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Elastomeric compositions and multi-layer golf balls prepared with rigid uncrosslinked shells

  • US 6,172,161 B1
  • Filed: 04/19/1999
  • Issued: 01/09/2001
  • Est. Priority Date: 03/26/1998
  • Status: Expired due to Term
First Claim
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1. An elastomeric composition comprising a blend of:

  • a resilient polymer component of at least one polybutadiene having a high molecular weight average and a 1,4-cis content of greater than about 50 weight percent;

    a free-radical initiator; and

    about 5 to 15 weight percent of a reinforcing polymer component having a sufficiently low viscosity at a mixing temperature to facilitate mixing of the reinforcing polymer component with the resilient polymer component and having a crystalline melting point sufficiently low to facilitate the mixing while avoiding substantial crosslinking, wherein the uncrosslinked composition has a flexural modulus of greater than about 3.5 MPa.

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