US 10,889,915 B2
Producing fibers using spinnerets
Seung-Hak Choi, Dhahran (SA); and Sarah N. Almahfoodh, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Apr. 24, 2018, as Appl. No. 15/961,467.
Claims priority of provisional application 62/624,311, filed on Jan. 31, 2018.
Prior Publication US 2019/0233971 A1, Aug. 1, 2019
Int. Cl. D01D 5/24 (2006.01); B01D 69/08 (2006.01); B29C 48/05 (2019.01); B29C 48/00 (2019.01); D01D 5/253 (2006.01); D01D 4/02 (2006.01); D01D 5/22 (2006.01); B29L 31/00 (2006.01)
CPC D01D 5/24 (2013.01) [B01D 69/082 (2013.01); B01D 69/085 (2013.01); B01D 69/087 (2013.01); B29C 48/0015 (2019.02); B29C 48/05 (2019.02); D01D 4/02 (2013.01); D01D 4/027 (2013.01); D01D 5/22 (2013.01); D01D 5/253 (2013.01); B01D 2325/08 (2013.01); B29L 2031/731 (2013.01); B29L 2031/755 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for producing fibers with corrugations, the method comprising:
flowing a first fluid through a first channel at least partially defined in a spinneret;
rotating a projection of the spinneret that extends into the first channel of the spinneret as the first fluid flows past the projection; and
solidifying the first fluid to form a fiber downstream of the projection;
wherein rotating the projection comprises rotating the projection in a first direction and rotating the projection in a second direction opposite the first direction.