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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11124895 B1

PDFFull Text
Date of Patent:
Sep. 21, 2021

Filed:

Oct. 29, 2014

System and method for measuring out a polymer and first solvent mixture, device, system and method for extracting a solvent from at least one polymer strand, system and method for mechanically pre-recovering at least one liquid from at least one polymer strand, and a continuous system and method for the production of at least one polymer strand

Applicant:

Braskem America, Inc., Philadelphia, PA (US);

Inventors:

Marcos Roberto Paulino Bueno, Bahia, BR;

Andre Penaquioni, Bahia, BR;

Alessandro Bernardi, Bahia, BR;

Sergio Luiz Dias Almeida, Sao Paulo, BR;

Leandro Ohara Oliveira Santa Rosa, Bahia, BR;

Patricia Freitas Oliveira Fialho, Bahia, BR;

Daniela Zaira Rauber, Bahia, BR;

Assignee:

Braskem America, Inc., Philadelphia, PA (US);

Attorney:

Duane Morris LLP

Primary Examiner:

Matthew J Daniels

Assistant Examiner:

Andrew D Graham

Int. Cl.
CPC ...
D01D 1/02 (2006.01); D01D 5/06 (2006.01); B29C 48/05 (2019.01); B29C 48/00 (2019.01); B29C 48/29 (2019.01); D01D 10/06 (2006.01); B29B 7/00 (2006.01); B29B 7/46 (2006.01); D01D 1/09 (2006.01); D01F 13/00 (2006.01); B29C 43/00 (2006.01); D01D 13/00 (2006.01); B29C 48/793 (2019.01); D01D 5/16 (2006.01); B29B 7/74 (2006.01); D07B 1/02 (2006.01); D01D 1/06 (2006.01); D01D 5/088 (2006.01); B29B 7/72 (2006.01); B29C 48/91 (2019.01); D01F 6/04 (2006.01); B29C 48/88 (2019.01); D06B 15/00 (2006.01); B29B 7/44 (2006.01); B29C 48/86 (2019.01);
U.S. Cl.
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);
Abstract

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 () with a first solvent yielding a mixture; means for homogenizing the mixture; means for rendering the mixture inert (); means for dipping the mixture into a quenching bath (), wherein an air gap is maintained before the mixture reaches the quenching bath () liquid surface forming at least one polymeric yarn; means for drawing () the at least one polymeric yarn at least once; means for washing () 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 (); means for drawing at room temperature () the at least one polymeric yarn at least once; and means for heat drawing () 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 (), a device (), a system and a method of solvent extraction from at least one polymeric yarn, and a method and system of mechanical pre-recovery () of at least one liquid in at least one polymeric yarn.

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