中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

407 records (took 0.025 seconds)

    Method for manufacturing a composition comprising microfibrillated cellulose
    131.
    发明专利
    Method for manufacturing a composition comprising microfibrillated cellulose 未知

    公开(公告)号：SE1850231A1

    公开(公告)日：2019-09-03

    申请号：SE1850231

    申请日：2018-03-02

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  HÅKANSSON PHILIP

    IPC: D21H11/18 ,  C04B12/04 ,  C08B15/08 ,  C08L1/02

    Abstract: The invention discloses a method to form a composition, which method includes fibrillating fibers to form MFC in the presence of an alkali-metal silicate whereby an MFC and silicate mixture is formedThe presence of alkali-metal silicate during fibrillation of fibers to MFC, reduces the viscosity and increases the water release behavior, whereby the fibrillation can be accomplished at higher concentrations and a more uniform mixture of MFC - silicate is accomplished.The composition formed by the method of the invention may e.g. be used in paper or paperboard production, in cement production or as an additive in composites.

    Packaging material with barrier properties
    132.
    发明专利
    Packaging material with barrier properties 未知

    公开(公告)号：SE1751391A1

    公开(公告)日：2019-05-11

    申请号：SE1751391

    申请日：2017-11-10

    Applicant: STORA ENSO OYJ

    Inventor： BACKFOLK KAJ ,  HIRSILÄ PAULA ,  RIBU VILLE

    IPC: B32B27/00 ,  B32B27/06 ,  B32B27/08 ,  B32B27/10 ,  B32B27/34 ,  B65D65/38

    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.

    Method for manufacturing a heat-sealable packaging material and a heat-sealable packaging material made by the method
    135.
    发明专利
    Method for manufacturing a heat-sealable packaging material and a heat-sealable packaging material made by the method 未知

    公开(公告)号：SE541012C2

    公开(公告)日：2019-02-26

    申请号：SE1651732

    申请日：2016-12-22

    Applicant: STORA ENSO OYJ

    Inventor： BONNERUP CHRIS ,  BACKFOLK KAJ

    IPC: D21H19/82 ,  B32B23/06 ,  B32B27/10 ,  B65D65/40 ,  C09D109/10

    Abstract: Method for manufacturing a packaging material and a packaging material made by the methodThe invention relates to a method of manufacturing a heat-sealable packaging material, the method comprising the steps of: providing a paperboard substrate comprising a top ply, applying a first dispersion barrier layer on the top ply, wherein the first dispersion barrier layer comprises a latex having a first glass transition temperature, and applying a second dispersion barrier layer on the first barrier layer, wherein the second dispersion barrier layer comprises a latex having a second glass transition temperature, wherein the second glass transition temperature is higher than the first glass transition temperature, wherein the grammage of the second dispersion barrier layer is lower than the grammage of the first dispersion barrier layer, and wherein the second dispersion barrier layer comprises pigments. The invention further relates to a respective heat-sealable packaging material.

    A METHOD TO PRODUCE A FILM COMPRISING MICROFIBRILLATED CELLULOSE AND AN AMPHOTERIC POLYMER
    136.
    发明专利
    A METHOD TO PRODUCE A FILM COMPRISING MICROFIBRILLATED CELLULOSE AND AN AMPHOTERIC POLYMER 未知

    公开(公告)号：ZA201800795B

    公开(公告)日：2018-12-19

    申请号：ZA201800795

    申请日：2018-02-07

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ

    Abstract: A method for the production of a film from a fibrous web, wherein the method comprises the steps of: providing a fibrous suspension comprising a microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is in the range of 60 to 99.9 weight-% based on total dry solid content, adding an amphoteric polymer to said suspension to provide a mixture of said microfibrillated cellulose and said amphoteric polymer, providing said mixture to a substrate to form a fibrous web, wherein the amount of amphoteric polymer in said mixture is in the range of 0.1 to 20 kg/metric ton based on total dry solid content; and dewatering said fibrous web to form a film having a basis weight of less than 40 g/m2 and a density in the range of from 700 to 1000 kg/m3.

    FLEXIBLE MICROFIBRILLATED FILM FORMATION
    137.
    发明专利
    FLEXIBLE MICROFIBRILLATED FILM FORMATION 未知

    公开(公告)号：ZA201800741B

    公开(公告)日：2018-12-19

    申请号：ZA201800741

    申请日：2018-02-05

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  LYYTIKÄINEN KATJA

    Abstract: A method of manufacturing a film comprising microfibrillated cellulose, wherein the method comprises the steps of: providing a first suspension comprising microfibrillated cellulose, having a dry content of from 0.2 to 2.0%, wherein the first suspension has a first Schopper-Riegler (SR) value; forming a first web of said suspension; at least partly dewatering said first web; applying a second suspension comprising microfibrillated cellulose, and/or fines and/or fibers onto a surface of said formed and at least partially dried first web, wherein the second suspension has a second Schopper-Riegler value which is higher than said first Schopper-Riegler value, thereby forming a film.

    A method of producing microfibrillated cellulose
    138.
    发明专利
    A method of producing microfibrillated cellulose 未知

    公开(公告)号：FI127682B

    公开(公告)日：2018-12-14

    申请号：FI20135016

    申请日：2013-01-04

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN ISTO ,  KASTINEN HENRI ,  KAUPPI ANNA ,  KANKKUNEN JUKKA ,  AXRUP LARS ,  LAND HENSDAL CECILIA ,  SAXELL HEIDI ,  BACKFOLK KAJ

    IPC: D21D1/20 ,  C08B15/08 ,  D21B1/04 ,  D21C9/00 ,  D21C9/18 ,  D21H11/18 ,  D21H17/00

    Abstract: The invention relates to methods of producing microfibrillated cellulose (MFC). According to the invention a fibrous pulp suspension is fibrillated mechanically at a consistency of less than 12.5 %, dewatered to raise the consistency of the fibrillated suspension to at least 12.5 %, and then subjected in the dewatered condition to further fibrillation. Alternatively an initially fibrillated fibrous pulp suspension may be dewatered and fibrillated in the dewatered condition, after which these dewatering and fibrillating steps are repeated one or more times so that pulp consistency is increased for each fibrillation step. The goals of raising the consistency between subsequent fibrillations are energy saving and an increased aspect ratio in MFC. The invention even comprises uses of the MFC product, e.g. as an additive for papermaking furnish or injection molded plastic composites.

Patent Agency Ranking