Appeal No. 95-1948
Application 08/090,854
presence of a photoinitiator which comprises reducing the amount
of irradiation necessary to achieve an effective cure by adding
to the polymer a photosensitizer that absorbs UV radiation in a
wavelength range not obscured by the polymer. This appealed
subject matter is adequately illustrated by independent claim 1
which reads as follows:
1. In a process of curing epoxidized polymers of
conjugated dienes which contain aromatic moieties by exposing the
polymers or a formulation containing such polymers to ultraviolet
radiation in the presence of a photoinitiator, the improvement
which comprises reducing the amount of irradiation necessary to
achieve an effective cure by adding from 0.05 to 0.5 parts per
hundred polymer of a photosensitizer which absorbs UV radiation
in a wavelength range which is not obscured by the polymer to the
polymer prior to or during irradiation.
The reference relied upon by the examiner as evidence of
obviousness is:
Erickson et al. (Erickson) 5,229,464 Jul. 20, 1993
All of the claims on appeal stand rejected under 35 USC
§ 103 as being unpatentable over Erickson.2
We refer to the Brief and to the Answer for a complete
exposition of the opposing viewpoints expressed by the appellants
2 The appealed claims will stand or fall together as explained on page 2
of the Answer, and the appellants have not contended otherwise on the record
before us.
2
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