Patents by Inventor Maarit Peltola

Maarit Peltola 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).

  • Process for producing microfibrillated cellulose
    Patent number: 8778134
    Abstract: A process for treating cellulosic fibers comprises mechanically pre-treating the fibers followed by treating the fibers with an enzyme and thereafter mixing the fibers with a solution comprising an alkali metal hydroxide followed by mechanically treating the fibers to form microfibrillated cellulose. In this way it is possible to produce microfibrillated cellulose (MFC) in an improved and energy efficient way.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: July 15, 2014
    Assignee: Stora Enso OYJ
    Inventors: Marianna Vehvilainen, Taina Kamppuri, Maarit Peltola, Ali Harlin, Pertti Nousiainen
  • PROCESS FOR PRODUCING MICROFIBRILLATED CELLULOSE
    Publication number: 20120160433
    Abstract: A process for treating cellulosic fibres comprises mechanically pre-treating the fibres followed by treating the fibres with an enzyme and thereafter mixing the fibres with a solution comprising an alkali metal hydroxide followed by mechanically treating the fibres to form microfibrillated cellulose. In this way it is possible to produce microfibrillated cellulose (MFC) in an improved and energy efficient way.
    Type: Application
    Filed: July 2, 2010
    Publication date: June 28, 2012
    Applicant: STORA ENSO OYJ
    Inventors: Marianna Vehvilainen, Taina Kamppuri, Maarit Peltola, Ali Harlin, Pertti Nousiainen