Patents by Inventor Stanley E. Holbrook

Stanley E. Holbrook 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).

  • Method for preparing a film of vinylidene chloride polymer
    Patent number: 4379117
    Abstract: A film combination including two plies of tack-free thermoplastic polymer and a hot-tacky vinylidene chloride crystalline polymer is prepared by coextruding the vinylidene chloride polymer outside melts of plies of the thermoplastic polymer.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: April 5, 1983
    Assignee: W. R. Grace & Co.
    Inventors: William G. Baird, Jr., Stanley E. Holbrook, Jeremy A. Platt
  • Method for preparing a film of vinylidene chloride polymer
    Patent number: 4112181
    Abstract: A saran laminate film is produced by coextruding saran between outer plys of thermoplastic material.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: September 5, 1978
    Assignee: W. R. Grace & Co.
    Inventors: William G. Baird, Jr., Stanley E. Holbrook, Jeremy A. Platt, deceased
  • Method for preparing a film of vinylidene chloride polymer
    Patent number: 4048428
    Abstract: A film combination including two plies of thermoplastic polymer and therebetween a vinylidene chloride crystalline copolymer film which is substantially devoid of pinholes and scratches and has low oxygen permeability is prepared by coextruding the copolymer as a melt between melts of outer plies of thermoplastic polymer. The film combination may be biaxially oriented or substantially unoriented and may be irradiated with high energy electrons. The film combination can be used for many packaging applications.
    Type: Grant
    Filed: April 15, 1974
    Date of Patent: September 13, 1977
    Assignee: W. R. Grace & Co.
    Inventors: William G. Baird, Jr., Stanley E. Holbrook, Jeremy A. Platt