The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 08, 2017

Filed:

Dec. 30, 2015
Applicant:

Bridgestone Sports Co., Ltd., Minato-ku, Tokyo, JP;

Inventors:

Kae Yamazaki, Saitamaken, JP;

Tsuyoshi Nakajima, Saitamaken, JP;

Yuichiro Ozawa, Saitamaken, JP;

Assignee:

Bridgestone Sports Co., Ltd., Minato-ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 37/06 (2006.01); A63B 37/00 (2006.01); C08L 21/00 (2006.01);
U.S. Cl.
CPC ...
A63B 37/0074 (2013.01); A63B 37/006 (2013.01); A63B 37/0051 (2013.01); A63B 37/0063 (2013.01); A63B 37/0064 (2013.01); A63B 37/0065 (2013.01); A63B 37/0066 (2013.01); A63B 37/0068 (2013.01); A63B 37/0075 (2013.01); A63B 37/0076 (2013.01); C08L 21/00 (2013.01);
Abstract

The invention provides a golf ball having a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material molded under heat from a rubber composition containing (A) a base rubber, (B) an organic peroxide, and (C) water and/or a metal monocarboxylate, and has a hysteresis loss of 50% or less when compressed at a load cell speed of 500 mm/min and under a constant load of 5,000 N.


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