Antifoaming agent for hydraulic composition, additive for hydraulic composition, and hydraulic composition

• Main Authors: NAITO, YUKI, FURUTA, AKIHIRO, OKADA, KAZUHISA, SAWADA, YOU
• Format: Patent
• Language: Chinese; English
• Published: 16.01.2020
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

An antifoaming agent for hydraulic compositions which is a polyoxyalkylene-based compound represented by general formula (1), the compound satisfying a first requirement, which is 0.16 ≤ n/(p+n+m) ≤ 0.40, and a second requirement, which is 20 ≤ (p+n+m) ≤ 48. General formula (1): RO-(AO)p-(EO)n-(AO)m...