Golf ball
US4526375A · kind A · utility
122Cited by
11References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 20, 1984 |
| Grant date | Jul 2, 1985 |
| Priority date | — |
| Expiry date | Jan 20, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/908
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A golf ball having an improved low temperature impact resistance, which comprises a core and a cover made of a cover composition containing an ionic copolymer having at least two different metal ions in one molecule. The cover composition is prepared by kneading a sodium ion type ionic copolymer having free carboxyl groups and a metal oxide such as magnesium or zinc oxide at high temperatures, whereby the metal oxide is reacted with the ionic copolymer to incorporate the metal ion such as magnesium or zinc ion into the ionic copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.