Abstract:
Golf balls include an exterior cover having a plurality of dimples arranged thereon, wherein from 5 to 95% of the dimples have a non-uniform dimple profile. At least a majority of the dimples having a non-uniform dimple profile on the golf ball body may be arranged in 2-24 repeating dimple clusters on the exterior surface of the ball. In some example structures, the exterior surface of the ball will include from 4-18 repeating dimple clusters, from 4-12 repeating dimple clusters, or even from 6-10 repeating dimple clusters.
Abstract:
Based on a surface shape appearing at a predetermined point moment by moment during rotation of a golf ball having numerous dimples on its surface, a data constellation regarding a parameter dependent on a surface shape of the golf ball is calculated. Preferably, the parameter is a distance between an axis of the rotation and the surface of the golf ball. Another preferable parameter is a volume of space between a surface of a phantom sphere and the surface of the golf ball. Based on a maximum value and a minimum value of the data constellation, a fluctuation range is calculated. By dividing the fluctuation range by a total volume of the dimples, an evaluation value is calculated. This value is calculated for each of PH rotation and POP rotation.
Abstract:
A golf ball including a composition having an unsaturated polymer, a cross-linking agent, a peptizer, and an accelerator. The composition can be incorporated into the golf ball's core, intermediate layers, and cover layers, and can provide optimal performance and durability properties. The golf balls incorporating the composition are easy to manufacture.
Abstract:
A golf ball (20) having a low volume cover layer (14) is disclosed herein. The golf ball (20) has a cover layer (14) with a volume less than 0.1550 cubic inches. In a preferred embodiment, the cover layer (14) is composed of a reaction-injection molded polyurethane material. Preferably, the cover layer (14) has a plurality of deep depressions (99) with either a plurality of multi-faceted polygons (44) or dimples.
Abstract:
A golf ball (20) approaching zero land area is disclosed herein. The golf ball (20) has an innersphere with a plurality of primary lattice members (40) and a plurality of sub-lattice members (41). Each of the plurality of primary lattice members (40) has an apex and the golf ball (20) of the present invention conforms with the 1.68 inches requirement for USGA-approved golf balls. The interconnected primary lattice members (40) and plurality of sub-lattice members (41) preferably form a plurality of dual polygons, preferably dual hexagons and dual pentagons.
Abstract:
A golf ball (20) having a low volume cover layer (14) is disclosed herein. The golf ball (20) has a cover layer (14) with a volume less than 0.1550 cubic inches. In a preferred embodiment, the cover layer (14) is composed of a reaction-injection molded polyurethane material. Preferably, the cover layer (14) has a plurality of deep depressions (99) with either a plurality of multi-faceted polygons (44) or dimples.
Abstract:
A golf ball (20) approaching zero land area is disclosed herein. The golf ball (20) has an innersphere with a plurality of primary lattice members (40) and a plurality of sub-lattice members (41). Each of the plurality of primary lattice members (40) has an apex and the golf ball (20) of the present invention conforms with the 1.68 inches requirement for USGA-approved golf balls. The interconnected primary lattice members (40) and plurality of sub-lattice members (41) preferably form a plurality of dual polygons, preferably dual hexagons and dual pentagons.
Abstract:
A novel composition useful for golf ball covers that comprises a blend of a dilsocyanate/polyol polyurethane prepolymer with a curing agent comprising a blend of slow-reacting diamine with a fast-reacting diamine such as dimethylthio 2,4-toluenediamine and diethyl 2,4-toluenediamine, respectively. A golf ball cover made with this composition exhibits the characteristic feel and playability of a balata cover with superior durability characteristics (cut and shear resistance) which exceed those of a balata or ionomer cover.
Abstract:
Disclosed herein is a golf ball comprising fast-chemical-reaction-produced component, such as a component which comprises a reaction injection molded polyurethane material. A process of making a golf ball by forming at least one core and/or cover component of the ball by mixing two or more reactants that react and form a reaction product with a flex modulus of 5-310 kpsi in a reaction time of about 5 minutes or less, the component having a thickness of at least 0.01 inches and a demold time of 10 minutes or less is disclosed. In one preferred form of the invention, excess polyurethane from forming golf ball covers is recycled by using it to form golf ball cores.
Abstract:
A golf ball material comprises a heated mixture having a melt index of at least 1.0 dg/min, which mixture is composed of (A) a thermoplastic resin, (B) a fatty acid or fatty acid derivative having a molecular weight of at least 280, and (C) a basic inorganic metal compound capable of neutralizing acidic groups in components A and B. The material including a highly neutralized ionomer resin has good thermal stability, flow characteristics and moldability. The invention is also directed at high-rebound golf balls which can be easily and efficiently manufactured using the same material.