TONER
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United States of America Patent
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Issued Date -
Aug 31, 2023
app pub date -
Feb 23, 2023
filing date -
Feb 28, 2022
priority date (Note) -
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Abstract
A toner comprising a toner particle and an external additive, wherein the toner particle comprises a core comprising a resin A and a shell comprising a resin B on the surface of the core, the external additive comprises a hydrotalcite particle A, fluorine and aluminum are present in an inner part of the hydrotalcite particle A in line analysis in STEM-EDS mapping analysis of the toner, and a concentration ratio of the number of fluorine atoms relative to aluminum atoms (F/Al) in the hydrotalcite particle A, as determined by primary component mapping of the hydrotalcite particle A in the STEM-EDS mapping analysis of the toner, is 0.01 to 0.60.
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