Low compression, resilient golf balls including a cis-to-trans catalyst and method for making same
US6417278B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2000 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | May 22, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/545
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A low compression, resilient golf ball having a center including a material formed from the conversion reaction of sufficient amounts of polybutadiene, a free radical source, and a cis-to-trans catalyst to convert a portion of cis-isomer to trans-isomer in the polybutadiene, which reaction occurs at a sufficient temperature to form the material that contains trans-isomer and cis-isomer, wherein said material has an amount of trans-isomer greater than the amount of trans-isomer present before the conversion reaction, at least one intermediate layer disposed about the center and including a resilient polymer component and a reinforcing polymer component present in an amount sufficient to provide an uncrosslinked first mixture having a rigidity as determined by a flexural modulus greater than about 3.5 MPa, wherein the center and each intermediate layer together form the core, and a cover being disposed about the core, wherein the golf ball has a diameter of at least about 1.68 inches. In particular, the cis-to-trans catalyst includes an organosulfur compound, a Group VIA component, an inorganic sulfide, or a combination thereof, and the reinforcing polymer includes trans-polyisoprene…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.