ELECTROPHOTOGRAPHIC MAGNETIC SEALING MEMBER AND ELECTROPHOTOGRAPHIC CARTRIDGE
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United States of America Patent
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Issued Date -
Jan 30, 2014
app pub date -
Jul 30, 2013
filing date -
Jul 30, 2012
priority date (Note) -
Abandoned
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Abstract
Provided is an electrophotographic magnetic sealing member for sealing magnetic toner contains a magnetic material and a binder resin. The magnetic material at least includes Nd and Fe, and further includes at least one element selected from the group consisting of Sr and Ba, at least one element selected from the group consisting of Pr and La, at least one element selected from the group consisting of B, Si, In, and P, and an Al element. The magnetic material has a residual magnetic flux density of 270 mT to 500 mT, an intrinsic coercive force of 400 kA/m to 850 kA/m, and a maximum energy product of 10.0 kJ/m3 to 40.0 kJ/m3. The electrophotographic magnetic sealing member contains 3.0 parts by mass to 15.0 parts by mass of the binder resin based on 100.0 parts by mass of the magnetic material.
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