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Multi-layer core golf ball

  • US 8,382,612 B2
  • Filed: 02/23/2012
  • Issued: 02/26/2013
  • Est. Priority Date: 01/10/2008
  • Status: Active Grant
First Claim
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1. A golf ball comprising:

  • a core having a diameter of about 1.4 inches to about 1.66 inches, comprising;

    a) a center formed from a first rubber composition and having a diameter of from about 0.5 inches to about 1.45 inches, a center hardness of from about 35 Shore C to about 75 Shore C and a surface hardness of from 50 Shore C to 95 Shore C;

    b) an intermediate core layer formed from a second rubber composition and having a surface hardness of about 80 Shore C or greater; and

    c) an outer core layer formed from a third rubber composition and having a surface hardness of about 80 Shore C or greater; and

    a cover layer formed from a composition having a material hardness of from about 30 Shore D to about 65 Shore D;

    wherein the surface hardness of the intermediate core layer is greater than the surface hardness of the center and the surface hardness of the outer core layer.

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