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:
Dec. 30, 2003
Filed:
Feb. 04, 2002
Applicant:
Inventors:
Hiroto Sasaki, Chichibu, JP;
Jun Shindo, Chichibu, JP;
Assignee:
Bridgestone Sports Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 3/706 ; C08L 9/00 ;
U.S. Cl.
CPC ...
A63B 3/706 ; C08L 9/00 ;
Abstract
A rubber composition comprising 100 parts by weight of a base rubber containing 5-30% by weight of syndiotactic-1,2-polybutadiene and at least 40% by weight of cis-1,4-polybutadiene, 5-10 parts by weight of an unsaturated carboxylic acid metal salt, up to 2 parts by weight of an inorganic filler, and 10-30% by weight based on the weight of the metal salt of an initiator can be molded and vulcanized into a rubber product having a specific gravity of less than 1 and is suitable for the manufacture of golf balls for practice over water.