Polybutadiene Golf Balls
Polybutadiene for use in golf balls as rubber base material is required to have high hardness, high rebound and impact resistance as well as excellent processability. In general, however, a higher Mooney viscosity improves the rebound but worsens the processability. In contrast, a wider molecular weight distribution improves the processability but worsens the rebound. In a word, there is an antinomy between the improvements in processability and rebound. For the purpose of achieving the compatibility of processability and rebound, improvements in the property of polybutadiene have been tried and various proposes have been provided. (Okamoto and Ishiguchi, US Patent 7,820,763; 10/26/2010)
Recent US Patents
10/26/2010
7,820,763
Rubber composition and golf ball including the same as rubber base material
Okamoto and Ishiguchi of Ube Industries, Japan have developed rubber golf balls, tires and a variety of industrial products withhigh hardness, high rebound and impact resistance as well as excellent processability. The rubber component contains 1-70 weight parts of polybutadiene , 99-30 weight parts of a different diene rubber and a crosslinking coagent. (RDC 2/18/2011)