Patents by Inventor Brian Gratton

Brian Gratton 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).

  • Pressure-sensitive adhesive tape substrate
    Patent number: 3993826
    Abstract: A pressure-sensitive adhesive tape substrate consisting of polyolefinic film (such as polypropylene, polyethylene or more especially an ethylene propylene copolymer) contains a thermoplastic elastomer, usually in an amount below 30 parts by weight per hundred parts of polyolefine and, for example, polyisobutylene or styrene butadiene block copolymer, in order to impart increased splitting resistance in a transverse direction.
    Type: Grant
    Filed: January 14, 1975
    Date of Patent: November 23, 1976
    Assignee: Adhesive Tapes Limited
    Inventors: Geoffrey Langford Butler, Brian Gratton