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:
Jul. 26, 2011
Filed:
Feb. 20, 2008
Hiroyuki Shimanaka, Chuo-ku, JP;
Yoshikazu Murakami, Chuo-ku, JP;
Naoyuki Sakai, Chuo-ku, JP;
Shinya Tsuchida, Chuo-ku, JP;
Hiroyuki Shimanaka, Chuo-ku, JP;
Yoshikazu Murakami, Chuo-ku, JP;
Naoyuki Sakai, Chuo-ku, JP;
Shinya Tsuchida, Chuo-ku, JP;
Dainichiseika Color & Chemicals Mfg. Co., Ltd., Tokyo, JP;
Abstract
This invention relates a copolymer (D) containing (A) methacrylic polymer units each having, at an end thereof, at least one group represented by the below-described formula (1) and (B) units of an aromatic vinyl monomer, wherein a weight ratio (A:B) of the units (A) to the units (B) is A:B=5 to 95:95 to 5; and its use. The present invention can provide inter alia a copolymer useful as a pigment dispersant or the like capable of affording pigment dispersions useful for inkjet inks, colors for color filters, and other applications.