Golf ball
AssigneeBridgestone Sports Co., Ltd.
InventorsShinichi Kakiuchi, Yasushi Ichikawa, Takashi Maruko, Junji Umezawa, Kunitoshi Ishihara, Nobuhiko Matsumura
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Abstract
A thread wound golf ball comprises a liquid center and a wound core having a thread rubber layer formed by winding thread rubber around the center and a cover enclosing the wound core. The cover is based on a non-yellowing thermoplastic polyurethane elastomer, and the difference in specific gravity between the center and the cover is 0.2 or less.
Claims3
A thread wound golf ball comprising a liquid center and a wound core having a thread rubber layer formed by winding thread rubber around the center and a cover enclosing the wound core, wherein
- said cover is based on a non-yellowing thermoplastic polyurethane elastomer, and the difference in specific gravity between the center and the cover is 0.2 or less.
Dependencies are inferred from the claim text.