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, 2010
Filed:
Aug. 26, 2005
Ryuma Mizushima, Wakayama, JP;
Isao Tsuru, Wakayama, JP;
Hirotaka Takeno, Wakayama, JP;
KAO Corporation, Tokyo, JP;
Abstract
A water dispersion containing colorant-containing water-insoluble vinyl polymer particles, and a water-based ink containing the water dispersion. The water-insoluble vinyl polymer contains constitutional units of formulae (1) and (2): where Ris a hydrogen atom or a methyl group; and Ris a substituted or unsubstituted arylalkyl group or a substituted or unsubstituted aryl group; and where Ris a hydrogen atom or a methyl group; RO is an oxypropylene group; RO is an oxyalkylene group having 2 or 4 carbon atoms; Ris a hydrogen atom, an alkyl group or an unsubstituted or alkyl-substituted phenyl group; x is a number from 1 to 30; and y is a number from 0 to 30, and a weight ratio of the constitutional units of formula (1) to formula (2) in the polymer ranges from 1/2 to 10/1.