US 11,970,788 B2
System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn
Marcos Roberto Paulino Bueno, Sao Paulo (BR); Andre Penaquioni, Sao Paulo (BR); Alessandro Bernardi, Sao Paulo (BR); Sergio Luiz Dias Almeida, Sao Paulo (BR); Leandro Ohara Oliveira Santa Rosa, Sao Paulo (BR); Patricia Freitas Oliveira Fialho, Sao Paulo (BR); and Daniela Zaira Rauber, Sao Paulo (BR)
Assigned to Braskem America, Inc., Philadelphia, PA (US)
Filed by Braskem America, Inc., Philadelphia, PA (US)
Filed on Mar. 20, 2020, as Appl. No. 16/824,886.
Application 16/824,886 is a division of application No. 15/032,826, granted, now 11,124,895, previously published as PCT/BR2014/050004, filed on Oct. 29, 2014.
Claims priority of provisional application 61/896,911, filed on Oct. 29, 2013.
Prior Publication US 2020/0270769 A1, Aug. 27, 2020
Int. Cl. D01D 5/16 (2006.01); B29B 7/00 (2006.01); B29B 7/46 (2006.01); B29B 7/72 (2006.01); B29B 7/74 (2006.01); B29C 43/00 (2006.01); B29C 48/00 (2019.01); B29C 48/05 (2019.01); B29C 48/29 (2019.01); B29C 48/793 (2019.01); D01D 1/02 (2006.01); D01D 1/06 (2006.01); D01D 1/09 (2006.01); D01D 5/06 (2006.01); D01D 5/088 (2006.01); D01D 10/06 (2006.01); D01D 13/00 (2006.01); D01F 13/00 (2006.01); D07B 1/02 (2006.01); B29B 7/44 (2006.01); B29C 48/86 (2019.01); B29C 48/88 (2019.01); B29C 48/91 (2019.01); D01F 6/04 (2006.01); D06B 15/00 (2006.01)
CPC D01D 1/02 (2013.01) [B29B 7/007 (2013.01); B29B 7/46 (2013.01); B29B 7/726 (2013.01); B29B 7/749 (2013.01); B29C 43/00 (2013.01); B29C 48/0018 (2019.02); B29C 48/05 (2019.02); B29C 48/29 (2019.02); B29C 48/793 (2019.02); D01D 1/06 (2013.01); D01D 1/09 (2013.01); D01D 5/06 (2013.01); D01D 5/088 (2013.01); D01D 5/16 (2013.01); D01D 10/06 (2013.01); D01D 13/00 (2013.01); D01F 13/00 (2013.01); D07B 1/025 (2013.01); B29B 7/44 (2013.01); B29B 7/7461 (2013.01); B29C 48/86 (2019.02); B29C 48/91 (2019.02); B29C 48/919 (2019.02); D01F 6/04 (2013.01); D06B 15/00 (2013.01); D07B 2201/2009 (2013.01); D07B 2205/2014 (2013.01); D07B 2501/2061 (2013.01); D10B 2321/0211 (2013.01); Y02P 70/62 (2015.11)] 6 Claims
OG exemplary drawing
 
1. A device for extracting a first solvent from at least one polymeric yarn, the device comprising:
a yarn transport mechanism into which and out of which the at least one polymeric yarn is conveyed, the yarn transport mechanism comprising a main roll and an auxiliary roll;
wherein the main roll is a rotating member having a drum shape and a plurality of rods having spaces therebetween and forming a yarn conducting surface support of the main roll;
wherein the auxiliary roll is positioned external to the main roll, is configured to rotate freely around its own rotating axis to move at the same tangential speed as the main roll, and has an angle adjusting device that adjusts the angle of the auxiliary roll relative to the main roll to regulate a spacing between multiple winds of the at least one polymeric yarn or multiple yarns, when present; and
wherein the at least one polymeric warn is externally wound at least once around the yarn conducting surface support of the main roll and extends around the auxiliary roll; and
at least two washing liquid delivery devices configured to expose both faces of the at least one polymeric yarn to washing liquid, wherein at least one of the at least two washing liquid delivery devices is designed to deliver the washing liquid to the at least one polymeric yarn comprising the first solvent externally to the rotating member, and at least one of the at least two washing liquid delivery devices is designed for delivering the washing liquid in at least one polymeric yarn internally to the rotating member;
wherein the main roll has a variable occupancy width configured to vary the at least one polymeric yarn in the yarn transport mechanism depending on the speed at which the at least one polymeric yarn is conveyed to the yarn transport mechanism to maintain a constant contact time between the at least one polymeric yarn and the washing liquid applied by the at least two washing liquid delivery devices.