Golf ball

Details Golf ball Golf ball

2007-11-09

2009-11-10

Trimiew, Raeann (Department: 3711)

Games using tangible projectile

Golf

Ball

Reexamination Certificate

active

07614965

ABSTRACT:
The present invention relates to a golf ball having a ball component made of a material molded under heat from a rubber composition which includes:(A) from 1 to 50 parts by weight of a modified polybutadiene obtained by a modification reaction wherein a polybutadiene having a vinyl content of from 0 to 2%, a cis-1,4 bond content of at least 80% and an active end is modified at the active end with at least one type of alkoxysilane compound, and(B) at least 50 parts by weight of polybutadiene synthesized using a rare-earth catalyst and having a stress relaxation time (T80) of less than 4.0.The rubber composition additionally includes the following per 100 parts by weight of ingredients A and B combined:(C) from 10 to 50 parts by weight of an unsaturated carboxylic acid and/or a metal salt thereof,(D) from 5 to 80 parts by weight of an inorganic filler, and(E) from 0.1 to 10 parts by weight of an organic peroxide.By using such a rubber composition having an improved resilience and durability as a golf ball component, the performance of the golf ball can be improved.

REFERENCES:
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patent: 6921345 (2005-07-01), Higuchi et al.
patent: 2006/0019771 (2006-01-01), Kennedy et al.
patent: 2007-222196 (2007-09-01), None

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