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US 2020/0047033 A1Published application
Multi-layer core golf ball
AssigneeAcushnet Company
InventorsMichael J. Sullivan, Derek A. Ladd
Life of this patent
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Abstract
Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises at least three layers, including at least one thermoset layer and at least one thermoplastic layer. The innermost core layer is relatively small, having a diameter of from 0.50 inches to 1.30 inches.
Claims6
A golf ball comprising:
- an inner core layer formed from a first thermoplastic composition and having a diameter of from 0.50 inches to 1.30 inches;
- an intermediate core layer formed from a first thermoset composition and having a thickness of from 0.01 inches to 0.06 inches and a surface hardness of 60 Shore D or less;
- an outer core layer formed from a second thermoplastic composition and having a thickness of from 0.05 inches to 0.25 inches and a surface hardness of from 55 Shore D to 70 Shore D;
- and
- a cover.
2 more elements
A golf ball comprising:
- an inner core layer formed from a first thermoplastic composition and having a diameter of from 0.50 inches to 1.30 inches;
- an intermediate core layer formed from a first thermoset composition and having a thickness of from 0.03 inches to 0.05 inches and a surface hardness of 60 Shore D or less;
- an outer core layer formed from a second thermoplastic composition and having a thickness of from 0.15 inches to 0.25 inches and a surface hardness of from 55 Shore D to 70 Shore D;
- an inner cover having a thickness of from 0.01 inches to 0.05 inches and formed from a composition having a hardness of from 62 Shore D to 72 Shore D;
- and
- an outer cover having a thickness of from 0.01 inches to 0.04 inches and formed from a composition having a hardness of less than 62 Shore D.
3 more elements
Dependencies are inferred from the claim text.