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Golf ball compositions comprising dynamically vulcanized blends of highly neutralized polymers and diene rubber

  • US 7,148,279 B2
  • Filed: 06/30/2004
  • Issued: 12/12/2006
  • Est. Priority Date: 04/13/2001
  • Status: Expired due to Term
First Claim
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1. A golf ball a core and a cover, wherein at least one of the core or the cover comprises a blend of:

  • a highly neutralized jonomer formed from a reaction between an jonomer having acid groups, a suitable cation source, and a salt of an organic acid, the cation source being present in an amount sufficient to neutralized the acid by 80% or greater; and

    a crosslinked or vulcanized diene rubber blend comprising;

    a first polybutadiene formed with a cobalt or nickel catalyst having a first Mooney viscosity between 40 to 150; and

    a second polybutadiene formed with a lanthanide series catalyst having a second Mooney viscosity between 30 to 100,wherein the first Mooney viscosity is greater than the second Mooney viscosity, and wherein the blend has a greater weight percentage of the first polybutadiene than that of the second polybutadiene.

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