Polyurethane member for use in electrophotographic apparatus
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United States of America Patent
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Issued Date -
Feb 8, 2007
app pub date -
Aug 3, 2006
filing date -
Aug 5, 2005
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Abandoned
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Abstract
The invention provides an electrophotography polyurethane member which exhibits small temperature dependency of characteristics, excellent mechanical characteristics, and high wear resistance. The cast-type electrophotography polyurethane member produced through hardening and molding a polyurethane composition containing at least polyol, polyisocyanate, and a diamino compound, wherein the diamino compound has a melting point of 80.degree. C. or lower and contains no chlorine atom but contains an aromatic ring in the molecular structure thereof and exhibits a reaction rate slower than that of 2,2',3,3'-tetrachloro-4,4'-diaminodiphenylmethane under given hardening and molding conditions.
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