Polypropylene monofilament and tape fibers exhibiting certain creep-strain characteristics and corresponding crystalline configurations

    公开(公告)号:US06878443B2

    公开(公告)日:2005-04-12

    申请号:US10899510

    申请日:2004-07-26

    摘要: Unique thermoplastic (polypropylene, specifically) monofilament and/or tape 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 other previously produced thermoplastic fibers (particularly those produced under commercial conditions), 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, talc, 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.

    High strength polyethylene fibers and their applications
    94.
    发明授权
    High strength polyethylene fibers and their applications 有权
    高强度聚乙烯纤维及其应用

    公开(公告)号:US06770362B2

    公开(公告)日:2004-08-03

    申请号:US10404758

    申请日:2003-04-02

    申请人: Takayoshi Okano

    发明人: Takayoshi Okano

    IPC分类号: D01F600

    摘要: High strength polyethylene fibers and their applications, for example, chopped fibers, ropes, nets, ballistic materials or items, protective gloves, fiber reinforced concrete products, helmets, and other products obtained therefrom, in which the fiber is characterized in that: it contains a high molecular weight polyethylene consisting essentially of a repeating unit of ethylene; it has an intrinsic viscosity number of 5 or larger and an average strength of 22 cN/dtex or higher; and the measurement of the fiber by differential scanning calorimetry (DSC) exhibits a temperature-increasing DCS curve having at least one endothermic peak over a temperature region of 140° C. to 148° C. (on the low temperature side) and at least one endothermic peak over a temperature region of 148° C. or higher (on the high temperature side) or the number of frictions until the fiber is broken in an abrasion test according to method B for measuring abrasion resistance in the Testing Methods for Spun Yarn (JIS L 1095) is 100,000 or larger.

    摘要翻译: 高强度聚乙烯纤维及其应用,例如短切纤维,绳索,网,防弹材料或物品,防护手套,纤维增强混凝土制品,头盔以及从其获得的其他产品,其中纤维的特征在于:它包含 基本上由乙烯的重复单元组成的高分子量聚乙烯; 其特性粘数为5以上,平均强度为22cN / dtex以上; 并且通过差示扫描量热法(DSC)测量纤维表现出在140℃至148℃的温度区域(在低温侧)具有至少一个吸热峰的升温DCS曲线,并且至少 在“纺纱试验方法”中,在148℃以上的温度区域(高温侧)的一个吸热峰或摩擦次数,直到纤维在根据方法B的磨损试验中断裂的数量 (JIS L 1095)为100,000以上。

    Hydrophilic additives
    95.
    发明申请
    Hydrophilic additives 失效
    亲水性添加剂

    公开(公告)号:US20040138360A1

    公开(公告)日:2004-07-15

    申请号:US10477904

    申请日:2003-11-14

    IPC分类号: C08L001/00

    摘要: The invention relates to hydrophilic additives for synthetic fibres containing polyolefin; said additives are represented by general formula (I): A-B-C-B-A wherein A is a radical RnullCOO, wherein R represents a saturated, cross-linked or non-cross-linked alkyl radical having 7-21 C atoms, B represents a group (CnH2nO)k, wherein n is a whole number from 2-4 and k can have a value of 1-15, C represents a linear or cross-linked alkylene radical having at least 2 and at the most 6 C atoms and the radical C can be, optionally, interrupted by oxygen atoms.

    摘要翻译: 本发明涉及含有聚烯烃的合成纤维的亲水性添加剂; 所述添加剂由通式(I)表示:ABCBA,其中A是基团R-COO,其中R表示具有7-21个C原子的饱和,交联或非交联烷基,B表示基团 C n H 2n O)k,其中n是2-4的整数,k可以具有1-15的值,C表示具有至少2个且至多6个C原子的直链或交联的亚烷基,并且基团C 可以任选被氧原子中断。

    Thermoplastic monofilament fibers exhibiting low-shrink, high tenacity, and extremely high modulus levels
    97.
    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。

    Polypropylene monofilament and tape fibers exhibiting certain creep-strain characteristics and corresponding crystalline configurations

    公开(公告)号:US20040096654A1

    公开(公告)日:2004-05-20

    申请号:US10443003

    申请日:2003-09-15

    IPC分类号: D02G003/00

    摘要: Unique thermoplastic (polypropylene, specifically) monofilament and/or tape 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 other previously produced thermoplastic fibers (particularly those produced under commercial conditions), 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 nullrigidifyingnull nucleator compounds provide nucleation sites for thermoplastic crystal growth. The preferred nullrigidifyingnull compounds include dibenzylidene sorbitol based compounds, as well as less preferred compounds, such as null2.2.1nullheptane-bicyclodicarboxylic acid, otherwise known as HPN-68, sodium benzoate, talc, certain sodium and lithium phosphate salts nullsuch as sodium 2,2null-methylene-bis-(4,6-di-tert-butylphenyl)phosphate, otherwise known as NA-11null. Specific methods of manufacture of such inventive thermoplastic fibers, as well as fabric articles made therefrom, are also encompassed within this invention.

    Oven for drawing fibres at elevated temperature
    100.
    发明申请
    Oven for drawing fibres at elevated temperature 有权
    烤箱用于在高温下拉伸纤维

    公开(公告)号:US20040040176A1

    公开(公告)日:2004-03-04

    申请号:US10398565

    申请日:2003-04-08

    IPC分类号: A21B001/04 F24C015/34

    CPC分类号: D01F6/04 D02J1/222 D02J13/001

    摘要: The invention relates to an oven for drawing fibres at elevated temperature, which oven is on two sides opposite one another provided with guide rolls dictating a zigzag up-and-down drawing trajectory for the fibre in the oven. In the oven according to the invention the drawing trajectory is at least 20 metres long and the rolls are driven. The invention also relates to a process for drawing fibres using the oven according to the invention, in particular to a process for producing highly oriented polyethylene fibres.

    摘要翻译: 本发明涉及一种用于在升高的温度下拉伸纤维的烘箱,该烘箱位于彼此相对的两侧,设有导辊,该导辊指定烤箱中纤维的锯齿状上下拉伸轨迹。 在根据本发明的烘箱中,绘图轨迹长至少20米,并且辊被驱动。 本发明还涉及使用根据本发明的烘箱拉制纤维的方法,特别涉及一种生产高取向聚乙烯纤维的方法。