Two-piece solid golf ball

Games using tangible projectile – Golf – Ball

Reexamination Certificate

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Reexamination Certificate

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06887168

ABSTRACT:
Disclosed herein is a two-piece golf ball formed of a solid core and a cover, the solid core being formed from a rubber composition composed of a rubber base material of polybutadiene synthesized by using a catalyst of rare earth element, a small amount of organic peroxide, an unsaturated carboxylic acid and/or a metal salt thereof, an organic sulfur compound, and an inorganic filler, and the cover being formed mainly from a thermoplastic polyurethane material. The two-piece golf ball is by far superior to conventional ones in flying performance, cover durability, coating durability, and shot feeling.

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patent: 20030114246 (2003-06-01), Yokota
patent: 20030229183 (2003-12-01), Voorheis et al.
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patent: 2002-293996 (2002-10-01), None
Mark R. Mason et al.; “Hydrolysis of Tri-tert-butylaluminum: The First Structural Characterization of Alkylalumoxanes [(R2Al)2O]nand (RAIO)n”; American Chemical Society; 115; 1993; pp. 4971-4984.
C. Jeff Harlan et al.; “Three-Coordinate Aluminum Is Not A Prerequisite for Catalytic Activity in the Zirconocene-Alumoxane Polymerization of Ethylene”; American Chemical Society; 117; 1995; pp. 6465-6474.
Report of Research & Development; Fine Chemical; vol. 23; No. 9; Jun. 1, 1994; pp. 5-15.

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