Method for stable rapid spinning of a polybenzoxazole or
polybenzothiazole fiber
    2.
    发明授权
    Method for stable rapid spinning of a polybenzoxazole or polybenzothiazole fiber 失效
    稳定快速纺丝聚苯并恶唑或聚苯并噻唑纤维的方法

    公开(公告)号:US5385702A

    公开(公告)日:1995-01-31

    申请号:US207989

    申请日:1994-03-08

    CPC分类号: D01F6/74

    摘要: Polybenzoxazole or polybenzothiazole polymer dopes are spun through a spinneret having an orifice density of more than 0.25 per cm.sup.2 to form filaments. The filaments formed then pass through an air gap which has a gas flowing into it at a temperature of between about 5.degree. C. to about 100.degree. C. and at a flow rate between about 0.1 meters/second and about 2.0 meters/second. The filaments cool in the air gap and are then coagulated. During or after coagulation the filaments are combined into one or more fibers. By this method of controlling the temperature in the air gap it is possible to stably spin polybenzoxazole or polybenzothiazole fibers at relatively high final line speeds.

    摘要翻译: 聚苯并恶唑或聚苯并噻唑聚合物掺杂物通过孔密度大于0.25 / cm2的喷丝头纺丝以形成长丝。 所形成的长丝然后通过气流,气隙在大约5℃至大约100℃的温度和约0.1米/秒到约2.0米/秒之间的流速下流入其中。 细丝在气隙中冷却,然后凝结。 在凝结期间或之后,将细丝组合成一根或多根纤维。 通过这种控制气隙温度的方法,可以以相对较高的最终线速度稳定地旋转聚苯并恶唑或聚苯并噻唑纤维。

    Process for the preparation of polybenzoxazole and polybenzothiazole
filaments and fibers
    3.
    发明授权
    Process for the preparation of polybenzoxazole and polybenzothiazole filaments and fibers 失效
    制备聚苯并恶唑和聚苯并噻唑长丝和纤维的方法

    公开(公告)号:US5976447A

    公开(公告)日:1999-11-02

    申请号:US668784

    申请日:1996-06-24

    CPC分类号: D01F6/74

    摘要: A continuous process for heating a polybenzazole or polybenzothiazole filament, which includes the step of heating the filament to a temperature of at least 100.degree. C. but no greater than 290.degree. C. while applying a tension thereto of at least 3.5 grams per denier, which is carried out at a line speed of at least 100 m/minute; and there is no prior or subsequent heating of the fiber to any temperature greater than 300.degree. C. It has been discovered that placing tension on the filament while it is dried increases its tensile modulus without a significant decrease in its tensile strength.

    摘要翻译: 一种用于加热聚吲哚或聚苯并噻唑长丝的连续方法,其包括将长丝加热至至少100℃但不高于290℃的温度,同时向其施加至少3.5克/旦尼尔的张力, 其以至少100m /分钟的线速度进行; 并且没有将纤维预先或随后加热到大于300℃的任何温度。已经发现在干燥时在丝上张力增加了其拉伸模量而不显着降低拉伸强度。

    Process for preparing polybenzazole filaments and fiber
    5.
    发明授权
    Process for preparing polybenzazole filaments and fiber 失效
    制备聚吲哚长丝和纤维的方法

    公开(公告)号:US5756031A

    公开(公告)日:1998-05-26

    申请号:US793038

    申请日:1997-01-30

    CPC分类号: D01D5/26 D01F6/74

    摘要: A process for the preparation of polybenzazole filaments which comprises (a) extruding a solution of polybenzazole polymer in a mineral acid through a spinneret having at least 100 holes, which are arranged to form a annular pattern around the center of the spinneret, the center and at least two radial sections of the spinneret having no holes and an average width which is at least about 3 times the minimum pitch of the holes, thereby forming filaments of the polymer solution; (b) drawing the filaments of the polymer solution through a quench chamber while providing a substantially radial gas flow therein across the spinneret from at least two different directions; and (c) washing and drying the filaments of the polymer solution under conditions sufficient to form polybenzazole filaments.

