Patents by Inventor Leonard F. VanderBurgh

Leonard F. VanderBurgh 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).

  • Lower alkyl glycosides to reduce viscosity in aqueous liquid detergents
    Patent number: 4488981
    Abstract: Lower alkyl glycosides are added to aqueous liquid detergents to reduce their viscosity and to prevent phase separation. The glycosides are represented by the formula R--O--(G).sub.n where "R" is a lower alkyl group having 2 to 6 carbon atoms, "O" is an oxygen atom, "G" is a saccharide unit, and "n" is a number from 1 to 10. The glycosides comprise about 1 to 10 weight percent of the detergents.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: December 18, 1984
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Allen D. Urfer, Leonard F. VanderBurgh, Robert S. McDaniel, Jr.
  • Preparation of alkyl glycosides
    Patent number: H619
    Abstract: Medium and long-chain alkyl glycosides are prepared by reacting a saccharide and a monohydric alcohol in the presence of at least 1 mole N-methyl-2-pyrrolidone per mole saccharide unit. The saccharide is selected from the group consisting of unsubstituted saccharides, short-chain alkyl glycosides, and mixtures thereof. The monohydric alcohol is selected from the group consisting of medium-chain alcohols, long-chain alcohols, and mixtures thereof. The reaction is conducted at a temperature of about 80.degree. to 140.degree. C.
    Type: Grant
    Filed: January 25, 1984
    Date of Patent: April 4, 1989
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Robert S. McDaniel, Jr., Leonard F. Vanderburgh, Stephen J. Sommer