Abstract:
Multi-layered golf balls having a core made of a foamed polyurethane composition are provided. The ball includes a dual-layered core having a foam inner core (center) and surrounding outer core layer. The outer core layer may be made from a non-foamed thermoset material such as polybutadiene rubber. The ball further includes an inner cover, preferably made from a thermoplastic ionomer. The outer cover may be made from a non-foamed thermoset or thermoplastic material such as polyurethane. The core and inner cover layers preferably have different densities so the Moment of Inertia of the ball is adjusted. Preferably, the specific gravity of the inner cover is greater than the specific gravity of the outer core, which is greater than the specific gravity of the inner core. The finished ball has good distance and low-spin properties.
Abstract:
A method and golf ball incorporating a surface penetrating color composition comprising a colorant (e.g. dyes, tints, color effects, etc.) in a portion (surface or region) of a golf ball component or coating (substrate). The substrate is formed from a homogenous composition having a color C1 which may comprise any color within the spectrum of visible light, or be clear colorless, and alternatively, may also be opaque, translucent, or clear colored, for example. An outer surface of the substrate is treated with or otherwise exposed to a surface penetrating color composition having a C2 that is different than C1 in some respect such as hue, chroma, saturation and/or opacity. The surface penetrating color composition penetrates the golf ball substrate surface to a target depth and becomes embedded within the surface, thereby forming a surface penetrating color composition-treated component or coating having a treated region and an untreated region.
Abstract:
Golf balls having a very high positive gradient multilayer core are provided. The multilayer core includes an outer core layer and a very soft, low compression inner core layer. The inner core layer is formed from an unfoamed composition and has a center hardness that is at least 40 Shore C points less than the outer surface hardness of the outer core layer.
Abstract:
Multi-layered golf ball core sub-assemblies and the resulting golf balls are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane. The intermediate core layer is preferably formed from a thermoplastic composition such as an ethylene acid copolymer ionomer resin; and the outer core layer is preferably formed from a thermoset composition such as polybutadiene rubber. The core layers have different hardness and specific gravity levels. The core assembly preferably has a positive hardness gradient extending across the entire assembly. The core structure and resulting ball have relatively good resiliency.
Abstract:
Multi-piece golf balls having a solid core and cover are provided. The ball contains a small, heavy inner core and surrounding outer core layer. The inner core preferably contains metal materials such as copper, steel, brass, tungsten, titanium, nickel, iron, tin, and bronze particles. The outer surface of the inner core preferably has a non-uniform structure and includes projecting members. For example, the outer surface may contain multiple projecting ribs with gaps located between the ribs. The ball includes a cover surrounding the core structure. The cover may be multi-layered.
Abstract:
The present invention generally relates to golf balls and more particularly to golf balls having multi-layered cores comprising a thermoset rubber center, a thermoplastic intermediate core layer, and a thermoset rubber outer core layer. A cover layer is disposed about the multi-layered core. At least one of the center, intermediate core layer, and outer core layer comprises a polyalkenamer rubber. The polyalkenamer rubber may be blended with other rubbers such as polybutadiene, polyisoprene, ethylene propylene diene, and styrene-butadiene rubbers. The polyalkenamer rubber composition helps improve resiliency of the core and provides the ball with a comfortable and soft feel.
Abstract:
A method and golf ball incorporating a surface penetrating color composition comprising a colorant (e.g. dyes, tints, color effects, etc.) in a portion (surface or region) of a golf ball component or coating (substrate). The substrate is formed from a homogenous composition having a color C1 which may comprise any color within the spectrum of visible light, or be clear colorless, and alternatively, may also be opaque, translucent, or clear colored, for example. An outer surface of the substrate is treated with or otherwise exposed to a surface penetrating color composition having a C2 that is different than C1 in some respect such as hue, chroma, saturation and/or opacity. The surface penetrating color composition penetrates the golf ball substrate surface to a target depth and becomes embedded within the surface, thereby forming a surface penetrating color composition-treated component or coating having a treated region and an untreated region.
Abstract:
Multi-piece golf balls having a solid core of at least one layer and cover of at least one layer are provided. At least one of the core layers comprises a thermoplastic ionomer composition, preferably a highly neutralized ethylene acid copolymer. And, at least one of the core layers comprises a thermoplastic polyamide composition. In one embodiment, the polyamide composition is used to form the inner core and the ionomer composition is used to form the outer core layer. Preferably, the polyamide composition has a flex modulus of 90,000 psi or greater; and the ionomer composition has a flex modulus of 80,000 psi or less. The resulting ball has high resiliency and rebounding properties.
Abstract:
A golf ball comprising a single layer core formed from a substantially homogenous formulation and comprising a geometric center and an outer surface; a hardness of the outer surface is greater than a hardness of the geometric center. An inner core region is disposed about the geometric center and has a first hardness that is less than those of the geometric center and the outer surface; an outer core region is adjacent the outer surface and has a second hardness that is greater than those of the geometric center and the outer surface; and an intermediate core region is disposed between the inner and outer core regions and extends radially from about 5 mm to about 15.75 mm from the geometric center and has at least a third hardness and a fourth hardness, each of which are related to the first hardness and the second hardness in various ways.
Abstract:
A golf ball including a core; an inner cover layer formed from a thermoplastic composition and having a thickness of about 0.005 inches to 0.40 inches and a surface hardness of about 60 Shore D or greater; and an outer cover layer formed from a thermoset material and having a thickness of about 0.01 inches to 0.05 inches and a surface hardness of about 60 Shore D or less. The thermoplastic composition has a first melt flow index at 280° C. under a 10-kg load of less than about 35 g/10 min and a second melt flow index at 265° C. under a 5-kg load of less than about 10 g/10 min.
Abstract translation:包括芯的高尔夫球; 由热塑性组合物形成并具有约0.005英寸至0.40英寸的厚度和约60肖氏D或更高的表面硬度的内覆层; 以及由热固性材料形成并且具有约0.01英寸至0.05英寸的厚度和约60肖氏D或更低的表面硬度的外覆盖层。 热塑性组合物在280℃下的第一熔体流动指数在小于约35g / 10min的10kg负载下和在265℃下的第二熔体流动指数在5kg负荷下小于约 10 g / 10 min