公开(公告)号：US20220389620A1

公开(公告)日：2022-12-08

申请号：US17774937

申请日：2020-01-15

Applicant: CATHAY BIOTECH INC. ,  CIBT AMERICA INC.

Inventor： Chaoxu SUN ,  Wanzhong CHEN ,  Shuyuan CHEN ,  Zhiguo SHANG ,  Xiucai LIU

IPC: D01F6/60 ,  D01F1/10 ,  D01D5/08 ,  D01D5/088 ,  D01D5/16 ,  D01D10/02 ,  C08G69/28 ,  C08G69/32 ,  C08K5/098 ,  C08K3/16

Abstract: Disclosed in the present invention is a polyamide 5X industrial yarn. The polyamide 5X industrial yarn has a heat-resistant break strength retention rate of 90% or more after being treated at 180° C. for 4 hrs; a heat-resistant break strength retention rate of 90% or more after being treated at 230° C. for 30 mins; and a dry heat shrinkage of 8.0% or less. The polyamide 5X industrial yarn is widely used in the fields of sewing threads, tire cords, air bag yarns, release cloth, krama, canvas, safety belts, ropes, fishing nets, industrial filter cloth, conveyor belts, parachutes, tents, bags and suitcases.

公开(公告)号：US20240336735A1

公开(公告)日：2024-10-10

申请号：US18749779

申请日：2024-06-21

Applicant: Cathay Biotech Inc. ,  CIBT America Inc.

Inventor： Chaoxu SUN ,  Wanzhong CHEN ,  Xiang GAO ,  Xiucai LIU

IPC: C08G69/28 ,  C08K3/22 ,  D01D4/06 ,  D01D5/084 ,  D01D5/088 ,  D01D5/096 ,  D01D5/098 ,  D01F1/10 ,  D01F6/60

CPC classification number: C08G69/28 ,  C08K3/22 ,  D01D4/06 ,  D01D5/084 ,  D01D5/088 ,  D01D5/096 ,  D01D5/098 ,  D01F1/10 ,  D01F6/60 ,  C08K2003/2241 ,  C08K2201/005 ,  D10B2331/02 ,  D10B2401/02 ,  D10B2401/061 ,  D10B2401/063 ,  D10B2401/14

Abstract: A polyamide 56 resin, a fiber, a preparation method therefor and use thereof are provided. The method for preparing the polyamide 56 resin comprises a step of preparing the polyamide 56 resin from monomers by a polymerization reaction, wherein the polyamide 56 resin contains titanium dioxide, and the titanium dioxide is added during polymerization. The method for preparing the polyamide 56 resin in an embodiment can effectively prevent problems such as monofilament breakage and poor dyeing performance in a subsequent spinning process. In addition, the method is simple and easy to operate, and has a low production cost.