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    MICROPLASTIC-FREE COATED PAPER
    81.
    发明公开
    MICROPLASTIC-FREE COATED PAPER 审中-公开

    公开(公告)号：EP4311877A1

    公开(公告)日：2024-01-31

    申请号：EP22187041.3

    申请日：2022-07-26

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： Hendrix, Sandra

    IPC: D21H17/22 ,  B41M5/52 ,  D21H17/28 ,  D21H17/00 ,  D21H19/10 ,  D21H19/12

    Abstract: A printing paper comprising at least one ink receiving topcoat, wherein the ink receiving topcoat comprises a pigment composition and a binder composition, the binder composition comprising a mixture of at least one starch, and one or both of at least one protein and at least one water-soluble polymer, characterized in that the binder composition comprises the at least one protein in an amount of at least 5 weight percent, when present, and comprises the at least one water-soluble polymer in an amount of at least 2.5 weight percent, when present, based on the weight of the binder composition.

    PROCESS FOR MANUFACTURING A PRECURSOR MATERIAL
    84.
    发明公开
    PROCESS FOR MANUFACTURING A PRECURSOR MATERIAL 审中-公开

    公开(公告)号：EP3386703A1

    公开(公告)日：2018-10-17

    申请号：EP16806086.1

    申请日：2016-12-05

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： HENDRIX, Sandra ,  BALLET, Wim ,  MALETRAS, Lucile

    IPC: B29B9/14 ,  B29B7/00 ,  B29B7/16 ,  B29B7/28 ,  B29B7/90

    Abstract: A process for producing a precursor material for the manufacture of a composite material granulate, said precursor material comprising a polymer material and a fibre material, said process comprising the steps of, in this order; agitate a polymer material and a fibre material in a blending device comprising a blending means by operating the blending means at a velocity sufficient to bring about an increase of the temperature to at least a temperature beyond the VICAT softening point, or a temperature within or beyond the melting temperature range of the polymer material; b. maintain the velocity of the blending means; c. when the specific motor power needed to maintain the velocity of the blending means increases by a predetermined amount or reaches a predetermined value, reduce the velocity by a predetermined amount; d. repeat the previous step c. until the velocity falls below a first threshold value, thereby forming an intermediate material; e. comminuting the formed intermediate material in a, preferably cooled, comminuting device comprising a comminuting means by operating the comminuting means at a velocity allowing a decrease in temperature, until the temperature falls below a second threshold value, thereby forming the precursor material.

    SOLVENT EXCHANGE COMPOSITIONS
    85.
    发明公开
    SOLVENT EXCHANGE COMPOSITIONS 审中-公开
    溶剂交换组合物

    公开(公告)号：EP3310856A1

    公开(公告)日：2018-04-25

    申请号：EP16733009.1

    申请日：2016-06-16

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： BALLET, Wim ,  CANTEKIN, Seda ,  DUARTE, Gustavo ,  MOMIN, Saschi ,  SIMONS, Jo

    IPC: C08L1/02 ,  D21C9/00

    CPC classification number: C08L1/02 ,  C08J3/09 ,  C08J3/12 ,  C08J2301/02 ,  C08L2201/56

    Abstract: The present invention provides for a dispersion containing cellulose particles dispersed in a continuous liquid phase comprising a first and a second continuous liquid phase, wherein the first continuous liquid phase consists of a liquid swelling agent or an aqueous solution of said liquid swelling agent, and the second continuous liquid phase comprises, preferably consists of, one or more organic solvents, with the proviso that the one or more organic solvents of the second continuous liquid phase are not capable of dissolving cellulose, have a boiling point higher than the boiling point of the first continuous liquid phase, and are miscible with the constituents of the swelling composition.

