公开(公告)号：US20190291938A1

公开(公告)日：2019-09-26

申请号：US16316729

申请日：2017-07-03

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen ,  Seppo Lampainen ,  Simo Siitonen ,  Marianne Andersson

IPC: B65D81/26 ,  A23B7/157 ,  A23L3/358 ,  B01J20/32 ,  B01J20/28 ,  B01J20/30 ,  B01J20/02 ,  B65D65/42 ,  D21H21/22 ,  D21H19/02 ,  C08L1/02

Abstract: The present invention relates to a material suitable for use in packages comprising nano-sized cellulose and an ethylene scavenging or ethylene absorbing agent. The invention also relates to methods for manufacturing such material, which may be paper, label, paperboard, plastic or film products.

公开(公告)号：US20190276619A1

公开(公告)日：2019-09-12

申请号：US16345994

申请日：2017-10-31

Applicant: Stora Enso OYJ

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

IPC: C08J5/18 ,  D21H11/18 ,  D21H25/04

Abstract: A method of forming a film comprising nanocellulose having an Oxygen Transmission Rate (OTR) value in the range of 0.1 to 300 cc/m2/24 h at 38° C. and 85% relative humidity (RH), and having a basis weight in the range of in the range of 0.1 to 45 g/m2 wherein the method comprises the steps of; providing a suspension comprising nanocellulose, forming at least one layer of a web or a film from said suspension; drying said formed web or film to a dry content of at least 65 weight-%, wherein said method further comprises the steps of; treating at least one side of said dewatered and dried web or film with ultra violet (UV) or electron beam (EB) irradiation; and wherein at least one cooling step is provided in connection with or after the UV or EB treatment step.

公开(公告)号：US20190264394A1

公开(公告)日：2019-08-29

申请号：US16345348

申请日：2017-10-27

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen

IPC: D21H11/18 ,  D21H21/06 ,  D21H23/04

Abstract: The invention discloses a method to enable the efficient use of surfactants in web forming of a cellulose containing material, e.g. in the making of paper or paperboard. The method comprises the addition of microfibrillated cellulose (MFC) or nanocrystalline cellulose (NCC) to the white water in a web-forming process in order to form complexes with surface active agents. The formed complexes are at least partly recycled to the process. This enables the producer to have control over the concentration of surface active agents in the system.

公开(公告)号：US20190234020A1

公开(公告)日：2019-08-01

申请号：US16312449

申请日：2017-06-20

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Esa Saukkonen

IPC: D21H15/10 ,  D21H17/68 ,  D21H17/24 ,  D21H21/06 ,  D21H19/22 ,  D21H19/82 ,  D21F1/10 ,  D21G1/00 ,  D21H27/10 ,  B32B27/32 ,  B32B27/10

CPC classification number: D21H15/10 ,  B32B27/10 ,  B32B27/32 ,  B32B29/00 ,  B32B2250/02 ,  B32B2262/062 ,  B32B2307/7244 ,  B32B2439/40 ,  B65D65/38 ,  B65D81/34 ,  D21F1/10 ,  D21G1/00 ,  D21H11/18 ,  D21H17/24 ,  D21H17/68 ,  D21H19/22 ,  D21H19/824 ,  D21H21/06 ,  D21H27/10 ,  D21H27/38

Abstract: The invention concerns a method of producing an MFC film comprising reinforcement fibers, which film show excellent oxygen barrier properties and is easy to handle. The method of manufacturing the film comprises the steps of: —providing a suspension comprising a first microfibrillated cellulose (MFC) in an amount of at least 50 weight %, reinforcement fibers in an amount of at least 5 weight %, all percentages calculated on the total solid content of said suspension, and a formation aid, —mixing said suspension to form a mixture, —forming a fibrous web from the mixture, and —dewatering and/or drying said fibrous web to form a film having a basis weight of less than 40 g/m2, a specific formation number of below 0.45 g0.5/m2, and an Oxygen Transmission Rate (OTR) value of below 100 ml/m2/per 24 hours, preferably of below 50 ml/m2 per 24 hours at 50% relative humidity. The invention further discloses a film and use of the film in food or liquid packaging applications.

公开(公告)号：US20190226146A1

公开(公告)日：2019-07-25

申请号：US16337130

申请日：2017-09-27

Applicant: Stora Enso OYJ

Inventor： Riku Pihko ,  Vesa Kunnari

IPC: D21H11/18 ,  D21F5/18 ,  D21F5/00 ,  C08J5/18

Abstract: The present invention relates to a method for the production of a film comprising microfibrillated cellulose, wherein the method comprises the steps of; providing a suspension comprising between 70 weight-% to 100 weight-% of microfibrillated cellulose based on total dry weight, forming a fibrous web of said suspension, drying the web in a drying equipment wherein the web is at least partly dried at a drying rate above 75 kg(H2O)/m2/h by use of hot air whereby a film is formed. The invention also relates to a film produce according to the method and a paper or paperboard substrate comprising said film.

