Vacuum deposition of dielectric coatings on volatile material

Coating processes – Coating by vapor – gas – or smoke – Plural coatings applied by vapor – gas – or smoke

Reexamination Certificate

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Details

C427S109000, C427S162000, C427S164000, C427S402000, C204S192140, C204S192270, C359S245000, C359S315000

Reexamination Certificate

active

06933013

ABSTRACT:
In order to allow application of any coating under a vacuum over a volatile gelatinous layer, such as polymer dispersed liquid crystal (PDLC) on an optical glass substrate with a transparent electrode, such as indium tin oxide (ITO) on its surface, a layer of an intermediate stress absorbing polymeric material is first applied to cover the volatile gelatinous layer to prevent evaporation and escape of volatiles, thereafter the coating is applied under a very high vacuum using for example a technique called Physical Vapor Deposition (PVD) or sputtering.

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