Kurita Water Industries Ltd.

Bk Giulini Gmbh

Bk Giulini Chemie Gmbh

Rudolf Lunkenheimer

Reinhold Sedelies

Istvan Potencsik

Johannes Breker

Wolfgang Hater

Michael Urschey

Tim Stephan

Horst Altmann

Florian Wolf

Hubert Dörrer

Jochen Stein

Ute Höötmann

Hasan Ulubay

Joachim Imhof

Heinz-Willi Weih

The present invention relates to the use of phospho-tartaric acid and/or the salts thereof for the treatment of water in water-conducting systems.

Use of phosphotartaric acid and the salts thereof for the treatment of water in water-conducting systems

The present invention relates to the use of polymer dispersions for dust control, wherein these polymer dispersions can be obtained by radically initiated emulsion polymerisation of the components a to e: a. 2-75% by weight styrene and/or substituted styrene and b. 0 to 75% by weight acrylic acid C1-C2 ester and/or methacrylic acid C1 to C12 ester and c. 0 to 50% by weight acrylonitrile and/or methacrylonitrile and d. 0 to 50% by weight of at least one further copolymerisable ethylenically unsaturated monomers with one or more C&#x2014;C double bonds in the presence of e. 10 to 7% by weight starch and/or modified starch and/or degraded starch and/or degrated modified starch wherein the polymerisation is carried out in water.

Use of a polymer dispersion as dust control agent

The invention relates to suspensions, to the production of said suspensions, and to the use thereof for accelerating the setting and hardening of cement and mixtures containing the same. According to the invention, said suspensions consist of aluminium sulphate in a quantity of more than 8 wt. % as AlO, preferably between 10 and 12 wt. %, and of suspended bentonite in a quantity of between 1 and 7 wt. %. Said suspensions can especially be used as economical and ecological alternatives in the field of wet spraying. The inventive suspensions are free of COD and alkali.

Suspensions

A solidification and curing accelerator for hydraulic binders produced by a process including providing a reaction mixture composed of constituents (a) - (e) as follows: (a) at least one of basic aluminum salts which are substantially water insoluble and aluminum hydroxide; (b) at least one of aluminum sulfate which is substantially water soluble and sulfuric acid; (c) at least one of an organic carboxylic acid or mixtures of at least two organic carboxylic acids; (d) aluminum salts of organic carboxylic acids; and (e) at least one organic and inorganic substance selected from the group consisting of sulfates, hydrogen-sulfates, carbonates, hydrogen-carbonates, alkaline earth metal oxides, and alkaline earth metal hydroxides; adding water to the reaction mixture and reacting at a temperature ranging up to 150 &deg; C. for a time effective to provide a reaction product which is a solution in water.

Solidifying and hardening accelerator for hydraulic binders

Growing community of inventors

Wackernheim, Germany

Rudolf Lunkenheimer