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公开(公告)号：WO2019110865A1
公开(公告)日：2019-06-13
申请号：PCT/FI2017/050856
申请日：2017-12-04
Applicant: UPM-KYMMENE CORPORATION
Inventor： VIRTANEN, Pasi , RISTOLAINEN, Matti , KOSONEN, Harri , MODIG, Sakari , POHJALAINEN, Teemu
CPC classification number: C08J5/06
Abstract: The application relates to a fiber reinforced composition comprising a reinforcing constituent of fibers embedded in a polymer matrix, wherein the fibers are fibers of cellulose carbamate, hemicellulose carbamate, or their combination, and wherein the fiber reinforced composition comprises 5 –98 weight-% of the reinforcing constituent of fibers based on the total weight of the fiber reinforced composition. The present application further relates to a method for producing a fiber reinforced composition and to the use of the fiber reinforced composition.
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公开(公告)号：WO2019110864A1
公开(公告)日：2019-06-13
申请号：PCT/FI2017/050855
申请日：2017-12-04
Applicant: UPM-KYMMENE CORPORATION
Inventor： RISTOLAINEN, Matti , KOSONEN, Harri , VIRTANEN, Pasi , POHJALAINEN, Teemu , MODIG, Sakari
CPC classification number: C08J5/06 , C08J2323/06 , C08J2323/10 , C08J2325/06 , C08J2367/02 , D06M11/77
Abstract: The application relates to a fiber reinforced composition comprising a reinforcing constituent of fibers embedded in a polymer matrix, wherein the fibers are plant-based fibers, which have been coated with a silicate layer, and wherein the fiber reinforced composition comprises 5 –98 weight-% of the reinforcing constituent of fibers based on the total weight of the fiber reinforced composition. The application further relates to a method for producing a reinforcing constituent of fibers, to a reinforcing constituent of fibers,to fibers, and to different uses.
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公开(公告)号：WO2023047018A1
公开(公告)日：2023-03-30
申请号：PCT/FI2022/050627
申请日：2022-09-19
Applicant: UPM-KYMMENE CORPORATION
Inventor： RISTOLAINEN, Matti , KOSONEN, Harri , MODIG, Sakari , VIRTANEN, Pasi , SAPKOTA, Janak , POHJALAINEN, Teemu , AJDARY, Rubina , REYES, Guillermo , ROJAS, Orlando
Abstract: A process for preparing an alkaline cellulose dope is disclosed. The process may comprise providing a cellulose material and a cold alkaline solution, and dispersing and dissolving the cellulose material in the cold alkaline solution, thereby obtaining the alkaline cellulose dope, wherein the cellulose material is dispersed and dissolved in the cold alkaline solution in conditions in which the absorption and/or dissolution of CO2 in the alkaline cellulose dope is reduced, and/or CO2 dissolved and/or the concentration of carbonate ions in the cellulose material and the cold alkaline solution and/or in the alkaline cellulose dope is reduced or removed at least partially, such that the concentration of carbonate ions in the alkaline cellulose dope is reduced.
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公开(公告)号：WO2022101551A1
公开(公告)日：2022-05-19
申请号：PCT/FI2021/050762
申请日：2021-11-10
Applicant: UPM-KYMMENE CORPORATION
Inventor： SAPKOTA, Janak , POHJALAINEN, Teemu , VIRTANEN, Pasi , KOSONEN, Harri , MODIG, Sakari , RISTOLAINEN, Matti
Abstract: A method for preparing esterified cellulose and/or hemicellulose is disclosed. The method may comprise mixing an anhydride mixture and cellulose and/or hemicellulose, thereby obtaining an esterification mixture, such that the anhydride mixture esterifies the cellulose and/or hemicellulose at least partially, thereby forming the esterified cellulose and/or hemicellulose; and wherein the anhydride mixture is obtainable or obtained by reacting a fatty acid with a short-chain acid anhydride in the presence of an acid catalyst, such that an initial anhydride mixture is obtained, wherein the initial anhydride mixture comprises a mixed anhydride having a fatty acyl group and a short-chain acyl group, a portion of the short-chain acid anhydride, and a short-chain acid and optionally a fatty acid anhydride having two fatty acyl groups; and removing the short-chain acid, the short-chain acid anhydride and optionally water and/or impurities present in the initial anhydride mixture at least partially from the initial anhydride mixture, thereby obtaining the anhydride mixture.
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