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:
Oct. 06, 2009
Filed:
Apr. 30, 2004
Masayuki Ikegami, Atsugi, JP;
Koichi Sato, Atsugi, JP;
Ikuo Nakazawa, Zama, JP;
Sakae Suda, Sagamihara, JP;
Keiichiro Tsubaki, Atsugi, JP;
Ryuji Higashi, Atsugi, JP;
Keiko Yamagishi, Ebina, JP;
Masayuki Ikegami, Atsugi, JP;
Koichi Sato, Atsugi, JP;
Ikuo Nakazawa, Zama, JP;
Sakae Suda, Sagamihara, JP;
Keiichiro Tsubaki, Atsugi, JP;
Ryuji Higashi, Atsugi, JP;
Keiko Yamagishi, Ebina, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided a polymer compound including a repetitive unit structure represented by the following general formula (2): General formula (2): (where X' represents a polyalkenyl group; A represents a linear or branched alkylene group having a carbon atom number of 1 to 15, 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; D represents an aromatic ring structure which may be substituted; n represents an integer of 0 to 10; and R represents a hydrogen atom, an alkyl group which may be substituted, or an aromatic ring structure which may be substituted). The polymer compound is suitable for improving dispersibility of a coloring material or solid material in an ink composition or toner composition.