Patents by Inventor David A. Jarus

David A. Jarus 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).

  • Weatherable polyolefin nanocomposites
    Patent number: 8153710
    Abstract: A method is disclosed concerning discovering how the use of an additive in a polyolefin compound affects the weatherability of that compound, Applying that technique, a weatherable polyolefin nanocomposite is disclosed, which contains UV stabilizers that filter wavelengths in a range influenced by presence of organoclay in the nanocomposite.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 10, 2012
    Assignees: Polyone Corporation, Amcol International Corporation
    Inventors: David A. Jarus, Guoqiang Qian
  • Polyamide compounds containing zinc sulfide
    Patent number: 7902283
    Abstract: A thermally conductive polyamide compound is disclosed. The compound comprises a polyamide matrix and zinc sulfide dispersed in the matrix. Optionally, reinforcing filler or a second polymer or both is present. Optionally, thermal carbon black or the combination of thermal carbon black and colorant is present. The compound can be extruded or molded into a heat dissipating article.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: March 8, 2011
    Assignee: PolyOne Corporation
    Inventors: Roger W. Avakian, Grant Barber, David A. Jarus
  • Stabilized polyolefin nanocomposites
    Patent number: 7858686
    Abstract: A heat stabilized polyolefin nanocomposite is disclosed, which contains metal scavengers to heat stabilize the nanocomposite.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: December 28, 2010
    Assignees: PolyOne Corporation, AMCOL International Corporation
    Inventors: David A. Jarus, Guoqiang Qian, Roger W. Avakian
  • Nucleated polypropylene nanocomposites
    Patent number: 7763675
    Abstract: nuc-PP nanocomposite is made from the mixing of nuc-PP with olefin elastomer and organoclay, and optionally, a dispersion agent. Unexpectedly, processing properties such as higher melt flow, and performance properties such as higher toughness and higher stiffness, are obtained when compared with commercially available PP nanocomposite.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: July 27, 2010
    Assignees: Polyone Corporation, AMCOL International Corporation
    Inventors: David A. Jarus, Guoqiang Qian
  • WEATHERABLE POLYOLEFIN NANOCOMPOSITES
    Publication number: 20090303463
    Abstract: A method is disclosed concerning discovering how the use of an additive in a polyolefin compound affects the weatherability of that compound. Applying that technique, a weatherable polyolefin nanocomposite is disclosed, which contains UV stabilizers that filter wavelengths in a range influenced by presence of organoclay in the nanocomposite.
    Type: Application
    Filed: March 27, 2007
    Publication date: December 10, 2009
    Applicants: POLYONE CORPORATION, AMCOL INTERNATIONAL CORPORATION
    Inventors: David A. Jarus, Guoqiang Qian
  • NANOCOMPOSITES COMPLIANT WITH REGULATORY REQUIREMENTS
    Publication number: 20090292055
    Abstract: A nanocomposite is made from melt-mixing of polyethylene with organoclay in the presence of a maleated polypropylene. Unexpectedly, the maleated polypropylene and polyethylene are sufficiently compatible to permit excellent dispersion of the organoclay in the nanocomposite. Because maleated polypropylene is compliant with U.S. Food and Drug Administration regulations, though maleated polyethylene is not, one can use nanocomposites of the present invention for articles to be in contact with human food.
    Type: Application
    Filed: March 27, 2007
    Publication date: November 26, 2009
    Applicants: POLYONE CORPORATION, AMCOL INTERNATIONAL CORPORATION
    Inventors: David A. Jarus, Guoqiang Qian
  • NUCLEATED POLYPROPYLENE NANOCOMPOSITES
    Publication number: 20090117393
    Abstract: nuc-PP nanocomposite is made from the mixing of nuc-PP with olefin elastomer and organoclay, and optionally, a dispersion agent. Unexpectedly, processing properties such as higher melt flow, and performance properties such as higher toughness and higher stiffness, are obtained when compared with commercially available PP nanocomposite.
    Type: Application
    Filed: March 5, 2007
    Publication date: May 7, 2009
    Applicants: POLYONE CORPORATION, AMCOL INTERNATIONAL CORPORATION
    Inventors: David A. Jarus, Guoqiang Qian