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:
Dec. 30, 2008
Filed:
Jan. 22, 2004
Kyoichi Shirota, Wakayama, JP;
Masaaki Shimoda, Wakayama, JP;
Yoshiaki Tanisho, Wakayama, JP;
Yoshikazu Morii, Wakayama, JP;
Masayoshi Ehara, Wakayama, JP;
Toshimasa Hamai, Wakayama, JP;
Daisuke Hamada, Wakayama, JP;
Kyoichi Shirota, Wakayama, JP;
Masaaki Shimoda, Wakayama, JP;
Yoshiaki Tanisho, Wakayama, JP;
Yoshikazu Morii, Wakayama, JP;
Masayoshi Ehara, Wakayama, JP;
Toshimasa Hamai, Wakayama, JP;
Daisuke Hamada, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
The invention provides an additive for hydraulic compositions, which exhibits an excellent viscosity reducing effect on a hydraulic composition, for example, a hydraulic composition containing a slurry of water and hydraulic powder, and is excellent in operativeness when used as an aqueous solution. The additive for hydraulic compositions contains a phosphoric monoester having a specific group such as an alkyl ether group or a salt thereof (monoester) and a phosphoric diester having a specific group such as an alkyl ether group or a salt thereof (diester) in a monoester weight content of monoester/(monoester+diester) is 0.4 to 0.95 (diester includes a pyrodiester).