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公开(公告)号：US5922492A
公开(公告)日：1999-07-13
申请号：US864079
申请日：1997-05-28
CPC分类号： H01M2/162 , B32B5/24 , H01M2/1653
摘要： A microporous polyolefin composite membrane, preferably for use as a battery separator, comprising a microporous polyolefin membrane and a polyolefin nonwoven fabric laminated on at least one surface of the microporous polyolefin membrane. The composite membrane has a thickness of 25 to 200 .mu.m, a porosity of 30 to 70%, an air permeability of 100 to 2000 sec/100 cc and a surface opening area ratio of 50 to 90% on at least one outer surface thereof. The microporous polyolefin membrane comprises a matrix polyolefin component which is a polyolefin having a weight average molecular weight of 5.times.10.sup.5 or more or a polyolefin mixture containing the polyolefin having a weight average molecular weight of 5.times.10.sup.5 or more, and has a porosity of 30 to 95%, an air permeability of 100 to 2000 sec/100 cc, an average open pore diameter of 0.001 to 1 .mu.m and a tensile strength at break of 500 kg/cm.sup.2 or more. The microporous polyolefin membrane may further comprise a shutdown polymer component to shut down the pores, thereby making the composite membrane impermeable. The polyolefin nonwoven fabric comprises fine fibers and has an air permeability of 0.1 to 100 sec/100 cc and a basis weight of 5 to 50 g/m.sup.2. The polyolefin nonwoven fabric prevents the composite membrane from melting down at a low temperature thereby preventing the short-circuit between the electrodes.
摘要翻译： 一种微孔聚烯烃复合膜，优选用作电池隔板，其包含微孔聚烯烃膜和聚烯烃无纺布，该聚烯烃无纺布层叠在微孔聚烯烃膜的至少一个表面上。 复合膜的至少一个外表面的厚度为25〜200μm，孔隙率为30〜70％，透气度为100〜2000秒/ 100cc，表面开口面积率为50〜90％ 。 微孔聚烯烃膜包括基重聚烯烃组分，其是重均分子量为5×10 5以上的聚烯烃或含有重均分子量为5×10 5以上的聚烯烃的聚烯烃混合物，其孔隙率为30〜95％ 透气度为100〜2000秒/ 100cc，平均开孔直径为0.001〜1μm，断裂强度为500kg / cm 2以上。 微孔聚烯烃膜还可以包括关闭聚合物组分以关闭孔，从而使复合膜不可渗透。 聚烯烃无纺布包括细纤维，透气度为0.1〜100秒/ 100cc，单位面积重量为5〜50g / m 2。 聚烯烃无纺布防止复合膜在低温下熔化，从而防止电极之间的短路。
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2.发明申请公开(公告)号：US20110089602A1
公开(公告)日：2011-04-21
申请号：US12681695
申请日：2008-10-20
CPC分类号： B29C47/0825 , B29B7/482 , B29B7/60 , B29C47/0021 , B29C47/38 , B29C47/402 , B29C47/60
摘要： The invention relates to a twin screw extruder for preparing a polymeric solution. The extruder includes an elongated housing having an inlet end, an outlet end, an extruder shaft length L and a pair of interconnecting bores disposed within the housing, a pair of elongated extruder shafts, each having an axis of rotation, the pair of elongated extruder shafts disposed within the pair of interconnecting bores and drivable in at least one direction of rotation, a plurality of extruder screw segments positioned along the pair of elongated extruder shafts in a fixed angular relationship therewith, the plurality of extruder screw segments selected to form multiple extruder stages. The invention also relates to a process for extruding a mixture of polymer and diluent.
摘要翻译： 本发明涉及一种用于制备聚合物溶液的双螺杆挤出机。 挤出机包括细长壳体，其具有入口端，出口端，挤出机轴长度L和布置在壳体内的一对互连孔，每对具有旋转轴线的一对细长挤出机轴，该对细长挤出机 设置在所述一对互连孔内并且可沿至少一个旋转方向驱动的轴;多个挤出机螺杆段，沿着所述一对细长挤出机轴以固定的角度关系定位，所述多个挤出机螺杆段被选择以形成多个挤出机 阶段 本发明还涉及挤出聚合物和稀释剂的混合物的方法。
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公开(公告)号：US08770824B2
公开(公告)日：2014-07-08
申请号：US12681695
申请日：2008-10-20
IPC分类号： B29C47/40
CPC分类号： B29C47/0825 , B29B7/482 , B29B7/60 , B29C47/0021 , B29C47/38 , B29C47/402 , B29C47/60
摘要： The invention relates to a twin screw extruder for preparing a polymeric solution. The extruder includes an elongated housing having an inlet end, an outlet end, an extruder shaft length L and a pair of interconnecting bores disposed within the housing, a pair of elongated extruder shafts, each having an axis of rotation, the pair of elongated extruder shafts disposed within the pair of interconnecting bores and drivable in at least one direction of rotation, a plurality of extruder screw segments positioned along the pair of elongated extruder shafts in a fixed angular relationship therewith, the plurality of extruder screw segments selected to form multiple extruder stages. The invention also relates to a process for extruding a mixture of polymer and diluent.
摘要翻译： 本发明涉及一种用于制备聚合物溶液的双螺杆挤出机。 挤出机包括细长壳体，其具有入口端，出口端，挤出机轴长度L和布置在壳体内的一对互连孔，每对具有旋转轴线的一对细长挤出机轴，该对细长挤出机 设置在所述一对互连孔内并且可沿至少一个旋转方向驱动的轴;多个挤出机螺杆段，沿着所述一对细长挤出机轴以固定的角度关系定位，所述多个挤出机螺杆段被选择以形成多个挤出机 阶段 本发明还涉及挤出聚合物和稀释剂的混合物的方法。
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公开(公告)号：US5183849A
公开(公告)日：1993-02-02
申请号：US717479
申请日：1991-06-19
申请人： Soichiro Yamaguchi , Koichi Matsuda , Hideo Goto
发明人： Soichiro Yamaguchi , Koichi Matsuda , Hideo Goto
CPC分类号： C08L71/123 , Y10S525/905
摘要： A polyphenylene ether composition excelling in heatproofness, shock resistance, weatherability, gloss, chemical resistance, and moldability comprises 100 parts by weight of a mixture of the following components (a) and (b) and from 0.1 to 10.0 parts by weight of an acid-modified wax (c):(a) polyphenylene ether or the combination of polyphenylene ether and an aromatic vinyl polymer and(b) a graft copolymer obtained by emulsion polymerizing 20 to 90 parts by weight of an aromatic vinyl compound to 10 to 80 parts by weight (as reduced to rubber content) of an ethylene-propylene-nonconjugate diene copolymer rubber latex having a gel content of from 40 to 95% by weight and an average dispersed rubber particle diameter of from 0.2 to 1.0 .mu.m by the use of a redox initiator composed of cumene hydroperoxide, ferrous sulfate, sodium pyrophosphate, and dextrose.
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