Patent ID: 8519028
Filing Date: 2013-08-27
Classification: C04B,C08F,C08K,C08L

Abstract:
1. An early strengthening agent for a hydraulic composition, comprising one or more compounds (A) selected from the group consisting of: a compound represented by the following general formula (A1): wherein R represents a hydrogen atom, a methyl group or an ethyl group, and Z represents —OH or —O—CH a compound represented by the following general formula (A2): wherein A the compound represented by the general formula (A2) comprises an adduct of 1 mole of ethylene oxide, an adduct of 2 moles of ethylene oxide, and an adduct of 3 moles of ethylene oxide in a total amount of 43% by weight of more, wherein an amount of the adduct of 1 mole of ethylene oxide is 15 to 100% by weight, and a compound represented by the following general formula (A3): wherein R's are the same as or different from one another and each represent a hydrogen atom or a group selected from the group consisting of a methyl group, an ethyl group and a propyl group, at least one of R's is group selected from the group consisting of a methyl group, an ethyl group and a propyl group; and A