Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 12, 2016
Patent Application Number
14669445
Date Filed
March 26, 2015
Patent Citations Received
Patent Primary Examiner
Patent abstract
A toner has toner particles containing a binder resin that comprises a block polymer as a main component, obtained by chemically bonding a crystalline polyester resin with an amorphous polyurethane resin, wherein the binder resin has a specific content of a crystalline polyester resin component, and has a concentration of ester bonds derived from the crystalline polyester resin component of not more than 5.2 mmol/g, and The maximum value EMAX of the flexural elasticity modulus E in a three-point bending test on the toner and the strain energy u for the toner satisfy specific values.
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