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Electrophotographic member and electrophotographic apparatus

  • US 8,837,985 B2
  • Filed: 12/17/2013
  • Issued: 09/16/2014
  • Est. Priority Date: 07/31/2012
  • Status: Active Grant
First Claim
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1. An electrophotographic member, comprising:

  • a support;

    an elastic layer formed on the support; and

    a surface layer covering a surface of the elastic layer and containing a urethane resin, and,wherein the urethane resin comprises a reaction product ofa hydroxyl group-terminated prepolymer obtained by reacting the following polyester polyol (1) or the following polyester polyol (2) with a polyisocyanate, andan isocyanate-terminated prepolymer obtained by reacting the following polyester polyol (3) or the following polyester polyol (4) with a polyisocyanate;

    whereinpolyester polyol (1) is;

    a reaction product ofat least one carboxylic acid selected from the group consisting of adipic acid and suberic acid,an aliphatic triol having 3 or more and 6 or less carbon atoms, andan aliphatic diol having 4 or more and 6 or less carbon atoms;

    polyester polyol (2) is;

    a reaction product ofε

    -caprolactone andan aliphatic triol having 3 or more and 6 or less carbon atoms;

    polyester polyol (3) is;

    a reaction product ofat least one carboxylic acid selected from the group consisting of adipic acid and suberic acid,an aliphatic triol having 3 or more and 6 or less carbon atoms, andan aliphatic diol having 4 or more and 6 or less carbon atoms;

    polyester polyol (4) is;

    a reaction product ofε

    -caprolactone andan aliphatic triol having 3 or more and 6 or less carbon atoms.

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