Patents by Inventor Irving L. Mador

Irving L. Mador 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).

  • Patent number: 4356337
    Abstract: Benzene or an alkylbenzene is reacted with hydrogen and an alkali metal such as potassium in the presence of a polyamine to produce cyclohexene or alkylcyclohexene and alkali metal hydride. The polyamine contains only C, N and H and has at least three nitrogens. Each nitrogen is linked to three carbons and each carbon bridge is at least two methylenes long. Representative polyamines are hexamethyl hexacyclen, hexamethyl triethylene tetraamine, tris(2-dimethylamino ethyl)amine and octamethyl pentaethylene hexamine. Cyclohexene is produced at high ratios with respect to cyclohexane.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: October 26, 1982
    Assignee: Allied Corporation
    Inventors: Guido P. Pez, Irving L. Mador
  • Patent number: 4326081
    Abstract: Hydrogenation of mononitroaromatic compounds, particularly nitrobenzene, nitrotoluene and their monochloro and monohydroxy ring substitution products, using hydrogen sulfide as reducing agent and a titanium dioxide catalyst at 200.degree.-400.degree. C. and atmospheric pressure.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: April 20, 1982
    Assignee: Allied Corporation
    Inventors: Charles T. Ratcliffe, Stuart L. Soled, Anthony J. Signorelli, Irving L. Mador
  • Patent number: 4131521
    Abstract: A process is described for the electrochemical synthesis of organic carbonates, such as dimethyl carbonate and ethylene carbonate, useful as industrial solvents for polymers and resins, which comprises electrolyzing a liquid medium containing a nonfluoride halide-containing electrolyte and a paraffinic monohydric or 1,2-dihydric alcohol. The non-fluoride halide-containing electrolyte is present in an amount of about 0.01 to 10 weight percent of the alcohol used, and the electrolysis is conducted by passing a direct current through the liquid medium at a temperature below its boiling point and under a carbon monoxide atmosphere at a pressure of about 1 to 350 atmospheres.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: December 26, 1978
    Assignee: Allied Chemical Corporation
    Inventors: Divna Cipris, Irving L. Mador
  • Patent number: 3970697
    Abstract: A process for the selective production of acetic acid from ethylene with co-production in minor amounts of carbon oxides, by reaction of ethylene and oxygen in the presence of water and a catalyst composition contaning a catalytically effective amount of palladium metal and a sulfur modifier.
    Type: Grant
    Filed: July 1, 1974
    Date of Patent: July 20, 1976
    Assignee: National Distillers and Chemical Corporation
    Inventors: John A. Scheben, James A. Hinnenkamp, Irving L. Mador