Title:
METHOD FOR PREPARING POLYAMIDE RESIN
Document Type and Number:
WIPO Patent Application WO/2015/084042
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing a polyamide resin, comprising the steps of: (a) preparing a polyamide polymer by anionically polymerizing a monomer comprising 2-pyrrolidone; (b) refining an unreacted monomer in the polyamide polymer and a catalyst with water; (c) pH-controlling through an ion exchange of the refined water; and (d) recovering the unreacted monomer by concentrating the pH-controlled water.
Inventors:
LEE SU-JEONG (KR)
HYUN DONG-HUN (KR)
LEE HEE-JONG (KR)
HYUN DONG-HUN (KR)
LEE HEE-JONG (KR)
Application Number:
PCT/KR2014/011742
Publication Date:
June 11, 2015
Filing Date:
December 03, 2014
Export Citation:
Assignee:
GS CALTEX CORP (KR)
International Classes:
C08G69/16; C08G69/24; C08L77/02
Foreign References:
| KR20130015154A | 2013-02-13 | |||
| KR20130097294A | 2013-09-03 | |||
| KR20110123136A | 2011-11-14 | |||
| JP2009007903A | 2009-01-15 | |||
| JP2003261677A | 2003-09-19 | |||
| KR20130112348A | 2013-10-14 |
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
특허법인 대아 (KR)
특허법인 대아 (KR)
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