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1.发明授权
公开(公告)号：US4195052A
公开(公告)日：1980-03-25
申请号：US735849
申请日：1976-10-26
IPC分类号： B29D30/38 , B29K21/00 , B29K105/08 , B29L30/00 , B60C9/00 , C08J5/04 , D01D5/08 , D01D5/12 , D01F6/62 , D01F6/92
CPC分类号： D01F6/62
摘要： An improved process is provided for the formation of a high performance polyester (at least 85 mol percent polyethylene terephthalate) multifilament yarn. The product possesses a high strength (at least 7.5 grams per denier) and an unusually stable internal structure which renders it particularly suited for use in industrial applications at elevated temperatures. The filaments are melt spun and uniformly quenched under relatively high stress conditions (as described) to yield an as-spun filamentary material of relatively high birefringence (+9.times.10.sup.-3 to +70.times.10.sup.-3) which is passed in-line from the quench zone to a first draw zone where it is drawn at a draw ratio of 1.01:1 to 3.0:1, and subsequently is drawn (as described) to achieve at least 85 percent of the maximum draw ratio of the as-spun filamentary material. The resulting filamentary material exhibits unusually low shrinkage and hysteresis characteristics (i.e. work loss characteristics) as well as the high strength chatracteristics. Accordingly, when utilized in the formation of a tire cord and embedded in a rubber matrix a highly stable tire may be formed which exhibits a significantly lesser heat generation upon flexing.
摘要翻译： 提供了一种用于形成高性能聚酯（至少85mol％聚对苯二甲酸乙二醇酯）复丝纱线的改进方法。 该产品具有高强度（至少7.5克/旦尼尔）和非常稳定的内部结构，使其特别适用于在高温下工业应用。 在相当高的应力条件下（如所述）将长丝熔融纺丝并均匀淬火，得到相对高的双折射（+ 9×10 -3至+ 70×10 -3）的短丝状材料，其从骤冷区 到拉伸比为1.01:1至3.0:1的第一拉伸区域，随后拉伸（如所述），以达到初丝丝状材料的最大拉伸比的至少85％。 所得的丝状材料表现出非常低的收缩和滞后特性（即工作损失特性）以及高强度特性。 因此，当用于形成轮胎帘线并且嵌入在橡胶基质中时，可以形成高度稳定的轮胎，其在弯曲时显示出显着较小的发热。
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2.发明授权Polyester yarn of high strength possessing an unusually stable internal structure 失效高强度聚酯纱具有异常稳定的内部结构
公开(公告)号：US4101525A
公开(公告)日：1978-07-18
申请号：US735850
申请日：1976-10-26
CPC分类号： D01F6/62
摘要： An improved high performance polyester (at least 85 mol percent polyethylene terephthalate) multifilament yarn possessing a novel internal structure is provided. The multifilament yarn of the present invention possesses a high strength (at least 7.5 grams per denier) and an unusually stable internal structure which renders it particularly suited for use in industrial applications at elevated temperatures. As described in detail hereafter the subject multifilamentary material exhibits unusually low shrinkage and hysteresis characteristics (i.e. work loss characteristics) coupled with the high strength characteristics normally associated with polyester industrial yarns. Accordingly, when utilized in the formation of a tire cord and embedded in a rubber matrix, a highly stable tire may be formed which exhibits a significantly lesser heat generation uon flexing.
摘要翻译： 提供了具有新型内部结构的改进的高性能聚酯（至少85mol％聚对苯二甲酸乙二醇酯）复丝纱线。 本发明的复丝纱具有高强度（至少7.5克/旦尼尔）和非常稳定的内部结构，使其特别适用于在高温下的工业应用。 如下文详细描述的，本发明的复丝材料显示出非常低的收缩和滞后特性（即工作损失特性）以及通常与聚酯工业纱线相关联的高强度特性。 因此，当用于形成轮胎帘线并且嵌入在橡胶基质中时，可以形成高度稳定的轮胎，其显示出显着较少的发热尿布弯曲。
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公开(公告)号：US4195161A
公开(公告)日：1980-03-25
申请号：US888961
申请日：1978-03-22
CPC分类号： D01F6/62
摘要： An improved polyester filament (i.e., a principally polyethylene terephthalate filament) suitable for use in commercial applications is provided having a unique internal structure. The filament possesses an interconnected highly oriented crystalline microstructure coextensive with its length coexisting with an interdispersed substantially disoriented non-crystalline phase. The filament microstructure imparts inter alia a propensity for the filament to undergo a low degree of shrinkage under a high degree of force at an elevated temperature as evidenced by a modulus ratio (as defined) of at least 0.1. The filament exhibits a relatively high initial modulus, coupled with a relatively high crystalline orientation function, and a relatively low amorphous orientation function.
摘要翻译： 提供了适用于商业应用的改进的聚酯长丝（即，主要是聚对苯二甲酸乙二醇酯长丝），其具有独特的内部结构。 长丝具有相互高度取向的结晶微结构，其共同延伸，其长度与分散间的基本上不定向的非结晶相共存。 长丝显微组织尤其表现为在高温下在高度的力下经历低度收缩的倾向，如通过至少0.1的模量比（定义）所证明的。 长丝显示相对高的初始模量，加上相对较高的结晶定向功能和相对较低的无定形取向功能。
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4.发明授权Process for enhancing the uniformity of dye uptake of false twist texturized polyethylene terephthalate fibrous materials 失效提高假捻组织聚对苯二甲酸乙二醇酯纤维材料染料摄取均匀性的方法
公开(公告)号：US4296058A
公开(公告)日：1981-10-20
申请号：US953662
申请日：1978-10-23
申请人： John C. Chen , Herbert L. Davis
发明人： John C. Chen , Herbert L. Davis
CPC分类号： D01F6/62
摘要： The present invention provides an improvement in a process for providing a dyed, false twist texturized, fibrous material comprising at least 85 mole percent polyethylene terephthalate which is subject to variations in dye uptake induced by the false twist texturizing treatment conducted on said fibrous material prior to or concurrently with a dyeing process by enhancing the uniformity of dye uptake of the fibrous material. The enhancement in the uniformity of dye uptake is achieved by subjecting the fibrous material, which has been previously oriented but prior to false twist texturizing, to an annealing step at a specifically defined temperature for a specifically defined length of time while controlling the length of the fibrous material in a specifically defined manner.
