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Title:
DISPERSANT FOR HYDRAULIC COMPOSITION
Document Type and Number:
Japanese Patent JP2004277280
Kind Code:
A
Abstract:

To provide a dispersant which can give better workability and filling property than usual through a year to, in particular, ultrahigh strength concrete by keeping fluidity in a short time after kneading.

The dispersant for a hydraulic composition uses two kinds of copolymers containing a polyalkylene glycol (meth)acrylate-based monomer (a) in which the mean additional molar number of an alkylene oxide is in a specific range and an unsaturated monomer (b) whose specific rate is specified as structural units so that the product of the mean additional molar number of each alkylene oxide and the weight percentage of (b) to the sum of (a) and (b) expressed in terms of acid type has a specific relation.


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Inventors:
SHIBA DAISUKE
YAMATO FUJIO
Application Number:
JP2004049890A
Publication Date:
October 07, 2004
Filing Date:
February 25, 2004
Export Citation:
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Assignee:
KAO CORP
International Classes:
C04B24/26; C04B18/14; C04B28/02; C04B103/32; (IPC1-7): C04B24/26; C04B18/14; C04B28/02
Domestic Patent References:
JP2001180998A2001-07-03
JPH0826793A1996-01-30
JP2004043280A2004-02-12
JP2001322854A2001-11-20
JP2003335562A2003-11-25
Attorney, Agent or Firm:
Satoshi Furuya
Takahiko Mizobe
Shinji Mochida
Yoshitsune Kazumasa



 
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