Appeal No. 2006-0440
Application No. 10/291,933
iii) effecting relative movement between the rotating body
and the sheet die in a direction parallel to the axis
of rotation; and
iv) synchronizing the rate of reaction of the reaction
mixture and the relative movement with the
circumferential speed of the rotating body in such a
way that successive convolutions overlap in the form
of scales and connect together seamlessly.
(Column 1, line 50 column 2, line 17.) Grimm further teaches
that the circumferential speed at the largest diameter of the
coating to be applied is preferably adjusted to be less than the
speed at which the reaction mixture emerges from the sheet die.
(Column 3, lines 41-45.) Thus, one of ordinary skill in the art
would have understood that the substrate is rotated at a
selected speed.
As the examiner correctly points out (answer at 3), Grimm’s
method differs from a method encompassed by appealed claim 1
only in that step ii) of the prior art method does not involve
the use of a die that divides “an inlet stream of the polymeric
reaction mixture into plural outlet streams, the outlet streams
being applied to the substrate and the outlet streams being
spaced apart from each other such that the outlet streams flow
7
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