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    PROCESS FOR THE PREPARATION OF POROUS POLYYOLEFIN PARTICLES
    71.
    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 THE MANUFACTURE OF MICROPOROUS POLYOLEFINE STRIPS OR FILMS
    72.
    发明申请
    PROCESS FOR THE MANUFACTURE OF MICROPOROUS POLYOLEFINE STRIPS OR FILMS 审中-公开
    用于生产微孔聚烯烃片材或薄膜

    公开(公告)号：WO1995013316A1

    公开(公告)日：1995-05-18

    申请号：PCT/AT1994000167

    申请日：1994-11-07

    Applicant: TERRACHEM CHEMISCH TECHNISCHE PRODUKTE GESELLSCHAFT MBH ,  RAPPOLD, Eva

    Inventor： TERRACHEM CHEMISCH TECHNISCHE PRODUKTE GESELLSCHAFT MBH

    IPC: C08J09/28

    CPC classification number: H01M2/1653 ,  B01D67/003 ,  B01D71/26 ,  B01D2323/20 ,  B01D2323/21 ,  C08J9/28 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2323/02

    Abstract: A process is proposed for the manufacture of microporous polyolefine strips or films. The process involves mixing a polyolefine of high molecular weight, an inert hydrophilic filler preferably in the form of finely divided silicic acid and a plasticizer in the form of a mineral oil; plastifying the mixture; forming strips therefrom and extracting the plasticizer. The process is characterized by the fact that the strips are treated with hot water, preferably by being drawn over the surface of a hot water bath, the extraction being effected with the aid of an extraction agent which, in the known way, contains or consists of at least one glycol ether, in particular a butyl glycol.

    Abstract translation: 提出了一种用于生产微孔聚烯烃片材或薄膜的方法，其中混合的高分子量聚烯烃，惰性亲水性填料，优选在细分散的二氧化硅的形式，并在矿物油的形式存在的增塑剂，增塑，形成片材，然后萃取增塑剂是 与腹板的热水处理，优选在热水浴的表面上，然后至少一种二醇醚，尤其是丁基乙二醇含有以已知的方式，或由萃取剂的标识符被提取。

    THERMALLY INDUCED PHASE SEPARATED AZLACTONE MEMBRANE
    75.
    发明申请
    THERMALLY INDUCED PHASE SEPARATED AZLACTONE MEMBRANE 审中-公开
    热诱导相分离的AZLACTONE膜

    公开(公告)号：WO1994016803A1

    公开(公告)日：1994-08-04

    申请号：PCT/US1994001062

    申请日：1994-01-28

    Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY ,  EXSTED, Bert, J. ,  KANGAS, Steven, L.

    Inventor： MINNESOTA MINING AND MANUFACTURING COMPANY

    IPC: B01D71/78

    CPC classification number: C08J9/28 ,  B01D67/0027 ,  B01D67/003 ,  B01D71/26 ,  B01D71/44 ,  B01D71/62 ,  B01D71/78 ,  B01D2323/08 ,  B01D2323/24 ,  C08J2201/0543 ,  C08J2201/0546 ,  Y10T428/249978 ,  Y10T428/249979

    Abstract: The present invention provides a microporous material or a membrane in which the membrane includes an azlactone moiety which is blended with or grafted to a thermoplastic polymer to provide a porous material having an internal structure characterized by a multiplicity of spaced, randomly disposed, non-uniform shaped, equiaxed particles of the polyazlactone polymer/thermoplastic polymer blends or the azlactone-graft copolymer. Each of the adjacent particles throughout the material are separated from one another to provide said material with a network of interconnected micropores and each of the particles are connected to each other by a plurality of fibrils. In addition to unmodified azlactone membranes, membranes which have been modified by subsequent reaction of the azlactone moiety with a suitable nucleophile are also included within the scope of the present invention. Preferred nucleophiles capable of reacting with an azlactone membrane of this invention include biologically significant nucleophiles such as amines, thiols and alcohols as well as amino acids, nucleic acids and proteins.

    Abstract translation: 本发明提供了一种微孔材料或膜，其中膜包括偕根酮部分，其与热塑性聚合物共混或接枝到热塑性聚合物上，以提供具有内部结构的多孔材料，其特征在于多个间隔开的，随机排列的，不均匀的 聚硅烷内酯聚合物/热塑性聚合物共混物或吖内酯接枝共聚物的等轴晶粒。 整个材料中的每个相邻颗粒彼此分离，以使所述材料具有互连微孔的网络，并且每个颗粒通过多个原纤维彼此连接。 除了未改性的吖内酯膜之外，已经通过吖内酯部分与合适的亲核试剂的后续反应进行了修饰的膜也包括在本发明的范围内。 能够与本发明的吖内酯膜反应的优选亲核试剂包括生物显着的亲核试剂如胺，硫醇和醇以及氨基酸，核酸和蛋白质。

    FORMATION OF STRONG SUPERPOROUS HYDROGELS
    79.
    发明申请
    FORMATION OF STRONG SUPERPOROUS HYDROGELS 审中-公开
    形成强大的超级水力

