Appeal 2007-1970
Application 10/167,744
improve processing or performance characteristics, while still
maintaining the same hardness for each material layer
composition (Specification 7:7-13).
2) The Specification teaches that coefficient of friction may be
adjusted by the addition of fillers (Specification 8:34). A list of
exemplary fillers is provided on page 9 of the Specification.
3) According to the Specification, fillers such as “zinc oxide,
barium sulfate, flakes, fibers, and regrind, may be used to
modulate the flexural moduli of any given cover layer, while
having little to no effect on the hardness of the layer”
(Specification 10:21-23).
4) Sullivan discloses a golf ball comprising a core, an inner
cover, and an outer cover.
5) Sullivan discloses examples of golf balls in which the same
ionomers are used for the inner and outer cover layers. Sullivan
indicates that a mix of additives has been added to the outer
cover layers. The Shore D hardness is the same for both inner
and outer cover layers:
Example 2 (Table 10): The inner cover is 50 ppm Iotek 1002 and 50
ppm Iotek 1003. The inner cover has a thickness of 0.045. The
outer cover is 45.3 ppm Iotek 1002, 45.3 ppm Iotek 1003, and 9.4
ppm TG MB.2 The outer cover has a thickness of 0.055. The
Shore D hardness of both inner and outer covers is 71.
2 “TG MB = top grade master batch; a mix of additives including coloring
materials and fillers added to the cover composition to achieve the desired
5
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Last modified: September 9, 2013