Title:
METHOD FOR PRODUCING CEMENT DISPERSING AGENT
Document Type and Number:
Japanese Patent JP2011132383
Kind Code:
A
Abstract:
To provide a method for producing a cement dispersing agent which can efficiently disperse cement by addition in a smaller amount and comprises an itaconic acid serving as a main chain skeleton.
The method for producing a cement dispersing agent comprises a process (A) for polymerizing an itaconic anhydride to obtain a polyitaconic anhydride, and a process (B) for esterifying the obtained polyitaconic anhydride with a specific alcohol.
Inventors:
YOSHINAMI YUSUKE
KOYANAGI KOJI
KOYANAGI KOJI
Application Number:
JP2009293683A
Publication Date:
July 07, 2011
Filing Date:
December 25, 2009
Export Citation:
Assignee:
KAO CORP
International Classes:
C08F8/14; C04B24/26; C04B24/32; C04B28/02; C08G81/02; C08K3/20; C08L35/02
Domestic Patent References:
| JP2009138115A | 2009-06-25 | |||
| JP2006513288A | 2006-04-20 | |||
| JP2009536976A | 2009-10-22 | |||
| JP2000247707A | 2000-09-12 | |||
| JPH0812398A | 1996-01-16 |
Attorney, Agent or Firm:
Satoshi Furuya
Takahiko Mizobe
Shinji Mochida
Yoshitsune Kazumasa
Takahiko Mizobe
Shinji Mochida
Yoshitsune Kazumasa