Golf ball with soft coating and hard cover
AssigneeNIKE, Inc.
InventorsNicholas Yontz, Bradley C. Tutmark, Yasushi Ichikawa, Hideyuki Ishii, Thomas J. Kennedy, III
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Abstract
A golf ball has a cover with a Shore D hardness of at least about 59 and a coating on the cover that has at least one of (a) a pencil hardness of 2 B or less, (b) a Sward hardness of about 40 or less, or (c) a Hit (Young's Modulus)<20 N/mm2 and hmax>0.55 micrometer.
Claims11
A golf ball, comprising a cover with a Shore D hardness of at least about 59 and a coating on the cover, wherein the coating has at least one of (a) a pencil hardness of 2 B or less, (b) a Sward hardness of about 40 or less, or (c) a Hit (Young's Modulus)<20 N/mm2 and hmax>0.55 micrometer.
A method of making a golf ball, comprising coating a golf ball having a cover with a Shore D hardness of at least about 59 with a composition comprising (a) at least one polyisocyanate, (b) at least one polymeric polyol, (c) optionally, at least one extender with two or more isocyanate-reactive groups, and (d) optionally, a polysiloxane or fluoropolymer having at least one functional group reactive with at least one of components (a)-(c).
Dependencies are inferred from the claim text.