Patents by Inventor Tom Lindstrom

Tom Lindstrom 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).

  • Patent number: 8911591
    Abstract: A method for the manufacturing of nanocellulose. The method includes a first modification of the cellulose material, where the cellulose fibers are treated with an aqueous electrolyte-containing solution of an amphoteric cellulose derivative. The modification is followed by a mechanical treatment. By using this method for manufacturing nanocellulose, clogging of the mechanical apparatus is avoided. Also the nanocellulose is manufactured in accordance with the method and uses of the cellulose.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: December 16, 2014
    Assignee: Innventia AB
    Inventors: Mikael Ankerfors, Tom Lindstrom
  • Patent number: 8241756
    Abstract: The invention relates to compositions for coating of printing paper, said compositions comprising microfibrillated cellulose (MFC) and one or more polysaccharide hydrocolloids, and use of said compositions. Further, the invention relates to coated paper, comprising a first layer of polysaccharide hydrocolloid(s) and a second layer of MFC, and use of said paper. A method for reducing the linting and/or dusting of a paper is also disclosed.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: August 14, 2012
    Assignee: Innventia AB
    Inventors: Mikael Ankerfors, Tom Lindstrom, Hainong Song, Miroslav Hoc
  • Publication number: 20110081554
    Abstract: The invention relates to compositions for coating of printing paper, said compositions comprising microfibrillated cellulose (MFC) and one or more polysaccharide hydrocolloids, and use of said compositions. Further, the invention relates to coated paper, comprising a first layer of polysaccharide hydrocolloid(s) and a second layer of MFC, and use of said paper. A method for reducing the linting and/or dusting of a paper is also disclosed.
    Type: Application
    Filed: April 3, 2009
    Publication date: April 7, 2011
    Applicant: INNVENTIA AB
    Inventors: Mikael Ankerfors, Tom Lindstrom, Hainong Song, Miroslav Hoc
  • Publication number: 20110036522
    Abstract: A method for the manufacturing of nanocellulose. The method includes a first modification of the cellulose material, where the cellulose fibres are treated with an aqueous electrolyte-containing solution of an amphoteric cellulose derivative. The modification is followed by a mechanical treatment. By using this method for manufacturing nanocellulose, clogging of the mechanical apparatus is avoided. Also the nanocellulose is manufactured in accordance with the method and uses of the cellulose.
    Type: Application
    Filed: April 8, 2009
    Publication date: February 17, 2011
    Applicant: INNVENTIA AB
    Inventors: Mikael Ankerfors, Tom Lindstrom
  • Publication number: 20100193116
    Abstract: A method for manufacturing a composite material having reduced mechanosorptive creep includes the following steps: a) mixing fibers of a lignocellulosic material with a thermoplastic material where the thermoplastic material is in fiber form; b) adding the mixture made in step a) onto a wet web, thus forming a composite material; and c) hot pressing of the composite material. The composite material having reduced mechanosorptive creep being the manufacturing result of the method, and the use of the method and the composite material are described.
    Type: Application
    Filed: July 4, 2008
    Publication date: August 5, 2010
    Applicant: INNVENTIA AB
    Inventors: Kristofer Gamstedt, Hannes Vomhoff, Tommy Iversen, Fredrik Berthold, Tom Lindstrom, Anders Stenman, Mikael Lindstrom, Petri Makela, Kristina Wickholm
  • Publication number: 20090221812
    Abstract: A method for treatment of chemical pulp for the manufacturing of microfibrillated cellulose includes the following steps: a) providing a hemicellulose containing pulp, b) refining the pulp in at least one step and treating the pulp with one or more wood degrading enzymes at a relatively low enzyme dosage, and c) homogenizing the pulp thus providing the microfibrillated cellulose. According to a second aspect of the invention a microfibrillated cellulose obtainable by the method according to the first aspect is provided. According to a third aspect of the invention, use of the microfibrillated cellulose according to the second aspect in food products, paper products, composite materials, coatings or in rheology modifiers (e.g. drilling muds) is provided.
    Type: Application
    Filed: January 31, 2007
    Publication date: September 3, 2009
    Applicant: STFI- PACKFORSK AB
    Inventors: Mikael Ankerfors, Tom Lindstrom, Gunnar Henriksson
  • Patent number: 6551457
    Abstract: A process for the production of paper from an aqueous suspension containing cellulosic fibers, and optional fillers, which comprises draining the suspension to obtain a paper web and subjecting the obtained paper web to impulse pressing by passage through at least one press nip having at least one heated roll which is in contact with the web and heated to a temperature above 100° C., wherein a chemical system comprising a polymer component and micro- or nanoparticles are added to the suspension or the paper web before the paper web passes the press nip of the impulse unit.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: April 22, 2003
    Assignee: Akzo Nobel N.V.
    Inventors: Caroline Westman, Tom Lindstrom, Janne Laine, Maria Norell
  • Publication number: 20020062938
    Abstract: A process for the production of paper from an aqueous suspension containing cellulosic fibers, and optional fillers, which comprises draining the suspension to obtain a paper web and subjecting the obtained paper web to impulse pressing by passage through at least one press nip having at least one heated roll which is in contact with the web and heated to a temperature above 100° C., wherein a chemical system comprising a polymer component and micro- or nanoparticles are added to the suspension or the paper web before the paper web passes the press nip of the impulse unit.
    Type: Application
    Filed: September 20, 2001
    Publication date: May 30, 2002
    Inventors: Caroline Westman, Tom Lindstrom, Janne Laine, Maria Norell
  • Patent number: 4911790
    Abstract: The present invention relates to a process for obtaining retention of the manufacture of paper, whereby one adds a cationic, high polymer polysaccharide at the preparation of a stock of paper pulp; that one adds an anionic aluminium compound, or a combination of an aluminium salt and an alkali or an acid to the formation in situ of such an anionic aluminium compound immediately prior to the head box, whereby pH immediately prior to the head box is kept at pH 7 to 8.
    Type: Grant
    Filed: January 6, 1988
    Date of Patent: March 27, 1990
    Assignee: STFI
    Inventors: Tom Lindstrom, Hans Hallgren, Fritz Hedborg