High performance golf ball having a reduced-distance
View Patent ↗A high performance golf ball having a reduced overall distance while maintaining the appearance of a high performance trajectory. The golf ball includes a combination of low CoR core and cover materials coupled with a less aerodynamic dimple pattern that achieves a reduction in carry and overall distance of 15 and 25 yards versus a conventional golf ball, while still providing the look, sound, feel and apparent flight of a conventional golf ball. A high performance golf ball having a reduced distance is also achieved by controlling dimensionless coefficients of lift/weight and drag/weight at certain Reynolds numbers and spin ratios for various CoR.
1. A golf ball comprising:
at least one piece or layer, said ball having a lift to weight ratio greater than 1.5 at a Reynolds number of about 205,000 and a spin rate of about 2900 RPM, a CoR in a range of from 0.50 to 0.78, and a weight in a range of 1.40 to 1.62 ounces, wherein dimples cover at least 55% of an outer surface of the ball.
2. The ball of claim 1 , wherein the CoR is in the range of from 0.60 to 0.78, wherein said golf ball is comprised of a core and a cover and the core is comprised of polybutadiene, butyl rubber, a co-reaction agent and peroxide.
3. The ball of claim 2 , wherein the CoR is in the range of from 0.64 to 0.76 and the butyl rubber is halogenated.
4. The ball of claim 1 , wherein the weight is in the range of 1.45 to 1.60 ounces.
5. The ball of claim 1 , wherein the weight is in the range of 1.50 to 1.59 ounces.
6. The ball of claim 1 , wherein the ball has an outer diameter of between 1.675 inches to 1.695 inches.
7. The ball of claim 1 , wherein the ball has a drag to weight ratio that is greater than 2.4 at a Reynolds number of 205,000 and a spin rate of 2900 RPM.
8. The ball of claim 1 , wherein the ball has dimples covering at least 65% of the outer surface.
9. The golf ball of claim 1 , wherein the at least one piece or layer comprises an ionomer, non-ionomer, or polyurethane.
10. The golf ball of claim 1 , wherein the golf ball comprises a core, a casing or inner cover layer, and a cover.
11. The golf ball of claim 10 , wherein the inner cover or casing layer comprises an ionomer and the cover comprises a polyurethane.
12. The golf ball of claim 1 , wherein the at least one piece or layer comprises a core and a cover, the core comprising 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.
13. The golf ball of claim 12 , further comprising an inner cover layer and a cover layer.
14. The golf ball of claim 13 , wherein the inner cover layer comprises an ionomer.
15. The golf ball of claim 13 , wherein the cover layer comprises a urethane.
16. The golf ball of claim 12 , wherein the cover comprises an ionomer or a non-ionomer.