中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

105 records (took 0.035 seconds)

    DRYING OF NANOCELLULOSE USING AMMONIA IN A SUPERCRITICAL STATE
    72.
    发明公开
    DRYING OF NANOCELLULOSE USING AMMONIA IN A SUPERCRITICAL STATE 审中-公开
    纳米纤维在超临界状态下的干燥研究

    公开(公告)号：EP3321316A1

    公开(公告)日：2018-05-16

    申请号：EP16198508.0

    申请日：2016-11-11

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： JENNEKENS, Math ,  TRAMBITAS, Daniela Oana

    IPC: C08L1/02

    CPC classification number: C08L1/02 ,  Y02P20/544

    Abstract: It is an object of the present invention to provide a process for producing non-surface modified nanocellulose particles, in particular in the form of a powder, comprising the steps of i. providing a suspension of never-dried, non-surface modified nanocellulose particles in an aqueous liquid, which aqueous liquid is non-solubilising for the non-surface modified nanocellulose particles, and which aqueous liquid is water or an aqueous solution of morpholine or piperidine or mixtures thereof, ii. contacting the suspension of non-surface modified nanocellulose particles with a fluid in a supercritical state, which fluid is miscible with the aqueous liquid and is non-solubilising for the non-surface modified nanocellulose particles, under conditions suitable for the transfer of the aqueous liquid into the fluid in a supercritical state, iii. removing the aqueous liquid and the fluid in a supercritical state, preferably by controlling pressure and/or temperature, to form the non-surface modified nanocellulose particles, iv. collecting the non-surface modified nanocellulose particles, characterized in that the fluid in a supercritical state comprises, or consists of, ammonia (NH3) in a supercritical state.

    Abstract translation: 本发明的目的是提供制备非表面改性的纳米纤维素颗粒，特别是粉末形式的方法，其包括以下步骤：i。 提供未干燥的非表面改性的纳米纤维素颗粒在水性液体中的悬浮液，所述水性液体对于非表面改性的纳米纤维素颗粒是非增溶的，并且所述水性液体是水或吗啉或哌啶的水溶液或 ii。 使非表面改性的纳米纤维素颗粒的悬浮液与处于超临界状态的流体接触，所述流体与含水液体可混溶并且对于非表面改性的纳米纤维素颗粒不可增溶，在适合转移含水液体的条件下 进入超临界状态的流体中，iii。 优选通过控制压力和/或温度，除去超临界状态的含水液体和流体，以形成非表面改性的纳米纤维素颗粒，iv。 收集非表面改性的纳米纤维素颗粒，其特征在于超临界状态的流体包含超临界状态的氨（NH 3）或由其组成。

    PROCESS TO REDUCE THE OVERALL ENERGY CONSUMPTION IN THE PRODUCTION OF NANOCELLULOSE
    74.
    发明公开
    PROCESS TO REDUCE THE OVERALL ENERGY CONSUMPTION IN THE PRODUCTION OF NANOCELLULOSE 审中-公开
    减少纳米纤维生产中的总体能源消耗的方法

    公开(公告)号：EP3176321A1

    公开(公告)日：2017-06-07

    申请号：EP15198088.5

    申请日：2015-12-04

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： MOMIN, Saschi ,  JANSEN, Adrianus Johannes Ernst

    IPC: D21D1/02 ,  D21D1/20

    CPC classification number: D21D1/20 ,  D21D1/02

    Abstract: A process for reducing the overall energy consumption in the production of nanocellulose dispersions from a base cellulosic material wherein said process comprises an intermediate step reducing the overall energy consumption by at least 50% when compared to a process lacking said intermediate step.

