公开(公告)号：SE1951259A1

公开(公告)日：2021-05-05

申请号：SE1951259

申请日：2019-11-04

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA ,  NYLÉN OTTO

IPC: D21H11/18 ,  B32B27/06 ,  B32B29/02 ,  B65D65/40 ,  B82Y30/00 ,  C08L29/04 ,  C09D101/00 ,  C09D101/02 ,  C09D103/00 ,  C09D105/00 ,  C09D129/04 ,  D21H19/00 ,  D21H19/10 ,  D21H19/12 ,  D21H19/20 ,  D21H19/34 ,  D21H19/82

Abstract: A barrier material comprising (a) at least one layer of cellulosic substrate comprising MFC, and (b) a first barrier layer arranged on at least one surface of said cellulosic substrate, is provided, as well as a method for reducing the water vapour transmission rate (WVTR) of a cellulosic substrate.

公开(公告)号：CA3140757A1

公开(公告)日：2021-01-07

申请号：CA3140757

申请日：2020-06-30

Applicant: STORA ENSO OYJ

Inventor： JANSSON ULLA ,  MOBERG ANDERS ,  BACKFOLK KAJ

IPC: D21H11/18 ,  C08L1/02 ,  D21C9/00 ,  D21D1/00 ,  D21D5/00 ,  D21H21/18 ,  D21H21/52

Abstract: The present invention relates to a refined cellulose fiber composition useful as a strength enhancing agent for paper and paperboard, wherein the refined cellulose fiber composition has a Schopper-Riegler (SR) number in the range of 80-98 as determined by standard ISO 5267-1, and wherein the refined cellulose fiber composition has a content of fibers having a length >0.2 mm of at least 12 million fibers per gram based on dry weight. The invention further relates to a method for preparing the refined cellulose fiber composition and to pulp paper and paperboard comprising the refined cellulose fiber composition.

公开(公告)号：SE1950730A1

公开(公告)日：2020-12-18

申请号：SE1950730

申请日：2019-06-17

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  LYYTIKÄINEN KATJA ,  BACKFOLK KAJ ,  NYLÉN OTTO

IPC: D21H11/18 ,  B32B27/06 ,  C08J5/18 ,  C08L1/02 ,  D21H17/41 ,  D21H17/66

Abstract: A method for the production of a fibrous product from a fibrous web, wherein the method comprises the steps of:providing a fibrous suspension comprising native microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is in the range of 40 to 99.9 weight-% based on total dry solid content, said fibrous suspension further comprising organic acid, a metal salt or a mixture thereof, wherein the amount of organic acid, metal salt or mixture thereof is at least 2 weight-% based on total dry solid content of the suspension,- said fibrous suspension also comprising an uncharged, amphoteric or weakly cationic polymer having a molecular weight of at least 50000 g/mol,- said fibrous suspension also comprising an anionic polymer having a molecular weight of at least 10000 g/mol to said suspension, - providing said suspension to a substrate to form a fibrous web, wherein the amount of uncharged, amphoteric or weakly cationic polymer in said suspension is in the range of 0.1 to 20 kg/metric ton based on total dry solid content and wherein the amount of anionic polymer in said suspension is in the range of 0.01 to 10 kg/metric ton based on total dry solid content; and- dewatering said fibrous web to form a fibrous product.

公开(公告)号：PL2534302T3

公开(公告)日：2020-10-19

申请号：PL11741965

申请日：2011-02-11

Applicant: STORA ENSO OYJ

Inventor： BACKFOLK KAJ ,  HEISKANEN ISTO ,  MIIKKI NINA

IPC: D21H21/54 ,  D21H17/00 ,  D21H17/60 ,  D21H17/65 ,  D21H17/66 ,  D21H19/44 ,  D21H21/16 ,  D21H23/56

公开(公告)号：SE542671C2

公开(公告)日：2020-06-23

申请号：SE1750877

申请日：2017-07-05

Applicant: STORA ENSO OYJ

Inventor： SAUKKONEN ESA ,  HEISKANEN ISTO ,  BACKFOLK KAJ

IPC: B01F23/00 ,  B01F23/47 ,  B01F33/80

Abstract: A method of dosing a nanocellulose suspension in gel phase into a second suspension, wherein the method comprises the steps of: providing said nanocellulose suspension in gel phase; providing said second suspension; bringing said nanocellulose suspension in gel phase in contact with said second suspension; wherein the method comprises a step of subjecting said nanocellulose suspension in gel phase to a shear rate of more than 500 1/s, simultaneously with and/or immediately prior to the step of bringing said nanocellulose suspension in gel phase and said second suspension in contact with each other.

