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.:
Date of Patent:
Apr. 12, 2016
Filed:
Aug. 23, 2012
Kazuyoshi Shiga, Kobe, JP;
Ryo Murakami, Kobe, JP;
Toshiyuki Tarao, Kobe, JP;
Takahiro Shigemitsu, Kobe, JP;
Kazuyoshi Shiga, Kobe, JP;
Ryo Murakami, Kobe, JP;
Toshiyuki Tarao, Kobe, JP;
Takahiro Shigemitsu, Kobe, JP;
DUNLOP SPORTS CO., LTD., Kobe-Shi, JP;
Abstract
An object of the present invention is to provide a golf ball polyurethane composition excellent in resilience. Another object of the present invention is to provide a golf ball excellent in a shot feeling and resilience. The present invention provides a golf ball polyurethane composition comprising, as a resin component, a polyurethane elastomer including a polyisocyanate with at least two alicyclic hydrocarbon structures having 3 or more carbon atoms as a constituting component, and having a storage modulus E' (Pa) and a loss modulus E″ (Pa) satisfying a following expression;log()≧−6.08when measured in a tensile mode using a dynamic viscoelasticity measuring apparatus.