US 9,809,677 B2
Polycarbonate composition and article comprising the same
Jung Jun Park, Daejeon (KR); Young Young Hwang, Daejeon (KR); Moo Ho Hong, Daejeon (KR); and Hyong Min Bahn, Daejeon (KR)
Assigned to LG Chem, Ltd., Seoul (KR)
Appl. No. 15/27,907
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Dec. 4, 2015, PCT No. PCT/KR2015/013243
§ 371(c)(1), (2) Date Apr. 7, 2016,
PCT Pub. No. WO2016/089168, PCT Pub. Date Jun. 9, 2016.
Claims priority of application No. 10-2014-0173005 (KR), filed on Dec. 4, 2014.
Prior Publication US 2016/0326321 A1, Nov. 10, 2016
This patent is subject to a terminal disclaimer.
Int. Cl. C08L 69/00 (2006.01); C08G 64/08 (2006.01); C08G 64/18 (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); C08K 5/3475 (2006.01); C08L 83/04 (2006.01); C08G 64/24 (2006.01); C08L 83/10 (2006.01)
CPC C08G 64/085 (2013.01) [C08G 64/06 (2013.01); C08G 64/1666 (2013.01); C08G 64/1691 (2013.01); C08G 64/18 (2013.01); C08G 64/186 (2013.01); C08G 64/24 (2013.01); C08G 64/307 (2013.01); C08G 64/38 (2013.01); C08G 77/448 (2013.01); C08J 5/00 (2013.01); C08K 5/3475 (2013.01); C08L 69/00 (2013.01); C08L 69/005 (2013.01); C08L 83/04 (2013.01); C08L 83/10 (2013.01); C08L 2201/10 (2013.01); C08L 2205/02 (2013.01); C08L 2205/025 (2013.01)] 16 Claims
 
1. A polycarbonate composition comprising:
(a) a branched polycarbonate comprising a repeating unit represented by Chemical Formula 1 and a trivalent or tetravalent branched repeating unit connecting the plurality of repeating units represented by Chemical Formula 1 to each other; and
(b) a copolycarbonate comprising an aromatic polycarbonate-based first repeating unit, and one or more aromatic polycarbonate-based second repeating units having siloxane bonds,
wherein the second repeating unit comprises a repeating unit represented by Chemical Formula 4 and a repeating unit represented by Chemical Formula 5:

OG Complex Work Unit Drawing
in the Chemical Formula 1,
R1, R2, R3 and R4 are each independently hydrogen, C1-10 alkyl, C1-10 alkoxy, or halogen, and
Z is C1-10 alkylene unsubstituted or substituted with phenyl, C3-15 cycloalkylene unsubstituted or substituted with C1-10 alkyl, O, S, SO, SO2, or CO,

OG Complex Work Unit Drawing
in Chemical Formula 4,
X1 is each independently C1-10 alkylene,
R′5 is each independently hydrogen; C1-15 alkyl unsubstituted or substituted with oxiranyl, oxiranyl-substituted C1-10 alkoxy, or C6-20 aryl; halogen; C1-10 alkoxy; allyl; C1-10 haloalkyl; or C6-20 aryl, and
n is an integer of 10 to 200,

OG Complex Work Unit Drawing
in Chemical Formula 5,
X2 is each independently C1-10 alkylene,
Y1 is each independently hydrogen, C1-6 alkyl, halogen, hydroxy, C1-6 alkoxy, or C6-20 aryl,
R′6 is each independently hydrogen; C1-15 alkyl unsubstituted or substituted with oxiranyl, oxiranyl-substituted C1-10 alkoxy, or C6-20 aryl; halogen; C1-10 alkoxy; allyl; C1-10 haloalkyl; or C6-20 aryl, and
m is an integer of 10 to 200, and
wherein a weight ratio of the branched polycarbonate and the copolycarbonate is 20:80 to 40:60.