Appeal No. 2000-0634
Application No. 08/274,942
BACKGROUND
Appellants’ invention relates a process and a device for producing molded polymeric
articles. Molded articles such as contact lens can be formed by the claimed invention.
Claim 1, which is representative of the claimed invention, appears below:
1. A process for the manufacture of mouldings that are crosslinked in a
mould at least to a degree sufficient to be released from the mold, in which
process a crosslinkable material that is in a state in which it is at least partially
uncrosslinked is introduced into the mould, the mould having a cavity
determining the shape of the moulding to be produced and being at least
partially permeable to an energy suitable to cause the crosslinking by
impingement of the energy upon the at least partially uncrosslinked material,
wherein the impingement of the energy causing the crosslinking upon the at
least partially uncrosslinked material is restricted to the cavity and wherein the
edge contour of the moulding is determined substantially by the spatial
restriction of the energy impingement, so that a moulding is produced free
from burrs or flashes.
CITED PRIOR ART
As evidence of unpatentability, the Examiner relies on the following references:
Clark et al. (Clark) 4,113,224 Sep. 12, 1978
Fogarty1 EP 0 484 015 May 06, 1992
(Published European Patent Application)
1 The Appellants and Examiner refer to this reference by the document number.
-2-
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