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    PROCESS FOR THE PREPARATION OF POROUS POLYYOLEFIN PARTICLES
    41.
    发明申请
    PROCESS FOR THE PREPARATION OF POROUS POLYYOLEFIN PARTICLES 审中-公开
    制备多孔聚烯烃颗粒的方法

    公开(公告)号：WO1997020884A1

    公开(公告)日：1997-06-12

    申请号：PCT/NL1996000452

    申请日：1996-11-15

    Applicant: DSM N.V. ,  TABAKSBLAT, Ronald ,  AUSSEMS, Hendrikus, Franciscus

    Inventor： DSM N.V.

    IPC: C08J09/28

    CPC classification number: C08J9/28 ,  C08J2201/0542 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/02

    Abstract: The invention relates to a process for the preparation of porous polyolefin particles, which process comprises the following steps: 1) dissolution of at least one crystallizable polyolefin in a solvent, which results in a solution being formed which comprises 0.1-50 wt.% polyolefin, and the initial polyolefin solution formed containing between 5 ppm and 20 wt.% of nucleating agent; 2) dispersion of the resulting polyolefin solution in a non-solvent, at a temperature that is higher than the crystallization temperature of the polyolefin in the polyolefin solution, upon which a multiphase system is formed; 3) cooling of the multiphase system, with simultaneous stirring, the cooling rate being between 0.05 and 10 DEG C/min, down to a temperature which is below the crystallization temperature of the polyolefin in the polyolefin solution, so that strong, polyolefin-containing particles are formed; 4) separation of the polyolefin-containing particles from the liquid(s); 5) drying of the polyolefin-containing particles at a temperature that is below the crystallization temperature of the polyolefin in the initial polyolefin solution.

    Abstract translation: 本发明涉及一种制备多孔聚烯烃颗粒的方法，该方法包括以下步骤：1）将至少一种可结晶的聚烯烃溶解在溶剂中，其形成溶液，其包含0.1-50重量％的聚烯烃 和形成的初始聚烯烃溶液，其含有5重量％至20重量％的成核剂; 2）在高于聚烯烃溶液中的聚烯烃的结晶温度的温度下，将所得聚烯烃溶液分散在非溶剂中，形成多相体系; 3）多相体系的冷却，同时搅拌，冷却速度为0.05〜10℃/ min，降至低于聚烯烃溶液中聚烯烃结晶温度的温度，使得含聚烯烃 形成颗粒; 4）将含聚烯烃的颗粒与液体分离; 5）在低于初始聚烯烃溶液中的聚烯烃的结晶温度的温度下干燥含聚烯烃的颗粒。

    PROCESS FOR PRODUCING POROUS POLYMER MEMBRANE AND COMPOSITE POLYMER MEMBRANE
    42.
    发明申请
    PROCESS FOR PRODUCING POROUS POLYMER MEMBRANE AND COMPOSITE POLYMER MEMBRANE 审中-公开
    用于生产多孔聚合物膜和复合聚合物膜的方法

    公开(公告)号：WO1989008679A1

    公开(公告)日：1989-09-21

    申请号：PCT/JP1989000239

    申请日：1989-03-07

    Applicant: RIKAGAKU KENKYUSHO ,  KYOWA HAKKO KOGYO CO., LTD. ,  FURUKAWA, Takeo ,  INABA, Yukio

    Inventor： RIKAGAKU KENKYUSHO ,  KYOWA HAKKO KOGYO CO., LTD.

    IPC: C08J09/28

    CPC classification number: C08J9/28 ,  C08J2201/05 ,  C08J2201/0542

    Abstract: Composite membranes of liquid crystal and/or dye and a polymer are expected to have various functions in addition to electro-optical effects and non-linear optical effects of the starting substances, and are promising as various industrial materials. Liquid crystal-polymer composite membranes produced by conventional processes do not have fully satisfactory electric and optical properties because the diameters of the low-molecular functional compounds and their distribution are nonuniform. A process for producing a porous polymer membrane by evaporating a solvent from a polymer solution containing water and alcohol according to this invention provides a porous polymer membrane having pores of a uniform size uniformly distributed therein. Furthermore a process for producing a composite membrane according to this invention comprises filling the pores of the porous polymer membrane with low-molecular functional compounds such as liquid crystal or dye to obtain a composite membrane wherein the low-molecular functional compoumd is uniformly distributed in a uniform size. In addition, in the case of producing the porous polymer membrane, the size of the pore of the polymer membrane can be controlled by controlling humidity of a highly humid environment or the amount of water in the polymer solution. Fixed membranes with excellent electric and optical properties can be obtained by providing electrodes in the composite membrane obtained by filling a low-molecular functional compound such as liquid crystal or dye in the pores of the obtained porous polymer membrane.

    Abstract translation: 预期液晶和/或染料和聚合物的复合膜除了起始物质的电光效应和非线性光学效应之外还具有各种功能，并且作为各种工业材料是有希望的。 通过常规方法制备的液晶聚合物复合膜由于低分子官能化合物的直径及其分布不均匀而不具有令人满意的电和光学性质。 通过根据本发明从含有水和醇的聚合物溶液中蒸发溶剂来生产多孔聚合物膜的方法提供了具有均匀分布在其中的尺寸均匀的孔的多孔聚合物膜。 此外，根据本发明的复合膜的制造方法包括用液晶或染料等低分子官能化合物填充多孔聚合物膜的孔，得到复合膜，其中低分子官能化合物均匀分布在 均匀尺寸。 此外，在制造多孔聚合物膜的情况下，可以通过控制高湿度环境的湿度或聚合物溶液中的水量来控制聚合物膜的孔的尺寸。 通过在通过在所得多孔聚合物膜的孔中填充液晶或染料等低分子官能化合物而得到的复合膜中设置电极，可以得到电气和光学特性优异的固定膜。

    POROUS CROSS-LINKED POLYIMIDE-UREA NETWORKS
    46.
    发明公开
    POROUS CROSS-LINKED POLYIMIDE-UREA NETWORKS 审中-公开
    PORÖSE，VERNETZTE POLYIMID-HARNSTOFF-NETZWERKE

    公开(公告)号：EP2970621A2

    公开(公告)日：2016-01-20

    申请号：EP14718829.6

    申请日：2014-03-12

    Applicant: OHIO AEROSPACE INSTITUTE ,  U.S. Government, As Represented By The Administrator Of the National Aeronautics And Space Administration

    Inventor： MEADOR, Mary, Ann B. ,  NGUYEN, Baochau, N.

