公开(公告)号：US20220128460A1

公开(公告)日：2022-04-28

申请号：US17430350

申请日：2020-02-12

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Guillaume Genoud ,  Matti Reinikainen

IPC: G01N21/3504 ,  G01N1/40

Abstract: According to an example aspect of the present invention, there is provided a method of detecting carbon dioxide in a gaseous sample, the method comprising: flowing the gaseous sample through an anion exchange resin that is capable of selectively adsorbing CO2 present in the gaseous sample; releasing the adsorbed CO2 from the resin by heating the resin to a temperature in the range 80 to 250° C. to obtain a concentrated gaseous sample; determining the amount of an isotopic form of CO2 in the concentrated gaseous sample by infrared absorption spectroscopy.

公开(公告)号：US20220120035A1

公开(公告)日：2022-04-21

申请号：US17427700

申请日：2020-01-31

Applicant: Andritz Oy ,  Metsä Fibre Oy ,  Teknologian tutkimuskeskus VTT Oy

Inventor： Lauri Pehu-Lehtonen ,  Pauliina Sjögård ,  Outi Poukka ,  Katariina Kemppainen ,  Anna Kalliola ,  Tiina Liitiä ,  Tapio Vehmas

IPC: D21C11/00 ,  D21H11/04 ,  C08H7/00

Abstract: According to an example aspect of the present invention, there is provided a method for producing an oxidised lignin based high performance surface active agent in techno-economically feasible manner within kraft pulp mill without interfering the main process.

公开(公告)号：US11247269B2

公开(公告)日：2022-02-15

申请号：US15572350

申请日：2016-04-27

Applicant: Teknologian Tutkimuskeskus VTT Oy

Inventor： Tomi Lindroos ,  Ulla Kanerva ,  Juha Lagerbom ,  Pertti Lintunen

IPC: B22F9/20 ,  B22F1/00 ,  B33Y70/00

Abstract: The invention relates to a method for forming powder particles, wherein the method comprises feeding a start material mixture including more than one constituents in the form of granules into a reactor comprising a reaction zone and a heat source, performing thermal synthesis in the reaction zone in which the start material mixture is moved and the constituents of the start material mixture react in the presence of heat so that the reaction is started by means of heat of the reactor and energy of the start material mixture is released in the form of heat in order to achieve the reaction, and producing powder particles during the reaction. Further, the invention relates to a powder particle product.

公开(公告)号：US11241648B2

公开(公告)日：2022-02-08

申请号：US16612674

申请日：2018-05-09

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Sampo Ratinen ,  Yrjo Solantausta ,  Matti Nieminen ,  Christian Lindfors ,  Anssi Kalli

IPC: B01D46/24 ,  B01D46/38 ,  C10B49/18 ,  C10B47/20

Abstract: An apparatus and a method for cleaning a stream. The apparatus having at least one hot filtration device, which includes a filter vessel and at least one filter candle located inside the filter vessel, an inlet of medium in an upper part of the filter vessel for supplying the medium including particles to the filter vessel, an outlet of the medium in the bottom part for discharged the medium from the filter vessel, a moving bed including the medium which is arranged in the vessel so that the filter candle is inside the moving bed, at least one feed inlet for supplying the stream to the filter vessel, and at least one gas outlet for supplying a purified gas out from the filter vessel.

公开(公告)号：US20220025147A1

公开(公告)日：2022-01-27

申请号：US17297091

申请日：2019-11-22

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Karita Kinnunen-Raudaskoski ,  Tuomo Hjelt ,  Jani Lehmonen

IPC: C08J9/28 ,  D21H21/56 ,  D21H11/18 ,  C08J9/30 ,  C08J9/00

Abstract: According to an example aspect of the present invention, there is provided a method for foam assisted drying of nano- and microfibrillated cellulose, which is easily up-scalable and cost-efficient.

