公开(公告)号：US10364297B2

公开(公告)日：2019-07-30

申请号：US15523177

申请日：2015-10-26

Applicant: Stora Enso OYJ

Inventor： Lars Axrup ,  Henri Kastinen

IPC: D21H11/18 ,  C08B1/00 ,  C08B15/00 ,  D21C9/00 ,  D21H11/20 ,  D21H15/02 ,  D21C5/00 ,  C08B15/02 ,  C08L1/02

Abstract: The present invention relates to a method for manufacturing microfibrillated polysaccharide, preferably microfibrillated cellulose. The invention also relates to microfibrillated cellulose obtainable by the method and use of the microfibrillated cellulose. The method of manufacturing microfibrillated cellulose comprises the following steps: a) Providing a hemicellulose containing pulp, b) Providing wood degrading enzymes c) Mixing pulp and enzymes d) Keeping the mixture in a continuous, flowing system of essentially cylindrical geometry (for example in a plug-flow reactor), e) Conveying the mixture to one or more mixing zones for recirculating and homogenizing the mixture, and f) Harvesting microfibrillated cellulose with a relatively narrow size distribution during the recirculation.

公开(公告)号：US20190063000A1

公开(公告)日：2019-02-28

申请号：US16076976

申请日：2017-02-10

Applicant: Stora Enso OYJ

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Teija Laukala

IPC: D21H17/67 ,  C01F11/18

Abstract: The present invention relates to crystalline and stable amorphous CaCO3 precipitated on lignocellulosic fibers.

公开(公告)号：US10214316B2

公开(公告)日：2019-02-26

申请号：US14438180

申请日：2013-10-23

Applicant: STORA ENSO OYJ

Inventor： Kimmo Nevalainen ,  Ville Ribu ,  Jurkka Kuusipalo ,  Sami Kotkamo

IPC: B65D5/56 ,  B05D1/26 ,  B05D7/00 ,  B32B27/36 ,  D21H19/28 ,  D21H19/80 ,  B29C47/02 ,  B29C47/06 ,  B29C47/92 ,  B32B7/02 ,  B32B27/08 ,  B32B27/12 ,  B32B27/30 ,  B29C47/00 ,  C08L101/16

Abstract: A biodegradable packaging material, a method of manufacturing the same, as well as products made of the material wherein a multilayer coating coextruded onto a fibrous substrate the multilayer coating comprising innermost and outermost layers of a blend comprising 20-95 wt-% of a higher melt index polylactide and 5-80 wt-% of another biodegradable polymer such as polybutylene succinate, and a middle layer containing a lower melt index polylactide alone. The goal is to increase machine speed in coextrusion while maintaining good adhesiveness to the substrate and good 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：US20190054714A1

公开(公告)日：2019-02-21

申请号：US16149556

申请日：2018-10-02

Applicant: STORA ENSO OYJ

Inventor： Jari RÄSÄNEN ,  Niilo PÖYHÖNEN ,  Mari HILTUNEN ,  Outi KYLLIÄINEN

IPC: B31B50/44

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：US10208006B2

公开(公告)日：2019-02-19

申请号：US15404996

申请日：2017-01-12

Applicant: Stora Enso Oyj

Inventor： Valery Sokolovskii ,  Vincent J. Murphy ,  Thomas R. Boussie ,  Gary M. Diamond ,  Eric L. Dias ,  Guang Zhu ,  James M. Longmire ,  Stanley Herrmann ,  Staffan Torssell ,  Mayya Lavrenko

IPC: C07D307/02 ,  C07D307/68 ,  B01J8/02

Abstract: The present disclosure provides processes for the production of 2-5-furandicarboxylic acid (FDCA) and intermediates thereof by the chemocatalytic conversion of a furanic oxidation substrate. The present disclosure further provides processes for preparing derivatives of FDCA and FDCA-based polymers. In addition, the present disclosure provides crystalline preparations of FDCA, as well as processes for making the same.

公开(公告)号：US20190040582A1

公开(公告)日：2019-02-07

申请号：US16075715

申请日：2017-02-17

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Esa Saukkonen

IPC: D21H15/02 ,  D21H17/67 ,  D21H17/68 ,  D21H21/28 ,  D21F11/02 ,  D21H19/10 ,  D21H17/35 ,  D21H27/10 ,  B65D65/38 ,  B65D85/10

Abstract: A sheet having dead-fold properties, wherein said sheet comprises cellulose fibers whereof at least 75%, preferably at least 90%, or more preferably at least 95% of said cellulose fibers have a fiber length of less than 1 mm, and wherein the tensile strength ratio (MD/CD) of the film is above 1.4, preferably higher than 1.6 and most preferably higher than 1.8.

