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1.发明公开METHOD AND INTERMEDIATE FOR THE PRODUCTION OF HIGHLY REFINED OR MICROFIBRILLATED CELLULOSE 有权VERFAHREN UND ZWISCHENPRODUKTE ZUR HERSTELLUNG VON HOCHRAFFERIERTER ODER MIKROFIBRILLIERTE CELLULOSE
公开(公告)号：EP2885458A4
公开(公告)日：2016-04-20
申请号：EP13830431
申请日：2013-08-16
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , LAND HENSDAL CECILIA , AXRUP LARS , SAXELL HEIDI
CPC classification number: D21H17/74 , C08L1/02 , C08L2205/16 , C12P19/04 , C12P19/14 , D21C5/005 , D21C9/002 , D21C9/005 , D21C9/007 , D21C9/18 , D21H11/18 , D21H17/005 , D21H17/675
Abstract: A method for the production of highly refined or microfibrillated 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 mechanical means to obtain the final product. Dried cellulosic pulp is produced as an intermediate product of the method, having an average 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.
Abstract translation: 一种用于生产高度精制或微纤化纤维素（MFC）的方法，包括以下步骤：处理纤维素纤维以去除纤维的主壁的至少主要部分，干燥经处理的纤维，再处理经处理的纤维，以及分解 润湿纤维通过机械手段获得最终产品。 干纤维素浆是作为该方法的中间产物生产的，其平均纤维长度至少为0.4mm，而少于天然未处理纤维的主壁材料的50％留在中间产品中。 代替运送大量稀释的MFC分散体，本发明可以将干燥的中间产物运输到MFC最终用户，MFC最终用户将通过使用标准的分解装置将中间产物转化成最终的MFC来完成该方法。
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公开(公告)号：EP2941442A4
公开(公告)日：2016-08-10
申请号：EP13870221
申请日：2013-12-30
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , KASTINEN HENRI , KAUPPI ANNA , KANKKUNEN JUKKA , AXRUP LARS , LAND HENSDAL CECILIA , SAXELL HEIDI , BACKFOLK KAJ
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公开(公告)号：EP3161009A4
公开(公告)日：2018-02-21
申请号：EP15812520
申请日：2015-06-23
Applicant: STORA ENSO OYJ
Inventor： SAXELL HEIDI , RANTAMÄKI PAULA , EKMAN KALLE
Abstract: The present invention relates to a method for manufacturing cellulose carbamate which method comprises the following steps: providing a never-dried pulp, adding urea and mixing said pulp with said urea, mechanically treating said mixture, drying the mixture, and heating the relatively dry mixture thus providing a cellulose carbamate. The present invention also relates to a cellulose carbamate obtainable by said method, use of said cellulose carbamate and a dope comprising said cellulose carbamate.
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4.发明公开
公开(公告)号：EP2989247A4
公开(公告)日：2016-11-23
申请号：EP14788480
申请日：2014-04-22
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , SAUKKONEN ESA , BACKFOLK KAJ , KAUPPI ANNA , SAXELL HEIDI , LYYTIKÄINEN KATJA
CPC classification number: D21H21/30 , C08L1/02 , C08L2205/16 , D21H11/04 , D21H11/18 , D21H17/375 , D21H17/42 , D21H21/28 , C08L33/26
Abstract: The invention relates to a process for treating cellulose fibres which process comprises the steps of providing a slurry comprising cellulose fibers, adding anionic polyacrylamide (A-PAM) with high molar mass to the slurry in a first step and subjecting the slurry comprising fibers and A-PAM to a mechanical treatment in a second step thereby forming a composition comprising microfibrillated cellulose. The invention further relates to a composition produced according to the process.
Abstract translation: 本发明涉及用于处理纤维素纤维，该方法包括提供浆料包含纤维素纤维的步骤的过程中，加入阴离子聚丙烯酰胺（A-PAM）与高摩尔质量，以在第一步骤中的浆料，使所述浆料包含纤维和 PAM以在第二步骤中机械处理，由此形成组合物，包含微纤化纤维素。 本发明还涉及到雅丁所述的工艺生产的组合物。
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5.发明公开A METHOD OF PRODUCING OXIDIZED OR MICROFIBRILLATED CELLULOSE 审中-公开VERFAHREN ZUR HERSTELLUNG VON OXIDIERTER ODER MIKROFIBRILLIERTER CELLULOSE
公开(公告)号：EP3022357A4
公开(公告)日：2017-03-15
申请号：EP14825900
申请日：2014-07-11
Applicant: STORA ENSO OYJ
Inventor： HILTUNEN JAAKKO , HEISKANEN ISTO , SAXELL HEIDI , KAHELIN JUKKA , SAHARINEN ERKKI
Abstract: The invention relates to a method of producing oxidized or microfibrillated cellulose (MFC). According to the invention there is provided an aqueous pulp suspension with a consistency of at least 15%, and at least one oxidant is added to the suspension to oxidize cellulosic hydroxyl groups in the suspension under mechanical mixing or shearing. The oxidized suspension, washed and diluted to a lower consistency, is subjected to homogenization to yield gel-like MFC. Alkali hypochlorite may be used as oxidant, and preferred mediating oxidation catalysts are AZADO and TEMPO. Alkali bromide may be used as a cocatalyst. The MFC product, which as a suspension has an increased viscosity, is suitable as a means of regulating viscosity or for production of films and composites.
