For Removing Stains Caused By Iron, Aluminum, Or Protein Containing Material (e.g., Rust, Aluminum Marks, Blood, Food, Etc.) Patents (Class 510/363)
  • Low-dosage automatic dishwashing detergent with monopersulfate and enzymes
    Patent number: 5559089
    Abstract: Automatic dishwashing detergents are provided in convenient, compact form without chlorine bleaches or phosphate builders. Thus, monopersulfate bleach such as 2KHSO.sub.5.KHSO.sub.4.K.sub.2 SO.sub.4 is used in combination with protease or amylase enzymes and acrylate organic dispersants to provide good cleaning of tableware. Weak builders such as citrate and pH-adjusting agents such as carbonate, bicarbonate and silicate can be present in the composition.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: September 24, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Frederick A. Hartman, Ronald J. Rice, James C. T. R. Burckett-St. Laurent, Lucille F. Taylor, Donna J. Haeggberg
  • Liquid enzyme formulations
    Patent number: 5558812
    Abstract: Liquid enzyme formulations which contain the enzyme in the form of aqueous enzyme particle suspension, colloidal fillers and a liquid alkylene oxide polymer based on ethylenediamine and having a molecular weight in the range from 500 to 8200. The liquid enzyme formulations of the invention may contain any enzyme customarily incorporated in detergents or used for cleaning purposes, especially alkaline proteases. Processes for preparing such liquid enzyme formulations and for using them in liquid detergents and/or cleaners are also disclosed.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: September 24, 1996
    Assignee: Solvay Enzymes GmbH & Co. KG.
    Inventors: Wilfried Hahn, Hubert Herrman, Torsten Kiesser, Vera Sander