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:
Jul. 21, 2009
Filed:
Jul. 27, 2007
Jun Shindo, Chichibu, JP;
Eiji Takehana, Chichibu, JP;
Kae Yamazaki, Chichibu, JP;
Bridgestone Sports Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a golf ball having a core and a cover of one or more layer, wherein the core is made of a material obtained by molding under heat a rubber composition which includes (a) a base rubber containing polybutadiene having a stress relaxation time (T) of 3.5 or less, (b) an unsaturated carboxylic acid and/or a metal salt thereof, and (c) an organic peroxide, and wherein at least one layer of the cover is made of a material obtained by molding a mixture composed of (A) 100 parts by weight of a base resin and (B) 1 to 40 parts by weight of a branched saturated fatty acid or a derivative thereof. The golf ball has an excellent rebound overall, a soft, pleasant feel on impact, and excellent scuff resistance. Moreover, it has an appearance with a high degree of whiteness.