Abstract: A golf ball core for use in a multi-piece golf ball includes a solid sphere and between 100 and 300 spaced polygonal protrusions extending from the solid sphere in a radially outward direction. The sphere is substantially formed from an ionomeric material, and has a diameter (D) of between 24 mm and 32 mm. The polygonal protrusions extend from the sphere by a maximum distance of between 0.15 mm and 1.0 mm.

Abstract: A method of manufacturing a multi-layer golf ball includes injection molding a core from an ionomeric thermoplastic material such that the core has an outer surface that includes a plurality of depressions extending radially inward from a spherical land portion, with each depression having a maximum depth relative to the spherical land portion of between 0.15 mm and 2.0 mm. The core is then positioned between a first hemispherical shell and a diametrically opposed second hemispherical shell, which are each formed from a rubber material. The first and second hemispherical shells are then compression molded such that rubber material conforms to the outer surface of the core. The rubber material is then cured to form a unitary intermediate layer that surrounds the core. Finally, a cover layer is molded about the intermediate layer through one of injection molding and compression molding.

Abstract: A method of manufacturing a multi-layer golf ball includes injection molding a core from an ionomeric thermoplastic material such that the core has an outer surface with a plurality of polygonal land potions aligned on a common sphere and a plurality of grooves extending radially inward from the sphere. The core is then positioned between a first hemispherical shell and a diametrically opposed second hemispherical shell, which are each formed from a rubber material. The first and second hemispherical shells are then compression molded such that rubber material conforms to the outer surface of the core. The rubber material is then cured to form a unitary intermediate layer that surrounds the core. Finally, a cover layer is molded about the intermediate layer through one of injection molding and compression molding.

Abstract: A method of manufacturing a multi-layer golf ball includes injection molding a core from an ionomeric thermoplastic material such that the core has an outer surface that includes a plurality of protrusions extending radially outward from a spherical land portion, with each protrusion having a maximum height relative to the spherical land portion of between 0.15 mm and 2.0 mm. The core is then positioned between a first hemispherical shell and a diametrically opposed second hemispherical shell, which are each formed from a rubber material. The first and second hemispherical shells are then compression molded such that rubber material conforms to the outer surface of the core. The rubber material is then cured to form a unitary intermediate layer that surrounds the core. Finally, a cover layer is molded about the intermediate layer through one of injection molding and compression molding.

Abstract: A multi-layer golf ball includes a core, and intermediate layer, and a cover. The core has an outer surface that includes a plurality of depressions extending from a spherical land portion. Each depression has a maximum depth relative to the spherical land portion of between 0.15 mm and 2.0 mm. The intermediate layer surrounds the core and has a radially inward surface that is flush with the outer surface of the core. The cover layer surrounds the intermediate layer and defines an outermost portion of ball.

Abstract: A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of a blend of highly neutralized polymers and a low flexural modulus ionomer, and may include a blend of different highly neutralized polymers. The layers of the ball have specified compression values and relationships. The cover is a single layer ionomer cover, and may be made from a blend of different grades of the ionomer. The ball as a whole has properties to maximize performance and aesthetic properties, such as backspin off the irons, feel, and sound.

Abstract: A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of a blend of highly neutralized polymers and a low flexural modulus ionomer, and may include a blend of different highly neutralized polymers. The inner core has a specified range of coefficients of restitution when measured at different velocities. The cover is a single layer ionomer cover, and may be made from a blend of different grades of the ionomer. The ball as a whole has properties to maximize performance and aesthetic properties, such as backspin off the irons, feel, and sound.

Abstract: A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of a blend of highly neutralized polymers and a low flexural modulus ionomer, and may include a blend of different highly neutralized polymers. The inner core and cover layer each has a specified hardness with a hardness relationship. The cover is a single layer ionomer cover, and may be made from a blend of different grades of the ionomer. The ball as a whole has properties to maximize performance and aesthetic properties, such as backspin off the irons, feel, and sound.

Abstract: A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of a blend of highly neutralized polymers and a low flexural modulus ionomer, and may include a blend of different highly neutralized polymers. The inner core has a specified specific gravity. The cover is a single layer ionomer cover, and may be made from a blend of different grades of the ionomer. The ball as a whole has properties to maximize performance and aesthetic properties, such as backspin off the irons, feel, and sound.

Abstract: A thermoplastic multi-layer golf ball has a core center including a first thermoplastic material and having a diameter of from about 7 mm to about 20 mm and a surface Shore D hardness H1 of from about 30 to about 48; a core layer outward from the core center, the core layer including a second thermoplastic material and having a diameter of from about 25 mm to about 40 mm, a thickness of from about 7 mm to about 10 mm, a surface Shore D hardness H2 that is greater than H1, and a 10-130 kg compression deformation of from about 2.6 mm to about 3.2 mm; an inner cover layer outward from the core layer, the inner cover layer including a third thermoplastic material and having a surface Shore D hardness H3 of from about 55 to about 70; and an outer cover layer on the surface of the golf ball including a fourth thermoplastic material and having a surface Shore D hardness H4 of from about 44 to about 56 and a 10-130 kg compression deformation of from about 2.3 mm to about 3.2 mm.

