Process for producing a double-layer film

Details Process for producing a double-layer film Process for producing a double-layer film

1994-06-29

1995-12-12

Dudash, Diana

Coating processes

Optical element produced

Polarizer, windshield, optical fiber, projection screen, or...

427165, 427333, 4274123, 4274125, 4274071, B05D 506, B05D 136, B32B 2740

Patent

active

054748020

ABSTRACT:
A process for producing a double-layer film on a flat substrate by reactive casting employing two kinds of reaction-curable resin raw material mixtures substantially free from a solvent, which comprises casting onto the substrate a first unreacted liquid raw material mixture for the first layer, then casting onto the first layer a second unreacted liquid raw material mixture for the second layer while the first raw material mixture still retains its fluidity, and thereafter curing by reaction the two layers simultaneously.

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patent: 5141783 (1992-08-01), Corsi et al.
patent: 5268136 (1993-12-01), Girard et al.
patent: 5277944 (1994-01-01), Holzer et al.

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