Multi-layer golf ball having velocity gradient from faster center to slower cover
First Claim
1. A multi-layer golf ball comprising a center, a cover layer, and at least two intermediate layers between the center and the cover layer,wherein each subassembly of the golf ball has a combined coefficient of restitution value greater than the combined coefficient of restitution of said subassembly plus the next outer layer by a value of at least 0.003,wherein the subassembly comprises at least the center, andwherein the center has a coefficient of restitution value of at least 0.815.
6 Assignments
0 Petitions
Accused Products
Abstract
The present invention is directed to multi-layer golf balls having a center, a cover layer, and at least one intermediate layer between the core and the cover layer. The core, the at least one intermediate layer and the cover are constructed to have different initial velocities and COR such that the gradient of the initial velocities and COR progress from a faster center to a slower cover.
64 Citations
24 Claims
-
1. A multi-layer golf ball comprising a center, a cover layer, and at least two intermediate layers between the center and the cover layer,
wherein each subassembly of the golf ball has a combined coefficient of restitution value greater than the combined coefficient of restitution of said subassembly plus the next outer layer by a value of at least 0.003, wherein the subassembly comprises at least the center, and wherein the center has a coefficient of restitution value of at least 0.815.
-
18. A multi-layer golf ball comprising a center, a cover layer, and at least two intermediate layers between the center and the cover layer,
wherein each subassembly of the golf ball has a combined coefficient of restitution value greater than the combined coefficient of restitution of said subassembly plus the next outer layer by a value of at least 0.003; -
wherein the subassembly comprises at least the center; and wherein the change in coefficient of restitution from one subassembly to the next larger assembly per the thickness of the next larger subassembly is at least 0.00015 per thousandth of an inch. - View Dependent Claims (19, 20)
-
-
21. A multi-layer golf ball comprising a center, a cover layer, and at least two intermediate layers between the center and the cover layer,
wherein each subassembly of the golf ball has a combined coefficient of restitution value greater than the combined coefficient of restitution of said subassembly plus the next outer layer by a value of at least 0.003; -
wherein the subassembly comprises at least the center; wherein the center comprises a highly neutralized polymer formed from a reaction between acid groups on a polymer, a suitable source of cation, an organic acid or the corresponding salt;
the amount of the suitable source of cation is sufficient to neutralize the acid groups by about 100%;
the suitable source of cation is selected from the group consisting of magnesium, sodium, zinc, lithium, potassium and calcium; and
the organic acid or the corresponding salt is selected from the group consisting of oleic acid, salt of oleic acid, stearic acid, salt of stearic acid, behenic acid, salt of behenic acid and combination thereof.
-
-
22. A multi-layer golf ball comprising a center, a cover layer, and one intermediate layer between the center and the cover layer,
wherein each subassembly of the golf ball has a combined coefficient of restitution value that is greater than the combined coefficient of restitution of said subassembly plus the next outer layer by a value of at least 0.004; -
wherein the subassembly comprises at least the center; and wherein the change in coefficient of restitution from one subassembly to the next larger assembly per the thickness of the next larger subassembly is at least 0.00015 per thousandth of an inch. - View Dependent Claims (23, 24)
-
Specification