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US 2007/0181042 A1Published application
Additive for hydraulic material
AssigneeNippon Shokubai Co., Ltd.
InventorsMari Masanaga, Tsuyoshi Hirata
Life of this patent
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Abstract
An additive for a hydraulic material which comprises a polyamine compound having a hydrocarbon group of 4-30 carbon atoms as a side chain as an essential component is provided. The additive can effectively reduce the drying shrinkage of a cement material.
Claims12
An additive for a hydraulic material which comprises a polyamine compound having a hydrocarbon group of 4-30 carbon atoms as a side chain as an essential component.
Dependencies are inferred from the claim text.