Title:
POLYAMIDE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2014/065594
Kind Code:
A1
Abstract:
The polyamide production method of the present invention comprises the steps of: producing a low-order condensate by effecting a polycondensation reaction between a dicarboxylic acid component containing between about 5 and about 40 mol.% of terephthalic acid, and a diamine component containing between about 70 and about 100 mol.% of a xylylenediamine in which the content of paraxylylenediamine is between about 50 and about 100 mol.%, under conditions of a reaction temperature of at least about 200°C and less than about 230°C; discharging and cooling the low-order condensate at a pressure at or below atmospheric pressure, in an inert gas atmosphere; and subjecting the discharged and cooled low-order condensate to solid state polymerisation. The production method makes it possible to obtain a polyamide having outstanding mechanical strength, heat resistance, colour tone and the like without problems such as gelling.
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Inventors:
KANDA TOMOMICH (JP)
SHIMODA TOMOAKI (JP)
SHIMODA TOMOAKI (JP)
Application Number:
PCT/KR2013/009486
Publication Date:
May 01, 2014
Filing Date:
October 23, 2013
Export Citation:
Assignee:
CHEIL IND INC (KR)
International Classes:
C08G69/26; C08G69/30; C08L77/06
Foreign References:
| JP2012153749A | 2012-08-16 | |||
| KR20120102055A | 2012-09-17 | |||
| JPH083312A | 1996-01-09 | |||
| JP2010215682A | 2010-09-30 | |||
| US4831108A | 1989-05-16 | |||
| KR20000012076A | 2000-02-25 |
Attorney, Agent or Firm:
AJU KIM CHANG & LEE (KR)
특허법인아주양헌 (KR)
특허법인아주양헌 (KR)
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