Methods for splicing dielectric strength tapes utilized in communication cables
    1.
    发明授权
    Methods for splicing dielectric strength tapes utilized in communication cables 失效
    用于拼接通信电缆中使用的介电强度带的方法

    公开(公告)号:US06217809B1

    公开(公告)日:2001-04-17

    申请号:US09163279

    申请日:1998-09-29

    IPC分类号: B32B3100

    CPC分类号: G02B6/4432 G02B6/4486

    摘要: A method for splicing an improved strength tape having longitudinally extended strands comprises the trimming or patterning of the strands of the respective ends that are to be joined so that the ends can be mated together in a meshing arrangement. The two ends are placed in a splicing tray. An adhesive film is interposed between the two ends and the splice tray is closed. The splice tray is placed in a compression molding press which applies a predetermined time-temperature-pressure treatment profile which cures the adhesive film. The resulting splice has essentially the same physical dimensions of the strength tape, and similar stiffness characteristics to that of the strength tape. Further, the strength of the splice is more than sufficient for use in a communication cable. Because the complete splice process can be completed in less than 4 to 5 minutes, the splice can be performed on-line with the use of a strength tape accumulator.

    摘要翻译: 用于拼接具有纵向延伸的股线的改进的强化带的方法包括修剪或图案化待连接的各个端部的股线,使得端部可以以啮合布置配合在一起。 两端放置在拼接托盘中。 在两端之间插入粘合膜,并且接合托盘关闭。 接合盘被放置在压缩成型压机中,该压缩模压机施加固化粘合剂膜的预定的时间 - 温度 - 压力的处理轮廓。 所得到的接头具有与强度带基本上相同的物理尺寸,以及与强度带相似的刚度特性。 此外,拼接的强度足以用于通信电缆中。 因为完整的拼接过程可以在不到4到5分钟的时间内完成,所以可以使用强度带式蓄能器在线进行拼接。

    Dry core indoor/outdoor fiber optic cable
    2.
    发明授权
    Dry core indoor/outdoor fiber optic cable 有权
    干心室内/室外光缆

    公开(公告)号:US06681071B2

    公开(公告)日:2004-01-20

    申请号:US10146830

    申请日:2002-05-15

    IPC分类号: G02B644

    CPC分类号: G02B6/4413 G02B6/4494

    摘要: An indoor/outdoor dry core fiber optic cable or sub-unit that incorporates a plurality of optical fibers surrounded by a buffer material wound helically or in reverse-oscillated lay about a water blocking central strength member at a first tension and a first lay length and a water blocking strength member layer wound helically or in reverse-oscillated lay about the optical fibers at a second tension and a second lay length such that the combination of the buffer material, first tension, first lay length, second tension and second lay length result in an indoor/outdoor dry core optical cable capable of meeting ICEA-696 standards.

    摘要翻译: 一种室内/室外干芯光纤电缆或子单元,其包含由缓冲材料围绕的多个光纤,所述缓冲材料由螺旋形或反向振荡地缠绕在第一张力和第一敷设长度的水阻挡中心强度构件上, 在第二张力和第二敷设长度上螺旋地或反向摆动地缠绕在光纤上的防水强度构件层,使得缓冲材料的组合,第一张力,第一布置长度,第二张力和第二布置长度结果 在符合ICEA-696标准的室内/室外干芯光缆中。

    Coated fiber strands having one or more heterogeneous regions and methods of making the same
    3.
    发明授权
    Coated fiber strands having one or more heterogeneous regions and methods of making the same 有权
    具有一个或多个异质区域的涂覆纤维线束及其制造方法

    公开(公告)号:US06317553B1

    公开(公告)日:2001-11-13

    申请号:US09307306

    申请日:1999-05-07

    IPC分类号: G02B602

    摘要: A coated fiber strand includes one or more coating layers located directly or indirectly on the strand and at least one heterogeneous region present in or on one or more of the coating layer(s). The heterogeneous region(s) preferably comprises a material useful for coding of the fiber. One particularly preferred embodiment relates to an optical fiber having a primary coating layer and a secondary coating layer where the heterogeneous region(s) defines one or more colored stripes in or on the secondary coating layer. A method for forming a coated fiber, such as an optical fiber, includes introducing at least one coating layer onto a fiber strand such that one or more coating layers directly or indirectly cover at least a portion of the surface of the strand. The method further includes introducing at least one heterogeneous region into or onto a coating layer(s). The fiber can then be treated, e.g., cured so as to provide a desired product. By this method, a desired functionality, e.g., coding, can be introduced onto a fiber without adversely effecting subsequent processing steps, e.g., curing of the coating layer(s).

