Golf ball
US4337946A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 6, 1980 |
| Grant date | Jul 6, 1982 |
| Priority date | — |
| Expiry date | Nov 6, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/0084
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A golf ball having an intermediate layer of thermoplastic resin between a thread-wound central core and an outer polyester elastomer layer. The thermoplastic resin has a substantial melt flow initiation temperature of 160.degree. C. or less, the substantial melt flow initiation temperature being the minimum temperature at which the melt index under a load of 4350 g. becomes 1 g/10 mins or more, and has a high adhesion property to the polyester elastomer cover. It is preferable that the thermoplastic resin have a resilience of 30% or more and that the intermediate layer of thermoplastic resin be within the range of 0.1 to 1.0 mm. This golf ball has excellent cutting resistance, "click" characteristics and impact resilience.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.