摘要:
Golf balls having a core comprising a polyalkenamer rubber composition are provided. 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 and provides the ball with a comfortable and soft feel. In one version, a solid, single core having an outer surface and geometric center is provided, wherein the outer surface has a hardness greater than the hardness of the geometric center to define a positive hardness gradient of at least 10 Shore C. In a second version, a dual-core having an inner core and surrounding outer core layer is provided. The inner core has a positive hardness gradient, while the outer core has a zero; negative; or positive hardness gradient.
摘要:
A golf ball including a core and a cover disposed adjacent the core, the cover including an ionomeric thermoplastic inner cover layer disposed about the core and having a hardness of 55 Shore D to 60 Shore D; a castable thermoset polyurethane outer cover layer having a hardness between 55 Shore D and 60 Shore D; and a non-ionomeric thermoplastic intermediate cover layer disposed between the inner and outer cover layers, the non-ionomeric intermediate cover layer being formed of a polyester/polycarbonate blend and having a hardness greater than both the inner and outer cover layers; wherein the inner cover layer has a first thickness, the outer cover layer has a second thickness, and the intermediate cover layer has a third thickness less than the first or second thickness by at least 20%.
摘要:
The invention is directed to a method of making a golf ball comprising the steps of: providing a core comprising at least one layer; forming a cover about the core comprising at least one cover layer comprising a cover inner surface and a cover outer surface and having a thickness D; treating the cover outer surface with a fatty acid and/or fatty acid salt composition and forming a treated cover region which extends inward from the cover outer surface a penetration depth DCTr, an untreated cover region being disposed between the cover inner surface and the treated cover region and having a depth (DCUTr)=(D)−(DCTr); wherein the treated cover region has a hardness α and the untreated cover region has a hardness β different than the hardness α. In another embodiment, the method may alternatively comprise the step of treating the cover inner surface with a fatty acid and/or fatty acid salt composition and forming a treated cover region which extends inward from the cover outer surface a penetration depth DCTr, an untreated cover region being disposed between the cover inner surface and the treated cover region and having a depth (DCUTr)=(D)−(DCTr); wherein the treated cover region has a hardness α and the untreated cover region has a hardness β different than the hardness α. In yet another embodiment, the method of making the golf ball comprises the steps of providing a core comprising at least one layer; forming a cover about the core comprising at least one cover layer comprising a cover inner surface having a hardness β and a cover outer surface having a hardness α; treating the cover outer surface with a fatty acid and/or fatty acid salt composition and forming a treated cover outer surface comprising the fatty acid and/or fatty acid salt composition wherein the treated cover outer surface has a hardness α′ different from hardness α; and wherein hardness β is different than at least one of hardness α and hardness α′.
摘要:
A golf ball comprising a core and at least one cover layer disposed about the core, the core comprising a geometric center and an outer surface, the core further comprising an untreated region extending radially from the geometric center a predetermined distance DUTr and a treated region disposed about the untreated region and extending inward from the outer surface a predetermined depth DTr. The treated region has been exposed to and comprises a fatty acid and/or fatty acid salt composition wherein the treated region comprises a first hardness and the untreated region comprises a second hardness different than the first hardness. Additionally, a golf ball comprising a core and a cover, the core comprising a geometric center and an outer surface, the outer surface comprising a fatty acid and/or fatty acid salt composition, the geometric center having a hardness (Hg) and the outer surface having an extrapolated hardness (HE) and an actual hardness (HOS) wherein HE is derived from a five point extrapolation within three quarters of an outer core diameter and HOS as measured on the curved surface of the core, and the cover has a hardness (HC), wherein HC>HE>Hg>HOS.
摘要翻译:一种高尔夫球,其包括芯和围绕所述芯设置的至少一个覆盖层,所述芯包括几何中心和外表面,所述芯还包括从几何中心径向延伸预定距离DUTr的未处理区域和设置的处理区域 围绕未处理区域并从外表面向内延伸预定深度DTr。 经处理的区域已经暴露于并包含脂肪酸和/或脂肪酸盐组合物,其中处理区域包含第一硬度,未处理区域包含不同于第一硬度的第二硬度。 另外,包括芯和盖的高尔夫球,所述芯包括几何中心和外表面,所述外表面包含脂肪酸和/或脂肪酸盐组合物,所述几何中心具有硬度(Hg)和外部 具有外推硬度(HE)和实际硬度(HOS)的表面,其中HE来自于在芯的曲面上测量的外芯直径和HOS的四分之三内的五点外推,并且该盖具有硬度 (HC),其中HC> H 2> HOS。
摘要:
A golf ball comprising a core and a cover, the core comprising an outer surface and a geometric center, the outer surface being treated with and comprising a fatty acid and/or fatty acid salt composition, the outer surface further having a first hardness and the geometric center having a second hardness, wherein the first hardness is the same as or different than the second hardness.
摘要:
Disclosed herein is a multi-layer golf ball having a soft outer cover. The golf ball has an inner cover layer with a Shore D hardness of 60 or more, and an outer cover with a Shore D hardness of 55 or less, and more preferably 50 or less. In a particularly preferred form of the invention, the outer cover comprises one or more polyurethane materials. The golf ball of the invention has exceptionally soft feel and high spin rates on short shots of 80 yards or less, and particularly, 40 yards or less, while maintaining good distance and average spin on full shots.
摘要:
Disclosed herein is a multi-layer golf ball having a soft outer cover. The golf ball has an inner cover layer with a Shore D hardness of 60 or more, and an outer cover with a Shore D hardness of 55 or less, and more preferably 50 or less. In a particularly preferred form of the invention, the outer cover comprises one or more polyurethane materials. The golf ball of the invention has exceptionally soft feel and high spin rates on short shots of 80 yards or less and, particularly, 40 yards or less, while maintaining good distance and average spin on full shots.
摘要:
Disclosed herein is a multi-layer golf ball having a soft outer cover. The golf ball has an inner cover layer with a Shore D hardness of 60 or more, and an outer cover with a Shore D hardness of 55 or less, and more preferably 50 or less. In a particularly preferred form of the invention, the outer cover comprises one or more polyurethane materials. The golf ball of the invention has exceptionally soft feel and high spin rates on short shots of 80 yards or less, and particularly, 40 yards or less, while maintaining good distance and average spin on full shots.
摘要:
Disclosed herein are a novel thermoplastic material and a golf ball utilizing the thermoplastic material of the invention. The golf ball (10) preferably comprises a core (12), a cover (16) and, optionally, a boundary layer (14). At least one of the core (12), cover (16) or boundary layer (14) of the golf ball (10) comprises a thermoplastic material according to the invention. A thermoplastic material of the invention comprises a partially to highly neutralized blend of an acid copolymer, a copolymer comprising a metallocene-catalyzed alpha-olefin and a softening comonomer, and a fatty acid or fatty acid salt.
摘要:
Disclosed herein is a multi-layer golf ball having a soft outer cover. The golf ball has an inner cover layer with a Shore D hardness of 60 or more, and an outer cover with a Shore D hardness of 55 or less, and more preferably 50 or less. In a particularly preferred form of the invention, the outer cover comprises one or more polyurethane materials. The golf ball of the invention has exceptionally soft feel and high spin rates on short shots of 80 yards or less, and particularly, 40 yards or less, while maintaining good distance and average spin on full shots.