公开(公告)号：US20230016725A1

公开(公告)日：2023-01-19

申请号：US17756983

申请日：2020-12-15

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen

IPC: C08J9/35 ,  C08L1/02 ,  B82Y30/00 ,  C08J9/00

Abstract: The present invention relates to a foam formed solid composite, comprising: a matrix phase consisting of a mixture of nanocellulose, at least one foaming agent, and optional additives, and a dispersed phase consisting of solid low-density particles having a density of less than 1.2 kg/dm3. The present invention further relates to a method and a liquid foam composition for manufacturing the solid composite.

公开(公告)号：US11504956B2

公开(公告)日：2022-11-22

申请号：US16471983

申请日：2017-12-21

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Esa Saukkonen

IPC: D21F5/00 ,  B32B29/02 ,  D21C9/18 ,  D21H11/18 ,  D21H19/34 ,  D21H23/26

Abstract: The present invention relates to a method for the production of a coated paper, paperboard or film, wherein the method comprises the steps of; providing a first suspension comprising cellulose fibers, applying the first suspension on a substrate to form a fibrous web, wherein the web has a first and a second side, providing a second suspension comprising micro fibrillated cellulose, applying the second suspension either to the first side of the fibrous web or to a surface of a drying equipment and conducting said fibrous web through the drying equipment whereby the second suspension is added to the first side of the web forming the coated paper, paperboard or film. The invention also relates to a paper, paperboard or film produced according to the method.

公开(公告)号：US20220363871A1

公开(公告)日：2022-11-17

申请号：US17597317

申请日：2020-06-30

Applicant: Stora Enso OYJ

Inventor： Ulla Jansson ,  Anders Moberg ,  Kaj Backfolk

IPC: C08L1/02 ,  D21C9/00 ,  D21H21/52 ,  D21H11/02 ,  D21H27/30 ,  D21H11/18 ,  D21H21/18

Abstract: The present invention relates to a refined cellulose fiber composition useful as a strength enhancing agent for paper and paperboard, wherein the refined cellulose fiber composition has a Schopper-Riegler (SR) number in the range of 80-98 as determined by standard ISO 5267-1, and wherein the refined cellulose fiber composition has a content of fibers having a length >0.2 mm of at least 12 million fibers per gram based on dry weight. The invention further relates to a method for preparing the refined cellulose fiber composition and to pulp paper and paperboard comprising the refined cellulose fiber composition.

公开(公告)号：US20220340735A1

公开(公告)日：2022-10-27

申请号：US17753798

申请日：2020-09-15

Applicant: Stora Enso OYJ

Inventor： Cecilia Land Hensdal ,  Venkata Prabhakar Soudham ,  Kaj Backfolk

IPC: C08L1/02 ,  C08J5/18 ,  C09D101/02 ,  C09D7/63 ,  B65D65/40 ,  B65D65/46

Abstract: The present invention is directed to a film or coating comprising a fiber material, wherein at least 60% by weight of said fiber material is microfibrillated cellulose, said film or coating also comprising at least 1% by weight of extractives from wood bark or cork wood. The invention is also directed to products, such as packaging materials, using or incorporating said film or coating. Such packaging materials are for example laminates or multi-layer structures. The films or coatings according to the present invention having advantageous barrier properties and are therefore particularly suitable for sensitive objects that need to be packaged in a controlled or modified atmosphere. The present invention is also directed to a composition comprising a fiber material, wherein at least 60% by weight of said fiber material is microfibrillated cellulose, said composition also comprising at least 1% by weight of extractives from wood bark or cork wood. The composition is useful for example in the preparation of the film or coating.

公开(公告)号：US11441272B2

公开(公告)日：2022-09-13

申请号：US16643060

申请日：2018-08-30

Applicant: Stora Enso OYJ

Inventor： Tuomo Sippus

IPC: D21H11/18 ,  B32B7/12 ,  B32B29/00 ,  B32B29/08 ,  D21F11/12 ,  C08L1/02 ,  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：US20220243401A1

公开(公告)日：2022-08-04

申请号：US17610860

申请日：2020-05-13

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Johanna Lyytikainen

IPC: D21H19/12 ,  D21J1/08 ,  D21H23/50 ,  D21H23/48

Abstract: The invention relates to a method for applying starch to a paper or paperboard web, the method comprising the steps of: providing an aqueous suspension comprising starch particles and at least 1 wt %, based on the dry solid content of the suspension, of an amphiphilic polymer, creating a foam of the aqueous suspension, and applying the foam to the paper or paperboard web. The invention further relates to a paper or paper board product obtained by the method.

