The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 08, 2019

Filed:

Dec. 02, 2015
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Byoung Kyu Chun, Daejeon, KR;

Hyong Min Bahn, Daejeon, KR;

Young Young Hwang, Daejeon, KR;

Jung Jun Park, Daejeon, KR;

Moo Ho Hong, Daejeon, KR;

Ki Jae Lee, Daejeon, KR;

Un Ko, Daejeon, KR;

Young Wook Son, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 64/18 (2006.01); C08L 69/00 (2006.01); C08G 64/38 (2006.01); C08G 77/448 (2006.01); C08J 5/00 (2006.01); C08G 64/16 (2006.01); C08G 64/06 (2006.01); C08G 64/30 (2006.01); C08G 64/08 (2006.01); C08K 5/3475 (2006.01); C08L 83/04 (2006.01); C08G 64/24 (2006.01); C08L 83/10 (2006.01); C08K 5/00 (2006.01); C08G 64/22 (2006.01); C08G 77/14 (2006.01); C08L 83/06 (2006.01); C08J 5/08 (2006.01); C08K 5/521 (2006.01); C08L 51/04 (2006.01); C08K 5/42 (2006.01); C09K 21/14 (2006.01); C08G 77/20 (2006.01);
U.S. Cl.
CPC ...
C08L 69/00 (2013.01); C08G 64/06 (2013.01); C08G 64/085 (2013.01); C08G 64/1666 (2013.01); C08G 64/1691 (2013.01); C08G 64/18 (2013.01); C08G 64/186 (2013.01); C08G 64/22 (2013.01); C08G 64/24 (2013.01); C08G 64/307 (2013.01); C08G 64/38 (2013.01); C08G 77/14 (2013.01); C08G 77/20 (2013.01); C08G 77/448 (2013.01); C08J 5/00 (2013.01); C08J 5/08 (2013.01); C08K 5/005 (2013.01); C08K 5/3475 (2013.01); C08K 5/42 (2013.01); C08K 5/521 (2013.01); C08L 51/04 (2013.01); C08L 69/005 (2013.01); C08L 83/04 (2013.01); C08L 83/06 (2013.01); C08L 83/10 (2013.01); C09K 21/14 (2013.01); C08L 2201/08 (2013.01); C08L 2201/10 (2013.01); C08L 2205/02 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); C08L 2205/035 (2013.01); C08L 2205/05 (2013.01); C08L 2205/06 (2013.01); C08L 2207/53 (2013.01);
Abstract

Disclosed is a copolycarbonate having an aromatic polycarbonate-based first repeating unit and one or more aromatic polycarbonate-based second repeating units having siloxane bonds, where the copolycarbonate provides an improved residence heat stability, and where the second repeating unit includes a repeating unit represented by Chemical Formula 2 and a repeating unit represented by Chemical Formula 3:


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