Method of Selecting Solvent for Polymer and Composition Containing Selected Solvent
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United States of America Patent
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Issued Date -
May 11, 2023
app pub date -
Oct 28, 2022
filing date -
Oct 30, 2021
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Abstract
The present disclosure relates to a method of selecting a polymer solution (also referred to as a “dope solution”) that is prepared by dissolving a polymer in a solvent in order to cast a film and may provide excellent optical and mechanical properties of the film, a polymer solution prepared using the selected solvent, and a film produced using the polymer solution. In addition, one embodiment is to provide a method of selecting a solvent for a polyamideimide-based or polyimide-based polymer for providing a polymer solution (dope solution) that may provide excellent optical properties of a film and may provide excellent physical properties of a film for an optical device or a display device by improving long-term storage stability of the polymer solution for producing a film.
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