Plastic article or earthenware shaping or treating: apparatus – Means applying electrical or wave energy directly to work – Radiated energy
Patent
1992-08-06
1993-08-17
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Means applying electrical or wave energy directly to work
Radiated energy
118620, B29C 3508
Patent
active
052363260
ABSTRACT:
An imaging apparatus produces a film of photohardened composition by exposing a layer of photohardenable composition to actinic radiation through a surface of a barrier transparent to the radiation and in contact with the composition at an interface therewith. An inhibition layer is created within the photohardenable composition in contact with the interface that inhibits photohardening of the composition within the inhibition layer during exposure, thereby precluding adhesion of any photohardened composition to the barrier.
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Chiesa Richard L.
E. I. Du Pont de Nemours and Company
Magee Thomas H.
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