Patents by Inventor Riaz Choudhery

Riaz Choudhery 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).

  • WATER REPELLENT COMPOSITIONS
    Publication number: 20230227660
    Abstract: A method of increasing water repellency of an organic porous substrate, such as wood, is provided. The method comprises applying a dispersion of inorganic nanoparticles in a liquid carrier onto a surface of the substrate. The liquid carrier is selected to evaporate substantially entirely at room temperature. For example, the liquid carrier may be selected so that at least 95% of the liquid carrier will evaporate at room temperature, preferably in a 24 hour period following application to the substrate surface.
    Type: Application
    Filed: July 26, 2021
    Publication date: July 20, 2023
    Inventors: Yingqian XU, Mike ATTFIELD, Riaz CHOUDHERY
  • Coating process and product
    Patent number: 5314751
    Abstract: A process for forming a coating on a surface of a substrate which comprises;(i) applying a layer of a composition comprising a polymer phase, in which the polymer phase comprises a crystallisable polymer selected from polyesters, polyamides, and polycarbonates, in intimate admixture with a non-curable solvent for the crystallisable polymer, and,(ii) heating the applied layer to a temperature at least high enough to cause film formation.
    Type: Grant
    Filed: July 13, 1993
    Date of Patent: May 24, 1994
    Assignee: Imperial Chemical Industries PLC
    Inventors: Eric Nield, Riaz Ahmed, Riaz A. Choudhery
  • Curable composition comprising a crystallisable polymer
    Patent number: 5258471
    Abstract: A composition comprising a polymer in dispersion in a non-aqueous continuous diluent, in which the polymer phase comprises a crystallisable polymer, selected from polyesters, polycarbonates and polyamides, a curable solvent for the crystallisable polymer which is miscible with the continuous diluent, and optionally, an auxiliary solvent, and in which the curable solvent is at least partially reacted with the crystallisable polymer, so as to form a stabiliser for the dispersion.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: November 2, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Eric Nield, Riaz A. Choudhery
  • Curable composition comprising a crystallisable polymer
    Patent number: 5242994
    Abstract: a composition comprising a polymer phase in dispersion in a non-aqueous continuous diluent in which the polymer phase comprises a crystallizable polymer, selected from polyesters, polyamides and polycarbonates, in intimate admixture with a curable solvent for the crystallizable polymer, a stabilizer and, optionally, an auxiliary solvent.
    Type: Grant
    Filed: June 5, 1991
    Date of Patent: September 7, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Eric Nield, Riaz Ahmed, Riaz Choudhery