Patents by Inventor Paul Hamley

Paul Hamley 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
  • Preparation of lactams
    Publication number: 20060161000
    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: Application
    Filed: December 21, 2005
    Publication date: July 20, 2006
    Applicant: INVISTA NORTH AMERICAL S.A.R.L.
    Inventors: Martyn Poliakoff, Paul Hamley, Chong Yan, Eduardo Cepeda, Graham Aird, Alexander Coote, Ian Pearson, William Thomas