Patents by Inventor Barry L. Wagner

Barry L. Wagner 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 production of 1,1-dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane
    Patent number: 4996378
    Abstract: 1,1-Dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane are selectively produced by fluorination of 1,1,1-trichloroethane. Conditions in a first reaction zone selected to preferentially form 1,1-dichloro-1-fluoroethane. The reaction effluent is split between a 1,1-dichloro-1-fluoroethane recovery system, and a second reaction zone. The effluent from the latter is routed to 1-chloro-1,1,-difluoroethane recovery system. The second reaction zone conditions are selected for form 1-chloro-1,1-difluoroethane. The ratio of product formed by the overall process may be varied from up to 98% 1,1-dichloro-1-fluoroethane to greater than 98% 1-chloro-1,1-difluoroethane.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: February 26, 1991
    Assignee: Atochem North America, Inc.
    Inventors: Danny W. Wright, Barry L. Wagner