公开(公告)号：US20200339783A1

公开(公告)日：2020-10-29

申请号：US16955921

申请日：2018-12-20

Applicant: Stora Enso OYJ

Inventor： Gisela Cunha ,  Heidi Saxell

IPC: C08L1/02 ,  D21H11/18 ,  D21H11/20 ,  D21C9/00 ,  C08J5/24 ,  C07C45/30 ,  D04H3/015 ,  D01F2/24

Abstract: A method is provided for preparing a fibrous material of crosslinked microfibrillated cellulose. Dialdehyde microfibrillated cellulose is spun into a fibrous material; said fibrous material is pre- or post-treated (by reduction of pH) to provide crosslinking between the dialdehyde microfibrillated cellulose. Fibrous materials such as filaments or mats, and polymer composites comprising such materials are also described.

公开(公告)号：US20200332468A1

公开(公告)日：2020-10-22

申请号：US16643060

申请日：2018-08-30

Applicant: Stora Enso OYJ

Inventor： Tuomo Sippus

IPC: D21H11/18 ,  C08L1/02 ,  D21F11/12 ,  B32B29/00 ,  B32B29/08 ,  B32B7/12 ,  D21D1/20

Abstract: The present invention relates to a method for producing a paperboard comprising the steps of; providing a furnish comprising cellulosic fibers, applying the furnish on at least one wire to form a web, dewatering the web on said at least one wire by subjecting the web to a pressure above 150 kPa without the use of a press roll nip and thereafter pressing the dewatered web to form a paperboard. The invention also relates to a paperboard and a corrugated board.

公开(公告)号：US20200308768A1

公开(公告)日：2020-10-01

申请号：US16076197

申请日：2017-02-06

Applicant: Stora Enso OYJ

Inventor： Jari Räsänen ,  Mari Hiltunen ,  Ali Harlin ,  Hanna Koskela ,  Christiane Laine ,  Laura Kela

IPC: D21F11/00 ,  C08J9/16 ,  B31F1/00 ,  B65D1/34 ,  C08J9/228 ,  D21H21/22 ,  D21H21/56

Abstract: The invention concerns a method of manufacturing paper or board, the paper or board obtained by the method, and a method of producing a tray from the board. In a fibrous stock for papermaking is incorporated an amount of polymer coated fibrous particles, which even have a foaming agent such as moisture contained therein. A web is formed from the fibrous stock on a forming fabric of a paper or board machine, followed by pressing and drying to a finished paper or board. As the paper or board is sufficiently heated the foaming agent within the particles evaporates, causing expansion and foaming of the polymer coating, which adds to malleability of the board as it is moulded into a shaped article such as a board tray. The invention even covers production of doubly coated fibrous particles for use in said methods, the inner coating layer being of a foamable polymer with a higher melt flow rate and the outer coating layer being of a non-foaming polymer of a lower melt flow rate.

公开(公告)号：US20200223812A1

公开(公告)日：2020-07-16

申请号：US16628816

申请日：2018-07-11

Applicant: Stora Enso Oyj

Inventor： Henricus Johannes Cornelis Den Ouden ,  Valery Sokolovskii ,  Thomas R. Boussie ,  Gary M. Diamond ,  Eric L. Dias ,  Guang Zhu ,  Staffan Torssell ,  Vincent J. Murphy

IPC: C07D307/68

Abstract: The present disclosure provides processes for the purification of 2,5-furandicarboxylic acid (FDCA). The present disclosure further provides crystalline preparations of purified FDCA, as well as processes for making the same. In addition, the present disclosure provides mixtures used in processes for the purification of FDCA.

公开(公告)号：US20200207507A1

公开(公告)日：2020-07-02

申请号：US16640457

申请日：2018-07-13

Applicant: STORA ENSO OYJ

Inventor： Mika TUHKUNEN

IPC: B65D5/22 ,  B65D5/468

Abstract: A leakproof and liquid-tight packaging box of corrugated board, which box is erected mechanically using glueing as an aid. What is essential in the invention is that the corner surfaces of the structurally strong, torsionally rigid, leakproof and liquid-tight packaging box stackable one on top of another are folded and glued to the outer surface of the vertical surface of the short side. In addition, it comprises an inward-formed cone structure of the vertical surface of the long side of the box, and a rigid and load-resistant beam structure is formed on all sides of the packaging box.

