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:
Nov. 11, 2008
Filed:
Apr. 30, 2004
Koichi Sato, Atsugi, JP;
Ikuo Nakazawa, Zama, JP;
Sakae Suda, Sagamihara, JP;
Masayuki Ikegami, Atsugi, JP;
Keiichiro Tsubaki, Kawasaki, JP;
Ryuji Higashi, Atsugi, JP;
Keiko Yamagishi, Ebina, JP;
Koichi Sato, Atsugi, JP;
Ikuo Nakazawa, Zama, JP;
Sakae Suda, Sagamihara, JP;
Masayuki Ikegami, Atsugi, JP;
Keiichiro Tsubaki, Kawasaki, JP;
Ryuji Higashi, Atsugi, JP;
Keiko Yamagishi, Ebina, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A polymer compound is provided which is suitable to improve the dispersibility of coloring materials or solids in an ink or toner composition and which has a repeating unit represented by the general formula (2): (2) wherein X' represents a polyalkenyl group; each A represents independently a linear or branched alkylene group of 1 to 15 carbon atoms which may be substituted; m represents an integer of 0 to 30; B represents a single bond or an alkylene group which may be substituted; each D represents independently an aromatic ring in which at least one hydrogen atom attached to the ring is displaced by a fluorine atom; n represents an integer of 1 to 10; and R represents a hydrogen atom, an alkyl group which may be substituted, or an aromatic ring which may be substituted.