Title:
DISPERSING AGENT AND CEMENT ADMIXTURE
Document Type and Number:
WIPO Patent Application WO/1990/012642
Kind Code:
A1
Abstract:
A dispersing agent and a cement admixture are disclosed. The dispersing agent comprises a water-soluble salt of a copolymer of a component of a naphtha oil with maleic anhydride or its partial ester and has excellent dispersing properties, and a dispersion prepared by using this agent undergoes less changes with time. The cement admixture comprises a salt of a copolymer of a component of a naphtha oil with an unsaturated dicarboxylic acid anhydride and, optionally, a salt of formalin adduct of a sulfonate of an aromatic hydrocarbon-containing oil and is an excellent fluidizing agent. A cement compound containing this admixture shows a good initial fluidity which undergoes less deterioration with time.
Inventors:
OHTSU KIMIYO (JP)
ENOMOTO NORIHIDE (JP)
NARUSE YOSHIHIRO (JP)
TAKAGI MASATO (JP)
SUGIURA KEIJI (JP)
ENOMOTO NORIHIDE (JP)
NARUSE YOSHIHIRO (JP)
TAKAGI MASATO (JP)
SUGIURA KEIJI (JP)
Application Number:
PCT/JP1989/000412
Publication Date:
November 01, 1990
Filing Date:
April 17, 1989
Export Citation:
Assignee:
KAWASAKI STEEL CO (JP)
International Classes:
C04B24/22; C04B24/26; C04B28/02; C09K23/00; C09K23/52; (IPC1-7): B01F17/52; C04B24/26
Foreign References:
| JPH0682307A | 1994-03-22 | |||
| JPS5334130B2 | 1978-09-19 |
Other References:
See also references of EP 0422222A4
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