公开(公告)号：US10683616B2

公开(公告)日：2020-06-16

申请号：US16067985

申请日：2017-01-05

Applicant: Stora Enso OYJ

Inventor： Philip Håkansson ,  Isto Heiskanen

IPC: D21H23/04 ,  D21H17/67 ,  D21H27/18 ,  C01F11/18 ,  D21H23/14 ,  D21H11/18 ,  D21H17/25 ,  D21H17/69 ,  D21H21/18

Abstract: The invention provides a method for the production of a composite comprising microfibrillated cellulose (MFC) and precipitated calcium carbonate. The method is characterized in that MFC is added to a suspension of calcium hydroxide during carbonation, whereby calcium carbonate is precipitated onto fibers or fibrils of the MFC in a controlled manner. By adding microfibrillated cellulose to the calcium suspension during the carbonation, the brightness and the strength of the MFC/PCC-composite is enhanced. Moreover, the inventive method facilitates the distribution of calcium dioxide and MFC in the suspension and thus gives rise to a more homogenous product.

公开(公告)号：US10676868B2

公开(公告)日：2020-06-09

申请号：US15759089

申请日：2016-09-16

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Kaj Backfolk ,  Esa Saukkonen ,  Nina Ruohoniemi ,  Katja Lyytikainen

IPC: D21H11/18 ,  D21H21/20 ,  B29D7/01 ,  C08J5/18 ,  D21C9/00 ,  D21H11/20

Abstract: The present invention relates to a method for manufacturing a film having an oxygen transmission rate in the range of from 1 cc/m2/24 h to 500 cc/m2/24 h according to ASTM D-3985, at a relative humidity of more than 50% at 25° C., or higher than 75% at 25° C., or higher than 85% at 25° C., wherein the method comprises the steps of: providing a first suspension comprising a microfibrillated cellulose, wherein the dry content of the suspension is in the range of from 0.1 to 10% by weight, adding a wet strength additive to said first suspension, at an amount of from 0.1 to 10 weight-% based on the amount of microfibrillated cellulose (dry/dry), thereby forming a mixture of the microfibrillated cellulose and the wet strength additive, applying said mixture to a substrate to form a fibrous web and drying said web to form said film. The present invention also relates to a film produced according to the method.

公开(公告)号：US10654819B2

公开(公告)日：2020-05-19

申请号：US16552096

申请日：2019-08-27

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: C07D307/68 ,  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：US10604656B2

公开(公告)日：2020-03-31

申请号：US13825222

申请日：2011-09-19

Applicant: Janne Pynnönen ,  Matti Myyryläinen ,  Duncan Mayes ,  Jouko Silen

Inventor： Janne Pynnönen ,  Matti Myyryläinen ,  Duncan Mayes ,  Jouko Silen

IPC: C08L97/02 ,  B27N3/28 ,  B27N3/00

Abstract: The invention concerns an extruded composite containing wood fibre material and polymer. The wood fibre material is wood material where the knot or branch content is at least 10 w-%, or bark, or would material into which extract material obtained by extracting knots, branches or bark has been absorbed. The amount of the polymer is 5-25% from the weight of the composite. The composite has high hardness, and reduced moisture absorption and swelling properties. It can be used as constructional material.

公开(公告)号：US20200079004A1

公开(公告)日：2020-03-12

申请号：US16469805

申请日：2017-12-14

Applicant: Stora Enso OYJ

Inventor： Jari Räsänen ,  Ville Ribu ,  Kimmo Nevalainen ,  Nina Miikki ,  Mari Hiltunen ,  Outi Kylliäinen ,  Mika Kainusalmi ,  Panu Tanninen

IPC: B29C59/04 ,  B31F1/07 ,  B29C48/08 ,  B29C59/02

Abstract: The present invention is in the technical field of packages, specifically surfaces of materials used for packages, and the manufacture thereof. According to the present invention, a micropattern is created on at least surface of a substrate, to obtain a material suitable for manufacturing packages.

公开(公告)号：US20200071883A1

公开(公告)日：2020-03-05

申请号：US16679660

申请日：2019-11-11

Applicant: Kaj Backfolk ,  Isto Heiskanen ,  Nina Miikki

Inventor： Kaj Backfolk ,  Isto Heiskanen ,  Nina Miikki

IPC: D21H17/66 ,  D21H17/60 ,  D21H17/00

Abstract: A surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt of a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced.

公开(公告)号：US10577805B2

公开(公告)日：2020-03-03

申请号：US15537039

申请日：2015-12-14

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Duncan Mayes ,  Simo Siitonen

IPC: E04F13/02 ,  C09D101/02 ,  D21H11/18 ,  C04B26/28 ,  D21H27/20 ,  C09D197/02 ,  B05D1/02 ,  D21H27/18

Abstract: The present invention relates to a method for applying a wallpaper material onto a surface comprising the steps of providing a liquid suspension comprising cellulosic fibers wherein at least part of said cellulosic fibers comprises microfibrillated cellulose and wherein said liquid suspension has a dry content of at least 10% by weight, applying at least one layer of said liquid suspension onto the surface, drying said liquid suspension layer after it has been applied onto the surface, and thereby forming a dry fiber web layer, wherein said fiber web layer forms said wallpaper material.

公开(公告)号：US20200023627A1

公开(公告)日：2020-01-23

申请号：US16471983

申请日：2017-12-21

Applicant: Stora Enso OYJ

Inventor： Isto Heiskanen ,  Esa Saukkonen

IPC: B32B29/02 ,  D21C9/18

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, 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 micro fibrillated cellulose, applying the second suspension either to the first side of the fibrous web or to a surface of a drying equipment and conducting said fibrous web through the drying equipment whereby the second suspension is added 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：US20200023409A1

公开(公告)日：2020-01-23

申请号：US16481688

申请日：2017-01-30

Applicant: Stora Enso OYJ

Inventor： Lars Axrup ,  Isabel Knöös ,  Christian Aulin ,  Magnus Hillergren ,  Tom Lindström ,  Göran Ström

IPC: B05D7/04 ,  B05D1/38 ,  B05D7/00 ,  C08J5/18 ,  C09D101/02 ,  B05D1/02 ,  B05D1/30

Abstract: The method of the invention relates to a method of manufacturing a fibrous, oxygen barrier film by casting a suspension comprising microfibrillated cellulose onto a non-porous substrate in a number of subsequent steps with intermediate drying. The invention enables an efficient method to manufacture an MFC film by casting technology without the problems of cracks or voids formed in the film. By applying the MFC in several layers, with in-between drying, the distance the water has to diffuse through is shorter, whereby the evaporation is more efficient and the film properties are not negatively affected by the drying.

公开(公告)号：US10442780B2

公开(公告)日：2019-10-15

申请号：US16264188

申请日：2019-01-31

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.