Method of manufacturing a golf ball

Details Method of manufacturing a golf ball Method of manufacturing a golf ball

2007-11-09

2011-10-18

Buttner, David (Department: 1765)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S432000, C525S193000, C525S274000

Reexamination Certificate

active

08039529

ABSTRACT:
The present invention relates to an industrially beneficial method of manufacturing golf balls which includes the steps of pre-preparing a masterbatch of an unsaturated carboxylic acid and/or a metal salt thereof by mixing an unsaturated carboxylic acid and/or a metal salt thereof with a rubber material, preparing a rubber composition that contains the rubber material by using the masterbatch, and employing a material obtained by molding the rubber composition under heat as a golf ball component. The masterbatch is composed of:(A) from 20 to 100 wt % of a modified polybutadiene obtained by a modification reaction wherein a polybutadiene having a vinyl content of from 0 to 2%, a cis-1,4 bond content of at least 80% and an active end is modified at the active end with at least one type of alkoxysilane compound, and(B) from 80 to 0 wt % of a diene rubber other than ingredient A,such that ingredients A and B are included in a combined amount of 100 wt %, and(C) an unsaturated carboxylic acid and/or a metal salt thereof.

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Machine Transalation of JP2007222196; no date.
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