公开(公告)号：US11383403B2

公开(公告)日：2022-07-12

申请号：US17072219

申请日：2020-10-16

Applicant: Stora Enso OYJ

Inventor： Markus Hirmke ,  Hermann Kirchmayr

IPC: B27D1/00 ,  B27F1/00 ,  B27M1/00 ,  B32B7/00 ,  B32B21/00 ,  E04C2/00 ,  E04C3/00 ,  B27M1/08 ,  B27F1/02 ,  B27M3/00 ,  B32B7/12 ,  B32B21/04 ,  E04C2/12 ,  B32B21/14 ,  E04C3/12 ,  B27D1/08 ,  B27M1/02 ,  B32B21/13

Abstract: A laminated wood product comprising providing a plank presenting a pair of parallel major surfaces, a pair of minor surfaces, a pair of end surfaces and a longitudinal direction parallel with said major and minor surfaces and perpendicular to the end surfaces, said plank having a water content of more than 25% by weight, preferably more than 30% by weight. At least one of the major surfaces is laminated to a surface of a second member.

公开(公告)号：US20220162178A1

公开(公告)日：2022-05-26

申请号：US17594328

申请日：2020-04-01

Applicant: Stora Enso Oyj

Inventor： Staffan Torssell ,  Marco Antonio Saucedo ,  Christopher Paul Dunckley ,  Kenneth P. Keckler

IPC: C07D307/46

Abstract: Novel processes for recovering solvents and isolating humin or humate materials from 5-hydroxymethylfurfural (HMF) and 2,5-furandicarboxylic acid (FDCA) pathway processes are described. In some embodiments, the process utilizes a thin film evaporator, such as a horizontal thin film evaporator (HTFE).

公开(公告)号：US11326306B2

公开(公告)日：2022-05-10

申请号：US16955470

申请日：2018-12-17

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen ,  Katja Lyytikäinen

IPC: D21H11/18 ,  B32B27/10 ,  B32B27/32 ,  D21F1/00 ,  D21H17/32 ,  D21H17/42 ,  D21H17/45 ,  D21H21/08 ,  D21H23/04

Abstract: A method for the production of a fibrous product from a fibrous web, wherein the method comprises the steps of: —providing a fibrous suspension comprising a microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is in the range of 60 to 99.9 weight-% based on total dry solid content, —adding an uncharged, amphoteric or weakly cationic polymer having a molecular weight of at least 50000 g/mol to said suspension, —adding an anionic polymer having a molecular weight of at least 00000 g/mol to said suspension to provide a mixture of said microfibrillated cellulose, said uncharged, amphoteric or weakly cationic polymer and said anionic polymer, 1—providing said mixture to a substrate to form a fibrous web, wherein the amount of uncharged, amphoteric or weakly cationic polymer in said mixture is in the range of 0.1 to 20 kg/metric ton based on total dry solid content and wherein the amount of anionic polymer in said mixture is in the range of 0.01 to 10 kg/metric ton based on total dry 20 solid content; and—dewatering said fibrous web to form a fibrous product.

公开(公告)号：US11319671B2

公开(公告)日：2022-05-03

申请号：US16080359

申请日：2017-03-30

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen ,  Katja Lyytikäinen

IPC: D21H11/18 ,  D21H17/68 ,  D21H17/37 ,  D21H17/28 ,  D21H17/55 ,  D21H21/10 ,  D21H27/38 ,  D21H17/44 ,  D21H17/29 ,  D21H21/52 ,  D21H17/24 ,  D21H27/10 ,  D21H17/13 ,  D21H21/50 ,  B82Y30/00

Abstract: The present invention relates to a new process for improving dewatering 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 polymer.

公开(公告)号：US20220106446A1

公开(公告)日：2022-04-07

申请号：US17643970

申请日：2021-12-13

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Dimitri Areskogh

IPC: C08J3/03 ,  C08L97/00 ,  B27N3/00

Abstract: The present invention relates to an improved process for preparing an aqueous dispersion of lignin and the use of said suspension in the preparation of a resin.

