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121. 发明申请

US20200056333A1 PROCESS FOR PROVIDING COATING LAYER COMPRISING MICRO FIBRILLATED CELLULOSE 审中-公开
公开(公告)号：US20200056333A1
公开(公告)日：2020-02-20
申请号：US16345982
申请日：2017-10-26
申请人： Stora Enso OYJ
发明人： Kaj Backfolk , Isto Heiskanen , Esa Saukkonen
IPC分类号： D21H19/34 , D21H23/50 , D21H27/10 , D21J1/08
摘要： The present invention relates to a new process for providing a coating layer on a moulded article comprising fibers. In the present invention, a coating dispersion is prepared that comprises microfibrillated cellulose (MFC), a slip aid and at least one hydrocolloid.

122. 发明授权

US10240288B2 Method of producing microfibrillated cellulose 有权
公开(公告)号：US10240288B2
公开(公告)日：2019-03-26
申请号：US14758708
申请日：2013-12-30
申请人： Stora Enso OYJ
发明人： Isto Heiskanen , Henri Kastinen , Anna Kauppi , Jukka Kankkunen , Lars Axrup , Cecilia Land Hensdal , Heidi Saxell , Kaj Backfolk
IPC分类号： D21C9/00 , D21H11/18 , D21H17/00 , D21H11/04 , C08B15/08 , C08L1/04 , D21D1/20
摘要： 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.

123. 发明申请

US20180355248A1 A GROUND COVER MULCH COMPRISING A MICROFIBRILLATED POLYSACCHARIDE 审中-公开
公开(公告)号：US20180355248A1
公开(公告)日：2018-12-13
申请号：US15779158
申请日：2016-11-25
申请人： STORA ENSO OYJ
发明人： Kaj Backfolk , Isto Heiskanen , Carl-Mikael Tag , Ville Ribu
IPC分类号： C09K17/52 , C05G3/02 , C05G3/04 , D21H15/10 , D21H21/36 , D21H21/28 , D21H17/67 , D21H19/52 , A01G13/02
CPC分类号： C09K17/52 , A01G13/0275 , C05G3/02 , C05G3/04 , D21H11/18 , D21H15/10 , D21H17/67 , D21H19/34 , D21H19/52 , D21H21/16 , D21H21/28 , D21H21/36 , D21H27/30
摘要： The present invention relates to a ground cover in the form of a mulch, comprising a microfibrillated polysaccharide. Also methods for its manufacture and use thereof are disclosed.

124. 发明申请

US20170305949A1 A METHOD OF PURIFYING LIGNIN BY SUBJECTING A SLURRY COMPRISING LIGNIN TO AN ELECTRIC FIELD 审中-公开
公开(公告)号：US20170305949A1
公开(公告)日：2017-10-26
申请号：US15516281
申请日：2015-09-30
申请人： Stora Enso OYJ
发明人： Isto Heiskanen , Kaj Backfolk , Valentas Gaidelis , Jonas Sidaravicius
IPC分类号： C07G1/00 , D21C11/00 , C08H7/00
CPC分类号： C07G1/00 , C08H6/00 , D21C11/00 , D21C11/0007
摘要： The present invention relates to a process for purifying, such as salt/ion depletion, and/or ash reduction,and/or sulphur removal, and/or free sugar depletion,and/or VOC depletion or fractionating,preferably by using dewatering, of a slurry comprising a lignin or lignin derivative or a combination thereof. A lignin or lignin derivative obtainable from said process and uses thereof are also disclosed.

125. 发明授权

US09562328B2 Method for forming a subsequently drying a composite comprising a nanofibrillated polysaccharide 有权
标题翻译：形成随后干燥包含纳米纤维化多糖的复合材料的方法
公开(公告)号：US09562328B2
公开(公告)日：2017-02-07
申请号：US14441268
申请日：2013-11-06
申请人： Stora Enso Oyj
发明人： Lars Axrup , Heidi Saxell , Veikko Jokela , Henri Kastinen , Anna Kauppi , Kaj Backfolk , Nina Ruohoniemi , Risto Laitinen , Isto Heiskanen , Teija Laukala
IPC分类号： D21H17/67 , C08B15/02 , D21H11/18 , D21H17/64 , C08K3/26
CPC分类号： D21H17/675 , C08B15/02 , C08K3/26 , C08K2003/265 , C08L2205/16 , D21H11/18 , D21H17/24 , D21H17/64 , D21H17/67 , C08L1/04
摘要： 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.
摘要翻译：一种制备包含纳米纤维化多糖的复合材料的方法，所述方法包括以下步骤：（i）提供纳米纤维化多糖的液体悬浮液; （ii）使所述液体悬浮液与至少一种添加剂接触，从而形成复合材料悬浮液，其中复合材料包含纳米纤维化多糖和至少一种添加剂，（iii）增加所述复合材料悬浮液的固体含量，从而形成高固体含量的复合材料悬浮液。

126. 发明申请

US20160153144A1 A METHOD OF PRODUCING OXIDIZED OR MICROFIBRILLATED CELLULOSE 审中-公开
标题翻译：生产氧化或微晶纤维素的方法
公开(公告)号：US20160153144A1
公开(公告)日：2016-06-02
申请号：US14905463
申请日：2014-07-11
申请人： STORA ENSO OYJ
发明人： Jaakko Hiltunen , Isto Heiskanen , Heidi Saxell , Jukka Kahelin , Erkki Saharinen
IPC分类号： D21H11/20 , C08B15/02 , D21C9/00
摘要： 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.
摘要翻译：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。将氧化悬浮液洗涤并稀释至较低浓度，进行均化，得到凝胶状MFC。碱性次氯酸盐可以用作氧化剂，优选的介质氧化催化剂是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。

