GOLF BALL
To provide a golf ball which, although the golf ball includes a silicone-based additive in an outer surface (a coating layer) of the golf ball, has a good spin performance on approach shots not only in a wet situation but also in a (normally) dry situation, and can exhibit both good water-repelling...
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Main Authors | , , |
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Format | Patent |
Language | English Japanese |
Published |
06.01.2023
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Subjects | |
Online Access | Get full text |
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Summary: | To provide a golf ball which, although the golf ball includes a silicone-based additive in an outer surface (a coating layer) of the golf ball, has a good spin performance on approach shots not only in a wet situation but also in a (normally) dry situation, and can exhibit both good water-repelling performance and good friction performance.SOLUTION: In a golf ball having a core, a cover, and a coating layer, the coating layer is formed of an urethane coating that includes an organic solvent having a boiling point of 80°C or less and a silicone-based additive, and the urethane coating includes a polyisocyanate as a curing agent. The polyisocyanate contains an adduct and an isocyanurate of hexamethylene diisocyanate (HMDI).SELECTED DRAWING: None
【課題】ゴルフボールの外表面(塗料層)にシリコーン系添加剤を含有しても、ウエット時のみならずドライ時(通常時)のアプローチスピン性能が良好となり、撥水性能と摩擦性能との両立が可能であるゴルフボールを提供することを目的とする。【解決手段】本発明は、コアとカバーと塗料層とを具備するゴルフボールであって、上記塗料層は、沸点80℃以下の有機溶剤とシリコーン系添加剤とを含むウレタン塗料により形成され、該ウレタン塗料は、硬化剤としてポリイソシアネートを含み、ポリイソシアネートが、ヘキサメチレンジイソシアネート(HMDI)のアダクト体とイソシアヌレート体とを含むことを特徴とするゴルフボールを提供する。【選択図】なし |
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Bibliography: | Application Number: JP20210102359 |