Patents by Inventor Terence I. Worbey

Terence I. Worbey 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).

  • Films of thermoplastics materials having roughened surfaces
    Patent number: 4242396
    Abstract: Thermoplastics films suitable for use as drafting materials comprise a filled film or a film composite having a filled layer, the fillers having a nominal particle size in the range 4 to 15 .mu.m and providing a roughened surface, and a matt layer adherent to the roughened surface comprising a binding resin and secondary filler particles having a nominal particle size in the range 1 to 15 .mu.m in an amount 10 to 100% by weight and having a coat weight of 0.05 to 2.0 g/m.sup.2. Also relates to a process for producing the films.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: December 30, 1980
    Assignee: Imperial Chemical Industries Limited
    Inventors: John R. Wilson, Terence I. Worbey