Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Structurally defined
428162, 428163, 428167, 428213, 428220, 428332, 428409, 4284237, 428910, 430946, 350167, 354101, G02B 2700
The present invention relates to a flexible composite sheet material having a thermoset patterned relief surface of high quality and definition which is particularly useful for producing high quality optical sheet components such as a lenticular screen sheet for producing three-dimensional pictures and photographs. The composite sheet comprises a flexible base film having front and rear surfaces and a layer of a cured thermosetting polymer overlying the front surface of the base film. The cured thermosetting polymer layer has a nonplanar outer surface defining a predetermined desired relief pattern of high quality and durability and of fine definition in the thermosetting polymer layer.
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Thomas Alexander S.
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