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. 07, 2017
Filed:
Mar. 18, 2015
Sanyo Chemical Industries, Ltd., Kyoto-shi, Kyoto, JP;
Yuya Iwagoe, Kyoto, JP;
Masaru Honda, Kyoto, JP;
SANYO CHEMICAL INDUSTRIES, LTD., Kyoto-shi, JP;
Abstract
Provided is a toner binder having excellent charging characteristics and blocking resistance, and an increased range of fixing temperatures when used as a toner. The present invention is a toner binder containing a polyester resin (P) comprising one or more types of polyester resins obtained by polycondensation of a carboxylic acid component (x) and an alcohol component (y), wherein at least one type (P1) of (P) contains 50 to 95 mol % of a aliphatic diol (y1) having a carbon number of 2 to 4 in the alcohol component (y), and (P) satisfies expressions (1) and (2).11.5≦SP value [(cal/cm)] of ()≦13.0  (1)5.2≦HLB value (by Oda method) of ()≦7.1  (2).