公开(公告)号：US5658665A

公开(公告)日：1997-08-19

申请号：US513025

申请日：1995-08-09

Applicant: Kyeoghyeon Kim ,  Hagmug Kim ,  Seongjung Kim ,  Sangmin Lee ,  Hongjo Kim

Inventor： Kyeoghyeon Kim ,  Hagmug Kim ,  Seongjung Kim ,  Sangmin Lee ,  Hongjo Kim

IPC: B60C9/00 ,  D01F6/62 ,  D02G3/48 ,  D02J1/00 ,  D02J1/22 ,  B32B27/34 ,  D02G3/00

CPC classification number: B60C9/0042 ,  D01F6/62 ,  Y10T428/2904 ,  Y10T428/2913 ,  Y10T428/2969

Abstract: A polyester tire cord is produced from a polyester multi-filamentary yarn having a novel internal microstructure containing crystalline, amorphous and mesomorphous portions which are changed to a definite structure of crystalline and amorphous portions during formation of the tire cord. A polyester resin containing at least 90 mol % polyethylene terephthalate is melt-spun and solidified by quenching to produce an undrawn yarn with a birefringence of 0.03 to 0.08, which is then drawn at a total draw ratio of 1.4:1 to 2.2:1 and thermally treated and relaxed. The resulting filamentary yarn is dipped in a rubber solution to produce a tire cord which exhibits excellent dimensional stability and fatigue resistance when it has been incorporated into a rubber matrix of a tire.

Abstract translation: 聚酯轮胎帘线由具有新颖的内部微结构的聚酯多丝纱生产，所述新型内部微结构包含结晶，非晶和中性部分，在轮胎帘线形成期间将其变为结晶和无定形部分的确定结构。 含有至少90mol％聚对苯二甲酸乙二醇酯的聚酯树脂通过淬火熔融纺丝和固化，以产生双折射率为0.03至0.08的未拉伸丝，然后以1.4:1至2.2:1的总拉伸比拉伸， 热处理和放松。 将所得到的长丝纱浸渍在橡胶溶液中，制成轮胎帘线，当轮胎帘线已经被结合到轮胎的橡胶基质中时，其显示出优异的尺寸稳定性和耐疲劳性。

公开(公告)号：US5472781A

公开(公告)日：1995-12-05

申请号：US340452

申请日：1994-11-14

Applicant: Kyeoghyeon Kim ,  Hagmug Kim ,  Seongjung Kim ,  Sangmin Lee ,  Hongjo Kim

Inventor： Kyeoghyeon Kim ,  Hagmug Kim ,  Seongjung Kim ,  Sangmin Lee ,  Hongjo Kim

IPC: B60C9/00 ,  D01F6/62 ,  D02G3/48 ,  D02J1/00 ,  D02J1/22 ,  D02G3/00

CPC classification number: B60C9/0042 ,  D01F6/62 ,  Y10T428/2904 ,  Y10T428/2913 ,  Y10T428/2969

Abstract: A polyester multi-filamentary yarn having a novel internal microstructure, polyester tire cord produced from the yarn and a process for production thereof are provided. The polyester yarn has a novel three-phase microstructure consisting of crystalline, amorphous and mesomorphous portions which are changed to a structure having crystalline and amorphous portions during formation of a tire cord. The polyester resin contains at least 90 mol. % polyethylene teraphthalate. The resin is melt-spun and solidified by quenching to produce an undrawn yarn having a birefringence of 0.03 to 0.08, which is then drawn at a total draw ratio of 1.4:1 to 2.2:1 and thermally treated and relaxed. The resulting filamentary yarn is dipped in a rubber solution to produce a tire cord which exhibits excellent dimensional stability and fatigue resistance when it is incorporated into the rubber matrix of a tire.

Abstract translation: 提供具有新颖的内部微观结构的聚酯多丝纱，由该纱线生产的聚酯轮胎帘线及其生产方法。 聚酯纱线具有由晶体，非晶和中性部分组成的新颖的三相微结构，其在轮胎帘线形成期间被改变成具有结晶和无定形部分的结构。 聚酯树脂含有至少90mol。 ％聚对苯二甲酸乙二醇酯。 通过淬火将树脂熔融纺丝固化，得到双折射率为0.03〜0.08的未拉伸丝，然后以1.4:1〜2.2:1的总拉伸比进行拉伸，进行热处理和松弛。 将所得到的长丝纱浸渍在橡胶溶液中，制成轮胎帘线，当轮胎帘线结合到轮胎的橡胶基质中时，其显示出优异的尺寸稳定性和耐疲劳性。

公开(公告)号：USRE36698E

公开(公告)日：2000-05-16

申请号：US714359

申请日：1996-09-16

Applicant: Kyeoghyeon Kim ,  Hagmug Kim ,  Seongjung Kim ,  Sangmin Lee ,  Hongjo Kim

Inventor： Kyeoghyeon Kim ,  Hagmug Kim ,  Seongjung Kim ,  Sangmin Lee ,  Hongjo Kim

IPC: B60C9/00 ,  D01F6/62 ,  D02G3/48 ,  D02J1/00 ,  D02J1/22 ,  D02G3/00

CPC classification number: B60C9/0042 ,  D01F6/62 ,  Y10T428/2904 ,  Y10T428/2913 ,  Y10T428/2969

Abstract: A polyester multi-filamentary yarn having a novel internal microstructure, polyester tire cord produced from the yarn and a process for production thereof are provided. The polyester yarn has a novel three-phase microstructure consisting of crystalline, amorphous and mesomorphous portions which are changed to a structure having crystalline and amorphous portions during formation of a tire cord. The polyester resin contains at least 90 mol. % polyethylene terephthalate. The resin is melt-spun and solidified by quenching to produce an undrawn yarn having a birefringence of 0.03 to 0.08, which is then drawn at a total draw ratio of 1.4:1 to 2.2:1 and thermally treated and relaxed. The resulting filamentary yarn is dipped in a rubber solution to produce a tire cord which exhibits excellent dimensional stability and fatigue resistance when it is incorporated into the rubber matrix of a tire.

Abstract translation: 提供具有新颖的内部微观结构的聚酯多丝纱，由该纱线生产的聚酯轮胎帘线及其生产方法。 聚酯纱线具有由晶体，非晶和中性部分组成的新颖的三相微结构，其在轮胎帘线形成期间被改变成具有结晶和无定形部分的结构。 聚酯树脂含有至少90mol。 ％ 聚对苯二甲酸。 将树脂通过淬火进行熔融纺丝和固化，得到双折射率为0.03〜0.08的未拉伸丝，然后以1.4:1〜2.2:1的总拉伸比进行拉伸，进行热处理和松弛。 将所得到的长丝纱浸渍在橡胶溶液中，制成轮胎帘线，当轮胎帘线结合到轮胎的橡胶基质中时，其显示出优异的尺寸稳定性和耐疲劳性。