公开(公告)号：US06519925B2

公开(公告)日：2003-02-18

申请号：US09983262

申请日：2001-10-23

申请人： Sung Joong Kim ,  Gi Woong Kim ,  Seung Oh Lee

发明人： Sung Joong Kim ,  Gi Woong Kim ,  Seung Oh Lee

IPC分类号： D02G348

CPC分类号： B60C9/0042 ,  D02G3/02 ,  D02G3/48 ,  Y10T428/2913 ,  Y10T428/2933 ,  Y10T428/2969

摘要： Disclosed are polyester multi-filamentary yarn useful as a reinforcement for tires and a dipped cord formed therefrom. The polyester multi-filamentary yarn comprises at least 90 mol % of polyethylene terephthalate and has an intrinsic viscosity of 0.70-1.2 and a tenacity of 5.5-8.5 g/d with an intermediate elongation difference (E1−E0) between intermediate elongations E0 and E1 amounting to 6% or greater. The polyester dipped cord is produced by subjecting at least two strands of polyester multi-filamentary yarn to first twisting and second twisting, the polyester multi-filamentary yarn comprising 90 mol % of polyethylene terephthalate; forming the strands into a fabric; and treating the fabric with blocked isocyanate and resorcinol formaldehyde latex (RFL), wherein the cord satisfies the following characteristics: a) a tenacity of 5.0 g/d or greater, b) a dimensional stability index (E4.5+SR) of less than 7.0%, c) a breaking elongation of 9% or greater, and d) an intermediate elongation difference (E1−E0) of 3% or less. Showing a harmony of high elastic modulus and low shrinkage, the filamentary yarn and dipped cords are superior in dimensional stability and fatigue resistance, so they can be used as reinforcements for rubber composites such as tires.

摘要翻译： 公开了用作轮胎的增强材料的聚酯多丝纱线和由其形成的浸渍帘线。 聚酯多丝线包含至少90mol％的聚对苯二甲酸乙二醇酯，其特性粘度为0.70-1.2，强度为5.5-8.5g / d，中间伸长率E0和E1之间具有中间延伸差（E1-E0） 达6％以上。 聚酯浸渍帘线通过使至少两股聚酯多丝纱线经受第一次捻合和第二次捻合而制得，该聚酯多丝纱包含90mol％的聚对苯二甲酸乙二醇酯; 将纱线形成织物; 并用封闭异氰酸酯和间苯二酚甲醛胶乳（RFL）处理织物，其中所述帘线满足以下特征：a）5.0g / d或更大的韧度，b）尺寸稳定性指数（E4.5 + SR）较小 超过7.0％，c）断裂伸长率为9％以上，d）中间伸长率差（E1-E0）为3％以下。 显示高弹性模量和低收缩率的和谐，丝线和浸渍帘线在尺寸稳定性和耐疲劳性方面优异，因此可用作轮胎等橡胶复合材料的增强材料。

