Patents by Inventor Monika Österberg
Monika Österberg 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).
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Publication number: 20240067823Abstract: The invention describes a method of forming aqueous lignin-epoxy hybrid nanoparticles with switchable surface characteristics. The invention is applicable to production of technical adhesives and covalent surface modification of lignin nanoparticles under harsh reaction conditions. Further, in terms of the covalent functionalization of lignin nanoparticles (LNPs), this invention presents the covalent cationization of LNPs by means of attached quaternary ammonium groups.Type: ApplicationFiled: December 21, 2021Publication date: February 29, 2024Inventors: Tao Zou, Monika Österberg, Mika Sipponen, Alexander Henn
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Publication number: 20230220193Abstract: According to an example aspect of the present invention, there is provided a composition comprising colloidal lignin particles and an epoxy compound.Type: ApplicationFiled: May 28, 2021Publication date: July 13, 2023Inventors: Nina Forsman, Monika Österberg, Alexander Henn
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Patent number: 11524974Abstract: 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: GrantFiled: October 26, 2018Date of Patent: December 13, 2022Assignee: Aalto University Foundation srInventors: Kalle Lintinen, Rahul Prasad Bangalore Ashok, Timo Leskinen, Yao Xiao, Monika Österberg, Mauri Kostiainen, Pekka Oinas, Lauri Rautkari, Akio Yamamoto, Saara Hautamäki, Niko Meri
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Publication number: 20220010077Abstract: 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: ApplicationFiled: November 29, 2019Publication date: January 13, 2022Inventors: Monika Österberg, Mika Sipponen, Mauri Kostiainen, Laura Äkräs, Guillaume Rivière, Xue Zhang
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Patent number: 10786829Abstract: The present invention relates to a continuous roll-to-roll process for improving the water tolerance of bio-based polymers, in particular cellulose nanofibrils (CNF) films. Furthermore, the invention provides a method, which combines surface modification/functionalization for improving water stability and wet strength, UV/Ozone treatment, corona treatment or plasma activation for purifying and activating the surface and thus increasing the reaction efficiency, and further hydrophobization of the surface of CNF film.Type: GrantFiled: November 30, 2015Date of Patent: September 29, 2020Assignee: Teknologian tutkimuskeskus VTT OyInventors: Jari Vartiainen, Tero Malm, Vesa Kunnari, Tuomas Hänninen, Tekla Tammelin, Maria Soledad Peresin, Monika Österberg, Leena-Sisko Johansson
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Publication number: 20200255466Abstract: 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: ApplicationFiled: October 26, 2018Publication date: August 13, 2020Inventors: Kalle Lintinen, Rahul Prasad Bangalore Ashok, Timo Leskinen, Yao Xiao, Monika Österberg, Mauri Kostiainen, Pekka Oinas, Lauri Rautkari, Akio Yamamoto, Saara Hautamäki, Niko Meri
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Publication number: 20170266693Abstract: The present invention relates to a continuous roll-to-roll process for improving the water tolerance of bio-based polymers, in particular cellulose nanofibrils (CNF) films. Furthermore, the invention provides a method, which combines surface modification/functionalization for improving water stability and wet strength, UV/Ozone treatment, corona treatment or plasma activation for purifying and activating the surface and thus increasing the reaction efficiency, and further hydrophobization of the surface of CNF film.Type: ApplicationFiled: November 30, 2015Publication date: September 21, 2017Applicant: Teknologian tutkimuskeskus VTT OyInventors: Jari Vartiainen, Tero Malm, Vesa Kunnari, Tuomas Hänninen, Tekla Tammelin, Soledad Peresin, Monika Österberg, Leena-Sisko Johansson
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Patent number: 9506197Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. The strength of the paper and the retention of the fillers in paper can be improved. A furnish prepared by a method, and a paper or a paper board manufactured from the furnish.Type: GrantFiled: December 17, 2014Date of Patent: November 29, 2016Assignee: UPM-KYMMENE CORPORATIONInventors: Janne Laine, Monika Österberg, Delphine Miquel, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
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Patent number: 9506198Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. The strength of the paper and the retention of the fillers in paper can be improved. A furnish prepared by a method, and a paper or a paper board manufactured from the furnish.Type: GrantFiled: December 17, 2014Date of Patent: November 29, 2016Assignee: UPM-KYMMENE CORPORATIONInventors: Janne Laine, Monika Österberg, Delphine Miquel, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
