发明名称 |
Game ball with synthetic leather cover |
摘要 |
A game ball having a high end synthetic leather cover formed from a non-woven fiber mat impregnated with polyurethane. In one embodiment, the game ball is a football and the fibers in the backing of the cover material have a denier of about 0.1 or less. In another embodiment, the game ball cover has a dual layer coating to impart to the cover good pebble retention. The first layer has a Shore A hardness of at least about 65, and the second layer surrounding the first layer has a Shore A hardness lower than the hardness of the first layer. The game ball, which can be formed to meet association specifications, has properties of softness and durability comparable to those of a genuine full grain leather game ball.
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申请公布号 |
USRE37468(E1) |
申请公布日期 |
2001.12.11 |
申请号 |
US19990304460 |
申请日期 |
1999.05.03 |
申请人 |
SPALDING SPORTS WORLDWIDE, INC. |
发明人 |
KENNEDY THOMAS;BRANTLEY DERRICK K. |
分类号 |
A63B41/08;(IPC1-7):A63B41/08 |
主分类号 |
A63B41/08 |
代理机构 |
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主权项 |
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地址 |
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