Golf ball

Details Golf ball Golf ball

2006-07-11

2006-07-11

Buttner, David J. (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S261000, C525S263000, C525S265000, C525S274000, C473S371000, C473S372000, C473S377000

Reexamination Certificate

active

07074859

ABSTRACT:
A golf ball is characterized by comprising a molded and vulcanized product of a rubber composition as a constituent component, the rubber composition comprising 100 pbw of a base rubber including 60–100 wt % of a polybutadiene containing at least 60 wt % of cis-1,4-bond, having a Mooney viscosity (ML1+4(100° C.)) of at least 40, and synthesized using a rare-earth catalyst, 10–60 pbw of an unsaturated carboxylic acid and/or a metal salt thereof, 0.1–5 pbw of an organosulfur compound, 5–80 pbw of an inorganic filler, and at least two organic peroxides including an organic peroxide having the shortest half-life at 155° C. designated (a) and another organic peroxide having the longest half-life at 155° C. designated (b), a ratio of half-lives (bt/at) being from 7 to 20 wherein atis the half-life of (a) and btis the half-life of (b), a total content of the organic peroxides being 0.1–0.8 pbw per 100 pbw of the base rubber.

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Akzo Nobel data sheet for Perkadox 14.
Akzo Nobel data sheet for Perkadox BC-FF.
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