Defoaming agent for cementitious compositions
AssigneeConstruction Research & Technology GmbH
InventorsKlaus Lorenz, Minoru Yaguchi, Tomomi Sugiyama, Gerhard Albrecht
Life of this patent
Estimating the term…
Abstract
A defoaming agent for cementitious compositions is provided, which has an excellent defoaming performance and does not segregate when mixed with a high performance AE water-reducing agent to form a single admixture or when diluted in water at the desired concentration, and which has excellent long term storage properties. The defoaming agent for cementitious compositions is obtained by mixing at least a polyethylene oxide derivative and a nonionic defoaming agent wherein the polyethylene oxide derivative has at one end a hydrophobic group with a branched structure and/or an unsaturated bond and at the other end an anionic group.
Claims11
A defoaming agent for cementitious compositions, obtained by mixing at least one polyethylene oxide derivative and at least one nonionic defoaming agent, wherein the polyethylene oxide derivative has at one end a hydrophobic group with at least one of a branched structure and an unsaturated bond, and at the other end an anionic group.
Dependencies are inferred from the claim text.