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    Polyester of para-hydroxy benzoic acid, 1,2-bis(para-carboxy phenoxy)ethane, terephthalic acid and substituted hydroquinone capable of forming an anisotropic melt which readily undergoes melt processing
    2.
    发明授权
    Polyester of para-hydroxy benzoic acid, 1,2-bis(para-carboxy phenoxy)ethane, terephthalic acid and substituted hydroquinone capable of forming an anisotropic melt which readily undergoes melt processing 失效
    对羟基苯甲酸的聚酯，1,2-双（对羧基苯氧基）乙烷，对​​苯二甲酸和能够形成易于熔融加工的各向异性熔体的取代氢醌

    公开(公告)号：US4238599A

    公开(公告)日：1980-12-09

    申请号：US10392

    申请日：1979-02-08

    申请人： Jeffrey T. Langley ,  Robert M. Mininni

    发明人： Jeffrey T. Langley ,  Robert M. Mininni

    IPC分类号： C08G63/00 ,  C08G63/64 ,  C08G63/66 ,  C08G63/682 ,  C08G63/60

    CPC分类号： C08G63/66 ,  C08G63/6826

    摘要： A novel polyester is provided which has been found to exhibit an anisotropic melt phase at a temperature which enables it readily to undergo melt processing to form quality fibers, molded articles, etc. The polyester of the present invention is different in character than polyesters of the prior art and includes as essential ingredients moieties derived from para-hydroxy benzoic acid, 1,2-bis(para-carboxy phenoxy)ethane, terephthalic acid, and substituted hydroquinone in the proportions indicated. The polyester of the present invention generally can be more economically produced than polyesters of the latter three moieties (two of which are relatively expensive) while surprisingly yielding an anisotropic melt of relatively low viscosity at a desirable temperature for melt processing in spite of the substantial concentration of relatively stiff para-oxybenzoyl moieties which contribute to the overall nature of the resulting polyester. In a preferred embodiment the polyester is capable of undergoing melt processing at a temperature below approximately 300.degree. C., and in a particularly preferred embodiment at a temperature below approximately 290.degree. C. (e.g., with standard equipment commonly used to melt process polyethylene terephthalate).

    摘要翻译： 已经发现一种新颖的聚酯已被发现在使其容易进行熔融加工以形成优质纤维，模塑制品等的温度下呈现各向异性的熔融相。本发明的聚酯的特性与 现有技术，并且以所示比例包括作为必需成分的部分衍生自对羟基苯甲酸，1,2-双（对 - 羧基苯氧基）乙烷，对​​苯二甲酸和取代的氢醌。 本发明的聚酯通常可以比后三个部分（其中两个相对昂贵）的聚酯更经济地生产，同时令人惊讶地产生在所需温度下具有相对低的粘度的各向异性熔体，用于熔体加工，尽管有大量的浓度 相对较硬的对氧基苯甲酰部分，其有助于所得聚酯的总体性质。 在优选的实施方案中，聚酯能够在低于约300℃的温度下进行熔体加工，并且在特别优选的实施方案中在低于约290℃的温度下进行熔融加工（例如，使用通常用于熔融加工聚对苯二甲酸乙二醇酯的标准设备 ）。

    Production of a fabric containing polyethylene terephthalate fibers having a reduced tendency to pill
    6.
    发明授权
    Production of a fabric containing polyethylene terephthalate fibers having a reduced tendency to pill 失效
    生产含有降低药丸倾向的聚对苯二甲酸乙二醇酯纤维的织物

