Hydrophobic fuel cell component
    1.
    发明申请

    公开(公告)号:US20030025234A1

    公开(公告)日:2003-02-06

    申请号:US10184816

    申请日:2002-06-28

    Applicant: Graftech Inc.

    Abstract: An method for producing a material useful for forming a component for an electrochemical fuel cell is provided. More particularly, the component is formed of a sheet of a compressed mass of expanded graphite particles. The component is treated with a water resistant additive sufficient to provide utility as a component in an electrochemical fuel cell. Preferably, the water resistant additive is a fluoropolymer material. More preferably, the water resistant additive is a polytetrafluoroethylene material. The treatment preferably occurs by coating and/or impregnating the water resistant material in the sheet of graphite particles.

    Catalyst support material for fuel cell
    2.
    发明申请
    Catalyst support material for fuel cell 失效
    用于燃料电池的催化剂载体材料

    公开(公告)号:US20020172856A1

    公开(公告)日:2002-11-21

    申请号:US10185036

    申请日:2002-06-28

    Applicant: Graftech Inc.

    CPC classification number: H01M4/926 H01M4/8605 H01M4/92 H01M8/1007

    Abstract: A catalyst support material useful in a membrane electrode assembly is presented. The support catalyst material is elongate electrically anisotropic particles of flexible graphite, and the membrane electrode assembly includes a pair of electrodes, an ion exchange membrane having opposed surfaces positioned between the electrodes and a catalyst material on the inventive support, at least a portion of an opposed surface of the ion exchange membrane being adjacent the catalyst which is supported on the elongate electrically anisotropic particles of flexible graphite sheet.

    Abstract translation: 提出了可用于膜电极组件的催化剂载体材料。 载体催化剂材料是柔性石墨的细长的电各向异性颗粒,并且膜电极组件包括一对电极,离子交换膜,其具有位于电极之间的相对表面和本发明的载体上的催化剂材料,至少一部分 离子交换膜的相对表面与支撑在柔性石墨片的细长电各向异性颗粒上的催化剂相邻。

    Graphite composites and methods of making such composites
    5.
    发明申请
    Graphite composites and methods of making such composites 失效
    石墨复合材料和制备这种复合材料的方法

    公开(公告)号:US20040034151A1

    公开(公告)日:2004-02-19

    申请号:US10219558

    申请日:2002-08-15

    Applicant: Graftech Inc.

    CPC classification number: C08K3/04 Y02P20/544

    Abstract: The invention may be practiced to make graphite composites. Preferred composites which may be made in accordance with the invention include conductive polymeric composites (thermally or electrically), paint composites, battery composites, capacitor composites, and pollution abatement catalyst support composites. One method of making the graphite aforementioned composites includes introducing an intercalant into at least one interstice of at least one flake of natural graphite. The method also includes introducing a fluid into the at least one interstices of the flake. Preferably, the fluid comprises at least one of a sub-critical fluid, near critical point fluid, or a supercritical fluid. Furthermore the method includes blending the flake with a polymer, thereby forming a graphite-polymeric composite.

    Abstract translation: 可以实施本发明以制备石墨复合材料。 可以根据本发明制备的优选的复合材料包括导电聚合复合材料(热或电),涂料复合材料,电池复合材料,电容器复合材料和减少污染的催化剂载体复合材料。 制备石墨上述复合材料的一种方法包括将插入剂引入至少一片天然石墨的至少一个空隙中。 该方法还包括将流体引入片的至少一个间隙中。 优选地,流体包括亚临界流体,临界点流体或超临界流体中的至少一种。 此外,该方法包括将片状物与聚合物混合,从而形成石墨 - 聚合物复合材料。

    Adhesive backed graphite foil gasket and processes for making the same
    10.
    发明申请
    Adhesive backed graphite foil gasket and processes for making the same 审中-公开
    粘合剂背衬石墨箔垫片及其制造方法

    公开(公告)号:US20040118510A1

    公开(公告)日:2004-06-24

    申请号:US10326463

    申请日:2002-12-20

    Applicant: Graftech, Inc.

    CPC classification number: F16J15/122 F16L23/18 Y10T156/1062

    Abstract: Adhesive-backed graphite foil rings (62,64) are suited to forming a seal between a metal gasket plate (12) and adjacent pipe flanges (40, 42). To form the rings, a thin layer of adhesive (74) is applied in the form of a coating to a flexible graphite sheet (70). A release liner (80) may be applied over the adhesive layer. The rings (62,64) are cut from the adhesive coated flexible graphite sheet. In one method, the rings are die cut while leaving the release liner intact. After removal of extraneous material, a plurality of the rings remain attached to the release liner and can be peeled away from the liner as needed. In another method, a central cut-out portion (102) from a large adhesive-backed ring is later used to form a smaller adhesive-backed ring.

    Abstract translation: 粘合剂支撑的石墨箔环(62,64)适于在金属垫片板(12)和相邻的管道凸缘(40,42)之间形成密封。 为了形成环,将薄层粘合剂(74)以涂层的形式施加到柔性石墨片(70)上。 释放衬垫(80)可以施加在粘合剂层上。 从粘合剂涂覆的柔性石墨片切割环(62,64)。 在一种方法中,环被模切,同时使释放衬垫完好无损。 在去除外来材料之后,多个环保持附着到释放衬垫上,并且可以根据需要从衬里剥离。 在另一种方法中,来自大型粘合剂背衬环的中心切口部分(102)稍后用于形成较小的粘合剂背衬环。

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