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.
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
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