Basf Se Corporation

Peter Oechsle

Johann-Peter Melder

Joaquim Henrique Teles

Dominic Riedel

Dieter Kolassa

Wolfgang Krause

Nicolas Vautravers

Rainer Klopsch

Ansgar Gereon Altenhoff

Jan-Dirk Arndt

Richard Dehn

Olaf Kriha

Harald Winsel

Alexander Michael Haydl

Jaroslaw Michael Mormul

Alexandre Guthertz

The present invention relates to a process for purification of a mixture comprising water, N-alkyl-hydroxylammonium salts and some byproducts wherein from the mixture water and byproducts are distilled off until the purity of N-alkyl-hydroxylammonium salts in the residue is 95% or higher and additionally keeping the water content during and after the distillation≥40 wt.-% according to the residue.

Process for the purification of a mixture comprising N-alkyl-hydroxylammonium salts

The presently claimed invention is directed to 2,2,6-trimethyl-4,5-dihydro-3H-oxepine and its use to impart an aroma impression to a composition. The presently claimed invention also relates to a method of imparting such an aroma impression. The presently claimed invention is further directed to compositions comprising 2,2,6-trimethyl-4,5-dihydro-3H-oxepine and at least one aroma chemical as well as to compositions comprising 2,2,6-trimethyl-4,5-dihydro-3H-oxepine and at least one further component selected from the group consisting of aroma chemicals, surfactants, oil components, antioxidants, deodorant-active agents and solvents.

2,2,6-trimethyl-4,5-dihydro-3H-oxepine as aroma ingredient

Growing community of inventors

Ludwigshafen, Germany

Peter Oechsle