Title:
MANUFACTURING METHOD OF FLAME RETARDANT POLYESTER COMPOSITION
Document Type and Number:
Japanese Patent JP2016160429
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of flame retardant polyester having excellent flame retardancy, suppressing production of a byproduct and small in melting point depression of a polymer.SOLUTION: There is provided a manufacturing method of flame retardant polyester from dicarboxylic acid or an ester forming derivative thereof and diol or an ester forming derivative thereof as main raw materials including initiating a polycondensation reaction within 80 minutes after adding a phosphorus compound represented by the formula (1) to ethylene glycol with weight ratio of 10:90 to 50:50 with slurry shape to obtain polyester to which phosphorus of 0.30 to 1.10 wt.% in terms of element is polymerized. In the formula (1), R1 is an alkyl group having 1 to 18 carbon atoms, an aryl group or a hydroxyl group.SELECTED DRAWING: None
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Inventors:
KAWAMATA HIROYOSHI
ITO TOMOAKI
MATSUMI DAISUKE
CHENG JUAN
BAI LIJUN
MOCHIZUKI KATSUHIKO
ITO TOMOAKI
MATSUMI DAISUKE
CHENG JUAN
BAI LIJUN
MOCHIZUKI KATSUHIKO
Application Number:
JP2015128449A
Publication Date:
September 05, 2016
Filing Date:
June 26, 2015
Export Citation:
Assignee:
TORAY INDUSTRIES
International Classes:
C08G63/78; C08G63/692
Domestic Patent References:
| JPH07102418A | 1995-04-18 | |||
| JP2002348364A | 2002-12-04 | |||
| JP2000226447A | 2000-08-15 | |||
| JP2013189521A | 2013-09-26 | |||
| JPH1160710A | 1999-03-05 | |||
| JP2005320533A | 2005-11-17 |
Foreign References:
| US20060052574A1 | 2006-03-09 |