公开(公告)号：US11214046B2

公开(公告)日：2022-01-04

申请号：US16063300

申请日：2017-02-03

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Jari Vartiainen ,  Christiane Laine ,  Marja Pitkänen ,  Taina Ohra-Aho ,  Adina Anghelescu-Hakala

IPC: B32B27/32 ,  B32B23/08 ,  B32B27/10 ,  C08J7/04 ,  C08J7/043 ,  C08J7/048 ,  C08J7/052 ,  B32B27/12 ,  C08L1/02 ,  C08L23/06

Abstract: According to an example aspect of the present invention, there is provided bio-based mineral oil barrier coatings and films usable for decreasing mineral oil migration, for example in food packaging materials, and thus improving the safety of the materials facing the mineral oil containing environment.

公开(公告)号：US20210403760A1

公开(公告)日：2021-12-30

申请号：US16624918

申请日：2018-06-21

Applicant: Helsingin yliopisto ,  Teknologian tutkimuskeskus VTT Oy

Inventor： Lauri Hauru ,  Alistair King ,  Ilkka Kilpeläinen ,  Antti Korpela ,  Hannes Orelma

IPC: C09J5/06

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.

公开(公告)号：US20210210776A1

公开(公告)日：2021-07-08

申请号：US17058674

申请日：2019-06-26

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Pauli Koski

IPC: H01M8/04223 ,  H01M8/04302 ,  H01M8/04225 ,  H01M8/0432 ,  H01M8/04007 ,  H01M8/04029 ,  H01M8/04701 ,  H01M8/04746

Abstract: The invention concerns fuel cell systems and methods for converting chemical energy of a fuel containing hydrogen into electricity. According to the invention, a fuel cell stack is provided having at least one anode and one cathode separated by a proton-exchange membrane. A fuel transport circuit feeds fuel to the fuel cell stack, and a temperature control system is adapted to control the temperature of the fuel cell stack by circulating a coolant medium through said fuel cell stack. The temperature control system includes a pump for circulating the coolant medium, a heater unit connected to a coolant transport circuit for heating the coolant with a PTC heater, a heat radiation unit connected to the coolant transport circuit for removing excess heat, and a temperature sensor. In response to a startup condition of the fuel cell stack, a controller is adapted to read a temperature signal indicative of the fuel cell stack temperature, to bypass the heat radiation unit, if the fuel cell stack temperature is below a first predetermined value, and to connect electric power generated by said fuel cell stack to be started-up to said PTC heater.

公开(公告)号：US11041540B2

公开(公告)日：2021-06-22

申请号：US15039051

申请日：2014-11-25

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Jarkko Keinänen ,  Kalle Vehviläinen ,  Ismo Vessonen

IPC: F16F15/04 ,  F16F15/03 ,  B60G17/015 ,  F16F15/02 ,  B60G13/00 ,  B60G17/019 ,  F16F15/00 ,  F16F15/18

Abstract: A simple and robust suspension arrangement is provided for taking into account different suspension modes without the need for excessive sensoring or electronics. The novel suspension arrangement includes a first suspension element, which directly suspends the object to the frame, and a second suspension element, which suspends the object to the frame through a magnetic coupling between the object and the second suspension element. The magnetic coupling provides a magnetic coupling force (Fh) to act as a threshold such that the suspension arrangement is designed to magnetically decouple the second suspen-sion element from the object when the excitation force (Fe) transmitted be-tween the frame and the object exceeds the magnetic coupling force (Fh).

公开(公告)号：US20210146357A1

公开(公告)日：2021-05-20

申请号：US16627373

申请日：2018-06-25

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Tiina Maaninen ,  Annukka Kokkonen ,  Marika Kurkinen ,  Sanna Aikio

IPC: B01L3/00 ,  B81B1/00 ,  B81C1/00

Abstract: A novel microfluidic chip is proposed for performing a chemical or biochemical test in a metered reaction volume. The microfluidic chip has a body which defines an inner flow volume. An inlet has been provided to the body for connecting the inner flow volume to the ambient space. A waste channel forms part of the inner flow volume and is in fluid communication with the inlet. A sample channel also forms part of the inner flow volume and is in fluid communication with the inlet. The sample channel includes a first hydrophobic stop and a second hydrophobic stop at a distance from the first hydrophobic stop so as to provide a metered reaction volume there between. An expelling channel is in fluid communication with the metered reaction volume of the sample channel through the first hydrophobic stop. A sample reservoir is in fluid communication with the metered reaction volume of the sample channel through the second hydrophobic stop.