Patents Represented by Attorney, Agent or Law Firm Aaron E. Ettelman
  • Processes for preparing alkoxylated nonionic surfactants using hydrotalcite catalysts
    Patent number: 6646145
    Abstract: Processes for preparing alkoxylated nonionic surfactants are disclosed, wherein a compound having at least one active hydrogen atom, a carboxylic acid ester or mixtures thereof are reacted with an alkylene oxide in the presence of a hydrotalcite catalyst to form a reaction product mixture; and the reaction product mixture is combined with an acid in at least an equimolar amount based on the amount of the catalyst present.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: November 11, 2003
    Assignee: Cognis Deutschland GmbH
    Inventors: Ansgar Behler, Horst-Dieter Schares, Almud Folge
  • Compositions based on tocopherols
    Patent number: 6207187
    Abstract: A method for protecting the body against oxidation of low density lipoproteins by the oral administration of a protective amount of a natural tocopherol and tocopherol acetate or tocopherol succinate.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: March 27, 2001
    Assignee: Henkel Corporation
    Inventors: James P. Clark, Manfred S. Dunker