Construction Research & Technology Gmbh

Basf Se Corporation

Pci Augsburg Gmbh

Werner Stohr

Volker Schwarz

Michael Schinabeck

Steffen Wache

Joachim Riedmiller

Wolfgang Seidl

Klaus-Dieter Hoetzl

Boris Breitscheidel

Manfred Bichler

Josef Weichmann

Stefan Friedrich

Gregor Herth

Silke Flakus

Uwe Holland

Peter Gaeberlein

Siegfried Zuern

Thomas Heichele

Patrick Weiss

Klaus-Dieter Hötzl

Juergen Bader

Christoph Hofheinz

Yvonne Schaepers

Stefan Koehler

Christian Huber

Astrid Kramer

Markus Streicher

Kornelia Kratzer

Alexander Ehle

Silvia Dürndorfer

Andreas Eisenreich

Siegfried Zürn

Markus Wiedemann

Matthias Degenkolb

Klaus Hoetzl

Peter Gäberlein

Ulrich Bäurle

Paul Müller

Yvonne Schäpers

A binder composition that includes cement, optionally calcium sulfate, at least one zinc salt and at least one alkylamine, and to a dry-mortar mixture that includes said binder composition. The present invention further relates to the use of a composition composed of a zinc salt and an alkylamine for achieving high early strengths in a binder composition.

Use of zinc salts in combination with alkyl amines in cement-based dry mortar mixtures

The invention relates to a pulverulent composition comprising, based on the overall mass of the composition, A) at least 20 wt % of a calcium sulfate-based binder and B) 0.01 to 4 wt % of at least one copolymer obtainable by polymerizing a mixture of monomers comprising (I) at least one ethylenically unsaturated monomer which comprises at least one radical from the series carboxylic acid, carboxylic salt, carboxylic ester, carboxylic amide, carboxylic anhydride, and carboxylic imide and (II) at least one ethylenically unsaturated monomer having a polyalkylene oxide radical, the pulverulent composition being producible by a method in which a powder component comprising a calcium sulfate-based binder is contacted with a liquid hydrous component comprising less than 30 wt % of an organic solvent, comprising B), the liquid hydrous component being used in an amount of less than 20 wt %, based on the overall mass of the pulverulent composition, and the pulverulent composition comprising no hydraulic binder. A binder composition comprising an inventive pulverulent composition is also disclosed.

Rapidly suspendable pulverulent composition

A proposal is made for a cementitious system which comprises accelerator particles coated with crosslinked shellac, for the use as an additive component which comprises the accelerator particles coated with crosslinked shellac, and for a cement slurry which comprises the cementitious system and water.

Cementitious system comprising accelerator particles coated with crosslinked shellac

The use of cyclohexanepolycarboxylic acid derivatives for reducing or minimizing the dust emission when handling pulverulent construction chemistry products, processes for the preparation of the pulverulent construction chemistry products and hydraulically setting materials containing the cyclohexanepolycarboxylic acid derivatives according to the invention are proposed.

Use of cyclohexane polycarboxylic acid derivatives for removing dust from chemical construction products

The use of a mixture of at least one polyol and at least one cyclohexanepolycarboxylic acid derivative for reducing or minimizing the dust emission when handling pulverulent construction chemistry products, processes for the preparation of the pulverulent construction chemistry products and hydraulically setting materials containing the mixture according to the invention are proposed.

Use of polyols and cyclohexane polycarboxylic acid derivatives for the removal of dust from chemical construction products

The invention relates to polymer-modified cement-containing building material dry mixes which contain a redispersible polymer powder, water retention agents based on polysaccharide structures, a calcium-containing setting accelerator and a superabsorbent copolymer.

Polymer-modified building material dry-mixes

The invention relates to a pulverulent building material composition, preferably a factory dry mortar and in particular a tile adhesive, joint grout, knifing filler, sealing slurry, repair mortar, equalization mortar, basecoat adhesive, adhesive for composite thermal insulation systems (CTISs), mineral plaster or render, fine knifing filler or screed system, containing an ester of A) at least one compound selected from the group consisting of neopentyl glycol, 2-methyl-2-(hydroxymethyl)-1,3-propanediol and pentaerythritol with B) a carboxylic acid component.

Dust free powdery building material composition

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Augsburg, Germany

Werner Stohr