Golf ball

Details Golf ball Golf ball

2011-03-29

2011-03-29

Trimiew, Raeann (Department: 3711)

Games using tangible projectile

Golf

Ball

Reexamination Certificate

active

07914397

ABSTRACT:
Golf ball2has a spherical core4, a mid layer6covering this core4, a reinforcing layer8covering this mid layer6, and a cover10covering this reinforcing layer8. Base polymer of this mid layer6includes an ionomer resin as a principal component. Base polymer of this cover10includes a thermoplastic polyurethane elastomer as a principal component. The cover10has a thickness Tc of equal to or less than 0.6 mm. The cover10has a hardness Hc as measured with a Shore D type hardness scale of equal to or less than 54. The cover10has a volume V of equal to or less than 3.0 cm3. A product obtained by multiplying the thickness Tc, the hardness Hc and the volume V is equal to or less than 90. The reinforcing layer8includes a thermosetting resin as a base polymer. The reinforcing layer has a thickness of 3 μm or greater and 50 μm or less.

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patent: 2004-187829 (2004-07-01), None
patent: WO-2005/011099 (2004-02-01), None

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