Patents by Inventor Philip A. Bernstein

Philip A. Bernstein 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).

  • Grafted polymeric material and process for preparing
    Patent number: 4131637
    Abstract: A process for preparing a polymeric material grafted throughout its bulk is provided. A polymer having finely divided particles is blended with silica and maintained in a fluidized bed. The polymer is activated by passing ozone uniformly through the blend to initiate incipient labile sites in the molecular structure of the polymer. The polymer is then reacted with an ethylenically unsaturated ionogenic monomer to graft polymerize the monomer onto the polymer. The grafted polymer may then be converted to a salt form by reacting with alkaline compounds. The resultant powders can be fused into any desired shape by conventional polymer plastic processes.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: December 26, 1978
    Assignee: ESB Incorporated
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker
  • Material for an alkaline cell separator and a process of making
    Patent number: 4122133
    Abstract: A material useful as a separator in batteries and a process for making the material is provided. This material is a polyolefin having grafted to it side chains derived from an ethylenically unsaturated ionogenic monomer and cross-linked with sulfur.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: October 24, 1978
    Assignee: ESB Incorporated
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker
  • Atactic polypropylene tape
    Patent number: 4088628
    Abstract: A tape comprised of an atactic polypropylene and a non-conductive filler is described. This tape is useful in a process which enables a secondary battery having a defective seal to be repaired safely while remaining in operation.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: May 9, 1978
    Assignee: ESB Incorporated
    Inventors: Philip Bernstein, James P. Coffey
  • Process for repairing defective battery seals
    Patent number: 4071661
    Abstract: A process is described for repairing secondary batteries which have defective seals. The process of repair can be performed safely while the battery is in operation.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: January 31, 1978
    Assignee: ESB Incorporated
    Inventors: Philip Bernstein, James P. Coffey, Stanley M. Davis
  • Perfluoro compound-soil resistant epoxy resin compositions
    Patent number: 3937750
    Abstract: Perfluoro compound-epoxy resin compositions manifesting oil and soil resistance said compositions comprising an epoxy resin and a block copolymer of the type [ABA].sub.n wherein A is a perfluoro group having from 8 to 10 carbon atoms, B is a low molecular weight functionality reactive with the epoxy resin and n is from 1 to about 5.
    Type: Grant
    Filed: December 12, 1973
    Date of Patent: February 10, 1976
    Assignee: ESB Incorporated
    Inventors: Philip Bernstein, John P. Stirpe