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    • 47. 发明授权
    • Golf ball
    • 高尔夫球
    • US5994470A
    • 1999-11-30
    • US569992
    • 1995-12-08
    • Hiroaki TanakaYoshikazu YabukiYoshinori Sano
    • Hiroaki TanakaYoshikazu YabukiYoshinori Sano
    • A63B37/00A63B37/12C08L23/26
    • A63B37/0003A63B37/0022A63B37/0053A63B37/0075
    • Disclosed is a golf ball having excellent shot feel, control properties as well as satisfactory flight performance and cut resistance. The golf ball of the present invention has a core and a cover for covering the core, wherein the cover has a stiffness modulus of 100 to 250 MPa, and is prepared from a resin composition comprising, as a base resin, a mixture of the following resin (A) and resin (B) in a weight ratio of 60:40 to 90:10:resin (A): an ionomer resin (i) obtained by neutralizing with metal ion at least a part of carboxyl groups in a copolymer of ethylene and an .alpha., .beta.-unsaturated carboxylic acid, or a mixture of the ionomer resin (i) and an ionomer resin (ii) obtained by neutralizing with metal ion at least a part of carboxyl groups in a terpolymer of ethylene, an .alpha., .beta.-unsaturated carboxylic acid and an .alpha., .beta.-unsaturated carboxylate, andresin (B): a thermoplastic elastomer comprising a polyamide portion as a hard segment, having a Shore D hardness of 20 to 40 and a stiffness modulus of 10 to 50 MPa.
    • 公开了一种具有优异的喷射感觉,控制性能以及令人满意的飞行性能和耐切割性的高尔夫球。 本发明的高尔夫球具有用于覆盖芯的芯和盖,其中所述盖具有100至250MPa的刚度模量,并且由树脂组合物制备,所述树脂组合物包含作为基础树脂的以下混合物 树脂(A)和树脂(B)以60:40至90:10的重量比树脂(A):通过在金属离子中中和具有至少一部分羧基的共聚物中获得的离聚物树脂(i) 乙烯和α,β-不饱和羧酸,或离聚物树脂(i)和离子交联树脂(ii)的混合物,其通过用金属离子在乙烯,α,α-烯烃的三元共聚物中中和至少一部分羧基获得, β-不饱和羧酸和α,β-不饱和羧酸酯和树脂(B):包含硬聚酰胺部分的热塑性弹性体,肖氏D硬度为20〜40,硬度模量为10〜50MPa 。