Patents by Inventor James Graham Bonner

James Graham Bonner 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).

  • Polymer blends
    Patent number: 5859129
    Abstract: A polymer blend comprises a polyketone and a high density polyethylene (HDPE) optionally grafted with at least one polymerisable ethylenically unsaturated carboxylic acid or derivative thereof. Such blends have good barrier properties and are suitable for packaging applications.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: January 12, 1999
    Assignee: BP Chemicals Limited
    Inventor: James Graham Bonner
  • Polymer blends
    Patent number: 5859138
    Abstract: A polymer blend comprised of a polyketone and linear low density polyethylene (LLDPE). The blend is suitable for use with foodstuffs and liquid hydrocarbons. In a preferred form of the invention, the polyketone has an alternating structure of (a) units derived from carbon monoxide and (b) units derived from one or more olefinically unsaturated compounds.
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: January 12, 1999
    Assignee: BP Chemicals Limited
    Inventors: James Graham Bonner, Anthony Keith Powell
  • Food packaging comprising polyketone/PVC blend
    Patent number: 5792530
    Abstract: Food packaging comprises a blend of polyketone and PVC. The blends show good oxygen barrier properties without serious deterioration of moisture barrier performance. Terpolymers of ethylene, propylene and CO are preferred. PVC having a K-value of 50 to 80 are preferred.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: August 11, 1998
    Assignee: BP Chemicals Limited
    Inventors: James Graham Bonner, Anthony Keith Powell