公开(公告)号：US20220356649A1

公开(公告)日：2022-11-10

申请号：US17765311

申请日：2020-09-29

Applicant: KELHEIM FIBRES GMBH ,  STORA ENSO OYJ

Inventor： Ingo BERNT ,  Sebastian BASEL ,  Laura NOUSIAINEN ,  Iida OLLIKAINEN ,  Robin GRANKVIST

IPC: D21H13/08 ,  D21H21/20 ,  D04H1/4382 ,  D04H1/26 ,  D04H1/28

Abstract: Wetlaid web, selected from the group consisting of wet-laid non-woven fabrics and paper, comprising a cellulosic fibre material in the form of viscose fibre at an amount of at least 5% w/w, characterized in that the wetlaid web comprises microfibrillated cellulose at an amount of 0.5% w/w to 5% w/w, wherein the microfibrillated cellulose has a particle size distribution (x10) of 5 μm to 30 μm, and a wet-strength agent.

公开(公告)号：US11486095B2

公开(公告)日：2022-11-01

申请号：US16958249

申请日：2018-12-20

Applicant: Stora Enso OYJ

Inventor： Åsa Nyflött ,  Chris Bonnerup ,  Magnus Ekberg ,  Kaj Backfolk

IPC: D21H21/16 ,  D21H19/22 ,  D21H19/38 ,  D21H19/40 ,  D21H19/56 ,  D21H19/82 ,  D21H19/84 ,  D21H27/10

Abstract: The present invention discloses a paperboard for packaging of liquid and frozen food, comprising a dispersion coating as the only barrier layer on its outside/print side. It has surprisingly been found that a dispersion coating comprising latex and pigment applied on the outside/print side of a paperboard for liquid and/or frozen food may serve as the only barrier against moisture arising from condensation.

公开(公告)号：US11479915B2

公开(公告)日：2022-10-25

申请号：US16316864

申请日：2017-07-03

Applicant: Stora Enso OYJ

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

IPC: D21H13/04 ,  C08B11/12 ,  C08B15/04 ,  D21H11/18 ,  D21C9/00 ,  C08L1/02

Abstract: The present invention relates to a method for manufacturing an intermediate product that can be stored and transported and efficiently converted into microfibrillated cellulose with limited energy input at the time of conversion. More specifically, the invention involves the use of dewatered carboxymethylcellulose or carboxylated cellulose fiber having a low degree of substitution and a high amount of additives.

公开(公告)号：US11459432B2

公开(公告)日：2022-10-04

申请号：US16461897

申请日：2017-11-16

Applicant: Stora Enso OYJ

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

IPC: C08J5/18 ,  D21H11/18 ,  D21H25/04 ,  D21H19/34 ,  D21H13/00 ,  D21H21/18 ,  D21H19/52 ,  D21H21/16 ,  D21H17/28

Abstract: Method for making a film that comprises microfibrillated cellulose, wherein the film has low OTR values and especially suitable for a tropical environment. The method comprising the steps of providing a suspension comprising microfibrillated cellulose (MFC), forming a film from said suspension, wherein the film having a solid content above 40%, preferably above 50%, treating the film with flame or plasma treatment, such that a surface activation takes place on the film, and cooling the film, wherein the surface of the film having a decreased OTR value and a high moisture resistance.

公开(公告)号：US20220298264A1

公开(公告)日：2022-09-22

申请号：US17299986

申请日：2019-12-04

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Mari Hiltunen ,  Nina Ruohoniemi ,  Titta Lammi ,  Ville Ribu ,  Tim Lindfors ,  Jari Räsänen

IPC: C08B1/00 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C08B31/00 ,  C08B30/10 ,  B29C64/118

Abstract: The present invention relates to a web of fibrous cellulosic material derived from wood pulp, said web being suitable for three-dimensional moulding to form a packaging product, wherein the web comprises >40 wt % of soft wood chemical pulp and at least one strength enhancement agent, wherein the web has a grammage less than 400 g/m2, and wherein the cellulose fibers of said soft wood chemical pulp comprise a fiber curl of >9%.

公开(公告)号：US20220290377A1

公开(公告)日：2022-09-15

申请号：US17754157

申请日：2020-09-25

Applicant: Stora Enso OYJ

Inventor： Henna Paakkonen Alvim ,  Kaj Backfolk ,  Anders Moberg

IPC: D21H27/30 ,  D21H19/82 ,  D21H19/04 ,  D21H19/22 ,  B65D65/42 ,  B65D65/40

Abstract: The invention discloses a container for the packaging of compositions comprising water water-in-oil (W/O) emulsions and/or oil-in-water (O/W) emulsions, which container comprises a tube-formed body made from a paperboard comprising a fiber based substrate comprising a first ply forming a back ply, a second ply forming a top ply and a third ply forming at least one middle ply, wherein the fiber based substrate comprises CTMP. The compositions comprising W/O or O/W emulsions may be semi-solid compositions. The invention solves the problem of delamination of the multi-ply board connected to prior art solutions. In addition, the container provides the specific barriers needed to pack compositions comprising W/O- or O/W-emulsions. It further provides the required flexibility yet rigidity to be used in such tube-formed containers.

公开(公告)号：US20220259466A1

公开(公告)日：2022-08-18

申请号：US17610856

申请日：2020-05-13

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström

IPC: C09J103/02 ,  C09J105/06 ,  C09J105/08 ,  C09J189/00 ,  C09J163/00 ,  B32B21/04 ,  B32B7/12 ,  B27D1/04

Abstract: The present invention relates to the use of a bonding resin prepared by providing an aqueous solution comprising at least one biobased product selected from tannin, starch, soy protein, glycerol, chitin, pectin, dextrose or other carbohydrates, or a mixture thereof and mixing the aqueous solution with one or more of certain crosslinkers such as ethers, and optionally one or more additives. The bonding resin is used in the manufacture of laminates, mineral wool insulation or wood products, such as engineered wood products, such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF) or particle boards. Preferably, the bonding resin does not comprise lignin.

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.