Patent ID: 9511263
Filing Date: 2016-12-06
CPC Classification: A63B

Claim Text:
1. A golf ball comprising: a core comprising a thermoplastic polyester elastomer formed from a polytetramethylene glycol with a molecular weight greater than or equal to 1400 g/mol; an inner mantle layer disposed over the outer core, the inner mantle layer having a thickness ranging from 0.030 inch to 0.070 inch, the inner mantle layer comprising an ionomer material, the inner mantle layer material having a plaque Shore D hardness ranging from 55 to 65; an outer mantle layer disposed over the inner mantle layer, the outer mantle layer having a thickness ranging from 0.025 inch to 0.040 inch, the outer mantle layer comprising an ionomer material, the outer mantle layer material having a plaque Shore D hardness ranging from 65 to 71; and a cover layer disposed over the outer mantle layer, the cover having a thickness ranging from 0.025 inch to 0.040 inch, the cover composed of a thermoplastic polyurethane material, the cover material having a plaque Shore D hardness ranging from 40 to 50, and the on cover Shore D hardness less than 56; wherein the golf ball has a diameter of at least 1.68 inches and a coefficient of restitution of at least 0.79.