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.

公开(公告)号：US10167594B2

公开(公告)日：2019-01-01

申请号：US14438139

申请日：2013-10-28

Applicant: STORA ENSO OYJ

Inventor： Kimmo Nevalainen ,  Ville Ribu

IPC: D21J1/08 ,  D21H23/22 ,  B05D1/26 ,  B05D7/00 ,  B32B27/10 ,  B32B27/36 ,  D21H27/10 ,  D21H19/20 ,  D21H19/28 ,  D21H19/82 ,  B32B37/15 ,  B65D65/46 ,  B32B27/08 ,  B32B27/12 ,  B32B27/30 ,  A47G19/22 ,  B65D1/34 ,  B65D5/62 ,  B65D25/14 ,  B32B27/18

Abstract: A biodegradable packaging material, a method of manufacturing the same, as well as products made of the material wherein the manufacture comprises extrusion onto a fibrous substrate one or mote polymer coating layers including at least one layer of a polymer blend consisting of (i) 20-95 wt-% of polylactide having a high melt index of more than 35 g/10 min (210° C.; 2.16 kg), (ii) 5-80 wt-% of polybutylene succinate (PBS) or a biodegradable derivate thereof, and (iii) 0-5 wt-% of one or more polymeric additives. The components of the blend are melted and blended in connection with the extrusion step. The goal is to improve extrudability, increase machine speed in extrusion and maintaining good adhesiveness to the substrate and wood heat-sealability of the coating. The products include disposable drinking cups and board trays, as well as sealed carton packages for solids and liquids.

公开(公告)号：US20180346813A1

公开(公告)日：2018-12-06

申请号：US15779131

申请日：2016-11-25

Applicant: STORA ENSO OYJ

Inventor： Kaj Backfolk ,  Elina Skerfe ,  Isto Heiskanen

IPC: C09K17/52 ,  C09K17/50 ,  A01G13/02

CPC classification number: A01G13/02 ,  C09K17/52 ,  D21H19/38 ,  D21H27/00

Abstract: The invention relates to a ground cover in the form of a mulch, comprising a paper substrate originating from fibre-bearing pulp, preferably emanating from lignocellulosic material, which has been web-formed or sheet-formed. Paper based mulches face problems with biodegradability and microbial attacks, mechanical strength and cost. The solution according to the invention is that the fibres have been coated with one or more minerals, e.g., calcium carbonate, and the mulch comprises one or more functional agents, e.g., a colorant. Further, the mineral coated onto or into the fibres predominantly show up when precipitated in the form of one or more metal carbonates.

公开(公告)号：US10145068B2

公开(公告)日：2018-12-04

申请号：US15307485

申请日：2015-04-29

Applicant: Stora Enso OYJ

Inventor： Hallgren Hans ,  Frank Peng ,  Anders Moberg ,  Hans Höglund ,  Gunilla Pettersson ,  Sven Norgren

IPC: D21F3/02 ,  D21H11/08 ,  D21H11/10 ,  D21H17/26 ,  D21H17/29 ,  D21H21/18

Abstract: The present invention relates to a process for producing at least one ply of a paper or board product wherein a web comprising mechanical and/or chemimechanical pulp and at least one dry strength additive is dried in a press drying process by subjecting the web to heat and an overpressure of above 40 kPa. The present invention also relates to a paper product, a paperboard product and a ply produced according to the process.

公开(公告)号：US20180326620A1

公开(公告)日：2018-11-15

申请号：US15776305

申请日：2016-11-16

Applicant: Stora Enso OYJ

Inventor： JOHAN KALLSTROM ,  Fredrik Kallstrom ,  Martin Malmqvist ,  Roger Bergstrom ,  Conny Johansson ,  Maria Tornblom ,  Sofi Karlsson

IPC: B29B9/06

CPC classification number: B29B9/06 ,  B27N1/02 ,  B29C70/12 ,  B29K2101/12 ,  B29K2105/0005 ,  B29K2511/14 ,  D21H11/08

Abstract: The present invention relates to a process for the manufacturing of composite materials from natural fibers and thermoplastic polymers. Examples of fibers are wood fibers originating from pulping processes known as refiner pulp (RMP), thermomechanical pulp (TMP) or chemi-thermomechanical pulp (CTMP), but the process can also be applied to other kinds of natural fiber containing raw materials. In the process according to the present invention, fibers are introduced from the blowline or the housing of a refiner into a flash tube dryer, separated from humid air in a cyclone, introduced into a compounder and mixed with at least one thermoplastic polymer and the product is subsequently pelletized. The process according to the present invention is advantageously run as a continuous process.

