GOLF BALL

SOLUTION: In a golf ball comprising at least one layer of a rubber core, and at least one layer of a cover covering the core, the at least one layer of the cover is formed of a resin composition containing components (A) and (B): polyurethane or polyurea (A); and thermoplastic polyester elastomer (B...

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Bibliographic Details
Main Author YAMABE MASAHIRO
Format Patent
LanguageEnglish
Japanese
Published 13.12.2021
Subjects
AMUSEMENTS
APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING,CLIMBING, OR FENCING
BALL GAMES
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
GAMES
HUMAN NECESSITIES
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
SPORTS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRAINING EQUIPMENT
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Summary:SOLUTION: In a golf ball comprising at least one layer of a rubber core, and at least one layer of a cover covering the core, the at least one layer of the cover is formed of a resin composition containing components (A) and (B): polyurethane or polyurea (A); and thermoplastic polyester elastomer (B), a blending ratio of the component (B) is 45 mass% or lower in a total amount of the resin composition, the resin composition has a shore D hardness of 42 or lower, and the resin composition has an impact resilience ratio of 60-72%.EFFECT: A golf ball is excellent in controllability in approach shot, can maintain hitting feeling and scratch resistance successfully, and is also excellent in moldability.SELECTED DRAWING: None 【解決手段】本発明は、少なくとも１層のゴム製コアと、該コアを被覆する少なくとも１層のカバーを具備するゴルフボールにおいて、上記カバーの少なくとも１層は、下記（Ａ）及び（Ｂ）成分（Ａ）ポリウレタン又はポリウレア（Ｂ）熱可塑性ポリエステルエラストマーを含有した樹脂組成物により形成され、上記（Ｂ）成分の配合割合が樹脂組成物の全量中４５質量％以下であるとともに、上記樹脂組成物は、そのショアＤ硬度が４２以下であり、その樹脂組成物の反発弾性率が６０〜７２％であることを特徴とするゴルフボールを提供する。【効果】本発明のゴルフボールは、アプローチショット時のコントロール性に優れると共に、打感及び耐擦過傷性を良好に維持でき、成型性も良好である。【選択図】なし
Bibliography:Application Number: JP20200096539