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:
Nov. 29, 2011
Filed:
Apr. 24, 2008
Hiroshi Mizuhata, Wakayama, JP;
Takashi Kubo, Wakayama, JP;
Takashi Mukai, Wakayama, JP;
Hidehito Ikebata, Wakayama, JP;
Katsutoshi Aoki, Wakayama, JP;
Hiroshi Mizuhata, Wakayama, JP;
Takashi Kubo, Wakayama, JP;
Takashi Mukai, Wakayama, JP;
Hidehito Ikebata, Wakayama, JP;
Katsutoshi Aoki, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
The present invention relates to a polyester having an excellent hydrolysis resistance even when used in a process for producing a toner for electrophotography which includes a step of forming a raw material into particles in an aqueous medium, and a toner for electrophotography which contains the polyester and is excellent in storage stability and fixing property. There are provided a polyester for a toner for electrophotography which is used in a process for producing a toner including a step of forming a raw material component into particles in an aqueous medium or a solution, and produced by polycondensing an alcohol component with a carboxylic acid component containing at least one compound selected from the group consisting of an alkyl succinic acid and an alkenyl succinic acid, as well as a toner for electrophotography which contains the polyester.