公开(公告)号：US10196478B2

公开(公告)日：2019-02-05

申请号：US15101537

申请日：2014-12-03

Applicant: Stora Enso, OYJ

Inventor： Henri J. M. Grünbauer ,  Dimitri Areskogh

IPC: C08G18/64 ,  C07G1/00 ,  C08H7/00 ,  C08L97/00 ,  C08J9/14 ,  C08G101/00

Abstract: The present invention relates to a composition comprising a lignin polyol, a method for the manufacturing of said composition and use thereof in different application areas, such as in adhesives, binders, castings, foams (such as in rigid polyurethane and polyisocyanurate foams for thermal insulation and construction applications, semi-rigid, flexible, moulded, laminated, microcellular and viscoelastic polyurethane foams), fillers, glues, sealants, elastomers and rubbers. The present invention also relates to a method for the manufacturing of a foam and use of this foam.

公开(公告)号：US20180355557A1

公开(公告)日：2018-12-13

申请号：US15739394

申请日：2016-06-21

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Kaj Backfolk ,  Esa Tapio Saukkonen ,  Katja Eliisa Lyytikainen

IPC: D21H17/28 ,  D21H21/06 ,  D21H19/34 ,  D21H21/56 ,  D21H23/28 ,  C09D101/02 ,  C09D103/04 ,  C09D7/40

CPC classification number: D21H17/28 ,  C08L1/02 ,  C09D7/70 ,  C09D101/02 ,  C09D103/02 ,  C09D103/04 ,  D21H11/18 ,  D21H19/34 ,  D21H19/54 ,  D21H21/06 ,  D21H21/56 ,  D21H23/28

Abstract: A method for manufacturing of a film, wherein said film is manufactured in a paper or paper board machine, wherein the method comprises the steps of providing a solution of a nanofibrillated poly-saccharide, wherein said solution comprises from 0.01 to 50 weight-% nanofibrillated polysaccharide, and wherein the nanofibrillated polysaccharide is any one of microfibrillated cellulose, nanofibrillated cellulose, nanocrystalline cellulose, microcrystalline cellulose, cellulose whiskers and cellulose derivative or a combination or mixture thereof, wherein the method further comprises the steps of providing an amphiphilic polymer; and providing a mixture of said amphiphilic polymer and said solution comprising nanofibrillated polysaccharide, whereby an intermediate solution is obtained; bringing said intermediate solution into a foam; providing said foam in the paper or board machine.

公开(公告)号：US10138599B2

公开(公告)日：2018-11-27

申请号：US15535456

申请日：2015-12-14

Applicant: STORA ENSO OYJ

Inventor： Christian Aulin ,  Lars Axrup ,  Göran Flodberg ,  Magnus Hillergren ,  Tom Lindström ,  Carl-Henrik Ljungqvist ,  Göran Ström

IPC: D21H19/34 ,  D21H23/50 ,  D21H23/70 ,  D21H27/10 ,  D21H27/32 ,  D21H11/18 ,  B32B37/15 ,  B32B37/24

Abstract: The present invention relates to process for the production of a coated substrate comprising cellulosic fibers, the process comprising the steps of: i) providing a first substrate comprising cellulosic fibers and having a dry content of less than 50%; ii) applying a coating composition to the first substrate in an amount of more than 5 g/m2, calculated as dry weight of the coating composition, wherein the coating composition comprises: microfibrillated cellulose (MFC), and optionally a water retention agent selected from carboxymethyl cellulose (CMC), anionic polyacrylamide (A-PAM), sodium polyacrylates, polyacrylic acid derivatives, guar gum, alginate, MFC prepared from carboxymethylated fibers, MFC prepared from oxidized fibers, MFC prepared by CMC-functionalized fibers, and/or combinations thereof; and iii) mechanically dewatering the first substrate. The present process provides an energy efficient coating process which can be performed online.

公开(公告)号：US20180327973A1

公开(公告)日：2018-11-15

申请号：US15774231

申请日：2016-11-08

Applicant: Stora Enso OYJ

Inventor： Simo Siitonen ,  Kimmo Nevalainen

IPC: D21H21/22 ,  D21H17/66 ,  D21H17/68 ,  D21H17/33 ,  D21H17/67 ,  D21H17/24 ,  D21H17/22 ,  D21H11/18 ,  D21H27/30 ,  D21J1/00 ,  D21H27/10 ,  D21H21/52 ,  B65D81/26 ,  B65D85/10

CPC classification number: D21H21/22 ,  B65D81/264 ,  B65D85/1045 ,  D21H11/18 ,  D21H17/22 ,  D21H17/24 ,  D21H17/33 ,  D21H17/66 ,  D21H17/675 ,  D21H17/68 ,  D21H21/52 ,  D21H27/10 ,  D21H27/30 ,  D21J1/00

Abstract: An active moisture control material comprising a fiber based material and at least one active additive, wherein said active additive is adapted to control moisture transfer in the active moisture control material, and wherein said moisture control material is produced in a paper or board making process, wherein the active additive is incorporated into said active moisture control material.