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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.

Patent No.:

US 11173349 B1

PDFFull Text
Date of Patent:
Nov. 16, 2021

Filed:

Nov. 28, 2018

Golf ball

Applicant:

Sumitomo Rubber Industries, Ltd., Kobe, JP;

Inventors:

Toshiyuki Tarao, Kobe, JP;

Mami Tanaka, Kobe, JP;

Hidetaka Inoue, Kobe, JP;

Assignee:

SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;

Attorney:

Birch, Stewart, Kolasch & Birch LLP

Primary Examiner:

Raeann Gorden

Int. Cl.
CPC ...
A63B 37/06 (2006.01); A63B 37/00 (2006.01); C09D 175/04 (2006.01); C08G 18/79 (2006.01); C08G 18/62 (2006.01); C08G 18/40 (2006.01); C08G 18/72 (2006.01); C08G 18/24 (2006.01); C08G 18/42 (2006.01); C08G 18/64 (2006.01); C08G 18/78 (2006.01);
U.S. Cl.
CPC ...
A63B 37/0022 (2013.01); A63B 37/008 (2013.01); A63B 37/0031 (2013.01); A63B 37/0033 (2013.01); A63B 37/0087 (2013.01); C08G 18/246 (2013.01); C08G 18/4063 (2013.01); C08G 18/4081 (2013.01); C08G 18/4277 (2013.01); C08G 18/6275 (2013.01); C08G 18/6484 (2013.01); C08G 18/725 (2013.01); C08G 18/7831 (2013.01); C08G 18/792 (2013.01); C09D 175/04 (2013.01); A63B 37/0075 (2013.01);
Abstract

An object of the present invention is to provide a golf ball travelling a great flight distance on driver shots, having enhanced controllability on approach shots under a wet condition, and being excellent in stain resistance and shot feeling. The present invention provides a golf ball comprising a golf ball body having a cover, and a paint film covering the golf ball body, wherein a 10% elastic modulus of the paint film is 75 kgf/cmor less, a storage modulus (E') at 150° C. of the paint film obtained by measuring dynamic viscoelasticity of the paint film is 1.0×10Pa or more, an indentation depth of the paint film measured with a nanoindenter in a state that the paint film is formed on the surface of the golf ball body is 1250 nm or more, and a material hardness of the cover is 50 or more in Shore D hardness.

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