IP Library Granted Patent US 7,878,928
Granted Patent B2
US 7,878,928 · App. 12/352,017 · Granted Feb 1, 2011

High performance golf ball having a reduced-distance

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Quick Facts
Patent No.
US 7,878,928
App. No.
12/352,017
Granted
Feb 1, 2011
Kind
B2
Abstract

A golf ball including a core and a cover layer, wherein the golf ball has a weight of about 1.39 oz to about 1.62 oz, and at a Reynolds number of about 207,000 and a non-dimensional spin ratio of about 0.095, the golf ball has a lift-to-weight ratio of greater than about 1.7 and a drag-to-weight ratio of greater than about 2.4.

Claims (17)

1. A golf ball comprising:

a core; and

a cover layer;

wherein the golf ball has a weight of about 1.39 oz to about 1.62 oz, and at a Reynolds number of about 207,000 and a non-dimensional spin ratio of about 0.095, the golf ball has a lift-to-weight ratio of greater than about 1.7 and a drag-to-weight ratio of greater than about 2.4.

2. The golf ball of claim 1 , wherein the core comprises polybutadiene, butyl rubber, a co-reaction agent, or a peroxide.

3. The golf ball of claim 2 , wherein the butyl rubber is halogenated.

4. The golf ball of claim 1 , wherein the golf ball has a coefficient of restitution of about 0.550 to 0.785.

5. The golf ball of claim 4 , wherein the coefficient of restitution is about 0.600 to 0.780.

6. The golf ball of claim 1 , wherein the weight is about 1.45 oz to about 1.60 oz.

7. The golf ball of claim 6 , wherein the weight is about 1.45 oz to about 1.58 oz.

8. The golf ball of claim 1 , wherein the golf ball has an outer diameter of about 1.675 in about to 1.695 in.

9. The golf ball of claim 1 , wherein the dimple coverage is 55% to 75%.

10. The golf ball of claim 1 , wherein the cover layer comprises an ionomer, non-ionomer, or polyurethane.

11. The golf ball of claim 1 , wherein the golf ball comprises a casing or inner cover layer disposed between the core and the cover.

12. The golf ball of claim 11 , wherein the inner cover or casing layer comprises an ionomer and the cover comprises a polyurethane.

13. The golf ball of claim 1 , wherein the core comprises a polybutadiene, a co-reaction agent, a peroxide, and at least one of a butyl rubber, a halogenated butyl rubber, a butyl rubber copolymer, a sulfonated butyl rubber, a polyisobutylene, an ethylene propylene diene monomer rubber, a copolymer of isobutylene and methylstyrene, or a styrene butadiene rubber.

14. The golf ball of claim 1 , wherein the cover layer comprises a urethane.