Title:
CEMENT DISPERSANT AND CONCRETE COMPOSITION CONTAINING THE DISPERSANT
Document Type and Number:
WIPO Patent Application WO/2000/039045
Kind Code:
A1
Abstract:
A cement dispersant (especially a dispersant for concretes with ultrahigh performance) comprising as the main component a water-soluble amphoteric copolymer obtained by copolymerizing (A) a polyamide-polyamine or an alkylene oxide adduct thereof with (B) (meth)acrylic acid or an alkali metal, ammonium, or alkanolamine salt thereof and (C) a polyalkylene glycol ester of (meth)acrylic acid in an A/B/C ratio of (10-40)/(10-40)/(50-80) (wt.%); and a concrete composition (especially an ultrahigh-performance concrete) containing the dispersant. The dispersant satisfies all of a water-reducing effect, slump flow retention, strength development, etc.
Inventors:
AMAYA TOSHIHIKO (JP)
IKEDA AKIRA (JP)
IMAMURA JUN (JP)
KOBAYASHI ATSUSHI (JP)
SAITO KANAME (JP)
DANZINGER WERNHER M (JP)
TOMOYOSE TETSU (JP)
IKEDA AKIRA (JP)
IMAMURA JUN (JP)
KOBAYASHI ATSUSHI (JP)
SAITO KANAME (JP)
DANZINGER WERNHER M (JP)
TOMOYOSE TETSU (JP)
Application Number:
PCT/JP1999/007261
Publication Date:
July 06, 2000
Filing Date:
December 24, 1999
Export Citation:
Assignee:
SIKA LTD (JP)
AMAYA TOSHIHIKO (JP)
IKEDA AKIRA (JP)
IMAMURA JUN (JP)
KOBAYASHI ATSUSHI (JP)
SAITO KANAME (JP)
DANZINGER WERNHER M (JP)
TOMOYOSE TETSU (JP)
AMAYA TOSHIHIKO (JP)
IKEDA AKIRA (JP)
IMAMURA JUN (JP)
KOBAYASHI ATSUSHI (JP)
SAITO KANAME (JP)
DANZINGER WERNHER M (JP)
TOMOYOSE TETSU (JP)
International Classes:
C04B24/26; C04B24/28; C04B24/32; C04B28/02; C08F290/06; C08L33/06; C09K23/00; C09K23/52; C04B103/40; (IPC1-7): C04B24/26; C04B103/40; C08F290/06; C08F299/02; B01F17/00
Foreign References:
| JPH0733496A | 1995-02-03 |
Other References:
See also references of EP 1184353A4
Attorney, Agent or Firm:
Hanabusa, Tsuneo (1-chome Kandasurugadai Chiyoda-ku, Tokyo, JP)
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