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.

公开(公告)号：US20210363701A1

公开(公告)日：2021-11-25

申请号：US17046410

申请日：2019-04-12

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Kaj Backfolk ,  Jukka Kankkunen ,  Antti Veitola

IPC: D21H19/12 ,  D21H11/18 ,  D21H19/84 ,  D21H23/56 ,  D21H23/64 ,  D21G1/00 ,  B32B37/20 ,  B32B37/15 ,  B32B27/10 ,  B32B29/06

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 and/or nanocellulose, 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 polymers and/or particles wherein the second suspension has a Brookfield viscosity above 3000 m Pas at a dry content between 4%-40% by weight, providing at least one calender comprising at least one roll or belt, applying the second suspension to the surface of the at least one calender roll or belt forming a coating web and conducting said fibrous web through the at least one calender whereby the coating web is applied 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：US20210324580A1

公开(公告)日：2021-10-21

申请号：US17292191

申请日：2019-11-08

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Jukka Kankkunen ,  Riku Pihko ,  Vesa Kunnari

IPC: D21F3/08 ,  D21H11/18 ,  D21F7/12 ,  D21F3/04

Abstract: The present invention relates to a method for dewatering a web comprising microfibrillated cellulose, wherein the method comprises the steps of: providing a suspension comprising between 50 weight-% to 100 weight-% of microfibrillated cellulose based on total dry weight, forming a fibrous web of said suspension on a support wherein said web has a dry content of 1-25% by weight, applying a dewatering felt into direct contact with the fibrous web, conducting said fibrous web, arranged between said dewatering felt and said substrate, through a pressing equipment. The invention further relates to a film produced from said method.

公开(公告)号：US20210322895A1

公开(公告)日：2021-10-21

申请号：US17258825

申请日：2019-07-05

Applicant: Stora Enso OYJ

Inventor： Jari Kavakka

IPC: B01D15/18 ,  B01D15/30 ,  B01D15/12 ,  B01D3/02 ,  C09F3/02

Abstract: A method for removing sulfur-containing compounds from methanol, said method comprising the step of subjecting methanol comprising sulfur-containing compounds to centrifugal countercurrent chromatography (CCCC) to remove sulfur-containing compounds, and the use of centrifugal countercurrent chromatography (CCCC) for removing sulfur-containing compounds from methanol.

公开(公告)号：US20210269205A1

公开(公告)日：2021-09-02

申请号：US17257382

申请日：2019-07-02

Applicant: Stora Enso OYJ

Inventor： Lauri Huhtasalo ,  Elham Moradi

IPC: B65D51/24 ,  G06K19/07 ,  G06K19/077 ,  H01Q1/22 ,  H01Q9/28

Abstract: A substantially cylindrical, metal container (1) which container comprising an envelope surface wall (2), a top end and a bottom end (3), wherein the bottom end having a cavity which is formed by a circular concave, parabolic bottom surface (4) and a circular surrounding edge (5). A UHF RFID tag (6), comprising an integrated circuit (7) and an antenna (8), is arranged at the bottom end, wherein the antenna is located at a predetermined distance above the center of the bottom surface (4), such that the bottom surface reflects the antenna radiation.

公开(公告)号：US11084931B2

公开(公告)日：2021-08-10

申请号：US15562929

申请日：2016-04-01

Applicant: Stora Enso OYJ

Inventor： Dimitri Areskogh ,  Ashar Zafar

IPC: C08L97/00 ,  C09J161/12 ,  B27N3/00 ,  C08G8/38 ,  C09J197/00 ,  C08K5/00 ,  C08K5/07

Abstract: The present invention relates to an activated lignin composition, its manufacture and its use thereof. It also relates to a resin comprising lignin, its manufacture and use.