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:
May. 21, 2013
Filed:
Aug. 27, 2008
Kazuya Sakata, Ichihara, JP;
Hiroshi Matsuoka, Ichihara, JP;
Hiroyuki Takei, Kamagaya, JP;
Kenji Uchiyama, Odawara, JP;
Ichirou Sasaki, Chiba, JP;
Kazuya Sakata, Ichihara, JP;
Hiroshi Matsuoka, Ichihara, JP;
Hiroyuki Takei, Kamagaya, JP;
Kenji Uchiyama, Odawara, JP;
Ichirou Sasaki, Chiba, JP;
Mitsui Chemicals, Inc., Minato-Ku, Tokyo, JP;
Abstract
Provided is a binder resin for color toners which comprises at least a carboxyl group-containing vinyl resin (C), a glycidyl group-containing vinyl resin (E) and a reaction product thereof, and contains both a tetrahydrofuran (THF) soluble portion and a THF insoluble gel portion, wherein the THF soluble portion has a main peak in the molecular weight region of not less than 10,000 and less than 15,000 in the chromatogram obtained by gel permeation chromatography (GPC), the content of the THF insoluble gel portion is less than 1 mass %, and the softening point is not more than 130 degrees centigrade.