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    • 3. 发明申请
    • METHOD OF CONTACT COATING A MICRONEEDLE ARRAY
    • 接触涂层麦克风阵列的方法
    • WO2006055844A2
    • 2006-05-26
    • PCT/US2005/041993
    • 2005-11-18
    • 3M INNOVATIVE PROPERTIES COMPANYCHOI, Hye-okKNUTSON, Gordon P.,DAVID, Moses M.,
    • CHOI, Hye-okKNUTSON, Gordon P.,DAVID, Moses M.,
    • B05D1/00A61M37/00
    • B05D1/28A61B17/205A61K9/0021A61M37/0015A61M2037/0053
    • A method of coating a microneedle array by applying a coating fluid using a flexible film in a brush-like manner. A method of coating a microneedle array comprising: providing a microneedle array having a substrate and a plurality of microneedles; providing a flexible film; providing a coating solution comprising a carrier fluid and a coating material; applying the coating solution onto a first major surface of the flexible film; performing a transfer step of bringing the first major surface of the flexible film into contact with the microneedles and removing the flexible film from contact with the microneedles; and allowing the carrier fluid to evaporate. Also, a method of coating a microneedle array by applying a coating solution onto a first major surface of a coating substrate to form a layer of applied coating solution having a thickness equal to or less than the height of at least one of the microneedles and performing a transfer step of bringing the first major surface of the coating substrate into contact with the microneedles and removing the coating substrate from contact with the microneedles, thereby transferring at least a portion of the coating solution to the microneedle array.
    • 通过以类似刷子的方式使用柔性膜施加涂布液来涂布微针阵列的方法。 一种涂覆微针阵列的方法,包括:提供具有基底和多个微针的微针阵列; 提供柔性膜; 提供包含载体流体和涂层材料的涂层溶液; 将涂布溶液施加到柔性膜的第一主表面上; 执行将柔性膜的第一主表面与微针接触并移除柔性膜以与微针接触的转印步骤; 并允许载体液体蒸发。 此外,通过将涂布溶液涂覆在涂布基材的第一主表面上以形成具有等于或小于至少一个微针的高度的涂覆涂层溶液的层并涂覆微针阵列的方法,并执行 将涂布基板的第一主表面与微针接触并移除涂布基板与微针接触的转印步骤,从而将至少一部分涂布溶液转印到微针阵列上。
    • 6. 发明申请
    • FUEL CELL GAS DIFFUSION LAYER
    • 燃料电池气体扩散层
    • WO2005034271A2
    • 2005-04-14
    • PCT/US2004/028750
    • 2004-09-03
    • 3M INNOVATIVE PROPERTIES COMPANY
    • MEKALA, David R.,STEGINK, David W.,DAVID, Moses M.,FRISK, Joseph W.,
    • H01M8/02
    • H01M8/0239H01M8/023H01M8/0234H01M8/0243H01M8/0245H01M2008/1095Y02P70/56Y10T428/3154
    • The present invention provides a fuel cell gas diffusion layer comprising a hydrophilic surface layer having a thickness of no more than 1 micron, and, thereunder, a hydrophobic second layer comprising a fluoropolymer having a thickness of at least 5 microns. Additionally, the present invention provides a method of making a fuel cell gas diffusion layer comprising the steps of a) providing a carbon fiber construction; b) coating at least the upper surface of the carbon fiber construction with composition which comprises a fluoropolymer; and c) exposing the upper surface to at least one plasma, such as a silane plasma, so as to generate a hydrophilic surface layer having a thickness of no more than 1 micron. The present invention also provides a method additionally comprising the step of partially covering the upper surface with a mask having windows according to a pattern, such that the hydrophilic surface layer is applied according to the pattern. The present invention also provides a method wherein the carbon fiber construction is provided as a roll good and the step of exposing said upper surface to at least one plasma is performed in continuous roll-to-roll fashion.
    • 本发明提供一种燃料电池气体扩散层,其包括厚度不超过1微米的亲水性表面层,并且其后,包含厚度至少为5微米的含氟聚合物的疏水性第二层。 另外,本发明提供一种制造燃料电池气体扩散层的方法,包括以下步骤:a)提供碳纤维结构; b)至少涂覆含有含氟聚合物的组合物的碳纤维结构的上表面; 和c)将上表面暴露于至少一种等离子体,例如硅烷等离子体,以产生厚度不大于1微米的亲水性表面层。 本发明还提供一种方法,其还包括用根据图案的具有窗口的掩模部分地覆盖上表面的步骤,使得根据图案施加亲水性表面层。 本发明还提供了一种方法,其中碳纤维结构被提供为辊状,并且以连续的卷对卷方式进行将所述上表面暴露于至少一个等离子体的步骤。
    • 9. 发明申请
    • PLASMA REACTOR INCLUDING HELICAL ELECTRODES
    • 包括螺旋电极的等离子体反应器
    • WO2004068530A1
    • 2004-08-12
    • PCT/US2003/039176
    • 2003-12-09
    • 3M INNOVATIVE PROPERTIES COMPANY
    • DAVID, Moses M.,GIFFORD, Michael, C
    • H01J37/32
    • C23C16/507C23C16/545H01J37/321H01J37/3277
    • A device for forming an ion sheath in a plasma to deposit coatings on a non-conducting substrate (12). The device comprises a tubular reaction chamber (56) having an outer surface wound helically with a first electrode (60) having a first width. Helical winding of the first electrode provides a plurality of first wraps around the outer surface of the tubular reaction chamber. The device further includes a second electrode (58) having a second width that is larger than the first width. Helical winding of the second electrode provides a plurality of second wraps alternating with the first wraps around the outer surface of the tubular reaction chamber. An ion sheath in a plasma forms to a thickness extending at least to the longitudinal axis of the tubular reaction chamber when the first electrode has a connection to a source of radio-frequency power and the second electrode provides a path to ground.
    • 一种用于在等离子体中形成离子鞘以在非导电衬底(12)上沉积涂层的装置。 该装置包括管状反应室(56),其外表面与第一电极(60)螺旋形地具有第一宽度。 第一电极的螺旋缠绕在管状反应室的外表面周围提供多个第一包裹物。 该装置还包括具有大于第一宽度的第二宽度的第二电极(58)。 第二电极的螺旋缠绕提供与管状反应室的外表面围绕第一卷绕交替的多个第二卷绕物。 当第一电极具有与射频功率源的连接并且第二电极提供到地的路径时,等离子体中的离子鞘形成至少延伸至管状反应室的纵向轴线的厚度。