NOVEL METHOD FOR PREPARING HIGHLY TRANSPARENT AND HIGHLY HEAT-RESISTANT POLYCARBONATE ESTER

Title:

NOVEL METHOD FOR PREPARING HIGHLY TRANSPARENT AND HIGHLY HEAT-RESISTANT POLYCARBONATE ESTER

Document Type and Number:

WIPO Patent Application WO/2016/117872

Kind Code:

A1

Abstract:

The present invention relates to a method for preparing a bio-based polycarbonate ester, the method comprising the steps of: (1) preparing a compound represented by chemical formula 3 by converting a compound represented by chemical formula 2 into an intermediate reactant having an easily detachable functional group, followed by a nucleophilic reaction with phenol; and (2) preparing a compound including a repeat unit represented by chemical formula 1 by a polycarbonate melt condensation polymerization of the compound represented by chemical formula 3, prepared in step (1), a compound represented by chemical formula 4, and 1,4:3,6-dianhydrohexitol. The bio-based polycarbonate ester according to the present invention can regulate merits and demerits of physical properties obtained from each repeat unit, and can be favorably used for various uses due to high degrees of transparency and heat resistance thereof.

Inventors:

OH KWANG SEI (KR)
LEE JONG-IN (KR)

Application Number:

PCT/KR2016/000279

Publication Date:

July 28, 2016

Filing Date:

January 12, 2016

Export Citation:

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Assignee:

SK CHEMICALS CO LTD (KR)

International Classes:

C08G64/20; C08G63/78; C08L69/00

Domestic Patent References:

WO2012078825A1

2012-06-14

Foreign References:

KR20150004085A	2015-01-12
KR20100029768A	2010-03-17
KR20150003686A	2015-01-09
KR20140097918A	2014-08-07

Other References: