Acushnet Company

Nelson Araujo

Dennis Britton

Edward Costa

Brian Comeau

Compositions for use in golf balls and golf balls including such compositions that have increased shear durability. Such compositions include a blend of at least two thermoplastic elastomers.

Golf balls with increased shear durability

A golf ball and a method of forming a golf ball is disclosed herein. The golf ball includes an alignment aid or feature that is integrally formed with a core body of the golf ball. A cover is provided that allows the alignment aid to be visible from an exterior of the golf ball. The alignment aid can be formed as central spherical segment that fuses two spherical cap portions with each other to form the core body. Different material selections can be made for the spherical cap portions and the central spherical segment that can further provide variation in performance characteristics of the golf ball.

Golf ball alignment aid and method of forming same

A golf ball has a core and a cover that surrounds the core. The core is a multi-layer component of the golf ball, having at least two core layers including an inner core and at least one outer core. The inner core is formed from a first composition and has a generally spherical shape and a spherical surface. The inner core defines one or more through holes that each extend from a first opening at the spherical surface to a second opening at the spherical surface. The outer core is formed from a second composition, different from the first composition. The outer core has a first portion that surrounds the inner core and a second portion that extends from the first opening to the second opening and thereby completely fills each of the through holes.

Golf ball having an interlocking multi-layered core

A golf ball comprising: a core having an outer surface and a geometric center and being formed from a substantially homogenous rubber composition comprising a carbon-carbon initiator, wherein the outer surface has a hardness that differs from a hardness at the geometric center by up to about 10 Shore C; optionally an intermediate layer disposed about the core; and a cover layer disposed about the core (or intermediate layer where present).

Golf ball comprising a core having a shallow hardness gradient

A golf ball comprising: an inner core formed from a first substantially homogenous rubber composition comprising a carbon-carbon initiator, the inner core having a geometric center and a first outer surface having a hardness less than that of the geometric center by up to about 20 Shore C; an outer core layer disposed about the inner core formed from a second substantially homogenous rubber composition and comprising a second outer surface having a hardness that is up to about 43 Shore C points greater than the hardness of the geometric center; an inner cover layer disposed about the core comprising an ionomeric material and having a material hardness of about 55 Shore D or greater; an outer cover layer disposed about the inner cover layer comprising a polyurea or polyurethane and having a material hardness of 20 Shore D to 70 Shore D.

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New Bedford, MA, United States of America

Nelson Araujo