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公开(公告)号：US5814405A
公开(公告)日：1998-09-29
申请号：US690924
申请日：1996-08-01
IPC分类号： C08J9/00 , B01D39/16 , B01D71/36 , B29C55/00 , B82B1/00 , C08J5/18 , C08J9/14 , H05K1/03 , B29C55/02 , B32B5/26 , D04H13/00
CPC分类号： C08J5/18 , B01D39/1692 , B01D71/36 , B29C55/005 , B29K2027/18 , C08J2327/18 , H05K1/034 , Y10T428/249964 , Y10T428/249978
摘要： Microporous membranes are described and characterized as having a morphological microstructure of very highly elongated nodes interconnected by fibrils which form a structural network of voids or pores through the spaces between the nodes and fibrils, which voids or pores extend from one side of the membrane to the other. The membranes are highly uniform in terms of mass per volume, have very high strength and a very open microstructure.
摘要翻译： 微孔膜被描述和表征为具有通过原纤维相互连接的非常高度细长的节点的形态学微观结构，其通过节点和原纤维之间的空间形成空隙或孔的结构网络，空隙或孔从膜的一侧延伸到 其他。 膜在质量/体积方面高度均匀，具有非常高的强度和非常开放的微结构。
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公开(公告)号：US5916671A
公开(公告)日：1999-06-29
申请号：US802649
申请日：1997-02-18
申请人： Edwin G. Dauber , Daniel E. Hubis , Gordon L. McGregor , Raymond B. Minor , William P. Mortimer, Jr.
发明人： Edwin G. Dauber , Daniel E. Hubis , Gordon L. McGregor , Raymond B. Minor , William P. Mortimer, Jr.
CPC分类号： C08J9/32 , C08J2203/22 , C08J2327/18 , Y10T428/249983 , Y10T428/249986 , Y10T428/249991 , Y10T428/249992 , Y10T428/249993 , Y10T428/28 , Y10T428/2848
摘要： An improved gasket particularly suitable for use in sensitive environments is disclosed. The preferred gasket of the present invention comprises at least one layer of a composite material of porous polytetrafluoroethylene (PTFE) polymer and resilient expandable microspheres. The composite material provides a number of significant advantages over existing PTFE and similar clean gaskets, including better seal under less compressive pressure, sufficient resilience to permit reuse, and retained porosity--allowing pressure equalization in the equipment to occur through the gasket itself.
摘要翻译： 公开了一种特别适用于敏感环境的改进垫圈。 本发明优选的垫圈包括至少一层多孔聚四氟乙烯（PTFE）聚合物和弹性可膨胀微球的复合材料层。 复合材料提供了优于现有PTFE和类似的清洁垫片的许多显着优点，包括在较小的压缩压力下更好的密封，足够的弹性以允许再利用，并且通过垫片本身保持设备中的孔隙率允许压力平衡。
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公开(公告)号：US5094895A
公开(公告)日：1992-03-10
申请号：US511110
申请日：1990-04-19
CPC分类号： C08J5/2281 , C08J2327/12 , Y10T428/1393 , Y10T428/249958 , Y10T428/31544
摘要： A composite, porous, liquid-permeable article is provided which is a multilayer structure of discrete, bonded layers of porous, expanded polytetrafluoroethylene (EPTFE), which composite has its interior and exterior surfaces coated with a perfluoro ion exchange polymer to render the composite hydrophilic so as to resist gas locking in aqueous media wherein a composite diaphragm made therefrom, may also contain a water-soluble surfactant to assist in initial water penetration into the pores of the composite whereby an improved electrolytic cell is provided having the composite diaphragm as the porous separator in the electrolysis of alkali halide solutions and wherein the diaphragm is also useful as an improved filter medium.
