Thermoplastic monofilament fibers exhibiting low-shrink, high tenacity, and extremely high modulus levels
    6.
    发明授权
    Thermoplastic monofilament fibers exhibiting low-shrink, high tenacity, and extremely high modulus levels 有权
    显示低收缩,高韧性和极高模量水平的热塑性单丝纤维

    公开(公告)号:US06759124B2

    公开(公告)日:2004-07-06

    申请号:US10295463

    申请日:2002-11-16

    IPC分类号: D01F600

    摘要: Unique thermoplastic monofilament fibers and yarns that exhibit heretofore unattained physical properties are provided. Such fibers are basically manufactured through the extrusion of thermoplastic resins that include a certain class of nucleating agent therein, and are able to be drawn at high ratios with such nucleating agents present that the tenacity and modulus strength are much higher than any other previously produced thermoplastic fibers, particularly those that also simultaneously exhibit extremely low shrinkage rates. Thus, such fibers require the presence of certain compounds that quickly and effectively provide rigidity to the target thermoplastic (for example, polypropylene), particularly after heat-setting. Generally, these compounds include any structure that nucleates polymer crystals within the target thermoplastic after exposure to sufficient heat to melt the initial pelletized polymer and allowing such an oriented polymer to cool. The compounds must nucleate polymer crystals at a higher temperature than the target thermoplastic without the nucleating agent during cooling. In such a manner, the “rigidifying” nucleator compounds provide nucleation sites for thermoplastic crystal growth. The preferred “rigidifying” compounds include dibenzylidene sorbitol based compounds, as well as less preferred compounds, such as [2.2.1]heptane-bicyclodicarboxylic acid, otherwise known as HPN-68, sodium benzoate, certain sodium and lithium phosphate salts [such as sodium 2,2′-methylene-bis-(4,6-di-tert-butylphenyl)phosphate, otherwise known as NA-11]. Specific methods of manufacture of such inventive thermoplastic fibers, as well as fabric articles made therefrom, are also encompassed within this invention.

    摘要翻译: 提供了独特的热塑性单丝纤维和纱线,这些纤维和纱线迄今尚未实现物理性能。 这种纤维基本上通过在其中挤出含有某种类型的成核剂的热塑性树脂的挤出制成,并且能够以高比例将这些成核剂拉伸出来,其强度和模量强度远高于任何其它先前制备的热塑性塑料 纤维,特别是也同时呈现极低收缩率的纤维。 因此,这样的纤维需要存在某些化合物,其特别是在热定形之后快速且有效地为目标热塑性塑料(例如聚丙烯)提供刚性。 通常,这些化合物包括在暴露于足够的热量以熔化初始颗粒聚合物并允许这样的取向聚合物冷却之后,使目标热塑性塑料中的聚合物晶体成核的任何结构。 在冷却期间,化合物必须在比目标热塑料高的温度下成核聚合物晶体,而不需要成核剂。 以这种方式,“硬化”成核剂化合物提供热塑性晶体生长的成核位点。 优选的“硬化”化合物包括二亚苄基山梨醇基化合物,以及较不优选的化合物,例如[2.2.1]庚烷 - 双环二羧酸,另外称为HPN-68,苯甲酸钠,某些钠和磷酸锂盐[例如 2,2'-亚甲基 - 双 - (4,6-二叔丁基苯基)磷酸钠,另外称为NA-11]。 制造本发明的热塑性纤维的具体方法以及由其制成的织物制品也包括在本发明内。

    Fabric reinforced cement
    7.
    发明授权
    Fabric reinforced cement 有权
    织物增强水泥

    公开(公告)号:US07914884B2

    公开(公告)日:2011-03-29

    申请号:US11065405

    申请日:2005-02-24

    IPC分类号: B32B13/02 B32B27/00 B32B13/06

    摘要: The present disclosure relates to cementitious articles that are reinforced with a fabric made at least partially of high modulus polyolefin monofilament fibers. Preferably, the polypropylene monofilament yarns have a 3% secant modulus of elasticity of at least 100 g/denier. The high modulus polypropylene fabric has an intrinsic resistance to the alkaline conditions present in a cementitious composite, as well as a low elongation at break. The high modulus polypropylene may contain a nucleating agent to facilitate the process of obtaining desired draw ratio.

    摘要翻译: 本公开涉及用至少部分由高模量聚烯烃单丝纤维制成的织物增强的水泥制品。 优选地,聚丙烯单丝纱具有至少100g /旦的3%正割弹性模量。 高模量聚丙烯织物对水泥基复合材料中存在的碱性条件具有固有的抗性,并且具有低的断裂伸长率。 高模量聚丙烯可以含有成核剂以促进获得所需拉伸比的过程。

    Fabric reinforced cement
    10.
    发明授权
    Fabric reinforced cement 有权
    织物增强水泥

    公开(公告)号:US06960394B2

    公开(公告)日:2005-11-01

    申请号:US10786272

    申请日:2004-02-25

    IPC分类号: B32B7/00 D04H3/00 E04C2/06

    摘要: A cement panel that is reinforced with a fabric made of nucleated polypropylene fibers. The cement panel includes a core layer that is made of a lightweight cement composition. This core layer is covered with a layer of reinforcing nucleated polypropylene fabric on the top and on the bottom, each bonded to the core with a coating of cementitious material on the top and on the bottom of the core layer. On the edges of the cement panels, the fabric layers may be overlapped so as to augment the strength of these edges.

    摘要翻译: 用由有核聚丙烯纤维制成的织物增强的水泥板。 水泥板包括由轻质水泥组合物制成的芯层。 该芯层在顶部和底部覆盖有一层增强的有核聚丙烯织物,每层通过在芯层的顶部和底部上具有胶结材料的涂层粘合到芯上。 在水泥板的边缘上,织物层可以重叠,以增加这些边缘的强度。