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:
Nov. 05, 2019
Filed:
Dec. 27, 2018
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Hidetaka Inoue, Kobe, JP;
Kazuya Kamino, Kobe, JP;
Toshiyuki Tarao, Kobe, JP;
Mami Tanaka, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, Hyogo, JP;
Abstract
An object of the present invention is to provide a golf ball that can strike a good balance in approach performance under a rough condition and a wet condition while maintaining a flight distance on driver shots. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the golf ball body has a spherical core, an intermediate layer covering the spherical core, and a cover covering the intermediate layer, and the paint film has a multi-layered construction composed of two or more layers, wherein a 10% elastic modulus (Pi) of an innermost layer of the paint film is greater than a 10% elastic modulus (Po) of an outermost layer of the paint film and a 10% elastic modulus (C) of a material constituting the cover, and a thickness (Ti) of the innermost layer of the paint film is greater than a thickness (To) of the outermost layer of the paint film, a 10% elastic modulus (M) of a material constituting the intermediate layer is greater than the 10% elastic modulus (C) of the material constituting the cover, and a difference (Po−C) between the 10% elastic modulus (Po) of the outermost layer of the paint film and the 10% elastic modulus (C) of the material constituting the cover is −4.0 kgf/cmor more and 50 kgf/cmor less, and a Shore D hardness (Hc) of the material constituting the cover is 40 or less.