公开(公告)号：SE542631C2

公开(公告)日：2020-06-23

申请号：SE1751391

申请日：2017-11-10

Applicant: STORA ENSO OYJ

Inventor： BACKFOLK KAJ ,  HIRSILÄ PAULA ,  RIBU VILLE

Abstract: The present invention is directed to a packaging material, more specifically a packaging material having gas and/or moisture barrier properties, wherein the material comprises a barrier material comprising a layer comprising at least 50% of a zinc ionomer, a layer of polyethylene and a layer that forms a gas barrier. The invention is also directed to packaging products using said barrier material. Such products are in particular packages suitable for cosmetics and personal care products.

公开(公告)号：SE1851645A1

公开(公告)日：2020-06-22

申请号：SE1851645

申请日：2018-12-21

Applicant: STORA ENSO OYJ

Inventor： CUNHA GISELA ,  HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA

IPC: C08J5/18 ,  B32B29/00 ,  B82Y30/00 ,  D21H11/18 ,  D21H17/66 ,  D21H19/10

Abstract: Methods are provided for preparing a surface-treated fibrous material comprising nanocellulose, in which a fibrous material is surface treated with a solution comprising at least one multivalent metal ion. Fibrous materials as such are also provided. Improved Water vapour Transmission rate (WVTR) properties can be achieved.

公开(公告)号：SE542388C2

公开(公告)日：2020-04-21

申请号：SE1850123

申请日：2018-02-02

Applicant: STORA ENSO OYJ

Inventor： NYBERG ZETTERLUND ANNA ,  SAUKKONEN ESA ,  HEISKANEN ISTO ,  LIF JAN ,  KANKKUNEN JUKKA ,  BACKFOLK KAJ

IPC: D21H21/52 ,  D21H11/18 ,  D21H17/00 ,  D21H19/00 ,  D21H21/14 ,  D21H23/28

Abstract: The present invention relates to a process for manufacturing a film comprising high amounts of microfibrillated cellulose (MFC), having haptic properties. According to the present invention, a wet web comprising MFC is formed, followed by addition of particles having an average diameter of at least 1 μm to the wet web, followed by dewatering and/or drying. The wet web may be formed for example by wet laid or cast forming methods. The particles may be added to the wet web for example by cast coating or spraying.

公开(公告)号：ES2746125T3

公开(公告)日：2020-03-04

申请号：ES15845606

申请日：2015-09-30

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  GAIDELIS VALENTAS ,  SIDARAVICIUS JONAS

IPC: B01D61/42 ,  B01D35/06 ,  C07G1/00 ,  C08L9/00 ,  D21C11/00

Abstract: Proceso para retirar azufre, usando deshidratación, de una suspensión que comprende una lignina, en donde el proceso comprende las siguientes etapas: a) proporcionar una suspensión que comprende lignina, b) someter la suspensión a un campo eléctrico que induce el flujo del líquido y las moléculas, especies o componentes polares del mismo, tales como iones, de la suspensión, opcionalmente combinados con una fuerza de presión y/o una fuerza de succión, c) separar el líquido de la lignina, obteniendo de ese modo una lignina purificada agotada líquida, opcionalmente en forma de suspensión.

公开(公告)号：SE541755C2

公开(公告)日：2019-12-10

申请号：SE1750219

申请日：2017-03-01

Applicant: STORA ENSO OYJ

Inventor： SAUKKONEN ESA ,  HEISKANEN ISTO ,  BACKFOLK KAJ

IPC: C08J5/18 ,  C08K3/34 ,  C08K3/36 ,  C08L1/02 ,  D21H11/18 ,  D21H17/68 ,  D21H19/40 ,  D21H19/52 ,  D21H21/10 ,  D21H21/52

Abstract: The present invention relates to a new process for improving runnability and dimensional stability when manufacturing a film comprising high amounts of microfibrillated cellulose (MFC) without negatively impacting the film properties. According to the present invention a high amount of nanoparticles or microparticles is used as an additive, optionally together with a polymer.