公开(公告)号：US20190185872A1

公开(公告)日：2019-06-20

申请号：US16200012

申请日：2018-11-26

Applicant: STORA ENSO OYJ

Inventor： Juha Immanen ,  Yrjö Helariutta ,  Kaisa Nieminen

IPC: C12N15/82 ,  C12N9/10

CPC classification number: C12N15/8261 ,  C12N9/10 ,  C12N9/1085 ,  C12N15/8229 ,  C12N15/8295 ,  C12Y205/01027 ,  Y02A40/146

Abstract: The present invention relates to a genetic construct comprising a nucleic acid sequence encoding cytokinin biosynthetic isopentenyl-transferase enzyme (IPT) operable linked to a promoter allowing expression of said nucleic acid sequence in cambial cells. The invention relates also a method for producing a transgenic plant capable of increased biomass production and/or increased stem volume growth compared to wild type plant and a method for improving the production of biomass and/or increased stem volume growth in trees, as well as to a tree that over expresses an endogenous or exogenous nucleic acid sequence encoding IPT in cambial cells and a wood product obtainable from the transgenic tree.

公开(公告)号：US20190152094A1

公开(公告)日：2019-05-23

申请号：US16316807

申请日：2017-07-03

Applicant: Stora Enso OYJ

Inventor： Ashar Zafar ,  Dimitri Areskogh ,  Jesper Ekström

IPC: B27N3/00 ,  B27N3/02 ,  B27N3/14 ,  C09D161/34 ,  C09D7/40

Abstract: The present invention relates to a lignin-based phenolic resin, particularly useful in the manufacture of oriented strand boards (OSB).

公开(公告)号：US20190054650A1

公开(公告)日：2019-02-21

申请号：US15764050

申请日：2016-09-28

Applicant: Stora Enso OYJ

Inventor： Duncan Mayes ,  Janne Pynnönen ,  Reeta-Maria Stöd

IPC: B27K5/00 ,  B27K3/15 ,  C08G8/10 ,  C09D15/00 ,  C09D161/06

Abstract: The present invention relates to a process for preparing a modified wood product wherein a step of resin treatment is followed by a thermal modification step. The present invention also relates to a modified wood product produced using said process.

公开(公告)号：US10208132B2

公开(公告)日：2019-02-19

申请号：US14893751

申请日：2014-05-26

Applicant: Metsä Fibre Oy ,  Stora Enso Oyj

Inventor： Alistair W. T. King ,  Christoph Selg ,  Pirkko Karhunen ,  Jorma Matikainen ,  Ilkka Kilpeläinen

IPC: C08B37/08 ,  C08B11/00 ,  C07K14/415 ,  C08B5/00 ,  C08L1/02 ,  C08L5/08 ,  C08L97/02 ,  D01F2/28

Abstract: A method of modifying a polymer having hydroxyl groups, selected from the group of polysaccharides and lignin, to give a modified polymer comprising the step of contacting said polymer with at least one organic phosphonate salt in order to chemically modify the polymer, said organic phosphonate salt being in a liquid phase. The method of polymer modification provides novel polymers. Modified polymers obtained from a polymer having been treated with at least one organic phosphonate salt are also disclosed. The modified polymers can be used as such or separated and optionally recovered from the solution, optionally being formed into particular materials or shapes.

公开(公告)号：US20190047273A1

公开(公告)日：2019-02-14

申请号：US16087281

申请日：2017-03-21

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Seppo Lampainen ,  Jukka Kankkunen

IPC: B32B29/08 ,  D21H11/18 ,  D21H17/16 ,  D21H17/17 ,  D21H17/25 ,  D21H21/16 ,  D21H21/18 ,  D21H27/10 ,  D21H27/38 ,  D21H27/40

Abstract: A corrugated fiberboard comprising cellulosic fibers, wherein said corrugated fiberboard has at least one of a geometrical tensile index in the range of from 32 to 65 Nm/g, a fracture toughness index in the range of from 4 to 24 Jm/kg, and a ring crush index in the range of from 5 to 10 Nm/g5 measured at relative humidity of 85% RH; wherein the cellulosic fibers comprises a mixture of less refined fibers having a Schopper-Riegler (SR) value in the range of 15 to 28 and microfibrillated cellulose fibers, wherein mixture comprises said microfibrillated cellulose in a range of from 1% to 5% by weight of the dry content of the cellulosic fibers.