    IPC: C08J9/28 ,  C08G18/64 ,  C08G73/10

    CPC classification number: C08G73/1046 ,  C08G18/3225 ,  C08G18/6438 ,  C08G73/101 ,  C08G73/1028 ,  C08G73/1035 ,  C08G73/1042 ,  C08G73/105 ,  C08G73/1071 ,  C08J9/00 ,  C08J9/28 ,  C08J2201/026 ,  C08J2201/0542 ,  C08J2203/06 ,  C08J2203/08 ,  C08J2205/026 ,  C08J2379/02 ,  C08L79/08 ,  Y10T428/24975 ,  Y10T428/2933

    Abstract: Porous cross-linked polyimide-urea networks are provided. The networks comprise a subunit comprising two anhydride end-capped polyamic acid oligomers in direct connection via a urea linkage. The oligomers (a) each comprise a repeating unit of a dianhydride and a diamine and a terminal anhydride group and (b) are formulated with 2 to 15 of the repeating units. The subunit was formed by reaction of the diamine and a diisocyanate to form a diamine-urea linkage-diamine group, followed by reaction of the diamine-urea linkage-diamine group with the dianhydride and the diamine to form the subunit. The subunit has been cross-linked via a cross-linking agent, comprising three or more amine groups, at a balanced stoichiometry of the amine groups to the terminal anhydride groups. The subunit has been chemically imidized to yield the porous cross-linked polyimide-urea network. Also provided are wet gels, aerogels, and thin films comprising the networks, and methods of making the networks.

    Abstract translation: 提供多孔交联聚酰亚胺 - 尿素网络。 网络包括通过尿素键直接连接的两个酸酐封端的聚酰胺酸低聚物的亚基。 低聚物（a）各自包含二酐和二胺和末端酐基团的重复单元，（b）与2至15个重复单元配制。 亚胺通过二胺与二异氰酸酯的反应形成二胺 - 脲键 - 二胺基，随后二胺 - 脲键 - 二胺基与二酐和二胺反应形成亚单元。 亚基已经通过交联剂交联，所述交联剂包含三个或更多个胺基团，所述交联剂以胺基团与末端酐基团的平衡化学计量比。 该亚基已被化学酰亚胺化以产生多孔交联聚酰亚胺 - 尿素网络。 还提供了湿凝胶，气凝胶和包含网络的薄膜以及制造网络的方法。

    PROCESS FOR THE PREPARATION OF POROUS POLYYOLEFIN PARTICLES
    49.
    发明授权
    PROCESS FOR THE PREPARATION OF POROUS POLYYOLEFIN PARTICLES 失效
    VERFAHREN ZUR HERSTELLUNGPORÖSERPOLYOLEFINTEILCHEN

    公开(公告)号：EP0865463B1

    公开(公告)日：1999-07-28

    申请号：EP96937582.3

    申请日：1996-11-15

    Applicant: DSM N.V.

    Inventor： TABAKSBLAT, Ronald ,  AUSSEMS, Hendrikus, Franciscus

    IPC: C08J9/28

    CPC classification number: C08J9/28 ,  C08J2201/0542 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/02

    Abstract: The invention relates to a process for the preparation of porous polyolefin particles, which process comprises the following steps: 1) dissolution of at least one crystallizable polyolefin in a solvent, which results in a solution being formed which comprises 0.1-50 wt.% polyolefin, and the initial polyolefin solution formed containing between 5 ppm and 20 wt.% of nucleating agent; 2) dispersion of the resulting polyolefin solution in a non-solvent, at a temperature that is higher than the crystallization temperature of the polyolefin in the polyolefin solution, upon which a multiphase system is formed; 3) cooling of the multiphase system, with simultaneous stirring, the cooling rate being between 0.05 and 10 °C/min, down to a temperature which is below the crystallization temperature of the polyolefin in the polyolefin solution, so that strong, polyolefin-containing particles are formed; 4) separation of the polyolefin-containing particles from the liquid(s); 5) drying of the polyolefin-containing particles at a temperature that is below the crystallization temperature of the polyolefin in the initial polyolefin solution.

    Abstract translation: 本发明涉及一种制备多孔聚烯烃颗粒的方法，该方法包括以下步骤：1）将至少一种可结晶的聚烯烃溶解在溶剂中，其形成溶液，其包含0.1-50wt。 ％聚烯烃，并且形成的初始聚烯烃溶液含有5ppm至20wt。 ％的成核剂，2）在高于聚烯烃溶液中的聚烯烃的结晶温度的温度下，将所得聚烯烃溶液分散在非溶剂中，在其上形成多相体系，3）冷却 多相体系，同时搅拌，冷却速度为0.05〜10℃/分钟，降至低于聚烯烃溶液中聚烯烃结晶温度的温度，从而形成强的含聚烯烃颗粒， 4）将含聚烯烃的颗粒与液体分离，5）在初始聚烯烃溶液中在低于聚烯烃结晶温度的温度下干燥含聚烯烃的颗粒。

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