POLYSILOXANE-POLYCARBONATE COPOLYMER USING HYDROXY-TERMINATED POLYSILOXANE MIXTURE, AND METHOD FOR PRODUCING SAME

Title:

POLYSILOXANE-POLYCARBONATE COPOLYMER USING HYDROXY-TERMINATED POLYSILOXANE MIXTURE, AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2021/215838

Kind Code:

A1

Abstract:

The present invention relates to a polysiloxane-polycarbonate copolymer using a hydroxyl terminated polysiloxane mixture, and a method for producing same, and more specifically, to: a polysiloxane-polycarbonate copolymer which includes hydroxy-terminated polysiloxanes of chemical formulae 1 and 2 in a specific weight ratio as repeating units, and thus exhibits excellent transmittance and low-temperature impact strength compared to the case of using either of the hydroxy-terminated polysiloxanes by itself, and in which the overall production yield of the raw material polysiloxane is improved, such that the polysiloxane-polycarbonate copolymer is excellent in terms of economics; and a method for producing same.

Inventors:

CHANG YUN JU (KR)
SHIN KYUNG MOO (KR)
KANG KI TAE (KR)
KIM MI RAN (KR)
JUNG SEUNG PIL (KR)
CHOI JIN SIK (KR)
HEO SEONG HYEN (KR)

Application Number:

PCT/KR2021/005079

Publication Date:

October 28, 2021

Filing Date:

April 22, 2021

Export Citation:

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Assignee:

SAMYANG CORP (KR)

International Classes:

C08G64/18; C08G64/02; C08G64/08; C08G64/16; C08G77/18; C08G77/42; C08G77/50; C08L69/00; C08L83/10

Foreign References:

KR20200033365A	2020-03-30
JP2011102364A	2011-05-26
KR20130047332A	2013-05-08
KR20130047612A	2013-05-08
KR20160002485A	2016-01-08
US20030105226A1	2003-06-05
US2999835A	1961-09-12
US3028365A	1962-04-03
US3153008A	1964-10-13
US3334154A	1967-08-01

Other References: