利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

14 条记录 (耗时 0.015 秒)

    POROUS CELLULOSE MEDIUM AND METHOD FOR PRODUCING SAME
    1.
    发明公开
    POROUS CELLULOSE MEDIUM AND METHOD FOR PRODUCING SAME 审中-公开

    公开(公告)号：EP3988204A1

    公开(公告)日：2022-04-27

    申请号：EP20825674.3

    申请日：2020-06-19

    申请人： Daicel Corporation

    发明人： OKURA, Hiromichi ,  SHIBATA, Toru ,  HIRABAYASHI, Yuki

    IPC分类号： B01J20/285 ,  B01D15/34 ,  B01J2/00 ,  B01J2/06 ,  B01J20/24 ,  B01J20/281 ,  B01J20/30

    摘要： Provided is a novel porous cellulose medium that can efficiently separate a large target molecule in a calibration standard having a large pore diameter and a large pore volume and a weight average molecular weight from approximately 10 5.0 to 10 5.5 . A porous cellulose medium including a porous cellulose particle having a particle size from 1 to 600 µm, wherein, in sieving the porous cellulose medium for classification and using a fraction corresponding to aperture openings between 53 µm and 106 µm as a support for size exclusion chromatography, a polyethylene oxide standard is run through size exclusion chromatography with pure water as a mobile phase, and a weight average molecular weight Mw and a gel partition coefficient K av of the polyethylene oxide standard satisfy Relationships (A) and (B) above:
    in a case where 4 . 80 ≤ logMw ≤ 5 . 50 , K av > − 0.445 × logMw + 2.55
    in a case where 5 . 75 ≤ logMw , 0 ≤ K av 0.19

    METHOD FOR PRODUCING POROUS CELLULOSE MEDIUM
    4.
    发明公开
    METHOD FOR PRODUCING POROUS CELLULOSE MEDIUM 审中-公开
    生产多孔纤维素介质的方法

    公开(公告)号：EP3279219A1

    公开(公告)日：2018-02-07

    申请号：EP16773214.8

    申请日：2016-04-01

    申请人： Daicel Corporation

    发明人： SHIBATA, Toru ,  MORISHITA, Yasuto ,  NISHIHARA, Keiji

    IPC分类号： C08B15/00 ,  C08J9/28

    摘要： Provided are a technique for preparing a porous cellulose medium without using a special gelling agent for a solution in which cellulose acetate serving as a raw material is dissolved; and a porous cellulose medium and the like produced using the technique. A method for producing a porous cellulose medium comprises the step of preparing a flowable homogeneous composition comprising cellulose acetate, a basic compound, and a solvent including water, and gelling the composition by deacetylation reaction of the cellulose acetate.

    摘要翻译： 本发明提供一种不使用特殊胶凝剂而制备溶解有作为原料的乙酸纤维素的溶液的多孔纤维素介质的制造方法， 以及使用该技术制造的多孔纤维素介质等。 制备多孔纤维素介质的方法包括制备包含乙酸纤维素，碱性化合物和包括水的溶剂的可流动的均匀组合物的步骤，并通过乙酸纤维素的脱乙酰化反应胶凝组合物。

    METHOD FOR PRODUCING CELLULOSE BEADS
    6.
    发明公开
    METHOD FOR PRODUCING CELLULOSE BEADS 审中-公开

    公开(公告)号：EP3896092A1

    公开(公告)日：2021-10-20

    申请号：EP19897104.6

    申请日：2019-11-26

    申请人： Daicel Corporation

    发明人： SHIBATA, Toru ,  OKURA, Hiromichi

    IPC分类号： C08B15/08 ,  C08J3/14 ,  B01J2/06 ,  B01J20/24 ,  B01J20/30

    摘要： Provided is a novel method for producing cellulose beads, the method being capable of suitably producing spherical cellulose beads. The method for producing cellulose beads includes: (Step 1) preparing a coagulating bath having a first liquid medium phase and a second liquid medium phase; (Step 2) forming a particulate cellulose solution in the first liquid medium phase by supplying a cellulose solution to the first liquid medium phase of the coagulating bath; and (Step 3) coagulating the particulate cellulose solution by supplying the particulate cellulose solution in the first liquid medium phase to the second liquid medium phase.

    METHOD FOR PRODUCING POROUS CELLULOSE MEDIUM
    9.
    发明公开
    METHOD FOR PRODUCING POROUS CELLULOSE MEDIUM 审中-公开
    生产多孔纤维素介质的方法

    公开(公告)号：EP3173437A1

    公开(公告)日：2017-05-31

    申请号：EP15824809.6

    申请日：2015-07-22

    申请人： Daicel Corporation

    发明人： SHIBATA, Toru ,  MORISHITA, Yasuto ,  ITO, Yosuke

    IPC分类号： C08J9/26 ,  C08J3/16

    CPC分类号： C08J9/26 ,  B01D15/3809 ,  B01J20/24 ,  B01J20/28019 ,  B01J20/28042 ,  B01J20/285 ,  B01J20/286 ,  B01J20/3007 ,  B01J20/3078 ,  B01J20/3212 ,  B01J20/3274 ,  C07K1/22 ,  C07K16/00 ,  C08J3/075 ,  C08J3/16 ,  C08J2301/12

    摘要： The present invention provides a technique for preparing a porous cellulose medium, through the gelation of a solution in which cellulose acetate as a raw material is dissolved, which does not cause a reaction involving the migration of substances. Specifically, a method for producing a porous cellulose medium is provided which includes the steps of gelling a flowable homogeneous composition containing cellulose acetate, an organic solvent, and water through a decrease in temperature; and hydrolyzing the cellulose acetate contained in the resulting gel.

    摘要翻译： 本发明提供一种制备多孔纤维素介质的技术，该技术是通过将其中溶解有作为原料的乙酸纤维素的溶液凝胶化而不引起涉及物质迁移的反应。 具体而言，提供了一种制造多孔纤维素介质的方法，其包括以下步骤：通过降低温度使包含乙酸纤维素，有机溶剂和水的可流动的均匀组合物胶凝; 并水解所得凝胶中所含的乙酸纤维素。