Golf ball
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United States of America Patent
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Oct 3, 2017
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app pub date -
Dec 22, 2015
filing date -
Dec 22, 2015
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Abstract
The invention provides a golf ball having a core and a cover of one or more layer encasing the core, wherein the cover has an outermost layer molded of a thermoplastic material selected from the group consisting of polyurethane, polyurea and mixtures thereof and, letting the absorbance peak heights near a wave number of 1512 cm−1 measured by the attenuated total reflectance method in Fourier transform infrared absorption spectroscopy (FT-IR/ATR spectroscopy) at an outside portion and an inside portion of the outermost cover layer be respectively P1 and P2, the value P1-P2 is at least 0.02.
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