Surface treatment composition
    57.
    发明专利

    公开(公告)号:SE1851421A1

    公开(公告)日:2020-05-15

    申请号:SE1851421

    申请日:2018-11-14

    Applicant: STORA ENSO OYJ

    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.

    processo para produção de uma composição compreendendo celulose fibrilada e referida composição

    公开(公告)号:BR112012028844B1

    公开(公告)日:2020-02-11

    申请号:BR112012028844

    申请日:2011-05-11

    Applicant: STORA ENSO OYJ

    Abstract: processo para produção de uma composição compreendendo celulose fibrilada e referida composição. a presente invenção está correlacionada a um processo para produção de uma composição, cujo processo compreende o pretratamento de fibras celulósicas através de tratamento mecânico, químico e/ou enzimático, misturando as fibras celulósicas previamente tratadas com pigmentos, formando assim uma dispersão, e dispersandno a dita dispersão de fibras celulósicas previamente tratadas e pigmento, pelo que é então formada uma composição compreendendo celulose microfibrilada. a invenção se refere ainda a uma composição produzida de acordo com o presente processo.

    Coating composition for paper and paperboard

    公开(公告)号:SE1850586A1

    公开(公告)日:2019-11-19

    申请号:SE1850586

    申请日:2018-05-18

    Applicant: STORA ENSO OYJ

    Abstract: The present invention relates to a coating composition for coating of paper or paperboard, said composition comprising: a pigment, a binder, an optical brightening agent (OBA), a colorant, and a sugar alcohol, and to paper or paperboard coated with at least one layer of the coating composition. The present invention further relates to a method for preparing said coating composition and to an OBA premix useful in the method of preparing the coating composition, said premix comprising an OBA, a sugar alcohol, and optionally a colorant, wherein the OBA and sugar alcohol together make up at least 10 % by weight, preferably at least 20 % by weight, based on the total weight of solids in the premix.

    PROCESS FOR TREATING CELLULOSE AND CELLULOSE TREATED ACCORDING TO THE PROCESS

    公开(公告)号:CA2835302C

    公开(公告)日:2019-10-22

    申请号:CA2835302

    申请日:2012-05-11

    Applicant: STORA ENSO OYJ

    Abstract: The present invention relates to a process for purifying a slurry comprising cellulose, such as microfibrillated cellulose, wherein the process comprises the following steps: - providing a slurry comprising cellulose and liquid, - subjecting the slurry to an electric field inducing the liquid of the slurry to flow, - separating the liquid from the cellulose thus obtaining a liquid depleted slurry, - adding a washing liquid, such as an organic solvent, to the liquid depleted slurry - subjecting the liquid depleted slurry to an electric field inducing the washing liquid of the slurry to flow and - separating the washing liquid from the cellulose, thus obtaining a purified cellulose. The invention also relates to cellulose such as microfibrillated cellulose obtainable from said process.

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