摘要:
The present invention is directed to golf balls having a layer formed from a relatively soft HNP composition and a layer formed from a relatively hard HNP composition. Golf balls of the present invention have at least three layers, including an inner core layer, an outer core layer, a cover, and optionally an intermediate core layer. The present invention is not limited by which golf ball layers are formed from an HNP composition, so long as at least one layer is formed from a relatively soft HNP composition and at least one layer is formed from a relatively hard HNP composition. Relatively soft HNP compositions of the present invention comprise a highly neutralized acid copolymer preferably having a modulus of from 1,000 psi to 50,000 psi. Relatively hard HNP compositions of the present invention comprise a highly neutralized acid copolymer preferably having a modulus of from 25,000 psi to 150,000 psi.
摘要:
A launch monitor system including a support structure, a first light-reflecting element disposed on this support structure, a lighting unit and an camera unit. A computer receives signals generated by light patterns received by the camera unit and computes a variety of flight characteristics for the object. The system may be moved back and forth to vary the field-of-view of the camera unit. The system also computes and displays object trajectories from the computed flight characteristics which account for the characteristics of the object and the atmospheric conditions.
摘要:
The present invention is directed to an improved multi-layer golf ball displaying enhanced playing characteristics, including high speed, high launch, and low spin. In general the golf ball displays improved performance in areas such as distance and feel for lower swing speed players. The ball has a relatively large solid inner core, with at least one solid outer core layer surrounding the inner core, and a thin cover layer surrounding the outermost core layer. The inner core is softer than the outer core, which in turn is softer than the cover. The ball may be designed such that the coefficient of restitution (COR) gradient is from slow to fast; that is, the inner core has a lower COR than the total core, which has a lower COR than the entire golf ball.
摘要:
The present invention is directed to golf balls having a layer formed from a low modulus HNP composition and a layer formed from a high modulus HNP composition. Golf balls of the present invention have at least three layers, including an inner core layer, an outer core layer, a cover, and optionally an intermediate core layer. The present invention is not limited by which golf ball layers are formed from an HNP composition, so long as at least one layer is formed from a low modulus HNP composition and at least one layer is formed from a high modulus HNP composition. Low modulus HNP compositions of the present invention comprise a highly neutralized acid copolymer having a modulus of from 1,000 psi to 50,000 psi. High modulus HNP compositions of the present invention comprise a highly neutralized acid copolymer having a modulus of from 25,000 psi to 150,000 psi.
摘要:
A golf ball is provided having a modified density gradient among the inner layers to produce a desired high or low moment of inertia and controlled spin rate is disclosed. The golf ball has three or more inner layers in addition to a cover, and the density of the inner layers is selected such that the layers inside the cover have a density progression from the core to the cover or from the cover to the core.
摘要:
A golf ball comprising a core and a cover disposed about the core, wherein the core comprises a center and at least one outer core layer adjacent the center, and the cover comprises at least one inner cover layer and an outer cover layer; wherein the center has an outer diameter of 0.375 inches to 1.4 inches; the outer core layer has an outer diameter of 1.4 inches to 1.62 inches; the inner cover layer has an outer diameter of 1.58 inches or greater and a material hardness of 72 Shore D or less; and the outer cover layer has a material hardness of 55 Shore D or less; and wherein the center has a first hardness, the outer core layer has a second hardness greater than the first, and the inner cover layer has a third hardness greater than the second.
摘要:
A golf ball comprising a core and a cover disposed about the core, wherein the core comprises a center and at least one outer core layer adjacent the center, and the cover comprises at least one inner cover layer and an outer cover layer; wherein the center has an outer diameter of 0.375 inches to 1.4 inches; the outer core layer has an outer diameter of 1.4 inches to 1.62 inches; the inner cover layer has an outer diameter of 1.58 inches or greater and a material hardness of 72 Shore D or less; and the outer cover layer has a material hardness of 55 Shore D or less; and wherein the center has a first hardness, the outer core layer has a second hardness greater than the first, and the inner cover layer has a third hardness greater than the second.
摘要:
A golf ball comprising a substantially spherical outer surface and a plurality of dimples formed thereon is provided. The dimples include polygonal dimples that are arranged such that the sides of adjacent polygonal dimples are substantially parallel to each other, and wherein the land area comprises first spacings and second spacings between adjacent dimples. The first spacings and the second spacings have substantially constant width between any two adjacent dimples and the width of the first spacings is different from the width of the second spacings. Circular dimples and circular land areas may also be included in the dimple pattern. The dimple pattern is easily adjusted to manipulate the aerodynamic efficiency of the golf ball.
摘要:
The present invention provides high moment of inertia golf balls comprising a low specific gravity core layer formed from a moisture resistant composition. The moisture resistant composition has a moisture vapor transmission rate (MVTR) of 12.5 g·mil/100 in2/day or less and comprises a highly neutralized acid polymer. Golf balls of the invention have a moment of inertia of 85 g·cm2 or greater.
摘要翻译:本发明提供了由耐湿组合物形成的包括低比重芯层的高惯性高尔夫球。 耐湿组合物在2天/天以内的湿气透过率(MVTR)为12.5g.mil / 100或更低,并且包含高度中和的酸性聚合物。 本发明的高尔夫球具有85g / cm 2以上的惯性矩。
摘要:
A golf ball comprising a center comprising a polybutadiene having a molecular weight of greater than 200,000 and a resilience index of at least about 40; and a cover layer comprising a polyurethane composition formed from a prepolymer having no greater than 7.5 percent by weight unreacted isocyanate groups.