公开(公告)号：US20230280559A1

公开(公告)日：2023-09-07

申请号：US18024326

申请日：2021-08-31

申请人： EMTELLE UK LIMITED

发明人： William George RAE ,  Jonathan Paul TAYLOR ,  Eben Colin KIRKPATRICK ,  Jamie Ross MCGEE

IPC分类号： G02B6/44 ,  C03C25/18 ,  C03C25/323 ,  C03C25/40 ,  C03C25/285 ,  C03C25/30 ,  C09D167/02 ,  C08L67/02

CPC分类号： G02B6/443 ,  G02B6/4438 ,  G02B6/4486 ,  C03C25/18 ,  C03C25/323 ,  C03C25/40 ,  C03C25/285 ,  C03C25/30 ,  C09D167/02 ,  C08L67/02

摘要： A fibre optic cable (500, 700, 1420) comprises one or more fibre units (502, 1302). Each fibre unit comprises two or more optical fibres (506, 1306) embedded in a solid resin material (520, 1320) to form a coated fibre bundle and an extruded polymer sheath (524, 1324). The sheath (524, 1324) of each fibre unit is primarily polybutylene terephthalate (PBT), with a friction reducing additive such as polydimethylsiloxane (PDMS). The additive may be polythene based and/or polyacrylate based. The fibre unit may be applied in a pullback cable (500, 800, 1100), as a cable for pulling or pushing or as a blown fibre cable (502, 1302).