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Patent number: 9458571Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. The strength of the paper and the retention of the fillers in paper can be improved. A furnish prepared by a method, and a paper or a paper board manufactured from the furnish.Type: GrantFiled: December 17, 2014Date of Patent: October 4, 2016Assignee: UPM-KYMMENE CORPORATIONInventors: Janne Laine, Monika Österberg, Delphine Miquel, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
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Patent number: 9181653Abstract: The present invention provides a method for producing modified nanofibrillated cellulose characterized by bringing cellulosic material into a fiber suspension, adsorbing a cellulose derivative or polysaccharide or polysaccharide derivative onto fibers in said fiber suspension under special conditions and subjecting the obtained fiber suspension derivative to mechanical disintegration. A modified nanofibrillated cellulose obtainable by a method of the present invention is provided. Furthermore, the invention relates to the use of said modified nanofibrillated cellulose.Type: GrantFiled: October 31, 2013Date of Patent: November 10, 2015Assignee: UPM-KYMMENE OYJInventors: Jouni Paltakari, Janne Laine, Monika Österberg, Ramjee Subramanian, Jan-Erik Teirfolk
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Publication number: 20150144279Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. The strength of the paper and the retention of the fillers in paper can be improved. A furnish prepared by a method, and a paper or a paper board manufactured from the furnish.Type: ApplicationFiled: December 17, 2014Publication date: May 28, 2015Inventors: Janne Laine, Monika Österberg, Delphine Miquel, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
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Publication number: 20150101769Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. The strength of the paper and the retention of the fillers in paper can be improved. A furnish prepared by a method, and a paper or a paper board manufactured from the furnish.Type: ApplicationFiled: December 17, 2014Publication date: April 16, 2015Inventors: Janne LAINE, Monika Österberg, Delphine Miquel, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
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Publication number: 20150101770Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. The strength of the paper and the retention of the fillers in paper can be improved. A furnish prepared by a method, and a paper or a paper board manufactured from the furnish.Type: ApplicationFiled: December 17, 2014Publication date: April 16, 2015Inventors: Janne Laine, Monika Österberg, Delphine Miquel, Leila Pohjola, Imeli Sinisalo, Harri Kosonen
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Patent number: 8945345Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. A furnish and a paper or a paper board.Type: GrantFiled: April 29, 2010Date of Patent: February 3, 2015Assignee: UPM-Kymmene CorporationInventors: Janne Laine, Monika Österberg, Miquel Delphine, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
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Publication number: 20140182797Abstract: The present invention provides a method for producing modified nanofibrillated cellulose characterized by bringing cellulosic material into a fiber suspension, adsorbing a cellulose derivative or polysaccharide or polysaccharide derivative onto fibers in said fiber suspension under special conditions and subjecting the obtained fiber suspension derivative to mechanical disintegration. A modified nanofibrillated cellulose obtainable by a method of the present invention is provided. Furthermore, the invention relates to the use of said modified nanofibrillated cellulose.Type: ApplicationFiled: October 31, 2013Publication date: July 3, 2014Applicant: UPM-KYMMENE OYJInventors: Jouni PALTAKARI, Janne Laine, Monika Österberg, Ramjee Subramanian, Jan-Erik Teirfolk
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Publication number: 20120132383Abstract: A method for preparing aqueous furnish to be used in paper or paper board manufacturing. Filler and/or fibers are treated with cationic polyelectrolyte and nanofibrillated cellulose. A furnish and a paper or a paper board.Type: ApplicationFiled: April 29, 2010Publication date: May 31, 2012Applicant: UPM-KYMMENE CORPORATIONInventors: Janne Laine, Monika Österberg, Miguel Delphine, Leila Pohjola, Irmeli Sinisalo, Harri Kosonen
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Publication number: 20120043039Abstract: The present invention provides a method for producing modified nanofibrillated cellulose characterized by bringing cellulosic material into a fiber suspension, adsorbing a cellulose derivative or polysaccharide or polysaccharide derivative onto fibers in said fiber suspension under special conditions and subjecting the obtained fiber suspension derivative to mechanical disintegration. A modified nanofibrillated cellulose obtainable by a method of the present invention is provided. Furthermore, the invention relates to the use of said modified nanotibrillated cellulose.Type: ApplicationFiled: February 12, 2010Publication date: February 23, 2012Applicant: UPM-KYMMENE OYJInventors: Jouni Paltakari, Janne Laine, Monika Österberg, Ramjee Subramanian, Jan-Erik Teirfolk