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:
Feb. 24, 2004
Filed:
Oct. 30, 2000
Kenji Iwasaki, Kokubu, JP;
Ichiro Kawase, Narita, JP;
Shingo Araki, Osaka, JP;
Haruo Murata, Sawara, JP;
Dainippon Ink and Chemicals, Inc., Tokyo, JP;
Abstract
The present invention employs ester compounds such as butyl acetate, oleyl acetate and the like that are typically employed in solvents and other applications as an agent for improving the fluidity of a pigment dispersion liquid. The pigment composition of the present invention includes a pigment and the aforementioned ester compound as essential components. A pigment dispersion liquid in which the present invention's pigment composition is dispersed in a solvent or the like demonstrates a great improvement in pigment dispersibility and dispersion liquid flow properties. When the present invention's pigment composition and pigment dispersion liquid are employed in a color filter, it is possible to obtain a uniform paint film having high contrast.