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93 条记录 (耗时 0.06 秒)

    Porous filter media and membrane support means
    6.
    发明授权
    Porous filter media and membrane support means 失效
    多孔过滤介质和膜支撑装置

    公开(公告)号：US4904385A

    公开(公告)日：1990-02-27

    申请号：US196176

    申请日：1988-05-19

    申请人： Ritchie A. Wessling ,  Larry D. Yats ,  Alan F. Burmester

    发明人： Ritchie A. Wessling ,  Larry D. Yats ,  Alan F. Burmester

    IPC分类号： B01D39/16 ,  B01D39/20 ,  B01D69/10 ,  D21H27/08

    CPC分类号： D21H27/08 ,  B01D39/163 ,  B01D39/2024 ,  B01D69/10

    摘要： A method for filtering liquid or gaseous materials where the filtration is conducted with a porous filter media prepared from an aqueous wet-laid, lofted fiber-reinforced composite sheet, the composite sheet comprising a heat fusible polymer, reinforcing fibers and a binder. The random fiber composite sheet can be selectively lofted or recompressed to form filter media having variable porosity. Also, a membrane support means prepared by applying or treating the fiber-reinforced composite sheet with a discriminating membrane layer.

    摘要翻译： 一种用于过滤液体或气体材料的方法，其中用由湿法成网的高纬纤维增强复合片材制备的多孔过滤介质进行过滤，所述复合片材包含热熔聚合物，增强纤维和粘合剂。 无规纤维复合片材可以选择性地放置或再压缩以形成具有可变孔隙率的过滤介质。 而且，通过用鉴别膜层施加或处理纤维增强复合片而制备的膜支撑装置。

    Low heat release polymeric composites
    7.
    发明授权
    Low heat release polymeric composites 失效
    低放热聚合物复合材料

    公开(公告)号：US5419957A

    公开(公告)日：1995-05-30

    申请号：US245152

    申请日：1994-05-17

    申请人： Patrick H. Martin ,  Peter K. Kim ,  Stephen E. Bales ,  Ritchie A. Wessling

    发明人： Patrick H. Martin ,  Peter K. Kim ,  Stephen E. Bales ,  Ritchie A. Wessling

    IPC分类号： B32B27/08 ,  C08K7/02 ,  B32B5/24

    CPC分类号： B32B27/08 ,  C08K7/02 ,  Y10T428/249962 ,  Y10T428/249964 ,  Y10T428/249989

    摘要： This invention relates to a low heat release, low density, fiber-reinforced composite comprising a matrix comprising a thermoplastic polymer selected from the group consisting of polyarylsulfone, polyethersulfone, polyetheretherketone, polyetherketoneketone, a copolycarbonate of 4,4'-thiodiphenol and at least one member of the group consisting of bisphenol A, 9,9-bis(4-hydroxyphenyl)fluorene, and 1,1-bis(4-hydroxyphenyl)-1-phenyl ethane, a copolycarbonate of bisphenol A and 9,9-bis(4-hydroxyphenyl)fluorene, 1,1-bis(4-hydroxyphenyl)-1-phenyl ethane polycarbonate, bisphenol A polycarbonate, and polyetherimide, and from about 10 to about 70 percent by weight of the composite of randomly oriented reinforcing fibers, less than 0.5 inch in length, distributed throughout the matrix. The matrix has a void volume of from about 20 to about 90 percent by volume. The composite has a thermoplastic skin layer on each of the major surfaces thereof. A process for making the composite is also disclosed.

    摘要翻译： 本发明涉及一种低放热，低密度纤维增强复合材料，其包含基质，其包含选自聚芳基砜，聚醚砜，聚醚醚酮，聚醚酮酮，4,4'-硫代二酚的共聚碳酸酯和至少一种 由双酚A，9,9-双（4-羟基苯基）芴和1,1-双（4-羟基苯基）-1-苯基乙烷组成的组，双酚A的共聚碳酸酯和9,9-双（ 4-羟基苯基）芴，1,1-双（4-羟基苯基）-1-苯基乙烷聚碳酸酯，双酚A聚碳酸酯和聚醚酰亚胺，和约10至约70重量％的无规取向增强纤维的复合材料 长度大于0.5英寸，分布在整个矩阵中。 基质具有约20至约90体积％的空隙体积。 复合材料在其每个主表面上具有热塑性表层。 还公开了制备复合材料的方法。

    Low heat release polymeric composites
    8.
    发明授权
    Low heat release polymeric composites 失效
    低放热聚合物复合材料

    公开(公告)号：US5490967A

    公开(公告)日：1996-02-13

    申请号：US371332

    申请日：1995-01-11

    申请人： Patrick H. Martin ,  Stephen E. Bales ,  Peter K. Kim ,  Ritchie A. Wessling

    发明人： Patrick H. Martin ,  Stephen E. Bales ,  Peter K. Kim ,  Ritchie A. Wessling

    IPC分类号： B32B27/08 ,  C08K7/02 ,  B32B5/24

    CPC分类号： B32B27/08 ,  C08K7/02 ,  Y10T428/249962 ,  Y10T428/249964 ,  Y10T428/249989

    摘要： This invention relates to a low heat release, low density, fiber-reinforced composite comprising a matrix comprising a thermoplastic polymer selected from the group consisting of polyarylsulfone, polyethersulfone, polyetheretherketone, polyetherketoneketone, a copolycarbonate of 4,4'-thiodiphenol and at least one member of the group consisting of bisphenol A, 9,9-bis(4-hydroxyphenyl) fluorene, and 1,1-bis-(4-hydroxyphenyl)-1-phenyl ethane, a copolycarbonate of bisphenol A and 9,9-bis(4-hydroxyphenyl) fluorene, 1,1-bis(4-hydroxyphenyl)-1-phenyl ethane polycarbonate, bisphenol A polycarbonate, and polyetherimide, and from about 10 to about 70 percent by weight of the composite of randomly oriented reinforcing fibers, less than 0.5 inch in length, distributed throughout the matrix. The matrix has a void volume of from about 20 to about 90 percent by volume. The composite has a thermoplastic skin layer on each of the major surfaces thereof. A process for making the composite is also disclosed.

    摘要翻译： 本发明涉及一种低放热，低密度纤维增强复合材料，其包含基质，其包含选自聚芳基砜，聚醚砜，聚醚醚酮，聚醚酮酮，4,4'-硫代二酚的共聚碳酸酯和至少一种 由双酚A，9,9-双（4-羟基苯基）芴和1,1-双 - （4-羟基苯基）-1-苯基乙烷组成的组的成员，双酚A的共聚碳酸酯和9,9-双 （4-羟基苯基）芴，1,1-双（4-羟基苯基）-1-苯基乙烷聚碳酸酯，双酚A聚碳酸酯和聚醚酰亚胺，和约10至约70重量％的无规取向增强纤维的复合材料， 长度小于0.5英寸，分布在整个矩阵中。 基质具有约20至约90体积％的空隙体积。 复合材料在其每个主表面上具有热塑性表层。 还公开了制备复合材料的方法。