公开(公告)号：US20220074140A1

公开(公告)日：2022-03-10

申请号：US17415878

申请日：2019-12-20

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Katja Lyytikäinen ,  Otto Nylén ,  Kaj Backfolk

IPC: D21C9/00 ,  D21H11/18 ,  D21H17/28

Abstract: The present invention relates to a method for preparing a surface-treated fibrous material comprising nanocellulose, in which a fibrous material is surface treated with an organic acid or salt thereof. Fibrous materials as such are also provided. The present technology allows improved Water Vapor Transmission Rates (WVTR) for the fibrous material, while operating on an industrial scale.

公开(公告)号：US11248343B2

公开(公告)日：2022-02-15

申请号：US16755387

申请日：2018-10-09

Applicant: Stora Enso OYJ

Inventor： Isabel Knöös

IPC: D21H11/18 ,  D21C5/00 ,  D21H27/10

Abstract: The present invention relates to a process for improving the strechability of films comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the oxygen barrier properties. According to the present invention, a film is formed from a suspension comprising microfibrillated cellulose having a broad size distribution.

公开(公告)号：US11244220B2

公开(公告)日：2022-02-08

申请号：US16760992

申请日：2018-10-31

Applicant: Stora Enso OYJ

Inventor： Lauri Huhtasalo ,  Eerik Halonen ,  Juha Ikonen

IPC: G06K19/077 ,  G06K19/07

Abstract: Method for manufacturing an RFID tag comprising an IC and an antenna. The method comprising the steps of providing an antenna made of a soldering material, which antenna is at least partly covered with a hot melt adhesive in solid form; heating the antenna to a temperature above its melting point, wherein the heated parts of the antenna and the hot melt adhesive melt, placing an IC in a predetermined position which position is suitable for the IC to connect to the antenna; pressing the IC and antenna together, such that, an electrical connection between the IC and the antenna is established; and cooling RFID tag, such that the hot melt adhesive and the antenna solidify, wherein a soldered joint between the IC and the antenna is achieved and the hot melt adhesive surrounds the joint between the IC and the antenna.

公开(公告)号：US11242652B2

公开(公告)日：2022-02-08

申请号：US16075715

申请日：2017-02-17

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Esa Saukkonen

IPC: D21H15/00 ,  D21H11/18 ,  D21H11/16 ,  B65D65/38 ,  B65D85/10 ,  D21H17/35 ,  D21H17/67 ,  D21H17/68 ,  D21H19/10 ,  D21H15/02 ,  D21F11/02 ,  D21H21/28 ,  D21H27/10

Abstract: A sheet having dead-fold properties, wherein said sheet comprises cellulose fibers whereof at least 75%, preferably at least 90%, or more preferably at least 95% of said cellulose fibers have a fiber length of less than 1 mm, and wherein the tensile strength ratio (MD/CD) of the film is above 1.4, preferably higher than 1.6 and most preferably higher than 1.8.

公开(公告)号：US20220002947A1

公开(公告)日：2022-01-06

申请号：US17291360

申请日：2019-10-30

Applicant: Stora Enso OYJ

Inventor： Juhani Hyytiäinen ,  Raino Kauppinen ,  Antti Outinen

IPC: D21H19/54 ,  D21H19/58 ,  D21H19/64 ,  D21H19/84 ,  D21H23/24 ,  B41M5/50

Abstract: The present invention provides a book paper suitable for both inkjet and offset printing. The inventive printing paper comprises a base substrate with a grammage of below 100 gsm comprising at least 50 wt % mechanical cellulosic pulp fibers and having a total filler content of below 15 wt %. The substrate is surface treated with a composition comprising pigments in a range of 15-30 wt %, starch in a range of 20-40 wt %, latex in a range of 10-20 wt % and a multivalent metal salt in a range of 10-30 wt %.