公开(公告)号：US20230323596A1

公开(公告)日：2023-10-12

申请号：US18209557

申请日：2023-06-14

Applicant: KURARAY CO., LTD.

Inventor： Forrest SLOAN

IPC: D07B1/02 ,  C08G63/06 ,  C08G69/12

CPC classification number: D07B1/025 ,  C08G63/065 ,  C08G69/12 ,  C08G2250/00 ,  D07B2201/1096 ,  D07B2501/2015 ,  G01N3/34

Abstract: Disclosed herein are ropes containing bundles of filaments, where each bundle includes at least 70% by volume of liquid crystal polymer filaments, and where at least one bundle includes liquid crystal polymer filaments of at least 10 denier per filament in size. Also disclosed herein are methods of pulling or lifting an object by applying tension to such a rope connected to the object, where the rope is arranged over a sheave or a non-rotating guide surface, and a ratio of a diameter of the sheave or an effective diameter of the non-rotating guide surface, D, to a diameter of the rope, d, is at least 20:1.

公开(公告)号：US20220002943A1

公开(公告)日：2022-01-06

申请号：US17358301

申请日：2021-06-25

Applicant: KURARAY CO., LTD.

Inventor： Forrest SLOAN ,  Patrick COFFEY

IPC: D07B1/16 ,  D04C1/02 ,  D07B1/02

Abstract: Disclosed herein are methods for producing core-sheath structures by shaping at least one filament bundle containing a plurality of filaments to form at least one shaped strand of filaments, and braiding a plurality of strands, including the at least one shaped strand of filaments, over a core to form the core-sheath structure containing a braided sheath of the strands surrounding the core, wherein the shaped strand of filaments is an untwisted strand having a twist level of less than 1 turn per meter, a cross-sectional aspect ratio of the shaped strand of filaments is at least 3:1, as measured in the braided sheath, a thickness of at least a portion of the braided sheath ranges from about 10 to about 200 μm, and the braided sheath comprises a synthetic fiber having a tensile strength of greater than 12 cN/dtex. Also disclosed herein are core-sheath structures formed by such methods.

公开(公告)号：US20240076814A1

公开(公告)日：2024-03-07

申请号：US18140061

申请日：2023-04-27

Applicant: KURARAY CO., LTD.

Inventor： Forrest SLOAN ,  Patrick Coffey

IPC: D04C1/12 ,  D04C1/02 ,  D07B1/02 ,  D07B1/16

CPC classification number: D04C1/12 ,  D04C1/02 ,  D07B1/025 ,  D07B1/162 ,  D07B2201/102 ,  D07B2201/1096 ,  D07B2201/209

Abstract: Disclosed herein are methods for producing core-sheath structures by shaping at least one filament bundle containing a plurality of filaments to form at least one shaped strand of filaments, and braiding a plurality of strands, including the at least one shaped strand of filaments, over a core to form the core-sheath structure containing a braided sheath of the strands surrounding the core, wherein the shaped strand of filaments is an untwisted strand having a twist level of less than 1 turn per meter, a cross-sectional aspect ratio of the shaped strand of filaments is at least 3:1, as measured in the braided sheath, a thickness of at least a portion of the braided sheath ranges from about 10 to about 200 μm, and the braided sheath comprises a synthetic fiber having a tensile strength of greater than 12 cN/dtex. Also disclosed herein are core-sheath structures formed by such methods.