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:
Apr. 29, 2008
Filed:
Jun. 19, 2002
Hirokazu Ito, Toyohashi, JP;
Masaru Sugiura, Toyohashi, JP;
Kouji Shimizu, Toyohashi, JP;
Hitoshi Iwasaki, Toyohashi, JP;
Hirokazu Ito, Toyohashi, JP;
Masaru Sugiura, Toyohashi, JP;
Kouji Shimizu, Toyohashi, JP;
Hitoshi Iwasaki, Toyohashi, JP;
Mitsubishi Rayon Co., Ltd., Tokyo, JP;
Abstract
A polyester resin for toner which is obtained through polymerization in the presence of a release agent ingredient with a melting point of 60–100° C. or a release agent ingredient comprising an alcohol component, and which has a softening temperature of 100–160° C., an acid value of 0.1–30 mgKOH/g and a glass transition temperature of 40–70° C.; a process for producing a polyester resin for toner which comprises conducting polymerization in the presence of a release agent ingredient with a melting point of 60–100° C. or a release agent ingredient comprising an alcohol component; and toner comprising the polyester resin. Toners with excellent non-offset properties and glosses are obtained.