GOLF BALL
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United States of America Patent
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N/A
Issued Date -
Dec 5, 2013
app pub date -
Apr 19, 2013
filing date -
May 31, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A golf ball 2 includes a core 4, amid layer 6, and a cover 10. The core 4 includes a center 16, a first envelope layer 18, and a second envelope layer 20. The first envelope layer 18 is formed by a first rubber composition being crosslinked. The second envelope layer 20 is formed by a second rubber composition being crosslinked. The first rubber composition and/or the second rubber composition include: a base rubber; a co-crosslinking agent; a crosslinking initiator; and an acid and/or a salt. The co-crosslinking agent is (1) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms; and/or (2) a metal salt of an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms.
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