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公开(公告)号：EP3090024A1
公开(公告)日：2016-11-09
申请号：EP14815688.8
申请日：2014-12-17
申请人： Kemira OYJ
发明人： HIETANIEMI, Matti , VIRTANEN, Mikko
CPC分类号： D21H11/18 , C01P2006/22 , C01P2006/60 , C08L1/02 , C08L33/26 , C08L39/02 , C09C1/021 , D21H17/25 , D21H17/34 , D21H17/375 , D21H17/56 , D21H17/67 , D21H17/675 , D21H17/69 , D21H21/18
摘要： The present invention relates to a filler aggregate composition comprising filler particles of ground calcium carbonate (GCC); a pretreatment agent selected from polyvinylamine (PVAM) and cationic polyacrylamide (CPAM), or a mixture thereof; and a nanofibrillar cellulose (NFC); wherein said filler aggregate composition is in the form of a slurry, wherein said pretreatment agent has an average molecular weight below 6000000 g/mol and a has a charge density below 7 meq/g, determined at pH 7, and the nanofibrillar cellulose is present in an amount of about 0.1-40% of the dry weight of the filler particles. Further it also relates to its method of production, and its use in stocks, paper and paper board.
摘要翻译： 本发明涉及包含研磨碳酸钙（GCC）的填料颗粒的填料聚集体组合物; 选自聚乙烯胺（PVAM）和阳离子聚丙烯酰胺（CPAM）的预处理剂或其混合物; 和纳米纤维状纤维素（NFC）; 其中所述填料聚集体组合物为浆料的形式，其中所述预处理剂的平均分子量低于6000000g / mol，并且a具有低于7meq / g的电荷密度，在pH7下测定，并且存在纳米原纤纤维素 其量为填料颗粒干重的约0.1-40％。 此外，它还涉及其生产方法及其在库存，纸张和纸板中的用途。
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公开(公告)号：EP2978894A1
公开(公告)日：2016-02-03
申请号：EP14712698.1
申请日：2014-03-07
申请人： Kemira OYJ
发明人： VIRTANEN, Mikko
摘要： The invention relates to a process for production of paper or board comprising providing a stock comprising cellulose fibers, adding a mixture comprising microfibrillated cellulose and a strength additive to the stock, adding a microparticle to the stock after the addition of said mixture, dewatering the stock on a wire to form a web, and drying the web.
摘要翻译： 本发明涉及一种生产纸或纸板的方法，包括提供包含纤维素纤维的原料，将包含微原纤化纤维素和强度添加剂的混合物添加到原料中，在添加所述混合物之后将微粒添加到原料中，将原料脱水 在导线上形成网，并且干燥网。
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3.发明授权A METHOD FOR PROVIDING A PRETREATED FILLER COMPOSITION AND ITS USE IN PAPER AND BOARD MANUFACTURING 有权提供预填充填料组合物的方法及其在纸和板制造中的用途
公开(公告)号：EP3090099B1
公开(公告)日：2018-02-21
申请号：EP14815687.0
申请日：2014-12-17
CPC分类号： D21H17/675 , D21H11/18 , D21H17/34 , D21H17/375 , D21H17/69 , D21H21/18
摘要： The present invention relates to a method for providing a pretreated filler composition for use in paper and board manufacturing including the steps of: a) providing a filler comprising precipitated calcium carbonate, said filler being in the form of a slurry comprising no additives; b) providing at least one polymer selected from polyvinylamine or polyacrylic amide, said polymer having a charge density of an absolute value of at most 4 meq/g determined at pH 7; c) combining said at least one polymer of step b) with the filler of step a); d) providing a slurry of nanofibrillar cellulose; e) combining said nanofibrillar cellulose slurry with the formed combination of step c) and forming a pretreated filler composition comprising aggregates. Further it also relates to a pretreated filler composition prepared therefrom, and its use in stocks, paper and paper board.
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公开(公告)号：EP2804976B1
公开(公告)日：2016-03-30
申请号：EP13701810.7
申请日：2013-01-16
申请人： Kemira OYJ
CPC分类号： D21H17/375 , C01P2004/50 , C01P2004/61 , C01P2006/12 , C08K3/013 , C08K3/346 , C08K9/08 , C09C1/0081 , C09C1/0084 , C09C1/42 , C09C3/10 , D21H17/45 , D21H17/455 , D21H21/00 , D21H21/52
摘要： The invention relates to a method for producing paper, board or the like. In the method is obtained an aqueous filler dispersion, comprising particles of at least one first filler, the filler dispersion having a floc size distribution with original mean chord length value. The particles of the first mineral filler are brought into a contact with a cationic pre-treatment agent, which is capable of initiating flocculation of the filler particles in the dispersion, whereby a pre-treated filler dispersion comprising flocs, which comprise first mineral particles, is formed. The pre-treated filler dispersion is combined with a stock of fibers. The floc size distribution of the filler dispersion is changed with the pre-treatment agent, which is a natural and/or synthetic polymer, so that the mean chord length value increases at least with 2% from the original mean chord length value. The invention relates also to an agglomerate comprising at least one first mineral filler particle, a plurality of second mineral filler particles attached to at least one first filler particle by a pre-treatment agent, which is a natural and/or synthetic polymer. The average particle size by weight of the first mineral filler particles is 1.5-4.0 μm, the average particle size by weight of the second mineral filler particles is 0.5-2.4 μm, provided that the second mineral filler particles are smaller than the first mineral filler particles, and the mean chord length of the agglomerate is
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公开(公告)号：EP3516112A1
公开(公告)日：2019-07-31
申请号：EP17783901.6
申请日：2017-09-26
申请人： Kemira Oyj
发明人： HIETANIEMI, Matti , KARPPI, Asko , VIRTANEN, Mikko
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公开(公告)号：EP2978894B1
公开(公告)日：2018-05-02
申请号：EP14712698.1
申请日：2014-03-07
申请人： Kemira OYJ
发明人： VIRTANEN, Mikko
摘要： The invention relates to a process for production of paper or board comprising providing a stock comprising cellulose fibers, adding a mixture comprising microfibrillated cellulose and a strength additive to the stock, adding a microparticle to the stock after the addition of said mixture, dewatering the stock on a wire to form a web, and drying the web.