摘要翻译： 提供了一种复合多孔透液制品，其是多孔，膨胀聚四氟乙烯（EPTFE）的分立的粘合层的多层结构，该复合材料的内表面和外表面涂覆有全氟离子交换聚合物，以使复合材料具有亲水性 以防止在其中由其制成的复合隔膜的水性介质中的气体锁定也可以含有水溶性表面活性剂以辅助初始水渗透到复合材料的孔中，由此提供改进的电解槽，其具有复合隔膜作为多孔 隔板在碱卤化物溶液的电解中，并且其中隔膜也可用作改进的过滤介质。
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4.发明授权Composition of expanded polytetrafluoroethylene and similar polymers and method for producing same 失效膨胀聚四氟乙烯和类似聚合物的组成及其制备方法
公开(公告)号：US5429869A
公开(公告)日：1995-07-04
申请号：US023642
申请日：1993-02-26
IPC分类号： C08J9/32 , C08K7/00 , C08K9/10 , C08L23/00 , C08L23/02 , C08L27/18 , H01B3/44 , H01B7/02 , H01B11/18 , H01B13/14 , D02G3/02
CPC分类号： C08J9/32 , C08K9/10 , H01B11/1839 , H01B7/0233 , C08J2327/18 , Y10S57/903 , Y10S57/905 , Y10S57/907 , Y10T428/2913 , Y10T428/2927 , Y10T428/2929 , Y10T428/2935 , Y10T428/294
摘要： The present invention provides improved compositions of expanded polytetrafluoroethylene (PTFE) and similar polymers and methods for forming and using such compositions. In its preferred embodiment, the present invention employs a mixture of PTFE and expandable thermoplastic microspheres. Through application of an energy source to the mixture, a coherent three dimensional expansion of PTFE can be achieved. The expanded mixture has many of the same beneficial properties of mechanically expanded PTFE and numerous properties previously unavailable with expanded PTFE products.
摘要翻译： 本发明提供了改进的聚四氟乙烯（PTFE）组合物和类似的聚合物以及用于形成和使用这些组合物的方法。 在其优选的实施方案中，本发明使用PTFE和可膨胀的热塑性微球的混合物。 通过在混合物中施加能量源，可以实现PTFE的相干三维膨胀。 膨胀的混合物具有许多与机械膨胀的PTFE相同的有益特性，以及之前不能使用膨胀PTFE产品的众多特性。
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公开(公告)号：US5183545A
公开(公告)日：1993-02-02
申请号：US792665
申请日：1991-11-15
IPC分类号： C08J5/22
CPC分类号： C08J5/2281 , C08J2327/18
摘要： A composite, porous, liquid-permeable article is provided which is a multilayer structure of discrete, bonded layers of porous, expanded polytetrafluoroethylene (EPTFE). The composite has its interior and exterior surfaces coated with a perfluoro ion exchange polymer to render the composite hydrophilic so as to resist gas locking in aqueous media. Initially, the diaphragm may also contain a water-soluble surfactant to assist in initial water penetration into the pores of the composite. An improved electrolytic cell is provided having the composite diaphragm as the porous separator in the electrolysis of alkali halide solutions. The diaphragm is also useful as an improved filter medium.
摘要翻译： 提供了一种复合多孔透液制品，其是多孔，膨胀聚四氟乙烯（EPTFE）的离散粘合层的多层结构。 该复合材料的内表面和外表面涂覆有全氟离子交换聚合物，以使复合材料具有亲水性，从而抵抗在水性介质中的气体锁定。 最初，隔膜还可以含有水溶性表面活性剂，以帮助初始水渗透到复合材料的孔中。 在碱卤化物溶液的电解中，提供了一种改进的电解槽，其具有复合隔膜作为多孔隔板。 隔膜也可用作改进的过滤介质。
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6.发明授权Process for producing a high strength porous polytetrafluoroethylene product having a coarse microstructure 失效具有粗糙组织的高强度多孔聚四氟乙烯制品的制造方法
公开(公告)号：US4482516A
公开(公告)日：1984-11-13
申请号：US416466
申请日：1982-09-10
IPC分类号： B29C67/20 , B29C55/00 , B29C59/00 , B29K27/18 , C08J5/18 , C08J9/00 , D01F6/12 , B29C17/02 , B29D27/00
CPC分类号： C08J5/18 , B29C55/005 , D01F6/12 , B29K2027/18 , B29K2105/04 , C08J2327/18
摘要： Porous polytetrafluoroethylene materials having high strength and coarse microstructure are produced by densifying the materials after removal of lubricant and then stretching. The term, "coarse," is used to indicate that the nodes are larger, the fibrils are longer, and the effective pore size is larger than conventional materials of the same matrix tensile strength. Densification can be achieved through the use of such devices as a densification die, a calender machine, or a press. This invention can be used to produce all kinds of shaped articles.
