Patent · US Active

Process for forming an electroactive layer

US9209398B2 · kind B2 · utility

1Cited by

16References

18Claims

0Family size

Assignee

E I DU PONT DE NEMOURS AND COMPANY DUPONT DISPLAYS INC · US

Inventors

Reid John Chesterfield · Lompoc, US
Justin Butler · Tomball, US
Paul Anthony Sant · Lompoc, US

Key dates

Filing date	Mar 9, 2010
Grant date	Dec 8, 2015
Priority date	—
Expiry date	Dec 31, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH10K85/631
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

There is provided a process for vacuum drying. The process includes the steps of: depositing a liquid composition containing 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 including a condenser; 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; wherein the condenser is maintained at a temperature at which the solvent will condense as a liquid at the applied vacuum.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.