公开(公告)号：US20230002572A1

公开(公告)日：2023-01-05

申请号：US17757256

申请日：2020-12-22

Applicant: Stora Enso OYJ

Inventor： Otto Nylén ,  Isto Heiskanen ,  Isabel Knöös

IPC: C08J5/18 ,  D21H11/18 ,  D21H17/36 ,  D21H17/25 ,  D21H23/28

Abstract: A method for making a cellulose film comprising microfibrillated cellulose (MFC) is provided, said method comprising the step of: applying an aqueous emulsion of one or more vegetable oils to a surface of a casting substrate. Improved release of the MFC film can thus be achieved.

公开(公告)号：US20220372708A1

公开(公告)日：2022-11-24

申请号：US17755339

申请日：2020-11-04

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Chris Bonnerup ,  Isto Heiskanen ,  Katja Lyytikäinen

IPC: D21H19/52 ,  D21H19/34 ,  D21H19/12 ,  C09D101/28 ,  B32B23/06 ,  B32B27/10

Abstract: A method for reducing the surface oil absorption of cellulose based substrate is provided, in which a coating composition is applied to said substrate; and in which the coating composition comprises carboxymethyl cellulose (CMC) and/or a salt of carboxymethyl cellulose (CMC). A coated paperboard, and a laminate of the coated paperboard with a polymer layer is also provided. The coating composition provides improved surface oil absorption and improved adherence of an overlying polymer layer.

公开(公告)号：US20220372250A1

公开(公告)日：2022-11-24

申请号：US17755340

申请日：2020-11-04

Applicant: Stora Enso OYJ

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

IPC: C08L1/02 ,  C08B15/00 ,  C08J5/18 ,  C08J7/04 ,  C09D101/28 ,  D21H11/18 ,  D21H19/34 ,  B82Y30/00

Abstract: A cellulosic film comprising MFC is provided, which is coated on at least one surface thereof with at least one cured barrier layer. The cured barrier layer comprises CMC which has been crosslinked with a crosslinking agent. A method for improving the barrier properties of a cellulosic film is also provided.

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.