Abstract:
Multi-layered golf balls having a dual-layered core and cover of at least one layer are provided. The dual-core construction includes a non-foamed inner core (center) made of a thermoplastic or thermoset composition such as polybutadiene rubber. An outer core layer comprising a foamed composition, such as polyurethane foam, is disposed about the inner core. In one version, the foamed outer core layer is made of a relatively soft foam composition having low flex modulus and density. The foamed outer core layer may specific gravity gradient within the layer, wherein the outer surface specific gravity is greater than the midpoint specific gravity. A cover may be disposed about the core structure. For example, an inner cover made of ethylene acid copolymer ionomer and outer cover made of polyurethane may be used.
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 foamed and non-foamed thermoset compositions. For example, the intermediate core can be formed from a thermoset rubber so there are adjoining foam core layers (inner and intermediate) and the outer core layer can be formed from a non-foamed thermoset 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:
The present invention is directed a golf ball comprising a core and a cover and an optional intermediate layer disposed between the core and cover, wherein at least one of the core and the intermediate layer comprises any Pantone Matching System color including blue, green, yellow, pink, or orange having an L* value of about 80 or less; and wherein the cover comprises a translucent thermoset polyurethane material and an amount of pigment or dye such that the cover has any Pantone Matching System color including blue, green, yellow, pink, or orange that has an L* value of about 80 or less. The thermoset polyurethane material may be formed from an aliphatic isocyanate-based composition.
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 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 made of a foamed silicone composition and a cover are provided. For example, three-piece, four-piece, and five-piece golf balls containing different core structures can be made. Preferably, a dual-core having has a silicone foam inner core (center) and surrounding thermoset or thermoplastic outer core layer is made. The silicone foam center has good thermal stability and durability without sacrificing resiliency. The surrounding outer core layer may be made from non-foamed or foamed compositions. For example, silicone foams, polyurethanes, polybutadiene rubber, or highly neutralized olefin acid copolymers may be used in the outer core layer.
Abstract:
A golf ball having improved adhesion comprising: a core; a first layer surrounding the core; a tie layer surrounding at least a portion of an outer surface of the first layer and consisting of a mixture of a polyfunctional aziridine compound and a solvent; and a second layer that is different than the first layer formed about the tie layer. The first layer may consist of a non-urethane composition whereas the second layer consists of at least one urethane composition. The first layer may comprise a non-urethane composition whereas the second layer consists of at least one urethane composition. The first layer may consist of a non-urethane composition while the second layer comprises a urethane composition. The first layer may comprise an ionomer for example. The solvent may be aprotic. Alternatively, the solvent may be protic.
Abstract:
Golf ball multi-layered core sub-assemblies and the resulting golf balls are provided. The core structure includes a foam inner core (center); and intermediate and outer core layers. Foamed polyurethane is preferably used to make the inner core. The intermediate and outer core layers are preferably made from non-foamed thermoplastic compositions such as ethylene acid copolymer ionomers that are partially or highly neutralized, polyester-polyether block copolymers, polyether-amide block copolymers, and blends thereof. The core layers have different hardness and specific gravity levels. The ball further includes a cover having at least one layer. The core structure and resulting ball have relatively good resiliency.
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 assembly preferably has a positive hardness gradient extending across the entire assembly. The core structure and resulting ball have relatively good resiliency.
Abstract:
A golf ball comprising a core, a casing layer surrounding the core, a cover layer disposed about the casing layer, and three coating layers CL1, CL2, and CL3 disposed about the cover layer, wherein the respective compositions and color appearances of the cover, casing, CL1, CL2, and CL3 each contribute a color appearance to an overall golf ball color appearance CAOA having a color stability difference ΔEcmc as measured in the CIELAB color space in a QUV after 24 hrs of less than 1.5 units, or less than 1.2 units, or less than 1.15 units or up to 1.0 units.
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 assembly preferably has a positive hardness gradient extending across the entire assembly. The core structure and resulting ball have relatively good resiliency.