Golf ball

Details Golf ball Golf ball

2005-01-18

2005-01-18

Gorden, Raeann (Department: 3711)

Games using tangible projectile

Golf

Ball

Reexamination Certificate

active

06843734

ABSTRACT:
Golf ball1has a core2and a cover3.The cover3is formed from a polymer composition. A coefficient of loss at −20° C., T(−20), and a complex elastic modulus at −20° C., E(−20) Kgf/cm2, of this polymer composition satisfy the following mathematical formula (I):in-line-formulae description="In-line Formulae" end="lead"?T(−20)≧4.2*10−5*E(−20)−0.24   (I).in-line-formulae description="In-line Formulae" end="tail"?The coefficient of loss T(−20) is equal to or greater than 0.05 and equal to or less than 0.50, and particularly equal to or greater than 0.05 and equal to or less than 0.40. The complex elastic modulus E(−20) is equal to or greater than 500, and particularly equal to or greater than 1000. The thickness of the cover is equal to or greater than 0.3 mm and equal to or less than 1.4 mm, and particularly equal to or greater than 0.3 mm and equal to or less than 1.0 mm.

REFERENCES:
patent: 4123061 (1978-10-01), Dusbiber
patent: 4431193 (1984-02-01), Nesbitt
patent: 6561925 (2003-05-01), Watanabe et al.
patent: 6699957 (2004-03-01), Gajewski et al.
patent: 10-305115 (1998-11-01), None

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