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.

Date of Patent:
May. 31, 2005

Filed:

Nov. 25, 2003
Applicants:

Hiroto Sasaki, Chichibu, JP;

Hiroshi Higuchi, Chichibu, JP;

Nobuyuki Kataoka, Chichibu, JP;

Atsushi Nanba, Chichibu, JP;

Inventors:

Hiroto Sasaki, Chichibu, JP;

Hiroshi Higuchi, Chichibu, JP;

Nobuyuki Kataoka, Chichibu, JP;

Atsushi Nanba, Chichibu, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63B037/04 ; A63B037/06 ; A63B037/00 ;
U.S. Cl.
CPC ...
Abstract

Disclosed herein is a one-piece golf ball formed by vulcanization from a rubber composition composed of 100 parts by weight of rubber base material, 10 to 40 parts by weight of unsaturated carboxylic acid, 10 to 60 parts by weight of metal oxide, and 0.9 to 5 parts by weight of organic peroxide, said rubber base material containing 60 to 100% by weight based on the weight of a polybutadiene which is synthesized with a catalyst of rare earth element, contains no less than 60% of cis-1,4-linkage, and has a Mooney viscosity (ML(100° C.)) no less than 40. This golf ball has good shot feeling and high rebound resilience and is easy to produce by extrusion.


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