Patents by Inventor Albert Thomas Herrmann

Albert Thomas Herrmann has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of producing aldehydes and carboxylic acids by oxidizing primary alcohols
    Patent number: 6476260
    Abstract: The invention relates to a method for oxidizing primary alcohols in order to obtain aldehydes and/or carboxylic acids. The reaction takes place in the presence of a catalyst supported on aluminium oxides or aluminium silicates and containing palladium, platinum, cobalt, rhodium, ruthenium, iridium, rhenium, optionally with co-catalysts.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: November 5, 2002
    Assignee: RWE-DEA Aktiengesellschraft fur Mineraloel und Chemie
    Inventors: Albert Thomas Herrmann, Ernst Tönsen
  • Method for producing metal-free Guerbet alcohols
    Patent number: 6419797
    Abstract: There is provided a process for producing Guerbet alcohols not containing any heavy metals or soaps, wherein primary and/or secondary alcohols having 2 to 30 carbon atoms are condensed at elevated temperature in the presence of alkaline catalysts and/or heavy metal catalysts while eliminating the reaction water, and the reaction product is immediately separated by distillation without any additional purification.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: July 16, 2002
    Assignee: Sasöl Germany GmbH
    Inventors: Erich Scherf, Hans-Jürgen Letsch, Clemens Schröder, Albert Thomas Herrmann
  • Esters of aromatic polycarboxylic acids with 2-alkylalkan-1-ols
    Patent number: 6310234
    Abstract: The invention relates to esters of certain benzene polycarboxylic acids with 2-alkylalcohols, and their use as hydraulic fluid, as or in lubricant formulations or as an additive in cosmetics.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: October 30, 2001
    Assignee: RWE-DEA Aktiengesellschaft fuer Mineraloel und Chemie
    Inventors: Albert Thomas Herrmann, Jörg Fahl
  • Process for the continuous production of monocarboxylic acids
    Patent number: 5859269
    Abstract: A process for the continuous production of monocarboxylic acids from the corresponding alcohols by alkali fusion wherein the oxidation is continuously accomplished in an extrusion reactor without addition of diluents and the alkali salts of the monocarboxylic acids are discharged from the reactor as a solid product and are directly neutralised with mineral acids. High-purity monocarboxylic acids are obtained after phase separation.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: January 12, 1999
    Assignee: RWE-DEA Aktiengesellschaft fur Mineraloel und Chemie
    Inventors: Albert Thomas Herrmann, Arnold Meyer, Erich Scherf, Clemens Schroder, Ansgar Reichenauer, Ernst Tonsen