Patents by Inventor Jonathan S. Leake

Jonathan S. Leake 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).

  • Aminotriazine phosphonates in plastics
    Patent number: 5534573
    Abstract: Triazine compounds useful as flame retardants have the formula: ##STR1## where Am represents an amino group, Pp represents a phosphonate group and Z represents an amino group or a phosphonate group, or are polymers comprising repeating units of the formula: ##STR2## where ##STR3## is a diamine residue. The triazine compounds are used as flame retardants in plastics materials, particularly polyurethane foam or artificial fibres, or in intumescent fire protection compositions.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: July 9, 1996
    Assignee: Courtaulds PLC
    Inventor: Jonathan S. Leake