Basf Aktiengesellschaft

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Basf Se Corporation

Basf Agro B.v.

Baf Aktiengesellschaft

Basell Polyolefine Gmbh

Heinz Friedrich Sutoris

Gerhard Wagenblast

Andreas Deckers

Bernd Wolf

Joachim Gebhardt

J&uuml;rgen Schr&ouml;der

Volker Schliephake

Alexander Aumuller

Thomas Jaworek

Andreas Koch

Wilhelm Weber

Jacques Dupuis

Sylke Haremza

Arend Jouke Kingma

Daniel Saelinger

Hubert Trauth

Roland Goetz

Harald Keller

Konrad Mitulla

Roger G Klimesch

Manfred Niessner

Florian Vogt

Timo Frassetto

Eckard Schauss

Philip Muelheims

Alexander Aum&uuml;ller

Christiane Alznauer

Hermann Uhr

Sebastian Illies

Swapnil Yerande

Dieter Littmann

Kaspar Evertz

Michael Fischer

John Lynch

David Christie

Knut Kessel

Roman Benedikt Raether

Frank-Olaf Mähling

J&uuml;rgen Decker

Rainer Rahm

Klaus Joachim M&uuml;ller-Engel

Manfred Appel

Harish Shinde

Frank-Olaf M&auml;hling

Bradley Ronald Morrison

Susanne Brinkmann-Rengel

Robin Thiele

Roland Merger

Claus Kaliba

Kailaskumar Borate

Yvon Durant

Jizhuang Cao

Erik Hofmann

J&uuml;rgen Zubiller

Marcel Hofrichter

Alexander Aumüller

The present invention relates to a process for the preparation of α-methyl-[4-(nitro)-2-(trifluoromethyl)]-benzyl nitrate and to the α-methyl-[4-(nitro)-2-(trifluoromethyl)]-benzyl nitrate.

Process for the preparation of a-methyl-[4-(nitro)-2-(trifluoromethyl)-benzyl nitrate

The present invention relates to a process for the preparation of 1-[4-nitro-2-(trifluoromethyl)-phenyl]-alkanones and substituted phenoxyphenyl ketones.

Process for the preparation of 1-[4-nitro-2-(trifluoromethyl)phenyl]-alkanones

A description is given of a stabilizer composition comprising

Stabilizer composition

Method for preventing undesired polymerization in a mixture of substances containing ethylenically unsaturated compounds

An inhibitor mixture containing, as components, a) at least one nitroxyl radical (derivative), b) at least one phenol (derivative) and c) at least one chemical compound which contains at least one phosphorus atom which has the oxidation state &plus;3 is preferably used for stabilizing compounds capable of free radical polymerization.

Inhibitor composition for stabilizing substances capable of free radical polymerization

A process of free-radically initiated aqueous emulsion polymerization, in which monomers are polymerized in the presence of a N-oxyl radical and by means of special free-radical polymerization initiators at more than 100&deg; C. and at pressures above the vapor pressure of the polymerization mixture.

Stable N-oxly radical assisted emulsion polymerization under pressure

N-oxyl radicals

In a process for the polymerization or copolymerization of ethylenically unsaturated monomers in the presence of polymerization initiators which decompose to form free radicals in a continuously operated polymerization apparatus comprising a fresh gas feed line, a precompressor, a postcompressor, a reactor, a pressure maintenance valve, a high-pressure circuit having a high-pressure product separator and a high-pressure circulation gas return line, a product valve and a low-pressure circuit having a low-pressure product separator and a low-pressure circulation gas return line, nitrogen monoxide or oxygen is introduced as inhibitor into the high-pressure circuit, into the low-pressure circuit and/or the precompressor.

Method for carrying out radical ethylene high-pressure polymerization while preventing undesired polymer deposits

In a process for stabilizing chemical compounds having at least one ethylenically unsaturated bond to undesired free radical polymerization, a nitroxyl radical and a chemical compound containing phosphorus in chemically bonded form are added to the unsaturated compound present as pure substance or as a component of a mixture.

Method for stabilizing chemical compounds containing at least one ethylenically unsaturated bond in order to prevent undesirable radical polymerization

Mixture of substances containing compounds with vinyl groups and stabilizers

An article having a metallic surface treated with polymeric complexing agent is described. Particularly suitable polymeric complexing agents are phosphonoalkylated polyethyleneimines and/or carboxyalkylated polyethyleneimines and/or vinylimidazole polymers. As a rule, the treated metallic surface forms the total inner surface or a part of the inner surface of a process apparatus or of a container. The surface is protected by the treatment, in particular from the adhesion of polymer.

Apparatus having a metallic surface protected from undesired deposition of polymer

Stabilized monomer composition

Pressurization of ethylenically unsaturated monomers

Vinyl monomers are polymerized in the aqueous phase in the presence of at least one N-oxyl compound of a secondary amine, having no hydrogen atoms bonded to the &agr; carbon atoms. This process substantially eliminates deposits on reactor surfaces.

Method for polymerizing vinyl monomers

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Frankenthal, Germany

Heinz Friedrich Sutoris