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US 2016/0236041 A1Published application
Multi-layer golf ball
AssigneeAcushnet Company
InventorMichael J. Sullivan
Life of this patent
Estimating the term…
Abstract
Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.
Claims19
A golf ball comprising:
- an inner core layer formed from a first thermoplastic composition and having a diameter of 0.500 inches or greater, a center hardness (Hcenter) of 40 Shore C or greater, and an outer surface hardness (Hcenter surface) of 45 Shore C or greater;
- an intermediate core layer formed from a second thermoplastic composition and having an outer surface hardness (Hintermediate core surface) of 50 Shore C or greater;
- an outer core layer formed from a highly neutralized polymer composition and having an outer surface hardness (Houter core surface) of 55 Shore C or greater;
- an inner cover layer formed from a third thermoplastic composition and having an outer surface hardness (Hinner cover surface) of 60 Shore C or greater;
- an intermediate cover layer formed from a fourth thermoplastic composition and having an outer surface hardness (Hintermediate cover surface) of 65 Shore C or greater;
- and an outer cover layer formed from a composition selected from the group consisting of ionomers, polyurethanes, polyureas, and copolymers and blends of polyurethanes and polyureas, and having an outer surface hardness (Houter cover surface) of 70 Shore C or greater;
- wherein
- Hcenter surface<Hintermediate core surface<Houter core surface<Hinner cover surface<Hintermediate cover surface<Houter cover surface.
5 more elements
A golf ball comprising:
- an inner core layer formed from a first thermoplastic composition and having a diameter of 0.750 inches or greater, a center hardness (Hcenter) of 30 Shore C or greater, and an outer surface hardness (Hcenter surface) of 35 Shore C or greater;
- an intermediate core layer formed from a second thermoplastic composition and having a thickness of from 0.015 inches to 0.070 inches and an outer surface hardness (Hintermediate core surface) of 40 Shore C or greater;
- an outer core layer formed from a highly neutralized polymer composition and having an outer surface hardness (Houter core surface) of 45 Shore C or greater;
- an inner cover layer formed from a third thermoplastic composition and having an outer surface hardness (Hinner cover surface) of 50 Shore C or greater;
- an intermediate cover layer formed from a fourth thermoplastic composition and having an outer surface hardness (Hintermediate cover surface) of 60 Shore C or greater;
- and an outer cover layer formed from a composition selected from the group consisting of ionomers, polyurethanes, polyureas, and copolymers and blends of polyurethanes and polyureas, and having an outer surface hardness (Houter cover surface) of greater than 60 Shore C;
- wherein
- Hcenter surface<Hintermediate core surface<Houter core surface<Hinner cover surface<Hintermediate cover surface<Houter cover surface.
5 more elements
A golf ball comprising:
- an inner core layer formed from a first thermoplastic composition and having a diameter of 0.500 inches or greater, a center hardness (Hcenter) of 85 Shore C or greater, and an outer surface hardness (Hcenter surface) of 90 Shore C or greater;
- an intermediate core layer formed from a second thermoplastic composition and having an outer surface hardness (Hintermediate core surface) of 90 Shore C or less;
- an outer core layer formed from a highly neutralized polymer composition and having an outer surface hardness (Houter core surface) of 85 Shore C or less;
- an inner cover layer formed from a third thermoplastic composition and having an outer surface hardness (Hinner cover surface) of 80 Shore C or less;
- an intermediate cover layer formed from a fourth thermoplastic composition and having an outer surface hardness (Hintermediate cover surface) of 75 Shore C or less;
- and an outer cover layer formed from a composition selected from the group consisting of ionomers, polyurethanes, polyureas, and copolymers and blends of polyurethanes and polyureas, and having an outer surface hardness (Houter cover surface) of 70 Shore C or less;
- wherein
- Hcenter surface>Hintermediate core surface>Houter core surface>Hinner cover surface>Hintermediate cover surface>Houter cover surface.
5 more elements
A golf ball comprising:
- an inner core layer formed from a first thermoplastic composition and having a diameter of 0.750 inches or greater, a center hardness (Hcenter) of 85 Shore C or greater, and an outer surface hardness (Hcenter surface) of 90 Shore C or greater;
- an intermediate core layer formed from a second thermoplastic composition and having a thickness of from 0.015 inches to 0.070 inches and an outer surface hardness (Hintermediate core surface) of 87 Shore C or less;
- an outer core layer formed from a highly neutralized polymer composition and having an outer surface hardness (Houter core surface) of 85 Shore C or less;
- an inner cover layer formed from a third thermoplastic composition and having an outer surface hardness (Hinner cover surface) of 80 Shore C or less;
- an intermediate cover layer formed from a fourth thermoplastic composition and having a thickness of from 0.020 inches to 0.150 inches and an outer surface hardness (Hintermediate cover surface) of 75 Shore C or less;
- and an outer cover layer formed from a composition selected from the group consisting of ionomers, polyurethanes, polyureas, and copolymers and blends of polyurethanes and polyureas, and having an outer surface hardness (Houter cover surface) of 72 Shore C or less;
- wherein
- Hcenter surface>Hintermediate core surface>Houter core surface>Hinner cover surface>Hintermediate cover surface>Houter cover surface.
5 more elements
Dependencies are inferred from the claim text.