GOLF BALL AND RESIN COMPOSITION FOR COVER OR TOPCOAT THEREOF
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United States of America Patent
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Dec 22, 2016
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Dec 25, 2015
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Abstract
A resin composition for a cover or topcoat of golf balls includes: a resin for a cover or topcoat of a golf ball; an ultraviolet (UV) absorber for absorbing UV rays, of which an absorbance spectrum has an absorption peak at a wavelength in a range of 310 nm to 330 nm, has an absorbance in a wavelength range of 300 nm to 350 nm of at least 1.0 AU and has an absorbance at a wavelength of 370 nm of 0.1 to 0.5 AU; and a fluorescent whitening agent for absorbing UV rays and emitting visible rays, of which an absorbance spectrum has an absorption peak at a wavelength in a range of 350 nm to 370 nm, wherein a concentration of the UV absorber ranges from 0.25 to 1.5% by mass with respect to a total mass of the resin composition.
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