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    POROUS POLYBENZIMIDAZOLE RESIN AND METHOD OF MAKING SAME
    91.
    发明申请
    POROUS POLYBENZIMIDAZOLE RESIN AND METHOD OF MAKING SAME 审中-公开
    多孔聚苯并咪唑树脂及其制备方法

    公开(公告)号：WO2012102923A8

    公开(公告)日：2012-09-07

    申请号：PCT/US2012021691

    申请日：2012-01-18

    Applicant: PBI PERFORMANCE PRODUCTS INC

    Inventor： HOPKINS JOHN B JR ,  HUDSON KARIN M ,  COPELAND GREGORY S ,  GRUENDER MICHAEL

    IPC: C08L79/04 ,  C08G73/18 ,  C08J9/28

    CPC classification number: C08J9/00 ,  C08J3/096 ,  C08J3/097 ,  C08J3/11 ,  C08J9/28 ,  C08J2201/0542 ,  C08J2205/04 ,  C08J2379/04 ,  Y10T428/2982

    Abstract: A porous polybenzimidazole (PBI) particulate resin is disclosed. This resin is easily dissolved at ambient temperatures and pressures. The resin is made by: dissolving a virgin PBI resin in a highly polar solvent; precipitating the dissolved PBI in a bath; and drying the precipitated PBI, the dried precipitated PBI being porous. The porous PBI resin may be dissolved by: mixing a porous PBI resin with a highly polar solvent at ambient temperatures and pressures to form a solution.

    Abstract translation: 公开了一种多孔聚苯并咪唑（PBI）颗粒树脂。 该树脂在环境温度和压力下容易溶解。 树脂通过以下方法制备：将未处理的PBI树脂溶解在高极性溶剂中; 将溶解的PBI沉淀在浴中; 并干燥沉淀的PBI，干燥的沉淀PBI是多孔的。 可以通过在环境温度和压力下将多孔PBI树脂与高极性溶剂混合以形成溶液来溶解多孔PBI树脂。

    PROCESS FOR THE PREPARATION OF POROUS POLYYOLEFIN PARTICLES
    95.
    发明公开
    PROCESS FOR THE PREPARATION OF POROUS POLYYOLEFIN PARTICLES 失效
    VERFAHREN ZUR HERSTELLUNG VONPORÖSEPOLYOLEFINTEILCHE

    公开(公告)号：EP0865463A1

    公开(公告)日：1998-09-23

    申请号：EP96937582.0

    申请日：1996-11-15

    Applicant: DSM N.V.

    Inventor： TABAKSBLAT, Ronald ,  AUSSEMS, Hendrikus, Franciscus

    IPC: A61K9 ,  A61K47 ,  C08J9

    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。

    Para-aromatic polyamide porous film
    96.
    发明公开
    Para-aromatic polyamide porous film 失效
    Poröser电影aus para-aromatischen Polyamid

    公开(公告)号：EP0757071A2

    公开(公告)日：1997-02-05

    申请号：EP96111605.0

    申请日：1996-07-18

    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED

    Inventor： Takahashi, Tsutomu ,  Tateno, Tatsuo ,  Tsujimoto, Yoshifumu

    IPC: C08J9/28 ,  C08J5/18 ,  C08J3/09 ,  H01M2/16

    CPC classification number: C08J9/26 ,  C08J5/18 ,  C08J9/28 ,  C08J2201/0542 ,  C08J2377/10 ,  H01M2/162 ,  H01M2/1653 ,  Y10T428/31725

    Abstract: A para-oriented aromatic polyamide porous film, which comprises fibrils having a diameter of not more than 1 µm and which has such a structure that the fibrils are planary arranged in the form of a network or nonwoven fabric and laminated in the form of a layer, wherein the thermal linear expansion coefficient at 200 to 300°C of the film is within ±50 x 10 -6 /°C and a percentage of vacant spaces is from 30 to 95% and a battery separator using the porous film are described. Furthermore, a process for producing the porous film is described, which comprises the following steps (a) to (c):

    (a) forming a film-like material from a solution containing 1 to 10% by weight of a para-oriented aromatic polyamide having an inherent viscosity of 1.0 to 2.8 dl/g and 1 to 10% by weight of a chloride of an alkali metal or an alkali earth metal in a polar amide solvent or a polar urea solvent;
    (b) maintaining the film-like material at a temperature of not less than 20°C or not more than -5°C to deposit the para-oriented aromatic polyamide; and
    (c) immersing the film-like material obtained in step (b) in an aqueous solution or an alcoholic solution to elute the solvent and chloride of the alkali metal or alkali earth metal, followed by drying to obtain the para-oriented aromatic polyamide porous film.

    It is to provide a para-aramid porous film having uniformity and fine vacant spaces, which can not be accomplished by a nonwoven fabric, a process for producing the same and a battery separator produced by using the para-aramid porous film, by making use of characteristics of a para-aramid (e.g. high heat resistance, high rigidity, high strength, etc.).

    Abstract translation: 对位取向的芳族聚酰胺多孔膜，其包含直径不大于1μm的原纤维，并且具有这样的结构，使得原纤维以网状或非织造织物的形式平面布置，并以 层，其中膜的200〜300℃的热线膨胀系数在+/- 50×10 -6 /℃以内，空位的百分比为30〜95％，电池隔板使用 描述多孔膜。 此外，描述了一种制备多孔膜的方法，其包括以下步骤（a）至（c）：（a）从含有1至10重量％的对位芳族化合物的溶液形成膜状材料 在极性酰胺溶剂或极性脲溶剂中，特性粘度为1.0〜2.8dl / g的聚酰胺和1〜10重量％的碱金属或碱土金属的氯化物; （b）将膜状材料保持在不低于20℃或不高于-5℃的温度下沉积对位芳族聚酰胺; 和（c）将步骤（b）中获得的薄膜状材料浸渍在水溶液或醇溶液中以洗脱碱金属或碱土金属的溶剂和氯化物，然后干燥，得到对位芳族聚酰胺 多孔膜。 本发明提供一种具有均匀性和微细空间的对位芳族聚酰胺多孔膜，其不能通过使用无机织物，其制造方法和通过使用对位芳族聚酰胺多孔膜制备的电池隔膜来实现 （例如高耐热性，高刚性，高强度等）。

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