127. 发明公开

US20240240408A1 MULTIPLY CONTAINERBOARD FOR USE IN CORRUGATED BOARD 审中-公开
公开(公告)号：US20240240408A1
公开(公告)日：2024-07-18
申请号：US18559421
申请日：2022-05-13
申请人： Stora Enso OYJ
发明人： Isto Heiskanen , Jukka Kankkunen
IPC分类号： D21H27/40 , B32B29/00 , B32B29/08 , D21F11/04 , D21H11/04 , D21H11/06 , D21H21/16 , D21H21/18 , D21H27/10 , D21H27/38
CPC分类号： D21H27/40 , B32B29/005 , B32B29/08 , D21F11/04 , D21H11/04 , D21H11/06 , D21H21/16 , D21H21/18 , D21H27/10 , D21H27/38 , B32B2250/03 , B32B2250/26 , B32B2553/00
摘要： The present invention relates to a multiply containerboard for use in corrugated board, said multiply containerboard comprising: a first outer ply, a second outer ply, and at least one intermediate ply sandwiched between the first and second outer ply, wherein said first and second outer ply comprise at least 70 wt % neutral sulfite semi chemical (NSSC) pulp based on dry weight, and wherein said intermediate ply comprises at least 30 wt % unbleached kraft pulp based on dry weight and at least one cellulose based strength enhancement agent, and wherein said intermediate ply comprises less than 30 wt % NSSC pulp based on dry weight.

128. 发明公开

US20240240406A1 MULTIPLY CONTAINERBOARD FOR USE IN CORRUGATED BOARD 审中-公开
公开(公告)号：US20240240406A1
公开(公告)日：2024-07-18
申请号：US18559422
申请日：2022-05-13
申请人： Stora Enso OYJ
发明人： Isto Heiskanen , Jukka Kankkunen
IPC分类号： D21H27/10 , D21H11/04 , D21H11/06 , D21H17/25 , D21H17/28 , D21H21/10 , D21H21/16 , D21H21/18 , D21H27/40
CPC分类号： D21H27/10 , D21H11/04 , D21H11/06 , D21H17/25 , D21H17/28 , D21H21/10 , D21H21/16 , D21H21/18 , D21H27/40
摘要： The present invention relates to a multiply containerboard for use in corrugated board, said multiply containerboard comprising: a first outer ply comprising a strength enhancement agent, a second outer ply comprising a strength enhancement agent, and an interfacial layer joining said first and second outer ply, wherein each of said first and second outer ply comprise at least 50 wt % neutral sulfite semi chemical (NSSC) pulp based on dry weight, and wherein said interfacial layer comprises a strength enhancement agent in an amount of 0.5-20 gsm wherein the amount of strength enhancement agent in the interfacial layer is higher, preferably at least twice as high as the concentration of the strength enhancement agent in each of the first and second outer ply.

129. 发明公开

US20240191435A1 METHOD FOR MANUFACTURING A BARRIER FILM, AND A BARRIER FILM 审中-公开
公开(公告)号：US20240191435A1
公开(公告)日：2024-06-13
申请号：US18555328
申请日：2022-04-13
申请人： Stora Enso OYJ
发明人： Kaj Backfolk , Isto Heiskanen , Matthias Krätschell , Cecilia Land Hensdal
IPC分类号： D21H19/12 , B29C43/24 , B29K1/00 , D21H11/18 , D21H19/72 , D21H25/06
CPC分类号： D21H19/12 , B29C43/24 , D21H11/18 , D21H19/72 , D21H25/06 , B29K2001/00 , B29K2995/0069 , B29K2995/0077 , B29K2995/0097
摘要： The present invention relates to a process for manufacturing a barrier film, wherein the method comprises: —providing an aqueous suspension comprising at least 70 weight-% highly refined cellulose pulp having an SR value of 70-95 and having a content of fibers having a length>0.2 mm of at least 10 million fibers per gram based on dry weight: —forming a wet web; —dewatering and/or drying to form a substrate; —calendering said substrate in at least a first calender nip and a second calender nip; —providing said substrate with at least one first layer of a barrier chemical to form a coated substrate, wherein each first layer has a coat weight of 0.5-5 gsm, and wherein a total coat weight on of the first layers is ≤8 gsm, and—drying to form said barrier film having a thickness of

130. 发明授权

US11999132B2 Heat sealable packaging material comprising microfibrillated cellulose and products made therefrom 有权
公开(公告)号：US11999132B2
公开(公告)日：2024-06-04
申请号：US16500033
申请日：2018-03-28
申请人： Stora Enso OYJ
发明人： Kaj Backfolk , Isto Heiskanen , Esa Saukkonen , Jukka Kankkunen , Ville Ribu , Kimmo Nevalainen
IPC分类号： B32B15/085 , B32B15/20 , B32B27/10 , B65D65/40 , B65D65/42 , C08J5/18 , D21H11/18 , D21H19/04 , D21H19/08 , D21H19/22 , D21H19/82 , D21H19/84 , D21H27/10
CPC分类号： B32B15/085 , B32B15/20 , B32B27/10 , B65D65/40 , B65D65/42 , C08J5/18 , D21H11/18 , D21H19/04 , D21H19/08 , D21H19/22 , D21H19/824 , D21H19/84 , D21H27/10 , B32B2307/7244 , B32B2439/70 , C08J2323/06
摘要： The present invention is directed to a packaging material comprising a layer of microfibrillated cellulose (MFC) and an aluminum layer having a thickness of 0.1-20 μm, wherein the layer comprising MFC and/or the aluminum layer has been laminated or extrusion coated on at least one side with a thermoplastic polymer and wherein the amount of aluminum is sufficient to make the packaging material heat sealable by induction. The MFC layer contains at least 60% by weight of microfibrillated cellulose.

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