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:
Aug. 20, 2002
Filed:
Jul. 12, 2001
Hirotaka Matsuoka, Minami-Ashigara, JP;
Jong Won Lee, Minami-Ashigara, JP;
Isamu Suzuki, Minami-Ashigara, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a toner comprising a binder resin, a colorant, and a releasing agent wherein the releasing agent has an endothermic starting temperature of 40° C. or more and a melting point of 120° C. or less which are measured using a differential scanning calorimeter, the binder resin contains a linear resin and a non-linear resin, the content of the releasing agent existing at the surface of toner particles is 0 to 30% by weight, and the shape factor MLS2 of the toner particles is from 100 to 130. Preferably a mixture of a linear Polyester and a non linear polyester is used as the binder resin. Preferably the weight average molecular weight of the linear polyester is 2.0×10 to 5.0×10 . The toner of the present invention has excellent developing characteristics and transfer characteristics, and superior offset resistance even in an oil-less fixing system. When recording a color image using the toner of the present invention, the resulting image has high quality and the OHP transmittancy is improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile