Title:
CONTINUOUS METHOD AND SYSTEM FOR THE PRODUCTION OF AT LEAST ONE POLYMERIC YARN AND POLYMERIC YARN
Document Type and Number:
WIPO Patent Application WO/2016/089969
Kind Code:
A3
Abstract:
The present invention provides a continuous method for the production of at least one polymeric yarn comprising the steps of: mixing a polymer with a first solvent generating a mixture; homogenizing the mixture; rendering the mixture inert; dosing the mixture to an extruder; immersing the mixture in a quenching bath (30), wherein an air gap is maintained before the mixture achieves the surface of the liquid of the quenching bath (30) forming at least one polymeric yarn; drawing at least once the at least one polymeric yarn; washing the polymeric yam with a second solvent that is more volatile than the first solvent; heating the at least one polymeric yarn; drawing at room temperature, at least once, the at least one polymeric yarn; and heat drawing, at least once, the at least one polymeric yarn. The present invention further provides a continuous system for the production of at least one polymeric yarn and a polymeric yarn made according to the above stated method.
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Inventors:
BUENO MARCOS ROBERTO PAULINO (BR)
BERNARDI ALESSANDRO (BR)
WESTFAHL HARRY (BR)
BERNARDI ALESSANDRO (BR)
WESTFAHL HARRY (BR)
Application Number:
PCT/US2015/063383
Publication Date:
August 25, 2016
Filing Date:
December 02, 2015
Export Citation:
Assignee:
BRASKEM AMERICA INC (US)
International Classes:
D01F6/04; D01D5/06; D02J1/22
Foreign References:
| US8003027B2 | 2011-08-23 | |||
| US4413110A | 1983-11-01 | |||
| US20080048355A1 | 2008-02-28 | |||
| US20110268967A1 | 2011-11-03 | |||
| US5474722A | 1995-12-12 | |||
| US20130225022A1 | 2013-08-29 | |||
| US20120306109A1 | 2012-12-06 | |||
| US20100233480A1 | 2010-09-16 |
Other References:
See also references of EP 3230499A4
Attorney, Agent or Firm:
PAIKOFF, Richard, A. et al. (30 South 17th StreetPhiladelphia, PA, US)
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