Multi-layer golf ball

  • US 8,123,632 B2
  • Filed: 02/10/2011
  • Issued: 02/28/2012
  • Est. Priority Date: 11/28/2001
  • Status: Active Grant
First Claim
Patent Images

1. A golf ball consisting essentially of:

  • an inner core layer formed from a rubber composition and having a diameter of from 1.100 inches to 1.400 inches, a center hardness (Hcenter) of 40 Shore C or greater, and an outer surface hardness of 60 Shore C or greater;

    an outer core layer formed from a highly neutralized polymer composition and having an outer surface hardness (Houter core) of 75 Shore C or greater;

    an inner cover layer formed from a thermoplastic composition and having a material hardness (Hinner cover) less than the outer surface hardness of the outer core layer; and

    an outer cover layer formed from a composition selected from the group consisting of polyurethanes, polyureas, and copolymers and blends thereof.

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