General Electric Company

Eugene David Herrmann

Grant Hay

Karkala Arun Kumar

Philip Matthew Peters

Nickey Ambrose

Joe Riello

James Anthony Cella

Irene Dris

John Bradford Reitz

Racid Kerboua

An embodiment of a method of making an optical film comprises heating the optical film comprising greater than or equal to 80 wt. % polycarbonate to a sufficient temperature to stretch the optical film, wherein the weight percent is based on a total weight of the optical film; and stretching the optical film. A resulting stretched optical film has a linear CTE measured in a direction parallel to a stretching direction of less than or equal to 50&#xd7;10cm/cm/&#xb0; C.

Methods of making and using optical film, light-diffusing film

A method of making an optical film comprises heating the optical film comprising greater than or equal to 80 wt. % polycarbonate to a sufficient temperature to stretch the optical film, wherein the weight percent is based on a total weight of the optical film; and stretching the optical film, wherein a resulting stretched optical film has a linear CTE measured in a direction parallel to a stretching direction of less than or equal to 50&#xd7;10cm/cm/&#xb0; C.

Optical film, light-diffusing film, and methods of making and using the same

In one aspect the present invention provides a storage medium for data, the storage medium comprising: a) a substrate, a physical portion of which comprises at least one polyimide, and b) at least one data layer on the substrate. The substrate comprising a polyimide exhibits low axial displacement and beneficial damping characteristics.

Data storage medium comprising polyimides

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Clifton Park, NY, United States of America

Eugene David Herrmann