) of an absorption peak attributed to an N—H group forming a hydrogen bond with a carbonyl oxygen of a urethane group in (A) the thermoplastic polyurethane ranges from 100.0 cm−1 to 109.0 cm−1 when the cover is measured with a Fourier transform infrared spectrometer under the predetermined measuring conditions.

The application discloses a kind of composite polymer materials for lightweight tennis and its forming process, it relates to composite polymer material technical field, according to weight parts, formula is as follows: linear low density polyethylene 60-75 parts, metallocene polypropylene 15-25 parts, modified hollow glass microsphere 8-15 parts, nano calcium carbonate 3-8 parts, chopped glass fiber 2-5 parts, antioxidant 0.3-0.8 parts, lubricant 0.5-1.2 parts, ultraviolet resistance agent 0.2-0.6 parts;The composite polymer material for lightweight tennis realizes the unity of lightweight tennis and high mechanics performance, high rebound performance, while impact strength is increased by 15%-25%, hardness, wear resistance and rebound performance are significantly improved, not easy to deform, meet the use demand of competitive tennis.

A golf ball can include a core, a mid layer, and a cover. An amount P(Na) of a sodium ion-neutralized ionomer resin in abase resin of the cover can be not greater than 5 parts by mass. The golf ball can satisfy the following mathematical formulas (1) and (2):Fm / (Hm*Tm)-Fc / (Hc*Tc)≥3.,and(1)Mc*Tc≥10.,(2)whereHm: hardness (Shore D) of the mid layer,Tm: thickness (mm) of the mid layer,Fm: bending stiffness (MPa) of the mid layer,Tc: thickness (mm) of the cover,Fc: bending stiffness (MPa) of the cover, andMc: melt flow rate (g / 10 min) of the cover at a temperature of 190° C. under a load of 2.16 Kg.