Patent ID: 9248346
Filing Date: 2016-02-02
CPC Classification: A63B,C08K,C08L

Claim Text:
1. A golf ball comprising an innermost core layer formed from a heterogeneous composition, the heterogeneous composition comprising: a thermoplastic matrix formed from an acid copolymer composition wherein the acid copolymer is selected from one or more E/X- and E/X/Y-type acid copolymers of ethylene, an α,β-unsaturated carboxylic acid, and optionally a softening comonomer, and discrete particles of crosslinked rubber dispersed within the matrix, wherein the discrete particles are present in an amount of from 10 wt % to 40 wt %, based on the total weight of the heterogenous composition, and are formed from a rubber composition that is substantially free of reactive metal ingredients, and wherein less than 5% of all acid groups present in the matrix composition are neutralized.