Patents by Inventor Grant T. Shouldice

Grant T. Shouldice 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).

  • Solvent-based flexible packaging ink composition for high temperature and pressure
    Patent number: 9873805
    Abstract: A solvent-soluble flexographic retort ink particularly suitable for use in laminating packaging applications. The inks maintain lamination bond strength after being subjected to retort conditions.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: January 23, 2018
    Assignee: Flint Group North America Corporation
    Inventors: Rurou Mai, Philip David Ernest, Grant T. Shouldice, Paolo Talamelli
  • SOLVENT-BASED FLEXIBLE PACKAGING INK COMPOSITION FOR HIGH TEMPERATURE AND PRESSURE
    Publication number: 20160362569
    Abstract: A solvent-soluble flexographic retort ink particularly suitable for use in laminating packaging applications. The inks maintain lamination bond strength after being subjected to retort conditions.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 15, 2016
    Applicant: Flint Group North America Corporation
    Inventors: Rurou Mai, Philip David Ernest, Grant T. Shouldice, Paolo Talamelli
  • Water soluble amphiphilic heteratom star polymers and their use as emulsion stabilizers in emulsion polymerization
    Patent number: 6150468
    Abstract: The present invention is directed to amphiphilic star polymers and their use as emulsion stabilizers in emulsion polymerization.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: November 21, 2000
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Jules E. Schoenberg, Robert D. Harlan, Grant T. Shouldice, Paul M. Petersen
  • Use of derivatives of polyamino acids as emulsifiers stabilizers in aqueous free radical emulsion polymerization
    Patent number: 6143817
    Abstract: This invention relates to a stabilized aqueous emulsion polymerization composition comprising (a) from about 10% to about 80% by weight of a polymer derived from an emulsion polymerizable ethylenically unsaturated monomer; (b) from about 0.1% to about 10% by weight of a polyamino acid heteropolymer; (c) from about 0.01% to about 1% by weight of a free radical polymerization initiating agent; and (d) the remainder water. The polyamino acid heteropolymer in (b) may be selected from the group consisting of polyaspartic acid heteropolymers, polyglutamic acid heteropolymers, copolymers of polyaspartic acid heteropolymers with polyglutamic acid heteropolymers, and mixtures thereof. The present invention also pertains to a method for emulsifying and stabilizing an aqueous free radical emulsion polymerization reaction employing the polyamino acid heteropolymers.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: November 7, 2000
    Assignee: National Starch & Chemical Co.
    Inventors: Malcolm Hallam, Grant T. Shouldice, Jacob J. Guth