Patent ID: 8399549
Filing Date: 2013-03-19
Classification: A63B,C08K

Abstract:
1. A golf ball comprising a core and a cover and optionally at least one intermediate layer positioned between the core and the cover, wherein the core or an intermediate layer when present comprises a thermoplastic composition and the thermoplastic composition comprises or is prepared from: (a) at least one aliphatic, monofunctional organic acid having 4 to 36 carbon atoms, wherein the longest carbon chain of the acid is optionally substituted with from one to three substituents independently selected from the group consisting of C (b) at least one ethylene acid copolymer consisting essentially of copolymerized comonomers of ethylene, from about 12 to about 25 weight % of copolymerized comonomers of acrylic acid, and from about 0.5 to about 10 weight % of copolymerized comonomers of at least one C wherein the combined acid moieties of (a) and (b) are nominally neutralized to a level from about 120% to about 220%; and wherein the thermoplastic composition when formed into a sphere of 1.50 to 1.68 inches in diameter has a coefficient of restitution equal to or greater than 0.860, said coefficient of resilience being measured by firing the sphere at an initial velocity of 125 feet/second against a steel plate positioned 3 feet from the point where initial velocity is determined and dividing the velocity of rebound from the plate by the initial velocity and has a PGA compression greater than 110.