Patents by Inventor Billie E. Art

Billie E. Art 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).

  • Distillation of vinylaromatic monomer
    Patent number: 6096941
    Abstract: Process technology is described making possible substantial improvements in the separation and recovery of highly pure vinyl aromatic monomers, notably styrene. A number of design, construction and operational features are made available for selection and use both for new plant facilities and for upgrading existing plant facilities. One major aspect of the invention is reduction in retention or residence times in the distillation towers. In another embodiment, a startup process comprises (i) introducing a feed comprising vinylaromatic monomer, polymerization inhibitor, aromatic hydrocarbon components having boiling points above that of the vinylaromatic monomer to a packed distillation column, said column having a maximum theoretical .DELTA.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: August 1, 2000
    Inventor: Billie E. Art
  • Distillation of vinylaromatic monomer
    Patent number: 5954924
    Abstract: Process technology is described making possible substantial improvements in the separation and recovery of highly pure vinyl aromatic monomers, notably styrene. A number of design, construction and operational features are made available for selection and use both for new plant facilities and for upgrading existing plant facilities. One major aspect of the invention is reduction in retention or residence times in the distillation towers.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: September 21, 1999
    Assignee: Yield Improvement Engineering, Inc.
    Inventor: Billie E. Art