Patents by Inventor Jari Äärilää{umlaut over ( )}

Jari Äärilää{umlaut over ( )} 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).

  • Polymer composition for pipes
    Patent number: 6878784
    Abstract: A multimodal polymer composition for pipes is disclosed. The polymer is a multimodal polyethylene with a density of 0.930-0.965 g/cm3, an MFR5 of 0.2-1.2 g/10 min, an Mn of 8000-15000, an Mw of 180-330×103, and an Mw/Mn of 20-35, said multimodal polyethylene comprising a low molecular weight (LMW) ethylene homopolymer fraction and a high molecular weight (HMW) ethylene copolymer fraction, said HMW fraction having a lower molecular weight limit of 3500, and a weight ratio of the LMW fraction to the HMW fraction of (35-55):(65:45).
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: April 12, 2005
    Assignee: Borealis Technology
    Inventors: Markku Asumalahti, Jari Äärilää{umlaut over ( )}, Ari Palmroos, Mats Bäckman, Anette Nilsson, Magnus Palmlöf