Appeal No. 1997-2070
Application 08/487,921
of the layer to the support and the coversheet.
As explained in the specification at page 2, such a prior
art radiation sensitive recording material with a support;
radiation sensitive layer; and coversheet has been utilized in
a process which involves removal of the coversheet, lamination
of the material to a substrate receptor; followed by imagewise
exposure of the material. The support can be removed either
before or after exposure takes place. A recurring problem
with such prior art systems is the inability to separate the
coversheet cleanly from the radiation sensitive layer before
lamination to the receptor, because the adhesion between the
coversheet and the radiation sensitive layer is too high. As
further indicated in the specification, a prior art solution
to this problem has involved the utilization of certain
aliphatic polyesters which are added to the radiation
sensitive layer to modify the adhesion balance. Appellants'
invention involves the further improvement to such prior art
systems through the use of the claimed polydiorganosiloxane
component in the tonable, radiation sensitive layer. Thus the
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