Bayer Aktiengesellschaft

Lothar Ruetz

Werner Jeblick

Dieter W Bruck

Ernst Roos

Paul Uhrhan

Christian Laue

Reinhard Preuss

Edmund Krauthausen

Kurt-Rainer Stahlke

Fritz Feld

Konrad Ellegast

Roland Weisbeck

Heinrich Nassenstein

Gerwolf Quaas

Richard Menold

Hans G Gelhaar

Friedrich W Elsasser

This invention relates to easily conveyable and easily meterable mixtures having high stability in storage, containing aromatic mineral oils and phenylenediamines, the content of phenylenediamines in the mixture being 1 to 99 wt. %. The mixtures of mineral oils and phenylenediamines according to the invention are used in the production of rubbers and rubber articles.

Easily transportable and meterable mixtures of aromatic oils and

Enol ethers corresponding to the following general formula ##STR1## are suitable as non-discoloring ozone protective agents for rubber.

Process for increasing the ozone-resistance of a rubber with enol ethers

Condensation products of a diol with aldehydes corresponding to the following formula: ##STR1## in which R represents hydrogen or methyl, the methyl group being in the 3- and/or 4-position, and Y represents the number 0 or 1, a process for its production characterized in that diols are reacted with aldehyde compounds in known manner, and its use as an antiozonant for rubber.

Cyclic acetals of diols, their production of their use as

The ozone-resistance of natural and synthetic rubber is increased when an enol ether of the formula ##STR1## is incorporated.

Process for increasing the ozone-resistance of a rubber

The present invention relates to new dihydrobenzothiazine compounds, to the production thereof and to the use thereof as stabilizers and co-stabilizers against the oxidative and/or thermal degradation of organic polymers.

Dihydrobenzothiazine compounds and the preparation thereof

This invention relates to an apparatus for applying a thin layer of liquid systems to fibers, threads or sheets which are moved uniformly in a linear direction which comprises continuously foaming the liquid system and bringing the threads, fibers or sheets into contact with the foamed system by a one-way process.

Apparatus for coating fibers, threads and sheets

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Dormagen, Germany

Lothar Ruetz