中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

105 records (took 0.031 seconds)

    SUPERCRITICAL CO2 CELLULOSE SPRAYDRYING
    51.
    发明公开
    SUPERCRITICAL CO2 CELLULOSE SPRAYDRYING 审中-公开

    公开(公告)号：EP3353232A1

    公开(公告)日：2018-08-01

    申请号：EP16770771.0

    申请日：2016-09-26

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： MENENDEZ GONZALEZ, Reyes ,  TRAMBITAS, Daniela Oana ,  CANTEKIN, Seda ,  GRAVESON, Ian ,  JENNEKENS, Math ,  MOMIN, Saschi

    IPC: C08J3/12 ,  B01D1/18 ,  F26B3/12 ,  D21C9/00

    CPC classification number: C08J3/122 ,  B01D1/18 ,  B01D11/0203 ,  B82Y40/00 ,  C08J3/03 ,  C08J3/095 ,  C08J3/096 ,  C08J2301/02 ,  D21C9/004 ,  D21C9/005 ,  D21C9/007 ,  D21H11/18 ,  F26B3/12 ,  Y02P20/544

    Abstract: The present invention provides for a process for producing dry, water-dispersible, non-surface modified nanocellulose particles or a powderous composition r comprising said particles comprising the steps of: i. providing a first suspension of non-surface modified cellulose particles in an first aqueous liquid, which aqueous liquid is non-solubilizing for the non-surface modified nanocellulose particles, ii. exchanging substantially all of the first aqueous liquid of the first suspension for a second solvent, which is miscible with the first aqueous liquid and non-solubilizing for the non-surface modified nanocellulose particles, to form a second suspension of non-surface modified nanocellulose particles in said second solvent, iii. contacting a flow of the second suspension of non-surface modified nanocellulose particles with a flow of a fluid in a supercritical or critical state, which fluid in a supercritical or critical state is miscible with the second solvent and non-solvating for the non- surface modified nanocellulose particles under conditions suitable for the transfer of substantially all of the second solvent into the supercritical fluid, iv. removing the second solvent and the fluid in a supercritical or critical state, preferably by controlling pressure and/or temperature, to form the dry, water-dispersible nanocellulose particles, v. collecting the dry, water-dispersible, non-surface modified nanocellulose particles and/or forming the powderous composition comprising said particles.

    PROCESS FOR MANUFACTURING A PRECURSOR MATERIAL
    52.
    发明公开
    PROCESS FOR MANUFACTURING A PRECURSOR MATERIAL 审中-公开
    制造前体材料的方法

    公开(公告)号：EP3178623A1

    公开(公告)日：2017-06-14

    申请号：EP15198308.7

    申请日：2015-12-07

    Applicant: SAPPI Netherlands Services B.V.

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

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

    CPC classification number: B29B7/92 ,  B29B7/005 ,  B29B7/16 ,  B29B7/283 ,  B29B7/7461 ,  B29B9/06 ,  B29B9/14 ,  B29B9/16

    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.

    Abstract translation: 一种制造用于制造复合材料颗粒的前体材料的方法，所述前体材料包含聚合物材料和纤维材料，所述方法包括以下步骤： 在包含共混装置的共混装置中搅拌聚合物材料和纤维材料，其中共混装置的操作速度足以使温度升高至至少超过VICAT软化点的温度，或温度在或超过 聚合物材料的熔化温度范围; 湾 保持混合装置的速度; C。 当维持混合装置的速度所需的特定电机功率增加预定量或达到预定值时，将速度减小预定量; d。 重复上一步骤c。 直到速度降到第一阈值以下，从而形成中间材料; 即 通过以允许温度降低的速度操作粉碎装置，直至温度降至第二阈值以下，由此形成前体材料，在包括粉碎装置的优选冷却的粉碎装置中粉碎所形成的中间材料。

    METHOD FOR DRY SPINNING NEUTRAL AND ANIONICALLY MODIFIED CELLULOSE AND FIBRES MADE USING THE METHOD
    53.
    发明公开
    METHOD FOR DRY SPINNING NEUTRAL AND ANIONICALLY MODIFIED CELLULOSE AND FIBRES MADE USING THE METHOD 有权
    VERFAHREN ZUM TROCKENSPINNEN VON NEUTRALER UND ANIONISCH MODIFIZERERTER CELLULOSE

    公开(公告)号：EP2683858A1

    公开(公告)日：2014-01-15

    申请号：EP12707352.6

    申请日：2012-03-08

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： GRAVESON, Ian ,  TURNER, Philip

