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Applying Reflective Conductive Coating to a Deformable Polymer

IP.com Disclosure Number: IPCOM000080326D
Original Publication Date: 1973-Dec-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Yetter, LR: AUTHOR

Abstract

This method is particularly useful for making reflective target assemblies of the type used in deformographic type display systems such as, for example, a deformographic storage display tube (DSDT).

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Applying Reflective Conductive Coating to a Deformable Polymer

This method is particularly useful for making reflective target assemblies of the type used in deformographic type display systems such as, for example, a deformographic storage display tube (DSDT).

A suitable process for forming a DSDT mica mounting structure is described in U. S. Patent 3,445,707.

Next, a suitable silicone polymer, preferably one such as the DOW CORNING Corp. product known as R-63-493, is provided in the uncured state which consists of a two part viscous liquid system including a catalyst and base. The catalyst is mixed with the base in the ratio of from 2.0 parts to 10.0 parts of the catalyst to 100 parts of the base. In addition, a diluent, preferably toluene, is added to the mixture in a ratio of 0.5 part diluent to 1.0 part of the catalyst/base mixture.

A portion of this solution, i.e., toluene/catalyst/base, is poured onto the surface of the mica and flowed over the entire surface so as to coat the entire area.

The coated assembly is then positioned vertically so that a portion of the coating drains for approximately one hour. The assembly is then placed horizontally, so as to attain a uniform distribution of the residual coating solution. The draining operation may be performed so that the polymer is drained in an atmosphere of the diluent, e.g., toluene. This maintains the polymer in a high- viscous state and allows control of its thickness, e.g., a range of 2.0 to 0.1 mils....