Patents by Inventor Joseph Metrick

Joseph Metrick 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).

  • Piperidinyl phosphite compositions and polyolefin compositions containing them
    Patent number: 5607989
    Abstract: Disclosed is a piperidinyl phosphite composition consisting of a piperidinyl phosphite compound and an additive having a melting point of greater than 155.degree. C. selected from the group consisting of (i) sorbitol compounds, (ii) phosphite compounds and (iii) sterically hindered phenolic compounds, and polyolefin compositions containing them.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: March 4, 1997
    Assignee: Montell North America Inc.
    Inventors: Clyde E. Bishop, Vu A. Dang, Joseph Metrick
  • Clarifying compositions, process for making and polyolefin compositions containing them
    Patent number: 5468792
    Abstract: Disclosed is a clarifying composition mainly containing a phosphonite stabilizer composition, the main component of which is tetrakis-(2,4-di-tert-butylphenyl)-4,4-biphenylene diphosphite, with certain sorbitol based compounds having a melting point of greater than 200.degree. C., a process for preparing the clarifying compositions and polyolefin compositions containing the clarifying composition.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: November 21, 1995
    Assignee: Montell North America Inc.
    Inventors: Joseph Metrick, Jeffrey D. Abata