Patents by Inventor Ronald R. Andrea

Ronald R. Andrea 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).

  • Catalyst component for the (CO)polymerization of olefins
    Patent number: 7223712
    Abstract: An internal electron-donor compound selected from the 1,3-diethers of formula (I) in which R is a C1–C10 alkyl group, R1 is a linear or branched primary alkyl radical having at least three carbon atoms, optionally containing a heteroatom, and R2 is a secondary alkyl or cycloalkyl radicals different from i-propyl, optionally containing a heteroatom.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: May 29, 2007
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Giampiero Morini, Giulio Balbontin, Ronald R. Andrea, Van Loon Jan Dirk
  • Components and catalysts for the (co)polymerization of olefins
    Patent number: 6841632
    Abstract: Solid catalyst components comprising Ti,Mg, halogen and internal electron-donor compound selected from the 1,3-diethers of formula (I) in which R is a C1-C10 alkyl group, R1 is a linear or branched primary alkyl radical having at least three carbon atoms, optionally containing a heteroatom, and R2 is a secondary alkyl or cycloalkyl radicals different from i-propyl, optionally containing a heteroatom. The catalysts obtained by using as internal electron-donor compound the said 1,3-diethers display in the (co)polymerization of olefins an excellent balance of activity and stereospecificity that cannot be reached with the ethers known in the art.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: January 11, 2005
    Assignee: Basell Poliolefine Italis S.p.A.
    Inventors: Giampiero Morini, Giulio Balbontin, Ronald R. Andrea, Van Loon Jan Dirk
  • Components and catalysts for the (co) polymerization of olefins
    Publication number: 20040014597
    Abstract: Solid catalyst components comprising Ti,Mg, halogen and an internal electron-donor compound selected from the 1,3-diethers of formula (I) in which R is a C1-C10 alkyl group, R1 is a linear or branched primary alkyl radical having at least three carbon atoms, optionally containing a heteroatom, and R2 is a secondary alkyl or cycloalkyl radicals different from i-propyl, optionally containing a heteroatom. The catalysts obtained by using as internal electron-donor compound the said 1,3-diethers display in the (co)polymerization of olefins an excellent balance of activity and stereospecificity that cannot be reached with the ethers known in the art.
    Type: Application
    Filed: February 12, 2003
    Publication date: January 22, 2004
    Inventors: Giampiero Morini, Giulio Balbontin, Ronald R Andrea, Van Loon Jan Dirk