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:
Mar. 27, 2012
Filed:
Jan. 16, 2007
Applicants:
Masaaki Shimoda, Wakayama, JP;
Daisuke Hamada, Emmerich, DE;
Toshimasa Hamai, Wakayama, JP;
Inventors:
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 30/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a dispersant for a hydraulic composition, containing a polymer obtained by copolymerizing a specific monomer 1 such as an ethylenically unsaturated carboxylic acid derivative having a polyoxyalkylene group, a monoester phosphate-based monomer 2, a diester phosphate-based monomer 3, and an unsaturated carboxylic acid-based monomer 4, at pH 7 or less.