Patents by Inventor Alexander Stuart Coote

Alexander Stuart Coote 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).

  • Preparation of lactams
    Patent number: 7238804
    Abstract: A process for the manufacture of a lactam from an amino alkane nitrile and/or its hydrolysis derivatives, comprising reacting a solution comprising at least about 5% by weight amino alkane nitrile in water at a temperature of greater than or equal to about 350° C. and at a pressure of greater than about 250 bar. Optionally, a dilute acid may be added as a catalyst.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: July 3, 2007
    Assignee: Invista North America S. AR. L.
    Inventors: Martyn Poliakoff, Paul Hamley, Chong Yan, Eduardo Garcia-Verdugo Cepeda, Graham Robert Aird, Alexander Stuart Coote, Ian Pearson, William Barry Thomas
  • Process for the manufacture of polyester via hydrogenation treatment of recycled diol
    Patent number: 7129316
    Abstract: An improved process for recycling unspent diol removed from a polyester manufacturing process wherein the diol is captured, hydrogenated, and recycled so that the final polyester product has improved color over polyesters produced using other recycled diols.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: October 31, 2006
    Assignee: Invista North America S.A R.L.
    Inventors: Finbar Gerald McDonnell, Clive Alexander Hamilton, Alexander Stuart Coote