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. 03, 2002
Filed:
Dec. 13, 2000
Applicant:
Inventors:
Hiroaki Takehara, Shiga, JP;
Takashi Shinjo, Shiga, JP;
Assignee:
Sekisui Chemical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 ; G03G 9/087 ;
U.S. Cl.
CPC ...
G03G 9/08 ; G03G 9/087 ;
Abstract
A toner resin composition characterized as containing a vinyl copolymer prepared principally from a styrene monomer and a (meth)acrylic ester monomer and showing peaks at least in the molecular weight range of 5,000-20,000 and in the molecular weight range of not below 500,000 when its molecular weight distribution is determined by gel permeation chromatography, 2-10% by weight of Fischer-Tropsch wax, and 0.5-5% by weight of styrenic block copolymer; and a toner incorporating the toner resin composition.