公开(公告)号：US10658209B2

公开(公告)日：2020-05-19

申请号：US15548801

申请日：2016-02-02

Applicant: Stora Enso OYJ

Inventor： Juha Maijala ,  Petri Sirvio ,  Tommi Jokinen

IPC: H05K3/30 ,  H01L21/67 ,  H05K13/04 ,  H05K13/02 ,  H05K13/08 ,  H01L21/68 ,  H05K3/12

Abstract: Apparatus (200, 300, 400) for component positioning comprises at least one receptacle (212, 412) configured to receive a number of components (103) to be placed on a target substrate (108, 111), agitator (210, 410) configured to exert force impulses, such as abrupt force impulses, on the receptacle so as to cause the components to change their position inside the receptacle, inspection equipment (216, 316, 416) configured to verify the position of the components inside the receptacle, and pick and place equipment (206, 306, 406) configured to pick one or more components from the receptacle that fulfil a predefined position criterion and place the components on the target substrate. A related method for component positioning is presented.

公开(公告)号：US20200086604A1

公开(公告)日：2020-03-19

申请号：US16604489

申请日：2018-04-11

Applicant: Stora Enso OYJ

Inventor： Cecilia Land Hensdal ,  Adrianna Svensson ,  Liv Bergqvist ,  Amy Tran Carlström ,  Lars Axrup

IPC: B32B5/06 ,  B32B23/04 ,  B32B23/08 ,  B32B23/06 ,  B32B27/32 ,  B32B27/36 ,  B32B27/30

Abstract: The present invention relates to a method for manufacturing at least one layer of a film wherein the method comprises the steps of; providing a first suspension comprising microfibrillated cellulose, providing a second suspension comprising microfibrillated dialdehyde cellulose, mixing the first suspension with the second suspension to form a mixture, applying said mixture to a substrate to form a fibrous web and drying said web to form at least one layer of said film. The present invention further relates to a film comprising said at least one layer.

公开(公告)号：US20200010629A1

公开(公告)日：2020-01-09

申请号：US16489801

申请日：2018-02-27

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen

IPC: C08J5/18 ,  C08L1/02 ,  C08K3/36 ,  C08K3/34 ,  D21H17/68 ,  D21H11/18 ,  D21H21/52

Abstract: The present invention relates to a new process for improving runnability and dimensional stability when manufacturing a film comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the film properties. According to the present invention a high amount of nanoparticles is used as an additive, optionally together with a retention polymer.

公开(公告)号：US20200008372A1

公开(公告)日：2020-01-09

申请号：US16489817

申请日：2018-02-27

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen ,  Elina Skerfe

IPC: A01G24/35 ,  A01G24/18 ,  A01G24/15 ,  A01G24/28 ,  A01G24/25 ,  A01G24/23

Abstract: The present invention is directed to a culture medium comprising a soilless substrate, microfibrillated cellulose and a hydrophilic or amphiphilic polymer. The present invention is particularly useful in soilless agriculture, such as for horticultural/agricultural use that is based on a soilless substrate such as mineral or glass wool. These types of culture media are often used in greenhouses but may also be used for outdoor horticulture or agriculture.

公开(公告)号：US20200002893A1

公开(公告)日：2020-01-02

申请号：US16465426

申请日：2017-11-30

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen

IPC: D21H11/18 ,  D21H17/68 ,  D21H17/29 ,  D21H17/55 ,  D21H17/45 ,  D21H23/04

Abstract: The present invention relates to a process wherein microfibrillated cellulose (MFC) is mixed with at least two retention aids, selected from a cationic or amphoteric polymer and a microparticle or nanoparticle as a pre-mix before dosing it to the stock in a process for manufacture of a fiber based product.