Process for forming an electroactive layer
AssigneeE.I. du Pont de Nemours and Company
InventorsReid John Chesterfield, Justin Butler, Paul Anthony Sant
Life of this patent
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Abstract
There is provided a process for forming a layer of electroactive material. The process includes: depositing a liquid composition containing an electroactive material and at least one solvent onto a workpiece to form a wet layer; placing the wet layer on the workpiece into a vacuum chamber containing solid absorptive material; and treating the wet layer at a controlled temperature in the range of −25° C. to 80° C. and under an applied vacuum in the range of 10−6 Torr to 1,000 Torr for a period of 1-100 minutes.
Claims20
A process for vacuum drying comprising the steps:
- depositing a liquid composition comprising a film-forming material and at least one solvent onto a workpiece to form a wet layer;
- placing the wet layer on the workpiece into a vacuum chamber containing absorptive solid material;
- and
- treating the wet layer at a controlled temperature in the range of −25° to 80° C. and under an applied vacuum in the range of 10−6 to 1,000 Torr for a period of 1-100 minutes.
A process for forming a layer of electroactive material, comprising the steps:
- providing a workpiece having at least one active area;
- depositing a liquid composition comprising the electroactive material and at least one solvent onto the workpiece in the active area, to form a wet layer;
- placing the wet layer on the workpiece into a vacuum chamber containing solid absorptive material;
- treating the wet layer on the workpiece at a controlled temperature in the range of −25° to 80° C. and under a vacuum in the range of 10−6 to 1,000 Torr, for a first period of 1-100 minutes, to form a partially dried layer;
- heating the partially dried layer to a temperature above 100° C. for a second period of 1-50 minutes to form a dried layer,
- wherein the dried layer has a substantially flat profile in the active area.
Dependencies are inferred from the claim text.