Grillo-werke Ag

Dieter Mm Rohe

Klaus Driemel

Ingo Biertuempel

Klaus Bunthoff

Joachim Van De Flierdt

Peter Bubel

Helmut Nies

The process for the preparation of methanesulfonic acid by reacting sulfite ions within an aqueous system with dimethyl sulfate at an elevated temperature and adding a strong acid subsequently, wherein the molar ratio of sulfite ions to dimethyl sulfate is 1.5 to 2.5:1, preferably 2:1, and the reaction charge is maintained at said elevated temperature for at least 2 h, preferably 4 h.

Process for the preparation of methanesulfonic acid

Disclosed are deodorants containing the hydrolyzed ene-adducts and Diels-Alder adducts of ricinene fatty acids and maleic anhydride, which preferably additionally contain

Deodorants and the preparation and use thereof

Copolymers of unsaturated carboxylic acids with alkaline solutions of monosaccharides or disaccharides capable of forming enolates provide polycarboxylates which are excellently suitable as sequestrants, complexing agents and co-builders in washing and cleaning agents.

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Dinslaken, Germany

Dieter Mm Rohe