Basf Aktiengesellschaft

Basf Se Corporation

Hans-Juergen Denu

Ekkehard Jahns

Wilhelm Friedrich Beckerle

Manfred Schwartz

Bernhard Dotzauer

Joachim Pakusch

Kurt Wendel

Sebastian Roller

Eckehardt Wistuba

Michael Portugall

Juergen Schmidt-Thuemmes

Wolfgang Gaschler

Heinrich Sack

Bertold Bechert

Horst Seibert

Joost Leswin

Rolf Petri

Markus Koppers

Nicolas Tissier

Alexander Kurek

Xavier Mollat Du Jourdin

Jochen Gattermayer

Bernard Dotzauer

Joerg Alexander Dimmer

Rainer Pache

Michaela Reinsch

Janine Einhorn-Rech

Nicole Specht

The present invention relates to the use of coating compositions for coating fiber cement boards, which contain at least one acrylate based aqueous polymer dispersions as a binder. The present invention further relates to specific acrylate based aqueous polymer dispersions and to a process for preparing these specific acrylate based aqueous polymer dispersions.

Coating compositions for coating fibre cement board

The present invention relates to the use of aqueous multistage polymer dispersions obtainable by free-radically initiated aqueous emulsion polymerization, having a soft phase and a hard phase and having a hard-to-soft stage ratio of 25% to 95% by weight to 75% to 5% by weight, the glass transition temperature (Tg) of the soft phase, as first stage, being &#x2212;30 to 0&#xb0; C. and that of the hard phase, as second stage, being 20 to 60&#xb0; C., comprising at least one monomer of the general formula I in which the variables have the following definitions:n=0 to 2,R1, R2, R3=independently of one another hydrogen or methyl group,X&#x2550;O or NH,Y&#x2550;H, alkali metal or NH,to coat metal sheets.

Use of multi-stage polymerizate dispersions to coat metal sheets

The present invention relates to aqueous multistage polymer dispersions obtainable by free-radically initiated aqueous emulsion polymerization, having a soft phase and a hard phase, and a hard-to-soft stage ratio of 25% to 95% by weight to 75% to 5% by weight, the glass transition temperature (Tg) of the soft phase, as first stage, being &#x2212;30 to 0&#xb0; C. and that of the hard phase, as second stage, being 20 to 60&#xb0; C., comprising at least one monomer of the general formula I in which the variables have the following definitions:

Multistage polymer dispersions, processes for preparing them, and use thereof

Microcapsules comprising one or more lipophilic substances as core material and a polymer as capsule shell, which are obtainable by free-radical polymerization of an oil-in-water emulsion comprising

Microcapsules

A process for preparing a polymer powder by evaporating the volatile constituents from an aqueous dispersion of a film-forming polymer P, wherein prior to the evaporation of the volatile constituents the aqueous polymer dispersion still comprises drying assistants T, present in an amount of from 0.1 to 80% by weight, based on the polymer P of the dispersion, and there being used as drying assistant T polyvinylformamide. The polyvinylformamide used preferably has a K value (KW), determined by the method of Fikentscher in accordance with DIN 53726, of from 5 to 50.

Preparation of polymer powders

Precast concrete which is coated with a copolymer A with a glass transition temperature of rom -25.degree. to +30.degree. C. and composed of

Polymer-coated precast concrete

Shaped articles are produced from a finely particulate material as aggregate and an aqueous binder preparation containing an acrylate polymer by moistening the aggregate with the binder preparation, making it into the desired shape and then drying it, using a binder preparation whose binder is an acrylate polymer whose glass transition range is relatively high and which is formed from (A) a predominant amount of methyl methacrylate, (B) a minor amount of (meth) acrylic acid, (C) a minor amount of an optional alkyl acrylate and (D) a small optional amount of another specific polymerizable compound.

Method of preparing shaped articles from a mineral aggregate and a

Lightweight building board based on mineral fibers A and thermoplastic binders contains, based on A,

Lightweight building board

A shaped article is obtainable by impregnating or coating a preform composed in the main of mineral fibers, nonfibrous mineral fillers and starch with a composition which contains a binder comprising a copolymer composed of

Shaped articles

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Friedelsheim, Germany

Hans-Juergen Denu