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

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United States of America Patent

PATENT NO 11866849
APP PUB NO 20200283929A1
SERIAL NO

16824775

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
BRASKEM AMERICA INCPENNSYLVANIA AMERICA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Almeida, Sergio Luiz Dias Sao Paulo, BR 5 6
Bernardi, Alessandro Sao Paulo, BR 18 58
Bueno, Marcos Roberto Paulino Sao Paulo, BR 16 21
Fialho, Patricia Freitas Oliveira Sao Paulo, BR 5 6
Penaquioni, Andre Sao Paulo, BR 5 6
Rauber, Daniela Zaira Sao Paulo, BR 5 6
Santa, Rosa Leandro Ohara Oliveira Sao Paulo, BR 5 6

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