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.

公开(公告)号：US11247443B2

公开(公告)日：2022-02-15

申请号：US17251363

申请日：2019-06-12

Applicant: Stora Enso OYJ

Inventor： Åsa Nyflött ,  Chris Bonnerup ,  Magnus Ekberg

IPC: B32B27/10 ,  B32B27/32 ,  B65D65/38 ,  B32B29/00 ,  D21H19/52 ,  D21H19/54

Abstract: The invention relates to a packaging material comprising: a paperboard substrate comprising a first and a second side, at least one barrier layer applied on the first side of the substrate, the barrier layer comprising a water-soluble polymer selected from the group of polyvinyl alcohol, a copolymer of ethylene and polyvinyl alcohol, starch, carboxymethylcellulose and combinations thereof in an amount of at least 50 weight %, based on the dry weight of the barrier layer, an extrusion coated layer of a polyolefin on the barrier layer, and at least one dispersion barrier layer applied on the second side of the substrate, which at least one dispersion barrier layer forms a printing surface of the packaging material. The invention further relates to a method of manufacturing a respective packaging material.

公开(公告)号：US20220010492A1

公开(公告)日：2022-01-13

申请号：US17293587

申请日：2019-10-29

Applicant: Stora Enso OYJ

Inventor： Nina Miikki ,  Kaj Backfolk

IPC: D21H19/58 ,  D21H21/54 ,  B41M5/52 ,  D21H21/16

Abstract: A surface treatment composition comprising nanocellulose—such as microfibrillated cellulose (MFC)—and particles is provided. The particles comprise a supporting material and an active material comprising a salt of a multivalent metal. Various products comprising such a surface treatment composition and methods using said compositions are also provided.

公开(公告)号：US20220002946A1

公开(公告)日：2022-01-06

申请号：US17295962

申请日：2019-11-14

Applicant: Stora Enso OYJ

Inventor： Isabel Knöös

IPC: D21H11/20 ,  D21H17/36 ,  D21H19/56 ,  D21H27/16 ,  D21H27/18 ,  D21H21/14 ,  C08J7/048 ,  C08J7/043

Abstract: The present invention relates to a gas barrier film for a paper or paperboard based packaging material,said gas barrier film comprising: a microfibrillated cellulose layer (MFC layer), at least one surface of which has been grafted with a fatty acid halide; and a polymer layer disposed on the at least one surface of the MFC layer which has been grafted with a fatty acid halide. The present invention further relates to a paper or paperboard based packaging material,containersand cartonblanks comprising the gas barrier film, and to a method for manufacturing the gas barrier film.

公开(公告)号：US20210403734A1

公开(公告)日：2021-12-30

申请号：US17294794

申请日：2019-11-27

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Jukka Kankkunen

IPC: C09D11/14 ,  C08L1/02 ,  C08J5/18

Abstract: The present invention is directed to a process for manufacturing a film or coating comprising high amounts of cellulosic nanomaterial. According to the present invention, a screen printing press, such as a rotary screen press, is used to create a film or coating comprising cellulosic nanomaterial. One benefit of the present process is that the suspension used in the printing process has a high dry content and high viscosity, thereby facilitating the process for manufacturing a film or coating comprising high amounts of cellulosic nanomaterial.

公开(公告)号：US20210388200A1

公开(公告)日：2021-12-16

申请号：US17281646

申请日：2019-10-07

Applicant: Stora Enso OYJ

Inventor： Ben Nasli Bakir ,  Ashar Zafar ,  Jesper Ekström ,  Dimitri Areskogh

IPC: C08L61/06 ,  C08H7/00 ,  C09J161/06

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.