POLYMER FILMS AND ELECTRONIC DEVICES
In a first aspect, a polymer film includes a polyimide, wherein the polyimide includes two or more dianhydrides, including 15 to 35 mol % of a first monomer that is a crankshaft monomer and 15 to 35 mol % of a second monomer that is a flexible monomer, and two or more diamines, including 1 to 35 mol...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
21.09.2023
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Subjects | |
Online Access | Get full text |
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Summary: | In a first aspect, a polymer film includes a polyimide, wherein the polyimide includes two or more dianhydrides, including 15 to 35 mol % of a first monomer that is a crankshaft monomer and 15 to 35 mol % of a second monomer that is a flexible monomer, and two or more diamines, including 1 to 35 mol % of a third monomer that is a rotational inhibitor monomer and 15 to 49 mol % a fourth monomer that is a rigid rotational monomer, wherein the mol % of each monomer is based on the total of all four monomers. The polymer film has a dielectric dissipation loss factor, Df, of 0.005 or less, a water absorption of 2.0% or less and a water vapor transport rate of 50 (g×mil)/(m2×day) or less. |
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Bibliography: | Application Number: US202318322835 |