Patents by Inventor Alasdair I. Thomson

Alasdair I. Thomson 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).

  • Catalytic selective hydrogenation of aliphatic unsaturation in copolymers
    Patent number: 4501685
    Abstract: A catalyst system and process for the selective hydrogenation of aliphatic unsaturation in copolymers containing aromatic groups for example styrene-butadiene copolyers, the catalyst system comprising palladium supported on non-porous carbon black poisoned by a Lewis base containing nitrogen, phosphorus or sulphur moiety.
    Type: Grant
    Filed: September 8, 1983
    Date of Patent: February 26, 1985
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Alasdair I. Thomson, Frank King