Invention Grant
- Patent Title: Golf ball
- Patent Title (中): 高尔夫球
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Application No.: US13898317Application Date: 2013-05-20
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Publication No.: US09011272B2Publication Date: 2015-04-21
- Inventor: Kazuhiko Isogawa , Keiji Ohama , Yoshiko Matsuyama , Seiichiro Endo
- Applicant: SRI Sports Limited
- Applicant Address: JP Kobe
- Assignee: Dunlop Sports Co., Ltd.
- Current Assignee: Dunlop Sports Co., Ltd.
- Current Assignee Address: JP Kobe
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2009-194918 20090826; JP2010-076562 20100330
- Main IPC: A63B37/06
- IPC: A63B37/06 ; A63B37/12 ; A63B37/00 ; C08G18/78 ; C08G59/54 ; C09D163/00 ; C09D175/06

Abstract:
Golf ball 2 has spherical core 4, cover 6 situated on the external side of the core 4, and paint layer 8 situated on the external side of the cover 6. The cover 6 has a Shore D hardness of no greater than 61. The paint layer 8 has a Martens hardness of no greater than 2.0 mgf/μm2. The base polymer of the paint layer 8 is a polyurethane obtained by a reaction of a polyol with a polyisocyanate. The polyisocyanate contains a buret-modified form of hexamethylene diisocyanate. The cover 6 has a thickness of 0.3 mm or greater and 1.0 mm or less. The paint layer 8 has a thickness of 5 μm or greater and 40 μm or less.
Public/Granted literature
- US20130252763A1 GOLF BALL Public/Granted day:2013-09-26
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