Patents by Inventor Shih-Ruey Thomas Chen

Shih-Ruey Thomas Chen 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).

  • Dispersing agents and their use
    Publication number: 20020144797
    Abstract: A method of dispersing a solid particulate material in an aqueous medium by addition to the aqueous medium of a dispersing agent wherein the solid particulate material is to be used as a filler or pigment in a sheet material which is required to come into contact with foodstuffs, wherein the dispersing agent is a composition comprising:
    Type: Application
    Filed: November 13, 2001
    Publication date: October 10, 2002
    Applicant: ECC INTERNATIONAL, LTD.
    Inventors: David Robert Skuse, Shih-Ruey Thomas Chen, William Leonard Garforth, Gary F. Matz
  • Dispersing agents and their use
    Patent number: 6315867
    Abstract: A method of dispersing a solid particulate material in an aqueous medium by addition to the aqueous medium of a dispersing agent wherein the solid particulate material is to be used as a filler or pigment in a sheet material which is required to come into contact with foodstuffs, wherein the dispersing agent is a composition comprising: (1) up to 0.25% by weight, based on the dry weight of the particulate solid material, of a water-soluble salt of a poly(acrylic acid) having a weight average molecular weight not greater than 20,000, and (2) from 0.02% to 1.5% by weight, based on the dry weight of the particulate solid material, of either (a) an anionic polyelectrolyte which comprises a water-soluble salt of a copolymer of acrylic acid with acrylamide; or (b) a water-soluble condensed phosphate salt.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: November 13, 2001
    Assignee: Imerys Minerals Limited
    Inventors: David Robert Skuse, Shih-Ruey Thomas Chen, William Leonard Garforth, Gary F Matz
  • Mannich derivatives of epoxy-novolac resins and methods of using the same
    Patent number: 6248182
    Abstract: Compositions and methods for treating substrates are disclosed. The compositions are generally described as epoxy-novolac resins containing a Mannich derivatized bisphenol side chain. The methods, which comprise contacting the surface to be treated with these compositions, improve the corrosion resistance and/or adhesion properties of the treated surface.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: June 19, 2001
    Assignee: Calgon Corporation
    Inventors: Hong Ding, Shih-Ruey Thomas Chen, Yi Jin Warburton
  • Method for treatment of metal substrates using Mannich-derived polyethers
    Patent number: 5972433
    Abstract: Methods for treating metal substrates are disclosed. These methods, which comprise contacting the surface to be treated with a composition comprising a Mannich-derivatized polyether, improve the corrosion resistance and/or adhesion properties of the treated surface. Similar methods for treating polymeric substrates are disclosed.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: October 26, 1999
    Assignee: Calgon Corporation
    Inventors: Shih-Ruey Thomas Chen, Yi Jin Warburton, Hong Ding