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:
Feb. 23, 2021
Filed:
Jun. 26, 2019
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Ryota Sakamine, Kobe, JP;
Hiroshi Tadaoka, Kobe, JP;
Chiemi Mikura, Kobe, JP;
Kazuyoshi Shiga, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
Abstract
An object of the present invention is to provide a golf ball having excellent resilience. The present invention provides a golf ball comprising a spherical core and at least one cover covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, and (b) a co-crosslinking agent containing (b1) a carboxylic acid represented by a structural formula (1) and/or a metal salt thereof. [In the formula (1), Ato Aeach independently represents a nitrogen atom or a carbon atom. Xrepresents a single bond or a divalent organic group. Rrepresents a hydrogen atom or a monovalent organic group. It is noted that at least one of Ato Ais the carbon atom, and Xand Rbond to the carbon atom. n represents an integer of 0 to 3. When n is 2 or more, a plurality of Rmay be identical to or different from each other, and a plurality of Rmay bond to each other to form a ring structure.]