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. 16, 2000
Filed:
Jun. 03, 1997
Seiichi Ikeyama, Kuga-gun, JP;
Hideki Sakai, Kuga-gun, JP;
Mitsui Petrochemical Industries Ltd., Tokyo, JP;
Abstract
A thermal fixing developer material for electrophotography is provided. This developer material is adapted for use as a main component of an electrostatic toner, and the toner produced by using this developer material exhibits excellent release properties upon thermal fixing, and in particular, upon thermal fixing at low temperature, and therefore, is free from offset and contamination of carrier, photosensitive material, heat roller, and the like. Such a toner is also provided with high blocking resistance. The developer material of this invention comprises a wax of a propylene-based copolymer having a particular molecular weight, a particular melting point, and a particular compositional distribution.