Patents by Inventor Marcus Lillandt

Marcus Lillandt 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 and a product thereof
    Patent number: 10883226
    Abstract: The present invention relates to a method of producing microfibrillated cellu-lose (MFC) comprising (i) providing cellulosic material, (ii) drying the cellulosic material so that specific surface area (SSA), when measured with BET-method, is at most 10 m2/g, and (iii) subjecting the dried cellulosic material to mechanical treatment. The present invention additionally relates to microfibril-lated cellulose produced with the method of the present invention.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 5, 2021
    Assignee: Kemira Oyj
    Inventors: Kari Vanhatalo, Tom Lundin, Marcus Lillandt
  • Method for producing microfibrillated cellulose and microfibrillated cellulose
    Patent number: 10329359
    Abstract: The invention relates to a method for producing microfibrillated cellulose, where a suspension comprising cellulose derivative in a liquid phase which comprises an organic solvent is provided. The suspension of cellulose derivative is mechanically treated and microfibrillated cellulose is obtained. At least a part of the liquid phase from the microfibrillated cellulose is separated and microfibrillated cellulose with a dry solids content of >30 weight-% is obtained.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: June 25, 2019
    Assignee: Kemira Oyj
    Inventors: Marcus Lillandt, Veli-Matti Vuorenpalo, Kari Vanhatalo
  • Strength agent, its use and method for increasing strength properties of paper
    Patent number: 10273634
    Abstract: The invention relates to a strength agent for paper, board or the like. The strength agent comprises a first component, which is refined cellulosic fibers having a refining level of >70° SR, and a second component, which is a synthetic cationic polymer having a charge density of 0.1-2.5 meq/g, determined at pH 2.7, and an average molecular weight of >300 000 g/mol. The invention relates also to a use of the strength agent and to a method for increasing strength properties of paper, board or the like.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: April 30, 2019
    Assignee: Kemira Oyj
    Inventors: Matti Hietaniemi, Marcus Lillandt, Kari Vanhatalo, Asko Koskimäki
  • A process for producing microfibrillated cellulose and a product thereof
    Publication number: 20190040581
    Abstract: The present invention relates to a method of producing microfibrillated cellu-lose (MFC) comprising (i) providing cellulosic material, (ii) drying the cellulosic material so that specific surface area (SSA), when measured with BET-method, is at most 10 m2/g, and (iii) subjecting the dried cellulosic material to mechanical treatment. The present invention additionally relates to microfibril-lated cellulose produced with the method of the present invention.
    Type: Application
    Filed: December 22, 2016
    Publication date: February 7, 2019
    Applicant: Kemira Oyj
    Inventors: Kari Vanhatalo, Tom Lundin, Marcus Lillandt
  • Method for producing microfibrillated cellulose and microfibrillated cellulose
    Publication number: 20170313788
    Abstract: The invention relates to a method for producing microfibrillated cellulose, where a suspension comprising cellulose derivative in a liquid phase which comprises an organic solvent is provided. The suspension of cellulose derivative is mechanically treated and microfibrillated cellulose is obtained. At least a part of the liquid phase from the microfibrillated cellulose is separated and microfibrillated cellulose with a dry solids content of >30 weight-% is obtained.
    Type: Application
    Filed: October 29, 2015
    Publication date: November 2, 2017
    Applicant: Kemira Oyj
    Inventors: Marcus Lillandt, Veli-Matti Vuorenpalo, Kari Vanhatalo
  • Strength agent, its use and method for increasing strength properties of paper
    Publication number: 20170268176
    Abstract: The invention relates to a strength agent for paper, board or the like. The strength agent comprises a first component, which is refined cellulosic fibres having a refining level of >70° SR, and a second component, which is a synthetic cationic polymer having a charge density of 0.1-2.5 meq/g, determined at pH 2.7, and an average molecular weight of >300 000 g/mol. The invention relates also to a use of the strength agent and to a method for increasing strength properties of paper, board or the like.
    Type: Application
    Filed: August 18, 2015
    Publication date: September 21, 2017
    Applicant: Kemira Oyj
    Inventors: Matti Hietaniemi, Marcus Lillandt, Kari Vanhatalo, Asko Koskimäki
  • Method for producing a suspension of microfibrillated cellulose, microfibrillated cellulose and its use
    Publication number: 20170183555
    Abstract: The invention relates a method for producing a suspension of microfibrillated cellulose. The method comprises at least the steps of obtaining an aqueous suspension of natural cellulose fibres, adding an additive consisting of at least one natural polymer to the suspension of natural cellulose fibres, and feeding the obtained mixture comprising natural cellulose fibres and the additive into a homogenizer or a fluidizer. The invention relates also to a microfibrillated cellulose obtained by the method and its use.
    Type: Application
    Filed: April 28, 2015
    Publication date: June 29, 2017
    Applicant: Kemira Oyj
    Inventors: Marcus Lillandt, Tom Lundin