Polyurethane material for two and three piece golf balls
US6793864B1 · kind B1 · utility
21Cited by
16References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1998 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Apr 16, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A novel composition useful for golf ball covers that comprises a blend of a diisocyanate/polyol polyurethane prepolymer with a curing agent comprising a blend of slow-reacting diamine with a fast-reacting diamine such as dimethylthio 2,4-toluenediamine and diethyl 2,4-toluenediamine, respectively. A golf ball cover made with this composition exhibits the characteristic feel and playability of a balata cover with superior durability characteristics (cut and shear resistance) which exceed those of a balata or ionomer cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.