Patents by Inventor Jon Schweinle

Jon Schweinle 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 and apparatus for producing hips using continuous polybutadiene feed
    Patent number: 6143833
    Abstract: A method and apparatus for use in making high impact polystyrene by polymerizing butadiene into polybutadiene, continuously exchanging styrene monomer for the solvent used to produce the polybutadiene, and polymerizing the resultant polybutadiene/styrene solution into high impact polystyrene. Apparatus is disclosed that includes butadiene and solvent preparation means, additive metering means, butadiene polymerization means, solvent exchange means, solvent recovery means and styrene polymerization means.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: November 7, 2000
    Assignee: Fina Technology, Inc.
    Inventors: Brad Klussmann, Jon Schweinle, Doug Berti, Thanh Nguyen, Jose Sosa