Back to results
US 9,175,183 B2Granted
Transparent conductive films, methods, and articles
AssigneeCarestream Health, Inc.
InventorsGary E. Labelle, Richard R. Ollmann
Life of this patent
Estimating the term…
Abstract
Disclosed are compositions and methods that provide flexible transparent conductive films that exhibit low levels of oligomer migration and haze development, without making use of costly substrates based on PEN film or PET films having low oligomer content. Such flexible transparent conductive films are useful in electronic and optical applications.
Claims9
A flexible transparent conductive film comprising:
- a transparent substrate consisting of polyethylene terephthalate (PET) with at least about 0.6 wt % extractable oligomer content, said substrate further comprising a front side surface and a back side surface;
- at least one barrier layer disposed on the front side surface, said at least one barrier layer comprising at least one thermoplastic resin, and the at least one thermoplastic resin comprising at least one first cellulose ester polymer;
- and
- at least one transparent conductive layer disposed on the at least one barrier layer, the transparent conductive layer comprising at least one second cellulose ester polymer,
- wherein the PET has not been solid-state polymerized,
- and further wherein the film comprises a Delta Haze measurement less than about 1%.
3 more elements
Dependencies are inferred from the claim text.