公开(公告)号：US06329053B2

公开(公告)日：2001-12-11

申请号：US09362377

申请日：1999-07-28

申请人： Sung Joong Kim ,  Gi Woong Kim ,  Seung Oh Lee

发明人： Sung Joong Kim ,  Gi Woong Kim ,  Seung Oh Lee

IPC分类号： D01F600

CPC分类号： B60C9/0042 ,  D02G3/02 ,  D02G3/48 ,  Y10T428/2913 ,  Y10T428/2933 ,  Y10T428/2969

摘要： Disclosed are polyester multi-filamentary yarn useful as a reinforcement for tires and a dipped cord formed therefrom. The polyester multi-filamentary yarn comprises at least 90 mol % of polyethylene terephthalate and has an intrinsic viscosity of 0.70˜1.2 and a tenacity of 5.5˜8.5 g/d with an intermediate elongation difference (E1−E0) between intermediate elongations E0 and E1 amounting to 6% or greater. The polyester dipped cord is produced by subjecting at least two strands of polyester multi-filamentary yarn to first twisting and second twisting, the polyester multi-filamentary yarn comprising 90 mol % of polyethylene terephthalate; forming the strands into a fabric; and treating the fabric with blocked isocyanate and resorcinol formaldehyde latex (RFL), wherein the cord satisfies the following characteristics: a) a tenacity of 5.0 g/d or greater, b) a dimensional stability index (E4.5+SR) of less than 7.0%, c) a breaking elongation of 9% or greater, and d) an intermediate elongation difference (E1−E0) of 3% or less. Showing a harmony of high elastic modulus and low shrinkage, the filamentary yarn and dipped cords are superior in dimensional stability and fatigue resistance, so they can be used as reinforcements for rubber composites such as tires.

摘要翻译： 公开了用作轮胎的增强材料的聚酯多丝纱线和由其形成的浸渍帘线。 聚酯多丝线包含至少90摩尔％的聚对苯二甲酸乙二醇酯，其特性粘度为0.70〜1.2，强度为5.5〜8.5g / d，中间伸长率E0与E1之间具有中间伸长差（E1-E0） 达6％以上。 聚酯浸渍帘线通过使至少两股聚酯多丝纱线经受第一次捻合和第二次捻合而制得，该聚酯多丝纱包含90mol％的聚对苯二甲酸乙二醇酯; 将纱线形成织物; 并用封闭异氰酸酯和间苯二酚甲醛胶乳（RFL）处理织物，其中所述帘线满足以下特征：a）5.0g / d或更大的韧度，b）尺寸稳定性指数（E4.5 + SR）较小 超过7.0％，c）断裂伸长率为9％以上，d）中间伸长率差（E1-E0）为3％以下。 显示高弹性模量和低收缩率的和谐，丝线和浸渍帘线在尺寸稳定性和耐疲劳性方面优异，因此可用作轮胎等橡胶复合材料的增强材料。

公开(公告)号：US06764623B2

公开(公告)日：2004-07-20

申请号：US09983261

申请日：2001-10-23

申请人： Sung Joong Kim ,  Gi Woong Kim ,  Seung Oh Lee

发明人： Sung Joong Kim ,  Gi Woong Kim ,  Seung Oh Lee

IPC分类号： D01D110

CPC分类号： B60C9/0042 ,  D02G3/02 ,  D02G3/48 ,  Y10T428/2913 ,  Y10T428/2933 ,  Y10T428/2969

摘要： Polyester multi-filamentary yarn, useful as tire reinforcement, is produced by melting polyester resin at 290° C. or below including at least 90 mol % of polyethylene terephthalate with intrinsic viscosity of 0.7-1.2; filtering the molten resin for filtering retention time of ten minutes or below; spinning the filtered, molten resin by extrusion through a nozzle which has 250-500 holes, each ranging in diameter from 0.5 mm to 1.2 mm with a length/diameter ratio from 2 to 5; primarily quenching the extruded yarn at a temperature of 100-195° C. in a zone of 50 mm or more distance directly below the nozzle; secondarily quenching the yarn with air at its glass transition temperature (Tg) or below; taking off the yarn at spinning stress of 0.3 g/d or greater; drawing taken-off yarn at total draw ratio of 1.3 or greater; and thermally treating the yarn at temperature 150-230° C.

摘要翻译： 可用作轮胎加固的聚酯多丝纱是通过在290℃或更低的聚酯树脂下熔化而制得的，包括至少90摩尔％的特性粘度为0.7-1.2的聚对苯二甲酸乙二醇酯; 过滤熔融树脂，过滤保留时间为十分钟以下; 通过具有250-500个孔的喷嘴通过挤出纺丝过滤的熔融树脂，每个孔的直径为0.5mm至1.2mm，长度/直径比为2至5; 主要在100-195℃的温度下在直接在喷嘴下方的50mm或更多的距离的区域中淬火挤出的纱线; 二次以玻璃化转变温度（Tg）以下的空气淬火纱线; 在纺丝应力为0.3g / d以上时脱纱; 拉丝纱线总拉伸比为1.3以上; 并在150-230℃温度下对纱线进行热处理