    IPC: D01F2/00 ,  D01D1/02 ,  D01D5/40 ,  D01F2/24 ,  D21H13/00 ,  D21H15/00 ,  D01D5/04

    CPC classification number: D21C9/00 ,  D01D1/02 ,  D01D5/40 ,  D01F2/00 ,  D01F2/24 ,  D21H13/02 ,  D21H15/00

    Abstract: The present invention is directed towards a method for spinning neutral or anionically modified cellulose comprising the steps of: (a) preparing a suspension of the neutral or anionically modified cellulose in a continuous phase; (b) subjecting the suspension to high shear rate; (c) performing spinning by extruding the cellulose suspension into an airgap region comprising at least one heated zone to obtain spun fibres, (d) subjecting the spun fibres to at least one washing stages and (e) isolating the spun fibres from the at least one washing stages; as well as fibres obtained based on the method of the invention and paper or board products derived from such fibres.

    Abstract translation: 本发明涉及一种纺制中性或阴离子改性纤维素的方法，包括以下步骤：（a）在连续相中制备中性或阴离子改性纤维素的悬浮液; （b）使悬浮液经受高剪切速率; （c）通过将纤维素悬浮液挤出到包括至少一个加热区域的气隙区域中进行纺丝，以获得纺丝纤维，（d）使纺丝纤维经受至少一个洗涤阶段，和（e）至少从至少一个 一个洗涤阶段; 以及基于本发明的方法获得的纤维以及衍生自这种纤维的纸或纸制品。

    PAPER FOR INK JET PRINTING
    56.
    发明公开
    PAPER FOR INK JET PRINTING 有权
    纸喷墨

    公开(公告)号：EP2170618A1

    公开(公告)日：2010-04-07

    申请号：EP08784771.1

    申请日：2008-07-15

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： BOTTY, Gilbert ,  BALLET, Wim

    IPC: B41M5/52

    CPC classification number: B41M5/5218 ,  B41M5/506

    Abstract: An ink jet paper as well as a method for its manufacture is disclosed comprising at least one image receiving coating layer and at least one pre-coat layer beneath said image receiving coating layer on a paper substrate, wherein the pre-coat layer comprises 100 parts in dry weight of a pigment part consisting of 20-75 parts in dry weight of a fine particulate calcium carbonate and/or kaolin; 10 - 70 parts in dry weight of at least one fine particulate silica and/or of a fine particulate ground calcium carbonate with surface and internal structure modification as a result of treatment with one or more medium to strong H3O+ ion providers and optionally with additional treatment of gaseous carbon dioxide; and 0 - 30 parts of additional fine particulate pigments 4 - 20 parts in dry weight of a binder part 0-6 parts in dry weight of additives; and the image receiving coating layer comprises 100 parts in dry weight of a pigment part consisting of 50 - 100 parts in dry weight of at least one fine particulate silica; 0 - 50 parts in dry weight of a fine particulate polymer pigment; and 0 - 30 parts of additional fine particulate pigments 2 - 10 parts in dry weight of a binder 0-3 parts in dry weight of additives.

    TRANSLUCENT PAPER PRODUCTS
    59.
    发明公开
    TRANSLUCENT PAPER PRODUCTS 审中-公开

    公开(公告)号：EP4310249A1

    公开(公告)日：2024-01-24

    申请号：EP22185880.6

    申请日：2022-07-19

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： SANTMARTI, Alba ,  DAL FARRA, Maria Giulia ,  COMANDE, Giorgio ,  CLAESSEN, Rick ,  AYADI, Farouk

    IPC: D21H11/18 ,  D21H19/60 ,  D21H21/16 ,  D21H25/00 ,  D21H27/06 ,  D21H27/10

    Abstract: A translucent paper comprising a base paper layer, and optionally a coating layer adjacent to the base paper layer, wherein the base paper layer comprises a mixture of wood pulp fiber and microfibrillated cellulose, characterized in that the pulp fiber has a degree of Schopper-Riegler (SR) of more than or equal to 50 SR and that the microfibrillated cellulose is comprised in the mixture of pulp fiber and microfibrillated cellulose in an amount of 10 weight percent to about 50 weight percent, based on the weight of the mixture of pulp fiber and microfibrillated cellulose and wherein the mixture of pulp fiber and microfibrillated cellulose has a degree of Schopper-Riegler (SR) of between 65 SR and 95 SR, preferably of between 70 SR and 90 SR, as measured under ISO 5267-1.

Patent Agency Ranking