Sika Technology Ag

Toho Chemical Industry Co., Ltd.

Sika (China) Ltd.

Michael Wernher Danzinger

Akira Suga

Kaname Saitoh

Ueli Sulser

Akira Ikeda

Jürg Widmer

Seiichi Koshisaka

Taro Tsushima

Satoshi Kobayashi

Toshihiro Ogawa

Susumu Hashizume

Ikuhide Togami

Jennifer Liu

An admixture for a hydraulic composition includes a polycondensation product P containing a copolymer prepared by polycondensation of a monomer mixture containing compounds A to C of the following Formulae (A) to (C); and a polycarboxylic acid-based polymer Q including a structural unit having an amino and an imino group, and/or a structural unit having an amino, imino, and amido group: 

Admixture for hydraulic composition

To provide a chemical agent whereby adjustment of air volume is easier, particularly in a hydraulic composition having fly ash blended therein. An admixture for a hydraulic composition, having a structure indicated by general formula (1) and including a carbon blocker including either one type of compound selected from a group comprising phosphate esters or at least two mixtures; and a water-reducing agent. (In the formula, Rindicates a hydrogen atom, an alkyl group, an alkenyl group, or a (meth)acryloyl group, AO indicates a C2-3 oxyalkylene group, n indicates an average added molar number for the oxyalkylene group AO of 2-150, m indicates an integer between 1 and 3, M indicates a hydrogen atom, an alkali metal atom, a group II metal atom, an ammonium group, or an organic ammonium group.)

A copolymer, in particular a dispersing agent for hydraulically setting systems, includes at least three structural units S1, S2, S3 and optionally a further structural unit S4.

Dispersant for hydraulically setting systems

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Tuffenwies, Switzerland

Michael Wernher Danzinger