Low compression, resilient golf balls including an inorganic sulfide catalyst and methods for making the same
US6162135A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 1999 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | May 10, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/0082
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A low compression, resilient golf ball having a center and a cover, wherein at least a portion of the ball is formed from the conversion reaction of an amount of polybutadiene, a free radical source, and a cis-to-trans catalyst including at least one inorganic sulfide at a sufficient temperature to form a polybutadiene reaction product which includes an amount of trans-polybutadiene greater than the amount of trans-polybutadiene present before the conversion reaction and a cis-to-trans catalyst including at least one inorganic sulfide. The reaction product preferably has a first dynamic stiffness measured at -50.degree. C. that is less than about 130 percent of a second dynamic stiffness measured at 0.degree. C. A multi-layer golf ball having a center, at least one intermediate layer disposed concentrically about the center, and a cover, wherein at least a portion of at least one of the center, intermediate layer, or both, are made from the reaction product. Also included are methods of forming such golf balls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.