The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2018
Filed:
Sep. 18, 2015
Applicant:
Mitsubishi Chemical Corporation, Tokyo, JP;
Inventor:
Masaya Ota, Niigata, JP;
Assignee:
MITSUBISHI CHEMCICAL CORPORATION, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01); G03G 9/087 (2006.01); G03G 9/093 (2006.01); G03G 9/097 (2006.01);
U.S. Cl.
CPC ...
G03G 9/0821 (2013.01); G03G 9/08795 (2013.01); G03G 9/08797 (2013.01); G03G 9/09328 (2013.01); G03G 9/09378 (2013.01); G03G 9/09392 (2013.01); G03G 9/09733 (2013.01);
Abstract
The present invention provides an electrostatic image developing toner containing a binder resin, a colorant and a wax, wherein at least one specific peak or shoulder attributable to a melting point of the wax is present at 55 to 90° C., a dust emission (Dt) of said electrostatic image developing toner satisfies the specific formula, another specific peak or shoulder relating to an endothermic quantity is present at 65.6 to 70.8° C., and an average value of tan δ in a range of an angular velocity of 20 to 100 rad/sec in a dynamic viscoelasticity measurement at 140° C. is from 1.62 to 2.20.