Multiple-coat clear coat with optical brightener for golf ball

Details Multiple-coat clear coat with optical brightener for golf ball Multiple-coat clear coat with optical brightener for golf ball

A - Human Necessities

63

B

A63B 37/12 (2006.01) A63B 43/00 (2006.01) A63B 43/06 (2006.01) C09D 5/22 (2006.01) F21K 2/00 (2006.01)

Patent

CA 2066143

18 ABSTRACT OF THE DISCLOSURE A golf ball includes first, second and third clear coats on its cover, counting outward from the cover. The second clear coat contains an effective amount of an optical brightener. The first and third clear coats contain no more than a nominal amount of optical brightener. In a second embodiment of the invention, small quantities of optical brightener are included in the first and third clear coats. The amounts of optical brightener in the first and third clear coats are less than that which causes degradation of the physical properties of the first and third clear coat. In a further embodiment of the invention, an optical brightener is included in the cover of the golf ball. Brightness enhancement from the optical brightener in the cover augments the effect of the optical brightener in the clear coats. In a still further embodiment of the invention, a paint layer on the cover is coated with first, second and third clear coats. At least two of the paint layer, the first clear coat, the second clear coat and the third clear coat contain an effective amount of an optical brightener, the remainder of the paint layer, the first clear coat, the second clear coat and the third clear coat contain no more than a trace amount of optical brightener.

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