Patents by Inventor John N. Rapko

John N. Rapko 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).

  • Alkylaryl sulfonate compositions
    Patent number: 4687593
    Abstract: Alkylarylsulfonate compositions containing low 2-phenyl alkylbenzene sulfonates and alkylated diphenyl oxide sulfonates are provided. The compositions have improved solubility and detergency properties and are useful in aqueous base detergent formulations. Also provided are intermediate compositions suitable for cosulfonation and neutralization.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: August 18, 1987
    Assignee: Monsanto Company
    Inventors: Michael J. Dolan, John N. Rapko, William W. Morgenthaler
  • Alkylaryl sulfonate compositions
    Patent number: 4645623
    Abstract: Alkylarylsulfonate compositions containing low 2-phenyl alkylbenzene sulfonates and alkylated diphenyl oxide sulfonates are provided. The compositions have improved solubility and detergency properties and are useful in aqueous base detergent formulations. Also provided are intermediate compositions suitable for cosulfonation and neutralization.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: February 24, 1987
    Assignee: Monsanto Company
    Inventors: Michael J. Dolan, John N. Rapko, William W. Morgenthaler
  • Phosphate-carboxylate compounds
    Patent number: 4150069
    Abstract: Compounds of the following formula: ##STR1## wherein R is selected from the group consisting of hydrogen and an alkyl group containing from 1 to 4 carbon atoms,R' is selected from the group consisting of --OB and halogen,B is alkali metal, ammonium or trialkanolammonium, andM is selected from B or alkyl having up to 20 carbon atoms,Are provided. The salts are useful as detergent builders, and the esters are useful intermediates to make the salts.
    Type: Grant
    Filed: December 16, 1977
    Date of Patent: April 17, 1979
    Assignee: Monsanto Company
    Inventors: Marvin M. Crutchfield, John N. Rapko
  • N-Acetyl diglycolimide, and its use as a bleach activator
    Patent number: 4147654
    Abstract: The novel compound: ##STR1## is disclosed, together with its use as an activator for hydrogen peroxide bleaches, or bleaches which yield hydrogen peroxide. Activation proceeds quickly at relatively low temperatures. Activator, bleach and washing compounds can all be used together.
    Type: Grant
    Filed: May 8, 1978
    Date of Patent: April 3, 1979
    Assignee: Monsanto Company
    Inventor: John N. Rapko
  • N-acetyl diglycolimide
    Patent number: 4118568
    Abstract: The novel compound: ##STR1## is disclosed, together with its use as an activator for hydrogen peroxide bleaches, or bleaches which yield hydrogen peroxide. Activation proceeds quickly at relatively low temperatures. Activator, bleach and washing compounds can all be used together.
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: October 3, 1978
    Assignee: Monsanto Company
    Inventor: John N. Rapko