Multi-piece golf ball
US9345933B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2012 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Mar 5, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/0876
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A multi-piece golf ball excellent in resilience and controllability includes a core composed of a center and an envelope layer covering the center and at least one cover covering the core, wherein the center is formed from a center composition containing (A) at least one resin component selected from the group consisting of (a-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (a-2) an ionomer resin consisting of a metal ion-neutralized product of the binary copolymer, (a-3) a ternary copolymer composed of the binary copolymer components and an β,β-unsaturated carboxylic acid ester, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of the ternary copolymer components and (B) a basic metal salt of a fatty acid, and wherein the envelope layer is formed from a rubber composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.