Patents by Inventor Alfred Blum

Alfred Blum 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).

  • Printable pressure-sensitive adhesive tapes
    Patent number: 4070523
    Abstract: Polyketone resins are used as an ingredient of the release coating for a flexible pressure-sensitive tape. The release coatings are printable and at the same time remain effective as release agents due to the presence of the polyketone resins. The polyketone resins are blended with a monomeric or polymeric release agent and an elastomeric or resinous film former to give the improved properties.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: January 24, 1978
    Assignee: Borden, Inc.
    Inventors: Alfred Blum, Charles Bartell
  • Adhesive tape having printable release coating
    Patent number: 3978274
    Abstract: A pressure-sensitive tape with a printable release coat on the side opposite to the adhesive face, the release coat including a vinyl film former, an acrylic resin and a polyamide plasticizing resin.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: August 31, 1976
    Assignee: Borden, Inc.
    Inventor: Alfred Blum