Patents by Inventor Andrew Alec Clifton

Andrew Alec Clifton 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: 7102660
    Abstract: An article for receiving an image by thermal transfer printing includes an image-receiving surface of plastics material coated with a layer of dye-receptive material capable of accepting an image by means of a dye thermal transfer process, wherein the glass transition temperature (Tg) of the dye receptive material is at least 50° C. lower than the softening point of the plastics material of the image-receiving surface. By having a difference between the softening point of the plastics material article surface and the Tg of the material coated thereon of at least 50° C. it is possible to achieve printing in a single step transfer process of high density images without distortion of the plastics material. The invention can be used with three-dimensional articles possibly having compound curves, including casings for mobile telephones made of polymers such as polycarbonate.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: September 5, 2006
    Assignee: Imperial Chemical Industries PLC
    Inventors: Andrew Alec Clifton, Jeffrey Michael Howell
  • Publication number: 20040165055
    Abstract: An article for receiving an image by thermal transfer printing includes an image-receiving surface of plastics material coated with a layer of dye-receptive material capable of accepting an image by means of a dye thermal transfer process, wherein the glass transition temperature (Tg) of the dye receptive material is at least 50° C. lower than the softening point of the plastics material of the image-receiving surface. By having a difference between the softening point of the plastics material article surface and the Tg of the material coated thereon of at least 50° C. it is possible to achieve printing in a single step transfer process of high density images without distortion of the plastics material. The invention can be used with three-dimensional articles possibly having compound curves, including casings for mobile telephones made of polymers such as polycarbonate.
    Type: Application
    Filed: November 25, 2003
    Publication date: August 26, 2004
    Inventors: Andrew Alec Clifton, Jeffrey Michael Howell