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US 2026/0034409 A1Published application
Golf ball core with tailored hardness gradient
AssigneeAcushnet Company
InventorsMichael Michalewich, Doug Goguen
Life of this patent
Estimating the term…
Abstract
Compositions including a hardness agent and golf ball cores made from such compositions having a tailored hardness gradient are disclosed. The type and concentration of the components in the composition, including the hardness agent, affects the hardness, hardness gradient, and compression of cores made from the composition and, thus, can be used to produce a golf ball having desirable performance characteristics.
Claims20
A golf ball, comprising:
- a core formed from a rubber formulation comprising a base rubber and a hardening agent including a first functional group and a second functional group, wherein the hardening agent has a hardening agent concentration HAC and a hardening agent isomer number HALN, wherein the core has a hardness gradient HGr equal to the difference between a geometric center hardness HC and a surface hardness HS, and wherein
- H
-
- A
- C
- *
- H
-
- A
- LN
- H
- Gr
- 0
- .
- 2
- ≥
- 0
- .25
- ;
- and
- a cover layer disposed about the core.
18 more elements
A golf ball, comprising:
- a core formed from a rubber formulation comprising a base rubber and a hardening agent including a first functional group and a second functional group, wherein the hardening agent has a hardening agent concentration HAC and a hardening agent isomer number HALN, wherein the core has a hardness gradient HGr equal to the difference between a geometric center hardness HC and a surface hardness HS, wherein HGr is between 2 Shore C and 42 Shore C, and wherein
- H
-
- A
- C
- *
- H
-
- A
- LN
- H
- Gr
- 0
- .
- 2
- ≥
- 0
- .25
- ;
- and
- a cover layer disposed about the core.
18 more elements
A golf ball, comprising:
- a core formed from a rubber formulation comprising a base rubber and a hardening agent including a first functional group and a second functional group, wherein the first functional group is meta or para to the second functional group, wherein the hardening agent has a hardening agent concentration HAC and a hardening agent isomer number HALN, wherein the core has a hardness gradient HGr equal to the difference between a geometric center hardness HC and a surface hardness HS, wherein HGr≥2, and wherein
- H
-
- A
- C
- *
- H
-
- A
- LN
- H
- Gr
- 0
- .
- 2
- ≥
- 0
- .25
- ;
- and
- a cover layer disposed about the core.
18 more elements
Dependencies are inferred from the claim text.