Patents by Inventor Joseph E. Milam

Joseph E. Milam 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).

  • Method for producing 1,2,4-trichlorobenzene
    Patent number: 4835327
    Abstract: 1,2,4-Trichlorobenzene is produced by chlorinating benzene, chlorobenzene, meta-dichlorobenzene, ortho-dichlorobenzene, or a mixture of two or more thereof in a reaction medium comprising a liquid phase and a catalytic amount of zeolite L, zeolite Y, or a mixture thereof.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: May 30, 1989
    Assignee: PPG Industries, Inc.
    Inventors: Joseph E. Milam, William E. Wimer
  • Production of dichlorobenzene
    Patent number: 4235825
    Abstract: Dichlorobenzene having a higher ratio of para isomer to ortho isomer is produced by the liquid phase chlorination of benzene or monochlorobenzene in the presence of a two-component catalyst consisting of a metal halide, e.g., ferric chloride, and diethylether.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: November 25, 1980
    Assignee: PPG Industries, Inc.
    Inventor: Joseph E. Milam
  • Separation of dichlorobenzene isomers
    Patent number: 4089909
    Abstract: Metadichlorobenzene is removed from mixed dichlorobenzene isomers by a liquid phase Friedel-Crafts catalyst assisted chlorination in the absence of benzene or monochlorobenzene.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: May 16, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Joseph E. Milam, Warren E. Dean, Robert K. Gerdes
  • Liquid phase chlorination of aromatic hydrocarbons using manganese chloride catalyst
    Patent number: 4017551
    Abstract: A process for the liquid phase nuclear chlorination of benzenes which uses a novel manganese chloride catalyst in an iron-free reaction environment. The manganese chloride catalyst provides a dichlorobenzene product having a higher ratio of orthodichlorobenzene to paradichlorobenzene than is obtained with conventional commercial liquid phase chlorination catalysts.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: April 12, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Joseph E. Milam, Gordon A. Carlson