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US 2024/0409463 A1Published application
Hydraulic composition, thickener and additive therefor
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsHironao SAITO, Hidekazu KONISHI
Life of this patent
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Abstract
A thickener comprising (A) a hydroxyalkyl alkyl cellulose and (B) a specific polyethylene glycol derivative is effective for imparting frost damage resistance, good fluidity and a bleeding reducing effect to a hydraulic composition.
Claims15
A thickener for hydraulic compositions comprising
- (A) a hydroxyalkyl alkyl cellulose and
- (B) a polyethylene glycol derivative having an IOB value in the organic conception diagram of 0.3 to 1.8 and a weight average molecular weight Mw of 300 to 2,500 as measured by gel permeation chromatography versus polystyrene standards, and containing at least one RCOO(C2H4O)n— wherein R is a C10-C24 straight or branched monovalent hydrocarbon group and n is an integer of 3 to 40 in the molecule and a polyethylene glycol end OH or —OH group as a functional group.
A hydraulic composition comprising
- (A) a hydroxyalkyl alkyl cellulose,
- (B) a polyethylene glycol derivative having an IOB value in the organic conception diagram of 0.3 to 1.8 and a weight average molecular weight Mw of 300 to 2,500 as measured by gel permeation chromatography versus polystyrene standards, and containing at least one RCOO(C2H4O)n— wherein R is a C10-C24 straight or branched monovalent hydrocarbon group and n is an integer of 3 to 40 in the molecule and a polyethylene glycol end OH or —OH group as a functional group,
- a hydraulic substance, and
- water and/or a liquid water-reducing agent.
1 more element
Dependencies are inferred from the claim text.