Conductive roller and manufacturing method therefor
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United States of America Patent
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Feb 3, 2015
Grant Date -
Dec 20, 2012
app pub date -
Mar 1, 2011
filing date -
Mar 1, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a conductive roller including a shaft 1, and an elastic layer 2 and a surface layer 3 formed on the periphery of the shaft in the order mentioned. The elastic layer 2 is composed of a polyurethane foam containing a polyurethane resin and a waterproofing agent. By containing the waterproofing agent in the formulation of the polyurethane foam constituting the elastic layer 2, the environment-dependence of the roller resistance is improved, the resistance variance accompanied by change in the environment can be controlled, and pores formed on the surface of the elastic layer 2 are made fine, whereby the surface properties of the roller improve. Also provided is a method of manufacturing the above-mentioned conductive roller.
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