Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2007-09-21
2010-12-14
Buttner, David (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S321000, C524S322000, C524S394000, C524S400000, C473S378000, C473S385000
Reexamination Certificate
active
07851527
ABSTRACT:
The present invention provides a golf ball material made of an ionomer blend composition of (a) at least one E/X copolymer and/or E/X/Y terpolymer and (b) at least one polyfunctional higher aliphatic acid with two or more functionalities that has a molecular weight of at least about 200 but less than about 1,500, in which components (a) and (b) are neutralized with (c) an oxygen-containing inorganic metal compound. The copolymer and terpolymer of component (a) is one or a mixture of two or more selected from the group consisting of copolymers and terpolymers which is partially neutralized with metal ions, copolymers and terpolymers which are completely neutralized with metal ions, and unneutralized copolymers and terpolymers. The golf ball material has a good thermal stability, flow properties and moldability, making it suitable for injection molding. The material is ideal for forming high-performance golf balls of excellent durability, scuff resistance and optimal hardness, without any loss in the rebound resilience of moldings obtained therefrom.
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Egashira Yoshinori
Takehana Eiji
Yamazaki Kae
Bridgestone Sports Co. Ltd
Buttner David
Sughrue & Mion, PLLC
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