Golf ball

Details Golf ball Golf ball

2006-05-09

2006-05-09

Gorden, Raeann (Department: 3711)

Games using tangible projectile

Golf

Ball

C473S383000

Reexamination Certificate

active

07041012

ABSTRACT:
A golf ball2has a core4, a cover6, and numerous dimples8. This cover6is composed of a resin composition which includes a thermoplastic styrene elastomer and an ionomer resin as principle components. A melt index of this resin composition at 190° C. is equal to or greater than 4.0 g/10 min. Ratio R1 of the diameter dmaxof the maximum dimple to the diameter D of the golf ball2is 10.5% or greater and 17.0% or less. A ratio R2 of the number of dimples8having a diameter d accounting for 10.5% or greater and 17.0% or less of the diameter D of the golf ball2, occupied in total number N of the dimples is equal to or greater than 20%. Shore D hardness of the cover6is 50 or greater and 63 or less.

REFERENCES:
patent: 5292132 (1994-03-01), Oka
patent: 5872185 (1999-02-01), Ichikawa et al.
patent: 6241627 (2001-06-01), Kasashima et al.
patent: 6624221 (2003-09-01), Takesue et al.
patent: 6855071 (2005-02-01), Endo et al.
patent: 2002/0155903 (2002-10-01), Kato et al.
patent: 2003/0050138 (2003-03-01), Kasashima

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