    ACYLATION OF BIOPOLYMER COMPRISING ANHYDROGLUCOSE UNITS
    87.
    发明公开
    ACYLATION OF BIOPOLYMER COMPRISING ANHYDROGLUCOSE UNITS 审中-公开
    包含无水葡萄糖单元的生物聚合物的酰化

    公开(公告)号：EP3184549A1

    公开(公告)日：2017-06-28

    申请号：EP15202027.7

    申请日：2015-12-22

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： ENGLISH, Robert ,  GRAVESON, Ian ,  MOMIN, Saschi ,  FERLIN, Nadège

    IPC: C08B3/08 ,  C08B3/10

    CPC classification number: C08B3/08 ,  C08B3/10

    Abstract: A process for the preparation of particulate acylated biopolymer comprising anhydroglucose units, said process comprising the steps of
    a. dispersing an amount of particulate non-surface modified biopolymer comprising anhydroglucose units in an amount of a liquid alkenyl carboxylate, or of a mixture of two or more liquid alkenyl carboxylates, in order to form a first dispersion,
    b. adding a catalytic composition to the first dispersion such a to form a second dispersion,
    c. heating the second dispersion to a temperature above ambient temperature
    d. cooling the second dispersion to ambient temperature,
    e. isolating the obtained particulate acylated biopolymer,
    wherein the amount of a liquid alkenyl carboxylate, or a mixture of two or more liquid alkenyl carboxylates, corresponds to a molar excess of alkenyl carboxylate, the molar excess being defined with respect to the moles of anhydroglucose units comprised in the amount of the particulate non-surface modified biopolymer, and wherein the catalytic composition comprises an amount of one, or two or more, non-nucleophilic bases

    Abstract translation: 一种制备包含脱水葡萄糖单元的颗粒酰化生物聚合物的方法，所述方法包括以下步骤：a。 将一定量的包含脱水葡萄糖单元的颗粒状非表面改性的生物聚合物分散在一定量的液体烯基羧酸盐或两种或更多种液体烯基羧酸盐的混合物中以形成第一分散体，b。 向第一分散体中加入催化组合物以形成第二分散体，c。 将第二分散体加热至高于环境温度d的温度。 将第二分散体冷却到环境温度，例如， 分离所获得的颗粒酰化生物聚合物，其中液体烯基羧酸盐或两种或更多种液体烯基羧酸盐的混合物的量对应于摩尔过量的烯基羧酸盐，所述摩尔过量相对于包含的脱水葡萄糖单元的摩尔数 其量为所述颗粒非表面改性的生物聚合物的量，并且其中所述催化组合物包含一定量的一种或两种或更多种非亲核性碱

    Method for producing a nanocrystalline cellulose (CNC) - reinforced cellulosic fibre or filament
    89.
    发明公开
    Method for producing a nanocrystalline cellulose (CNC) - reinforced cellulosic fibre or filament 审中-公开
    Verfahren zur Herstellung von nanokristallinencelluloseverstärktenCellulosefasern oder-fäden

    公开(公告)号：EP2889399A1

    公开(公告)日：2015-07-01

    申请号：EP13199518.5

    申请日：2013-12-24

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： The designation of the inventor has not yet been filed

    IPC: D01F1/10 ,  D01F2/00

    CPC classification number: D01F2/00 ,  C08H8/00 ,  D01F1/10

    Abstract: The present invention provides for method for spinning a reinforced cellulosic fibre or filament, comprising the steps of a. at a first point in time, forming a composite spinning solution comprising a first reinforcing particle, a cellulosic base material and a process solvent, and b. at a second point in time, extruding the spinning solution through an orifice into a regeneration fluid such as to form the reinforced cellulosic fibre or filament, wherein the composite spinning solution is formed by dissolving the cellulosic base material in the process solvent and distributively dispersing the first reinforcing particle in the process solvent.

    Abstract translation: 本发明提供了一种纺丝增强纤维素纤维或细丝的方法，包括以下步骤：a。 在第一时间点，形成包含第一增强颗粒，纤维素基材和加工溶剂的复合纺丝溶液，以及b。 在第二时间点，将纺丝溶液通过孔口挤出到再生流体中以形成增强的纤维素纤维或长丝，其中复合纺丝溶液通过将纤维素基材料溶解在加工溶剂中并分散分散 在加工溶剂中的第一增强颗粒。

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