Golf ball and method of making same
US4431193A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1981 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Aug 25, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S273/22
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The disclosure embraces a golf ball and method of making same wherein the golf ball has a solid (not thread-wound) resilient center or core, and a multilayer cover construction which involves a first layer or ply of molded hard, high flexural modulus resinous material on the core, and a second or cover layer of soft, low flexural modulus resinous material molded over the first layer to form a finished golf ball. The first layer is of a thickness in a range of 0.020 inches and 0.070 inches and may be of resinous material such as Type 1605 Surlyn marketed by E. I. du Pont de Nemours and Company, and the second or cover layer is of a thickness in a range of 0.020 inches and 0.100 inches and may be of resinous material such as Type 1855 Surlyn marketed by E. I. du Pont de Nemours and Company. Foamable materials for producing a cellular first layer or cellular cover layer are polymeric materials such as ionomer resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.