公开(公告)号：US10118360B2

公开(公告)日：2018-11-06

申请号：US14385011

申请日：2013-03-15

Applicant: STORA ENSO OYJ

Inventor： Jari Räsänen ,  Niilo Pöyhönen ,  Mari Hiltunen ,  Outi Kylliäinen

IPC: B65D1/34 ,  B31B49/02 ,  B65D1/26 ,  B65D75/32 ,  B31B50/44 ,  B29C51/24 ,  B29C51/08 ,  B29L31/00 ,  B29K311/12 ,  B29C51/22 ,  B31B50/59

Abstract: A deep-drawn paper tray made of paper material, a method and an apparatus for manufacturing the tray, and a closed product package comprising the tray. The tray having a bottom and upwardly expanding side walls around the bottom, the side walls of the tray being shaped to expand through a plurality of circumferential steps dimensioned low enough for obtaining wrinkle-free side walls for the tray. The outermost step is a flat, wrinkle-free rim flange, which enables liquid and gas proof heat-sealing of a lid to form the package. The apparatus may comprise upper and lower moulding tools with concentric movable frames for forming the tray bottom and side wall steps from paper blanks, and moulding tools may be mounted onto a rotating turret carrying a paper blank through working stations arranged along the turret circumference, to shape the tray bottom and the side wall steps at the consecutive stations.

公开(公告)号：US20180305844A1

公开(公告)日：2018-10-25

申请号：US15766470

申请日：2016-10-06

Applicant: Stora Enso OYJ

Inventor： Niklas Garoff ,  Robert Protz ,  Jens Erdmann ,  Johannes Ganster ,  Andre Lehmann

IPC: D01F9/17 ,  C08L1/02 ,  C08L97/00 ,  D01D5/06 ,  D01F2/02

CPC classification number: D01F9/17 ,  C08L1/02 ,  C08L97/00 ,  C08L97/005 ,  C08L2203/12 ,  D01D5/06 ,  D01F2/02 ,  D01F9/00 ,  D01F9/16 ,  D10B2201/00

Abstract: The present invention relates to a method for manufacturing a shaped body comprising lignin which may be further processed into intermediate carbon fibers and finally also carbon fibers. Uses of said fibers are also disclosed. The present invention addresses the problem of lignin leaching into a precipitation bath. The solution to this problem is a novel method for minimizing the loss of lignin through the addition of certain salts into the precipitation bath.

公开(公告)号：US10085350B2

公开(公告)日：2018-09-25

申请号：US14375147

申请日：2013-01-30

Applicant: STORA ENSO OYJ

Inventor： Juha Maijala ,  Petri Sirviö

IPC: H05K3/14 ,  H05K1/03 ,  B05B1/30 ,  B05B5/16 ,  B05B17/06 ,  B05B12/18 ,  B05B9/00 ,  B05B15/00 ,  H05K3/38 ,  B05B5/14

CPC classification number: H05K3/14 ,  B05B1/30 ,  B05B5/14 ,  B05B5/1608 ,  B05B12/18 ,  B05B17/0607 ,  B05B17/0615 ,  H05K1/038 ,  H05K1/0386 ,  H05K3/381 ,  H05K2203/0278 ,  H05K2203/111 ,  H05K2203/1121 ,  H05K2203/1344 ,  H05K2203/1545

Abstract: A method and an arrangement are disclosed for transferring electrically conductive material in fluid form onto a substrate. Said substrate is preheated to a first temperature, and of said electrically conductive material there is produced fluid electrically conductive material. The fluid electrically conductive material is sprayed onto the preheated substrate to form a pattern of predetermined kind. The substrate onto which said fluid electrically conductive material was sprayed is cooled to a third temperature, which is lower than the melting point of said electrically conductive material.