Basf Aktiengesellschaft

Reinhard B&auml;cher

Johannes Dobbelaar

Wolfgang H&uuml;mmer

Gerhard Auchter

Bernhard Schuler

Johannes T&uuml;rk

Rik Noordijk

Gerd Rehmer

Gerhard Bauer

Sven Lawrenz

Bernd Reck

Andreas Keller

Robert Rupaner

Chung-Ji Tschang

Gernot Franzmann

Bertold Bechert

Martin Meister

J&uuml;rgen Schmidt-Th&uuml;mmes

Bradley Ronald Morrison

Franz-Josef Mueseler

Wolfgang H&uuml;binger

Werner Kirchner

J&uuml;rgen Nahstoll

Gerhard Schumacher

J&uuml;rgen Hartmann

Pressure sensitive adhesives based on polymers of multistage construction

A process is described for reducing the residual monomer content in a liquid solution, mixture, melt, suspension or dispersion of a polymer by postpolymerization with addition of a redox initiator system at a reaction temperature appropriate to it and with an extremely short mixing time of the liquid system in the production reactor by metering&mdash;gradually, in portions or continuously&mdash;at least one of the redox initiator components required to initiate polymerization of the residual monomers over a period (metering time) which is from about 10 to 250 times the mixing time of the liquid system in said reactor.

Method for reducing residual monomers in liquid systems by adding an oxidation-reduction initiator system

In a process for preserving a mineral molding by coating the surface of the mineral molding with an aqueous composition comprising an aqueous polymer dispersion, the dispersed polymer P comprises an ethylenically unsaturated acid of the 2-acrylamido-2-methylpropanesulfonic acid type polymerized into it in free-radically polymerized form.

Preservation of a mineral molding

Pressure sensitive materials based on a multistep constituted of polymerizates

A polymer dispersion is prepared by free radical polymerization of an aqueous monomer emulsion by a process in which the monomer emulsion is prepared continuously at the rate of consumption.

Method for the production of a polymer dispersion by radical aqueous emulsion polymerization with a continuously produced aqueous monomer emulsion

Pressure-sensitive materials with small amounts of styrene

A method of emptying vessels containing dispersions, solutions or suspensions of polymers in which during the emptying process the liquid medium also used to take up the polymers into the dispersion, solution or suspension is passed into the space within the vessel that is not filled by the solution, dispersion or suspension, wherein the liquid medium used to take up the polymers into the dispersion, solution or suspension is introduced in vapor form.

Method of preventing or reducing formation of polymeric deposits in vessels during emptying

Growing community of inventors

Bad Dürkheim, Germany

Reinhard Bächer

Growing community of inventors

Bad Dürkheim, Germany

Reinhard B&auml;cher

Reinhard Bächer