Abstract: A thermoplastic multi-layer golf ball has a thermoplastic core center, a thermoplastic core layer, and an inner cover layer and outer cover layer each including a thermoplastic polyurethane. The core center has a diameter of about 5-20 mm and a first flexural modulus of ?about 8,000 psi. The core layer has a diameter of about 28-40 mm, a thickness of about 4-10 mm, a second flexural modulus of ?about 15,000 psi and greater than the first flexural modulus, a 10-130 kg compression deformation of about 2.6-4.0 mm, and a surface hardness greater than the core center's surface hardness. The outer cover layer has a 10-130 kg compression deformation of about 2.3-3.2 mm and a surface hardness that is less than that of the inner cover layer. The difference between the core center's specific gravity and the core layer's specific gravity is ?about 0.1 g/cm3.

Abstract: A thermoplastic multi-layer golf ball has a core center having a diameter from about 5 mm to about 18 mm, including a first thermoplastic material having a first flexural modulus of up to about 15,000 psi, and having a specific gravity of at least about 1.5 g/cm3; a core layer outward from the core center that has a thickness of at least about 10 mm and includes a second thermoplastic material having a second flexural modulus of up to about 32,000 psi; and a cover including a third thermoplastic material having a third flexural modulus of up to about 5,000 psi. The second flexural modulus is greater than the first flexural modulus, the first flexural modulus is greater than the third flexural modulus, and the specific gravity of the core center is greater than the specific gravity of the core layer and greater than the specific gravity of the cover.

Abstract: A golf ball includes a core and a cover surrounding the core. The cover includes a first hemispherical half and a second hemispherical half that define a seam line therebetween and along an outer surface of the cover. The seam line is non-planar and includes a repeating trapezoidal wave having a first portion disposed at a first latitude, a second portion disposed at a second latitude, and a linear ramping transition between the first portion and the second portion. The seam line further includes a first curvilinear wave superposed within the first portion of the trapezoidal wave, and a second curvilinear wave superposed within the second portion of the trapezoidal wave.

Abstract: A golf ball includes a core and a cover surrounding the core. The cover includes a first hemispherical half and a second hemispherical half that define a seam line therebetween and along an outer surface of the cover. The seam line is non-planar and includes an integral number of cycles of a repeating wave that oscillates along the outer surface of the cover. Each cycle of the repeating wave has a 2? radian phase, and an intermediate section is interleaved within the repeating wave at phase angles that are integral multiples of ?. Each intermediate section has a straight surface profile along the outer spherical surface.

Abstract: A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of a blend of highly neutralized polymers and a low flexural modulus ionomer, and may include a blend of different highly neutralized polymers. The inner core has a specified range of coefficients of restitution when measured at different velocities. The cover is a single layer ionomer cover, and may be made from a blend of different grades of the ionomer. The ball as a whole has properties to maximize performance and aesthetic properties, such as backspin off the irons, feel, and sound.

Abstract: A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of a blend of highly neutralized polymers and a low flexural modulus ionomer, and may include a blend of different highly neutralized polymers. The inner core has a specified specific gravity. The cover is a single layer ionomer cover, and may be made from a blend of different grades of the ionomer. The ball as a whole has properties to maximize performance and aesthetic properties, such as backspin off the irons, feel, and sound.

Abstract: A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of a blend of highly neutralized polymers and a low flexural modulus ionomer, and may include a blend of different highly neutralized polymers. The inner core and cover layer each has a specified hardness with a hardness relationship. The cover is a single layer ionomer cover, and may be made from a blend of different grades of the ionomer. The ball as a whole has properties to maximize performance and aesthetic properties, such as backspin off the irons, feel, and sound.

Abstract: A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of a blend of highly neutralized polymers and a low flexural modulus ionomer, and may include a blend of different highly neutralized polymers. The inner core has a specified relationship of coefficients of restitution of the various layers of the ball. The cover is a single layer ionomer cover, and may be made from a blend of different grades of the ionomer. The ball as a whole has properties to maximize performance and aesthetic properties, such as backspin off the irons, feel, and sound.

Abstract: A high performance golf ball includes a resin inner core, a rubber outer core, and a cover. The resin inner core is made of highly neutralized polymer, and may include a blend of different highly neutralized polymers. The cover is a two layer cover, with a hard inner cover and a thermoplastic polyurethane outer cover. The ball as a whole has properties to maximize performance and aesthetic properties, such as feel and sound.

Abstract: A golf ball having certain relationships and values of its initial velocities at various club head speeds is provided. The golf ball has a typical initial velocity at a low club head speed, but an increased initial velocity at a high club head speed. Therefore, the golf ball may be advantageously used by both amateur golfers having lower swing speeds and professional golfers having high swing speeds. The golf ball may also achieve an initial velocity of at least about 173 mph at a club head speed of about 125 mph, therefore achieving an increased total shot distance.