公开(公告)号：SE542065C2

公开(公告)日：2020-02-18

申请号：SE1751617

申请日：2017-12-21

Applicant: STORA ENSO OYJ

Inventor： CUNHA GISELA ,  SAXELL HEIDI

IPC: D01F2/24 ,  C07C45/00 ,  C08B15/02 ,  C08B15/08 ,  C08B15/10 ,  C08L1/04 ,  D01D5/06 ,  D21H11/16

Abstract: A method is provided for preparing a fibrous material of crosslinked microfibrillated cellulose. Dialdehyde microfibrillated cellulose is spun into a fibrous material; and then said fibrous material is post-treated (by reduction of pH) to provide crosslinking between the dialdehyde microfibrillated cellulose. Fibrous materials such as filaments or mats, and polymer composites comprising such materials are also described.

公开(公告)号：SE541680C2

公开(公告)日：2019-11-26

申请号：SE1751615

申请日：2017-12-21

Applicant: STORA ENSO OYJ

Inventor： CUNHA GISELA ,  SAXELL HEIDI

IPC: C08L1/16 ,  C08B5/00 ,  C08B15/08 ,  C08B15/10 ,  C08J5/18 ,  D01D5/00 ,  D01F2/24 ,  D21H11/16

Abstract: A method is provided for preparing a fibrous material of crosslinked microfibrillated cellulose. Phosphorylated microfibrillated cellulose is formed into a fibrous material; and then said fibrous material is post-treated (e.g. by heat-treatment) to provide crosslinking between the phosphorylated microfibrillated cellulose. Fibrous materials such as filaments, mats or films, and hygiene products comprising such materials are also described.

公开(公告)号：SE1900067A1

公开(公告)日：2019-06-22

申请号：SE1900067

申请日：2017-12-21

Applicant: STORA ENSO OYJ

Inventor： CUNHA GISELA ,  SAXELL HEIDI

IPC: C08L1/16 ,  C08B5/00 ,  C08B15/08 ,  C08B15/10 ,  C08J5/18 ,  D01D5/00 ,  D01F2/24 ,  D21H11/16

Abstract: A method is provided for preparing a film of crosslinked microfibrillated cellulose.Phosphorylated microfibrillated cellulose is cast or wet-laid into a film; and then said film is post-treated (e.g. by heat-treatment) to provide crosslinking between the phosphorylated microfibrillated cellulose. Films and hygiene products comprising such films are also described.

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.

公开(公告)号：PL2917403T3

公开(公告)日：2018-11-30

申请号：PL13853497

申请日：2013-10-30

Applicant: STORA ENSO OYJ

Inventor： BACKFOLK KAJ ,  SAXELL HEIDI ,  HEISKANEN ISTO ,  AXRUP LARS ,  LAND HENSDAL CECILIA ,  JOKELA VEIKKO ,  SAUKKONEN ESA ,  KOTILAINEN ARI ,  KASTINEN HENRI ,  KAUPPI ANNA

IPC: D21H11/18 ,  C08L1/04 ,  D21C9/06 ,  D21C9/18 ,  F26B3/36

公开(公告)号：BR112015016087A2

公开(公告)日：2017-07-11

申请号：BR112015016087

申请日：2013-12-30

Applicant: STORA ENSO OYJ

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

IPC: C08B15/08 ,  C08L1/04 ,  D21D1/20 ,  D21D1/30 ,  D21H11/18

公开(公告)号：BR112015010582A2

公开(公告)日：2017-07-11

申请号：BR112015010582

申请日：2013-11-06

Applicant: STORA ENSO OYJ

Inventor： AXRUP LARS ,  BACKFOLK KAJ ,  HEISKANEN ISTO ,  JOKELA VEIKKO ,  KASTINEN HENRI ,  KAUPPI ANNA ,  LAITINEN RISTO ,  LAUKALA TEIJA ,  RUOHONIEMI NINA ,  SAXELL HEIDI

IPC: C08B15/02 ,  C08L1/04 ,  D21H11/18 ,  D21H17/64 ,  D21H17/67

公开(公告)号：SE537949C2

公开(公告)日：2015-12-01

申请号：SE1350512

申请日：2013-04-25

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  SAUKKONEN ESA ,  BACKFOLK KAJ ,  KAUPPI ANNA ,  SAXELL HEIDI ,  LYYTIKÄINEN KATJA

IPC: D21H11/18 ,  C08B11/15 ,  D21H11/20 ,  D21H17/37 ,  D21H17/55

公开(公告)号：FI20135016A

公开(公告)日：2014-07-05

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: D21B1/04 ,  D21D1/20 ,  D21C9/18 ,  D21H11/18

公开(公告)号：CA2881332A1

公开(公告)日：2014-02-27

申请号：CA2881332

申请日：2013-08-16

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  LAND HENSDAL CECILIA ,  AXRUP LARS ,  SAXELL HEIDI

IPC: D21H11/18 ,  C08L1/02 ,  D21B1/34 ,  D21B1/38 ,  D21C9/00 ,  D21C9/18

Abstract: The invention concerns a method for the production of highly refined or micro- fibrillated cellulose (MFC), comprising the steps of treating cellulosic fibres to remove at least a major part of the primary wall of the fibres, drying the treated fibres, rewetting the treated fibres, and disintegrating the wetted fibres by me- chanical means to obtain the final product. The invention further concerns dried cellulosic pulp as an intermediate product of the method, having an aver- age fibre length of at least 0.4 mm, while less than 50 % of the primary wall material of natural untreated fibres is left in the intermediate product. Instead of transporting large amounts of dilute MFC dispersion the invention enables transport of the dry intermediate product to the MFC end user, who would complete the process by turning the intermediate product to final MFC by use of standard disintegrating devices.