Patents by Inventor Lauri Hauru

Lauri Hauru 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).

  • Publication number: 20230383144
    Abstract: According to an example aspect of the present invention, there is provided a method of joining objects of hydrophilic polymeric biomaterials. In the method, an ionic liquid is applied onto the surfaces of the objects; the surfaces are pressed together; and the ionic liquid is removed. The method produces a product that can consist to 100% of biomaterial, with no synthetic polymer or chemicals remaining in the product.
    Type: Application
    Filed: August 4, 2023
    Publication date: November 30, 2023
    Inventors: Lauri Hauru, Alistair King, Ilkka Kilpeläinen, Antti Korpela, Hannes Orelma
  • Patent number: 11753565
    Abstract: According to an example aspect of the present invention, there is provided a method of joining objects of hydrophilic polymeric biomaterials. In the method, an ionic liquid is applied onto the surfaces of the objects; the surfaces are pressed together; and the ionic liquid is removed. The method produces a product that can consist to 100% of biomaterial, with no synthetic polymer or chemicals remaining in the product.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 12, 2023
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Lauri Hauru, Alistair King, Ilkka Kilpeläinen, Antti Korpela, Hannes Orelma
  • Publication number: 20230057864
    Abstract: A dispersion of cellulose fibers, a method of preparing the same and uses thereof. The dispersion is produced by providing a cellulose feedstock comprising cellulose fibers; by providing a mixture of an ionic liquid and a protic antisolvent for cellulose as a dispersion medium, the ionic liquid being selected from the group of protic salts of superbases capable of dissolving cellulose; and by mixing said cellulose feedstock into said dispersion medium so as to disperse the cellulose fibers therein to form a dispersion which is stable for at least 24 hours at room temperature. The dispersion can be used as an additive of cellulose pulps for making of fibrous products.
    Type: Application
    Filed: December 18, 2020
    Publication date: February 23, 2023
    Inventors: Lauri Hauru, Ilkka Kilpeläinen, Olli Suontausta, Alexander Deutschle
  • Publication number: 20210403760
    Abstract: According to an example aspect of the present invention, there is provided a method of joining objects of hydrophilic polymeric biomaterials. In the method, an ionic liquid is applied onto the surfaces of the objects; the surfaces are pressed together; and the ionic liquid is removed. The method produces a product that can consist to 100% of biomaterial, with no synthetic polymer or chemicals remaining in the product.
    Type: Application
    Filed: June 21, 2018
    Publication date: December 30, 2021
    Inventors: Lauri Hauru, Alistair King, Ilkka Kilpeläinen, Antti Korpela, Hannes Orelma
  • Publication number: 20190153625
    Abstract: A method of manufacturing a cellulose-based shaped article. The method comprises subjecting a solution of lignocellulosic material, dissolved in a distillable ionic liquid, to a spinning method, wherein the ionic liquid is a diazabicyclononene (DBN)-based ionic liquid. DBN-based ionic liquids have good dissolution power, high thermal and chemical stability, lack runaway reactions and exhibit low energy consumption, due to low spinning temperatures. The shaped cellulose articles can be used as textile fibres, high-end non-woven fibres, technical fibres, films for packaging, and barriers films in batteries, as membranes and as carbon-fibre precursors.
    Type: Application
    Filed: January 30, 2019
    Publication date: May 23, 2019
    Inventors: Anne Michud, Alistair W.T. King, Arno Parviainen, Herbert Sixta, Lauri Hauru, Michael Hummel, Ilkka Kilpeläinen
  • Patent number: 10240259
    Abstract: A method of manufacturing a cellulose-based shaped article. The method comprises subjecting a solution of lignocellulosic material, dissolved in a distillable ionic liquid, to a spinning method, wherein the ionic liquid is a diazabicyclononene (DBN)-based ionic liquid. DBN-based ionic liquids have good dissolution power, high thermal and chemical stability, lack runaway reactions and exhibit low energy consumption, due to low spinning temperatures. The shaped cellulose articles can be used as textile fibers, high-end non-woven fibers, technical fibers, films for packaging, and barriers films in batteries, as membranes and as carbon-fiber precursors.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: March 26, 2019
    Assignees: Aalto University Foundation sr, Helsingin Yliopisto
    Inventors: Anne Michud, Alistair W. T. King, Arno Parviainen, Herbert Sixta, Lauri Hauru, Michael Hummel, Iikka Kilpeläinen
  • Publication number: 20160053407
    Abstract: A method of manufacturing a cellulose-based shaped article. The method comprises subjecting a solution of lignocellulosic material, dissolved in a distillable ionic liquid, to a spinning method, wherein the ionic liquid is a diazabicyclononene (DBN)-based ionic liquid. DBN-based ionic liquids have good dissolution power, high thermal and chemical stability, lack runaway reactions and exhibit low energy consumption, due to low spinning temperatures. The shaped cellulose articles can be used as textile fibres, high-end non-woven fibres, technical fibres, films for packaging, and barriers films in batteries, as membranes and as carbon-fibre precursors.
    Type: Application
    Filed: April 4, 2014
    Publication date: February 25, 2016
    Inventors: Anne Michud, Alistair W.T. King, Arno Parviainen, Herbert Sixta, Lauri Hauru, Michael Hummel, IIkka Kilpeläinen