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:
The present invention is directed to a golf ball comprising a dual core component, an inner cover layer and an outer cover layer. The dual core comprises an interior spherical center component formed from a thermoset material, a thermoplastic material, or combinations thereof. The dual core also comprises a core layer disposed about the center component, formed from a thermoset material, a thermoplastic material, or combinations thereof. The one or more polyurethane layers are preferably formed via a reaction injection molding (RIM) technique. The inner cover layer is relatively soft and preferably comprises an ionomer or ionomer blend. The outer cover layer is relatively hard and comprises a hard polyurethane. The resulting multi-layered golf ball of the present invention provides for enhanced distance without sacrificing playability or durability when compared to known multi-layer golf balls.
摘要:
Disclosed herein is a golf ball utilizing a core that comprises at least two particular types of polybutadiene. In one aspect, a combination of a polybutadiene obtained from a cobalt catalyst is used in conjunction with a polybutadiene obtained from a neodymium catalyst. Also disclosed are golf balls comprising particular cover compositions. In one aspect, a cover composition is disclosed that includes a sodium ionomer, a magnesium ionomer, and a zinc ionomer. The golf balls exhibit improved distance while providing a soft sound and feel.
摘要:
Disclosed herein is a game ball and method for making the same. The game ball has an unneutralized terpolymer resin cover that has been irradiated. The unneutralized terpolymer resin includes ethylene, acrylic or methacrylic acid, and a third component selected from the group of lower alkyl acrylates and lower alkyl methacrylates. The irradiated unneutralized terpolymer resin cover is superior in at least one of cut resistance and scuff resistance to a cover substantially identical in composition but which has not been irradiated. The game ball cover of the invention is particularly useful for improving the durability of golf balls to be struck with sharp-grooved clubs.
摘要:
A golf ball core formed from a composition including a (i) cobalt catalyzed polybutadiene and (ii) a blend of lanthanide catalyzed polybutadienes having Mooney viscosities of about 30-70.
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 at least 75% of a soft copolymer formed from a polyolefin, an unsaturated carboxylic acid, and a monomer of the acrylate ester class. 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 heterogeneous golf ball compositions comprising a thermoplastic matrix and discrete particles of crosslinked polymer dispersed within the matrix.