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Golf ball covers including polyurethane and optical brighteners

  • US 6,528,578 B2
  • Filed: 09/19/2001
  • Issued: 03/04/2003
  • Est. Priority Date: 12/17/1999
  • Status: Expired due to Term
First Claim
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1. A golf ball having a compression of at least about 55 comprising a core and a cover layer wherein the cover comprises an inner cover layer and an outer cover layer formed of a thermoset polyurethane composition comprising:

  • a saturated prepolymer comprising a saturated polyol and a saturated diisocyanate;

    a saturated curing agent;

    a UV absorber; and

    an optical brightener;

    and wherein the inner cover layer is harder than the outer cover layer.

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  • 5 Assignments
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