摘要翻译： 通过在除去润滑剂之后对材料进行致密化并然后拉伸来制造具有高强度和粗糙微结构的多孔聚四氟乙烯材料。 术语“粗”用于表示节点较大，原纤维较长，有效孔径大于相同基质拉伸强度的常规材料。 致密化可以通过使用诸如致密模具，压光机或压机的这种装置来实现。 本发明可用于生产各种成型制品。
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公开(公告)号：US4478665A
公开(公告)日：1984-10-23
申请号：US459804
申请日：1983-01-21
申请人： Daniel E. Hubis
发明人： Daniel E. Hubis
CPC分类号： C08J9/28 , A61F2/00 , B29C55/023 , C08J5/12 , B29K2027/18 , C08J2327/18
摘要： A method for producing a multi-component, porous PTFE article. Components of PTFE containing a liquid lubricant are placed in intimate contact, dried and then stretched in one or more directions. The PTFE components may optionally contain a filler. The resultant product has a virtually uninterrupted structure at the join and possesses very high bond strengths.
摘要翻译： 一种多组分多孔PTFE制品的制造方法。 将含有液体润滑剂的PTFE的组分紧密接触，干燥，然后在一个或多个方向上拉伸。 PTFE组分可以任选地含有填料。 所得产品在连接处具有实质上不间断的结构并且具有非常高的粘结强度。
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8.发明授权Multi-component, highly porous, high strength PTFE article and method for manufacturing same 失效多组分，高度多孔，高强度PTFE制品及其制造方法
公开(公告)号：US4385093A
公开(公告)日：1983-05-24
申请号：US204509
申请日：1980-11-06
申请人： Daniel E. Hubis
发明人： Daniel E. Hubis
IPC分类号： B32B5/32 , A61L27/16 , A61L27/56 , B29C55/00 , B29C55/02 , B29C59/00 , B29C67/20 , B32B27/20 , B32B27/30 , C08J5/12 , C08J9/00 , C08J9/28 , C08L27/06 , C08L27/18 , B32B3/26
CPC分类号： C08J5/121 , A61L27/16 , A61L27/56 , B29C55/023 , C08J9/28 , B29K2027/18 , C08J2327/18 , Y10S277/946 , Y10S428/91 , Y10T428/249981 , Y10T428/249986 , Y10T428/25 , Y10T428/251 , Y10T428/252 , Y10T428/26 , Y10T428/269 , Y10T428/2918 , Y10T428/30 , Y10T428/3154 , Y10T428/31544 , Y10T428/31652 , Y10T428/31663
摘要： A method for producing a multi-component, porous PTFE article. Components of PTFE containing a liquid lubricant are placed in intimate contact, dried and then stretched in one or more directions. The PTFE components may optionally contain a filler. The resultant product has a virtually uninterrupted structure at the join and possesses very high bond strengths.
摘要翻译： 一种多组分多孔PTFE制品的制造方法。 将含有液体润滑剂的PTFE的组分紧密接触，干燥，然后在一个或多个方向上拉伸。 PTFE组分可以任选地含有填料。 所得产品在连接处具有实质上不间断的结构并且具有非常高的粘结强度。
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