Title:
CEMENT DISPERSANT
Document Type and Number:
Japanese Patent JP3226125
Kind Code:
B2
Abstract:
PURPOSE: To provide a cement dispersant excellent in water-reducing effect of cement and hardening speed.
CONSTITUTION: This cement dispersant contains an alkylpolyalkylene glycol ester of an alkyl vinyl ether-maleic anhydride copolymer, synthesized by esterifying a copolymer of 30 to 70mol% maleic anhydride and 30 to 70mol% alkyl vinyl ether represented by general formula I described below with an alkylpolyalkylene glycol expressed by general formula II described below by 1 to 50mol%. In general formula I, CH2=CHOR, R is a 1 to 4C alkyl group. In general formula II, R'OAOmH, A is a 2 to 4C alkylene group and R' is a 1 to 4C alkyl group. (m) is an integer of 2 to 25.
Inventors:
Hiroaki Shimizu
Yuji Yagi
Kazuhiko Hosaka
Yuji Yagi
Kazuhiko Hosaka
Application Number:
JP3992393A
Publication Date:
November 05, 2001
Filing Date:
March 01, 1993
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
International Classes:
C04B24/26; C08F16/16; C08F216/20; C08F220/04; C08F222/06; C08L33/02; C09K23/52; C08L35/00; (IPC1-7): C04B24/26; B01F17/52; C08F216/20; C08F222/06; C08L35/00
Domestic Patent References:
| JP6311557A | ||||
| JP4175254A | ||||
| JP570654A |