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7.发明公开METHOD FOR TREATING A FIBRE STOCK FOR MAKING OF PAPER, BOARD OR THE LIKE AND PRODUCT 有权法处理的纤维物质用于纸张，纸板生产或类似产品
公开(公告)号：EP2917406A1
公开(公告)日：2015-09-16
申请号：EP13802080.5
申请日：2013-11-12
申请人： KEMIRA OYJ
CPC分类号： D21H21/18 , D21H17/29 , D21H17/375 , D21H23/04 , D21H27/30
摘要： The invention relates to a method for treating a fibre stock for making of paper, board or the like. The method comprises obtaining a fibre thick stock and adding to the fibre thick stock at least one cationic first agent, and adding separately to the fibre stock and after the addition of the cationic first agent, at least one anionic second agent, which is an water-soluble anionic copolymer of acrylamide, methacrylamide or acrylonitrile, in such amount that the ratio of the added absolute cationic charge to the added absolute anionic charge is from 1:0.1 to 1:0.95. The invention relates also to the product prepared by using a fibre stock, which is treated by using the method.
摘要翻译： 本发明涉及的方法用于治疗纤维原料制造的纸，板或类似物。 该方法包括获得一纤维厚坯和添加到纤维厚坯的至少一种阳离子第一剂和分别加入到纤维原料和添加阳离子第一剂之后，至少一种阴离子第二试剂，所有这些是在水 的丙烯酰胺，甲基丙烯酰胺或丙烯腈 - 可溶性阴离子共聚物，在寻求量没有绝对加入阳离子电荷所添加的绝对阴离子电荷的比率为1：0.1〜1：0.95。 因此本发明涉及通过使用纤维原料制备的产物，在所有这是通过使用该方法治疗。
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公开(公告)号：EP3090024B1
公开(公告)日：2018-03-28
申请号：EP14815688.8
申请日：2014-12-17
申请人： Kemira OYJ
发明人： HIETANIEMI, Matti , VIRTANEN, Mikko
IPC分类号： C09C1/02 , D21H11/18 , D21H17/67 , D21H17/69 , D21H21/18 , C08L1/02 , D21H17/37 , C08L33/26 , C08L39/02 , D21H17/25 , D21H17/34 , D21H17/56
CPC分类号： D21H11/18 , C01P2006/22 , C01P2006/60 , C08L1/02 , C08L33/26 , C08L39/02 , C09C1/021 , D21H17/25 , D21H17/34 , D21H17/375 , D21H17/56 , D21H17/67 , D21H17/675 , D21H17/69 , D21H21/18
摘要： The present invention relates to a filler aggregate composition comprising filler particles of ground calcium carbonate (GCC); a pretreatment agent selected from polyvinylamine (PVAM) and cationic polyacrylamide (CPAM), or a mixture thereof; and a nanofibrillar cellulose (NFC); wherein said filler aggregate composition is in the form of a slurry, wherein said pretreatment agent has an average molecular weight below 6000000 g/mol and a has a charge density below 7 meq/g, determined at pH 7, and the nanofibrillar cellulose is present in an amount of about 0.1-40% of the dry weight of the filler particles. Further it also relates to its method of production, and its use in stocks, paper and paper board.
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公开(公告)号：EP2804976A1
公开(公告)日：2014-11-26
申请号：EP13701810.7
申请日：2013-01-16
申请人： Kemira OYJ
CPC分类号： D21H17/375 , C01P2004/50 , C01P2004/61 , C01P2006/12 , C08K3/013 , C08K3/346 , C08K9/08 , C09C1/0081 , C09C1/0084 , C09C1/42 , C09C3/10 , D21H17/45 , D21H17/455 , D21H21/00 , D21H21/52
摘要： The invention relates to a method for producing paper, board or the like. In the method is obtained an aqueous filler dispersion, comprising particles of at least one first filler, the filler dispersion having a floc size distribution with original mean chord length value. The particles of the first mineral filler are brought into a contact with a cationic pre-treatment agent, which is capable of initiating flocculation of the filler particles in the dispersion, whereby a pre-treated filler dispersion comprising flocs, which comprise first mineral particles, is formed. The pre-treated filler dispersion is combined with a stock of fibers. The floc size distribution of the filler dispersion is changed with the pre-treatment agent, which is a natural and/or synthetic polymer, so that the mean chord length value increases at least with 2% from the original mean chord length value. The invention relates also to an agglomerate comprising at least one first mineral filler particle, a plurality of second mineral filler particles attached to at least one first filler particle by a pre-treatment agent, which is a natural and/or synthetic polymer. The average particle size by weight of the first mineral filler particles is 1.5-4.0 μm, the average particle size by weight of the second mineral filler particles is 0.5-2.4 μm, provided that the second mineral filler particles are smaller than the first mineral filler particles, and the mean chord length of the agglomerate is
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