Patents Examined by Irwin Cluck
  • Prevention of water staining of aluminum
    Patent number: 4153464
    Abstract: This invention relates to useful protective compositions and a method for protecting aluminum and aluminum alloy products against water staining. The method involves applying a continuous film of a protective composition to the surface of the aluminum product. The protective compositions useful for the invention are blends or reaction products of a polybasic acid and a partial ester of a polyol.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: May 8, 1979
    Assignees: Emery Industries, Inc., Reynolds Metals Company
    Inventors: Robert J. Sturwold, Walter E. Utz, Nicholas Christ, William R. Ford, Jr., George P. Koch
  • Process for the preparation of uniform, stable diacyl peroxide composition
    Patent number: 4151106
    Abstract: A process for the preparation of uniform, stable diacyl peroxide compositions is disclosed. The process comprises reacting the corresponding acyl chloride with hydrogen peroxide in an alkaline aqueous medium in the presence of a desensitizing agent.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: April 24, 1979
    Assignee: Akzona Incorporated
    Inventor: Guenter Meenen