Multi-layer golf ball
AssigneeAcushnet Company
InventorsChristopher Cavallaro, Shenshen Wu
Life of this patent
Estimating the term…
Abstract
A golf ball including a solid core having an outer diameter of less than about 1.59 inches; an outer cover layer having a first material hardness and including a urethane elastomer formed from a castable reactive liquid material; and a casing disposed between the core and the cover layer, the casing including polyurea and having an outer diameter of between about 1.59 inches and about 1.64 inches and a second material hardness of between about 30 and about 70 Shore D; wherein a ratio of the second material hardness to the first material hardness is greater than 1.5.
Claims20
A golf ball comprising:
- a solid core having an outer diameter of less than about 1.59 inches;
- an outer cover layer having a first material hardness and comprising a elastomer formed from a castable reactive liquid material;
- and
- a casing disposed between the core and the cover layer, the casing comprising polyurea and having an outer diameter of between about 1.59 inches and about 1.64 inches and a second material hardness of between about 30 and about 70 Shore D;
- wherein a ratio of the second material hardness to the first material hardness is greater than 1.5.
A golf ball comprising:
- a core having an outer diameter of less than about 1.59 inches and comprising a polybutadiene having a vinyl content of less than about 7 percent;
- an outer cover layer having a first material hardness and formed from a polyurethane composition comprising the reaction product of at least one polyisocyanate, a polyol, and at least one curing agent;
- and
- a casing disposed between the core and the cover layer, the casing comprising polyurea and having an outer diameter of between about 1.59 inches and about 1.64 inches and a second material hardness of between about 30 and about 70 Shore D;
- wherein a ratio of the second material hardness to the first material hardness is greater than 1.5 and the golf ball has a moment of inertia of less than about 83 g·cm2.
Dependencies are inferred from the claim text.