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公开(公告)号：WO2020183383A1
公开(公告)日：2020-09-17
申请号：PCT/IB2020/052132
申请日：2020-03-11
Applicant: STORA ENSO OYJ
Inventor： ARESKOGH, Dimitri
Abstract: The present invention is directed to a process to produce agglomerated lignin with a controlled particle size distribution. The agglomerated lignin is essentially free of dust so that the risk of dust explosion is greatly reduced.
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公开(公告)号：WO2020165780A1
公开(公告)日：2020-08-20
申请号：PCT/IB2020/051112
申请日：2020-02-12
Applicant: STORA ENSO OYJ
Inventor： KAZEMAHVAZI, Sohrab , JANSSON, Ulla , WEDIN, Irene , PENG, Frank
Abstract: The invention discloses a method for producing a three dimensional molded product from cellulose fibers, comprising the steps of: -providing a cellulose fiber composition comprising 1-30wt% lignin, said cellulose fiber composition further having a solid content between 0.1-95%; -providing a forming tool having a three dimensional shape including a forming surface, and bringing said forming surface into contact with the cellulose fiber composition; and -press drying the cellulose fiber composition contacted by the forming tool at temperatures >200°C to a dry content of at least 70%. The invention also relates to a three dimensional fiber based product obtainable by means of said method.
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公开(公告)号：WO2020115667A1
公开(公告)日：2020-06-11
申请号：PCT/IB2019/060419
申请日：2019-12-04
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN, Isto , HILTUNEN, Mari , RUOHONIEMI, Nina , LAMMI, Titta , RIBU, Ville , LINDFORS, Tim , RÄSÄNEN, Jari
Abstract: The present invention relates to a web of fibrous cellulosic material derived from wood pulp, said web being suitable for three-dimensional moulding to form a packaging product, wherein the web comprises >40wt% of soft wood chemical pulp and at least one strength enhancement agent, wherein the web has a grammage less than 400g/m 2 , and wherein the cellulose fibers of said soft wood chemical pulp comprise a fiber curl of >9%.
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公开(公告)号：WO2020099967A1
公开(公告)日：2020-05-22
申请号：PCT/IB2019/059266
申请日：2019-10-29
Applicant: STORA ENSO OYJ
Inventor： MIIKKI, Nina , BACKFOLK, Kaj
Abstract: A surface treatment composition comprising nanocellulose –such as microfibrillated cellulose (MFC) –and particles is provided. The particles comprise a supporting material and an active material comprising a salt of a multivalent metal.Various products comprising such a surface treatment composition and methods using said compositions are also provided.
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公开(公告)号：WO2020075057A1
公开(公告)日：2020-04-16
申请号：PCT/IB2019/058547
申请日：2019-10-08
Applicant: STORA ENSO OYJ
Inventor： HANSSON, Susanne
Abstract: The present invention relates to a method for manufacturing at least one fibrous barrier layer wherein the method comprises the steps of: providing a suspension comprising intermixed microfibrillated cellulose (MFC) and microfibrillated dialdehyde cellulose(DA-MFC); addingpolyvinyl alcohol (PVOH) to said suspension and mix to form a mixture; applying said mixture to a substrate to form a wet fibrous web;and drying said wet web on said substrate to form a fibrous barrier layer.
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Patent Agency Ranking
公开(公告)号：WO2020075056A1
公开(公告)日：2020-04-16
申请号：PCT/IB2019/058546
申请日：2019-10-08
Applicant: STORA ENSO OYJ
Inventor： KNÖÖS, Isabel
Abstract: The present invention relates to a method for manufacturing at least one fibrous barrier layer wherein the method comprises the steps of: providing a suspension comprising intermixed microfibrillated cellulose (MFC) and microfibrillated dialdehyde cellulose (DA-MFC); adding at least one inorganic pigment to said suspension and intermix to form a mixture; applying said mixture to a substrate to form a wet fibrous web; and drying said wet web on said substrate to form a fibrous barrier layer. It also relates to a fibrous barrier layer comprising microfibrillated dialdehyde cellulose, microfibrillated cellulose and at least one inorganic pigment.
