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

• Main Authors: Penaquioni, Andre, Bernardi, Alessandro, Almeida, Sergio Luiz Dias, Santa Rosa, Leandro Ohara Oliveira, Bueno, Marcos Roberto Paulino, Rauber, Daniela Zaira, Fialho, Patricia Freitas Oliveira
• Format: Patent
• Language: English
• Published: 25.01.2024
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CABLES OTHER THAN ELECTRIC; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; MAKING GRANULES OR PREFORMS; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; ROPES; ROPES OR CABLES IN GENERAL; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SPINNING; TEXTILES; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention is directed to a method and a system for the production of at least one polymeric yarn comprising means for mixing a polymer (1) with a first solvent yielding a mixture; means for homogenizing the mixture; means for rendering the mixture inert (21, 22, 23); means for dipping the mixture into a quenching bath (30), wherein an air gap is maintained before the mixture reaches the quenching bath (30) liquid surface forming at least one polymeric yarn; means for drawing (41) the at least one polymeric yarn at least once; means for washing (5) the at least one polymeric yarn with a second solvent that is more volatile than the first solvent; means for heating the at least one polymeric yarn (6); means for drawing at room temperature (7) the at least one polymeric yarn at least once; and means for heat drawing (8) the at least one polymeric yarn at least once.The instant invention also concerns a system and method of dosing a polymer mixture with a first solvent into an extruder (26), a device (5), a system and a method of solvent extraction from at least one polymeric yarn, and a method and system of mechanical pre-recovery (4) of at least one liquid in at least one polymeric yarn.