Polymer electrets with improved charge stability
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United States of America Patent
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Sep 24, 1996
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N/A
app pub date -
Oct 10, 1995
filing date -
Mar 9, 1993
priority date (Note) -
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Abstract
The use of additives to produce polymer electrets with improved charge stability. In particular, the invention relates to the use of specific charge control agents used for toners that are blended with various polymers at suitable concentrations to enhance the charge lifetime of the electrets. The charge control agents include a triphenylmethane compound, a polymeric ammonium compound, and arylsulfide compound and azochromium complex.
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