Invention Grant
- Patent Title: Golf ball
- Patent Title (中): 高尔夫球
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Application No.: US12574408Application Date: 2009-10-06
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Publication No.: US08399563B2Publication Date: 2013-03-19
- Inventor: Kazuhiko Isogawa , Tsutomu Hirau , Satoko Okabe
- Applicant: Kazuhiko Isogawa , Tsutomu Hirau , Satoko Okabe
- 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: JP2008-262043 20081008; JP2008-267913 20081016
- Main IPC: A63B37/12
- IPC: A63B37/12 ; A63B37/00 ; C08L33/02 ; C08L77/00

Abstract:
An object of the invention is to provide a golf ball excellent in the durability at the normal and low temperatures, flight distance, and shot feeling on the shots. Another object of the present invention is to provide a golf ball excellent in a direction stability on the shots. The present invention provides a golf ball comprising: a core consisting of at least one layer; and a cover covering the core and having a thickness ranging from 0.3 mm to 1.0 mm, wherein the cover is formed from a cover composition that contains as a resin component, (A) a highly elastic polyamide resin (B) a metal-neutralized product of binary copolymer and/or ternary copolymer, and (C) a resin having a polar functional group in a specific amount, and wherein the cover composition has a slab hardness ranging from 65 to 75 in Shore D hardness.
Public/Granted literature
- US20100087275A1 GOLF BALL Public/Granted day:2010-04-08
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