Golf ball with soft core
View Patent ↗Disclosed herein is a golf ball with a solid core having a PGA compression of 55 or less and an outer cover layer having a Shore D hardness of at least 60, the ball having a PGA compression of 80 or less. In another embodiment of the invention, the ball has a mechanical impedance with a primary minimum value in a frequency range of 3100 Hz or less after the ball has been maintained at 21.1° C., 1 atm. and about 50% relative humidity for at least 15 hours. A further embodiment of the invention is a golf ball having a core, and a cover with a Shore D hardness of at least 58, the ball having a mechanical impedance with a primary minimum value in the frequency range of 2600 Hz after the ball has been maintained at 21.1° C., 1 atm. and about 50% relative humidity for at least 15 hours. The balls of the invention have good distance while providing a soft sound and feel.
1. A golf ball comprising:
a solid core, wherein the core has a PGA compression of 55 or less;
a cover comprising an inner cover layer and an outer cover layer, wherein the inner cover layer comprises an ionomer resin and the outer cover layer comprises a polyurethane and wherein outer cover layer has a Shore D hardness of about 58 or more;
the ball having a PGA compression of 80 or less and a coefficient of restitution of at least 0.780.
2. The ball according to claim 1 , wherein the ball has a PGA compression of 70 or less.
3. The ball according to claim 1 , wherein the ball has a diameter of no more than 1.70 inches.
4. The ball according to claim 1 , wherein the ball has a coefficient of restitution of at least 0.790.
5. The ball according to claim 1 , wherein the ball has an outer cover hardness of 60 or more.
6. The ball according to claim 1 , wherein the outer cover has a thickness of 0.01 to 0.20 inches.
7. The ball according to claim 1 , wherein the outer cover has a thickness of 0.025 to 0.15 inches.
8. A golf ball according to claim 1 , wherein the ball has a mechanical impedance with a primary minimum value in the frequency range of 3100 Hz or less after the ball has been maintained at 21.1° C., 1 atm. and about 50% relative humidity for at least 15 hours.
9. A golf ball comprising:
a solid polybutadiene core, wherein the core has a PGA compression of 55 or less;
an outer polyurethane cover layer having a Shore D hardness of about 58 or more;
the ball having a PGA compression of 80 or less and a coefficient of restitution of at least 0.780.
10. The ball according to claim 9 , wherein the ball has a coefficient of restitution of at least 0.790.
11. The ball according to claim 9 , wherein the ball has a mechanical impedance with a primary minimum value in the frequency range of 3100 Hz or less after the ball has been maintained at 21.1° C., 1 atm. and about 50% relative humidity for at least 15 hours.
12. The ball according to claim 9 , wherein the outer cover has a thickness of 0.01 to 0.20 inches.
13. The ball according to claim 9 , wherein the outer cover has a thickness of 0.025 to 0.15 inches.
14. A golf ball comprising:
a solid polybutadiene core, wherein the core has a PGA compression of 55 or less;
a cover comprising an inner cover layer and an outer cover layer, wherein the inner cover layer comprises an ionomer resin and the outer cover layer comprises a polyurethane and wherein outer cover layer has a Shore D hardness of about 58 or more;
the ball having a PGA compression of 80 or less and a coefficient of restitution of at least 0.780.
15. The ball according to claim 14 , wherein the ball has a PGA compression of 70 or less.
16. The ball according to claim 14 , wherein the ball has a diameter of no more than 1.70 inches.
17. The ball according to claim 14 , wherein the ball has a coefficient of restitution of at least 0.790.
18. A golf ball according to claim 14 , wherein the ball has a mechanical impedance with a primary minimum value in the frequency range of 3100 Hz or less after the ball has been maintained at 21.1° C., 1 atm. and about 50% relative humidity for at least 15 hours.