ELECTRET WEBS WITH CHARGE-ENHANCING ADDITIVES
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United States of America Patent
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Issued Date -
Nov 7, 2019
app pub date -
Jan 4, 2018
filing date -
Jan 5, 2017
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Abstract
Electret webs include a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additive is a substituted triazine phenolate salt or a combination of substituted triazine phenolate salts. The electret webs may be a non-woven fibrous web or a film. The electret webs are suitable for use as filter media.
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