    摘要翻译: 涂覆的纤维股线包括直接或间接地位于股线上的一个或多个涂层,以及存在于一个或多个涂层中或之上的至少一个非均匀区域。 多相区域优选地包含可用于编码纤维的材料。 一个特别优选的实施方案涉及具有初级涂层和次级涂层的光纤,其中非均匀区域在二次涂层中或其上限定一个或多个着色条纹。 用于形成诸如光纤的涂覆纤维的方法包括将至少一个涂层引入到纤维束上,使得一个或多个涂层直接或间接覆盖该链的表面的至少一部分。 该方法还包括将至少一个非均匀区域引入到涂层中或涂覆层上。 然后可以处理纤维,例如固化,以便提供所需的产品。 通过该方法,可以将期望的功能性(例如编码)引入到纤维上,而不会不利地影响随后的加工步骤,例如固化涂层。

    Methods for making coated fiber strands having one or more heterogeneous regions
    4.
    发明授权
    Methods for making coated fiber strands having one or more heterogeneous regions 有权
    制备具有一个或多个异质区域的涂覆纤维束的方法

    公开(公告)号:US06649215B2

    公开(公告)日:2003-11-18

    申请号:US09952805

    申请日:2001-09-12

    IPC分类号: B05D506

    摘要: A coated fiber strand including at least one heterogeneous region present in one or more coating layers. The heterogeneous region(s) preferably comprises a material useful for coding of the fiber. The optical fiber can include a primary coating layer and a secondary coating layer where the heterogeneous region(s) defines one or more colored stripes in or on the secondary coating layer. A method for forming a coated fiber, such as an optical fiber, includes introducing at least one coating layer onto a fiber strand such that one or more coating layers cover a portion of the surface of the strand. At least one heterogeneous region is introduced into or onto one or more coating layers, and the strand is cured to provide a desired product. A desired functionality, e.g., coding, can thus be introduced onto a fiber without adversely effecting subsequent processing steps, e.g., curing of the coating layer(s).

    摘要翻译: 包括在一个或多个涂层中存在的至少一个异质区域的涂覆的纤维束。 多相区域优选地包含可用于编码纤维的材料。 光纤可以包括主涂层和二次涂层,其中非均匀区域在二次涂层中或其上限定一个或多个着色条纹。 用于形成诸如光纤的涂覆纤维的方法包括将至少一个涂层引入到纤维束上,使得一个或多个涂层覆盖该股线表面的一部分。 将至少一个非均匀区域引入到一个或多个涂层中或上一个或多个涂层上,并且将该链固化以提供所需的产物。 因此,可以将期望的功能,例如编码引入到纤维上,而不会不利地影响随后的加工步骤,例如固化涂层。

    Coated optical fiber with improved strippability
    5.
    发明授权
    Coated optical fiber with improved strippability 失效
    涂层光纤具有改善的剥离性

    公开(公告)号:US06215934B1

    公开(公告)日:2001-04-10

    申请号:US09165441

    申请日:1998-10-01

    IPC分类号: G02B602

    CPC分类号: C03C25/32 C03C25/106

    摘要: An optical fiber [10] having protective coating materials [14, 15], which surround an elongated strand of glass [12], is designed for improved strippability. Preferably, the optical fiber includes two layers (primary and secondary) of radiation-cured polymeric materials surrounding the glass fiber. The primary layer has an equilibrium (in-situ) modulus that resides within the range 120 to 500 psi. Additionally, the primary coating has a pull-out force (adhesion) that is less than 1.2 pounds per centimeter of length (lb/cm), and preferably resides within the range 0.5 to 1.0 lb/cm. It has been found that by increasing the equilibrium modulus, delamination resistance is increased. This has allowed designers to decrease pull-out force while maintaining a suitable delamination resistance. As a result, coating materials can now be stripped away from a glass fiber with little or no residue. This is particularly important in situations where a group of such fibers are bound together in an array [20] by a matrix bonding material [21].

    摘要翻译: 具有保护涂层材料[14,15]的光纤[10],其围绕细长的玻璃束[12]被设计用于改善剥离性。 优选地,光纤包括围绕玻璃纤维的辐射固化的聚合材料的两层(初级和次级)。 主层具有驻留在120至500psi范围内的平衡(原位)模量。 此外,初级涂层具有小于1.2磅/厘米长(lb / cm)的拉出力(粘合),并且优选在0.5至1.0lb / cm的范围内。 已经发现,通过增加平衡模量,增加了耐分层性。 这使得设计人员能够在保持合适的抗分层性的同时降低拉出力。 因此,涂层材料现在可以剥离玻璃纤维,很少或没有残留物。 这在一组这样的纤维通过基体结合材料[21]以阵列[20]结合在一起的情况下尤其重要。