US 12,312,708 B2
Apparatus and a method of drawing a fibre
Andrew Chwee Aun Wan, Singapore (SG); and Du Chan, Singapore (SG)
Assigned to Agency for Science, Technology and Research, Singapore (SG)
Appl. No. 17/625,049
Filed by Agency for Science, Technology and Research, Singapore (SG)
PCT Filed Jul. 2, 2020, PCT No. PCT/SG2020/050379
§ 371(c)(1), (2) Date Jan. 5, 2022,
PCT Pub. No. WO2021/006813, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 10201906350W (SG), filed on Jul. 9, 2019.
Prior Publication US 2022/0282401 A1, Sep. 8, 2022
Int. Cl. D01D 5/32 (2006.01); A61K 9/50 (2006.01); D01D 5/00 (2006.01); D01D 7/00 (2006.01); D01F 8/00 (2006.01); D01H 5/72 (2006.01)
CPC D01D 5/32 (2013.01) [D01D 5/0046 (2013.01); D01H 5/72 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for drawing a fibre, the apparatus comprising,
a first outlet for dispensing a volume of a first polyionic polymer solution;
a second outlet for dispensing a volume of a second oppositely charged polyionic polymer solution; said second outlet disposed adjacent to the first outlet such that the polymer solutions dispensed therefrom are capable of contacting each other to form a fused droplet comprising a polyelectrolyte complex interface separating the first polyionic and second polyionic polymer solutions;
a tip member disposed between, or in close proximity to, the first and second outlets for coupling to a starting portion of the fibre; and
an adhesive substrate disposed at an apex region of the tip member to facilitate coupling to the starting portion of the fibre;
wherein the fused droplet is arranged to move along a fibre drawing path under gravitational force in an opposing direction from the first and second outlets such that nascent fibre is drawn from the polyelectrolyte complex interface.