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公开(公告)号：WO2020070631A1
公开(公告)日：2020-04-09
申请号：PCT/IB2019/058322
申请日：2019-10-01
Applicant: STORA ENSO OYJ
Inventor： RIBU, Ville , NEVALAINEN, Kimmo , TORISEVA, Juuso , SUOKAS, Esa , KUUSIPALO, Jurkka
Abstract: The present invention relates to a paper or paperboard comprising a polymeric coating, said polymeric coating comprising: a first coating layer attached to the paper or paperboard surface, said first coating layer comprising a blend of: a high density polyethylene (HDPE), medium density polyethylene (MDPE) or linear low density polyethylene (LLDPE), or a mixture thereof, and a low density polyethylene (LDPE); and a second coating layer attached to the first coating layer, said second coating layer consisting essentially of a low density polyethylene (LDPE); wherein the first and second coating layers have a combined grammage of less than 12 g/m 2 . The present invention relates to a method for manufacturing a polyethylene (PE) coated paper or paperboard substrate.
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公开(公告)号：WO2020058803A1
公开(公告)日：2020-03-26
申请号：PCT/IB2019/057603
申请日：2019-09-10
Applicant: STORA ENSO OYJ
Inventor： LAND HENSDAL, Cecilia , KNÖÖS, Isabel
Abstract: The present invention relates to a method for manufacturing at least one layer of a film characterized by that 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, in which mixture less than 5% of the anhydroglucose units (AGU) of the total cellulose present therein comprise a dialdehyde, 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 of film.
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公开(公告)号：WO2020016241A1
公开(公告)日：2020-01-23
申请号：PCT/EP2019/069146
申请日：2019-07-16
Applicant: STORA ENSO OYJ , PAQUES I.P. B.V.
Inventor： VAN ZESSEN, Erik , NOORDINK, Michel Paulus Maria , WADSBORN, Rickard , TIMONEN, Olli , BJÖRK, Maria , KOTILAINEN, Ari
Abstract: The present invention relates to a process for the controlling the sodium and sulfur levels in a pulp mill, comprising the steps of: a) providing a pulp mill stream comprising sulfide and having a total alkali concentration of at least 2 Molar; b) supplying a portion of the pulp mill stream to a reactor comprising sulfide oxidizing bacteria and removing sulfide from the pulp mill streamby subjecting said stream to sulfide oxidizing bacteria in the presence of oxygen, and at a pH in the range 8 to 11, to oxidize the sulfide to elemental sulfur, c) withdrawing from the reactor a treated pulp mill stream comprising sulfur, wherein the portion of the pulp mill stream is mixed with a portion of the sulfide oxidizing bacteria present in the reactor prior to supplying the pulp mill stream to the reactor in step b).
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公开(公告)号：WO2020003129A1
公开(公告)日：2020-01-02
申请号：PCT/IB2019/055350
申请日：2019-06-25
Applicant: STORA ENSO OYJ
Inventor： LAMPAINEN, Seppo , PENG, Frank , LAAKSO, Atso , MÄÄTTÄNEN, Ari-Pekka
IPC: B32B29/08 , B65D65/40 , D21H11/02 , D21H11/08 , D21H11/10 , D21H27/10 , D21H27/30 , D21H27/40 , D21H11/18 , D21H17/28 , D21H17/42 , D21H17/44 , D21H21/18
Abstract: The invention relates to a ply of a linerboard for corrugated board, which ply exhibits high strength properties and which enables the production of lightweight linerboards. The ply of the invention comprises 20 –80 wt % CTMP from wood fibers and 80 –20 wt% chemical pulp, calculated on the total fiber weight of said ply and strength additives chosen from the group of microfibrillated cellulose (MFC), anionic or cationic polymers and starchor combinations thereof. The ply exhibits a geometric SCT index of above 22 Nm/g and a density of below 680 kg/m 3 , preferably of below 650 kg/m 3.
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