Bernhard Schulz, Joachim Paust, Joachim Schneider: Manufacture of symmetrical carotenoids. BASF Aktiengesellschaft, Keil Thompson & Shurtleff, August 8, 1978: US04105855 (29 worldwide citation)

Symmetrical carotenoids are prepared from the half-molecules by dimerizing the phosphonium salts of the half-molecules with peroxides, peroxo compounds or peroxy compounds in an alkaline medium.

Peter P Hoppe, Joachim U Schneider, Bernhard Schulz, Hubert Tiefenbacher: Stable injectable .beta.-carotene micellar solutions and their preparation. BASF Aktiengesellschaft, Keil & Witherspoon, March 6, 1984: US04435427 (22 worldwide citation)

A process for the preparation of .beta.-carotene micellar solutions, wherein a non-ionic emulsifier which is suitable for the preparation of micellar solutions is heated at from 160.degree. to 180.degree. C. and a total of from 20 to 30% by weight, based on the emulsifier, of .beta.-carotene is intr ...

Bernhard Schulz, André Dickgiesser: Electrical service switching device with an arc blowout device. ABB, Buchanan Ingersoll & Rooney PC, March 16, 2010: US07679020 (8 worldwide citation)

The disclosure relates to an electrical service switching device, in particular a circuit breaker, motor circuit breaker or the like, having a housing which has two housing halves and connecting means for electrical connection to busbars and/or power lines, having at least one electrical switching c ...

Bernhard Schulz, Paul Grafen, Hans Ulrich Scholz, Hans Grassner, Werner Reif: Preparation of aqueous solutions or fine aqueous dispersions of polyenyltriarylphosphonium salts. BASF Aktiengesellschaft, Keil & Witherspoon, January 8, 1980: US04182731 (8 worldwide citation)

Aqueous solutions of polyenyltriarylphosphonium salts are prepared from solutions of the corresponding polyenyltriarylphosphonium salts in organic solvents by driving off the solvent with steam, part of the steam being allowed to condense. Some of the said triarylphosphonium salts may be used direct ...

Rolf Fischer, Bernhard Schulz: Preparation of 4-monoacetals of 2-methylbut-2-ene-1,4-dial. BASF Aktiengesellschaft, Oblon Fisher Spivak McClelland & Maier, February 14, 1989: US04804786 (6 worldwide citation)

4-Monoacetals of (E)-2-methylbut-2-ene-1,4-dial of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each an aliphatic hydrocarbon radical of 1 to 12 carbon atoms, cycloalkyl of 5 to 7 carbon atoms or benzyl, or R.sup.1 and R.sup.2 together form an ethylene or propylene radical which may ...

Bernhard Schulz, Hans Grassner, Peter Jaeger, Heinz Nohe: Manufacture of symmetrical carotenoids. BASF Aktiengesellschaft, Keil Thompson & Shurtleff, November 28, 1978: US04127455 (6 worldwide citation)

Symmetrical carotenoids are manufactured from the molecular halves thereof by a process wherein phosphonium salts of the molecular halves of these symmetrical carotenoids are oxidized electrochemically in a solvent and in the presence of a base, causing the molecular halves to dimerize, with elimina ...

Paul Grafen, Henning Kroesche, Bernhard Schulz, Joachim Paust, Sigberg Pfohl: Manufacture of tocopherol. BASF Aktiengesellschaft, Keil & Witherspoon, March 4, 1980: US04191692 (6 worldwide citation)

In the manufacture of tocopherol (vitamin E) by reaction of isophytol with trimethylhydroquinone in the presence of zinc chloride and acid in a hydrocarbon solvent one of the starting compounds, isophytol, is pretreated with small amounts of ammonia or an amine.

Juergen Frank, Udo Rheude, Bernhard Schulz, Joachim Paust, Eckhard Hickmann: 2,5-bis(1,1-dialkoxy-2-propyl)-2,5-dihydrofurans, the preparation thereof and the use thereof for the preparation of carotenoids. BASF Aktiengesellschaft, Keil & Weinkauf, January 17, 1995: US05382732 (2 worldwide citation)

A process of preparing symmetric C.sub.40 -carotenoids by reacting a C.sub.15 -triphenylphosphonium salt of the formula ##STR1## and a 2,5-bis(1,1-dialkoxy-2-propyl)-2,5-dihydrofuran to form a reaction product containing a diacetyl and a triphenylphosphonium salt, adding a strong base to the reactio ...

Karl Heinz Kuhl, Eberhard Muranka, Bernhard Schulz, Asmund Tielens: Electrical resistor and method of making same. TRW, Jacob Trachtman, October 17, 1978: US04121189 (2 worldwide citation)

An electrical resistor and method of making same comprising an elongated resistor element having end sections and a resistance material extending therebetween, and a connecting part which is pressed onto at least one end section of the resistor for being bonded with the resistor element, the connect ...

Paul Grafen, Hans Ulrich Scholz, Bernhard Schulz: Treatment of methanolic-aqueous residues from syntheses employing triphenylphosphonium salts. BASF Aktiengesellschaft, Keil & Witherspoon, June 3, 1980: US04206153 (1 worldwide citation)

A process for treating residues which result from the Wittig synthesis of olefins and which consist principally of methanol, triphenylphosphine oxide, salts and organic by-products, by steam-stripping the volatile constituents, with partial condensation of the steam, and separating the resulting aqu ...

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