    公开(公告)号：US4666454A

    公开(公告)日：1987-05-19

    申请号：US773765

    申请日：1985-09-09

    申请人： Ronald N. DeMartino ,  Jeffrey T. Langley ,  Robert D. Johnson

    发明人： Ronald N. DeMartino ,  Jeffrey T. Langley ,  Robert D. Johnson

    IPC分类号： C08G63/672 ,  D01F6/86 ,  D06P3/54 ,  C04B41/30

    CPC分类号： D01F6/86 ,  C08G63/672 ,  D06P3/54 ,  Y10S8/922

    摘要： A fabric comprising polyethylene terephthalate fibers which exhibits a reduced tendency to pill upon encountering surface abrasion is formed on an expeditious basis. During the polymerization of the monomers required to form the polyethylene terephthalate, a quantity of polyethylene glycol (as described) is copolymerized therewith to form a polymer which exhibits a substantial intrinsic viscosity (as described). Following the melt-extrusion of the polymer to form fibers and fabric formation, the fabric is subjected to a dye bath at an elevated temperature wherein it is dyed, and the intrinsic viscosity of the polymer is reduced (as described). The presence of units derived from polyethylene glycol within the polymer chain has been found to lead to such intrinsic viscosity reduction within the dye bath. Accordingly, the resulting polyethylene terephthalate fibers present in the fabric tend to exhibit a strength which is closer to that of natural fibers such as cotton, and the tendency of the fabric to retain undesirable pills is greatly reduced.

    摘要翻译： 在快速的基础上形成包含聚对苯二甲酸乙二醇酯纤维的织物，其在遇到表面磨损时表现出降低的药丸倾向。 在形成聚对苯二甲酸乙二醇酯所需的单体的聚合期间，将一定量的聚乙二醇（如所述）与其共聚以形成显示特性粘度（如所述）的聚合物。 在聚合物熔融挤出以形成纤维和织物形成之后，将织物在升高的温度下进行染色浴，其中染色，聚合物的特性粘度降低（如所述）。 发现聚合物链内衍生自聚乙二醇的单元的存在导致在染浴中的这种特性粘度降低。 因此，存在于织物中的所得聚对苯二甲酸乙二醇酯纤维倾向于表现出更接近天然纤维如棉花的强度，并且织物保留不期望的丸剂的趋势大大降低。

    Wholly aromatic polyester capable of forming an anisotropic melt phase consisting essentially of para-oxybenzoyl moiety, bromo-substituted-para-oxybenzoyl moiety, and meta-oxybenzoyl moiety
    10.
    发明授权
    Wholly aromatic polyester capable of forming an anisotropic melt phase consisting essentially of para-oxybenzoyl moiety, bromo-substituted-para-oxybenzoyl moiety, and meta-oxybenzoyl moiety 失效
    能够形成基本上由对羟基苯甲酰部分，溴取代的对羟基苯甲酰部分和间羟基苯甲酰部分组成的各向异性熔融相的全芳族聚酯

    公开(公告)号：US4374228A

    公开(公告)日：1983-02-15

    申请号：US289587

    申请日：1981-08-03

    申请人： Jeffrey T. Langley

    发明人： Jeffrey T. Langley

    IPC分类号： C08G63/00 ,  C08G63/06 ,  C08G63/60 ,  C08G63/682 ,  D01F6/84 ,  C08G63/02

    CPC分类号： D01F6/84 ,  C08G63/6822

    摘要： A novel wholly aromatic polyester is provided which exhibits an anisotropic melt phase and which is capable of readily undergoing melt processing. The polyester of the present invention consists essentially of the recurring units (a) paraoxybenzoyl moiety, (b) bromo-substituted-para-oxybenzoyl moiety, and (c) meta-oxybenzoyl moiety. The resulting polymer may be economically produced. Additionally, it may be melt processed at an advantageous temperature which makes possible the utilization of standard equipment such as that heretofore utilized for the melt processing of polyethylene terephthalate.

    摘要翻译： 提供了一种新颖的全芳族聚酯，其呈现各向异性熔融相，并且能够容易地进行熔融加工。 本发明的聚酯基本上由重复单元（a），对羟基苯甲酰部分，（b）溴取代的对羟基苯甲酰部分和（c）间羟基苯甲酰部分组成。 得到的聚合物可以经济地生产。 此外，它可以在有利的温度下熔融加工，这使得可能利用诸如迄今为止用于聚对苯二甲酸乙二醇酯的熔融加工的标准设备。