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:
Dec. 10, 2019
Filed:
Mar. 26, 2014
Zeon Corporation, Tokyo, JP;
Nof Corporation, Tokyo, JP;
Azusa Masuda, Tokyo, JP;
Ryuji Ohta, Tokyo, JP;
Munehiro Yamada, Amagasaki, JP;
Norifumi Itako, Amagasaki, JP;
Ryosuke Uemura, Amagasaki, JP;
ZEON CORPORATION, Tokyo, JP;
NOF CORPORATION, Tokyo, JP;
Abstract
There is provided a toner for developing electrostatic images, including an external additive and colored resin particles containing a binder resin, a colorant and softening agents. The colored resin particles contain a monoester compound A represented by formula (1) and a monoester compound B represented by formula (2) as softening agents. A content of the monoester compound A is in the range from 95 to 99% by mass, a content of the monoester compound B is in the range from 1 to 5% by mass, and a content of the softening agents is in the range from 10 to 30 parts by mass, with respect to 100 parts by mass of the binder resin. Formula (1) is R—COO—R. Formula (2) is R—COO—R.