Patents by Inventor Nigel E. Pickford

Nigel E. Pickford 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).

  • Patent number: 4329395
    Abstract: Heat-bondable laminates of polyester (2) bonded to one surface of a metal (aluminium) foil (3) the other surface of which is bonded to a polyolefin heat-bondable layer (4). Laminates of this type are used to make food containers (1) to replace metal cans which are sterilized at 125.degree. C. The heat-bondable layer used hitherto has been high density polyethylene which has a melting point too close to 125.degree. C. and gives only barely adequate tear strength and impact resistance. The laminates of this invention use instead of the polyethylene, a sequential copolymer of propylene with 12 to 30% by weight ethylene and containers made from them achieve better tear strengths and impact resistances and can be sterilized at temperatures as high as 140.degree. C.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: May 11, 1982
    Assignee: Imperial Chemical Industries Limited
    Inventor: Nigel E. Pickford