    摘要翻译: PCT No.PCT / US95 / 10271 Sec。 371日期1997年1月30日 102(e)日期1997年1月30日PCT提交1995年8月10日PCT公布。 WO96 / 05341 PCT出版物 日期1996年2月22日一种制备聚吲唑长丝的方法,其包括(a)通过具有至少100个孔的喷丝头挤出无机酸中的聚苯并唑聚合物溶液,所述喷丝头被布置成围绕 喷丝头,中心和喷丝头的至少两个径向部分没有孔,平均宽度为孔的最小间距的至少约3倍,从而形成聚合物溶液的长丝; (b)将聚合物溶液的长丝拉过淬火室,同时从至少两个不同的方向穿过喷丝头提供基本上径向的气流; 和(c)在足以形成聚吲哚长丝的条件下洗涤和干燥聚合物溶液的长丝。

    Moisture resistant photovoltaic devices with exposed conductive grid
    8.
    发明授权
    Moisture resistant photovoltaic devices with exposed conductive grid 有权
    防潮光伏器件具有裸露的导电栅格

    公开(公告)号:US08921148B2

    公开(公告)日:2014-12-30

    申请号:US13005426

    申请日:2011-01-12

    摘要: The present invention provides strategies for improving the adhesion among two or more of transparent conducting oxides, electrically conductive grid materials, and dielectric barrier layers. As a consequence, these strategies are particularly useful in the fabrication of heterojunction photovoltaic devices such as chalcogenide-based solar cells. When the barrier is formed and then the grid is applied to vias in the barrier, the structure has improved moisture barrier resistance as compared to where the barrier is formed over or around the grid. Adhesion is improved to such a degree that grid materials and dielectric barrier materials can cooperate to provide a hermetic seal over devices to protect against damage induced by environmental conditions, including damage due to water intrusion. This allows the collection grids to be at least partially exposed above the dielectric barrier, making it easy to make electronic connection to the devices.

    摘要翻译: 本发明提供了改善透明导电氧化物,导电栅格材料和电介质阻挡层中的两种或更多种之间的粘附性的策略。 因此,这些策略在异质结光伏器件如硫族化物基太阳能电池的制造中特别有用。 当形成屏障,然后将栅格施加到屏障中的通孔时,与在栅格上方或栅格周围形成屏障的情况相比,结构具有改善的防潮性。 附着力提高到网格材料和介电阻挡材料可以配合以提供装置上的气密密封以防止由环境条件引起的损坏(包括由于水侵入引起的损坏)的程度。 这允许收集栅极至少部分地暴露在电介质阻挡层之上,使得容易进行到器件的电子连接。

    MOISTURE RESISTANT PHOTOVOLTAIC DEVICES WITH EXPOSED CONDUCTIVE GRID
    10.
    发明申请
    MOISTURE RESISTANT PHOTOVOLTAIC DEVICES WITH EXPOSED CONDUCTIVE GRID 有权
    防水电导体的防潮光伏器件

    公开(公告)号:US20110168243A1

    公开(公告)日:2011-07-14

    申请号:US13005426

    申请日:2011-01-12

    IPC分类号: H01L31/06 H01L31/18

    摘要: The present invention provides strategies for improving the adhesion among two or more of transparent conducting oxides, electrically conductive grid materials, and dielectric barrier layers. As a consequence, these strategies are particularly useful in the fabrication of heterojunction photovoltaic devices such as chalcogenide-based solar cells. When the barrier is formed and then the grid is applied to vias in the barrier, the structure has improved moisture barrier resistance as compared to where the barrier is formed over or around the grid. Adhesion is improved to such a degree that grid materials and dielectric barrier materials can cooperate to provide a hermetic seal over devices to protect against damage induced by environmental conditions, including damage due to water intrusion. This allows the collection grids to be at least partially exposed above the dielectric barrier, making it easy to make electronic connection to the devices.

    摘要翻译: 本发明提供了改善透明导电氧化物,导电栅格材料和电介质阻挡层中的两种或更多种之间的粘附性的策略。 因此,这些策略在异质结光伏器件如硫族化物基太阳能电池的制造中特别有用。 当形成屏障,然后将栅格施加到屏障中的通孔时,与在栅格上方或栅格周围形成屏障的情况相比,结构具有改善的防潮性。 附着力提高到网格材料和介电阻挡材料可以配合以提供装置上的气密密封以防止由环境条件引起的损坏(包括由于水侵入引起的损坏)的程度。 这允许收集栅极至少部分地暴露在电介质阻挡层之上,使得容易进行到器件的电子连接。