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:
May. 04, 2004
Filed:
Nov. 21, 2002
Sumitomo Rubber Industries, LTD, Hyogo-ken, JP;
Abstract
The present invention provides a solid golf ball having excellent rebound characteristics and excellent durability, and showing good workability when producing. The present invention relates to a solid golf ball composed of at least one layer of a rubber material as a component, wherein the rubber material is formed from the rubber composition comprising a base rubber, a co-crosslinking agent, an organic peroxide and an inorganic filler, and the rubber composition comprises 10 to 100 parts by weight of a polybutadiene containing a cis-1,4 bond of not less than 80%, having a Mooney viscosity of not less than 50 to less than 65 ML (100° C.), a ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn) of 2.5 to 3.5 and Mw of 50×10 to 70×10 , synthesized using lanthanide-containing catalyst, based on 100 parts by weight of the base rubber.