ELECTROMAGNETIC WAVE SHIELD SHEET MANUFACTURING METHOD AND ELECTROMAGNETIC WAVE SHIELD SHEET
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United States of America Patent
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Issued Date -
Apr 6, 2023
app pub date -
Feb 1, 2021
filing date -
Apr 1, 2020
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Abstract
A method of producing an electromagnetic wave shielding sheet by which an electromagnetic wave shielding sheet having a high shielding property against an electromagnetic wave and having low cost is produced. The method of producing an electromagnetic wave shielding sheet includes; preparing a dispersion containing carbon nanotubes, an inorganic pigment, carboxymethyl cellulose, and water; and drying the dispersion. In the dispersion, a ratio of a mass of the inorganic pigment to a mass of the carbon nanotubes is 1/4 or more and 1 or less
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