Patents by Inventor Jerauld L. Dickerson

Jerauld L. Dickerson 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).

  • Process for separating polyamide from colorant
    Patent number: 6036726
    Abstract: A process for recycling colored polyamide material comprises the steps of (a) contacting solid colored polyamide material with an organic solvent composition at a temperature effective to dissolve the polyamide, thereby forming a solution containing colorant and dissolved polyamide; and (b) separating colorant from the polyamide. The process can optionally further comprise the step of recovering the colorant, recovering the polyamide, or recovering both the polymer and colorant. The organic solvent composition preferably is selected from the group consisting of aliphatic and aromatic ketones, aliphatic and aromatic alcohols, diols, water, and combinations thereof. Solvent compositions comprising at least one alcohol selected from the group consisting of butanediol, butanol, ethanol, and benzyl alcohol are preferred, such as aqueous solutions of 1-butanol or ethanol.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: March 14, 2000
    Assignee: Solutia Inc.
    Inventors: Yiqi Yang, Le Moyne W. Plischke, George R. McLellan, Jerauld L. Dickerson
  • Thermoplastic composition and method for producing thermoplastic composition by melt blending carpet
    Patent number: 5591802
    Abstract: The present invention is directed to a process for forming a thermoplastic composition from carpet wherein a carpet sample are melt blended without separating the carpet into its component parts. The process of the present invention produces a thermoplastic composition useful as a substitute for virgin thermoplastics in a variety of applications.
    Type: Grant
    Filed: August 7, 1995
    Date of Patent: January 7, 1997
    Inventors: Donald J. David, Jerauld L. Dickerson, Thomas F. Sincock
  • Thermoplastic composition and method for producing thermoplastic composition by melt blending carpet
    Patent number: 5498667
    Abstract: The present invention is directed to a process for forming a thermoplastic composition from carpet wherein a carpet sample are melt blended without separating the carpet into its component parts. The process of the present invention produces a thermoplastic composition useful as a substitute for virgin thermoplastics in a variety of applications.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: March 12, 1996
    Assignee: Monsanto Company
    Inventors: Donald J. David, Jerauld L. Dickerson, Thomas F. Sincock, Susan R. Williams
  • Thermoplastic composition and method for producing thermoplastic composition by melt blending carpet
    Patent number: 5294384
    Abstract: The present invention is directed to a process for forming a thermoplastic composition from carpet wherein a carpet sample are melt blended without separating the carpet into its component parts. The process of the present invention produces a thermoplastic composition useful as a substitute for virgin thermoplastics in a variety of applications.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: March 15, 1994
    Assignee: Monsanto Company
    Inventors: Donald J. David, Jerauld L. Dickerson, Thomas F. Sincock