摘要:
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 rubber composition helps improve resiliency of the core and provides the ball with a comfortable and soft feel.
摘要:
A multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient in addition to an overall specific hardness gradient from one core layer to the next. The inner core layer comprises a plurality of hardnesses of from about 50 Shore C to about 90 Shore C, a diameter of about 30 mm or lower, and a geometric center comprising a hardness greater than that of a first outer surface to define a negative hardness gradient of about 15 Shore C or greater. The outer core layer comprises a plurality of harnesses of from about 50 Shore C to about 95 Shore C, a thickness of about 10 mm or lower, and a second outer surface comprising a hardness greater than that of an inner surface to define a positive hardness gradient of about 20 Shore C or greater. A further outer core layer hardness, disposed in a region extending between about 10% and about 90% of the distance from the inner surface to the second outer surface, is greater than that of the inner and second outer surfaces. Also, the hardness of the second outer surface is similar to or less than that of the geometric center.
摘要:
The present invention is directed to a golf ball having at least one layer formed from a rubber composition comprising a base rubber, at least 0.05 parts by weight of a free radical initiator, per 100 parts of the base rubber, and at least 0.1 parts by weight of a benzoquinone, per 100 parts of the base rubber. The rubber composition may be present in any one or more of a core layer, a cover layer, or an intermediate layer.
摘要:
The present invention is directed to a golf ball having at least one layer formed from a rubber composition comprising a base rubber, a free radical initiator, and a catechol. The present invention is also directed to a golf ball having at least one layer formed from a rubber composition comprising a base rubber, a free radical initiator, and a resorcinol. Rubber compositions of the present invention may be present in any one or more of a core layer, a cover layer, or an intermediate layer.
摘要:
A golf ball comprising a core having an outer surface and a geometric center and being formed from a substantially homogenous formulation throughout; intermediate layer; and a cover layer; wherein the surface and center have a hardness, the hardness of the surface being substantially the same as or lower than the hardness of the center, and wherein a ratio of antioxidant to initiator used in said formulation is greater than about 0.40 when normalized to 100% activity.
摘要:
A golf ball comprising a core having an outer surface and a geometric center and being formed from a substantially homogenous formulation throughout; intermediate layer; and a cover layer; wherein the surface and center have a hardness, the hardness of the surface being substantially the same as or lower than the hardness of the center, and wherein a ratio of antioxidant to initiator used in said formulation is greater than about 0.40 when normalized to 100% activity.
摘要:
Golf balls golf balls containing a core having at least two layers made from a polyalkenamer rubber composition are provided. At least one layer is made from a relatively low modulus polyalkenamer rubber composition and at least one layer is made from a relatively high modulus polyalkenamer rubber composition. The rubber composition may further include other rubbers such as, for example, polybutadiene, polyisoprene, ethylene propylene rubber, ethylene propylene diene rubber, and styrene-butadiene rubber. The rubber composition helps improve resiliency of the core. In one version, a dual-core having an inner core and surrounding outer core layer is provided. In another version, the golf ball contains a three-piece core having an intermediate core layer made of polybutadiene rubber.
摘要:
A golf ball comprising a single layer core being formed from a substantially homogenous formulation, the inner core region has a first hardness (IC1h), the outer core region has a second hardness (OC2h), the intermediate core region has third and fourth hardnesses (IMC3h) and (IMC4h), respectively, such that the third hardness is less than the first and second hardnesses, represented by the relationships (IMC3h) (IC1h) and (IMC4h)>(OC2h), and hardness of the outer surface (OSh) is greater than a hardness of the geometric center (GCh), represented by the relationship (OSh)>(GCh).
摘要:
The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next.
摘要:
The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next.