摘要翻译： 本发明提供了提供染色的假捻组织化的纤维材料的方法的改进，所述纤维材料包含至少85摩尔％的聚对苯二甲酸乙二醇酯，所述聚对苯二甲酸乙二醇酯经受在所述纤维材料之前进行的假捻组织化处理引起的染料吸收变化， 或通过增强纤维材料的染料吸收的均匀性与染色过程同时进行。 染料吸收均匀性的增强是通过将已经预先取向但在假捻组织化之前的纤维材料在特定限定的温度下经受特定限定的时间长度的退火步骤来实现的，同时控制 纤维材料。
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5.发明授权
公开(公告)号：US3946100A
公开(公告)日：1976-03-23
申请号：US400863
申请日：1973-09-26
摘要： An improved process is provided for the production of polymeric filamentary material or film. Molten melt-spinnable polymeric material capable of undergoing crystallization (e.g., a polyester) is extruded through a shaped orifice to form a filamentary material or film under high stress conditions, quenched to below its glass transition temperature to form a solid filamentary material or film, and sequentially passed for a brief residence time through a thermal conditioning zone at a temperature between its glass transition temperature and its melting temperature wherein the internal structure thereof is modified and substantial crystallization of the previously solidified filamentary material or film takes place. The filamentary material or film is withdrawn from the conditioning zone at a rate of 1000 to 6000 meters per minute while under a relatively high stress of about 0.1 to 1.0 gram per denier. The process is conducted while exerting a constant tension upon the filamentary material or film in the absence of stress isolation. The melt extrusion process yields a product wherein the tensile strength and modulus are improved and the shrinkage characteristics are diminished.
摘要翻译： 提供了用于生产聚合物长丝材料或膜的改进方法。 能够经历结晶的熔融可熔融纺丝聚合材料（例如聚酯）通过成形孔挤出，以在高应力条件下形成丝状材料或薄膜，淬火至低于其玻璃化转变温度以形成固体丝状材料或薄膜， 并通过热调节区在其玻璃化转变温度和其熔融温度之间的温度下顺次通过，其中其内部结构被修饰，并且发生先前固化的丝状材料或膜的实质结晶。 长丝材料或薄膜以1000至6000米/分钟的速率从调理区域中取出，而在约0.1至1.0克/旦尼尔的较高应力下。 在没有应力隔离的情况下，在丝状材料或膜上施加恒定张力的同时进行该过程。 熔融挤出工艺产生了拉伸强度和模量提高并且收缩特性减小的产品。
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公开(公告)号：US4083829A
公开(公告)日：1978-04-11
申请号：US789374
申请日：1977-04-20
摘要： A wholly aromatic polyester is provided which has been found to be highly amenable to melt extrusion to yield high performance fibers. Such fibers following thermal treatment exhibit high tenacity and tensile modulus properties which are well retained at elevated temperatures while exhibiting a low degree of shrinkage. Unlike wholly aromatic polyesters normally encountered in the prior art, the polymer of the present invention is not intractable and may be melt extruded with ease at temperatures below approximately 300.degree. C., and preferably below approximately 280.degree. C. The aromatic polyester of the present invention consists essentially of recurring units (a) p-oxybenzoyl moiety, (b) 2,6-dicarboxynaphthalene moiety, (c) symmetrical dioxy aryl moiety (as defined), and (d) isophthaloyl moiety and/or metal-dioxy phenylene moiety, and is free of units which possess ring substitution. The wholly aromatic polyester of the present invention forms an atypical thermotropic melt phase which is exhibited in the absence of ring substitution at a relatively low temperature which facilitates fiber formation with ease. The wholly aromatic polyester of the present invention following melt spinning and thermal treatment commonly can exhibit an average single filament tenacity of at least 15 grams per denier, and an average single filament tensile modulus of at least 300 grams per denier.
摘要翻译： 提供了一种全芳族聚酯，已被发现是高度易于熔融挤出以产生高性能纤维。 热处理后的这种纤维表现出高强度和拉伸模量性能，它们在升高的温度下良好地保持，同时表现出低的收缩率。 与现有技术中通常遇到的全芳族聚酯不同，本发明的聚合物不难处理，并且可以在低于约300℃，优选低于约280℃的温度下容易地熔融挤出。本发明的芳族聚酯 本发明基本上由重复单元（a）对羟基苯甲酰部分，（b）2,6-二羧基萘部分，（c）对称的二氧基芳基部分（如所定义））和（d）间苯二酰部分和/或金属二氧基亚苯基部分 并且没有具有环取代的单元。 本发明的全芳族聚酯形成非典型的热致熔融相，其在相对较低的温度下在不存在环取代的情况下表现出来，这便于轻松形成纤维。 熔融纺丝和热处理后本发明的全芳族聚酯通常可显示至少15克/旦尼尔的平均单丝强度，平均单丝拉伸模量至少为300克/旦尼尔。
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