Rudolf Kummer, Dieter Franz, Hans P Rath: Polybutyl-and polyisobutylamines, their preparation, and fuel compositions containing these. BASF Aktiengesellschaft, Keil & Weinkauf, May 23, 1989: US04832702 (102 worldwide citation)

The fuel or lubricant composition proposed contains one or more polybutyl or polyisobutylamines of the general formula I ##STR1## where R.sub.1 is a polybutyl- or polyisobutyl radical derived from isobutene and up to 20% by weight of n-butene and R.sub.2 and R.sub.3 are identical or different and ar ...

Wolfgang Reif, Lothar Franz, Peter Stops, Volkmar Menger, Rainer Becker, Rudolf Kummer, Siegfried Winderl: Preparation of amines. BASF Aktiengesellschaft, John H Shurtleff, June 25, 1996: US05530127 (67 worldwide citation)

A process for the preparatiion of an amine which comprises reacting a primary or secondary alcohol and a nitrogen compound selected from the group consisting of ammonia and primary and secondary amines, at temperatures of from 80.degree. to 250.degree. C. and pressures of from 1 to 400 bar using hyd ...

Dieter Franz, Rudolf Kummer, Helmut Mach, Hans P Rath: Motor fuel or lubricant composition containing polybutyl or polyisobutyl derivatives. BASF Aktiengesellschaft, Keil & Weinkauf, August 22, 1989: US04859210 (54 worldwide citation)

Fuel motor compositions and lubricant compositions contain small amounts of one or more polybutyl or polyisobutyl alcohols of the formula (I)

Rudolf Kummer, Kurt Schwirten, Hans Dieter Schindler deceased, by Maria Elisabeth Schindler, by Ute Lang, by Rainer Schindler heirs at law: Regeneration and separation of rhodium-containing or iridium-containing catalysts from distillation residues following hydroformylation. BASF Aktiengesellschaft, Johnston Keil Thompson & Shurtleff, May 3, 1977: US04021463 (30 worldwide citation)

Regeneration and separation of catalysts Me(CO)(PR.sub.3).sub.2 Hal(I) and HMe(CO)(PR.sub.3).sub.3 (II), where Me is rhodium or iridium, Hal is halogen and R denotes the same or different hydrocarbon radicals, from distillation residues of hydroformylation mixtures by treating said residues with aqu ...


Hans Juergen Nienburg, Rudolf Kummer: Production of bis-(dimethyl) acetals of hexane dialdehydes. BASF Aktiengesellschaft, Thompson & Shurtleff, July 18, 1978: US04101588 (14 worldwide citation)

An improved process for the production of aliphatic or cycloaliphatic dialdehydes or acetals of the same by reaction of an aliphatic or cycloaliphatic conjugated diene with carbon monoxide and hydrogen in the presence of a rhodium catalyst which is modified with a tertiary phosphine or phosphite at ...


Rudolf Kummer, Hans Juergen Nienburg, Heinz Hohenschutz, Max Strohmeyer, Theo Teutsch: Manufacture of predominantly straight-chain aldehydes. Badische Anilin & Soda Fabrik Aktiengesellschaft, Johnston Keil Thompson & Shurtleff, March 2, 1976: US03941848 (12 worldwide citation)

An improvement in the process for the manufacture of predominantly straight-chain aldehydes by hydroformylation of olefinically unsaturated compounds of 2 to 20 carbon atoms with carbon monoxide and hydrogen in which, in a first stage, aqueous cobalt solutions are treated with carbon monoxide and hy ...

Klaus Joerg, Franz Josef Mueller, Wolfgang Harder, Rudolf Kummer: Process for the preparation of dialkyl carbonates. BASF Aktiengesellschaft, John H Shurtleff, August 25, 1992: US05142087 (10 worldwide citation)

A process for the continuous synthesis of dialkyl carbonates of the general formula I ##STR1## in which R denotes C.sub.1 -C.sub.4 -alkyl, by reaction of C.sub.1 -C.sub.4 -alkanols with carbon monoxide and oxygen at elevated temperature and pressure and in the presence of a copper-containing catalys ...