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US 5,179,170 AGranted
Dispersant and cement admixture
AssigneeKawasaki Steel Corporation
InventorsKimiyo Ohtsu, Norihide Enomoto, Yoshihiro Naruse, Masato Takagi, Keiji Sugiura
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AssigneeKawasaki Steel Corporation
InventorsKimiyo Ohtsu, Norihide Enomoto, Yoshihiro Naruse, Masato Takagi, Keiji Sugiura
Estimating the term…
The dispersant composed of a water-soluble salt of either a copolymer of a component in naphtha oil and maleic anhydride or a partial esterification product of said copolymer has improved dispersing ability and the dispersion containing this dispersant will experience only small changes with time. The cement admixture which is a salt of a copolymer of a component in naphtha oil and an unsaturated dicarboxylic acid anhydride or which has further contains a salt of the product of condensation between formaldehyde and a sulfonated aromatic hydrocarbon containing oil is an effective plasticizer and the cement mix incorporating this admixture has a satisfactory initial flow and will experience only small decrease in flowability over time.
A dispersant composed of a water-soluble salt of a copolymer produced by polymerizing a naphtha oil and maleic anhydride, said naphtha oil containing at least 5 wt % of polymerizable double bond components consisting essentially of
A dispersant composed of a water-soluble salt of a partial esterification product of a copolymer produced by polymerizing a naphtha oil and maleic anhydride, said naphtha oil consisting essentially of
A cement admixture which comprises at least one component selected from the group consisting of alkali metal salts, ammonium salts and amine salts of a copolymer produced by polymerizing a naphtha oil and an unsaturated dicarboxylic acid anhydride, said naphtha oil consisting essentially of
Dependencies are inferred from the claim text.