    公开(公告)号：WO2004096127A2

    公开(公告)日：2004-11-11

    申请号：PCT/US2004011448

    申请日：2004-04-14

    Applicant: KOS LIFE SCIENCES INC

    Inventor： OMIDIAN HOSSEIN ,  GUTIERREZ-ROCCA JOSE

    IPC: A61K9/22 ,  C08F8/44 ,  C08F251/00 ,  C08J9/28 ,  A61K

    CPC classification number: C08F251/00 ,  A61L27/20 ,  A61L27/52 ,  A61L27/56 ,  A61L31/042 ,  A61L31/145 ,  A61L31/146 ,  C08F2/44 ,  C08F8/44 ,  C08F251/02 ,  C08J3/075 ,  C08J9/08 ,  C08J9/28 ,  C08J9/40 ,  C08J2201/024 ,  C08J2201/0546 ,  C08J2203/02 ,  C08J2205/02 ,  C08J2205/022 ,  C08J2300/14 ,  C08J2301/28 ,  C08L2205/04

    Abstract: The present invention features a method for the formation of superporous hydrogels using an ion-equilibration technique. Anionic polysaccharides are included in the hydrogel reaction mixture and cations are introduced either during or after hydrogel formation. Properties of the resulting hydrogel can be subsequently adjusted by treating the cation ­complexed gel with a different cation or cation mixture under equilibrating conditions. It has been found that by properly adjusting the cations and the sequence in which they are used in the equilibration process, superporous hydrogels can be formed that are highly absorbent while maintaining favorable structural properties, including strength, ruggedness, and resiliency. It has also been found that applying appropriate dehydration conditions to them after their formation can further stabilize the superporous hydrogels formed by the method of the invention.

    Abstract translation: 本发明的特征在于使用离子平衡技术形成多孔水凝胶的方法。 在水凝胶反应混合物中包含阴离子多糖，并且在水凝胶形成期间或之后引入阳离子。 随后通过在平衡条件下用不同的阳离子或阳离子混合物处理阳离子络合的凝胶来调节所得水凝胶的性质。 已经发现，通过在平衡过程中适当地调节阳离子及其使用顺序，可以形成高吸水性的多孔水凝胶，同时保持有利的结构特性，包括强度，耐久性和弹性。 还已经发现，在其形成后对它们施加适当的脱水条件可以进一步稳定通过本发明的方法形成的多孔水凝胶。

    孔質性ポリイミド系微粒子の製造方法
    80.
    发明申请
    孔質性ポリイミド系微粒子の製造方法 审中-公开
    生产多孔聚酰亚胺颗粒的方法

    公开(公告)号：WO2004055096A1

    公开(公告)日：2004-07-01

    申请号：PCT/JP2003/008728

    申请日：2003-07-09

    Applicant: 科学技術振興事業団 ,  中西 八郎 ,  笠井 均 ,  三浦 啓彦 ,  及川 英俊 ,  岡田 修司

    Inventor： 中西 八郎 ,  笠井 均 ,  三浦 啓彦 ,  及川 英俊 ,  岡田 修司

    IPC: C08G73/10

    CPC classification number: C08J9/28 ,  C08J2201/0543 ,  C08J2201/0546 ,  C08J2379/08 ,  C08L79/08

    Abstract: A process for producing fine porous polyimide particles which comprises: dissolving a polyamic acid containing 0.5 to 80 wt.% alkali metal salt in a good solvent for polyamic acids in a concentration of 0.1 to 15 wt.%; adding the resultant polymer solution to a poor solvent selected from an aliphatic solvent, alicyclic solvent, aromatic solvent, CS2, and mixture of two or more thereof and regulated so as to have a temperature of -20 to 60°C; controlling the temperature of the poor solvent to form fine porous polyamic acid particles which have a particle diameter of 50 to 10,000 nm and have been regulated so as to have a pore diameter of 20 to 500 nm and a porosity of 0.1 to 30% by changing the content or kind of the alkali metal salt; and then subjecting the particles to chemical imidization or thermal imidization or to chemical imidization and subsequent thermal imidization. The fine porous polyimide particles thus produced retain the pore diameter and porosity.

    Abstract translation: 一种生产细多孔聚酰亚胺颗粒的方法，其包括：将含有0.5-80重量％碱金属盐的聚酰胺酸溶解在浓度为0.1至15重量％的聚酰胺酸的良溶剂中; 将所得聚合物溶液加入到选自脂肪族溶剂，脂环族溶剂，芳香族溶剂，CS2及其两种以上的混合物中的不良溶剂中，调节为-20〜60℃的温度; 控制不良溶剂的温度，形成粒径为50〜10000nm的细微多孔聚酰胺酸粒子，通过变更孔径为20〜500nm，孔径为0.1〜30％ 碱金属盐的含量或种类; 然后使颗粒进行化学酰亚胺化或热亚胺化或进行化学酰亚胺化和随后的热亚胺化。 由此制造的细多孔聚酰亚胺颗粒保持孔径和孔隙率。

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