FIXING PRESSURE ROLLER AND FIXING DEVICE
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United States of America Patent
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Issued Date -
Jan 22, 2015
app pub date -
Jul 17, 2014
filing date -
Jul 17, 2013
priority date (Note) -
Abandoned
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Abstract
The present invention provides a fixing pressure roller exhibiting excellent compression set and having low hardness and low heat capacity, as well as a fixing device including the fixing pressure roller. A pressure roller employed in a fixing unit of a fixing device includes a core, and an elastic layer provided around the core, wherein the elastic layer is formed of a silicone rubber product produced by mixing a silicone rubber raw material with resin microballoons and water, and then curing the silicone rubber raw material; and the silicone rubber product includes therein voids provided by breakage of the resin microballoons through application of pressure, and voids provided through evaporation of the water.
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