Pressing roller and image heating apparatus having same
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United States of America Patent
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May 10, 2016
Grant Date -
Jun 11, 2015
app pub date -
Dec 8, 2014
filing date -
Dec 9, 2013
priority date (Note) -
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Abstract
A pressing roller includes a cylindrical core metal; a first rubber layer of non-porous material provided on the core metal; and a second rubber layer of porous material provided on the first rubber layer, wherein the second rubber layer includes a thermo-conductive filler dispersed therein such that a thermal conductivity of the second rubber layer in a longitudinal direction is higher than a thermal conductivity thereof in a thickness direction, and wherein the first rubber layer includes a thermo-conductive filler dispersed therein such that a thermal conductivity of the first rubber layer in an thickness direction is higher than a thermal conductivity of the second rubber layer in the thickness direction of the second rubber layer.
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