Coated fibrous pipe insulation system

    公开(公告)号:US20050022892A1

    公开(公告)日:2005-02-03

    申请号:US10850512

    申请日:2004-05-20

    CPC分类号: F16L59/023

    摘要: A pipe insulation system includes a tubular core of fibrous insulation and a flexible closed cell foam layer overlaying the core and forming an outer surface of the system. The tubular core has a first longitudinal slit extending completely through the wall of the core and a second longitudinal slit in the inner surface of the tubular core, opposite the first slit, that forms a hinge permitting the tubular core to be opened and closed to place the system about a pipe. Preferably, the foam layer has a water vapor permeance rating of 0.02 perms or less and the pipe insulation system includes a seal for sealing the first slit so that an outer surface layer of the sealed system formed by the foam layer and seal has a water vapor permeance rating of 0.02 perms or less.

    Coated fibrous pipe insulation system
    2.
    发明授权
    Coated fibrous pipe insulation system 有权
    涂层纤维管绝缘系统

    公开(公告)号:US06782922B1

    公开(公告)日:2004-08-31

    申请号:US10449781

    申请日:2003-05-30

    IPC分类号: F16L914

    CPC分类号: F16L59/023

    摘要: A pipe insulation system includes a tubular core of fibrous insulation that is coated with a pliable polymer. The coated tubular core has a first longitudinal slit extending completely through the wall of the core and a second longitudinal slit in the inner surface of the tubular core that is opposite the first slit and forms a hinge that permits the tubular core to be opened and closed to place the coated tubular core about a pipe. Preferably, the coating has a water vapor permeance rating of 0.02 perms or less and the system includes a seal for sealing the first slit so that an outer surface layer of the sealed coated tubular core formed by the coating and seal has a water vapor permeance rating of 0.02 perms or less for use on cold pipe systems.

    摘要翻译: 管道绝缘系统包括涂覆有柔韧聚合物的纤维绝缘体的管状芯。 涂覆的管状芯具有完全延伸穿过芯的壁的第一纵向狭缝和与第一狭缝相对的管状芯的内表面中的第二纵向狭缝,并形成允许管状芯打开和关闭的铰链 将涂覆的管状芯体围绕管道放置。 优选地,涂层的水蒸气渗透等级为0.02次以下,并且系统包括用于密封第一狭缝的密封件,使得由涂层和密封件形成的密封涂覆的管状芯体的外表面层具有水蒸气渗透率 为0.02管以下,用于冷管系统。

    Macroscopic ordered assembly of carbon nanotubes
    3.
    发明申请
    Macroscopic ordered assembly of carbon nanotubes 审中-公开
    宏观有序的碳纳米管组装

    公开(公告)号:US20050169830A1

    公开(公告)日:2005-08-04

    申请号:US10759356

    申请日:2004-01-16

    摘要: The present invention is directed to the creation of macroscopic materials and objects comprising aligned nanotube segments. The invention entails aligning single-wall carbon nanotube (SWNT) segments that are suspended in a fluid medium and then removing the aligned segments from suspension in a way that macroscopic, ordered assemblies of SWNT are formed. The invention is further directed to controlling the natural proclivity of nanotube segments to self assemble into ordered structures by modifying the environment of the nanotubes and the history of that environment prior to and during the process. The materials and objects are “macroscopic” in that they are large enough to be seen without the aid of a microscope or of the dimensions of such objects. These macroscopic, ordered SWNT materials and objects have the remarkable physical, electrical, and chemical properties that SWNT exhibit on the microscopic scale because they are comprised of nanotubes, each of which is aligned in the same direction and in contact with its nearest neighbors. An ordered assembly of closest SWNT also serves as a template for growth of more and larger ordered assemblies. An ordered assembly further serves as a foundation for post processing treatments that modify the assembly internally to specifically enhance selected material properties such as shear strength, tensile strength, compressive strength, toughness, electrical conductivity, and thermal conductivity.

    摘要翻译: 本发明涉及包括对准的纳米管段的宏观材料和物体的产生。 本发明需要将悬浮在流体介质中的单壁碳纳米管(SWNT)段对准,然后以形成SWNT的宏观有序组件的方式从悬浮液中除去对准的段。 本发明进一步涉及通过在过程之前和过程中修改纳米管的环境和该环境的历史来控制纳米管段的自然倾向自我组装成有序结构。 材料和物体是“宏观的”,因为它们足够大以便在没有显微镜或这些物体的尺寸的情况下被看到。 这些宏观有序的SWNT材料和物体具有显着的物理,电学和化学性质,SWNT在微观尺度上显示,因为它们由纳米管组成,其中每个纳米管沿相同方向排列并与其最近的邻近物接触。 最近的SWNT的有序组件也可以作为增加更多和更大订单组件的模板。 订购的组件还用作后处理处理的基础,其在内部改变组件以特异性地增强选定的材料性能,例如剪切强度,抗拉强度,抗压强度,韧性,导电性和导热性。