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:
Sep. 14, 2004
Filed:
Nov. 04, 2002
Toru Nakamura, Abiko, JP;
Ticona GmbH, , DE;
Abstract
A toner for developing an electrostatically charged image, which is constituted with a microcapsule toner particle composed of a core and a shell, the core comprising a colorant and a binder resin containing an olefin copolymer having a cyclic structure, said olefin copolymer having a glass transition temperature ranging from −20° C. to less than 60° C. and a number average molecular weight ranging from 100 to 20,000, and the shell comprising a coating resin for the core, and/or a shell comprising a resin for coating the core containing an olefin copolymer having a cyclic structure, said olelin copolymer having a glass transition temperature ranging from 60° C. to 180° C. and a number average molecular weight ranging from 1,000 to 100,000. Since this toner is excellent in anti-spent toner effect, transfer properties, fixing ability, and offset-free properties, it is applicable to electrostatically charge image type copiers, printers, etc. of the low-temperature heating fixing type or pressure fixing type and heat roller fixing type which enables high-speed copying.