Bayer Aktiengesellschaft

Rhein Chemie Rheinau Gmbh

Karl Nutzel

Klaus Morche

Rolf Dhein

Karl-Heinz Hentschel

Michael Sauerbier

Werner Rasshofer

Hans Rudolph

Richard Kopp

Josef Witte

Ernst Roos

Peter Schuster

Kurt Schilling

Helfried Ehrend

Wolfgang Schule

Armin Bauer

Dieter Theisen

Wolfgang Kruger

Rudolf Punessen

Friedrich Haas

Hans-Joachim Jahn

A process for the production of diorganodisulfides by oxidation of meraptans in which the mercaptan is reacted with a halogen compound capable of releasing at least one halogen atom and taking up a hydrogen atom instead, the reaction being carried out at 0.degree. to 100.degree. C. in the presence of base and, optionally, a phase transfer catalyst.

Process for the production of disulfides

A polyurethane-based reactive mass composed of

Polyurethane-based reactive mass and its use for the production of

Epoxidized and subsequently cross-linked esters of alcohols which are at least dihydric and unsaturated fatty acids may be used as active processing substance in polymers, in particular elastomers, at higher temperatures, in particular at higher vulcanization temperatures, than 'Factice'. They may be produced by a particularly elegant one-shot reaction.

Use of cross-linked epoxidized fatty oils in vulcanizing polymers

Esterification products of monoalcohols and dicarboxylic acids, or of polyhydric alcohols and monocarboxylic acids respectively, containing 5 to 45% by weight of units of hydroxycarboxylic acids and having a ratio of carbon to oxygen atoms greater than 4.1 obtained from (a) aliphatic C.sub.1 -C.sub.14 alcohols, (b) aliphatic C.sub.4 -C.sub.18 carboxylic acids and optionally cycloaliphatic C.sub.6 -C.sub.12 and aromatic C.sub.7 -C.sub.12 carboxylic acids, and (c) lactones of aliphatic C.sub.5 -C.sub.12 hydroxycarboxylic acids. They are suitable for the preparation of lubricants and lubricant compositions.

Lactone-modified ester oils

An ester base stock which comprises pentaerythritol, cyclohexyl carboxylic acid, isostearic acid and at least one other C.sub.6 -C.sub.16 saturated aliphatic monocarboxylic acid, having low volatility, a high flashpoint, and increased basic viscosity as well as a very high viscosity index.

Carboxylic acid esters of pentaerythritol

Non-hardening high molecular weight trans-polypentenamers

A non-discoloring stabilizer system for trans-polypentenamer of:

Non-discoloring stabilizers

Growing community of inventors

Neulussheim, Germany

Karl Nutzel