Thermoset relief patterned sheet

Details Thermoset relief patterned sheet Thermoset relief patterned sheet

1981-08-24

1983-12-13

Dixon, Jr., William R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including variation in thickness

350167, 427162, 428167, 428337, B32B 300, G02B 2700, B05B 500

Patent

active

044205279

ABSTRACT:
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.

REFERENCES:
patent: 3458348 (1969-07-01), Sherman
patent: 3576689 (1971-04-01), Uraushihara
patent: 3684348 (1972-08-01), Rowland
patent: 3689346 (1972-09-01), Rowland
patent: 4092173 (1978-05-01), Novak et al.
patent: 4129628 (1978-12-01), Tamutus

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