    Abstract translation: 一种用于降低从基础纤维素材料生产纳米纤维素分散体中的总能量消耗的方法，其中所述方法包括中间步骤，与缺乏所述中间步骤的方法相比，整体能耗降低至少50％。

    PROCESS FOR THE MANUFACTURE OF CELLULOSE-BASED FIBRES AND THE FIBRES THUS OBTAINED
    76.
    发明公开
    PROCESS FOR THE MANUFACTURE OF CELLULOSE-BASED FIBRES AND THE FIBRES THUS OBTAINED 有权
    用于生产纤维素类纤维和SO制得的纤维

    公开(公告)号：EP2344689A1

    公开(公告)日：2011-07-20

    申请号：EP09740523.7

    申请日：2009-10-09

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： TURNER, Philip ,  HERNANDEZ, Zurine ,  HILL, Callum

    IPC: D01F2/00 ,  D01D5/00

    CPC classification number: D01F2/00 ,  D01D5/12 ,  D01F2/24 ,  D01F2/30

    Abstract: A method for the spinning of a fibre comprising cellulose nano-fibrils being aligned along the main axis of the fibre from a lyotropic suspension of cellulose nano-fibrils, said nano-fibril alignment being achieved through extension of the extruded fibre from a die, spinneret or needle, wherein said fibre is dried under extension and the aligned nano-fibrils aggregate to form a continuous structure.The fibrils used in this method can be extracted from a cellulose-rich material such as wood. The invention also related to acellulose-based fibreobtained according to this method and to a cellulose fibrewhich contains at least 90 % wt of crystallised cellulose.

    Coated paper for offset printing
    77.
    发明公开
    Coated paper for offset printing 审中-公开
    Beschichtetes PapierfürOffsetdruck

    公开(公告)号：EP2292838A1

    公开(公告)日：2011-03-09

    申请号：EP09168205.4

    申请日：2006-07-12

    Applicant: SAPPI Netherlands Services B.V.

    Inventor： Haenen, Jean-Pierre ,  Resch, Peter ,  Scholte, Bert

    IPC: D21H19/40 ,  D21H19/82 ,  D21H19/84 ,  D21H25/14 ,  D21H21/18 ,  D21H21/52

    CPC classification number: B41M5/502 ,  B41M5/506 ,  B41M5/52 ,  B41M5/5218 ,  B41M5/5254 ,  D21H19/40 ,  D21H19/82 ,  D21H19/84 ,  D21H21/18 ,  D21H21/52 ,  D21H25/14

    Abstract: The specification pertains to a single or multiple coated printing sheet in particular but not exclusively for sheet-fed offset printing with an image receptive coating layer on a paper substrate. Unexpectedly short converting times and times until reprinting can be achieved by choosing a coating, in which the image receptive coating layer comprises a top layer and/or at least one second layer below said top layer, said top and/or second layer comprising a pigment part, wherein this pigment part is composed of 1 - 95 preferably of 80-95 parts in dry weight of a fine particulate carbonate and/or of a fine particulate kaolin or clay and 1 - 100, preferably 6 to 25 parts in dry weight of a fine particulate silica, and a binder part, wherein this binder part is composed of 5-20 parts in dry weight of binder and less than 4 parts in dry weight of additives. Furthermore methods for making such a printing sheet and uses of such a printing sheet are disclosed.

    Abstract translation: 本说明书涉及单一或多重涂布的印刷纸，特别是但不限于在纸基材上具有图像接受涂层的单张胶版印刷。 可以通过选择其中图像接受涂层包含顶层和/或在所述顶层下面的至少一个第二层的涂层来实现转印之前的转换时间和次数变短，所述顶部和/或第二层包含颜料 其中该颜料部分由1-95份，优选80-95份干重的细颗粒碳酸盐和/或细颗粒状高岭土或粘土和1-100份，优选6-25份干燥重量的 细颗粒二氧化硅和粘合剂部分，其中该粘合剂部分由5-20份干燥粘合剂和小于4份干重量的添加剂组成。 此外，公开了制造这种印刷用纸的方法和这种印刷用纸的使用。

Patent Agency Ranking