Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 3, 2018
Patent Application Number
15431821
Date Filed
February 14, 2017
Patent Citations Received
...
Patent Primary Examiner
Patent abstract
A toner having a toner particle that is produced through a step of melt-kneading a resin composition containing a binder resin, a colorant, a hydrocarbon wax, and a wax dispersing agent, cooling the obtained kneaded material, pulverizing the obtained cooled material, and heat treating the resulting resin particles, wherein the wax dispersing agent is a polymer provided by graft polymerizing a styrene-acrylic polymer onto a polypropylene, the styrene-acrylic polymer is a polymer having a monomer unit derived from a cycloalkyl (meth)acrylate, and specific relationships are satisfied where Mp(p) is the melting point (° C.) of the polypropylene and Mp(w) is the melting point (° C.) of the hydrocarbon wax.
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