公开(公告)号：US10358525B2

公开(公告)日：2019-07-23

申请号：US15744867

申请日：2016-06-12

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Hongwei Fan ,  Fangming Tang ,  Xiaoyu Wang ,  Wengang Li ,  Lili Wang ,  Shanshui Wang ,  Qianhan Liu ,  Zangzang Niu

IPC: C08G63/02 ,  C08G63/183 ,  C08G63/83 ,  C08G63/90 ,  C08G63/86 ,  C25B3/12 ,  D01F6/62 ,  C08G63/78

Abstract: A polyester obtained by the esterification of terephthalic acid and ethylene glycol and the polycondensation catalysed by a mixture of magnesium ethylene glycol and antimony ethylene glycol followed by granulation. In the polyester sections, the carboxyl end group is less than 15 mol/t, the mass percentage of oligomer is lower than 0.5%, and weight percentage of diethylene glycol is lower than 0.5%.

公开(公告)号：US11174346B2

公开(公告)日：2021-11-16

申请号：US15744873

申请日：2016-10-25

Applicant: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.

Inventor： Lili Wang ,  Lixin Yin ,  Qianhan Liu ,  Feng Li

IPC: C08G63/692 ,  C08G63/83 ,  D01F1/07 ,  D01F6/92 ,  C08G63/86 ,  D01F6/84 ,  C25B3/13 ,  D01D5/08

Abstract: A flame-retardant polyester fiber obtained by spinning flame-retardant polyester and irradiating with ultraviolet light and having a limiting oxygen index value of greater than 30. Flame retardant 2-carboxyethylphenylphosphinic acid to improve the flame retardant properties of polyester, the use of polyester containing unsaturated double bond in UV irradiation, the double bond opens to form a crosslinking point, the formation of a certain amount of the network structure improves the heat-resistant temperature of the poly-fiber and improves the anti-dripping performance of the polyester fiber.