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. 11, 2012
Filed:
May. 22, 2008
Daisuke Hamada, Emmerich, DE;
Kenichiro Yabe, Wakayama, JP;
Keiichiro Sagawa, Wakayama, JP;
Masaaki Shimoda, Wakayama, JP;
Yoshiaki Tanisho, Wakayama, JP;
Yoshinao Kono, Wakayama, JP;
Toshimasa Hamai, Wakayama, JP;
Daisuke Hamada, Emmerich, DE;
Kenichiro Yabe, Wakayama, JP;
Keiichiro Sagawa, Wakayama, JP;
Masaaki Shimoda, Wakayama, JP;
Yoshiaki Tanisho, Wakayama, JP;
Yoshinao Kono, Wakayama, JP;
Toshimasa Hamai, Wakayama, JP;
Kao Corporation, Tokyo, JP;
Abstract
The present invention provides a dispersion-retaining agent for a hydraulic composition being excellent in both fluidity retainability and viscosity retainability and further a dispersion-retaining agent exhibiting fluidity retainability and viscosity retainability regardless of the type of hydraulic powder. The present invention relates to a dispersion-retaining agent for a hydraulic composition, containing a copolymer obtained by polymerizing specific monomer 1 represented by formula (1), with monomer 2 represented by formula (2), the corresponding alcohol compound of which satisfies specific physical properties, wherein, in the constituent monomers of the copolymer, the proportion of the monomer 1 is in a specific range, a specified monomers is used as at least a part of the monomer 2, and the proportion of monomers having an acid group or a neutralized group thereof is 5% by weight or less.