-
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
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
-
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
-
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
-
25.发明专利
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
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.
-
Patent Agency Ranking
公开(公告)号：ZA201906442B
公开(公告)日：2020-08-26
申请号：ZA201906442
申请日：2019-09-30
Applicant: STORA ENSO OYJ
Inventor： LAND HENSDAL CECILIA , SVENSSON ADRIANNA , BERGQVIST LIV , TRAN CARLSTRÖM AMY , AXRUP LARS
Abstract: The present invention relates to a method for manufacturing at least one layer of a film wherein the method comprises the steps of; providing a first suspension comprising microfibrillated cellulose, providing a second suspension comprising microfibrillated dialdehyde cellulose, mixing the first suspension with the second suspension to form a mixture, applying said mixture to a substrate to form a fibrous web and drying said web to form at least one layer of said film. The present invention further relates to a film comprising said at least one layer.
-
公开(公告)号：SE541631C2
公开(公告)日：2019-11-19
申请号：SE1850252
申请日：2018-03-08
Applicant: STORA ENSO OYJ
Inventor： SVENSSON ADRIANNA , BRANDÉN CARL-MAGNUS , LAND HENSDAL CECILIA , KNÖÖS ISABEL
Abstract: The present invention relates to a method for manufacturing at least one layer of a film wherein the method comprises the steps of:providing a first suspension comprising dialdehyde cellulose fibers with a first degree of oxidation;providing at least a second suspension comprising dialdehyde cellulose fibers with a second degree of oxidation which is lower than said first degree of oxidation;mixing the first suspension with the second suspension to form a mixture;mechanically treating the cellulose fibers in said mixture to microfibrillated dialdehyde cellulose;applying said mixture to a substrate to form a fibrous web; and drying said web to form at least one layer of said film.
-
公开(公告)号：SE540870C2
公开(公告)日：2018-12-11
申请号：SE1750437
申请日：2017-04-12
Applicant: STORA ENSO OYJ
Inventor： SVENSSON ADRIANNA , TRAN CARLSTRÖM AMY , LAND HENSDAL CECILIA , AXRUP LARS , BERGQVIST LIV
-
29.发明专利
公开(公告)号：PL2885458T3
公开(公告)日：2018-08-31
申请号：PL13830431
申请日：2013-08-16
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , LAND HENSDAL CECILIA , AXRUP LARS , SAXELL HEIDI
-
公开(公告)号：NZ700627A
公开(公告)日：2016-09-30
申请号：NZ70062713
申请日：2013-04-04
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , SAXELL HEIDI , AXRUP LARS , LAND HENSDAL CECILIA , JOKELA VEIKKO
Abstract: The present invention provides a method for production of cellulose ethers in a high solids process substantially without use of organic solvents as reaction and/or washing medium. In the method of the invention the first alkalization step is carried out by using high solids content cellulose pulp and solid sodium hydroxide. This is followed by an etherification step where the solids content is preferably further increased and the use of solid etherification reactant is preferred. As no organic solvents are used as reaction media the invented method enables production of cellulose ethers directly from never dried pulp with significant savings in energy and investment costs. The method is especially suitable for the production of carboxymethyl cellulose sodium salt (CMC) with low degree of substitution (DS
-
-
-
-
-
-
-
-
-
Search Results
32
records
(took 0.021 seconds)
