Patents by Inventor Carl D. Chandler, Jr.

Carl D. Chandler, Jr. 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).

  • Removal and destruction of residual nitrate esters in wastewater
    Patent number: 4415456
    Abstract: A process that captures and destroys organic nitrate esters carried in wastewater effluents which comprises capturing the nitrate esters with a solid adsorbent and then displacing them from the adsorbent with an aqueous regenerating solution that also causes their decomposition and regenerates the adsorbent.
    Type: Grant
    Filed: March 24, 1982
    Date of Patent: November 15, 1983
    Assignee: Hercules Incorporated
    Inventor: Carl D. Chandler, Jr.
  • Process for purification of nitrocellulose
    Patent number: 4323669
    Abstract: A process for purification of nitrocellulose containing residual acid from nitration is provided. In this process the nitrocellulose is cut in the presence of water to form an aqueous slurry of cut nitrocellulose fibers. The pH of the slurry is adjusted to a value of at least about 8 and the slurry is heated under pressure. The pH of the slurry is maintained above 8 during heating by addition of basic solution to the slurry. When the residual acid in the slurry is substantially completely neutralized, the fibers are separated from the slurry. The purified nitrocellulose is of reduced viscosity and satisfactory stability.
    Type: Grant
    Filed: July 23, 1980
    Date of Patent: April 6, 1982
    Assignee: Hercules Incorporated
    Inventors: William T. Bolleter, Carl D. Chandler, Jr.