Invention Grant
- Patent Title: Golf ball material and golf ball using the same
- Patent Title (中): 高尔夫球材料和高尔夫球使用相同
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Application No.: US12946528Application Date: 2010-11-15
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Publication No.: US08974319B2Publication Date: 2015-03-10
- Inventor: Kazuyoshi Shiga , Toshiyuki Tarao , Keiji Ohama
- Applicant: Kazuyoshi Shiga , Toshiyuki Tarao , Keiji Ohama
- Applicant Address: JP Kobe
- Assignee: SRI Sports Limited
- Current Assignee: SRI Sports Limited
- Current Assignee Address: JP Kobe
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2009-285367 20091216
- Main IPC: A63B37/12
- IPC: A63B37/12 ; A63B37/14 ; A63B37/00

Abstract:
An object of the present invention is to provide a golf ball which travels a great distance on the driver shots and stops quickly on the green on the approach shots. The present invention is directed to a golf ball material having a shear loss modulus G″ of 2.11×107 Pa or less, and a ratio (E″/G″) of a tensile loss modulus E″ to the shear loss modulus G″ of 1.78 or more, when measuring the shear loss modulus G″ in a shear mode and the tensile loss modulus E″ in a tensile mode at conditions of a temperature of 0° C., oscillation frequency of 10 Hz using a dynamic viscoelasticity measuring apparatus.
Public/Granted literature
- US20110143865A1 GOLF BALL MATERIAL AND GOLF BALL USING THE SAME Public/Granted day:2011-06-16
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