Abstract:
Low compression golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises at least three layers, including at least one thermoset layer and at least one thermoplastic layer.
Abstract:
Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a layer formed from a highly neutralized polymer composition, a layer formed from an additional thermoplastic composition, and an outermost layer formed from a thermoset rubber.
Abstract:
Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a center and an outer core layer that are both soft relative to a hard intermediate core layer. The Shore C hardness of the outer surface of the center is preferably less than the Shore C hardness of the geometric center of the center.
Abstract:
Multi-piece golf balls having a core made of a polybutadiene rubber blend are provided. The golf ball contains a multi-layered core. The inner core is formed from a blend containing a non-metallocene catalyzed polybutadiene rubber and metallocene-catalyzed polybutadiene rubber. The surrounding outer core layer is made of a non-metallocene-catalyzed polybutadiene rubber. Catalysts such as neodymium, nickel, and cobalt based catalysts may be used to make the non-metallocene catalyzed rubber. Catalysts such as ferrocene, cobaltocene, nickelocene, titanocene dichloride, zirconocene dichloride, and samraocene based catalysts may be used to make the metallocene-catalyzed rubber. The multi-layered core is surrounded by a cover having at least one layer. The resulting ball has high resiliency and a soft compression feel.
Abstract:
Golf ball comprising a core wherein the geometric center has a hardness X of from about 40 Shore C to about 75 Shore C and the first outer surface has a hardness Y of from about 75 Shore C to about 95 Shore C such that (15 Shore C)
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 and outer core layers are preferably formed from non-foamed thermoset compositions such as polybutadiene rubber. The core layers have different hardness and specific gravity levels. The core structure and resulting ball have relatively good resiliency.
Abstract:
Multi-layer golf balls having a soft, low compression center; a soft, flexible outer cover layer; and a relatively hard, high compression intermediate layer disposed between the center and the outer cover layer are provided. The outer surface hardness of the intermediate layer is greater than that of both the center and the outer cover layer.
Abstract:
Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a center and an outer core layer that are both soft relative to a hard intermediate core layer. The Shore C hardness of the outer surface of the center is preferably less than the Shore C hardness of the geometric center of the center.
Abstract:
A golf ball comprising an inner core formed from a substantially homogenous composition such that the geometric center hardness is 56-80 Shore C and the outer surface hardness is 50-75 Shore C. An outer core layer has an outer surface having hardness of 85-98 Shore C and an inner surface hardness of 68-78 Shore C and being formed from a second homogenous rubber composition. A cover layer is disposed about the outer core layer. The hardness of the second outer surface is greater than the hardness of the inner surface to define a positive hardness gradient of +7 to +30 Shore C, and the hardness of the first outer surface is lower than the hardness of the geometric center to define a negative hardness gradient of −1 to −15 Shore C.
Abstract:
Multi-piece golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane. The outer core layer is preferably formed from a non-foamed thermoplastic composition such as ethylene acid copolymer ionomer. Preferably, the specific gravity (density) of the foam inner core is less than the density of the outer core layer. The ball further includes a cover of at least one layer and may include at least one casing layer. The core structure and resulting ball have relatively good resiliency.