Patents by Inventor Marjo Vaananen

Marjo Vaananen 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).

  • Multi-stage process for producing multimodal linear low density polyethylene polymers
    Patent number: 8461280
    Abstract: A multimodal linear low density polyethylene polymer having a final density of 900 to 940 kg/m3, and containing at least one ?-olefin comonomer in addition to ethylene comprising: (A) 30 to 60 wt % of a lower molecular weight component being an ethylene homopolymer or a copolymer of ethylene and at least one ?-olefin; and (B) 70 to 40 wt % of a higher molecular weight component being a copolymer of ethylene and at least one ?-olefin, said ?-olefin being the same or different from any ?-olefin used in component (A) but with the proviso that both components (A) and (B) are not polymers of ethylene and butane alone; wherein the multimodal LLDPE has a dart drop of at least 700 g; and wherein components (A) and (B) are obtainable using a Ziegler-Natta catalyst.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: June 11, 2013
    Assignee: Borealis Technology Oy
    Inventors: Virginie Eriksson, Marjo Vaananen, Markku Vahteri, Thomas Garoff, Petri Rekonen, Jari Hatonen, Siw Bodil Fredriksen, Katrin Nord-Varhaug, Marit Seim, Jorunn Nilsen, Irene Helland
  • Ligand modified Ziegler-Natta catalyst for olefin (co-)polymerization
    Patent number: 7998894
    Abstract: The present invention relates to a Ziegler-Natta catalyst comprising a solid, ligand-modified catalyst component formed at least from (a) a compound of Group 1 to 3 of the Periodic Table (IUPAC), (b) a transition metal compound of Group 4 to 10 of the Periodic Table (IUPAC), or a compound of an actinide or lanthanide, (c) one or more organic ligand compound(s) which is/are selected from organic compounds comprising a cyclopentadienyl anion backbone, and (d) a compound of Group 13 of the Periodic Table, wherein the catalyst component of said Ziegler-Natta catalyst is formed in an emulsion/solidification method, to a process for the production of such a catalyst, and to a process for the production of an olefin (co-)polymer in the presence of such a catalyst.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 16, 2011
    Assignee: Borealis Technology Oy
    Inventors: Marjo Väänänen, Minna Stalhammar, Young-Soo Ko, Siw Fredriksen, Marita Savilahti
  • POLYMER
    Publication number: 20110028665
    Abstract: A multimodal linear low density polyethylene polymer having a final density of 900 to 940 kg/m3, and containing at least one ?-olefin comonomer in addition to ethylene comprising: (A) 30 to 60 wt % of a lower molecular weight component being an ethylene homopolymer or a copolymer of ethylene and at least one ?-olefin; and (B) 70 to 40 wt % of a higher molecular weight component being a copolymer of ethylene and at least one ?-olefin, said ?-olefin being the same or different from any ?-olefin used in component (A) but with the proviso that both components (A) and (B) are not polymers of ethylene and butane alone; wherein the multimodal LLDPE has a dart drop of at least 700 g; and wherein components (A) and (B) are obtainable using a Ziegler-Natta catalyst.
    Type: Application
    Filed: December 5, 2008
    Publication date: February 3, 2011
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Virginie Eriksson, Markku Vahteri, Marjo Vaananen, Thomas Garoff, Jari Hatonen, Petri Rekonen, Siw Bodil Fredriksen, Katrin Nord-Varhaug, Marit Seim, Jorunn Nilsen, Irene Helland
  • LIGAND-MODIFIED ZIEGLER-NATTA CATALYST FOR OLEFIN (CO-) POLYMERIZATION
    Publication number: 20090292089
    Abstract: The present invention relates to a Ziegler-Natta catalyst comprising a solid, ligand-modified catalyst component formed at least from (a) a compound of Group 1 to 3 of the Periodic Table (IUPAC), (b) a transition metal compound of Group 4 to 10 of the Periodic Table (IUPAC), or a compound of an actinide or lanthanide, (c) one or more organic ligand compound(s) which is/are selected from organic compounds comprising a cyclopentadienyl anion backbone, and (d) a compound of Group 13 of the Periodic Table, wherein the catalyst component of said Ziegler-Natta catalyst is formed in an emulsion/solidification method, to a process for the production of such a catalyst, and to a process for the production of an olefin (co-)polymer in the presence of such a catalyst.
    Type: Application
    Filed: July 13, 2007
    Publication date: November 26, 2009
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Marjo Vaananen, Minna Stalhammar, Young-Soo Ko, Siw Fredriksen, Marita Sutela