Patents by Inventor Ruddy A. J. Nicasy

Ruddy A. J. Nicasy 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).

  • Bimodal polyethylene composition and articles made therefrom
    Patent number: 9006342
    Abstract: The invention relates to a polyethylene composition with a bimodal molecular weight distribution and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. The composition is characterized as having a bimodal molecular weight distribution, and a ductile-brittle transition temperature, Tdb, of less than ?20° C. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: April 14, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Jozef J. Van Dun, Patrick J. C. Schouterden, Kalyan Sehanobish, Peter F. van den Berghen, Noorallah Jivraj, Johan Vanvoorden, Ruddy A. J. Nicasy, Ravindra S. Dixit, Frederik E. Gemoets
  • Multistage process for producing ethylene polymer compositions
    Patent number: 8916649
    Abstract: The present invention relates to a process of producing an ethylene polymer composition in multiple stages, of which the first stage is preferably a slurry polymerization stage, in the presence of a catalyst system, comprising: a) a solid catalyst precursor, comprising a transition metal selected from titanium and vanadium; magnesium; a halide, optionally an electron donor; and a solid particulate material comprising an inorganic oxide, and wherein the median particle diameter, D50, of the solid catalyst precursor, based upon the total volume of solid catalyst precursor, is from 1 to 13 micrometers; and b) an organoaluminium compound.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: December 23, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Patrick J. C. Schouterden, Ruddy A. J. Nicasy, Sarat Munjal, Robert J. Jorgesen, Burkhard E. Wagner
  • Bimodal polyethylene composition and articles made therefrom
    Patent number: 8338538
    Abstract: The invention relates to a polyethylene composition with a bimodal molecular weight distribution and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. The composition is characterized as having a bimodal molecular weight distribution, and a ductile-brittle transition temperature, Tdb, of less than ?20° C. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: December 25, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Jozef J. Van Dun, Patrick J. C. Schouterden, Kalyan Sehanobish, Peter F. van den Berghen, Noorallah Jivraj, Johan Vanvoorden, Ruddy A. J. Nicasy, Ravindra S. Dixit, Frederick E. Gemoets
  • Bimodal polyethylene composition and articles made therefrom
    Patent number: 7825190
    Abstract: The invention relates to a polyethylene composition with a bimodal molecular weight distribution and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. The composition is characterized as having a bimodal molecular weight distribution, and a ductile-brittle transition temperature, Tdb, of less than ?20° C. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: November 2, 2010
    Assignee: Dow Global Technologies
    Inventors: Jozef J. Van Dun, Patrick J. C. Schouterden, Kalyan Sehanobish, Peter F. van den Berghen, Noorallah Jivraj, Johan Vanvoorden, Ruddy A. J. Nicasy, Ravi S. Dixit, Frederik E. Gemoets
  • Bimodal polyethylene composition and articles made therefrom
    Patent number: 7345113
    Abstract: The invention relates to a polyethylene composition with a bimodal molecular weight distribution, methods for making the same, and articles made therefrom, such as high topload blow moldings and transmission and distribution pipes. The composition comprises a low-molecular-weight (LMW) ethylene homopolymer component and a homogeneous, high-molecular-weight (HMW) ethylene interpolymer component, wherein the LMW component is characterized as having a molecular weight distribution, MWDL, of less than about 8. In some embodiments, the HMW component is characterized by a reverse comonomer distribution.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: March 18, 2008
    Assignee: Dow Global Technologies Inc.
    Inventors: Jozef J. Van Dun, Patrick J. C. Schouterden, Kalyan Sehanobish, Peter F. van den Berghen, Noorallah Jivraj, Johan Vanvoorden, Ruddy A. J. Nicasy, Ravi S. Dixit, Frederik E. Gemoets