Patents by Inventor Mauri Kostiainen

Mauri Kostiainen 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).

  • Functional colloidal lignin particles and methods of preparation thereof
    Publication number: 20230331929
    Abstract: Method of forming functionalized colloidal lignin particles, comprising the step of providing lignin in a dissolved form, aldehyde functionalizing lignin, forming a colloidal dispersion of lignin, partially removing organic solvents and heat-curing the dispersion. The concentrated colloidal dispersion is dried by spray drying. The invention can be used in applications where the functioned and colloidal nature of lignin will afford an advantage over bulk lignin.
    Type: Application
    Filed: August 16, 2021
    Publication date: October 19, 2023
    Inventors: Kalle Lintinen, Mauri Kostiainen, Alexander Fusi
  • Aqueous lignin dispersions and methods of preparing the same
    Patent number: 11524974
    Abstract: Method of forming colloidal lignin particles, comprising the step of dissolving lignin in a mixture of organic solvents, feeding of the said solution into water, and forming acolloidal dispersion of lignin. The used solvents are recovered with methods such as distillation and reused in the process. Water is removed from the colloidal dispersion by ultrafiltration and reused in the process. The concentrated colloidal dispersion is dried by spray drying. The invention can be used in applications where the colloidal nature of lignin will afford an advantage over bulk lignin.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: December 13, 2022
    Assignee: Aalto University Foundation sr
    Inventors: Kalle Lintinen, Rahul Prasad Bangalore Ashok, Timo Leskinen, Yao Xiao, Monika Österberg, Mauri Kostiainen, Pekka Oinas, Lauri Rautkari, Akio Yamamoto, Saara Hautamäki, Niko Meri
  • Lignin particle based hydrogel and the method for preparation of lignin colloidal particles by solvent evaporation process
    Publication number: 20220010077
    Abstract: Method of preparing a dispersion of colloidal lignin particles by providing a solution of lignin in a mixture of an organic solvent for lignin and a non-solvent for lignin having a ratio of non-solvent to solvent; and increasing the ratio of the non-solvent to the solvent to produce an aqueous dispersion of colloidal lignin particles. The dispersions are stable and the colloidal lignin particles are useful for many applications such as rheology modifiers in three-dimensional printing of hydrogels, or in purification systems such as filters, and packed columns, and as flocculants.
    Type: Application
    Filed: November 29, 2019
    Publication date: January 13, 2022
    Inventors: Monika Österberg, Mika Sipponen, Mauri Kostiainen, Laura Äkräs, Guillaume Rivière, Xue Zhang
  • Aqueous lignin dispersions and methods of preparing the same
    Publication number: 20200255466
    Abstract: Method of forming colloidal lignin particles, comprising the step of dissolving lignin in a mixture of organic solvents, feeding of the said solution into water, and forming acolloidal dispersion of lignin. The used solvents are recovered with methods such as distillation and reused in the process. Water is removed from the colloidal dispersion by ultrafiltration and reused in the process. The concentrated colloidal dispersion is dried by spray drying. The invention can be used in applications where the colloidal nature of lignin will afford an advantage over bulk lignin.
    Type: Application
    Filed: October 26, 2018
    Publication date: August 13, 2020
    Inventors: Kalle Lintinen, Rahul Prasad Bangalore Ashok, Timo Leskinen, Yao Xiao, Monika Österberg, Mauri Kostiainen, Pekka Oinas, Lauri Rautkari, Akio Yamamoto, Saara Hautamäki, Niko Meri