Patent ID: 6194505
Filing Date: 2001-02-27
Classification: A63B,C08C,C08F,C08L

Abstract:
A rubber composition for solid golf balls comprising the following components (a), (b), (c), (d), and (e):(a) 50 to 100 parts by weight of a polybutadiene rubber with a 1,4-cis bond content of 80% or more, a 1,2-vinyl bond content of 2.0% or less, and a ratio (Mw/Mn) of the weight average molecular weight (Mw) and the number average molecular weight (Mn) of 3.5 or less;wherein said polybutadiene rubber is a modified polybutadiene rubber produced by polymerizing butadiene in the presence of rare earth catalyst, thereby obtaining a polymer; andreacting said polymer with a terminal modification agent;(b) 0 to 50 parts by weight of a diene-type rubber other than the component (a), provided that the total amount of the component (a) and component (b) is 100 parts by weight;(c) 10 to 50 parts by weight of a crosslinking monomer;(d) 20 to 80 part by weight of inorganic filler; and(e) an effective amount of an organic peroxide.