Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2008-11-18
2011-12-06
Buttner, David (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S138000, C473S372000, C473S373000, C473S378000, C473S385000
Reexamination Certificate
active
08071684
ABSTRACT:
The present invention provides a golf ball material which is made of an ionomer composition that includes a phenolic resin component. The invention provides also a golf ball composed of a core and a cover layer, or a core, a cover layer and at least one intermediate layer therebetween, wherein the golf ball material is used in at least one layer of the core or cover. The invention additionally provides a method for preparing the golf ball material by using (i) or (ii) below:(i) melt blending an ionomer and a phenolic resin;(ii) melt blending an ionomer base resin, a metal cation source and a phenolic resin.The golf ball material of the invention has improved properties, including rebound resilience, durability, and a higher hardness. By using this golf ball material as the material for an essential part of a golf ball, the golf ball properties can be improved.
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Egashira Yoshinori
Nagasawa Hiroyuki
Shindo Jun
Takehana Eiji
Bridgestone Sports Co. Ltd.
Buttner David
Sughrue & Mion, PLLC
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