Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Reexamination Certificate
2007-07-24
2007-07-24
Gray, Jill (Department: 1774)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
C428S375000, C428S394000, C428S395000, C473S537000, C473S543000
Reexamination Certificate
active
11054798
ABSTRACT:
A racquet string includes a core component whose principal component is a synthetic fiber, and a surface resin component, wherein fullerenes or by-product carbon particles derived from manufacture of fullerenes are blended into the surface resin component, and wherein the blended percentage content is in a range of at least 0.01 wt % and at most 5.0 wt % of the entire string. The surface resin component may be formed as a sheath component by coating or by composite spinning. It is preferable that the amount of fullerenes or by-product carbon particles derived from the manufacture of fullerenes that is included in the surface resin component is in a range of at least 0.1 wt % and at most 25 wt %. Thus, the durability of the racquet string is improved without substantially changing its physical properties.
REFERENCES:
patent: 5776608 (1998-07-01), Asher et al.
patent: 6528572 (2003-03-01), Patel et al.
patent: 9-10367 (1997-01-01), None
Akagi Kazuhiro
Masuda Yutaka
Umano Kenichi
Gosen Co., Ltd.
Gray Jill
Hamre Schumann Mueller & Larson P.C.
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