多孔聚烯烃颗粒的制备方法

    公开(公告)号:CN1207749A

    公开(公告)日:1999-02-10

    申请号:CN96199755.9

    申请日:1996-11-15

    Abstract: 本发明涉及多孔聚烯烃的制备方法,此方法包括下列步骤:1)将至少一种结晶聚烯烃溶解在溶剂中,形成一种含0.1~50wt.%的聚烯烃溶液,和含5ppm~20wt.%的成核剂的初始聚烯烃溶液:2)将所得的聚烯烃溶液分散在非溶剂中以形成一个多相物系,其分散温度高于聚烯烃溶液中聚烯烃的结晶温度;3)将多相物系冷却并同时搅拌,冷却速率为0.05~10℃/min,直至温度低于聚烯烃溶液中聚烯烃的结晶温度时,由此形成坚韧的含聚烯烃的颗粒;4)将含聚烯烃的颗粒与液体分离;5)干燥含聚烯烃颗粒,其干燥温度低于初始聚烯烃溶液中聚烯烃的结晶温度。

    에어로겔 합성 방법
    14.
    发明公开
    에어로겔 합성 방법 审中-实审
    空气合成方法

    公开(公告)号:KR1020160014664A

    公开(公告)日:2016-02-11

    申请号:KR1020157036302

    申请日:2014-02-10

    Abstract: 본개시는에어로겔을제조하는방법을제공하는데, 이방법은적어도하나의산 모노머와적어도하나의다이아미노모노머를제1 용매중에서폴리이미드폴리머를형성하기에적절한조건하에반응시키고; 용매교환을수행하는단계로서, 여기에서제1 용매가제2 용매로교환되고, 상기제2 용매는빙점을갖고, 상기용매교환단계는추가로 (1) 압력용기내에서폴리이미드폴리머를제2 용매중에침지시키고, 그리고 (2) 압력용기내에제1 기간동안고압환경을생성시키는것을포함하고; 폴리이미드폴리머를제2 용매의빙점아래제1 온도로냉각시키고; 그리고냉각된폴리이미드폴리머를제2 기간동안제2 온도에서제1 진공으로처리하는것을포함한다.

    Abstract translation: 本公开提供了一种制备气凝胶的方法,该方法包括使至少一种酸单体与至少一种二氨基单体在第一溶剂中在适于形成聚酰亚胺聚合物的条件下反应; 进行溶剂交换,其中第一溶剂被更换为第二溶剂,所述第二溶剂具有凝固点,其中所述溶剂交换还包括(1)将聚酰亚胺聚合物浸入第二溶剂中的压力容器中,和(2) 压力容器内的高压环境第一个时间段; 将聚酰亚胺聚合物冷却至低于第二溶剂凝固点的第一温度; 并在第二温度下将冷却的聚酰亚胺聚合物经受第一个真空第二个时间段。

    Polyolefin-based microporous film and method for production the same
    19.
    发明专利
    Polyolefin-based microporous film and method for production the same 有权
    基于聚烯烃的微孔薄膜及其制造方法

    公开(公告)号:JP2009160933A

    公开(公告)日:2009-07-23

    申请号:JP2008332246

    申请日:2008-12-26

    Abstract: PROBLEM TO BE SOLVED: To provide a separation membrane excellent in rigidity, perviousness, quality stability and thermal stability. SOLUTION: This separation membrane is a polyolefin-based two- or three-layered microporous film composed by combining a layer comprising polyethylene which is produced by a wet process and has the melting point of ≥125°C, with a layer comprising 20-70 wt.% of polypropylene which is produced by a dry process and has a melting point of ≥160°C and 80-30 wt.% of a heat-resistant filler. The micropore in the layer comprising polyethylene is made through the stretching/extraction process and its average size is ≤0.1 μm. The macropore in the layer comprising polypropylene and the heat-resistant filler is formed by the interfacial expansion therebetween and has an average pore size of ≥1 μm but ≤50 μm, film thickness of 9-30 μm, perforation strength of ≥0.15 N/μm, permeability of ≥1.5×10 -5 Darcy and melt fracture temperature of ≥170°C. COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供刚性,渗透性,质量稳定性和热稳定性优异的分离膜。 解决方案:该分离膜是聚烯烃基二层或三层微孔膜,其通过将通过湿法制备并具有≥125℃的熔点的聚乙烯层与包含 20-70重量%的聚丙烯,其通过干法生产并具有≥160℃的熔点和80-30重量%的耐热填料。 包含聚乙烯的层中的微孔通过拉伸/提取工艺制成,其平均尺寸≤0.1μm。 包含聚丙烯和耐热填料的层中的大孔由它们之间的界面膨胀形成,平均孔径≥1μm,≤50μm,膜厚9-30μm,穿孔强度≥0.15N/ μm,渗透率≥1.5×10 -5 达西,熔体断裂温度≥170℃。 版权所有(C)2009,JPO&INPIT

Patent Agency Ranking