公开(公告)号：US20220242636A1

公开(公告)日：2022-08-04

申请号：US17597218

申请日：2020-06-30

Applicant: Stora Enso OYJ

Inventor： Susanne Hansson ,  Raija Bådenlid ,  Kaj Backfolk

IPC: B65D65/42 ,  B32B29/00 ,  B32B29/06 ,  D21H11/18 ,  D21H27/30 ,  C08L1/02 ,  C08L5/14 ,  C08L29/04 ,  D21H21/16

Abstract: The present invention relates to a paper or paperboard substrate having barrier properties, which substrate comprises a single or multiply structure with e.g. a top ply, a middle ply and a bottom ply, wherein at least one of said top ply and said bottom ply is provided with a high-density bio-barrier layer, and wherein said top or bottom ply provided with the high-density bio-barrier layer and said top or bottom ply not provided with the high-density bio-barrier layer have both been subjected to grafting with a fatty acid halide.

公开(公告)号：US11370894B2

公开(公告)日：2022-06-28

申请号：US15760120

申请日：2016-09-20

Applicant: Stora Enso OYJ ,  University of Maine System Board of Trustees

Inventor： Duncan Mayes ,  Janne Pynnonen ,  Christopher H West ,  Douglas J Gardner ,  Yousoo Han

IPC: C08J9/34 ,  C08J9/00 ,  B32B5/14 ,  C08J5/06 ,  C08J5/04 ,  B29B7/90 ,  B29B9/14 ,  B29C44/34 ,  B29C44/44 ,  B29K25/00 ,  B29K401/00

Abstract: The present invention relates to a method of making a foamed cellulosic fiber-thermoplastic composite article. The method includes the steps of providing a copolymer composition, combining the copolymer composition and cellulosic fibers, applying heat, mixing energy and pressure to form a foamable mixture, and forming the foamable article in a molding or extruding operation. The method is characterized in that at least 10% of the cellulosic fibers have been thermally modified prior to being combined with the copolymer composition.

公开(公告)号：US20220076237A1

公开(公告)日：2022-03-10

申请号：US17415882

申请日：2019-12-19

Applicant: Stora Enso OYJ

Inventor： Lauri Huhtasalo

IPC: G06Q20/32 ,  G06Q20/20 ,  G07F9/02 ,  G06Q10/00

Abstract: Method for purchasing a product with a packaging from a smart fridge and recycle the packaging, wherein the method comprising the steps of identifying the consumer, unlocking a door of the smart fridge, opening the door, closing and locking the door, running a system inventory round in to detect which product that has been picked out from the smart fridge by the consumer, and charging the cost for the product from the consumer's payment account and sending a receipt to the mobile device. The invention is characterized in that the method further comprising the steps of placing the RFID tagged packaging in a smart recycling bin, detecting the RFID tag of the packaging via an RFID reader at the recycling bin, connecting the packaging to the consumer, and refunding the consumer for placing the product packaging in the recycling bin.

公开(公告)号：US20220074144A1

公开(公告)日：2022-03-10

申请号：US17417882

申请日：2020-01-23

Applicant: Stora Enso OYJ

Inventor： Frank Peng ,  Kaj Backfolk ,  Isto Heiskanen ,  Teija Laukala

IPC: D21H11/18 ,  D21H17/67 ,  D21H19/52 ,  D21H23/28 ,  D21H23/48 ,  D21H23/50 ,  D21H27/10 ,  D21H27/32 ,  D21H27/38 ,  D21H27/40

Abstract: The invention discloses a paperboard comprising a base ply, a top ply, and an intermediate layer disposed in-between the at least one base ply and the top ply. The intermediate layer comprises pigment and microfibrillated cellulose (MFC). The application of an intermediate layer comprising pigment and MFC in-between the base ply and the top ply gives rise to improved optical properties of the paperboard, even when using an uncoated top ply having a low grammage. This makes it possible to reduce the grammage of top ply and still obtain good optical properties.