Abstract translation: 本发明涉及一种生产氧化或微纤化纤维素（MFC）的方法。 根据本发明，提供了至少15％的稠度的水性纸浆悬浮液，并且在悬浮液中加入至少一种氧化剂以在机械混合或剪切下氧化悬浮液中的纤维素羟基。 将经过洗涤并稀释至较低浓度的氧化悬浮液进行均化以产生凝胶状MFC。 碱性次氯酸盐可以用作氧化剂，优选的介导氧化催化剂是AZADO和TEMPO。 碱性溴化物可用作助催化剂。 作为悬浮液具有增加的粘度的MFC产品适合作为调节粘度或用于生产膜和复合材料的手段。
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Patent Agency Ranking
公开(公告)号：EP2917403A4
公开(公告)日：2016-05-04
申请号：EP13853497
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
CPC classification number: D01F2/00 , C08L1/04 , D21C9/007 , D21C9/06 , D21C9/18 , D21H11/18 , F26B3/36
Abstract: A method for drying nanofibrillated polysaccharide to obtain a substantially dry nanofibrillated polysaccharide product, comprising the following steps: (i) providing an aqueous suspension of nanofibrillated polysaccharide; (ii) increasing the solid content of said suspension, thereby forming a high solid content microfibrillated cellulose suspension; and (iii) drying said high solid content microfibrillated cellulose suspension, through a simultaneous heating and mixing operation.
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7.发明公开METHOD FOR FORMING AND SUBSEQUENTLY DRYING A COMPOSITE COMPRISING A NANOFIBRILLATED POLYSACCHARIDE 审中-公开方法用于生产和从NANOFIBRILLIERTEN多糖复合材料的后续干燥
公开(公告)号：EP2917402A4
公开(公告)日：2016-06-01
申请号：EP13853320
申请日：2013-11-06
Applicant: STORA ENSO OYJ
Inventor： AXRUP LARS , SAXELL HEIDI , JOKELA VEIKKO , KASTINEN HENRI , KAUPPI ANNA , BACKFOLK KAJ , RUOHONIEMI NINA , LAITINEN RISTO , HEISKANEN ISTO , LAUKALA TEIJA
CPC classification number: D21H17/675 , C08B15/02 , C08K3/26 , C08K2003/265 , C08L2205/16 , D21H11/18 , D21H17/24 , D21H17/64 , D21H17/67 , C08L1/04
Abstract: A method for the production of a composite material comprising nanofibrillated polysaccharide, the method comprising the following steps: (i) providing a liquid suspension of the nanofibrillated polysaccharide; (ii) bringing said liquid suspension in contact with at least one additive, thereby forming a composite material suspension, wherein the composite comprises the nanofibrillated polysaccharide and the at least one additive, (iii) increasing the solid contents of said composite material suspension, thereby forming a high solid contents composite material suspension.
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8.发明公开METHOD FOR THE PREPARATION OF CELLULOSE ETHERS WITH A HIGH SOLIDS PROCESS, PRODUCT OBTAINED AND USES OF THE PRODUCT 有权用于生产纤维素醚在用这种方法制成的产品高固国有股法律程序和本产品的用途
公开(公告)号：EP2834275A4
公开(公告)日：2015-12-02
申请号：EP13772103
申请日：2013-04-04
Applicant: STORA ENSO OYJ
Inventor： SAXELL HEIDI , HEISKANEN ISTO , AXRUP LARS , LAND HENDSDAL 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
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公开(公告)号：CA2918182C
公开(公告)日：2021-11-09
申请号：CA2918182
申请日：2014-07-11
Applicant: STORA ENSO OYJ
Inventor： HILTUNEN JAAKKO , HEISKANEN ISTO , SAXELL HEIDI , KAHELIN JUKKA , SAHARINEN ERKKI
Abstract: The invention relates to a method of producing oxidized or microfibrillated cellulose (MFC). According to the invention there is provided an aqueous pulp suspension with a consistency of at least 15 %, and at least one oxidant is added to the suspension to oxidize cellulosic hydroxyl groups in the suspension under mechanical mixing or shearing. The oxidized suspension, washed and diluted to a lower consistency, is subjected to homogenization to yield gel-like MFC. Alkali hypochlorite may be used as oxidant, and preferred mediating oxidation catalysts are AZADO and TEMPO. Alkali bromide may be used as a cocatalyst. The MFC product, which as a suspension has an increased viscosity, is suitable as a means of regulating viscosity or for production of films and composites.
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公开(公告)号：CA2869287C
公开(公告)日：2020-08-04
申请号：CA2869287
申请日：2013-04-04
Applicant: STORA ENSO OYJ
Inventor： SAXELL HEIDI , HEISKANEN ISTO , 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
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